CN117998528A

CN117998528A - Mobile mechanism and method and device for same

Info

Publication number: CN117998528A
Application number: CN202310124894.4A
Authority: CN
Inventors: 汪巍崴; 王弘; 许丽香
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2022-11-02
Filing date: 2023-02-03
Publication date: 2024-05-07

Abstract

The present disclosure provides a mechanism for movement and a method and apparatus therefor, wherein a method performed by a first node of a communication system is disclosed comprising: sending a first message to a second node, wherein the first message comprises related information of a state of the first node; receiving a second message from a second node, wherein the second message comprises first configuration information related to the signal transmission and/or reception of the first node; and transmitting and/or receiving signals based on the first configuration information.

Description

Mobile mechanism and method and device for same

Technical Field

The present application relates to wireless communication technology, and in particular, to a mobile mechanism and a method and apparatus for the same.

Background

In order to meet the increasing demand for wireless data communication services since the deployment of 4G communication systems, efforts have been made to develop improved 5G or quasi 5G communication systems. Therefore, a 5G or quasi 5G communication system is also referred to as a "super 4G network" or a "LTE-after-system".

Wireless communication is one of the most successful innovations in modern history. Recently, the number of subscribers to wireless communication services exceeds 50 billion and continues to grow rapidly. As smartphones and other mobile data devices (e.g., tablet computers, notebook computers, netbooks, e-book readers, and machine type devices) become increasingly popular among consumers and businesses, the demand for wireless data services is rapidly growing. To meet the high-speed growth of mobile data services and support new applications and deployments, it is important to improve the efficiency and coverage of the wireless interface.

In a mobile network, a ue may be handed over between different cells. The main problem caused by the handover is that the user will experience a communication interruption in the process. In the future mobile network (6G), networks that users can access are various, such as different access technologies (e.g., LTE, NR,6G,WIFI) used by cells, different frequencies (e.g., FR1, FR2, FR4, MMWave, THz, etc.) used by cells, and different coverage areas (e.g., land, non-land, satellite, HAPS, drone, etc.) used by cells. When a user switches between these different cells, a more severe interruption of the user communication may result.

Disclosure of Invention

How to solve the interruption caused by the handover during the movement of the user equipment is a problem that needs to be solved at present.

According to an aspect of the present disclosure, there is provided a method performed by a first node of a communication system, comprising: sending a first message to a second node, wherein the first message comprises related information of a state of the first node; receiving a second message from a second node, wherein the second message comprises first configuration information related to the signal transmission and/or reception of the first node; and transmitting and/or receiving signals based on the first configuration information.

According to an embodiment of the present disclosure, the information about the state in which the first node is located includes at least one of: information identifying that the first node is in a state in which no cell/frequency point/node is found; information identifying that the first node is in a state of discovering a cell/frequency point/node; information indicating that the first node is in a state in which a downlink first synchronization signal has been received; information indicating that the first node is in a state in which the downlink synchronization signal has been completed; information indicating that the first node is in a state of transmitting an uplink synchronization signal; information indicating that the first node is in a state in which uplink synchronization has been acquired.

According to an embodiment of the present disclosure, the first configuration information related to the transmission and/or reception of the signal by the first node includes at least one of the following information: first configuration identification information for identifying a configuration required for the first node to perform signal reception and/or transmission; first target indication information for indicating a target to which a signal received and/or transmitted by the first node belongs; first signal configuration information indicating configuration information of signals that the first node needs to receive and/or transmit; first signaling information for instructing the first node to perform signal reception and/or transmission of configuration information required; first access information indicating a configuration used by the first node when accessing the target cell.

According to an embodiment of the present disclosure, further comprising: receiving a third message from a second node, wherein the third message comprises second configuration information related to the signal transmission and/or reception of the first node; wherein, the sending and/or receiving of the signal comprises: and transmitting and/or receiving signals based on the first configuration information and the second configuration information.

According to an embodiment of the disclosure, in response to a first message sent to a second node, a first request message including information about a state in which the first node is located is sent from the second node to a third node, and a first response message including the first configuration information is sent from the third node to the second node.

According to an embodiment of the present disclosure, further comprising: and sending a first indication message indicating the first node to select to access or the accessed cell to the second node and/or the third node.

According to an embodiment of the present disclosure, wherein the first target indication information includes at least one of the following information: information related to a node where a signal received and/or transmitted by a first node is located, information related to a cell where the signal received and/or transmitted by the first node is located, and information indicating a frequency point where the signal received and/or transmitted by the first node is located; wherein the first signal configuration information includes at least one of: information identifying a set of configurations of signals received and/or transmitted by the first node, information indicating a type of signals received and/or transmitted by the first node, information indicating resources used for receiving and/or transmitting signals, cell timing information indicating offsets of timings between different cells, configuration information of beams required for signal reception and/or transmission by the first node, information of sequences contained in signals received and/or transmitted by the first node, information indicating a timing advance required when the first node transmits signals, information indicating a validity time of configuration information contained in configuration information of the first signal; wherein the first signaling configuration information includes at least one of the following information: information identifying a set of configurations required for the first node to perform signal reception and/or transmission, information indicating a time range in which the first node performs signal reception and/or transmission, information indicating a behavior of the first node, information indicating a type of a signal received and/or transmitted by the first node, information indicating a condition in which the first node performs signal reception and/or transmission.

According to an embodiment of the present disclosure, the second configuration information related to the transmission and/or reception of the signal by the first node includes at least one of the following information: information related to a configuration required for instructing the first node to perform signal reception and/or transmission, information related to a node to which the signal received and/or transmitted by the first node belongs, information related to a cell to which the signal received and/or transmitted by the first node belongs, information related to a frequency point to which the signal received and/or transmitted by the first node belongs, information related to a configuration of the signal received and/or transmitted by the first node, information related to a configuration required for instructing the first node to perform signal reception and/or transmission, information related to a beam required for instructing the first node to perform signal reception and/or transmission, and information related to a timing advance required for transmitting an uplink signal.

According to an embodiment of the present disclosure, wherein the first message further comprises at least one of the following information: information about a node for which information reported by the first node is indicated, information about a cell for which information reported by the first node is indicated, information about a frequency point for which information reported by the first node is indicated, and information about a measurement result of a signal by the first node.

According to an embodiment of the present disclosure, wherein the first request message further comprises at least one of the following information: information indicating a cell in which a signal that the first node may receive and/or transmit is located, information indicating a frequency point in which the signal that the first node may receive and/or transmit is located, information indicating a measurement result of the signal by the first node, and information indicating a state in which the first node is located; wherein the first response message includes at least one of the following information: information indicating a cell in which a signal that the first node may receive and/or transmit is located, information indicating a frequency point in which the signal that the first node may receive and/or transmit is located, information indicating configuration information that the signal on a serving cell of the third node transmits and receives, and information indicating configuration information that is used when the signal on the serving cell of the third node is transmitted and/or received.

According to another aspect of the present disclosure, there is provided a method performed by a second node of a communication system, comprising: receiving a first message from a first node, wherein the first message comprises relevant information of a state of the first node; and sending a second message to the first node, wherein the second message comprises first configuration information related to the sending and/or receiving of the signal by the first node.

According to an embodiment of the present disclosure, further comprising: transmitting a third message to the first node, wherein the third message comprises second configuration information related to the transmission and/or the reception of signals by the first node; wherein, the sending and/or receiving of the signal comprises: and transmitting and/or receiving signals based on the first configuration information and the second configuration information.

According to an embodiment of the present disclosure, further comprising: in response to a first message received from a first node, a first request message including information about a state in which the first node is located is sent to a third node, and a first response message including the first configuration information is received from the third node.

According to an embodiment of the present disclosure, further comprising: a first indication message is received from a first node indicating that the first node selects to access or a cell to be accessed.

According to an embodiment of the present disclosure, wherein the first target indication information includes at least one of the following information: information related to a node where a signal received and/or transmitted by a first node is located, information related to a cell where the signal received and/or transmitted by the first node is located, and information indicating a frequency point where the signal received and/or transmitted by the first node is located; wherein the first signal configuration information includes at least one of: information identifying a set of configurations of signals received and/or transmitted by the first node, information indicating a type of signals received and/or transmitted by the first node, information indicating resources used for receiving and/or transmitting signals, cell timing information indicating offsets of timings between different cells, configuration information of beams required for signal reception and/or transmission by the first node, information of sequences contained in signals received and/or transmitted by the first node, information indicating a timing advance required when the first node transmits signals, information indicating a validity time of configuration information contained in the configuration information of the first signal; wherein the first signaling configuration information includes at least one of the following information: information identifying a set of configurations required for the first node to perform signal reception and/or transmission, information indicating a time range in which the first node performs signal reception and/or transmission, information indicating a behavior of the first node, information indicating a type of a signal received and/or transmitted by the first node, information indicating a condition in which the first node performs signal reception and/or transmission.

According to another aspect of the present disclosure, there is provided a method performed by a third node of a communication system, comprising: a first request message comprising information about a state in which the first node is located is received from the second node, and a first response message comprising first configuration information about the transmission and/or reception of signals at said first node is transmitted to the second node.

According to an embodiment of the disclosure, the first request message is sent by the second node in response to receiving a first message from the first node, the first message including information about a state in which the first node is located;

According to an embodiment of the present disclosure, a second message is transmitted to a first node by a second node, the second message including therein first configuration information related to transmission and/or reception of signals at the first node; wherein the sending and/or receiving of the signal is performed by the first node based on the first configuration information.

According to an embodiment of the present disclosure, a third message is transmitted to the first node by the second node, the third message including therein second configuration information related to transmission and/or reception of signals at the first node; wherein the sending and/or receiving of the signal is performed by the first node based on the first configuration information and the second configuration information.

According to another aspect of the present disclosure, there is provided a network node in a communication system, comprising: a transceiver configured to transmit and receive signals; and a controller coupled with the transceiver and configured to perform operations in the method as described in various embodiments of the present disclosure.

By the method and apparatus according to the present disclosure, communication continuity may be maintained during the handoff.

Drawings

FIG. 1 is a system architecture diagram of System Architecture Evolution (SAE);

FIG. 2 is a schematic diagram of an initial overall architecture of FIG. 5G;

FIG. 3 is a first flow Cheng Shili according to an embodiment of the present invention;

Fig. 4 is an example of a signal transceiving time range according to an embodiment of the present invention;

fig. 5 is an example of a transceiving time period setting according to an embodiment of the present invention;

FIG. 6 is a second flow Cheng Shili according to an embodiment of the present invention;

FIG. 7 is a third flow Cheng Shili according to an embodiment of the present invention;

FIG. 8 is a fourth flow example according to an embodiment of the invention;

FIG. 9 is a fifth flow example according to an embodiment of the present invention

Fig. 10 is a block diagram of a network node according to an embodiment of the invention.

Detailed Description

The following description with reference to the accompanying drawings is provided to facilitate a thorough understanding of the various embodiments of the present disclosure as defined by the claims and their equivalents. The description includes various specific details to facilitate understanding but should be considered exemplary only. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

The terms and phrases used in the following specification and claims are not limited to their dictionary meanings, but are used only by the inventors to enable a clear and consistent understanding of the disclosure. Accordingly, it should be apparent to those skilled in the art that the following descriptions of the various embodiments of the present disclosure are provided for illustration only and not for the purpose of limiting the disclosure as defined by the appended claims and their equivalents.

It should be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component surface" includes reference to one or more such surfaces.

The terms "comprises" or "comprising" may refer to the presence of a corresponding disclosed function, operation or component that may be used in various embodiments of the present disclosure, rather than to the presence of one or more additional functions, operations or features. Furthermore, the terms "comprises" or "comprising" may be interpreted as referring to certain features, numbers, steps, operations, constituent elements, components, or combinations thereof, but should not be interpreted as excluding the existence of one or more other features, numbers, steps, operations, constituent elements, components, or combinations thereof.

The term "or" as used in the various embodiments of the present disclosure includes any listed term and all combinations thereof. For example, "a or B" may include a, may include B, or may include both a and B.

Unless defined differently, all terms (including technical or scientific terms) used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains. The general terms as defined in the dictionary are to be construed to have meanings consistent with the context in the relevant technical field, and should not be interpreted in an idealized or overly formal manner unless expressly so defined in the present disclosure.

Figures 1 through 10, discussed below, and the various embodiments used to describe the principles of the present disclosure in this patent document are by way of illustration only and should not be construed in any way to limit the scope of the disclosure. Those skilled in the art will appreciate that the principles of the present disclosure may be implemented in any suitably arranged system or device.

Fig. 1 is an exemplary system architecture 100 for System Architecture Evolution (SAE). A User Equipment (UE) 101 is a terminal device for receiving data. An evolved universal terrestrial radio access network (E-UTRAN) 102 is a radio access network including macro base stations (enodebs/nodebs) providing an access radio network interface for UEs. The Mobility Management Entity (MME) 103 is responsible for managing the UE's mobility context, session context and security information. Serving Gateway (SGW) 104 mainly provides the functions of the user plane, and MME 103 and SGW 104 may be in the same physical entity. The packet data network gateway (PGW) 105 is responsible for charging, lawful interception, etc. functions, and may also be in the same physical entity as the SGW 104. A Policy and Charging Rules Function (PCRF) 106 provides quality of service (QoS) policies and charging criteria. The general packet radio service support node (SGSN) 108 is a network node device in the Universal Mobile Telecommunications System (UMTS) that provides a route for the transmission of data. A Home Subscriber Server (HSS) 109 is a home subsystem of the UE and is responsible for protecting user information including the current location of the user equipment, the address of the service node, user security information, packet data context of the user equipment, etc.

Fig. 2 is an exemplary system architecture 200 according to various embodiments of the present disclosure. Other embodiments of the system architecture 200 can be used without departing from the scope of this disclosure.

A User Equipment (UE) 201 is a terminal device for receiving data. The next generation radio access network (NG-RAN) 202 is a radio access network including base stations (gnbs or enbs connected to a 5G core network 5GC, also called NG-gnbs) providing access radio network interfaces for UEs. An access control and mobility management function (AMF) 203 is responsible for managing the mobility context of the UE, and security information. The User Plane Function (UPF) 204 mainly provides the functions of the user plane. The session management function entity SMF205 is responsible for session management. The Data Network (DN) 206 contains services such as operators, access to the internet, and third party traffic, among others.

Exemplary embodiments of the present disclosure are further described below with reference to the accompanying drawings.

The text and drawings are provided as examples only to aid in the understanding of the present disclosure. They should not be construed as limiting the scope of the disclosure in any way. While certain embodiments and examples have been provided, it will be apparent to those of ordinary skill in the art from this disclosure that variations can be made to the embodiments and examples shown without departing from the scope of the disclosure.

Before introducing the specific content, some assumptions and some definitions of the invention are given below.

N the message names in this invention are only examples, other message names may be used.

N the "first", "second", etc. included in the message names of the present invention are merely examples of messages and do not represent an execution order.

In the present invention, a detailed description of steps irrelevant to the present invention is omitted.

In the present invention, the steps in each flow may be performed in combination with each other or may be performed separately. The execution steps of the flows are examples only and do not exclude other possible execution orders.

In the present invention, the base station may be a 6G base station, a 5G base station (e.g., a gNB, ng-eNB), a 4G base station (e.g., an eNB), or other types of access nodes.

In the invention, the signal receiving can be the analysis of the information in the signal or the measurement of the signal; the signal may be transmitted for measurement by the receiving end or for the receiving end to parse out the information contained in the signal.

The node related to the invention comprises:

n first nodes: the user terminal equipment can be a mobile phone or a relay node; n second nodes: a first base station or a first access point, the node may be a source node of the first node in the moving process;

n third nodes: the second base station or the second access point may be a target node of the first node during the movement.

The second node and the third node may be of one of the following types (without excluding other types that may be used for user terminal access):

n long term evolution LTE base station

N5G base station

N6G base station

Non-terrestrial network (Non-TERRESTRIAL NETWORKS, NTN) base station

N high altitude platform station (High Altitude Platform Station, HAPS) base station n unmanned aerial vehicle (Drone) base station

NWIFI access point

During the moving process of the user equipment, the access node will change, so that the switching process needs to be executed to complete the change of the access equipment serving the user equipment. In this process, the user equipment may interrupt the ongoing data transmission, resulting in interruption of the user service, affecting the user experience. With the development of mobile communication technology, a network serving a user may include a plurality of different access node types (for example, the access node may be an LTE base station, a 5G base station, a 6G base station, a non-terrestrial communication base station (for example, a satellite base station, an unmanned aerial vehicle base station, a fire balloon base station, an aircraft base station), and an access point of a wireless local area network), where the characteristics of the nodes have large differences, such as different operating frequencies, different moving speeds, and different coverage areas. If the ue moves in such a network, it will switch between different access nodes, which in turn causes a more serious interruption of the communication during the switching. Because, one of the challenges to be addressed is how to allow users to maintain continuity of communication during movement between the various access nodes, and to achieve a short (e.g., 0 ms) handoff delay.

Embodiment scheme:

In order to achieve fast cell access during handover (or during cell change), the first node needs to perform fast measurement and synchronization (including downlink synchronization and uplink synchronization) on the target cell. These measurements and synchronization are accomplished by the first node receiving and/or transmitting signals within the target cell. In order to accelerate the cell handover procedure, the first node needs to make measurements or synchronization of signals to the target cell in advance. The invention aims to configure the first node to receive and/or transmit signals, so that the process of accessing the first node to the target cell can be accelerated, and the interruption of communication is reduced.

In the invention, the first node receives and/or transmits signals for accessing the cell. In the following description, a "signal" may include one or more of the following signal types: n measures a signal, which may comprise at least one of the following signals:

● Downlink reference signals (DL REFERENCE SIGNAL), such as Cell reference signals (Cell RS), tracking reference signals (TRACKING RS), channel state information reference signals (Channel stateinformation RS);

● A downlink synchronization signal (DL synchronization signal), a synchronization signal block (SSB:

synchronization signal block), a reference signal (REFERENCE SIGNAL), such as a tracking reference signal (TRACKING REFERENCE SIGNAL), a reference signal for channel state information (CSI-RS:

CHANNEL STATE information REFERENCE SIGNAL) (the CSI-RS may have different uses, such as tracking, beam management, mobility, etc.), a newly defined downlink is used for a signal for synchronization (e.g., a fast downlink synchronization signal). The above signal may be used to perform the first synchronization (coarse synchronization) or the second synchronization (fine synchronization);

● Uplink synchronization signals, such as Random access signals (Random ACCESS SIGNAL), sounding reference signals (Sounding REFERENCE SIGNAL), newly defined signals for uplink synchronization (e.g., fast uplink synchronization signals).

The present invention provides a process for configuring a first node, as shown in fig. 3, which includes the following steps:

Step 1-1: the second node sends a first configuration message to the first node, the effect of which may include at least one of: 1) providing at least one candidate target node (e.g. third node) or target cell, 2) providing configuration information for accessing the target node (e.g. third node) or target cell, 3) providing configuration information for measuring or monitoring the target node and/or target cell and/or target frequency point, 4) providing configuration information for signal reception and/or transmission at the target cell. After receiving the message, the first node monitors or measures the signal of the target node according to the configuration information in the message, synchronizes with the cell served by the target node, or accesses the cell served by the target node. In one embodiment, the message may provide configuration information for a plurality of target nodes (the nodes may be candidate nodes), in another embodiment, the message may provide configuration information for accessing a plurality of cells (the cells may be candidate cells), and in another embodiment, the message may provide configuration information for a plurality of frequency points (the frequency points may be candidate frequency points). The message has the beneficial effects that the second node can configure signal receiving and/or sending under different conditions for the first node, so that the first node can conveniently and quickly access the neighbor cell, and time interruption in the cell switching process is reduced. For a node or a cell or a frequency point, the configuration information contained in the message includes at least one of the following information: n first configuration identification information identifying a configuration required for signal reception and/or transmission by the first node (the signal reception and/or transmission may have different uses, such as signal monitoring, signal measurement, downlink synchronization, uplink synchronization, network access, etc.), the indicated configuration may be one or more of the configuration information contained in the above-mentioned "first configuration message";

n first target indication information indicating information of a target to which a signal received and/or transmitted by the first node belongs. The information may be generated by the second node. In one embodiment, the information is obtained by the second node from information (e.g., measurement information) provided by the first node, and in another embodiment, the information is obtained by the second node from other nodes (e.g., a third node). The information comprises at least one of the following information:

● And the first identification information of the node indicates that the node is the node where the signal received and/or transmitted by the first node is located. In one embodiment, the node indicated by the information is a node to which the first node may access;

● And the first cell identification information indicates the cell in which the signal received and/or transmitted by the first node is located. In one embodiment, the information identifies a cell that does not serve the first node, and in one embodiment, the cell identified by the information may be a cell (candidate target cell) to which the first node is to access, and further, the cell identified by the information may be a cell in which the first node receives and/or transmits signals;

● Cell type indication information, which indicates the type of the cell indicated by the "first cell identification information" above, may be a cell (e.g., inter-DU cell) in a different DU from the current serving cell of the first node, or may be a cell (e.g., intra-DU cell) in the same DU as the current serving cell of the first node. After receiving the information, the first node can determine the transceiving of the signal according to the type of the cell, in one example, after the first node sends a random access preamble signal to the cell indicated by the "first cell identification information", if the cell is an inter-DU cell, the first node does not need to wait for synchronization information (such as RACH Response information, timing advance information, etc.), if the cell is an Intra-DU cell, the first node can wait for synchronization information (such as RACH Response information, timing advance information, etc.); in another example, after the first node sends the random access preamble signal to the cell indicated by the "first cell identification information", if the cell is an intra-DU cell, the first node does not need to wait for synchronization information (such as RACH Response information, timing advance information, etc.), if the cell is an Inter-DU cell, the first node may wait for synchronization information (such as RACHResponse information, timing advance information, etc.);

● The indication information of the first frequency point indicates the frequency point where the signal received and/or transmitted by the first node is located. In one embodiment, the information indicates information of a frequency point where a serving cell (candidate target cell) of the node to which the first node may access is located, where the "serving cell (candidate target cell) of the node to which the first node may access" may be a cell to which the first node will access, and further, the frequency point identified by the information may be a frequency point where the first node performs signal receiving and/or transmitting. The information may include at least one of the following:

position indication information of a center frequency point and indication information of a frequency range;

the configuration information in the first configuration message may be respectively given for different nodes, may be respectively given for different frequency points, or may be respectively given for different cells.

Configuration information of the n first signals, which information indicates the configuration information of the signals that the first node needs to receive and/or transmit. Further, the signal indicated by the information may be a signal in the cell indicated by the "first cell identification information" described above, or the signal indicated by the information may be a signal in the cell on the frequency point indicated by the "indication information of the first frequency point" described above. The information has the beneficial effects that the first node can receive and/or transmit the corresponding first signal according to the configuration, and the time for the first node to receive and/or transmit the signal is reduced. In one embodiment, the first signal may be a signal measured or monitored by the first node, in another embodiment, the first signal is a signal downlink synchronized by the first node, in another embodiment, the first signal is a signal uplink synchronized by the first node, in one embodiment, the first signal may be at least one or more of a measurement signal, a downlink synchronization signal, and an uplink synchronization signal. The "configuration information of the first signal" may comprise configuration information of one or more signals. For a signal, the information comprises at least one of the following information:

● First signal configuration identification information identifying a set of configurations of signals received and/or transmitted by the first node;

● Indication information of a first signal type, the information indicating a received and/or transmitted signal of a first node

The type of number, the signal type indicated by this information may be found in the description above regarding "signals"; ● First resource information indicating resources used for receiving and/or transmitting signals. In one embodiment, if the signal of the random access of the transmitted signal, the information may be indication information, such as RACH Occasion Index, PRACH MASK Index, for indicating the timing of transmitting the signal of the random access. The information comprises at least one of the following information:

u first frequency domain resource information indicating a position of a frequency domain where the signal is located, the position may be indicated by a frequency point and a bandwidth in one embodiment, the position may be indicated by an identification of a frequency domain resource, such as an identification of a range of the frequency domain resource in another embodiment, the position may be indicated by an identification of a frequency band, such as an identification of a bandwidth portion BWP (bandwidth part), an identification of a sub-band, and the position may be determined by a position (such as a frequency domain offset) with respect to other signals, such as when the "first frequency domain resource information" is used to indicate a position of an uplink synchronization signal, the "first frequency domain resource information" may be used to indicate a position with respect to a downlink synchronization signal, such as when the "first frequency domain resource information" is used to indicate a position of a downlink synchronization signal, the "first frequency domain resource information" may be used to indicate a position with respect to a measurement signal or a position with respect to an uplink synchronization signal in another embodiment;

u first time domain resource information indicating a location of a time domain in which the signal is located, the information may include at least one of the following information in order to indicate the location:

A period of time;

offset of (1);

A number of time units (e.g., a number of slots, a number of symbols);

A length of time;

The information indicating a time at which the first signal starts to be transmitted or a time at which the reception of the first signal starts;

The signal relative position information may be used to indicate a position (e.g., frequency domain offset) relative to other signals, such as when the signal relative position information is used to indicate a position of an uplink synchronization signal, the signal relative position information may be used to indicate a position relative to a downlink synchronization signal, such as when the signal relative position information "

Is used for indicating the position of the downlink synchronous signal, the signal relative position information "

May be used to indicate a position relative to the measurement signal or a position relative to the uplink synchronization signal;

● First cell timing information, which may indicate an offset of timing between different cells (e.g., an offset of a system frame number), which may be +.first beam configuration information with respect to a current serving cell of the user equipment, which indicates a beam required for signal reception and/or transmission, which may include at least one of the following information: TCI (Transmissionconfiguration indicator) status indication information, identification information of a beam, precoding information of a received beam, precoding information of a transmitted beam, indication information of an associated SSB, and the like; ● First sequence information indicating a sequence included in a signal received and/or transmitted by the first node; in one embodiment, if the first node sends a random access signal (such as a preamble of random access), the information may indicate a sequence of the sent signal, such as a preamble Index;

● The first timing advance information indicates the timing advance needed when the first node sends the signal, and the first node can be helped to complete uplink synchronization quickly. In one embodiment, the information is generated by the second node, and in another embodiment, the information is obtained by the second node from other nodes;

● First valid time information indicating a valid time of the configuration information included in the "configuration information of the first signal", and if the valid time is exceeded, the configuration information is not valid any more, and the first node cannot use the configuration information for signal reception and/or transmission;

And n configuration information of the first signal transceiver, wherein the configuration information indicates configuration information required by the first node for signal receiving and/or transmitting. The information has the advantages that the first node can receive and/or transmit signals according to the information, so that unnecessary signal discovery processes are avoided, or interference caused by the fact that the first node transmits signals is avoided. In one embodiment, the information may be respectively given for different targets (such as nodes, cells, frequency points) indicated by the "first target indication information" above; in another embodiment, the information may be uniform configuration information given for different targets (e.g. nodes, cells, frequency points) indicated by the "first target indication information" above. The information comprises at least one of the following information:

● Identification information of the first signal transceiving configuration, the information identifying a set of configurations required for signal reception and/or transmission by the first node;

● And indication information of the first transceiving time, wherein the indication information indicates a time range of signal transceiving of the first node. This information may be named as measurement gap (measurement gap), access gap (ACCESSING GAP), transmission/reception period (transmission/reception period), etc. Further, this information may vary depending on the type of signal the first node needs to receive and/or transmit, or depending on the conditions that the first node satisfies. The information includes at least one of the following:

u period;

u offset;

u time cell number (e.g. slot number, symbol number);

u time length (the time length indicates the time length for the first node to receive and/or transmit signals, and in one embodiment, the time length may be expressed in a unit of time, such as milliseconds, microseconds, seconds, etc., and in another embodiment, the time length may be expressed in terms of the number of symbols);

u start time (this information indicates the time when the first node starts signal reception and/or transmission); ● And the first node receives the information and then receives and/or transmits signals according to the indication of the information. The information may be indicative of at least one of the following: 1) signal measurement, 2) downlink synchronization, 3) downlink first synchronization (only monitoring or receiving signals for downlink first synchronization, such as synchronization signal block SSB, primary synchronization signal (PSS, primary Synchronization Signal), secondary synchronization signal (SSS, secondary Synchronization Signal), etc.), 4) downlink second synchronization (monitoring or receiving signals for downlink second synchronization, such as cell reference signal CRS, tracking reference signal TRS, etc.), 5) uplink synchronization (such as sending uplink preamble signal, and obtaining timing advance (TIMING ADVANCE)), 6) obtaining timing advance (which occurs after the first node has sent uplink synchronization signal, such as after sending random access preamble signal), 7) uplink downlink synchronization, 8) save/retain (downlink or uplink or downlink) synchronization information (or Quasi Co-Location of reference signal, QCL attribute information) of the cell. Further, the information may indicate the behavior in the time range indicated by the "indication information of the first transceiving time" described above. The information has the advantages that the first node can determine the signal which needs to be received and/or transmitted according to the information, so that the first node is prevented from receiving and transmitting unnecessary signals, and the time required by receiving and transmitting the signals is reduced;

● The indication information of the first signal, which indicates the type of signal received and/or transmitted by the first node, may be referred to as "signal" in the description above. Further, the information may indicate a received and/or transmitted signal within the time range indicated by the above-described "first transceiving time information". The information has the advantages that the first node can determine the signal which needs to be received and/or transmitted according to the information, so that the first node is prevented from carrying out unnecessary signal transceiving, and the time required by signal transceiving is reduced;

● First condition indicating information indicating condition information of signal reception and/or transmission by the first node, the information indicating that the first node receives and/or transmits the above-mentioned "first configuration message"

Conditions that need to be met by the signal indicated by the other information contained in (a). The information has the advantages that the first node can receive and/or transmit signals according to the information, so that unnecessary signal discovery processes are avoided, or interference caused by the fact that the first node transmits signals is avoided. The information comprises at least one of the following information:

u first condition identification information identifying one of conditions under which the first node performs signal reception and/or transmission (at least one of the following conditions one to six);

u a first threshold, the information indicating a condition (condition one) for signal reception and/or transmission by the first node, i.e. a measurement result of the signal of the serving cell exceeding the first threshold, the measurement result may be a reference signal received power RSRP (Reference Signal) of layer 3

Received Power), layer 3 reference signal received quality RSRQ (Reference Signal)

Received Quality), layer 3 sir SINR (Signal to Interferenceplus Noise Ratio), layer 1 RSRP, layer 1 RSRQ, layer 1 SINR, channel Quality indicator CQI (Channel Quality Indicator);

u a second threshold, where the information indicates a condition (condition two) for the first node to perform signal reception and/or transmission, that is, a measurement result of a signal of a serving cell (the cell is a cell serving the first node, or a primary cell serving the first node, or a special primary cell serving the first node) is smaller than that of other cells (the cell may be a cell in which a signal indicated by the "configuration information of the first signal" described above, the cell may be different from the serving cell described above), where the measurement result of a signal of a layer 3 RSRP, a layer 3 RSRQ, a layer 3 SINR, a layer 1 RSRP, a layer 1 RSRQ, a layer 1 SINR, a CQI is smaller than the second threshold;

u third threshold and/or fourth threshold, which information indicates signal reception by the first node and +.

Or the condition of transmission (condition three), i.e. the measurement result of the signal of the serving cell (which is the cell serving the first node, or the primary cell serving the first node, or the special primary cell serving the first node) is smaller than the third threshold, and/or the other cells (which may be the cells where the signal indicated by the above-mentioned "configuration information of the first signal",

The cell may be different from the serving cell) is greater than a fourth threshold; and u first status indication information, which indicates a condition (condition four) that the first node performs signal reception and/or transmission, that is, a status in which the first node is in a state that the first node needs to be in when it starts to receive and/or transmit signals indicated by other information included in the above "first configuration message", in one embodiment. The information may indicate at least one of the following states:

In one embodiment, the status indicates that the first node does not find a configured cell/node/frequency;

discovering a cell/node/frequency point;

is not downlink synchronized, the status indicating that the first node has not yet obtained downlink synchronization;

In one embodiment, the status indicates that the first node received a downlink first synchronization signal (e.g., SSB, PSS/SSS) and completed a downlink coarse synchronization;

In one embodiment, the status indicates that the first node received a downlink second synchronization signal (e.g., cell reference signal CELL REFERENCE SIGNAL, tracking reference signal TRACKING RS), and in another embodiment, the status indicates that the first node received a downlink first synchronization signal and a downlink second synchronization signal;

if the base station receives the random access signal, the base station generates configuration (such as timing advance information) for helping the first node to perform uplink synchronization. In one embodiment, the state indicates that the first node transmitted a random access Preamble (Preamble), in another embodiment, the state indicates that the first node transmitted an SRS signal, and in another embodiment, the state indicates that the first node transmitted a newly defined signal for user uplink synchronization;

in one embodiment, the status indicates that the first node has completed uplink synchronization with other cells, different from the cell serving the first node (or the primary cell, or the special primary cell (SPECIAL PRIMARY CELL));

In one embodiment, the status indicates that the first node has completed uplink and downlink synchronization with other cells, different from the cell serving the first node (or the primary cell, or the special primary cell (SPECIAL PRIMARY CELL));

u first duration length information indicating signal reception by the first node and +.

Or a condition (condition five) of transmission, that is, a time period required for the first node to satisfy at least one of the conditions one to four, in order to indicate the condition, the "first condition indication information" may include first duration length information;

u first count information indicating a condition (condition six) for signal reception and/or transmission by the first node, i.e., the number of times the first node needs to reach to satisfy at least one of the above-mentioned conditions one to four; and fifth threshold information indicating a threshold for the first node to reserve/store (downlink or uplink or downlink) synchronization information (or QuasiCo-Location of reference signal, QCL attribute information) of the cell. In one example, the threshold may be a threshold of measurement results of a cell, such as when the measurement results of a cell are greater than the threshold, the first node may retain/save (downlink or uplink or downlink) synchronization information (or Quasi Co-Location of a reference signal) of the cell after downlink synchronization with the cell, in another example, the threshold may be a threshold of the number of cells, such as a threshold of the number of cells (e.g., the threshold may be determined based on user capability) where (downlink or uplink or downlink) synchronization information (or Quasi Co-Location of a reference signal) is retained/saved at the first node, the QCL attribute information) is less than the threshold, the first node may retain more (downlink or uplink or downlink) synchronization information (or QuasiCo-Location of the reference signal, QCL attribute information) of the cells, and in another example, the threshold includes multiple thresholds, such as a threshold including a cell measurement result and a threshold of the number of cells, such as when the measurement result of the cell is greater than the threshold, and the number of cells retaining (downlink or uplink or downlink) synchronization information (or Quasi Co-Location of the reference signal, QCL attribute information) at the first node meets the capability requirement of the first node (such as a threshold not exceeding the number of cells), the first node may keep (downlink or uplink or downlink) synchronization information (or QuasiCo-Location of the reference signal, QCL attribute information) of the cell after synchronizing with the cell (downlink or uplink or downlink). The measurement results may be RSRP of layer 3, RSRQ of layer 3, SINR of layer 3, RSRP of layer 1, RSRQ of layer 1, SINR of layer 1, CQI; the cell to which the measurement result is directed, or the cell to which reserved (downlink or uplink) synchronization information (or Quasi Co-Location of reference signal, QCL attribute information) is directed may be the cell indicated by the "first target indication information";

Further, the "indication information of the first transmission/reception time", "indication information of the first behavior", "indication information of the first signal" and "first condition indication information" are related to each other, and the setting in one information is determined by the setting in another information or information. The configuration of the "indication information of the first transmission/reception time" is determined by at least one of the "indication information of the first behavior", "indication information of the first signal" and "indication information of the first condition" described above.

N first access configuration information, which is a configuration used by the first node when accessing the target cell, which may include a configuration for performing random access (e.g., a resource configuration for non-contention based random access, a resource configuration for contention based random access). For details, see the configuration in RRCReconfiguration.

After the first node receives the first configuration message, in one embodiment, the first node starts receiving and/or transmitting a signal according to the configuration information in the message, in another embodiment, the first node stores the configuration information in the message, when the receiving and/or transmitting of the signal needs to be met, and then the receiving and/or transmitting of the signal can be started, in another embodiment, the first node stores the configuration information in the message, and when the receiving and/or transmitting of the signal needs to be received, and further indication information of the second node needs to be received.

After receiving the first configuration message, the first node may receive and/or send a signal according to the configuration information. The first node has different behavior depending on the configuration. Several possible embodiments are given below.

N transmitting/receiving signals or accessing target cells in a time period indicated by the first transmitting/receiving time indication information

The period of time indicated by the "indication of the first transceiving time" may be discontinuous, and during a period of time outside of this period of time, the first node may continue to maintain data communication with the second node, as shown in fig. 4. The period length may be different depending on the "indication of the first behavior" and/or the "indication of the first signal" and/or the "first condition indication". During this time period, the first node may be based on being configured with different behaviors. When the "indication information of the first behavior" indicates that the first node performs uplink synchronization or downlink synchronization or cell access, the first node may perform cell access or signal reception and/or transmission based on the configuration in the "configuration information of the first signal" and/or the configuration in the "first access configuration information". In one embodiment, the second node configures a measurement gap (measurement gap) for the first node, which indicates that the first node performs uplink synchronization or downlink synchronization or cell access, and then the first node accesses the target cell according to the configuration in the "configuration information of the first signal" and/or the configuration of random access in the "first access configuration information". Further, if downlink synchronization (e.g., a fast downlink synchronization signal) and uplink synchronization (e.g., a fast uplink synchronization signal) are configured, the first node performs downlink synchronization and then uplink synchronization, or performs uplink synchronization and then downlink synchronization according to the configuration. Still further, if the first node fails to complete synchronization within a time period, the first node may complete in a plurality of time periods (the plurality of time periods are also given by the configuration in the "configuration information of the first signal" and/or the "first access configuration information" described above), and there may be an interval between every two time periods of the plurality of time periods, during which the first node may perform data communication with the second node).

N determining whether to receive and/or transmit signals according to the configuration of the first condition indication information

When the condition indicated by the "first condition indication information" is satisfied, the first node performs cell access, or signal receiving and/or transmitting, or reserves (downlink or uplink and downlink) synchronization information (or Quasi Co-Location, QCL attribute information of the reference signal) of the cell according to the configuration in the "configuration information of the first signal" and/or the configuration in the "configuration information of the first signal transceiver"; in step 1-1, different conditions (conditions indicated by the "first condition indication information") also correspond to different "first signal arrangement information" and/or "first signal transmission/reception arrangement information". In addition, the "first condition indication information" is associated with the configuration in the "configuration information of the first signal" and/or the configuration in the "configuration information of the first signal transmission/reception", and even if the conditions met by the first node are different for receiving and/or transmitting the same signal, the first node may use different "configuration information of the first signal" and/or different "configuration information of the first signal transmission/reception", for example, the state of the first node is different, the time taken for the first node to transmit and receive the signal may be different, for example, the state of the first node is different, and the signal received and/or transmitted by the first node is also different.

In one embodiment, the first configuration message is a control plane message, such as an RRC message (RRC reconfiguration RRC Reconfiguration message), in another embodiment, the first configuration message is a second protocol layer message, such as an L2 layer message (e.g., a control element of a MAC layer), and in another embodiment, the first configuration message is a first protocol layer message, such as an L1 layer message (e.g., a physical layer message, downlink control information, etc.).

Optionally, after step 1-1, the second node may send to the first node the configuration it needs for reception and/or transmission of signals, the configuration of the indication being preconfigured by step 1-1, namely:

step 1-2: the second node transmits a first indication message (or a second configuration message) to the first node, where the message is used to instruct the first node to perform signal receiving and/or transmitting, and the configuration of the received and/or transmitted signal may be that the second node is preconfigured to the first node, where the configuration is configured to the first node in step 1-1, and in addition, the first indication message may be used to instruct the first node to perform cell switching or (cell transformation). The message has the advantage that the first node can quickly start and complete the reception and/or transmission of the signal and reduce and presently interrupt the cell serving the first node. The message includes at least one of the following information:

n second configuration identification information indicating a configuration required for the first node to perform reception and/or transmission of a signal, which configuration may be pre-configured to the first node, as configured to the first node through step 1-1 described above. In one embodiment, the configuration identified by the identification information is the configuration represented by "first configuration identification information" in step 1-1;

n second configuration indication information indicating an identification of a configuration required for the first node to perform reception and/or transmission of a signal, which may be index information of the identification of the configuration. The configuration represented by the identity may be pre-configured to the first node, as is the case with the configuration of the first node in step 1-1 described above. In one embodiment, the configuration indicated by the indication information is "first configuration identification information" in the above step 1-1;

Second identification information of the n nodes, wherein the second identification information indicates nodes to which signals received and/or transmitted by the first node belong;

The second identification of the n nodes indicates information indicating an identification of a node to which the signal received and/or transmitted by the first node belongs, and the indication information may be index information of the identification of the node. The node identification may be preconfigured to the first node, such as "first identification information of node" in step 1-1;

n second cell identification information, where the information indicates a cell to which a signal received and/or transmitted by the first node belongs, and further the information may also indicate a cell to which the first node needs to access;

n second cell identity indication information, which indicates an identity of a cell to which a signal received and/or transmitted by the first node belongs, may be index information of the identity of the cell. The cell identifier may be preconfigured to the first node, e.g. the "first cell identifier information" in step 1-1 above, and further, the information may further indicate a cell to which the first node needs to access;

n indicating information of the second frequency point, where the information indicates a frequency point to which a signal received and/or transmitted by the first node belongs, and the frequency point may be preconfigured to the first node, for example, the "indicating information of the first frequency point" in the step 1-1;

n second signal configuration identification information indicating the configuration of the signal that the first node needs to receive and/or transmit, which configuration may be pre-configured to the first node, as configured to the first node by step 1-1 described above. In one embodiment, the configuration identified by the identification information is the configuration represented by "first signal configuration identification information" in step 1-1;

n second signal configuration indication information indicating an identification of a configuration of a signal that the first node needs to receive and/or transmit, which indication information may be index information of the identification of the configuration. The identification of the configuration may be sent to the first node in advance, as is done by step 1-1 described above.

In one embodiment, the configuration indicated by the indication information is "first signal configuration identification information" in the above step 1-1; in one embodiment, if the transmitted signal is a random access signal, the information may be indication information, such as RACHOccasion Index, PRACH MASK Index, used to indicate the timing of transmitting the random access signal, and in another embodiment, the indication information may indicate a set of multiple different configurations, such as when the signal transmitted by the first node is a random access signal, the indication information may indicate the timing of transmitting the random access signal (such as RACH Occasion Index, PRACH MASK Index), a sequence of the random access signal (such as preamble Index), and an associated beam (such as SSB Index);

n identification information of the second signaling configuration, which indicates the configuration required by the first node for signal reception and/or transmission, which configuration may be preconfigured to the first node, e.g. by the above step 1-1. In one embodiment, the configuration identified by the identification information is the configuration represented by "identification information of the configuration of the first signaling" in step 1-1;

n second signaling configuration indication information, which indicates an identification of the configuration required for the first node to perform signal reception and/or transmission, and the indication information may be index information of the identification of the configuration. The identification of the configuration may be sent to the first node in advance, as is done by step 1-1 described above. In one embodiment, the configuration indicated by the indication information is the configuration represented by "the identification information of the first signaling configuration" in the above step 1-1;

n second condition identification information indicating a configuration required for the condition for signal reception and/or transmission by the first node, which may be preconfigured to the first node, as configured to the first node by the above step 1-1. In one embodiment, the configuration required for the condition identified by the identification information is the configuration required for the condition represented by the "first condition identification information" in step 1-1;

n second condition identification indicating information indicating an identification of a configuration required for the condition of signal reception and/or transmission by the first node, the indicating information may be index information of the identification of the configuration. The configuration indicated by the identity may be sent to the first node in advance, as is done by step 1-1 described above. In one embodiment, the indication information indicates the identity of step 1-1

"First condition identification information";

n second beam indication information indicating a beam required for the first node to receive and/or transmit signals, such as TCI (Transmission configuration indicator ), beam identification, associated SSB indication information (SSB Index), etc.;

n second sequence information indicating a sequence included in the signal received and/or transmitted by the first node; in one embodiment, if the first node sends a random access signal (such as a preamble of random access), the information may indicate a sequence of the sent signal, such as a preamble Index;

n second timing advance information indicating a timing advance required for transmitting an uplink signal, which can help the first node to acquire uplink synchronization;

n-synchronization acquisition indication information, which indicates whether the first node needs to acquire synchronization information, such as uplink synchronization information, and in one embodiment, whether the first node needs to receive feedback information (such as RACH Response information, timing advance information, etc.) on the network side after transmitting the uplink random access preamble, where the indication information may be implicitly indicated by a type of a candidate cell (such as a type indicated by "cell type indication information" in the first configuration message in step 1-1), such as when the first node transmits the random access preamble to the cell indicated by the "second cell identification information", if it is an inter-DU cell, the first node does not need to wait for synchronization information (such as RACH Response information, timing advance information, etc.) and if it is an Intra-RACH cell, the first node may wait for synchronization information (such as Response information, timing advance information, etc.); in another example, after the first node sends the random access preamble signal to the cell indicated by the "second cell identification information", if the cell is an intra-DU cell, the first node does not need to wait for synchronization information (such as RACH Response information, timing advance information, etc.), if the cell is an Inter-DU cell, the first node may wait for synchronization information (such as RACHResponse information, timing advance information, etc.);

When the first node receives the second configuration message (or the first indication message), it receives and/or transmits signals according to the information contained in the message. If the configuration information of the signal reception and/or transmission has been preconfigured to the first node (e.g. configured to the first node by step 1-1), the first node obtains the configuration information of the signal reception and/or transmission from the preconfiguration according to the information contained in the second configuration message. In another embodiment, the second configuration message (or the first indication message) may also be used to instruct the first node to switch to a neighboring cell/node/frequency band, where the indication information may be obtained by the "second identification information of the node" and/or the "second identification information of the cell" and/or the "indication information of the second frequency point". In another embodiment, the second configuration message (or the first indication message) may be used to instruct the first node to perform uplink synchronization of the neighbor cell (or the candidate cell), for example, trigger the first node to send a random access signal (such as a random access triggered by PDCCH) to the neighbor cell (or the candidate cell).

In steps 1-1 and 1-2 described above, the different states in which the first node is located may result in different configurations. Possible configurations in different states (these are examples only and do not exclude other states and combinations of configurations that may be generated by the second node or acquired by the second node through steps 1-0a and 1-0 b) are given below, as shown in fig. 5:

n state 1-no cell/node/frequency point found: in this state, the user does not find the cell/node/frequency point in the process of cell search, so the second node may be configured to receive and/or transmit signals for a longer time, as indicated by the above-mentioned "indication information of the first transceiving time", further, when the signal is configured to receive and/or transmit, the second node may configure information of downlink synchronization and uplink synchronization, which may help the first node find the cell/node/frequency point, and, optionally, may configure a time domain position of transmitting a signal (which may be an existing signal or a newly defined signal) required for uplink synchronization to be closer to a time domain position of transmitting a signal (which may be an existing signal or a newly defined signal) required for downlink synchronization of the user;

n state 2- -find cell/node/frequency point or not downlink synchronized: in this state, the user has searched the cell/node/frequency point, the second node may be configured to receive and/or transmit the signal for a longer time (but the configured time in this state may be slightly shorter than the state 1), as indicated by the "indication information of the first transceiving time", further, when the configured signal is received and/or transmitted, the second node may configure information of downlink synchronization and uplink synchronization, where the downlink synchronization and uplink synchronization may be performed within the configured time range (such as the "indication information of the first transceiving time"), and, optionally, the time domain position for transmitting the signal required for uplink synchronization (which may be an existing signal or a newly defined signal) may be configured to be closer to the time domain position for transmitting the signal required for downlink synchronization of the user (which may be an existing signal or a newly defined signal);

n state 3-first synchronization of downlink (or Quasi Co-

Location, QCL attribute information), which is acquired through SSB): when the configuration signal is received and/or transmitted, the second node configures information of downlink second synchronization and uplink synchronization, where the downlink synchronization and the uplink synchronization may be performed within a configured time range (for example, the indication information of the first transceiving time), and optionally, a time domain position of a signal (which may be an existing signal or a newly defined signal) required for uplink synchronization may be configured to be relatively close to a time domain position of a signal (which may be an existing signal or a newly defined signal) required for downlink second synchronization of the user;

n-state 4-downlink synchronization (or Quasi Co-

Location, QCL attribute information)): when the configuration signal is received and/or transmitted, the second node configures uplink synchronization information, where the uplink synchronization may be performed within a configured time range (e.g., the "indication information of the first transceiving time") such as the first node sends an uplink synchronization signal (e.g., a preamble signal of random access), and then receives a timing advance for uplink synchronization;

n state 5-transmitting uplink access signal: the second node may be configured to receive and/or transmit signals for a shorter period of time, as indicated by the "indication of the first transceiving time" described above. One example of the uplink access signal may be a random access signal, another example may be an SRS signal, and another example may be a newly defined uplink signal. Further, in the time indicated by the "indication information of the first transceiving time", the first node may be configured to acquire timing advance information (in the uplink synchronization process, the first node may first send an uplink access signal and then receive the timing advance information sent by the base station, and in the state 5, the first node has sent the uplink access signal, then the second node may configure a shorter time to enable the first node to acquire the timing advance information).

In one embodiment, the second configuration message (or the first indication message) is a control plane message, such as an RRC message (RRC reconfiguration RRC Reconfiguration message), in another embodiment, the second configuration message (or the first indication message) is a second protocol layer message, such as an L2 layer message (e.g., a control element of a MAC layer), in another embodiment, the second configuration message (or the first indication message) is a first protocol layer message, such as an L1 layer message (e.g., a physical layer message, downlink control information, etc.), and if it is downlink control information, the step 1-2 may be PDCCH triggered random access.

Alternatively, steps 1-1 and 1-2 may be triggered based on the information sent by the first node, as shown in FIG. 6, i.e.

Step 1-3: the first node sends a first report message to the second node, the message comprising information obtained by the first node for signal reception and/or transmission. The message has the beneficial effects that the second node can acquire the state of the signal received and/or transmitted by the first node, so that the configuration required by the first node to switch to other cells is determined, and the time for the first node to access other cells is reduced. The first report message contains at least one of the following information:

And third identification information of the n nodes, the information indicating the node for which the information reported by the first node is directed.

In one embodiment, the node indicated by the information is a node to which the first node may access; n third cell identification information indicating the cell for which the information reported by the first node is directed.

In one embodiment, the information identifies a cell that does not serve the first node, and in one embodiment, the cell identified by the information may be a cell (candidate target cell) to which the first node is to access, and further, the cell identified by the information may be a cell in which the first node receives and/or transmits signals;

And indicating information of the n third frequency points, wherein the information indicates the frequency points for which the information reported by the first node is aimed.

In one embodiment, the information indicates information of a frequency point where a cell (candidate target cell) to which the first node may access is located, and further the information may include at least one of the following information: position indication information of a center frequency point and indication information of a frequency range;

n first measurement result information, which information contains the measurement result of the first node on the signal, which in one embodiment is the other cell (not the current serving cell or the current primary cell or the current special primary cell of the first node), which information contains at least one of the following information:

● RSRP of layer 3;

● RSRQ of layer 3;

● SINR of layer 3;

● RSRP of layer 1;

● RSRQ of layer 1;

● SINR of layer 1;

●CQI；

● First measurement duration length information indicating a time for which a measurement result of the first node is equal to or greater than the above measurement result;

● First measurement count information indicating the number of times the measurement result of the first node is equal to or greater than the above measurement result;

n first status report information, where the first status report information indicates a status of the first node, where the status may reflect a status of the first node for receiving and/or transmitting signals, where the second node may determine that configuration of the first node is required, so as to reduce interruption in a process of accessing the first node to other cells. In one embodiment, the status is obtained by the first node performing the receiving and/or transmitting of the signal by itself, and in another embodiment, the status information is obtained by the first node performing the receiving and/or transmitting of the signal according to the configuration of steps 1-1 and/or 1-2 described above. The information may indicate at least one of the following states:

● The state identifies that the first node does not find the cell/frequency/node (e.g., cannot receive a signal on the cell/frequency/node), where the cell may be a cell indicated by the "second cell identification information", the frequency may be a frequency indicated by the "second frequency indication information", and the node may be a node indicated by the "second node identification information". In one embodiment, when the first node is in this state, the second node configures the measurement time for the first node so that the first node can discover cells/frequency points/nodes;

● And finding a cell/frequency point/node, wherein the state identifies the first node to find the cell/frequency point/node, the cell can be indicated by the second cell identification information, the frequency point can be indicated by the second frequency point indication information, and the node can be indicated by the second node identification information. In one embodiment, when the first node is at the same node

In the state, the second node configures the first node to continue measurement;

● Downlink first synchronization (or downlink synchronization information (or Quasi Co-Location, QCL attribute information of a reference signal) is reserved, e.g., information of the downlink first synchronization is reserved, which is acquired after downlink synchronization based on SSB), and the state indicates that the first node has received the downlink first synchronization signal, e.g., SSB, PSS, SSS. In one embodiment, when the first node is in the state, the second node configures the first node to continue the downstream second synchronization and +.

Or uplink synchronization;

● Downlink (second) synchronization (or downlink synchronization information (or QCL attribute information of a reference signal) is reserved, e.g., information of the downlink second synchronization is reserved, which is acquired after the downlink synchronization based on SSB and TRS), and the status indicates that the first node has completed downlink (second) synchronization, e.g., the downlink synchronization with the cell is completed through SSB and TRS. In one embodiment, the second node configures the first node when the first node is in the state

A node performs uplink synchronization;

● The uplink synchronization signal is sent, and the state indicates that the first node sends the uplink synchronization signal (such as a random access signal, an SRS signal, a newly defined uplink signal, etc.), and further, to describe a specific state of sending the uplink synchronization signal, one of the following information may be included to indicate the state: 1) the power used to transmit the signal, 2) the sequence used to transmit the signal, 3) the number of times the signal is transmitted, 4) the beam used to transmit the signal, 5) the time since the last transmission of the uplink synchronization signal. In one embodiment, when the first node is in the state, the second node configures an advance required by the first node to access the cell so as to complete uplink synchronization;

● Uplink synchronization, which indicates that the first node has achieved uplink synchronization, in one embodiment, with other cells (which are not the serving cell or the primary cell or the special primary cell of the first node, but may be cells to which the first node may access). In one embodiment, when the first node is in this state, the second node may consider that the first node is already able to access other cells, and the second node may switch the first node to a node serving the other cells;

● The state duration, the information indicating the duration of time the first node is in at least one of the states. In one embodiment, based on the time information, the second node may configure the time for the first node to receive and/or transmit signals, and the second node may configure the time period to be different when the first node is in different states, e.g., according to "undiscovered cell/frequency point

A/node "," find cell/frequency point/node "," first synchronization downstream "," second synchronization downstream ",

The sequence of the uplink synchronization signal transmission and the uplink synchronization is that the time length of configuration is sequentially reduced.

In one embodiment, the first report message is a control plane message, such as an RRC message (RRC measurement report RRC Measurement report message), in another embodiment, the first report message is a second protocol layer message, such as an L2 layer message (e.g., a control element of a MAC layer), and in another embodiment, the first report message is a first protocol layer message, such as an L1 layer message (e.g., a physical layer message, uplink control information, etc.).

Steps 1-1 and 1-2 above are mainly for configuring the first node to receive and/or transmit a signal, which in one embodiment may belong to a serving cell (e.g. a primary cell, or a primary secondary cell, or a secondary cell) of the first node, and in another embodiment may belong to other cells, e.g. cells different from the serving cell of the first node. To achieve this, the second node may need to obtain the configuration of the signal from the other node, since the signal is of a cell served by the other node. Thus, optionally, before step 1-1, the following steps may be further included, as shown in fig. 7:

step 1-0a: the second node sends a first request message to the third node, the message mainly serving to obtain the configuration required by the first node for signal reception and/or transmission. The message has the advantages that the third node can perform signal receiving and/or transmitting configuration according to the state of the first node, so that time required for signal receiving and/or transmitting is reduced, and the first node is accelerated to access a new cell. The message contains at least one of the following information:

n fourth cell identification information indicating that the cell is a message that the first node may receive and/or transmit

The cell in which the number is located. In one embodiment, the cell may be a candidate target cell for the first node; and n indicating information of a fourth frequency point, wherein the frequency point indicated by the information is the frequency point where the signal possibly received and/or transmitted by the first node is located. In one embodiment, the frequency point may be a frequency point where a candidate target cell of the first node is located;

n second measurement result information, which indicates a measurement result of the signal by the first node, where the signal may be a signal of the cell identified by the "fourth cell identification information" or may be a signal of a frequency point indicated by the "fourth frequency point indication information", and the content of the information may be referred to the description of the "first measurement result information". In one embodiment, the content of the information may be generated based on the first report message of steps 1-3 above;

n second status report information indicating the status of the first node, which status information may assist the third node in generating the configuration required for the first node to receive and/or transmit signals. The content contained in this information can be referred to as "first status report information" described above. In one embodiment, the content of this information may be generated based on the first report message of steps 1-3 described above.

Step 1-0b: the third node sends a first response message to the second node. In order to help the first node to quickly access the serving cell of the third node, the third node may configure some resources for the first node to receive and/or transmit signals, on one hand, the first node may use the signals on these resources to discover the cell served by the third node, and on the other hand, the first node may also use these resources to access. The response message may contain configuration information to facilitate access by the first node. The message has the beneficial effects of configuring specific resources to assist the access of the first node, reducing communication interruption in the access process and providing the performance (such as throughput and the like) of the communication of the first node. The message contains at least one of the following information: n fifth cell identification information indicating that the cell is a message that the first node may receive and/or transmit

The cell in which the number is located. In one embodiment, the cell may be a candidate target cell for the first node; and n the indication information of the fifth frequency point, wherein the frequency point indicated by the information is the frequency point where the signal possibly received and/or transmitted by the first node is located. In one embodiment, the frequency point may be a frequency point where a candidate target cell of the first node is located;

Configuration information of the n second signals, which information indicates configuration information of signals on a serving cell of the third node, which information can be used for the first node access. In one embodiment, the configuration information is based on at least one of the "second measurement result information" and/or the "second status report information" in steps 1-0a

One to determine. The content contained in this information can be referred to as "configuration information of the first signal" described above. And n configuration information for the second signal transmission and reception, the information indicating configuration information used when transmitting and/or receiving signals on the serving cell of the third node. In one embodiment, the configuration information is determined based on at least one of the "second measurement result information" and/or the "second status report information" in steps 1-0 a. The content included in this information can be referred to as "configuration information of the first signal transmission and reception" described above.

The third node determines, according to the state of the first node, a configuration required for the first node to receive and/or transmit a signal, which may be a newly defined signal or an existing signal, before accessing a cell served by the third node. The third node adjusts the sending or receiving of the signal (e.g. adjusts the sending time of the downlink synchronization signal, adjusts the receiving time of the uplink synchronization signal, and sets the sending time of the downlink synchronization signal and the receiving time of the uplink synchronization signal to a relatively close position) according to the state of the first node.

Optionally, step 1-4: the first node sends a first indication message to the second node or the third node, the message serving to indicate the cell selected or accessed by the first node. The message has the beneficial effects that the network side can acquire the cell accessed by the first node, so that the data transmission with the first node can be started quickly, and the interruption of data communication is reduced.

After defining the above steps, in order to achieve fast access of the first node to the target cell, the following possible embodiments are possible.

Embodiment one

The configuration information of the first node for signal reception and/or transmission is obtained from measurements of the first node.

In this embodiment, the first node informs the second node of its measurement result of the neighbor node and/or the neighbor cell and/or the neighbor frequency point, and then the second node determines the configuration of the first node for signal reception and/or transmission according to the measurement result. This embodiment includes the following steps, as shown in fig. 8:

step a-1, the first node sends a message a-1 to the second node according to the measurement result, the message is used for reporting the measurement result of the first node, the specific description can be referred to as step 1-3, and the message a-1 can be referred to as the first report message.

Step a-2: the second node sends a message a-2 according to the received report information of the first node, and the message is used for configuring the first node to receive and/or send signals. For example, the second node may configure different time lengths according to different measurement results of the first node, so that the first node may perform signal reception and/or transmission, uplink and downlink synchronization of a cell, measurement of a signal, and the like. For a specific description of this step, reference is made to step 1-1 above.

Between steps a-1 and a-2, it is also possible to include an interaction procedure of the second node with the third node, namely:

step a-1a: the second node sends a message a-1a to the third node, the message being for requesting the third node to provide a signal that the first node receives and/or sends belonging to a cell served by the third node, a specific description of which may be found in steps 1-0a above;

Step a-1b: the third node sends a message a-1b to the second node in order to provide the second node with signals received and/or transmitted by the first node belonging to the cell served by the third node, a specific description of which may be found in steps 1-0b above.

Further, after step a-2, step a-3 is further included, and the second node transmits the message a-3 to the first node, where the step is mainly used to instruct the first node to receive and/or transmit the signal, and details can be seen in step 1-2 above. Optionally, after step a-2, the second node may perform step a-3 after receiving the measurement information reported by the first node (e.g., the information included in the first report message).

Further, after step a-2, it may further include synchronizing the first node with the neighbor cell and accessing the neighbor cell. After accessing the neighbor cell, the method further comprises a step a-4, wherein the first node sends a message a-4 to the second node or the third node, and the step is used for informing the network (the second node or the third node) that the first node accesses the cell, and the specific content can be seen in the steps 1-4

Second embodiment

The first node performs the access of the cell according to the configuration of the second node, and the second node is not required to trigger the first node to perform the cell switching. In this embodiment, the first node decides on the handover of the cell itself, depending on the configuration of the received and/or transmitted signals. This embodiment includes the following steps, as in fig. 9:

Step b-1. The second node transmits a message b-1 to the first node, the message being used for the reception and/or transmission of the configuration signal. This step can be seen in step 1-1 above.

Before step b-1, an interaction procedure (e.g., steps 1-0a and 1-0b described above) between the second node and the third node may be further included to obtain the configuration information in message b-1.

Optionally, when the step b-1 is used for pre-configuration, the method may further include a step b-2 of the second node sending a message b-2 to the first node, that is, sending indication information of signal reception and/or transmission to the first node, and a specific description may be referred to in the step 1-2.

After the above two steps, the first node can perform signal receiving and/or transmitting of the neighbor cell according to the configuration in the step b-1 and/or the step b-2, thereby completing the access of the neighbor cell. If the neighbor cell is accessed, the method can further comprise a step b-3, wherein the first node sends a message b-3 to the second node or the third node, and the step is used for informing the network (the second node or the third node) that the first node accesses the cell, and the specific content can be seen in the step 1-4.

Example III

The second node is instructed to perform a cell switch based on the synchronization state of the first node.

Step c-0: the second node configures a configuration message to the first node, wherein the message is used for configuring a candidate cell for switching for the first node, and the second node can also configure the first node to measure the candidate cell; for a specific description, reference is made to step 1-1 above.

Step c-1. The first node measures the candidate cell based on the configuration information of the second node. In this step, the first node may determine whether to save/retain (downlink or uplink or downlink) synchronization information (or Quasi Co-Location of reference signal, QCL attribute information) in the following possible manners:

Mode one: and saving the synchronization information of the cell, namely, after the first node obtains the synchronization information of the candidate cell in the process of measuring the candidate cell, the first node saves the synchronization information of the cell. This manner has no limitation on the capability of the first node, such as the number of cells to which the synchronization information stored by the first node belongs.

Mode two: it is determined whether to save synchronization information of the cell based on the configuration of the second node. In this manner, step c-0 indicates whether the first node needs to save the synchronization information of the candidate cell (as indicated by "first behavior indication information" in the "first signaling configuration information" in step 1-1). If step c-0 indicates that the synchronization information of the candidate cell is needed to be saved, the first node saves the synchronization information of the candidate cell after obtaining the synchronization information of the candidate cell in the process of measuring the candidate cell by the first node. This manner has no limitation on the capability of the first node, such as the number of cells to which the synchronization information stored by the first node belongs.

Mode three: after the synchronization information of the indicated cell is saved, that is, after the synchronization information of the candidate cell is obtained during the process of measuring the candidate cell by the first node, if it is indicated in step c-0 that the first node needs to save the synchronization information of the candidate cell (for example, the synchronization information of which cells need to be saved by the first node is indicated by the "indication information of the first behavior" and the "first target indication information" in the "configuration information of the first signal transmission and reception" in step 1-1), the first node may save the synchronization information, otherwise, the synchronization information may not be saved. In this manner, the first node can only save synchronization information of the cell selected by the second node.

Mode four: the synchronization information of the cell satisfying a condition that the second node is configured to the first node (as configured by step c-0, the condition may be a condition indicated by the "first condition indication information" of step 1-1) is stored. In one embodiment, if the measurement result of the cell is greater than the threshold indicated by the "fifth threshold information" in the above step 1-1, the first node saves the synchronization information of the cell; in one embodiment, if the number of cells to which the synchronization information stored in the first node belongs is less than the threshold indicated by the "fifth threshold information" in the step 1-1, the first node stores the synchronization information of the cells; in one embodiment, if the number of cells to which the synchronization information stored in the first node belongs is smaller than the threshold indicated by the "fifth threshold information" in the above step 1-1 and the measurement result of the cell is greater than the threshold indicated by the "fifth threshold information" in the above step 1-1, the first node stores the synchronization information of the cell; in one embodiment, if the number of cells to which the synchronization information stored in the first node belongs is equal to the threshold indicated by the "fifth threshold information" in the above step 1-1 and the measurement result of the cell is greater than the threshold indicated by the "fifth threshold information" in the above step 1-1, when the measurement result of the cells to which the synchronization information stored in the first node belongs is greater than the cell, the first node does not store the synchronization information of the cell, and when the measurement result of the partial cells to which the synchronization information stored in the first node belongs is less than the cell, the first node stores the synchronization information of the cell and deletes the synchronization information of a cell (the cell is one of the cells to which the synchronization information stored in the first node belongs, such as the one with the smallest measurement result).

Step c-2: the first node reports the measurement result to the second node, and the specific description can be seen in the above description of step 1-3. In one embodiment, the first node may report the measurement result of any cell measured by the first node, and then the first node may inform the second node whether the synchronization information of the cell is saved (for example, whether the synchronization information of the cell is saved by "the first status report information" in the step 1-3 above), through the reported measurement result, and in another embodiment, the first node may report the measurement result of the cell measured by the first node and having the synchronization information reserved, and then the cell included in the measurement result reported in the step is the cell having the synchronization information reserved by the first node.

And c-3, the second node indicates the behavior of the first node according to the reported measurement result, and the specific description can be seen in the step 1-2. In one embodiment, if the second node acquires the cell storing the synchronization information through step c-2, the second node may trigger the first node to perform random access in the cell through the step c-3, for example, the second node triggers the first node to perform random access in the cell through the PDCCH; in one embodiment, the second node instructs the first node to switch to a cell, and upon receipt of the instruction, the first node begins the switching process (e.g., downlink synchronization, uplink synchronization, etc.).

Fig. 10 is a block diagram of a network node in a network according to the invention.

The network node herein may be used to implement a first node, a second node, a third node, etc. in the present invention.

Referring to fig. 10, a network node according to the present invention includes a transceiver 1010, a controller 1020, and a memory 1030. The transceiver 1010, controller 1020, and memory 1030 are configured to perform the operations of the methods and/or embodiments of the present invention. Although transceiver 1010, controller 1020, and memory 1030 are shown as separate entities, they may be implemented as a single entity, such as a single chip. The transceiver 1010, the controller 1020, and the memory 1030 may be electrically connected or coupled to each other. The transceiver 1010 may transmit and receive signals to and from other network nodes, such as user terminal devices, base stations, or core network nodes. The controller 1020 may include one or more processing units and may control the network node to perform operations and/or functions in accordance with one of the embodiments described above. Memory 1030 may store instructions for implementing the operations and/or functions of one of the embodiments described above.

Claims

1. A method performed by a first node of a communication system, comprising:

sending a first message to a second node, wherein the first message comprises related information of a state of the first node;

receiving a second message from a second node, wherein the second message comprises first configuration information related to the signal transmission and/or reception of the first node;

And transmitting and/or receiving signals based on the first configuration information.

2. The method of claim 1, wherein the information regarding the state in which the first node is located comprises at least one of:

Information identifying that the first node is in a state in which no cell/frequency point/node is found;

information identifying that the first node is in a state of discovering a cell/frequency point/node;

Information indicating that the first node is in a state in which a downlink first synchronization signal has been received;

Information indicating that the first node is in a state in which the downlink synchronization signal has been completed;

information indicating that the first node is in a state of transmitting an uplink synchronization signal;

information indicating that the first node is in a state in which uplink synchronization has been acquired.

3. The method of claim 1, wherein the first configuration information related to the transmission and/or reception of signals by the first node comprises at least one of:

First configuration identification information for identifying a configuration required for the first node to perform signal reception and/or transmission;

first target indication information for indicating a target to which a signal received and/or transmitted by the first node belongs;

First signal configuration information indicating configuration information of signals that the first node needs to receive and/or transmit;

First signaling information for instructing the first node to perform signal reception and/or transmission of configuration information required;

first access information indicating a configuration used by the first node when accessing the target cell.

4. The method of claim 1, further comprising:

Receiving a third message from a second node, wherein the third message comprises second configuration information related to the signal transmission and/or reception of the first node;

Wherein, the sending and/or receiving of the signal comprises: and transmitting and/or receiving signals based on the first configuration information and the second configuration information.

5. The method of claim 1, wherein, in response to the first message sent to the second node, a first request message including information about a state in which the first node is located is sent from the second node to the third node, and a first response message including the first configuration information is sent from the third node to the second node.

6. A method according to claim 3,

Wherein the first target indication information includes at least one of the following information:

information related to the node at which the signal received and/or transmitted by the first node is located,

Information related to the cell in which the signal received and/or transmitted by the first node is located,

Information indicating the type of the cell in which the signal received and/or transmitted by the first node is located,

Information indicating a frequency point where a signal received and/or transmitted by a first node is located;

wherein the first signal configuration information includes at least one of:

information identifying a set of configurations of signals received and/or transmitted by the first node,

Information indicating the type of signal received and/or transmitted by the first node,

Information indicating the resources used to receive and/or transmit the signal,

Cell timing information indicating an offset of timing between different cells,

Configuration information for beams required for signal reception and/or transmission by the first node,

Information for sequences contained in signals received and/or transmitted by the first node,

Information indicating the timing advance needed when the first node sends a signal,

Information indicating a valid time of configuration information included in the configuration information of the first signal;

Wherein the first signaling configuration information includes at least one of the following information:

information identifying a set of configurations required for the first node to signal reception and/or transmission,

Information indicating the time range in which the first node is receiving and/or transmitting signals,

Information indicating the behaviour of the first node,

Information indicating conditions under which the first node performs signal reception and/or transmission.

7. The method according to claim 4, wherein the method comprises,

Wherein the second configuration information related to the transmission and/or reception of signals by the first node includes at least one of the following information:

Information about the configuration required to instruct the first node to receive and/or transmit signals,

Information about the node to which the signal received and/or transmitted by the first node belongs,

Information about a cell to which a signal received and/or transmitted by the first node belongs,

Information indicating the frequency point to which the signal received and/or transmitted by the first node belongs,

Information indicating the configuration of the signals received and/or transmitted by the first node,

Information about the configuration required to instruct the first node to signal reception and/or transmission,

Information about the configuration required to indicate the conditions for signal reception and/or transmission by the first node,

Information indicating the beam required for the first node to receive and/or transmit signals,

Information indicating the timing advance required for transmitting the uplink signal.

8. A method performed by a second node of a communication system, comprising:

Receiving a first message from a first node, wherein the first message comprises relevant information of a state of the first node;

And sending a second message to the first node, wherein the second message comprises first configuration information related to the sending and/or receiving of the signal by the first node.

9. The method of claim 8, wherein the information regarding the state in which the first node is located comprises at least one of:

10. The method of claim 8, further comprising: ,

Transmitting, to a third node, a first request message including information about a state in which the first node is located in response to a first message received from the first node, and

A first response message including the first configuration information is received from a third node.

11. A method performed by a third node of a communication system, comprising:

receiving a first request message including information about a state in which the first node is located from the second node, and

A first response message including first configuration information related to transmission and/or reception of signals at the first node is transmitted to a second node.

12. The method according to claim 11,

Wherein the first request message is sent by the second node in response to receiving a first message from the first node, the first message including information about a state in which the first node is located.

13. The method according to claim 11 or 12,

Wherein a second message is sent by a second node to a first node, the second message comprising first configuration information related to the sending and/or receiving of signals at the first node;

wherein the sending and/or receiving of the signal is performed by the first node based on the first configuration information.

14. The method according to claim 13,

Wherein a third message is sent by the second node to the first node, the third message including therein second configuration information related to the sending and/or receiving of signals at the first node;

Wherein the sending and/or receiving of the signal is performed by the first node based on the first configuration information and the second configuration information.

15. A network node in a communication system, comprising

A transceiver configured to transmit and receive signals; and

A controller coupled with the transceiver and configured to perform operations in the method of any of claims 1-14.