CN114430579B - Information processing method and device, terminal and storage medium - Google Patents

Abstract

The application discloses an information processing method, which comprises the following steps: verifying the validity of the first candidate cell; acquiring a first candidate cell with a valid verification result from the first candidate cell to obtain at least one second candidate cell; and performing measurement evaluation on the at least one second candidate cell. The embodiment of the application also provides an information processing device, a terminal and a storage medium.

Description

Information processing method and device, terminal and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to an information processing method and apparatus, a terminal, and a storage medium.

Background

In a communication system, a network device maintains continuity of communication traffic of a terminal device through a Handover (HO) procedure, i.e., a communication packet of the terminal device is handed over from a source network device (e.g., a source base station) to a target network device (e.g., a target base station) as smoothly as possible. Currently, the fifth generation mobile communication (5th Generation,5G) technology starts to study condition switching (Conditional Handover, CHO), in which a terminal device does not switch immediately after receiving a condition switching command, but switches after the condition attached to the condition switching command is satisfied.

Under the CHO scene, after the terminal equipment receives the conditional switch command, the measurement and evaluation of the candidate cell are carried out according to the measurement configuration in the conditional switch command, and after the measurement and evaluation result of the candidate cell meets the switch execution condition of the corresponding candidate cell, the terminal equipment executes the switch according to the conditional switch command received before. In CHO, how to reduce power consumption when a terminal device performs measurement and evaluation on a candidate cell and how to improve performance of the terminal device are problems to be solved.

Disclosure of Invention

In view of this, the present application provides an information processing method and apparatus, a device, and a storage medium.

The technical scheme of the application is realized as follows:

In a first aspect, there is provided an information processing method including:

verifying the validity of the first candidate cell;

Acquiring a first candidate cell with a valid verification result from the first candidate cell to obtain at least one second candidate cell;

And performing measurement evaluation on the at least one second candidate cell.

In a second aspect, there is provided an information processing apparatus comprising:

A verification unit configured to verify validity of the first candidate cell;

An obtaining unit configured to obtain a first candidate cell with a valid verification result from a plurality of first candidate cells, and obtain at least one second candidate cell;

an evaluation unit configured to perform measurement evaluation on the at least one second candidate cell.

In a third aspect, a chip is provided, comprising: a processor for calling and running a computer program from a memory, causing a device comprising said chip to perform the method of the first aspect.

In a fourth aspect, a terminal device is provided, the terminal device comprising a processor; the processor is configured to: verifying the validity of the first candidate cell; acquiring a first candidate cell with a valid verification result from the first candidate cell to obtain at least one second candidate cell; and performing measurement evaluation on the at least one second candidate cell.

In a fifth aspect, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, implements the steps of the above-described information processing method.

The information processing method provided by the embodiment of the application specifically includes that the terminal equipment verifies the validity of a first candidate cell; acquiring a first candidate cell with a valid verification result from the first candidate cell to obtain at least one second candidate cell; and performing measurement evaluation on the at least one second candidate cell. In this way, the terminal equipment prescribes the execution stage of validity verification, and measurement and evaluation of candidate cells which are invalid to be configured are avoided, so that the power consumption of the terminal equipment is effectively reduced, and the performance of the terminal equipment is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is evident that the drawings in the following description are only some embodiments of the present application and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.

Fig. 1 is a schematic flow chart of a handover process in the related art according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a CHO process in the related art according to an embodiment of the present application;

FIG. 3 is a schematic diagram of an exemplary network architecture according to an embodiment of the present application;

Fig. 4 is a schematic flow chart of an information processing method according to an embodiment of the present application;

Fig. 5 is a schematic flow chart of an information processing method according to an embodiment of the present application;

Fig. 6 is a schematic flow chart of an information processing method according to an embodiment of the present application;

Fig. 7 is a schematic diagram of a subsequent processing flow of conditional switching according to an embodiment of the present application;

Fig. 8 is a schematic structural diagram of an information processing apparatus according to an embodiment of the present application;

Fig. 9 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

Fig. 10 is a schematic structural diagram of a chip according to an embodiment of the present application.

Detailed Description

For a more complete understanding of the nature and the technical content of the embodiments of the present application, reference should be made to the following detailed description of embodiments of the application, taken in conjunction with the accompanying drawings, which are meant to be illustrative only and not limiting of the embodiments of the application.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

It should be understood that the technical solution of the embodiment of the present application may be applied to a New Radio (NR) system or a future communication system, and may also be applied to other various wireless communication systems, for example: narrowband internet of things (NB-IoT) systems, global system for mobile communications (Global System of Mobile communication, GSM), enhanced data rates for GSM evolution (ENHANCED DATA RATE for GSM Evolution, EDGE) systems, wideband code Division multiple access (Wideband Code Division Multiple Access, WCDMA) systems, code Division multiple access 2000 (Code Division Multiple Access, CDMA 2000) systems, time Division multiple access (Time Division-Synchronization Code Division Multiple Access, TD-SCDMA) systems, general packet Radio Service (GENERAL PACKET Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) systems, LTE frequency Division duplex (Frequency Division Duplex, FDD) systems, LTE Time Division duplex (Time Division Duplex, TDD), universal mobile telecommunication system (Universal Mobile Telecommunication System, UMTS), and the like.

The 5G supported NR system is similar to the LTE system, and supports the handover procedure. When a user using a network service moves from one cell to another cell, or due to radio traffic load adjustment, active operation maintenance, equipment failure, etc., the system transfers the communication link between the user and the source cell (i.e., the source network device) to the new cell (i.e., the target network device), i.e., performs a handover procedure, in order to ensure the continuity of communication and the quality of service. In general, there may be multiple network devices near the terminal device, where the terminal device may select a cell to camp on according to the service quality value (such as signal quality) of the cell where each network device is located, where the service quality values of the cells where different network devices are located may be different, and where the terminal device typically camps on a cell with better service quality.

Referring to fig. 1, a flow diagram of a conventional handover is provided, including: the source network device instructs the terminal device which cell to switch to and how to switch by sending a handover message. Specifically, the source network device (the network device to which the cell to which the terminal device is currently connected belongs, that is, the network device to which the cell to which the terminal device is connected before switching (the source cell) belongs) sends a switching message to the terminal device, so as to control the terminal device to switch from the source cell to the target cell (that is, the network device to which the target cell belongs). The handover message may be an RRC message, for example, in an NR system, the RRC message may be an RRC reconfiguration message carrying a synchronization reconfiguration cell (reconfiguration with sync), and in an LTE system, the RRC message may be an RRC connection reconfiguration message carrying a mobility control information cell (mobility control info). After receiving the handover message sent by the source network device, the terminal device can access the target cell according to the identity information of the target cell contained in the handover message and related configuration parameters required by the terminal device to access the target cell.

In order to solve some typical drawbacks of the conventional handover, such as that the network device does not receive the measurement report sent by the terminal device, the handover command fails to be received, resulting in handover to an unstable cell, etc., the 3GPP is currently discussing to introduce a handover procedure based on conditional triggering for LTE and NR systems. Here, the condition-triggered based handover procedure is specifically referred to as CHO, and may also be referred to as preconfigured handover.

Referring to FIG. 2, the CHO mechanism includes the following steps: the source network device sends the condition reconfiguration information to the terminal device in advance through the RRC reconfiguration message, and typically, the configuration information (condition handover command) of the plurality of candidate cells and handover execution conditions of the corresponding candidate cells are configured in the condition reconfiguration adding and modifying list in the condition reconfiguration information. After receiving the RRC reconfiguration message including the conditional reconfiguration cell, the terminal device performs measurement and evaluation of the candidate cell according to measurement configuration in the RRC reconfiguration message, and after the measurement and evaluation result of the candidate cell meets the handover execution condition of the corresponding candidate cell, the terminal device performs handover according to the conditional handover command received previously.

It should be understood that fig. 2 is only an example of CHO, and that embodiments of the present application may have more or fewer steps than those shown in fig. 2, i.e., some steps may be skipped from being performed, some steps may be added, or other modifications may be supported, which are not limited in this respect.

In the CHO mechanism, the source network device sends CHO configuration information to the terminal device in advance under the condition of good communication quality of the source link, so that the success rate of sending the CHO configuration information is ensured, the success rate of switching is further improved, and the time for interrupting user data transmission due to switching failure is effectively reduced.

However, in the CHO mechanism, whether the validity verification of the conditional reconfiguration cell in RRC reconfiguration by the terminal device is performed when the RRC reconfiguration message is received or performed in CHO execution phase, and how the terminal device is to process when the validity verification of the conditional reconfiguration cell fails, the 3gpp ts38.331 protocol does not specify, but only notes that depending on the specific implementation of the terminal device, the following situations of potential user experience degradation and resource waste due to the uncertainty are introduced:

(1) When the RRC reconfiguration message is received, the terminal equipment does not carry out validity verification on the configuration of the candidate cell, so that the terminal equipment also carries out handover measurement evaluation on the candidate cell which is not configured;

(2) After the validity verification of the configuration of the candidate cell fails, the terminal equipment directly considers the RRC reconfiguration message as invalid configuration, so that an unnecessary RRC connection reestablishment process is caused;

(3) After the configuration of the candidate cells fails to be validated, the terminal equipment directly discards the configuration information of all the candidate cells in the conditional switching command, thereby wasting the opportunity of one-time conditional switching;

(4) After the validity verification of the configuration of a certain candidate cell fails, the terminal equipment directly discards the measurement configuration of the same measurement identifier in the measurement configuration, and the terminal equipment cannot perform measurement evaluation after receiving the increment configuration containing the validity of the candidate cell.

Therefore, in order to solve the above-mentioned problems, an embodiment of the present application provides an information processing method, please refer to fig. 3, fig. 3 is a schematic structural diagram of an application environment of the embodiment of the present application, and as shown in fig. 3, the information processing method includes a terminal device 31, a source network device 32 and a target network device 33. Each network device may have one or more cells, and the handover of the terminal device 31 may be a handover between multiple cells in the same network device, or may refer to a handover between cells belonging to different network devices, or may refer to a handover in a serving cell, or the like.

The terminal device 31, which may also be referred to as a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), etc., may be referred to as a device for providing voice and/or data connectivity to a user.

By way of example, the terminal device may comprise a handheld device having wireless connectivity, or a processing device connected to a wireless modem. Or the terminal device may include a User Equipment (UE), a wireless terminal device, a mobile terminal device, an internet of things (IoT) terminal device, an Access Point (AP), a remote terminal (remote), an access terminal (ACCESS TERMINAL), a user terminal (user terminal), and so on. Or the terminal device may also comprise a mobile phone, a computer with a mobile terminal device, a portable, pocket, hand-held, a mobile device built into a computer, etc. Or the terminal device may include a personal communication services (personal communication service, PCS) phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wirelesslocal loop, WLL) station, a Personal Digital Assistant (PDA) or the like. Or the terminal device may also comprise a limited device, such as a device with lower power consumption, or a device with limited storage capacity, or a device with limited computing capacity, etc. The terminal device may also include information sensing devices such as bar codes, radio frequency identification (radio frequency identification, RFID), sensors, global positioning system (global positioning system, GPS), laser scanners, etc. The terminal device may also be a wearable device, an in-vehicle terminal device or a relay. That is, devices capable of data communication with the base station can be regarded as terminal devices. The specific type of the terminal device 31 is not limited in the embodiment of the present application.

A network device refers to a device in an access network that communicates over the air with wireless terminal devices via one or more cells. The network device may be a node in a radio access network, also referred to as a base station, and also referred to as a radio access network (radio access network, RAN) node (or device).

For example, in some embodiments, the network device may be: a gNB, a transmission reception point (transmission reception point, TRP), an evolved Node B (eNB), a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a base station controller (basestation controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (e.g., home evolved NodeB, or home Node B, HNB), a baseband unit (BBU), or a wireless fidelity (WIRELESS FIDELITY, wifi) Access Point (AP), etc. In addition, in one network architecture, the network device may include a centralized unit (centralized unit, CU) node and a distributed unit (distributedunit, DU) node, the CU implementing part of the functionality of the gNB, the DU implementing part of the functionality of the gNB.

The information processing method provided by the embodiment of the application specifically includes that after the terminal equipment obtains the first information comprising at least one candidate cell, validity verification is performed on each candidate cell based on the first information of the candidate cell, and then measurement evaluation is performed on at least one candidate cell with valid verification results. In this way, the terminal equipment prescribes an execution stage of validity verification, and only the candidate cells with valid configuration are measured and evaluated, so that the measurement and evaluation of the candidate cells with invalid configuration are avoided, the power consumption of the terminal equipment is effectively reduced, and the performance of the terminal equipment is improved.

An embodiment of the present application provides an information processing method applied to a terminal device 31 in a communication system shown in fig. 3, as shown in fig. 4, the information processing method including the steps of:

Step 401, verifying the validity of the first candidate cell.

In the embodiment of the present application, the number of the first candidate cells is not limited, and there may be one or more first candidate cells.

It should be noted that, the information processing method implemented by the terminal device described in the embodiment of the present application may also be implemented by a component of the terminal device, for example, a processing chip, a circuit, and other components in the terminal device.

In some embodiments, step 401 may be implemented by performing steps 4011 through 4012 as follows:

step 4011, receiving first information corresponding to a first candidate cell; the first information includes cell configuration information of a first candidate cell.

Wherein, the first information can be sent to the terminal equipment through the high-layer signaling. For example, the first information may be an RRC reconfiguration (RRC Reconfiguration, RRC reconfig) message that may be sent by the source network device to the terminal device when the source link quality is good, where the first information includes CHO trigger conditions and cell configuration information of one or more candidate cells.

As an example, the source network device may send CHO configuration information to the terminal device through an RRC reconfiguration message.

Specifically, in the NR system, the RRC message may be an RRC reconfiguration message carrying a synchronization reconfiguration cell (reconfiguration with sync), and in the LTE system, the RRC message may be an RRC connection reconfiguration message carrying a mobility control information cell (mobility control info); the RRC message may also be a conditional RRC reconfiguration message (e.g., cond RRC reconfiguration), or other naming/expression, without limitation.

The first information of the at least one candidate cell includes at least one of: physical cell identity (PHYSICAL CELL IDENTIFIER, PCI) of the candidate cell, frequency point corresponding to the candidate cell, cell radio network temporary identity allocated to the terminal device by the candidate cell, random access channel RACH resource information required for accessing the candidate cell (the random access channel RACH resource information required for accessing the candidate cell may include dedicated RACH resource information and/or common RACH resource information, etc.), and index of the candidate cell. Of course, in other embodiments, the first information of the candidate cell may further include other information not mentioned, which is not limited by the embodiment of the present application.

Step 4012, the first candidate cell is verified according to the first information, and a verification result is obtained.

Here, the validity verification of the candidate cell may be achieved by matching the first information of the first candidate cell with a specification in the 3gpp ts38.331 protocol, and checking whether there is missing information or redundant information. For example, the configuration information of the radio resource included in the first information of the first candidate cell is verified, and when the configuration information of the radio resource of the first candidate cell matches a predetermined value in the 3gpp ts38.331 protocol (the first information of the first candidate cell is specifically expressed as having no missing part of information and no redundant information included), the verification result of the first candidate cell is determined to be valid.

Step 402, obtaining a first candidate cell with a valid verification result from the first candidate cell, so as to obtain at least one second candidate cell;

at step 403, measurement evaluation is performed on at least one second candidate cell.

In some embodiments, the first candidate cell has second information associated therewith for measurement evaluation of cell handover by the terminal device for the first candidate cell. The second information and the first information are issued by the source network device together with the first information to the terminal device through the higher layer signaling. For example, the first information and the second information may be carried through an RRC reconfiguration message.

The second information includes at least one of: measuring objects, measuring identifications and reporting configurations.

In a possible embodiment, the source network device informs the terminal device of the second information through the conditional reconfiguration cell carried by the RRC reconfiguration message, where the second information includes an object that the terminal device needs to measure, a candidate cell list, a reporting manner, a measurement identifier, an event parameter, and the like.

It should be understood that in the CHO scenario in the related art, it is not specifically specified whether the terminal device is to verify the validity of the first information of the candidate cell, nor is it specifically specified the execution phase of the validity verification. In order to solve the problem, in the embodiment of the present application, a stage of verifying the validity of the first information of the first candidate cell by the terminal device (that is, verifying the validity of the first candidate cell before performing measurement and evaluation on the first candidate cell) is described, and the terminal device performs measurement and evaluation only on at least one second candidate cell whose verification result is valid, thereby effectively reducing the power consumption of the terminal device and improving the performance of the terminal device.

In addition, each time the terminal device performs measurement evaluation on at least one second candidate cell whose verification result is valid, the terminal device may use "polling" evaluation, or may use "one-time" evaluation. Wherein, the "polling type" evaluation means that each time the terminal device performs measurement evaluation in one or more second candidate cells whose verification results are valid, the second candidate cell used for measurement evaluation may be a second candidate cell that has been previously measured and evaluated; by "one-time" evaluation is meant that the second candidate cell for measurement evaluation does not repeat the second candidate cell that has been previously measured and evaluated each time the terminal device performs measurement evaluation in the second candidate cell for which one or more verification results are valid.

For example, the second candidate cell with the valid verification result is candidate cell a and candidate cell B, if the terminal device determines that the measurement evaluation of the candidate cell a fails previously, the candidate cell a may be continuously evaluated when the evaluation is performed subsequently, that is, the "polling" judgment is performed. If the terminal equipment determines that the measurement evaluation of the candidate cell A fails, the measurement evaluation of the candidate cell A is not carried out later, and the judgment is one-time.

When the terminal device performs measurement evaluation on the second candidate cells with valid one or more verification results, the terminal device may perform measurement evaluation on one second candidate cell in the one or more second candidate cells, or may perform measurement evaluation on a plurality of second candidate cells in the one or more second candidate cells at the same time, which is not limited in the embodiment of the present application.

In some embodiments, the terminal device may further perform the following steps after step 403:

after the measurement and evaluation result of the terminal equipment on the target candidate cell accords with the switching condition, switching the candidate cell from the source cell to the first target candidate cell; the target candidate cell includes a first target candidate cell.

In the embodiment of the present application, the target candidate cells according with the measurement evaluation result may include one or more target candidate cells, and when the target candidate cells include only one candidate cell (i.e., the first target candidate cell), the target candidate cells may be directly switched to the first target candidate cell. When the target candidate cell includes only a plurality of candidate cells, the terminal device may select the first target candidate cell for handover. The first target candidate cell may be any one of target candidate cells, or may select a cell from the target candidate cells passing through measurement evaluation according to a certain rule as a target candidate cell of final handover, for example, a cell with highest cell signal quality in the target candidate cells with successful measurement evaluation is determined as a target candidate cell of final handover, or a cell with highest priority (such as highest frequency priority) in the target candidate cells with successful measurement evaluation is determined as a target candidate cell of final handover, or a target candidate cell of final handover is determined by other means, or a rule is not set, and how to implement the method is determined by the terminal device.

It should be understood that, the embodiments of the present application are not limited with respect to whether the terminal device is to maintain data transmission with the source cell after the handover is successful (e.g., the terminal device successfully accesses the target candidate cell, or, e.g., the RACH procedure of the terminal device and the target candidate cell is successful, or, e.g., the terminal device sends an RRC reconfiguration complete message to the target candidate cell). For example, after a successful handover, the terminal device may maintain data transmission with the source cell, or the terminal device may stop data transmission with the source cell.

In an embodiment of the present application, referring to a flowchart shown in fig. 5, an information processing method provided in an embodiment of the present application may include the following steps:

step 501, receiving first information corresponding to a first candidate cell; the first information comprises cell configuration information of a first candidate cell;

step 502, verifying the first candidate cell according to the first information to obtain a verification result;

Here, in the case where it is determined that the first candidate cell is a valid candidate cell based on the first information, step 503 is performed; in case it is determined that the first candidate cell is an invalid candidate cell based on the first information, step 504 is performed.

The first candidate cell has second information associated with it, which is used for measurement evaluation of cell handover by the terminal device for the first candidate cell.

And step 503, marking the second information corresponding to the first candidate cell as available.

The second information and the at least one candidate cell with the effective verification result have an association relationship, and the association relationship can be a one-to-one correspondence relationship, namely, one second information corresponds to one candidate cell with the effective verification result; or a pair of correspondence relation, that is, a second information corresponds to a plurality of candidate cells with valid verification results; the present application may also be a many-to-one correspondence, that is, a plurality of second information corresponds to a candidate cell whose verification result is valid, and the association is not specifically limited in the embodiment of the present application.

Here, the second information having an association relationship with the candidate cell whose verification result is valid may also be marked as an available state, and then measurement evaluation may be performed on the candidate cell whose verification result is valid based on the second information marked as an available state.

When the second information is subjected to state marking, in some embodiments, the second information with an association relationship with the first information can be directly searched according to the first information of the candidate cell with the valid verification result; in other embodiments, the second information having a mapping relationship with the measurement identifier may be searched according to the identifier in the first information of the candidate cell whose verification result is valid, and then the second information is marked as an available state.

Illustratively, the terminal device performs measurement evaluation (e.g., performs measurement on the neighbor cell, etc.) on the candidate cell whose verification result corresponding to the second information is valid according to the second information (measurement object, measurement identifier, reporting configuration, etc.) marked as the available state in the RRC reconfiguration information. After the terminal equipment finishes the measurement evaluation of the candidate cells with valid verification results, the source network equipment receives a measurement report (measurement report) sent by the terminal equipment, determines a configurable target candidate cell for CHO according to the measurement report sent by the terminal equipment, and can sort the cell signal quality of the candidate cells with valid verification results according to the reference signal received power (REFERENCE SIGNAL receivingpower, RSRP) and/or the reference signal received quality (REFERENCE SIGNAL RECEIVING quality, RSRQ) carried by the channel quality in the measurement report under the condition that the measurement evaluation of a plurality of candidate cells with valid verification results is successful, and selects one or more candidate cells with high signal quality and valid verification results as the target candidate cell.

And step 504, marking the second information corresponding to the invalid first candidate cell as an unavailable state, and deleting the first information corresponding to the invalid first candidate cell.

Here, when the verification result of the first information of the first candidate cell is invalid (which is embodied as that part of the first information of the first candidate cell is missing and/or redundant information is included), the first candidate cell is determined to be an invalid candidate cell.

It should be understood that in the CHO scenario in the related art, it is not specifically specified how the terminal device should continue to process after the validity verification of the first information of the candidate cell fails, so it may directly discard the first information of the candidate cell that fails to verify in the conditional access command, which results in that the terminal device cannot perform measurement evaluation after subsequently receiving the valid third information including the invalid candidate cell, and thus wastes the opportunity of a conditional access.

Based on this, in the embodiment of the present application, it is specified how the terminal device is to process, that is, delete, the first information of the invalid candidate cell and mark the second information having an association relationship with the first information of the invalid candidate cell as an unavailable state when the validity verification fails. In this way, on one hand, the terminal equipment does not need to measure and evaluate the corresponding invalid candidate cells based on the second information marked as the unavailable state, so that the power consumption of the terminal equipment is effectively reduced, and the performance of the terminal equipment is improved; on the other hand, the second information with the association relation with the first information of the invalid candidate cell is marked as an unavailable state, instead of directly identifying the second information as invalid configuration, an unnecessary RRC connection reestablishment process is not caused, and after the terminal device subsequently receives valid third information including the invalid candidate cell, measurement evaluation can be continuously performed on the candidate cell based on the second information which is not discarded, so that the opportunity of wasting conditional switching is avoided.

In some embodiments, after deleting the first information of the invalid first candidate cell, when the terminal device subsequently receives the third information including the invalid candidate cell again, the processing manner is as follows:

acquiring third information corresponding to the first candidate cell; the third information is used to verify whether the first candidate cell is a valid candidate cell.

The third information of the invalid candidate cell is the same as the content contained in the first information of the invalid candidate cell, and the receiving time is different, that is, the third information is received after the first information of the invalid candidate cell is deleted.

In the embodiment provided by the application, the third information can be sent to the terminal equipment through the high-layer signaling. For example, the third information may be new RRC reconfiguration (RRC Reconfiguration, RRC reconfig) information that the source network device may send to the terminal device when the source link quality is good. Of course, the third information may also include identity information of other new candidate cells different from the candidate cells in the first information.

The third information includes at least one of: the physical cell identifier (PHYSICAL CELL IDENTIFIER, PCI) of the candidate cell, the frequency point corresponding to the candidate cell, the cell radio network temporary identifier allocated by the candidate cell for the terminal device, the random access channel RACH resource information required for accessing the candidate cell (the random access channel RACH resource information required for accessing the candidate cell may include dedicated RACH resource information and/or common RACH resource information, etc.), and the index of the candidate cell.

And if the first candidate cell is determined to be a valid candidate cell based on the third information, performing measurement evaluation on the first candidate cell based on the second information corresponding to the first candidate cell.

Here, the terminal device also needs to verify the validity of the third information of the first candidate cell first to determine whether the third information of the first candidate cell matches with the specification in the 3gpp ts38.331 protocol.

And under the condition that the verification result is effective, carrying out measurement evaluation on the first candidate cell according to the second information corresponding to the first candidate cell.

It will be appreciated that if the terminal device determines that the third information of the first candidate cell is valid, it indicates that the first candidate cell is initially provided with the capability to perform a conditional handover.

Thus, in some embodiments, the terminal device may first re-mark the second information corresponding to the invalid first candidate cell as available, and then re-perform measurement evaluation on the invalid first candidate cell based on the available second information; in other embodiments, the terminal device may also directly find the second information corresponding to the invalid first candidate cell, and re-perform measurement evaluation on the invalid candidate cell based on the second information. The manner of re-measurement evaluation in the embodiment of the application is not limited.

In a possible embodiment, the terminal device maintains the communication connection with the source cell in case the authentication result of at least one of the plurality of first candidate cells is invalid.

Specifically, when the validity check of the first information or the third information of part or all of the candidate cells fails, the terminal device does not trigger the RRC connection reestablishment process, but maintains the RRC connection with the source network device, thereby avoiding an unnecessary RRC connection reestablishment process, further reducing the time of interrupting user data transmission, and improving user experience.

In an embodiment of the present application, referring to a flowchart shown in fig. 6, an information processing method provided in an embodiment of the present application may include the following steps:

in step 601, the terminal device receives an RRC reconfiguration message including a conditional reconfiguration cell sent by the source network device.

Here, in general, in the condition reconfiguration increase and modification list in the condition reconfiguration information, the configuration information (condition handover command) of a plurality of candidate cells and the handover execution condition of the corresponding candidate cells are configured.

Step 602, the terminal device analyzes configuration information of the candidate cell;

in step 603, the terminal device determines whether the configuration information (i.e. the first information) of the parsed candidate cell is valid.

Here, if the configuration information of the candidate cell is valid, step 604 is performed; if the configuration information of the candidate cell is invalid, step 606 is performed.

In step 604, the measurement configuration (i.e., the second information) in the RRC reconfiguration message, which is the same as the measurement identifier specified in the handover execution condition of the candidate cell whose configuration information is valid, is marked as an available state.

Here, the measurement configuration information includes at least one of: measuring objects, measuring identifications and reporting configurations.

Step 605, the configuration information is stored as the configuration information of the valid candidate cell.

Here, the configuration information of the candidate cell includes at least one of: physical cell identity (PHYSICAL CELL IDENTIFIER, PCI) of the candidate cell, frequency point corresponding to the candidate cell, cell radio network temporary identity allocated to the terminal device by the candidate cell, random access channel RACH resource information required for accessing the candidate cell (the random access channel RACH resource information required for accessing the candidate cell may include dedicated RACH resource information and/or common RACH resource information, etc.), and index of the candidate cell.

In step 606, the measurement configuration identical to the measurement identifier specified in the handover execution condition of the candidate cell whose configuration information is invalid in the measurement configuration in the RRC reconfiguration message is marked as an unavailable state.

In step 607, the configuration information of the candidate cell whose configuration information is invalid is discarded.

Step 608, determining whether the configuration information of all candidate cells is analyzed.

If the configuration information of all candidate cells is resolved, step 609 is performed; otherwise, step 610 is performed.

Step 609, execute the subsequent flow of conditional switching.

Step 610, selecting the next candidate cell, returning to step 602, and continuing to parse the configuration information of the next candidate cell.

In a possible embodiment, referring to the flow chart shown in fig. 7, a process flow following a condition switch is provided, which may include the following steps:

the terminal equipment sends an RRC reconfiguration completion message to the network equipment;

the terminal equipment executes measurement evaluation on the candidate cells with valid configuration information, namely the terminal equipment executes measurement evaluation marked as available state in measurement configuration;

And when the configuration information is that the effective candidate cell meets the condition of conditional switching, executing cell switching and sending RRC reconfiguration completion information to the network equipment.

In the embodiment of the application, when the terminal equipment receives the RRC reconfiguration message, the configuration of the candidate cell for conditional handover is validated, then the measurement configuration is screened according to the result of the validation, and the handover measurement evaluation is executed according to the screening result, so that the handover measurement evaluation of the candidate cell for invalid configuration can be avoided, the power consumption of the terminal equipment is reduced, and the performance of the terminal equipment is improved.

When the configuration validity verification of part or all of the candidate cells in the conditional reconfiguration cell fails, the terminal equipment does not trigger the RRC connection reestablishment process, but keeps the current RRC connection, so that the unnecessary RRC connection reestablishment process is avoided, the time for interrupting user data transmission is reduced, and the user experience is improved.

In some embodiments, the same technical solutions as in the previous embodiments may also be applied for conditional primary and secondary cell change (CPC) scenarios.

An embodiment of the present application provides an information processing apparatus that can execute the information processing method provided by any of the above embodiments. The device may be used as a terminal device or a chip (e.g., a Modem (Modem), a system on chip (system on chip), etc.) for controlling power consumption in the terminal device.

Fig. 8 is a schematic structural diagram of an information processing apparatus according to an embodiment of the present application, and as shown in fig. 8, the apparatus may include an authentication unit 801, an acquisition unit 802, and an evaluation unit 803. The authentication unit 801, the acquisition unit 802, and the evaluation unit 803 may be caused to realize the following functions by either software, or hardware, or a combination of software and hardware. Exemplary:

A verification unit 801 configured to verify validity of the first candidate cell; an obtaining unit 802, configured to obtain a first candidate cell with a valid verification result from the plurality of first candidate cells, so as to obtain at least one second candidate cell; an evaluation unit 803 configured to perform measurement evaluation on the at least one second candidate cell.

In some embodiments, the apparatus 800 further includes a receiving unit configured to receive first information corresponding to the first candidate cell; the first information includes cell configuration information of the first candidate cell; and the verification unit 801 is configured to verify the first candidate cell according to the first information to obtain a verification result.

In some embodiments, the first candidate cell has second information associated therewith for measurement evaluation of cell handover by the terminal device for the first candidate cell; the apparatus 800 further includes a marking unit, which is specifically configured to mark, if it is determined that the first candidate cell is a valid candidate cell based on the first information, second information corresponding to the first candidate cell as an available state; or if the first candidate cell is determined to be an invalid candidate cell based on the first information, marking the second information corresponding to the first candidate cell as an unavailable state.

In some embodiments, the apparatus 800 further includes a deleting unit configured to delete the first information corresponding to the first candidate cell.

In some embodiments, the obtaining unit 802 is further configured to obtain third information corresponding to the first candidate cell; the third information is used for verifying whether the first candidate cell is a valid candidate cell; the evaluation unit 803 is further configured to perform measurement evaluation on the first candidate cell based on second information corresponding to the first candidate cell if it is determined that the first candidate cell is a valid candidate cell based on the third information.

In some embodiments, the evaluation unit 803 is further configured to perform measurement evaluation on the second candidate cell based on the second information associated with the second candidate cell, to obtain a target candidate cell whose measurement result meets a handover condition.

In some embodiments, the apparatus 800 further comprises a switching unit configured to switch from a source cell to one of the target candidate cells.

In some embodiments, the first information of the at least one candidate cell includes at least one of: the method comprises the steps of physical cell identification of a candidate cell, frequency points corresponding to the candidate cell, cell wireless network temporary identification distributed by the candidate cell for terminal equipment, random access channels required by accessing the candidate cell and indexes of the candidate cell.

In some embodiments, the first information includes at least one of: measuring objects, measuring identifications and reporting configurations.

In some embodiments, the apparatus 800 further comprises a connection unit configured to maintain an RRC communication connection with the source cell if the authentication result of at least one of the plurality of first candidate cells is invalid.

Based on the foregoing embodiments, the present embodiments also provide a terminal device, which may be a cellular phone, a cordless phone, a session initiation protocol (Session Initiation Protocol, SIP) phone, an IoT device, a satellite handheld terminal, a wireless local loop (Wireless Local Loop, WLL) station, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a handheld device with wireless communication functionality, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolution network, etc.

Fig. 9 is a schematic block diagram of a terminal device according to an embodiment of the present application, including a processor 901, where the processor 901 may call and run a computer program from a memory to implement a method according to an embodiment of the present application.

Optionally, as shown in fig. 9, the terminal device 900 may further comprise a memory 902. Wherein the processor 901 may call and run a computer program from the memory 902 to implement the method in an embodiment of the present application.

In particular, the processor 901 may be configured to: verifying the validity of the first candidate cell; acquiring first candidate cells with valid verification results from a plurality of first candidate cells to obtain at least one second candidate cell; and performing measurement evaluation on the at least one second candidate cell.

In some embodiments, the processor 901 is further configured to: receiving first information corresponding to the first candidate cell; the first information includes cell configuration information of the first candidate cell; and verifying the first candidate cell according to the first information to obtain a verification result.

In some embodiments, the processor 901 is further configured to: if the first candidate cell is determined to be a valid candidate cell based on the first information, marking second information corresponding to the first candidate cell as an available state; or if the first candidate cell is determined to be an invalid candidate cell based on the first information, marking the second information corresponding to the first candidate cell as an unavailable state.

In some embodiments, the processor 901 is further configured to: and deleting the first information corresponding to the first candidate cell.

In some embodiments, the processor 901 is further configured to: acquiring third information corresponding to the first candidate cell; the third information is used for verifying whether the first candidate cell is a valid candidate cell; and if the first candidate cell is determined to be a valid candidate cell based on the third information, performing measurement evaluation on the first candidate cell based on second information corresponding to the first candidate cell.

In some embodiments, the processor 901 is further configured to: based on second information associated with the second candidate cell, performing measurement evaluation on the second candidate cell to obtain a target candidate cell with a measurement result conforming to a handover condition; and switching from a source cell to the target candidate cell.

In some embodiments, the processor 901 is further configured to: and when the verification result of at least one first candidate cell in the plurality of first candidate cells is invalid, maintaining the RRC communication connection with the source cell.

The memory 902 may be a separate device independent of the processor 901, or may be integrated into the processor 901.

Optionally, as shown in fig. 9, the terminal device may further include a transceiver 903, and the processor 901 may control the transceiver 903 to communicate with other devices, and in particular, may send information or data to other devices, or receive information or data sent by other devices.

The transceiver 903 may include a transmitter and a receiver, among others. The transceiver 903 may further include antennas, the number of which may be one or more.

Fig. 10 is a schematic structural view of a chip of an embodiment of the present application. The chip 1000 shown in fig. 10 includes a processor 1010, and the processor 1010 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 10, the chip 1000 may further include a memory 1020. Wherein the processor 1010 may call and run a computer program from the memory 1020 to implement the methods in embodiments of the present application.

The memory 1020 may be a separate device from the processor 1010 or may be integrated into the processor 1010.

Optionally, the chip 1000 may also include an input interface 1030. The processor 1010 may control the input interface 1030 to communicate with other devices or chips, and in particular, may obtain information or data sent by the other devices or chips.

Optionally, the chip 1000 may further include an output interface 1040. Wherein the processor 1010 may control the output interface 1040 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

Optionally, the chip may be applied to a terminal device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The Processor may be a general purpose Processor, a digital signal Processor (DIGITAL SIGNAL Processor, DSP), an Application SPECIFIC INTEGRATED Circuit (ASIC), an off-the-shelf programmable gate array (Field Programmable GATE ARRAY, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate Synchronous dynamic random access memory (Double DATA RATE SDRAM, DDR SDRAM), enhanced Synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCHLINK DRAM, SLDRAM), and Direct memory bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be appreciated that the above memory is exemplary and not limiting, and for example, the memory in the embodiments of the present application may be static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (double DATA RATE SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous connection dynamic random access memory (SYNCH LINK DRAM, SLDRAM), direct Rambus RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer storage medium, in particular a computer readable storage medium. On which computer instructions are stored which, when the computer storage medium is located in an electronic device manufacturing apparatus, when executed by a processor, implement any of the steps in the above-described information processing method according to the embodiments of the present application.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above described device embodiments are only illustrative, e.g. the division of the units is only one logical function division, and there may be other divisions in practice, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the various components shown or discussed may be coupled or directly coupled or communicatively coupled to each other via some interface, whether indirectly coupled or communicatively coupled to devices or units, whether electrically, mechanically, or otherwise.

The units described as separate units may or may not be physically separate, and units displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units; some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may be separately used as one unit, or at least two units may be integrated in one unit; the integrated units may be implemented in hardware or in hardware plus software functional units.

Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the above method embodiments may be implemented by hardware associated with program instructions, where the foregoing program may be stored in a computer readable storage medium, and when executed, the program performs steps including the above method embodiments; and the aforementioned storage medium includes: a removable storage device, ROM, RAM, magnetic or optical disk, or other medium capable of storing program code.

Or the above-described integrated units of the application may be stored in a computer-readable storage medium if implemented in the form of software functional modules and sold or used as separate products. Based on such understanding, the technical solutions of the embodiments of the present application may be embodied in essence or a part contributing to the prior art in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a removable storage device, ROM, RAM, magnetic or optical disk, or other medium capable of storing program code.

It should be noted that: the technical schemes described in the embodiments of the present application may be arbitrarily combined without any collision.

The foregoing is merely an embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (12)

1. An information processing method, characterized in that the method comprises:

Receiving first information corresponding to a first candidate cell; the first information includes cell configuration information of the first candidate cell;

Verifying the first candidate cell according to the first information to obtain a verification result; the first information includes at least one of: the method comprises the steps of physical cell identification of a candidate cell, a frequency point corresponding to the candidate cell, a cell wireless network temporary identification distributed by the candidate cell for terminal equipment, a random access channel required for accessing the candidate cell and an index of the candidate cell;

Acquiring a first candidate cell with a valid verification result from the first candidate cell to obtain at least one second candidate cell;

performing measurement evaluation on the at least one second candidate cell;

The first candidate cell has second information associated with the first candidate cell, wherein the second information is used for measurement evaluation of cell switching of the first candidate cell by the terminal equipment;

The method further comprises the steps of:

If the first candidate cell is determined to be a valid candidate cell based on the first information, marking second information corresponding to the first candidate cell as an available state;

or if the first candidate cell is determined to be an invalid candidate cell based on the first information, marking the second information corresponding to the first candidate cell as an unavailable state;

wherein the verifying the first candidate cell according to the first information includes:

And verifying configuration information of radio resources contained in the first information of the first candidate cell, and determining that a verification result of the first candidate cell is valid under the conditions that part of information is not missing in the first information of the first candidate cell and redundant information is not contained in the first information of the first candidate cell.

2. The method of claim 1, wherein after marking the second information corresponding to the first candidate cell as unavailable, further comprising:

and deleting the first information corresponding to the first candidate cell.

3. The method of claim 2, wherein after deleting the first information corresponding to the first candidate cell, the method further comprises:

acquiring third information corresponding to the first candidate cell; the third information is used for verifying whether the first candidate cell is a valid candidate cell;

And if the first candidate cell is determined to be a valid candidate cell based on the third information, performing measurement evaluation on the first candidate cell based on second information corresponding to the first candidate cell.

4. The method of claim 1, wherein said performing measurement evaluation on said at least one second candidate cell comprises:

Based on second information associated with the second candidate cell, performing measurement evaluation on the second candidate cell to obtain a target candidate cell with a measurement result conforming to a handover condition;

After the measurement evaluation of the at least one second candidate cell, the method further comprises:

switching from a source cell to a first target candidate cell; the target candidate cell includes the first candidate cell.

5. The method according to any one of claims 1 to 4, further comprising:

And when the verification result of at least one first candidate cell in the plurality of first candidate cells is invalid, maintaining the RRC communication connection with the source cell.

6. The method according to any one of claims 1 to 4, wherein the second information comprises at least one of: measuring objects, measuring identifications and reporting configurations.

7. An information processing apparatus, characterized by comprising:

a receiving unit configured to receive first information corresponding to a first candidate cell; the first information includes cell configuration information of the first candidate cell;

the verification unit is configured to verify the first candidate cell according to the first information to obtain a verification result; the first information includes at least one of: the method comprises the steps of physical cell identification of a candidate cell, a frequency point corresponding to the candidate cell, a cell wireless network temporary identification distributed by the candidate cell for terminal equipment, a random access channel required for accessing the candidate cell and an index of the candidate cell;

The verification unit is specifically configured to verify configuration information of radio resources included in the first information of the first candidate cell, and determine that a verification result of the first candidate cell is valid when no part of information is missing in the first information of the first candidate cell and no redundant information is included in the first information of the first candidate cell;

An obtaining unit configured to obtain a first candidate cell whose verification result is valid from a plurality of first candidate cells, and obtain at least one second candidate cell;

An evaluation unit configured to perform measurement evaluation on the at least one second candidate cell;

The first candidate cell has second information associated with the first candidate cell, wherein the second information is used for measurement evaluation of cell switching of the first candidate cell by the terminal equipment;

A marking unit configured to mark second information corresponding to the first candidate cell as an available state if it is determined that the first candidate cell is a valid candidate cell based on the first information; or if the first candidate cell is determined to be an invalid candidate cell based on the first information, marking the second information corresponding to the first candidate cell as an unavailable state.

8. A chip, comprising: a processor for calling and running a computer program from a memory, causing a device comprising the chip to perform the method of any one of claims 1 to 6.

9. A computer readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the method according to any one of claims 1 to 6.

10. A terminal device comprising a processor, wherein the processor is configured to:

Receiving first information corresponding to a first candidate cell; the first information includes cell configuration information of the first candidate cell; verifying the first candidate cell according to the first information to obtain a verification result; the first information includes at least one of: the method comprises the steps of physical cell identification of a candidate cell, a frequency point corresponding to the candidate cell, a cell wireless network temporary identification distributed by the candidate cell for terminal equipment, a random access channel required for accessing the candidate cell and an index of the candidate cell;

Acquiring first candidate cells with valid verification results from a plurality of first candidate cells to obtain at least one second candidate cell;

performing measurement evaluation on the at least one second candidate cell;

The first candidate cell has second information associated with the first candidate cell, wherein the second information is used for measurement evaluation of cell switching of the first candidate cell by the terminal equipment;

If the first candidate cell is determined to be a valid candidate cell based on the first information, marking second information corresponding to the first candidate cell as an available state;

or if the first candidate cell is determined to be an invalid candidate cell based on the first information, marking the second information corresponding to the first candidate cell as an unavailable state;

wherein the verifying the first candidate cell according to the first information includes:

And verifying configuration information of radio resources contained in the first information of the first candidate cell, and determining that a verification result of the first candidate cell is valid under the conditions that part of information is not missing in the first information of the first candidate cell and redundant information is not contained in the first information of the first candidate cell.

11. The terminal device of claim 10, wherein the processor is further configured to:

Based on second information associated with the second candidate cell, performing measurement evaluation on the second candidate cell to obtain a target candidate cell with a measurement result conforming to a handover condition;

and switching from a source cell to the target candidate cell.

12. The terminal device of claim 10, wherein the processor is further configured to:

And when the verification result of at least one first candidate cell in the plurality of first candidate cells is invalid, maintaining the RRC communication connection with the source cell.