WO2023274072A1

WO2023274072A1 - Cell evaluation method and apparatus, terminal, relay, and storage medium

Info

Publication number: WO2023274072A1
Application number: PCT/CN2022/101187
Authority: WO
Inventors: 梁敬
Original assignee: 维沃移动通信有限公司
Priority date: 2021-07-01
Filing date: 2022-06-24
Publication date: 2023-01-05
Also published as: CN115567988A

Abstract

A cell evaluation method and apparatus, a terminal, a relay, and a storage medium, belonging to the technical field of communications. The cell evaluation method comprises: in a first state, a remote terminal executes cell selection or reselection evaluation. In the first state, the remote terminal has completed the selection or reselection of a relay, or, in the first state, the remote terminal has connected to a relay.

Description

Cell evaluation method, device, terminal, relay and storage medium

Cross References to Related Applications

This application claims priority to Chinese Patent Application No. 202110744500.6 filed in China on July 1, 2021, the entire contents of which are hereby incorporated by reference.

technical field

The present application belongs to the technical field of communication, and in particular relates to a cell evaluation method, device, terminal, relay and storage medium.

Background technique

At present, in some communication systems (for example: the fifth generation mobile communication technology (5th Generation Mobile Communication Technology, referred to as 5G) system), the terminal resides under the direct link (direct link). When the quality of the direct link is poor, the terminal Assessments for cell selection or reselection may be performed. However, when the terminal has completed relay selection or reselection, or when the terminal has connected to a relay, the terminal will not perform cell selection or reselection evaluation, resulting in relatively poor communication reliability of the terminal.

Contents of the invention

Embodiments of the present application provide a cell evaluation method, device, terminal, relay, and storage medium, which can solve the problem of relatively poor communication reliability of terminals.

In the first aspect, a community assessment method is provided, including:

In the first state, the remote terminal performs evaluation of cell selection or reselection;

Wherein, in the first state, the remote terminal has completed relay selection or reselection, or, in the first state, the remote terminal has connected to a relay.

In the second aspect, a community evaluation method is provided, including:

In the case that the relay is connected to the remote terminal, the relay performs evaluation of cell selection or reselection;

When the relay determines that the conditions for cell selection or reselection are met, the relay performs cell selection or reselection;

Wherein, notifying the remote terminal that the relay has performed cell selection or reselection after performing cell selection or reselection; or, receiving confirmation from the remote terminal after performing cell selection or reselection executed afterwards.

In a third aspect, a cell evaluation device is provided, and a remote terminal includes the device, including:

A first execution module, configured to perform evaluation of cell selection or reselection in the first state;

In a fourth aspect, a cell evaluation device is provided, and the relay includes the device, including:

A first executing module, configured to execute evaluation of cell selection or reselection when the relay is already connected to the remote terminal;

A second executing module, configured to execute cell selection or reselection when the relay determines that the conditions for cell selection or reselection are satisfied;

In a fifth aspect, a terminal is provided, the terminal is a remote terminal, and includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor, and the program or instruction is executed by The processor implements the steps of the remote terminal side cell evaluation method provided in this application when executed.

In a sixth aspect, a terminal is provided, the terminal is a remote terminal, and includes a processor and a communication interface, wherein the processor or the communication interface is used to perform cell selection or re-selection in the first state selected assessments;

In a seventh aspect, a relay is provided, including a processor, a memory, and a program or instruction stored in the memory and operable on the processor, and the program or instruction is implemented when executed by the processor. The steps of the cell evaluation method on the relay side provided in this application.

In an eighth aspect, a relay is provided, including a processor and a communication interface, wherein the communication interface is used for:

In the case that the relay and the remote terminal have been connected, perform evaluation of cell selection or reselection;

When the relay determines that the conditions for cell selection or reselection are met, perform cell selection or reselection;

In the ninth aspect, a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method for evaluating a cell at the remote terminal side provided by this application are implemented Or, when the program or instruction is executed by the processor, the steps of the cell evaluation method at the relay side provided in this application are realized.

In a tenth aspect, a computer program product is provided, the computer program product is stored in a non-volatile storage medium, and the computer program product is executed by at least one processor to implement the remote terminal side or The steps of the cell evaluation method on the relay side.

In this embodiment of the present application, the remote terminal performs evaluation of cell selection or reselection in the first state; wherein, in the first state, the remote terminal has completed relay selection or reselection, or, In the first state, the remote terminal has connected to a relay. Since the remote terminal can perform evaluation of cell selection or reselection in the above-mentioned first state, so that the evaluation operation of cell selection or reselection can be normally performed when the remote terminal communicates through a relay, so the terminal can be improved. communication reliability.

Description of drawings

FIG. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable;

FIG. 2 is a flow chart of a cell evaluation method provided in an embodiment of the present application;

FIG. 3 is a flow chart of another cell evaluation method provided by an embodiment of the present application;

FIG. 4 is a structural diagram of a cell evaluation device provided by an embodiment of the present application;

FIG. 5 is a structural diagram of another cell evaluation device provided by an embodiment of the present application;

FIG. 6 is a structural diagram of a communication device provided by an embodiment of the present application;

FIG. 7 is a structural diagram of a terminal provided in an embodiment of the present application;

FIG. 8 is a structural diagram of a relay provided by an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and "second" distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the description and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

It is worth noting that the technology described in the embodiment of this application is not limited to the Long Term Evolution (Long Term Evolution, LTE)/LTE-Advanced (LTE-Advanced, LTE-A) system, and can also be used in other wireless communication systems, such as code Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (Single-carrier Frequency-Division Multiple Access, SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies. The following description describes the New Radio (New Radio, NR) system for example purposes, and uses NR terms in most of the following descriptions. These technologies can also be applied to applications other than NR system applications, such as the 6th generation (6th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable. The wireless communication system includes a remote terminal (remote UE) 11, a relay (Relay) 12 and a network side device 13.

Wherein, the remote terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the remote terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook Computer, Personal Digital Assistant (PDA), PDA, Netbook, Ultra-Mobile Personal Computer (UMPC), Mobile Internet Device (MID), Wearable Device ) or vehicle user equipment (Vehicle User Equipment, VUE), pedestrian terminal (Pedestrian User Equipment, PUE) and other terminal-side equipment, wearable devices include: smart watches, bracelets, earphones, glasses, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 .

The relay 12 may be a dedicated relay device, or a relay terminal (relay UE). Wherein, the remote terminal 11 may connect to the network side device 13 through one or more relays 12 . It should be noted that when the remote terminal 11 is connected to the network-side device 13 through multiple relays 12, the multiple relays 12 may adopt a serial transmission relationship, a parallel transmission relationship or other forms of transmission relationship. In FIG. 1 , a relatively simple two-hop relay is taken as an example. One end of the relay 12 is connected to the remote terminal 11 , and the other end is connected to the network side device 13 . In addition, there is a Uu interface between the relay 12 and the network side device 13, and a sidelink (sidelink, or translated as side link, side link, etc.) interface between the relay 12 and the remote terminal 11, or called PC5 interface.

The network side device 13 may be a base station or a core network, where a base station may be called a Node B, an evolved Node B, an access point, a Base Transceiver Station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, Wireless Local Area Network (WLAN) ) access point, wireless fidelity (Wireless Fidelity, WiFi) node, transmitting and receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to Specific technical terms, it should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

It should be noted that the above mainly takes the UE-to-network scenario as an example, and the remote terminal 11 communicates with the network side device 13 through the relay 12 . In some implementation manners, this embodiment of the present application can also be applied to a UE-to-UE relay scenario, that is, the two ends of the relay 11 are connected to different terminals.

In addition, in the embodiment of the present application, the remote terminal 11 may also directly communicate with the network side device 13 .

A cell evaluation method, device, terminal, relay and storage medium provided by the embodiments of the present application are described in detail below through some embodiments and application scenarios with reference to the accompanying drawings.

Please refer to FIG. 2. FIG. 2 is a flow chart of a cell evaluation method provided in the embodiment of the present application. As shown in FIG. 2, it includes the following steps:

Step 201, the remote terminal performs evaluation of cell selection or reselection in the first state;

The foregoing that the remote terminal has completed relay selection or reselection in the first state may be understood as, in the case that the remote terminal has completed relay selection or reselection, the remote terminal performs cell selection or re-election assessment.

The foregoing that the remote terminal has been connected to the relay in the first state may be understood as that, in the case that the remote terminal has been connected to the relay, the remote terminal performs evaluation of cell selection or reselection.

Wherein, the above evaluation of cell selection or reselection may include: evaluation of cell selection or reselection based on system information and cell measurement results. Specifically, it may be to search for a cell, and judge whether the searched cell satisfies a condition for cell selection or reselection. For example: obtaining system information of a cell, judging whether the cell is prohibited from attaching or accessing, and performing signal quality measurement on the cell to judge whether the signal quality measurement result meets preset requirements.

In the embodiment of the present application, through the above steps, the evaluation of the remote terminal performing cell selection or reselection in the above first state can be realized, so that the remote terminal can normally perform cell selection or reselection even when the remote terminal communicates through the relay. The selected evaluation operation can thus improve the communication reliability of the terminal. For example: perform cell selection or reselection according to the evaluation result, or perform relay selection or reselection.

As an optional implementation manner, the performing evaluation of cell selection or reselection includes:

The remote terminal performs evaluation of cell selection or reselection based on a direct link (Direct link); or

The remote terminal performs evaluation of cell selection or reselection based on an indirect link (Indirect link); or

The remote terminal performs evaluation of cell selection or reselection based on direct and indirect links.

Wherein, the direct link refers to the direct Uu link between the terminal and the network-side device, and the indirect link refers to the indirect link in which the remote terminal is connected to the relay and then connected to the network-side device.

The remote terminal performing the assessment of cell selection or reselection based on the direct link may be that the remote terminal performs the assessment of cell selection or reselection based on the information acquired by the direct link.

The remote terminal performing the assessment of cell selection or reselection based on the indirect link may be that the remote terminal performs the assessment of cell selection or reselection based on the information acquired by the indirect link.

The evaluation of the remote terminal performing the cell selection or reselection based on the direct link and the indirect link may be that the remote terminal performs the evaluation of the cell selection or reselection based on the information acquired by the direct link and the indirect link.

In this embodiment, the evaluation of cell selection or reselection performed by the remote terminal in the first state can be flexibly supported through the above three methods, so as to meet the requirements of different scenarios.

Optionally, the remote terminal performs evaluation of cell selection or reselection based on the direct link, including:

The remote terminal performs cell selection or reselection evaluation based on first system information and a first measurement result, where the first system information is system information received by the remote terminal based on a direct link, and the The first measurement result is a measurement result of the remote terminal based on direct link measurement.

Wherein, the above-mentioned first system information may be the system information sent by the remote terminal based on the direct link receiving network side equipment, and the system information is system information related to cell selection or reselection, such as system information block (System Information Block, SIB)2, SIB3, SIB4, SIB5, etc. The remote terminal can determine whether the cell is prohibited from attaching or accessing based on the above first system information

The above-mentioned first measurement result is the measurement result of the local cell and/or neighboring cells measured by the remote terminal on the direct link, such as Reference Signal Received Power (Reference Signal Received Power, RSRP) and/or Reference Signal Received Quality (Reference Signal Received Power). Received Quality, RSRQ). The remote terminal may judge whether the signal quality of the cell satisfies a preset condition based on the foregoing first measurement result.

In this implementation manner, evaluation of cell selection or reselection based on system information and measurement results obtained through the direct link can be implemented.

Optionally, the remote terminal performs evaluation of cell selection or reselection based on the first system information and the first measurement result, including:

The remote terminal performs cell selection or reselection evaluation based on the first system information and the first measurement result under the first condition, where the first condition includes at least one of the following:

The remote terminal is within the coverage of the cell;

The remote terminal can receive system information related to cell selection or reselection.

Wherein, the foregoing remote terminal being able to receive system information related to cell selection or reselection may be that the terminal is able to receive system information based on a direct link.

The above system information related to cell selection or reselection is system information used for cell selection or reselection. Such as SIB2, SIB3, SIB4, SIB5, etc.

In some implementation manners, the remote terminal may not perform the determination of the above-mentioned first condition, but directly perform the evaluation of cell selection or reselection based on the direct link.

Optionally, the remote terminal performs evaluation of cell selection or reselection based on an indirect link, including:

The remote terminal performs cell selection or reselection evaluation based on the second system information and the second measurement result, wherein the second system information is the relay forwarding obtained by the remote terminal based on an indirect link system information, the second measurement result is the measurement result of the relay measurement obtained by the remote terminal based on the indirect link.

Wherein, the above-mentioned second system information may be that the relay obtains the system information of the network side device and forwards it to the remote terminal. The above second system information may be system information related to cell selection or reselection, such as SIB2, SIB3, SIB4, SIB5 and so on.

The above-mentioned second measurement result may be the measurement result of the current cell and/or the neighboring cell measured by the relay and forwarded to the remote terminal. Wherein, the current cell here may refer to the serving cell of the relay, or may refer to the serving cell directly within the coverage of the remote terminal. The foregoing second measurement result may include RSRP and/or RSRQ.

In this embodiment, it is possible to obtain system information and measurement results based on indirect links, and perform evaluation of cell selection or reselection.

Optionally, the remote terminal performs evaluation of cell selection or reselection based on the second system information and the second measurement result, including:

The remote terminal performs cell selection or reselection evaluation based on the second system information and the second measurement result under the second condition, wherein the second condition includes at least one of the following:

The remote terminal is outside the coverage of the cell;

The remote terminal cannot receive system information related to cell selection or reselection based on the direct link.

In this implementation manner, it may be implemented that the evaluation of cell selection or reselection is performed based on the second system information and the second measurement result only when the above second condition is satisfied.

In some implementation manners, the remote terminal may not perform the determination of the above-mentioned second condition, but directly perform the evaluation of cell selection or reselection based on the indirect link.

Optionally, the remote terminal performs evaluation of cell selection or reselection based on the direct link and the indirect link, including:

The remote terminal performs evaluation of cell selection or reselection based on third system information and a third measurement result, wherein the third system information is the relay forwarding obtained by the remote terminal based on an indirect link system information, the third measurement result is the measurement result of the remote terminal based on the direct link measurement.

Wherein, the above-mentioned third system information may be obtained by the relay from the system information of the network side equipment and forwarded to the remote terminal, and the above-mentioned third system information may be system information related to cell selection or reselection, such as SIB2, SIB3, SIB4, SIB5, etc.

The above-mentioned third measurement result is the measurement result of the local cell and/or neighboring cells measured by the remote terminal on the direct link, such as RSRP and/or RSRQ.

In this implementation manner, evaluation of cell selection or reselection can be performed based on system information obtained through indirect links and measurement results obtained through direct links.

Optionally, the remote terminal performs evaluation of cell selection or reselection based on the third system information and the third measurement result, including:

The remote terminal performs evaluation of cell selection or reselection based on the third system information and the third measurement result under the third condition, wherein the third condition includes at least one of the following:

The remote terminal is outside the coverage of the cell;

In this implementation manner, it may be implemented that the evaluation of cell selection or reselection is performed based on the third system information and the third measurement result only when the above third condition is satisfied.

In some implementation manners, the remote terminal may not perform the determination of the above third condition, but directly perform evaluation of cell selection or reselection based on the direct link and the indirect link.

As an optional implementation, the method also includes:

If the remote terminal determines that the conditions for cell selection or reselection are satisfied, the remote terminal continues to camp on the indirect link between the remote terminal and the relay; or

When the remote terminal determines that the conditions for cell selection or reselection are met, the remote terminal performs cell selection or reselection, camps on the direct link, and performs at least one of the following:

Notifying the relay that the remote terminal has performed cell selection or reselection;

triggering the release of the unicast link between the remote terminal and the relay;

When the selected or reselected cell is in a different tracking area (Tracking Area, TA) or access network notification area (RAN-based Notification Area, RNA) than the serving cell connected to the relay, trigger the corresponding TAU or RNAU process;

In the case that the selected or reselected cell does not belong to the TA or RNA of the remote terminal, a corresponding TAU or RNAU process is triggered.

Satisfying the condition for cell selection or reselection may be that the remote terminal determines that the condition for cell selection or reselection is satisfied based on the acquired system information and measurement results. Wherein, the condition for cell selection or reselection may be the condition defined in the agreement, or the condition newly defined in the subsequent agreement, which is not limited.

In the above embodiment, after the above conditions are satisfied, the remote terminal continues to camp on the indirect link between the remote terminal and the relay, or performs cell selection or reselection, and camps on the direct link. Specifically, it can be determined based on the implementation of the remote terminal. For example, according to the implementation configuration or requirements of the remote terminal, choose whether to camp on the indirect link between the remote terminal and the relay, or choose to perform cell selection or reselection. Stay on said direct link.

In this embodiment, by notifying the relay that the remote terminal has performed cell selection or reselection, the relay can know that the remote terminal has performed cell selection or reselection, so that the relay can perform corresponding actions , for example: stop forwarding of all or part of the data to avoid transferring resources.

In this embodiment, by triggering the release of the unicast link between the remote terminal and the relay, transmission resources can be saved.

In this embodiment, by triggering the corresponding TAU or RNAU process, it can be ensured that the terminal TA or RNA is real-time and timely, so as to improve the communication performance of the terminal.

It should be noted that, the foregoing implementation manners can be applied to all scenarios where evaluation of cell selection or reselection is performed. In addition, in some implementation manners, when the remote terminal performs cell selection or reselection, and camps on the direct link, it may not perform at least one of the following:

In the case that the selected or reselected cell is in a different TA or RNA from the serving cell connected to the relay, triggering a corresponding TAU or RNAU process;

As an optional implementation, the method also includes:

When the remote terminal determines that the conditions for cell selection or reselection are met, perform at least one of the following:

Notifying the relay to perform cell selection or reselection;

sending to the relay the identity of a target cell for cell selection or reselection by the relay;

reserving a unicast link between the remote terminal and the relay;

In the case that the selected or reselected cell does not belong to the TA or RNA of the remote terminal, trigger the corresponding TAU or RNAU process;

By notifying the relay to perform cell selection or reselection, it can be realized that when the remote terminal determines that the conditions for cell selection or reselection are met, the relay is made to perform cell selection or reselection, thereby improving the communication of the relay. reliability.

The above-mentioned target cell identifier may be the target cell selected or reselected by the remote terminal, and specifically may include at least one of the following:

Physical Cell ID (PCI), frequency point information, NR Cell Identifier (NR Cell Identifier, NCI), NR Cell Global Identifier (NR Cell Global Identifier, NCGI).

By sending the identifier of the target cell for cell selection or reselection to the relay, the remote terminal can tell the relay the target cell for cell selection or reselection, so that the relay can quickly select or reselect to target area.

In this embodiment, since the relay can perform cell selection or reselection, the remote terminal and the relay can select or reselect another cell as a whole, which is equivalent to the remote terminal and the relay performing the same Group handover is similar to group cell reselection.

This implementation manner can be applied to a scenario where the remote terminal performs evaluation of cell selection or reselection based on an indirect link.

As an optional implementation, the method also includes:

performing relay selection or reselection, wherein the serving cell of the selected or reselected relay is a target neighboring cell, wherein the target neighboring cell is a neighboring cell determined to perform cell selection or reselection;

Wherein, the cell to which the relay belongs can be known through a discovery (discovery) message or other messages.

In this embodiment, it is possible to perform relay selection or reselection when the remote terminal determines that the conditions for cell selection or reselection are met, and since the serving cell is selected as the relay of the above-mentioned target neighboring cell, the remote terminal can improve The communication quality of the connection to the relay.

It should be noted that, in some implementation manners, when the conditions for cell selection or reselection are met, relay selection or reselection is directly performed without considering whether the serving cell of the relay is the target neighboring cell.

In addition, triggering the corresponding TAU or RNAU process may be triggering the selected or reselected relay to perform the TAU or RNAU process.

As an optional implementation, the method also includes:

In the second state, the remote terminal performs relay selection or reselection evaluation, and does not perform cell selection or reselection evaluation, wherein the second state includes at least one of the following:

The remote terminal is outside the coverage of the cell;

The remote terminal cannot receive system information related to cell selection or reselection from the direct link.

In this implementation manner, it can be realized that in the above second state, evaluation of cell selection or reselection is not performed, thereby preventing the remote terminal from failing in attempting to obtain system information from the direct link in the above second state, thereby saving the power of the terminal. consumption. In addition, since the remote terminal evaluates relay selection or reselection in the second state, the remote terminal can be made to perform relay selection or reselection, so as to improve communication reliability of the remote terminal.

As an optional implementation manner, in the first state, the remote terminal connected to the relay includes at least one of the following:

The remote terminal has established a radio resource control (Radio Resource Control, RRC) connection with the relay;

When the remote terminal is in an idle state or an inactive state, the remote terminal is connected to the relay.

The foregoing that the remote terminal has established an RRC connection with the relay may include: the remote terminal has established an RRC connection with the relay, and the relay has established a Uu connection. In some implementation manners, it may not be considered whether the relay establishes a Uu connection.

In the above-mentioned case where the remote terminal is in an idle state or an inactive state, connecting to the relay may be that after the remote terminal is released to an idle state or an inactive state by a network side device, the remote terminal is still connected at this time relay.

In this implementation manner, the evaluation of cell selection or reselection performed by the remote terminal in various states may be supported.

In this embodiment of the present application, the remote terminal performs evaluation of cell selection or reselection in the first state; wherein, in the first state, the remote terminal has completed relay selection or reselection, or, In the first state, the remote terminal has connected to a relay. Since the remote terminal can perform evaluation of cell selection or reselection in the foregoing first state, communication reliability of the terminal can be improved.

Please refer to FIG. 3. FIG. 3 is a flow chart of another cell evaluation method provided in the embodiment of the present application. As shown in FIG. 3, it includes the following steps:

Step 301. In the case that the relay has been connected to the remote terminal, the relay performs evaluation of cell selection or reselection;

Step 302, when the relay determines that the conditions for cell selection or reselection are satisfied, the relay performs cell selection or reselection;

The evaluation of cell selection or reselection performed by the relay may be that the relay performs the evaluation of cell selection or reselection based on the system information and measurement results acquired by the relay.

In this embodiment, since the remote terminal is notified that the relay has performed cell selection or reselection after the cell selection or reselection is performed, the remote terminal and the relay can be implemented as a whole to select or reselect Select another cell to improve the communication reliability of the remote terminal.

The above performing the cell selection or reselection after receiving the confirmation from the remote terminal may mean that the confirmation from the remote terminal is received before performing the cell selection or reselection. Since the execution of cell selection or reselection is performed after receiving the confirmation from the remote terminal, it can be realized that the remote terminal and the relay are performed as a whole to select or reselect to another cell, so as to Improve the communication reliability of the remote terminal.

As an optional implementation manner, after the relay performs the step of evaluating cell selection or reselection, the method further includes at least one of the following:

The relay reserves a unicast link between the relay and the remote terminal;

The relay notifies the remote terminal of the identity of the cell selected or reselected by the relay.

Wherein, the identifier of the above-mentioned cell may include at least one of the following:

PCI, frequency point information, NCI, NCGI.

In this embodiment, because the relay reserves the unicast link between the relay and the remote terminal, communication reliability of the remote terminal can be improved.

In addition, since the relay notifies the remote terminal of the identity of the cell selected or reselected by the relay, the remote terminal obtains the identity of the cell selected or reselected by the relay, so that the remote terminal can use the The corresponding operation is carried out according to the identification, so as to improve the operation performance of the remote terminal.

As an optional implementation manner, after the relay performs the step of evaluating cell selection or reselection, the method further includes:

The relay sends a request message to the remote terminal, where the request message is used to request the remote terminal to confirm whether to perform a cell selection or reselection process;

When the relay determines that the conditions for cell selection or reselection are met, the relay performs cell selection or reselection, including:

When the relay determines that the conditions for cell selection or reselection are met, and the remote terminal confirms to perform the cell selection or reselection process, the relay performs cell selection or reselection.

The above request message may be sent to the remote terminal before step 302 is performed.

If the remote terminal returns an acknowledgment to the relay, go to step 302 .

In this embodiment, since the remote terminal is notified that the relay has performed cell selection or reselection after performing cell selection or reselection, or, after performing cell selection or reselection It is performed after the confirmation of the end terminal, so that the remote terminal and the relay can be implemented as a whole, and select or reselect to another cell, so as to improve the communication reliability of the remote terminal.

The cell evaluation method provided by the embodiment of the present application is illustrated below through multiple embodiments:

Embodiment one:

In this embodiment, the remote terminal performs cell selection evaluation on the direct link, and directly measures the RSRP (or RSRQ) of the current cell and/or the RSRP (RSRQ) of the neighboring cell for illustration:

When at least one of the following conditions is met, the remote terminal performs subsequent operations:

The remote terminal is within coverage;

The remote terminal can obtain system information related to cell selection or reselection;

Among them, the above follow-up operations may include:

The remote terminal evaluates the cell selection or reselection based on the system information (such as SIB2, SIB3, SIB4, SIB5, etc.) Whether it is forbidden to attach or access), and the remote terminal directly measures the RSRP (or RSRQ) of the current cell and/or neighboring cells on the direct link, and evaluates whether the relevant measurement results meet the conditions for cell selection or reselection.

When the conditions for cell selection or reselection are met, the remote terminal performs one of the following actions:

Based on the terminal implementation, it is decided whether to perform cell selection or reselection, or to continue to stay under the indirect link of the relay.

Performs cell selection or reselection and camps directly on the direct link. Optionally, the remote terminal may perform at least one of the following actions:

Notify the relay that it has performed cell selection or reselection;

Trigger the release of the unicast link with the relay;

If the new cell is in a different TA or RNA from the serving cell connected to the relay, trigger the corresponding TAU or RNAU process;

If the selected or reselected cell does not belong to the TA or RNA of the remote terminal, a corresponding TAU or RNAU process is triggered.

Embodiment two:

In this embodiment, the evaluation of cell selection or reselection performed by the remote terminal based on the relay forwarded system information is illustrated as an example:

Solution 1: The remote terminal obtains parameters related to cell selection or reselection evaluation based on the system information forwarded by the relay, and directly measures the RSRP (or RSRQ) of the current cell and/or the RSRP (or RSRQ) of the neighboring cell;

The remote terminal is out of coverage;

The remote terminal cannot obtain system information related to cell selection or reselection from the direct link.

The above follow-up actions may include:

The remote terminal evaluates the cell selection or reselection based on the system information (such as SIB2, SIB3, SIB4, SIB5, etc.) Attachment or access prohibited), and the remote terminal directly measures the RSRP (or RSRQ) of the local cell and/or neighboring cells on the direct link, and evaluates whether the relevant measurement results meet the conditions for cell selection or reselection.

Notify the relay that it has performed cell selection or reselection;

Trigger the release of the unicast link with the relay;

Solution 2: The remote terminal obtains parameters related to cell selection or reselection evaluation based on the system information forwarded by the relay, and at the same time, based on the RSRP (or RSRQ) of the current cell and/or the RSRP (or RSRQ) of the neighboring cell forwarded by the relay Determine whether the corresponding conditions are met.

At this point, the remote terminal evaluates cell selection or reselection based on the system information (such as SIB2, SIB3, SIB4, SIB5, etc.) Whether the cell is prohibited from attaching or accessing), and at the same time, based on the RSRP (or RSRQ) of the own cell and/or the RSRP (or RSRQ) of the neighboring cell obtained by the relay measurement and forwarded by the relay, evaluate whether the relevant measurement results satisfy the cell selection or re-election conditions. In this case, the following three methods are possible:

method 1:

Notify the relay that it has performed cell selection or reselection;

Trigger the release of the unicast link with the relay;

Method 2:

Notify the relay to perform cell reselection;

The identity of the target cell sent to the relay for cell reselection, where the identity of the cell may include at least one of the following:

PCI, frequency point information, NCI, NCGI.

Do not release the unicast link with the relay;

At this time, the remote terminal and the relay are equivalent to performing "group cell reselection" similar to "group handover", that is, the remote terminal and the relay are reselected to another cell that meets the conditions as a whole.

Method 3:

Trigger Relay reselection;

During the relay reselection process, the remote terminal learns the cell to which the relay belongs through a discovery message or other messages, and selects a relay whose serving cell ID is a target neighboring cell.

Embodiment three:

In this embodiment, the relay evaluates the cell selection or reselection based on the system information received by the direct link for cell selection or reselection, and the relay directly measures the cell and/or RSRP (or RSRQ) of neighboring cells.

At this time, the relay performs cell selection or reselection evaluation based on the system information (such as SIB2, SIB3, SIB4, SIB5, etc.) Judging whether the cell is prohibited from attaching or accessing), and the relay directly measures the RSRP (or RSRQ) of the current cell and/or neighboring cells on the direct link.

When the conditions for cell selection or reselection are met, the relay performs one of the following actions:

Directly perform cell selection or reselection.

Send a request message to the remote terminal to inquire whether to perform cell selection or reselection. If the remote terminal replies with an acknowledgment, optionally, the relay needs to perform at least one of the following actions:

Cell selection or reselection is performed directly as described above.

Wherein, in the case of directly performing cell selection or reselection, optionally, the relay may perform at least one of the following actions:

Notify the remote terminal that it has performed cell selection or reselection;

Do not release the unicast link with the relay;

Informing the remote terminal of the cell ID of the cell after its reselection, the cell ID may include at least one of the following: PCI, frequency point information, NCI, NCGI.

Wherein, the behavior of the remote terminal in all the schemes in the above three embodiments can occur in at least one of the following stages:

After the remote terminal completes relay selection or reselection;

After the remote terminal establishes a PC5-RRC connection with the relay;

After the remote terminal establishes a PC5-RRC connection with the relay, and the relay establishes a Uu connection;

After the remote terminal is released to the IDLE/INACTIVE state by the network side device, the remote terminal is still connected to the relay at this time.

In the embodiment of this application, the following can be realized:

The remote terminal judges whether it can receive the system information related to cell selection or reselection on the direct link (for example, based on the signal quality), and if it can receive it, it performs cell selection based on the parameters in the directly received system information. Selection or reselection evaluation, if not, cell selection or reselection is performed based on the parameters in the system information forwarded by the relay;

For all cell selection and reselection performed by the remote terminal after selecting the relay, the remote terminal needs to be notified after the cell selection and reselection is completed, and the PC5-RRC connection may be released;

The remote terminal evaluates based on the system information related to cell selection or reselection forwarded by the relay and the RSRP (or RSRQ) of the own cell and/or neighboring cells forwarded by the relay. If the conditions are met, the remote terminal triggers the group cell Reselection, the remote terminal and the relay reselect to a new cell together;

The remote terminal evaluates based on the system information related to cell selection or reselection forwarded by the relay and the RSRP (or RSRQ) of the cell and/or neighboring cells forwarded by the relay. If the conditions are met, the remote terminal triggers the relay Reselection, reselection to the serving cell whose identity is the target neighboring cell or above;

The relay evaluates based on the system information related to cell selection or reselection and the RSRP (or RSRQ) of the own cell and/or neighboring cells measured by itself. If the conditions are met, the relay and the remote terminal will reselect to the new target area. Optionally, it can be executed after the remote terminal is requested and confirmed.

Through the embodiment of the present application, the remote terminal can normally perform evaluation of cell selection and reselection even when it is connected to the relay.

Please refer to FIG. 4. FIG. 4 is a structural diagram of a cell evaluation device provided in an embodiment of the present application. The remote terminal includes the device, as shown in FIG. 4, including:

The first execution module 401, in the first state, executes evaluation of cell selection or reselection;

Optionally, the evaluation of performing cell selection or reselection includes:

the remote terminal performs an evaluation of cell selection or reselection based on a direct link; or

the remote terminal performs an evaluation of cell selection or reselection based on an indirect link; or

The remote terminal is within the coverage of the cell;

The remote terminal is outside the coverage of the cell;

Optionally, the device also includes:

The first camping module is configured to continue camping on the indirect link between the remote terminal and the relay when the remote terminal determines that the conditions for cell selection or reselection are met; or

The second camping module is configured to perform cell selection or reselection when the remote terminal determines that the conditions for cell selection or reselection are met, camp on the direct link, and perform at least one of the following :

When the selected or reselected cell is in a different tracking area TA or radio access network notification area RNA than the relay-connected serving cell, trigger the corresponding tracking area update TAU or radio access network notification area update RNAU process;

Optionally, the device also includes:

The second execution module is configured to execute at least one of the following when the remote terminal determines that the conditions for cell selection or reselection are satisfied:

Notifying the relay to perform cell selection or reselection;

reserving a unicast link between the remote terminal and the relay;

Optionally, the device also includes:

The third execution module is configured to execute at least one of the following when the remote terminal determines that the conditions for cell selection or reselection are satisfied:

Optionally, the device also includes:

An evaluation module, configured to perform evaluation of relay selection or reselection in a second state, and not perform evaluation of cell selection or reselection, wherein the second state includes at least one of the following:

The remote terminal is outside the coverage of the cell;

Optionally, in the first state, the remote terminal connected to the relay includes at least one of the following:

The remote terminal has established a radio resource control RRC connection with the relay;

Optionally, the remote terminal has established an RRC connection with the relay, including:

The remote terminal has established an RRC connection with the relay, and the relay has established a Uu connection.

The cell evaluation apparatus in the embodiment of the present application can improve the communication reliability of the terminal.

The cell evaluation device in this embodiment of the present application may be a device, a device with an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal. The apparatus or electronic equipment may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include but not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (Personal Computer, PC), a television ( Television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.

The cell evaluation device provided by the embodiment of the present application can realize each process realized by the method embodiment in FIG. 2 and achieve the same technical effect. To avoid repetition, details are not repeated here.

Please refer to FIG. 5. FIG. 5 is a structural diagram of a cell evaluation device provided in an embodiment of the present application. The relay includes the device, as shown in FIG. 5, including:

The first execution module 501 is configured to perform evaluation of cell selection or reselection when the relay is already connected to the remote terminal;

The second execution module 502 is configured to perform cell selection or reselection when the relay determines that the conditions for cell selection or reselection are satisfied;

Optionally, the device also includes at least one of the following:

a reservation module, configured to reserve the unicast link between the relay and the remote terminal;

A notification module, configured to notify the remote terminal of the identity of the cell selected or reselected by the relay.

Optionally, the device also includes:

A sending module, configured to send a request message to the remote terminal, where the request message is used to request the remote terminal to confirm whether to perform a cell selection or reselection process;

The second execution module 502 is configured to perform cell selection or reselection by the relay when the relay determines that the conditions for cell selection or reselection are met, and the remote terminal confirms the execution of the cell selection or reselection process .

The cell evaluation device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or a component, an integrated circuit, or a chip in a relay.

Optionally, as shown in FIG. 6 , this embodiment of the present application further provides a communication device 600, including a processor 601, a memory 602, and programs or instructions stored in the memory 602 and operable on the processor 601, For example, when the communication device 600 is a remote terminal, when the program or instruction is executed by the processor 601, each process of the above embodiment of the cell evaluation method on the remote terminal side can be realized, and the same technical effect can be achieved. For example, when the communication device 600 is a relay, when the program or instruction is executed by the processor 601, each process of the above embodiment of the cell evaluation method on the relay side can be realized, and the same technical effect can be achieved.

The embodiment of the present application also provides a terminal, the terminal is a remote terminal, including a processor and a communication interface, wherein the processor or the communication interface is used to: in the first state, perform cell selection or evaluation of re-election;

This embodiment corresponds to the above-mentioned method embodiment, and each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this embodiment, and can achieve the same technical effect. Specifically, FIG. 7 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.

The terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710, etc. at least some of the components.

Those skilled in the art can understand that the terminal 700 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 710 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions. The terminal structure shown in FIG. 2 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here.

It should be understood that, in the embodiment of the present application, the input unit 704 may include a graphics processor (Graphics Processing Unit, GPU) 7041 and a microphone 7042, and the graphics processor 7041 is used for the image capture device ( Such as the image data of the still picture or video obtained by the camera) for processing. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes a touch panel 7071 and other input devices 7072 . The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts, a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, and joysticks, which will not be repeated here.

In the embodiment of the present application, the radio frequency unit 701 receives the downlink data from the network side device, and processes it to the processor 710; in addition, sends the uplink data to the network side device. Generally, the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 709 can be used to store software programs or instructions as well as various data. The memory 709 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.) and the like. In addition, the memory 709 may include a high-speed random access memory, and may also include a nonvolatile memory, wherein the nonvolatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

The processor 710 may include one or more processing units; optionally, the processor 710 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 710 .

Wherein, the radio frequency unit 701 or the processor 710 is configured to perform evaluation of cell selection or reselection in the first state;

performing an evaluation of cell selection or reselection based on a direct link; or

performing an evaluation of cell selection or reselection based on an indirect link; or

Based on direct and indirect links, evaluation of cell selection or reselection is performed.

Optionally, the evaluation of performing cell selection or reselection based on the direct link includes:

Perform evaluation of cell selection or reselection based on first system information and a first measurement result, where the first system information is system information received by the remote terminal based on a direct link, and the first measurement result is The remote terminal is based on measurements of direct link measurements.

Optionally, the performing evaluation of cell selection or reselection based on the first system information and the first measurement result includes:

Under the first condition, based on the first system information and the first measurement result, perform evaluation of cell selection or reselection, where the first condition includes at least one of the following:

The remote terminal is within the coverage of the cell;

Optionally, the evaluation of performing cell selection or reselection based on an indirect link includes:

Perform evaluation of cell selection or reselection based on the second system information and the second measurement result, where the second system information is the system information forwarded by the relay obtained by the remote terminal based on an indirect link, so The second measurement result is a measurement result of the relay measurement obtained by the remote terminal based on an indirect link.

Optionally, the performing evaluation of cell selection or reselection based on the second system information and the second measurement result includes:

Under the second condition, based on the second system information and the second measurement result, perform evaluation of cell selection or reselection, wherein the second condition includes at least one of the following:

The remote terminal is outside the coverage of the cell;

Optionally, the evaluation of performing cell selection or reselection based on the direct link and the indirect link includes:

Perform evaluation of cell selection or reselection based on the third system information and the third measurement result, where the third system information is the system information forwarded by the relay obtained by the remote terminal based on an indirect link, so The third measurement result is a measurement result of the remote terminal based on direct link measurement.

Optionally, the performing evaluation of cell selection or reselection based on the third system information and the third measurement result includes:

Under the third condition, the evaluation of cell selection or reselection is performed based on the third system information and the third measurement result, wherein the third condition includes at least one of the following:

The remote terminal is outside the coverage of the cell;

Optionally, the radio frequency unit 701 or the processor 710 is also used to:

If the remote terminal determines that the conditions for cell selection or reselection are met, continue to camp on the indirect link between the remote terminal and the relay; or

When the remote terminal determines that the conditions for cell selection or reselection are met, perform cell selection or reselection, camp on the direct link, and perform at least one of the following:

Optionally, the radio frequency unit 701 or the processor 710 is also used to:

Notifying the relay to perform cell selection or reselection;

reserving a unicast link between the remote terminal and the relay;

Optionally, the radio frequency unit 701 or the processor 710 is also used to:

The remote terminal is outside the coverage of the cell;

The terminal in the embodiment of the present application can improve the communication reliability performance of the terminal.

Specifically, the terminal in this embodiment of the present invention also includes: instructions or programs stored in the memory 709 and operable on the processor 710, and the processor 710 calls the instructions or programs in the memory 709 to execute the functions executed by the modules shown in FIG. method, and achieve the same technical effect, in order to avoid repetition, it is not repeated here.

The embodiment of the present application also provides a relay, including a processor and a communication interface, wherein the communication interface is used for:

This embodiment corresponds to the above-mentioned method embodiment, and each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this embodiment, and can achieve the same technical effect. Specifically, FIG. 8 is a schematic diagram of a relay hardware structure implementing an embodiment of the present application.

The relay 800 includes, but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, and a processor 810, etc. at least some of the components.

Those skilled in the art can understand that the relay 800 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 810 through the power management system, so that the management of charging, discharging, and function can be implemented through the power management system. Consumption management and other functions. The relay structure shown in FIG. 2 does not constitute a limitation to the relay, and the relay may include more or less components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here. .

It should be understood that, in the embodiment of the present application, the input unit 804 may include a graphics processor (Graphics Processing Unit, GPU) 8041 and a microphone 8042, and the graphics processor 8041 is used for the image capture device ( Such as the image data of the still picture or video obtained by the camera) for processing. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 807 includes a touch panel 8071 and other input devices 8072 . The touch panel 8071 is also called a touch screen. The touch panel 8071 may include two parts, a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, and joysticks, which will not be repeated here.

In the embodiment of the present application, the radio frequency unit 801 receives the downlink data from the network side device, and processes it to the processor 810; in addition, sends the uplink data to the network side device. Generally, the radio frequency unit 801 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 809 can be used to store software programs or instructions as well as various data. The memory 809 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.) and the like. In addition, the memory 809 may include a high-speed random access memory, and may also include a nonvolatile memory, wherein the nonvolatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

The processor 810 may include one or more processing units; optionally, the processor 810 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 810 .

Wherein, the radio frequency unit 801 or the processor 810 is configured to perform evaluation of cell selection or reselection when the relay has been connected to the remote terminal;

Optionally, after the relay performs cell selection or reselection evaluation, the radio frequency unit 801 or the processor 810 is further configured to perform at least one of the following:

reserving a unicast link between the relay and the remote terminal;

Notifying the remote terminal of the identity of the cell selected or reselected by the relay.

Optionally, after the relay performs cell selection or reselection evaluation, the radio frequency unit 801 is further configured to:

sending a request message to the remote terminal, where the request message is used to request the remote terminal to confirm whether to perform a cell selection or reselection process;

The performing cell selection or reselection when the relay determines that the conditions for cell selection or reselection are met includes:

When the relay determines that the conditions for cell selection or reselection are met, and the remote terminal confirms to perform a cell selection or reselection process, perform cell selection or reselection.

The relay in the embodiment of the present application can improve the communication reliability of the terminal.

Specifically, the relay in this embodiment of the present invention also includes: instructions or programs stored in the memory 809 and operable on the processor 810, and the processor 810 calls the instructions or programs in the memory 809 to execute the modules shown in FIG. method, and achieve the same technical effect, in order to avoid repetition, it is not repeated here.

It should be noted that in the embodiment corresponding to FIG. 8 , the relay terminal is used as an example for illustration, and the specific structure of the relay is not limited in the embodiment of the present application. For example, the relay may also be a special relay device or relay node.

The embodiment of the present application also provides a readable storage medium. The readable storage medium stores programs or instructions. When the program or instructions are executed by the processor, the various processes of the above-mentioned cell evaluation method embodiments can be realized, and the same To avoid repetition, the technical effects will not be repeated here.

Wherein, the processor is the processor in the terminal described in the foregoing embodiments. The readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.

The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above cell evaluation method embodiment Each process can achieve the same technical effect, so in order to avoid repetition, it will not be repeated here.

It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.

The embodiment of the present application also provides a computer program product, which is stored in a readable storage medium, and the computer program product is executed by at least one processor to implement the various processes in the above embodiment of the cell evaluation method, and can achieve the same technology Effect, in order to avoid repetition, will not repeat them here.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims

A community assessment method, comprising:

In the first state, the remote terminal performs evaluation of cell selection or reselection;

Wherein, in the first state, the remote terminal has completed relay selection or reselection, or, in the first state, the remote terminal has connected to a relay.
The method of claim 1, wherein said performing evaluation of cell selection or reselection comprises:

the remote terminal performs an evaluation of cell selection or reselection based on a direct link; or

the remote terminal performs an evaluation of cell selection or reselection based on an indirect link; or

The remote terminal performs evaluation of cell selection or reselection based on direct and indirect links.
The method of claim 2, wherein said remote terminal performs evaluation of cell selection or reselection based on a direct link, comprising:

The remote terminal performs cell selection or reselection evaluation based on first system information and a first measurement result, where the first system information is system information received by the remote terminal based on a direct link, and the The first measurement result is a measurement result of the remote terminal based on direct link measurement.
The method according to claim 3, wherein the remote terminal performs evaluation of cell selection or reselection based on the first system information and the first measurement result, comprising:

The remote terminal performs cell selection or reselection evaluation based on the first system information and the first measurement result under the first condition, where the first condition includes at least one of the following:

The remote terminal is within the coverage of the cell;

The remote terminal can receive system information related to cell selection or reselection.
The method of claim 2, wherein the remote terminal performs evaluation of cell selection or reselection based on an indirect link, comprising:

The remote terminal performs cell selection or reselection evaluation based on the second system information and the second measurement result, wherein the second system information is the relay forwarding obtained by the remote terminal based on an indirect link system information, the second measurement result is the measurement result of the relay measurement obtained by the remote terminal based on the indirect link.
The method according to claim 5, wherein the remote terminal performs evaluation of cell selection or reselection based on the second system information and the second measurement result, comprising:

The remote terminal performs cell selection or reselection evaluation based on the second system information and the second measurement result under the second condition, wherein the second condition includes at least one of the following:

The remote terminal is outside the coverage of the cell;

The remote terminal cannot receive system information related to cell selection or reselection based on the direct link.
The method according to claim 2, wherein said remote terminal performs evaluation of cell selection or reselection based on direct link and indirect link, comprising:

The remote terminal performs evaluation of cell selection or reselection based on third system information and a third measurement result, wherein the third system information is the relay forwarding obtained by the remote terminal based on an indirect link system information, the third measurement result is the measurement result of the remote terminal based on the direct link measurement.
The method according to claim 7, wherein the remote terminal performs evaluation of cell selection or reselection based on the third system information and the third measurement result, comprising:

The remote terminal performs evaluation of cell selection or reselection based on the third system information and the third measurement result under the third condition, wherein the third condition includes at least one of the following:

The remote terminal is outside the coverage of the cell;

The remote terminal cannot receive system information related to cell selection or reselection based on the direct link.
The method according to any one of claims 2 to 8, wherein said method further comprises:

If the remote terminal determines that the conditions for cell selection or reselection are satisfied, the remote terminal continues to camp on the indirect link between the remote terminal and the relay; or

When the remote terminal determines that conditions for cell selection or reselection are met, the remote terminal performs cell selection or reselection, camps on the direct link, and performs at least one of the following:

Notifying the relay that the remote terminal has performed cell selection or reselection;

triggering the release of the unicast link between the remote terminal and the relay;

When the selected or reselected cell is in a different tracking area TA or radio access network notification area RNA than the relay-connected serving cell, trigger the corresponding tracking area update TAU or radio access network notification area update RNAU process;

In the case that the selected or reselected cell does not belong to the TA or RNA of the remote terminal, a corresponding TAU or RNAU process is triggered.
The method according to claim 2, 5 or 6, wherein said method further comprises:

When the remote terminal determines that the conditions for cell selection or reselection are met, perform at least one of the following:

Notifying the relay to perform cell selection or reselection;

sending to the relay the identity of a target cell for cell selection or reselection by the relay;

reserving a unicast link between the remote terminal and the relay;

In the case that the selected or reselected cell does not belong to the TA or RNA of the remote terminal, a corresponding TAU or RNAU process is triggered.
The method according to claim 2, 5 or 6, wherein said method further comprises:

When the remote terminal determines that the conditions for cell selection or reselection are met, perform at least one of the following:

performing relay selection or reselection, wherein the serving cell of the selected or reselected relay is a target neighboring cell, wherein the target neighboring cell is a neighboring cell determined to perform cell selection or reselection;

In the case that the selected or reselected cell does not belong to the TA or RNA of the remote terminal, a corresponding TAU or RNAU process is triggered.
The method according to any one of claims 1 to 8, wherein said method further comprises:

In the second state, the remote terminal performs relay selection or reselection evaluation, and does not perform cell selection or reselection evaluation, wherein the second state includes at least one of the following:

The remote terminal is outside the coverage of the cell;

The remote terminal cannot receive system information related to cell selection or reselection from the direct link.
The method according to any one of claims 1 to 8, wherein, in the first state, the remote terminal has connected to the relay includes at least one of the following:

The remote terminal has established a radio resource control RRC connection with the relay;

When the remote terminal is in an idle state or an inactive state, the remote terminal is connected to the relay.
The method according to claim 13, wherein said remote terminal has established an RRC connection with said relay, comprising:

The remote terminal has established an RRC connection with the relay, and the relay has established a Uu connection.
A community assessment method, comprising:

In the case that the relay is connected to the remote terminal, the relay performs evaluation of cell selection or reselection;

When the relay determines that the conditions for cell selection or reselection are met, the relay performs cell selection or reselection;

Wherein, notifying the remote terminal that the relay has performed cell selection or reselection after performing cell selection or reselection; or, receiving confirmation from the remote terminal after performing cell selection or reselection executed afterwards.
The method according to claim 15, wherein, after the step of performing the evaluation of cell selection or reselection by the relay, the method further comprises at least one of the following:

The relay reserves a unicast link between the relay and the remote terminal;

The relay notifies the remote terminal of the identity of the cell selected or reselected by the relay.
The method of claim 15, wherein after the step of the relay performing the evaluation of cell selection or reselection, the method further comprises:

The relay sends a request message to the remote terminal, where the request message is used to request the remote terminal to confirm whether to perform a cell selection or reselection process;

When the relay determines that the conditions for cell selection or reselection are met, the relay performs cell selection or reselection, including:

When the relay determines that a cell selection or reselection condition is satisfied, and the remote terminal confirms to perform a cell selection or reselection process, the relay performs cell selection or reselection.
A cell evaluation device, the remote terminal includes the device, including:

A first execution module, configured to perform evaluation of cell selection or reselection in the first state;

Wherein, in the first state, the remote terminal has completed relay selection or reselection, or, in the first state, the remote terminal has connected to a relay.
The apparatus of claim 18, wherein said performing evaluation of cell selection or reselection comprises:

the remote terminal performs an evaluation of cell selection or reselection based on a direct link; or

the remote terminal performs an evaluation of cell selection or reselection based on an indirect link; or

The remote terminal performs evaluation of cell selection or reselection based on direct and indirect links.
The apparatus of claim 19, wherein the remote terminal performs evaluation of cell selection or reselection based on a direct link, comprising:

The remote terminal performs cell selection or reselection evaluation based on first system information and a first measurement result, where the first system information is system information received by the remote terminal based on a direct link, and the The first measurement result is a measurement result of the remote terminal based on direct link measurement.
The apparatus according to claim 20, wherein the remote terminal performs evaluation of cell selection or reselection based on the first system information and the first measurement result, comprising:

The remote terminal performs cell selection or reselection evaluation based on the first system information and the first measurement result under the first condition, wherein the first condition includes at least one of the following:

The remote terminal is within the coverage of the cell;

The remote terminal can receive system information related to cell selection or reselection.
The apparatus of claim 19, wherein the remote terminal performs evaluation of cell selection or reselection based on an indirect link, comprising:

The remote terminal performs cell selection or reselection evaluation based on the second system information and the second measurement result, wherein the second system information is the relay forwarding obtained by the remote terminal based on an indirect link system information, the second measurement result is the measurement result of the relay measurement obtained by the remote terminal based on the indirect link.
The apparatus according to claim 22, wherein the remote terminal performs evaluation of cell selection or reselection based on the second system information and the second measurement result, comprising:

The remote terminal performs cell selection or reselection evaluation based on the second system information and the second measurement result under the second condition, wherein the second condition includes at least one of the following:

The remote terminal is outside the coverage of the cell;

The remote terminal cannot receive system information related to cell selection or reselection based on the direct link.
The apparatus of claim 19, wherein the remote terminal performs evaluation of cell selection or reselection based on direct links and indirect links, comprising:

The remote terminal performs evaluation of cell selection or reselection based on third system information and a third measurement result, wherein the third system information is the relay forwarding obtained by the remote terminal based on an indirect link system information, the third measurement result is the measurement result of the remote terminal based on the direct link measurement.
The apparatus according to claim 24, wherein the remote terminal performs evaluation of cell selection or reselection based on the third system information and the third measurement result, comprising:

The remote terminal performs evaluation of cell selection or reselection based on the third system information and the third measurement result under the third condition, wherein the third condition includes at least one of the following:

The remote terminal is outside the coverage of the cell;

The remote terminal cannot receive system information related to cell selection or reselection based on the direct link.
The device according to any one of claims 19 to 25, wherein the device further comprises:

The first camping module is configured to continue to camp on the indirect link between the remote terminal and the relay when the remote terminal determines that the conditions for cell selection or reselection are met; or

The second camping module is configured to perform cell selection or reselection when the remote terminal determines that the conditions for cell selection or reselection are met, camp on the direct link, and perform at least one of the following :

Notifying the relay that the remote terminal has performed cell selection or reselection;

triggering the release of the unicast link between the remote terminal and the relay;

When the selected or reselected cell is in a different tracking area TA or radio access network notification area RNA than the relay-connected serving cell, trigger the corresponding tracking area update TAU or radio access network notification area update RNAU process;

In the case that the selected or reselected cell does not belong to the TA or RNA of the remote terminal, a corresponding TAU or RNAU process is triggered.
The device of claim 19, 22 or 23, wherein the device further comprises:

The second execution module is configured to execute at least one of the following when the remote terminal determines that the conditions for cell selection or reselection are met:

Notifying the relay to perform cell selection or reselection;

sending to the relay the identity of a target cell for cell selection or reselection by the relay;

reserving a unicast link between the remote terminal and the relay;

In the case that the selected or reselected cell does not belong to the TA or RNA of the remote terminal, a corresponding TAU or RNAU process is triggered.
The device of claim 19, 22 or 23, wherein the device further comprises:

The third execution module is configured to execute at least one of the following when the remote terminal determines that the conditions for cell selection or reselection are met:

performing relay selection or reselection, wherein the serving cell of the selected or reselected relay is a target neighboring cell, wherein the target neighboring cell is a neighboring cell determined to perform cell selection or reselection;

In the case that the selected or reselected cell does not belong to the TA or RNA of the remote terminal, a corresponding TAU or RNAU process is triggered.
The device according to any one of claims 18 to 25, wherein the device further comprises:

An evaluation module, configured for the remote terminal to perform evaluation of relay selection or reselection in a second state, and not perform evaluation of cell selection or reselection, wherein the second state includes at least one of the following:

The remote terminal is outside the coverage of the cell;

The remote terminal cannot receive system information related to cell selection or reselection from the direct link.
The apparatus according to any one of claims 18 to 25, wherein the remote terminal connected to the relay in the first state includes at least one of the following:

The remote terminal has established a radio resource control RRC connection with the relay;

When the remote terminal is in an idle state or an inactive state, the remote terminal is connected to the relay.
The apparatus according to claim 30, wherein the remote terminal has established an RRC connection with the relay, comprising:

The remote terminal has established an RRC connection with the relay, and the relay has established a Uu connection.
A cell evaluation device, the relay includes the device, including:

A first executing module, configured to execute evaluation of cell selection or reselection when the relay is already connected to the remote terminal;

A second executing module, configured to execute cell selection or reselection when the relay determines that the conditions for cell selection or reselection are satisfied;

Wherein, notifying the remote terminal that the relay has performed cell selection or reselection after performing cell selection or reselection; or, receiving confirmation from the remote terminal after performing cell selection or reselection executed afterwards.
The apparatus of claim 32, wherein the apparatus further comprises at least one of the following:

a reservation module, configured to reserve the unicast link between the relay and the remote terminal;

A notification module, configured to notify the remote terminal of the identity of the cell selected or reselected by the relay.
The apparatus of claim 32, wherein said apparatus further comprises:

A sending module, configured to send a request message to the remote terminal, where the request message is used to request the remote terminal to confirm whether to perform a cell selection or reselection process;

The second execution module is configured to perform cell selection or reselection when the relay determines that the conditions for cell selection or reselection are met, and the remote terminal confirms to perform a cell selection or reselection process.
A terminal, the terminal is a remote terminal, including a processor, a memory, and a program or instruction stored in the memory and operable on the processor, wherein the program or instruction is executed by the processor When executed, the steps of the cell evaluation method according to any one of claims 1 to 14 are realized.
A relay, comprising a processor, a memory, and a program or instruction stored in the memory and operable on the processor, wherein the program or instruction is executed by the processor to achieve claim 15 Steps of the cell evaluation method described in any one of 17 to 17.
A readable storage medium, on which a program or instruction is stored, wherein, when the program or instruction is executed by a processor, the steps of the cell evaluation method according to any one of claims 1 to 14 are implemented, Alternatively, when the program or instructions are executed by the processor, the steps of the cell evaluation method according to any one of claims 15 to 17 are implemented.
A chip, the chip includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a network device program or instruction to implement any one of claims 1 to 17 The steps of the cell evaluation method.
A computer program product stored in a non-volatile storage medium, wherein the computer program product is executed by at least one processor to implement the cell according to any one of claims 1 to 17 Steps in the evaluation method.