[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CN116709435A - Cell switching method and device and computer readable storage medium - Google Patents

Cell switching method and device and computer readable storage medium Download PDF

Info

Publication number
CN116709435A
CN116709435A CN202210176313.7A CN202210176313A CN116709435A CN 116709435 A CN116709435 A CN 116709435A CN 202210176313 A CN202210176313 A CN 202210176313A CN 116709435 A CN116709435 A CN 116709435A
Authority
CN
China
Prior art keywords
remote
remote device
relay device
cell
handover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210176313.7A
Other languages
Chinese (zh)
Inventor
邓云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Spreadtrum Communications Shanghai Co Ltd
Original Assignee
Spreadtrum Communications Shanghai Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Spreadtrum Communications Shanghai Co Ltd filed Critical Spreadtrum Communications Shanghai Co Ltd
Priority to CN202210176313.7A priority Critical patent/CN116709435A/en
Publication of CN116709435A publication Critical patent/CN116709435A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0011Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0058Transmission of hand-off measurement information, e.g. measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0083Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085Hand-off measurements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/08Reselecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/30Reselection being triggered by specific parameters by measured or perceived connection quality data

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A cell switching method and device, and a computer readable storage medium, the cell switching method comprising: receiving a first switching command; the first switch command indicates a processing scheme of the remote device; the remote device accesses a network through the relay device. By adopting the scheme, when the relay equipment is switched, corresponding processing aiming at different remote equipment can be realized.

Description

Cell switching method and device and computer readable storage medium
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a cell handover method and apparatus, and a computer readable storage medium.
Background
A relay device (relay UE) is introduced in the New air interface (NR), by which the coverage of the network is extended. The relay device may be a User Equipment (UE) that performs a relay function, and communicates with the serving cell through an existing Uu interface, and simultaneously communicates with a remote UE through a direct link PC5 interface. By means of the relay device, the remote device can communicate signalling and data with the serving cell.
In R17, the function of the relay device is limited due to time limitation. When the relay device needs to be handed over from the current serving cell to the first target cell, the relay device notifies the remote device in a connected state to perform RRC reestablishment through a direct link notification (notification) message.
In R18, the relay device may introduce new functionality. For example, the relay device and the remote device can be simultaneously handed over to neighboring cells under the control of the serving cell. If the relay device supports the function newly introduced by R18 and one part of the remote devices connected with the relay device supports only R17 and the other part supports R17 and R18, how to process different remote devices when the relay device triggers handover is not related in the prior art.
Disclosure of Invention
One of the purposes of the embodiments of the present invention is to provide a cell handover method, which can perform corresponding processing on different remote devices when a relay device triggers handover.
In order to achieve the above object, an embodiment of the present invention provides a cell handover method, which is applied to a relay device; the cell switching method comprises the following steps: receiving a first switching command; the first switch command indicates a processing scheme of the remote device; the remote device accesses a network through the relay device.
Optionally, before receiving the first switching command, the method further includes: and reporting the PC5 link information between the remote equipment and the current service.
Optionally, the reporting the PC5 link information between the remote device and the current service includes: receiving measurement configuration information and performing measurement; and when the reporting condition is met, reporting a measurement report and the PC5 link information between the remote equipment and the current service.
Optionally, the reporting the PC5 link information between the remote device and the current service includes: and reporting the PC5 link information between the remote equipment of the current service when the measurement report is triggered by a measurement event or reporting the PC5 link information between the remote equipment of the current service when the measurement report is triggered by the measurement event.
Optionally, the reporting the PC5 link information between the remote device and the current service includes: only reporting the PC5 link information of which the PC5 link quality exceeds a preset threshold; or only reporting the PC5 link information of which the PC5 link quality is smaller than the preset threshold; or, reporting the PC5 link information between the remote devices and all the remote devices currently served.
Optionally, the PC5 link quality is characterized by a reference signal received power.
Optionally, the processing scheme of the remote device includes any one of the following: the remote equipment executes switching operation; the remote device performing a handover operation includes any one of: continuing to access a network through the relay device; switching to the same target cell with the relay equipment, and not accessing to a network through the relay equipment; switching to a different target cell from the relay device; the remote device releases the connection with the relay device; the remote device triggers RRC reestablishment.
Optionally, when the processing scheme of the remote device is that a handover operation is performed, forwarding signaling corresponding to the first remote device.
Optionally, the forwarding the signaling corresponding to the first remote device includes: the signaling is forwarded to the first remote device before executing the first handover command.
The embodiment of the invention also provides another cell switching method, which comprises the following steps: acquiring a measurement report of a relay device and a remote device served by the relay device; determining a first remote device which is switched to a first target cell together with the relay device according to the measurement report; transmitting a handover request signaling to a first target cell; the handover request signaling is used for indicating the first remote device to be handed over to the first target cell or indicating the first remote device to continue to access a network through the relay device; and after receiving a switching request confirmation returned by the first target cell, respectively issuing a first switching command and a second switching command to the relay equipment and the first remote equipment.
Optionally, the issuing a first switching command and a second switching command to the relay device and the first remote device respectively includes: and after the second switching command is issued to the remote equipment, issuing the first switching command to the relay equipment.
Optionally, the sending the handover request signaling to the first target cell includes: transmitting a first switching request signaling and a second switching request signaling to the first target cell, wherein the first switching request signaling is used for indicating a request for switching the relay equipment to the first target cell; the second handover request signaling is configured to instruct handover of the first remote device to the first target cell, and instruct whether the first remote device accesses the relay device.
Optionally, if only one handover request signaling is adopted, when the handover request signaling includes the identifier of the first remote device, it is characterized that the first remote device continues to access the network through the relay device, or it is characterized that the first remote device is handed over to the first target cell and does not need to access the network through the relay device.
Optionally, the measurement report of the remote device served by the relay device includes: and PC5 link information between the relay device and the remote device.
The embodiment of the invention also provides a cell switching method which is applied to the relay equipment and comprises the following steps: and when the measurement report is reported, reporting the PC5 link information between the remote equipment and the current service.
Optionally, the reporting the PC5 link information between the remote device and the current service includes: receiving measurement configuration information and performing measurement; and when the reporting condition is met, reporting a measurement report and the PC5 link information between the remote equipment and the current service.
Optionally, the reporting the PC5 link information between the remote device and the current service includes: and reporting the PC5 link information between the remote equipment of the current service when the measurement report is triggered by a measurement event or reporting the PC5 link information between the remote equipment of the current service when the measurement report is triggered by the measurement event.
Optionally, the reporting the PC5 link information between the remote device and the current service includes any one of the following: only reporting the PC5 link information of which the PC5 link quality exceeds a preset threshold; or only reporting the PC5 link information of which the PC5 link quality is smaller than the preset threshold; or, reporting PC5 link information between the remote devices and the current service; or reporting indication information, wherein the indication information is used for indicating that the quality of the PC5 links between the remote equipment and all the remote equipment exceeds a preset threshold, or indicating that the quality of the PC5 links between the remote equipment and all the remote equipment does not exceed the preset threshold.
Optionally, the reporting the PC5 link information between the remote device and the current service includes: if the PC5 link information is not reported, the quality of the PC5 link between the characterization and the remote equipment currently served exceeds a preset threshold; alternatively, none of the PC5 link quality characteristics with the currently serving remote device exceeds a preset threshold.
Optionally, the PC5 link quality is characterized by a reference signal received power.
The embodiment of the invention also provides a cell switching device, which comprises: a receiving unit configured to receive a first switching command; the first switch command indicates a processing scheme of the remote device; the remote device accesses a network through the relay device.
The embodiment of the invention also provides another cell switching device, which comprises: an acquisition unit, configured to acquire a measurement report of a relay device and a remote device served by the relay device; a determining unit, configured to determine, according to the measurement report, a first remote device that is handed over to a first target cell together with the relay device; a first sending unit, configured to send a handover request signaling to a first target cell; the handover request signaling is used for indicating the first remote device to be handed over to the first target cell or indicating the first remote device to continue to access a network through the relay device; and the second sending unit is used for respectively sending a first switching command and a second switching command to the relay equipment and the first remote equipment after receiving the switching request confirmation returned by the first target cell.
The embodiment of the invention also provides a cell switching device, which comprises: and the reporting unit is used for reporting the PC5 link information between the remote equipment and the current service.
The embodiment of the invention also provides a computer readable storage medium, which is a non-volatile storage medium or a non-transient storage medium, and a computer program is stored on the computer readable storage medium, and the computer program is executed by a processor to execute the steps of any cell switching method.
The embodiment of the invention also provides another cell switching device, which comprises a memory and a processor, wherein the memory stores a computer program which can be run on the processor, and the processor executes the steps of any cell switching method when running the computer program.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
after receiving the first switching command, the relay device obtains a processing scheme corresponding to the remote device from the first switching command. Through the scheme, the relay device can know the processing scheme of the remote device. Therefore, when the relay device triggers the switching, different remote devices can be correspondingly processed.
Further, the relay device reports the measurement report and also reports the quality of the PC5 link with all the remote devices currently serving. The serving cell, upon receiving the measurement report and the quality of the PC5 link with all the remote devices currently serving, can determine whether to trigger a handover of the relay device and whether to trigger a handover of the remote device with the relay device.
Drawings
Fig. 1 is a flow chart of a cell handover method in an embodiment of the present invention;
FIG. 2 is a diagram of a communication system architecture in an embodiment of the invention;
fig. 3 is a flow chart of another cell switching method in an embodiment of the invention;
fig. 4 is a schematic structural diagram of a cell switching apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another cell switching apparatus according to an embodiment of the present invention.
Detailed Description
As described in the background section above, in R18, the relay device may introduce new functions. For example, the relay device and the remote device can be simultaneously handed over to neighboring cells under the control of the serving cell. If the relay device supports R18 and one part of the remote devices connected with the relay device supports R17 only, and the other part supports R17 and R18 simultaneously, when the relay device triggers handover, how to process different remote devices is not related in the prior art. At this time, the relay device may falsely trigger the RRC reestablishment procedure of the remote device.
In the embodiment of the invention, after receiving the first switching command, the relay device acquires the processing scheme corresponding to the remote device from the first switching command. Therefore, when the relay device triggers the switching, different remote devices can be correspondingly processed.
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
The embodiment of the invention provides a cell switching method, and the detailed description is given below through specific steps with reference to fig. 1.
In the embodiment of the present invention, the cell handover method provided in the following steps S101 to S102 may be performed by a relay device, which may be a user equipment. Specifically, the following steps S101 to S102 may be performed by a chip (e.g., a baseband chip) having data processing capability in the relay device, or by a chip module including the data processing chip in the relay device.
Referring to fig. 2, a communication system architecture diagram in an embodiment of the present invention is presented. In fig. 2, a Remote device (Remote UE) communicates with a serving base station (gNB) through a Relay device (Relay UE). And forwarding control signaling and user plane data corresponding to the remote equipment through the relay equipment. The relay device may communicate with the serving base station via a Uu link (link), and the remote device may communicate with the relay device via a PC5 link (link). The relay device is illustrated in fig. 2 as providing relay services for 1 remote device. It will be appreciated that in practical applications, the relay device may provide relay services to multiple remote devices simultaneously.
Step S101, a first switching command is received.
In an implementation, the relay device may receive a first handover command issued by a current serving cell, and the relay device may be currently in a connected state. The first switch command may be used to indicate a processing scheme of the remote device. The remote device as referred to herein refers to a remote device that accesses the network through a relay device.
In the embodiment of the invention, the relay device is a relay device supporting the R18 function. Among the remote devices that access the network through the relay device, a remote device that supports only the R17 function, a remote device that supports R18 (which also supports the R17 function), and the like may be included.
For a remote device supporting the R18 function, when the relay device is handed over from the current serving cell to the first target cell (the current serving cell may be different from the first target cell), if the remote device supporting the R18 function satisfies the handover condition, the remote device supporting the R18 function and the relay device can be handed over to the first target cell at the same time. For a remote device supporting only the R17 function, when the relay device switches, the relay device informs the remote device, and the remote device triggers RRC reestablishment.
The serving cell may send measurement configuration information to the relay device during the operation of the relay device. And the relay equipment executes corresponding measurement operation according to the received measurement configuration information and obtains a measurement report corresponding to the measurement operation. The measurement report may trigger the serving cell to initiate a cell handover.
For example, the measurement configuration information includes one or more measurement identities Measurement Identity, one measurement identity associated with each measurement frequency point and a reporting condition. The serving cell may configure whether the measurement identity is associated with a timer T312.
In a specific implementation, the specific process of configuring measurement configuration information for the relay device by the serving cell and the specific content in the measurement configuration information may refer to the existing protocol correspondingly, which is not further described herein.
In the embodiment of the invention, after receiving the measurement configuration information, the relay device can measure the quality of the PC5 link with the remote device currently serving in addition to measuring the measurement identifier configured in the measurement configuration information.
When the relay device detects that the reporting condition is satisfied, the relay device may report a measurement report. If the measurement report is associated with the timer T312, the relay device may report the PC5 link information corresponding to the remote device that remains connected to the relay device while reporting the measurement report. Alternatively, when the measurement report is triggered by a measurement event (e.g., the measurement report is triggered by the relay device finding that the signal quality of the neighbor cell satisfies measurement event A3 or A4), the relay device reports PC5 link information with the currently serving remote device. The PC5 link information may be carried by the measurement report or independent of the measurement report as may be carried by layer 2.
In the embodiment of the invention, the relay device can also report the indication information, and the indication information can be used for indicating that the quality of the PC5 links between the relay device and all the remote devices exceeds (including the exceeding is equal to the preset threshold); alternatively, the indication information may be used to indicate that the quality of the PC5 link between the relay device and all the remote devices does not exceed the preset threshold. If no special description exists, the "the quality of the PC5 link exceeds the preset threshold" in the embodiment of the present invention means that: the quality of the PC5 link is not lower than a preset threshold, i.e. the quality of the PC5 link is greater than or equal to the preset threshold.
The relay device may not report PC5 link information with the remote device. If the relay device does not report the PC5 link information between the relay device and the remote devices, it may be characterized that the quality of the PC5 links between the relay device and all the remote devices exceeds (including is equal to) a preset threshold, or that the quality of the PC5 links between the relay device and all the remote devices does not exceed the preset threshold.
For example, the remote devices 1, 2, and 3 are connected to the network through the relay device, and the remote devices 1, 2, and 3 are connected. The link quality of the PC5 between the relay device and the remote device 1, the remote device 2 and the remote device 3 exceeds a preset threshold. The relay device reports indication information, and the indication information indicates that the link quality of the PC5 between the relay device and the remote device 1, the remote device 2 and the remote device 3 exceeds a preset threshold.
As another example, the remote device 1, the remote device 2, and the remote device 3 access the network through the relay device, and the remote device 1, the remote device 2, and the remote device 3 are all in a connected state. The link quality of the PC5 between the relay device and the remote device 1, the remote device 2 and the remote device 3 exceeds a preset threshold. The relay device only reports the measurement report, and the measurement report does not carry PC5 link information, the measurement report indicates that the quality of PC5 links between the relay device and the remote device 1, the remote device 2 and the remote device 3 exceeds a preset threshold substantially implicitly.
In the embodiment of the invention, the relay device can only report the PC5 link information that the PC5 link quality exceeds (including being equal to) the preset threshold, and the relay device can also only report the PC5 link information that the PC5 link quality is smaller than the preset threshold. The relay device may also report PC5 link information with all remote devices. It should be noted that, the preset threshold may be configured in advance by the serving cell or set in advance by the protocol.
Only reporting the PC5 link information with the PC5 link quality exceeding the preset threshold, or only reporting the PC5 link information with the PC5 link quality smaller than the preset threshold, the uplink resource overhead required by the relay equipment reporting can be reduced.
For example, among the remote devices currently served by the relay device, the remote device 1, the remote device 2, and the remote device 3 are all in a connected state. After receiving the measurement configuration information, the relay device performs a corresponding measurement operation, and measures the PC5 link quality between the relay device and the remote device 1, the PC5 link quality between the relay device and the remote device 2, and the PC5 link quality between the relay device and the remote device 3.
When the relay equipment detects that the service cell or the adjacent cell meets the reporting condition, the measurement result of the service cell and/or the adjacent cell is reported through the measurement report. The quality of the PC5 link between the relay device and the remote device 1 is larger than a preset threshold, the quality of the PC5 link between the relay device and the remote device 2 is smaller than the preset threshold, and the relay device simultaneously reports the PC5 link information between the relay device and the remote device 1 when reporting the measurement result of the service cell and/or the neighbor cell meeting the reporting condition when the quality of the PC5 link between the relay device and the remote device 3 is smaller than the preset threshold.
In an embodiment of the invention, the PC5 link quality may be characterized by a reference signal received power. In other embodiments of the invention, the PC5 link quality may also be characterized by other parameters that characterize the link quality.
In a specific implementation, the remote device may also report a measurement report, where the measurement report reported by the remote device may include PC5 link information between the remote device and the relay device.
If at least PC5 link information exists in the measurement report reported by the relay device and the measurement report reported by the remote device, the serving cell may make the following decision according to the measurement report and the quality of the PC5 link between each remote device and the relay device: which remote devices can switch with the relay device and continue to access the network through the relay device; which remote devices and relay devices are both handed over to the first target cell, but not through the relay device to access the network; which remote devices switch to a second target cell different from the first target cell; which remote devices release the connection with the relay device; which remote devices trigger RRC reestablishment.
And the serving cell sends a switching request signaling to the first target cell according to the decision. The service cell determines that cell switching is performed on the relay device and the first remote device, wherein the first remote device is the remote device with the quality of the PC5 link between the first remote device and the relay device being higher than a preset threshold, and the number of the first remote devices can be 1 or more.
For example, both the remote device 1 and the remote device 2 support R18, i.e. support handover together with the relay device. The remote device 3 does not support R18 and therefore does not support handover with the relay device. The service cell knows that the link quality of the PC5 corresponding to the remote equipment 1 is higher than a preset threshold, the link quality of the PC5 corresponding to the remote equipment 2 is lower than the preset threshold, and the service cell determines to switch the remote equipment 1 and the relay equipment.
If both the relay device and the first remote device can be switched to the first target cell, after both the relay device and the first remote device are switched to the first target cell, there are two situations as follows: the first remote device may continue to access the network through the relay device or directly access the network without accessing the network through the relay device.
In this regard, in an embodiment of the present invention, the handover request signaling may be used to instruct the first remote device to handover to the first target cell, that is: after the first remote equipment is switched to a first target cell, the first remote equipment is directly accessed to a network; or, instruct the first remote device to continue accessing the network through the relay device, that is: the first remote device switches to the first target cell and continues to access the network through the relay device.
The serving cell may generate a handover request signaling, and instruct, via the handover request signaling, whether to handover the relay device and the first remote device to the first target cell, and whether the first remote device continues to access the network via the relay device.
If the serving cell instructs the relay device and the remote device to switch to the first target cell through a Handover request signaling (possibly referred to as a Group Handover), the serving cell may instruct the remote device to switch to the first target cell and continue to be served by the relay device, or instruct whether to continue to be served by the relay device, i.e. continue to access the network through the relay device, according to the identity of the remote device in the Handover request signaling.
In one embodiment of the invention, if the handover request signaling (group handover) contains identities of the relay device and the remote devices, it means that these remote devices continue to be served by the relay device after the handover.
Alternatively, if the handover request signaling (group handover) contains identities of the relay device and the remote devices, it means that these remote devices do not continue to be accessed to the network by the relay device after the handover.
The serving cell may also generate a plurality of handover request signaling, where one handover request signaling indicates to handover the relay device to the first target cell, and the remaining handover request signaling indicates to handover the corresponding first remote device to the first target cell.
For example, the first remote device comprises a remote device 1 and a remote device 2. The serving cell generates 3 handover request signaling, where the first handover request signaling indicates to handover the relay device to the first target cell, the second handover request signaling indicates to handover the remote device 1 to the first target cell, and the third handover request signaling indicates to handover the remote device 2 to the first target cell.
In the embodiment of the invention, the serving cell sends a first switching request signaling and a second switching request signaling to the first target cell respectively, wherein the first switching request signaling is used for indicating that the relay equipment is requested to be switched to the first target cell, and the second switching request signaling is used for indicating that the first remote equipment is switched to the first target cell. In the second handover request signaling, the serving cell may also indicate whether the first remote device continues to access the network through the relay device.
If the relay device switches to the first target cell, the first remote device switches to a second target cell different from the first target cell, the number of the switching request signaling may be multiple, where one switching request signaling indicates that the relay device switches to the first target cell, and the rest switching request signaling indicates that the corresponding first remote device switches to the second target cell.
For example, the first remote device comprises the remote device 1. The serving cell generates 2 handover request signaling, the first handover request signaling indicating handover of the relay device to the first target cell, and the second handover request signaling indicating handover of the remote device 1 to the second target cell.
In a specific implementation, after receiving the handover request acknowledgement fed back by the first target cell, the serving cell may issue a first handover command to the relay device. In the first handover command, corresponding processing schemes for different remote devices may be carried.
In the embodiment of the present invention, the processing scheme corresponding to the remote device may include any one of the following: the remote device performs a handover operation, releases the connection with the relay device, and triggers RRC reestablishment.
Performing a handover operation for the remote device may further include any of the following handover: the remote equipment can be switched together with the relay equipment and can be continuously connected to the network through the relay equipment; both the remote device and the relay device switch to the first target cell, but do not access the network through the relay device (i.e., directly access the first target cell); the remote device switches to a second target cell different from the first target cell.
Step S102, forwarding signaling corresponding to the first remote device.
In the embodiment of the present invention, for a first remote device performing a handover operation, a relay device may forward signaling corresponding to the first remote device. The signaling corresponding to the first remote device may be a command, such as a second handover command, that instructs the first remote device to perform a handover.
In order to avoid the relay device from triggering the RRC reestablishment procedure of the first remote device by mistake, before executing the first handover command (that is, executing the operation of switching to the first target cell), the relay device forwards the signaling corresponding to the first remote device, so that the first remote device can timely learn that the first remote device needs to execute the handover operation, and cannot execute the RRC reestablishment.
In an implementation, the remote device served by the relay device may include a second remote device and a third remote device in addition to the first remote device.
In the embodiment of the present invention, the second remote device may be a remote device with a PC5 link quality less than a preset threshold, and the remote device supports the R18 function. The number of second remote devices may include one or more.
The third remote device may be a remote device that supports R17 functionality but does not support R18 functionality. The third remote device may also include one or more remote devices.
In the embodiment of the present invention, if the serving cell determines that the second remote device does not have the target cell switched, the serving cell may indicate in the first switching command that the processing scheme is: the connection with the relay device is released.
If the first handover command indicates that the third remote device does not perform handover, the relay device may send a notification message to the third remote device, where the notification message is used to indicate to the third remote device that the relay device performs handover. And the third remote device can trigger the RRC reestablishment flow after receiving the notification information.
The processing scheme of the remote device is explicitly indicated by the first switching command, so that the relay device does not blindly trigger a direct link notification message (notationnmessagesidelink) when receiving the first switching command. For the remote device needing to perform the handover operation, the relay device may timely forward the second handover command sent by the serving cell to the remote device. Although the relay device cannot resolve the second handover command sent by the serving cell to the remote device, it may be known that the serving cell sent signaling to the remote device, and the relay device needs to forward the received signaling to the remote device as soon as possible, because the forwarded signaling is highly likely to be the second handover command.
For a remote device that is handed over to a first target cell and continues to remain connected to itself, the relay device reconfigures uplink and downlink configuration parameters that provide data and signaling forwarding functions for the remote device according to a first handover command. For a remote device that performs neither handover nor continues to remain connected to itself, the relay device sends a direct link notification message to the remote device after receiving the first handover command, and the remote devices initiate RRC reestablishment procedures after receiving the notification message.
The following describes, by way of example, a cell handover method provided in an embodiment of the present invention.
A relay device in a connection state is provided in the serving cell1, and the relay device is capable of providing relay services for a remote device 1 (hereinafter referred to as RUE 1), a remote device 2 (hereinafter referred to as RUE 2), and a remote device 3 (RUE 3) in the connection state. The relay device is a UE supporting R18.
RUE1 and RUE2 are UEs supporting R18 and support relay-related mobility, i.e., RUE1 and RUE2 support handover from relay device 1 to relay device 2 or from cell1 to another cell2.RUE3 is a UE supporting R17, and when the relay device switches, the RUE3 triggers the RRC reestablishment procedure.
The serving cell1 configures one or more measurement identifiers Measurement Identity of the relay device, where each measurement identifier is associated with a measurement frequency point and a reporting condition. The serving cell1 configuration section measures an identity association timer T312. The relay device, upon receiving the measurement configuration information, performs a measurement operation related to the measurement identity, and also measures channel quality of the PC5 link corresponding to RUE1, RUE2, and RUE 3.
When the relay device triggers the measurement report of the association timer T312, the relay device reports the PC5 link information corresponding to the RUE1, RUE2, and RUE3 in addition to the measurement result corresponding to the measurement identifier (i.e., the measurement result of the serving cell and/or the neighbor cell satisfying the reporting condition). Setting the link quality between the relay equipment and the RUE1 to be higher than a preset threshold, and setting the link quality between the relay equipment and the RUE2 and RUE3 to be lower than the preset threshold.
And the serving cell1 determines that the relay equipment and the RUE1 are simultaneously switched to the first target cell2 according to the measurement result reported by the relay equipment, and the RUE2 and the RUE3 do not implement cell switching.
The serving cell1 sends a handover request signaling to the first target cell2 to request handover of the relay device and the RUE1 to the first target cell2. After receiving the handover request acknowledgement message fed back by the first target cell2, the serving cell1 sends a handover command to the relay device and the RUE1 respectively. The serving cell sends a second handover command to the RUE1 through forwarding of the relay device, and then sends a first handover command to the relay device.
In the first handover command, different remote devices are carried with the processing schemes, such as indicating that the RUE1 performs handover (may also include configuration information corresponding to the continuous service RUE 1), indicating that the RUE2 corresponds to the release information, and indicating that the RUE3 does not perform handover.
The relay device forwards the second switching command to the RUE1 according to the received first switching command, and sends notification information to the RUE2 and the RUE 3. After receiving the second handover command, the RUE1 is handed over to the first target cell2. The RUE2 and the RUE3 receive the notification information and trigger the RRC reestablishment procedure.
Referring to fig. 3, another cell handover method according to an embodiment of the present invention is provided, and detailed description is made below through specific steps with reference to fig. 3.
In the embodiment of the present invention, the cell handover method provided in the following steps S301 to S303 may be performed by the serving base station. Specifically, the following steps S301 to S303 may be performed by a chip (such as a baseband chip) having data processing capability in the serving base station, or by a chip module including the data processing chip in the serving base station.
In step S301, a measurement report of a remote device served by the relay device is acquired.
In the embodiment of the invention, the relay device is a relay device supporting the R18 function. Among the remote devices that access the network through the relay device, a remote device that supports only the R17 function, a remote device that supports R18 (which also supports the R17 function), and the like may be included.
The serving cell may send measurement configuration information to the relay device during the operation of the relay device. And the relay equipment executes corresponding measurement operation according to the received measurement configuration information and obtains a measurement report corresponding to the measurement operation. The measurement report may trigger the serving cell to initiate a cell handover.
In a specific implementation, the specific process of configuring measurement configuration information for the relay device by the serving cell and the specific content in the measurement configuration information may refer to the existing protocol correspondingly, which is not further described herein.
In the embodiment of the invention, after receiving the measurement configuration information, the relay device can measure the quality of the PC5 link with the remote device currently serving in addition to measuring the measurement identifier configured in the measurement configuration information.
When the relay device detects that the reporting condition is satisfied, the relay device may report a measurement report. If the measurement report is associated with the timer T312, the relay device may report the PC5 link information corresponding to the remote device that remains connected to the relay device while reporting the measurement report. Alternatively, when the measurement report is triggered by a measurement event, the relay device reports PC5 link information with the currently serving remote device. The PC5 link information may be carried by the measurement report or independent of the measurement report.
In the embodiment of the invention, the relay device can also report the indication information, and the indication information can be used for indicating that the quality of PC5 links between the relay device and all the remote devices exceeds a preset threshold; alternatively, the indication information may be used to indicate that the quality of the PC5 link between the relay device and all the remote devices does not exceed the preset threshold.
The relay device may not report PC5 link information with the remote device. If the relay device does not report the PC5 link information between the relay device and the remote devices, it may be characterized that the quality of the PC5 links between the relay device and all the remote devices exceeds (including is equal to) a preset threshold, or that the quality of the PC5 links between the relay device and all the remote devices does not exceed the preset threshold.
In the embodiment of the invention, the relay device can only report the PC5 link information that the PC5 link quality exceeds (including being equal to) the preset threshold, and the relay device can also only report the PC5 link information that the PC5 link quality is smaller than the preset threshold. The relay device may also report PC5 link information with all remote devices. It should be noted that, the preset threshold may be configured in advance by the serving cell or set in advance by the protocol.
In an embodiment of the invention, the PC5 link quality may be characterized by a reference signal received power. In other embodiments of the invention, the PC5 link quality may also be characterized by other parameters that characterize the link quality.
In a specific implementation, the remote device may also report a measurement report, where the measurement report reported by the remote device may include PC5 link information between the remote device and the relay device.
Step S302, determining a first remote device to be handed over to the first target cell together with the relay device according to the measurement report.
In a specific implementation, if at least PC5 link information exists in the measurement report reported by the relay device and the measurement report reported by the remote device, the serving cell may make the following decision according to the measurement report and the PC5 link quality between each remote device and the relay device: which remote devices can switch with the relay device and continue to access the network through the relay device; which remote devices and relay devices are both handed over to the first target cell, but not through the relay device to access the network; which remote devices switch to a second target cell different from the first target cell; which remote devices release the connection with the relay device; which remote devices trigger RRC reestablishment.
Step S303, a handover request signaling is sent to the first target cell.
In a specific implementation, the serving cell sends a handover request signaling to the first target cell according to the decision made. The service cell determines that cell switching is performed on the relay device and the first remote device, the first remote device is the remote device with the quality of the PC5 link between the first remote device and the relay device being higher than (including being equal to) a preset threshold, and the number of the first remote device can be 1 or more.
For the scenario that both the relay device and the first remote device switch to the first target cell: the serving cell may generate a handover request signaling, and instruct, via the handover request signaling, whether to handover the relay device and the first remote device to the first target cell, and whether the first remote device continues to access the network via the relay device.
If the serving cell instructs the relay device and the remote device to switch to the first target cell through a Handover request signaling (possibly referred to as a Group Handover), the serving cell may instruct the remote device to switch to the first target cell and continue to be served by the relay device, or instruct whether to continue to be served by the relay device, i.e. continue to access the network through the relay device, according to the identity of the remote device in the Handover request signaling.
In the embodiment of the present invention, if the handover request signaling (group handover) contains the identities of the relay device and the remote devices, it means that these remote devices continue to be served by the relay device after the handover.
Alternatively, if the handover request signaling (group handover) contains identities of the relay device and the remote devices, it means that these remote devices do not continue to be accessed to the network by the relay device after the handover. The serving cell may also generate a plurality of handover request signaling, where one handover request signaling indicates to handover the relay device to the first target cell, and the remaining handover request signaling indicates to handover the corresponding first remote device to the first target cell.
In the embodiment of the invention, the serving cell sends a first switching request signaling and a second switching request signaling to the first target cell respectively, wherein the first switching request signaling is used for indicating that the relay equipment is requested to be switched to the first target cell, and the second switching request signaling is used for indicating that the first remote equipment is switched to the first target cell. In the second handover request signaling, the serving cell may also indicate whether the first remote device continues to access the network through the relay device.
Step S304, after receiving the handover request acknowledgement returned by the first target cell, issues a first handover command and a second handover command to the relay device and the first remote device, respectively.
In a specific implementation, after receiving the handover request acknowledgement fed back by the first target cell, the serving cell may issue a first handover command to the relay device. In the first handover command, corresponding processing schemes for different remote devices may be carried.
In a specific implementation, after the second handover command is issued to the first remote device, the first handover command is issued to the relay device.
In specific implementation, the details of the steps S301 to S303 may be referred to the descriptions in the steps S101 to S102 correspondingly, which are not described herein.
The embodiment of the invention also provides a cell measurement method which is applied to the relay equipment and comprises the following steps: and when the measurement report is reported, reporting the PC5 link information between the remote equipment and the current service.
In the embodiment of the invention, the relay device is a relay device supporting the R18 function. Among the remote devices that access the network through the relay device, a remote device that supports only the R17 function, a remote device that supports R18 (which also supports the R17 function), and the like may be included.
The serving cell may send measurement configuration information to the relay device during the operation of the relay device. And the relay equipment executes corresponding measurement operation according to the received measurement configuration information and obtains a measurement report corresponding to the measurement operation. The measurement report may trigger the serving cell to initiate a cell handover.
For example, the measurement configuration information includes one or more measurement identities Measurement Identity, one measurement identity associated with each measurement frequency point and a reporting condition. The serving cell may configure whether the measurement identity is associated with a timer T312.
In a specific implementation, the specific process of configuring measurement configuration information for the relay device by the serving cell and the specific content in the measurement configuration information may refer to the existing protocol correspondingly, which is not further described herein.
In the embodiment of the invention, after receiving the measurement configuration information, the relay device can measure the quality of the PC5 link with the remote device currently serving in addition to measuring the measurement identifier configured in the measurement configuration information.
When the relay device detects that the reporting condition is satisfied, the relay device may report a measurement report. If the measurement report is associated with the timer T312, the relay device may report the PC5 link information corresponding to the remote device that remains connected to the relay device while reporting the measurement report. Alternatively, when the measurement report is triggered by a measurement event, the relay device reports PC5 link information with the currently serving remote device. The PC5 link information may be carried by the measurement report or independent of the measurement report.
In the embodiment of the invention, the relay device can also report the indication information, and the indication information can be used for indicating that the quality of the PC5 links between the relay device and all the remote devices exceeds (comprises equal to) a preset threshold; alternatively, the indication information may be used to indicate that the quality of the PC5 link between the relay device and all the remote devices does not exceed the preset threshold.
The relay device may not report PC5 link information with the remote device. If the relay device does not report the PC5 link information between the relay device and the remote devices, it may be characterized that the quality of the PC5 links between the relay device and all the remote devices exceeds (including is equal to) a preset threshold, or that the quality of the PC5 links between the relay device and all the remote devices does not exceed the preset threshold.
For example, the remote devices 1, 2, and 3 are connected to the network through the relay device, and the remote devices 1, 2, and 3 are connected. The link quality of the PC5 between the relay device and the remote device 1, the remote device 2 and the remote device 3 exceeds a preset threshold. The relay device reports indication information, and the indication information indicates that the link quality of the PC5 between the relay device and the remote device 1, the remote device 2 and the remote device 3 exceeds a preset threshold.
As another example, the remote device 1, the remote device 2, and the remote device 3 access the network through the relay device, and the remote device 1, the remote device 2, and the remote device 3 are all in a connected state. The link quality of the PC5 between the relay device and the remote device 1, the remote device 2 and the remote device 3 exceeds a preset threshold. The relay device only reports the measurement report, and the measurement report does not carry PC5 link information, the measurement report indicates that the quality of PC5 links between the relay device and the remote device 1, the remote device 2 and the remote device 3 exceeds a preset threshold substantially implicitly.
In the embodiment of the invention, the relay device can only report the PC5 link information of which the PC5 link quality exceeds the preset threshold, and the relay device can also only report the PC5 link information of which the PC5 link quality is less than the preset threshold. The relay device may also report PC5 link information with all remote devices. It should be noted that, the preset threshold may be configured in advance by the serving cell or set in advance by the protocol.
Only reporting the PC5 link information with the PC5 link quality exceeding the preset threshold, or only reporting the PC5 link information with the PC5 link quality smaller than the preset threshold, the uplink resource overhead required by the relay equipment reporting can be reduced.
For example, among the remote devices currently served by the relay device, the remote device 1, the remote device 2, and the remote device 3 are all in a connected state. After receiving the measurement configuration information, the relay device performs a corresponding measurement operation, and measures the PC5 link quality between the relay device and the remote device 1, the PC5 link quality between the relay device and the remote device 2, and the PC5 link quality between the relay device and the remote device 3.
When the relay equipment detects that the service cell or the adjacent cell meets the reporting condition, the measurement result of the service cell and/or the adjacent cell is reported through the measurement report. The quality of the PC5 link between the relay device and the remote device 1 is larger than a preset threshold, the quality of the PC5 link between the relay device and the remote device 2 is smaller than the preset threshold, and the relay device simultaneously reports the PC5 link information between the relay device and the remote device 1 when reporting the measurement result of the service cell and/or the neighbor cell meeting the reporting condition when the quality of the PC5 link between the relay device and the remote device 3 is smaller than the preset threshold.
In an embodiment of the invention, the PC5 link quality may be characterized by a reference signal received power. In other embodiments of the invention, the PC5 link quality may also be characterized by other parameters that characterize the link quality.
In a specific implementation, the remote device may also report a measurement report, where the measurement report reported by the remote device may include PC5 link information between the remote device and the relay device.
Referring to fig. 4, a cell switching apparatus 40 according to an embodiment of the present invention is provided, including: a receiving unit 401, wherein:
a receiving unit 401, configured to receive a first switching command, where the first switching command indicates a processing scheme of a remote device; the remote device accesses a network through the relay device.
In a specific implementation, the cell switching device 40 may correspond to a chip with a data processing function in the relay device, such as a baseband chip; or corresponds to a chip module including a chip (such as a baseband chip) having a data processing function in the relay device, or corresponds to the relay device.
Referring to fig. 5, another cell switching apparatus 50 according to an embodiment of the present invention is provided, including: an acquisition unit 501, a determination unit 502, a first transmission unit 503, and a second transmission unit 504, wherein:
An obtaining unit 501, configured to obtain a measurement report of a relay device and a remote device served by the relay device;
a determining unit 502, configured to determine, according to the measurement report, a first remote device that is handed over to a first target cell together with the relay device;
a first sending unit 503, configured to send a handover request signaling to a first target cell; the handover request signaling is used for indicating the first remote device to be handed over to the first target cell or indicating the first remote device to continue to access a network through the relay device;
and a second sending unit 504, configured to send a first handover command and a second handover command to the relay device and the first remote device, respectively, after receiving a handover request acknowledgement returned by the first target cell.
In a specific implementation, the specific execution procedures of the acquisition unit 501, the determination unit 502, the first transmission unit 503, and the second transmission unit 504 may refer to the steps S301 to S304 correspondingly.
In a specific implementation, the cell switching apparatus 50 may correspond to a chip with a data processing function in the access network device; or corresponds to a chip module in the access network device comprising a chip with data processing functions, or corresponds to the access network device. The access network device may be a base station.
The embodiment of the invention also provides a cell switching device, which comprises: and the reporting unit is used for reporting the PC5 link information between the remote equipment and the current service. The cell switching device may correspond to a chip having a data processing function in the relay apparatus, such as a baseband chip; or corresponds to a chip module including a chip (such as a baseband chip) having a data processing function in the relay device, or corresponds to the relay device.
In a specific implementation, regarding each apparatus and each module/unit included in each product described in the above embodiments, it may be a software module/unit, or a hardware module/unit, or may be a software module/unit partially, or a hardware module/unit partially.
For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal, each module/unit included in the device, product, or application may be implemented by using hardware such as a circuit, different modules/units may be located in the same component (for example, a chip, a circuit module, or the like) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program, where the software program runs on a processor integrated inside the terminal, and the remaining (if any) part of the modules/units may be implemented by using hardware such as a circuit.
The embodiment of the invention also provides a computer readable storage medium, which is a non-volatile storage medium or a non-transient storage medium, and a computer program is stored on the computer readable storage medium, and the computer program is executed by a processor to execute the steps of the cell handover method provided by any embodiment.
The embodiment of the invention also provides a cell switching device, which comprises a memory and a processor, wherein the memory stores a computer program which can be run on the processor, and the processor executes the steps of the cell switching method provided by any embodiment when running the computer program.
Those of ordinary skill in the art will appreciate that all or a portion of the steps in the various methods of the above embodiments may be implemented by a program that instructs related hardware, the program may be stored on a computer readable storage medium, and the storage medium may include: ROM, RAM, magnetic or optical disks, etc.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.

Claims (25)

1. A cell switching method, applied to a relay device, the method comprising: receiving a first switching command;
the first switch command indicates a processing scheme of the remote device; the remote device accesses a network through the relay device.
2. The cell switching method according to claim 1, further comprising, before receiving the first switching command:
and reporting the PC5 link information between the remote equipment and the current service.
3. The cell switching method according to claim 2, wherein reporting PC5 link information with a currently serving remote device comprises:
receiving measurement configuration information and performing measurement;
and when the reporting condition is met, reporting a measurement report and the PC5 link information between the remote equipment and the current service.
4. The cell switching method as claimed in claim 3, wherein the reporting of the PC5 link information with the currently serving remote device comprises:
at the measurement report association timer T312, PC5 link information with the currently serving remote device is reported, or,
and when the measurement report is triggered by a measurement event, reporting the PC5 link information between the remote equipment and the current service.
5. The cell switching method according to claim 2, wherein reporting PC5 link information with a currently serving remote device comprises:
only reporting the PC5 link information of which the PC5 link quality exceeds a preset threshold; or alternatively, the first and second heat exchangers may be,
only reporting the PC5 link information of which the PC5 link quality is smaller than the preset threshold; or alternatively, the first and second heat exchangers may be,
and reporting the PC5 link information between the remote devices and all the remote devices currently served.
6. The cell switching method of claim 5 wherein the PC5 link quality is characterized by a reference signal received power.
7. The cell handover method of claim 1, wherein the processing scheme of the remote device comprises any one of:
the remote equipment executes switching operation; the remote device performing a handover operation includes any one of: continuing to access a network through the relay device; switching to the same target cell with the relay equipment, and not accessing to a network through the relay equipment; switching to a different target cell from the relay device;
the remote device releases the connection with the relay device;
the remote device triggers RRC reestablishment.
8. The cell handover method of claim 7, wherein the processing scheme of the remote device is to forward signaling corresponding to a first remote device to the first remote device when performing a handover operation.
9. The cell switching method of claim 8, wherein the forwarding signaling corresponding to the first remote device comprises:
the signaling is forwarded to the first remote device before executing the first handover command.
10. A cell switching method applied to a base station, comprising:
acquiring a measurement report of a relay device and a remote device served by the relay device;
determining a first remote device which is switched to a first target cell together with the relay device according to the measurement report;
transmitting a handover request signaling to a first target cell; the handover request signaling is used for indicating the first remote device to be handed over to the first target cell or indicating the first remote device to continue to access a network through the relay device;
and after receiving a switching request confirmation returned by the first target cell, respectively issuing a first switching command and a second switching command to the relay equipment and the first remote equipment.
11. The cell handover method of claim 10, wherein the issuing of the first handover command and the second handover command to the relay device and the first remote device, respectively, comprises:
And after the second switching command is issued to the first remote equipment, issuing the first switching command to the relay equipment.
12. The method of cell handover according to claim 10, wherein the sending handover request signaling to the first target cell comprises:
transmitting a first switching request signaling and a second switching request signaling to the first target cell, wherein the first switching request signaling is used for indicating a request for switching the relay equipment to the first target cell; the second handover request signaling is configured to instruct handover of the first remote device to the first target cell, and instruct whether the first remote device accesses the relay device.
13. The cell handover method of claim 10, wherein if only one of the handover request signaling is employed, then characterizing that the first remote device continues to access the network through the relay device or characterizing that the first remote device is handed over to the first target cell and does not need to access the network through the relay device when the handover request signaling includes an identification of the first remote device.
14. The cell handover method of claim 10, wherein the measurement report of the remote device served by the relay device comprises: and PC5 link information between the relay device and the remote device.
15. A cell switching method, applied to a relay device, the method comprising: and when the measurement report is reported, reporting the PC5 link information between the remote equipment and the current service.
16. The cell switching method according to claim 15, wherein reporting PC5 link information with a currently serving remote device comprises:
receiving measurement configuration information and performing measurement; and when the reporting condition is met, reporting a measurement report and the PC5 link information between the remote equipment and the current service.
17. The cell switching method according to claim 15, wherein reporting PC5 link information with a currently serving remote device comprises:
at the measurement report association timer T312, PC5 link information with the currently serving remote device is reported, or,
and when the measurement report is triggered by a measurement event, reporting the PC5 link information between the remote equipment and the current service.
18. The cell handover method of claim 15, wherein reporting PC5 link information with a currently serving remote device comprises any one of:
Only reporting the PC5 link information of which the PC5 link quality exceeds a preset threshold; or alternatively, the first and second heat exchangers may be,
only reporting the PC5 link information of which the PC5 link quality is smaller than the preset threshold; or alternatively, the first and second heat exchangers may be,
reporting PC5 link information between the remote devices and the current service; or alternatively, the first and second heat exchangers may be,
reporting indication information, wherein the indication information is used for indicating that the quality of the PC5 links between the remote equipment and all the remote equipment exceeds a preset threshold or indicating that the quality of the PC5 links between the remote equipment and all the remote equipment does not exceed the preset threshold.
19. The cell switching method according to claim 15, wherein reporting PC5 link information with a currently serving remote device comprises: if the PC5 link information is not reported, the quality of the PC5 link between the characterization and the remote equipment currently served exceeds a preset threshold; alternatively, none of the PC5 link quality characteristics with the currently serving remote device exceeds a preset threshold.
20. The cell handover method according to claim 18 or 19, wherein the PC5 link quality is characterized by a reference signal received power.
21. A cell switching apparatus, comprising:
a receiving unit configured to receive a first switching command; the first switch command indicates a processing scheme of the remote device; the remote device accesses the network through the relay device.
22. A cell switching apparatus, comprising:
an acquisition unit, configured to acquire a measurement report of a relay device and a remote device served by the relay device;
a determining unit, configured to determine, according to the measurement report, a first remote device that is handed over to a first target cell together with the relay device;
a first sending unit, configured to send a handover request signaling to a first target cell; the handover request signaling is used for indicating the first remote device to be handed over to the first target cell or indicating the first remote device to continue to access a network through the relay device;
and the second sending unit is used for respectively sending a first switching command and a second switching command to the relay equipment and the first remote equipment after receiving the switching request confirmation returned by the first target cell.
23. A cell switching apparatus, comprising:
and the reporting unit is used for reporting the PC5 link information between the remote equipment and the current service.
24. A computer readable storage medium, being a non-volatile storage medium or a non-transitory storage medium, having stored thereon a computer program, characterized in that the computer program when executed by a processor performs the steps of the cell handover method according to any of claims 1 to 20.
25. A cell handover apparatus comprising a memory and a processor, said memory having stored thereon a computer program executable on said processor, characterized in that said processor, when executing said computer program, performs the steps of the cell handover method according to any of claims 1-9; alternatively, the steps of performing the cell handover method of any of claims 10 to 13; alternatively, the steps of the cell handover method according to any of claims 16 to 20 are performed.
CN202210176313.7A 2022-02-24 2022-02-24 Cell switching method and device and computer readable storage medium Pending CN116709435A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210176313.7A CN116709435A (en) 2022-02-24 2022-02-24 Cell switching method and device and computer readable storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210176313.7A CN116709435A (en) 2022-02-24 2022-02-24 Cell switching method and device and computer readable storage medium

Publications (1)

Publication Number Publication Date
CN116709435A true CN116709435A (en) 2023-09-05

Family

ID=87836160

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210176313.7A Pending CN116709435A (en) 2022-02-24 2022-02-24 Cell switching method and device and computer readable storage medium

Country Status (1)

Country Link
CN (1) CN116709435A (en)

Similar Documents

Publication Publication Date Title
US11051219B2 (en) Method and apparatus for controlling mobility for cell having small cell service area in mobile communication system
US10743228B2 (en) Method and device for switching of multi-carrier
KR102564318B1 (en) Apparatus and method for supporting handover with multi-connectivity
US20190222291A1 (en) Method and apparatus for supporting movement of user equipment in wireless communications
US10091681B2 (en) Mobile terminals and methods for performing a measurement
CN104854906B (en) A kind of method and device of switching cell
EP2288201B1 (en) UE measurements for hot spot detection
CN103281782A (en) Method, equipment and system for managing uplink carrier frequency
US9706461B2 (en) Method of handover in device to device communication, base station and communication system
KR20130093654A (en) Method, terminal device and base station for reporting radio link failure information
KR102301836B1 (en) Method and apparatus for controlling SCell in a mobile communication system
JP2013523030A (en) Radio resource setting method and setting device at handover
CN110140411B (en) Connection establishment in 5G radio access network
CN102098722A (en) Method for processing minimization drive test (MDT) information and equipment
CN107005957B (en) Communication method and apparatus
WO2018045572A1 (en) Terminal access method and network device
CN106792947B (en) RRC connection reestablishment method and base station
CN116709435A (en) Cell switching method and device and computer readable storage medium
CN107155189B (en) Communication method and device applied to super cell
JP2019528009A (en) Method and terminal for obtaining cell
CN116939633A (en) Cell switching method and device and computer readable storage medium
RU2722418C2 (en) Alarm optimization method and device
CN117354881A (en) Switching method and device, computer device and readable storage medium
RU2527752C2 (en) Method, system and node b for indicating state information
CN117998482A (en) Communication method, communication device, computer-readable storage medium, and computer program product

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination