CN113747520A - Cell reselection method and related device - Google Patents

Cell reselection method and related device Download PDF

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Publication number
CN113747520A
CN113747520A CN202010476646.2A CN202010476646A CN113747520A CN 113747520 A CN113747520 A CN 113747520A CN 202010476646 A CN202010476646 A CN 202010476646A CN 113747520 A CN113747520 A CN 113747520A
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China
Prior art keywords
quality
frequency resource
reference signal
cell
signal corresponding
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CN202010476646.2A
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Chinese (zh)
Inventor
谢宗慧
王宏
陈磊
李秉肇
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN202010476646.2A priority Critical patent/CN113747520A/en
Publication of CN113747520A publication Critical patent/CN113747520A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data

Abstract

The application provides a cell reselection method and a related device, wherein the method comprises the following steps: if the frequency resource carrying the paging message is different from the main frequency resource, measuring the quality of a reference signal corresponding to the frequency resource; starting neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource; and performing cell reselection according to the result of the neighbor cell measurement. When the frequency resource for bearing the paging message is different from the main frequency resource, the problem that the terminal equipment cannot decode the paging message when the cell reselection is not triggered is solved.

Description

Cell reselection method and related device
Technical Field
The present application relates to the field of communications technologies, and in particular, to a cell reselection method and a related apparatus.
Background
Currently, a terminal device performs cell selection and reselection only based on the quality of a reference signal of a primary frequency resource. For example, in new radio access technology (NR), the terminal device performs cell selection and reselection based on the quality of a reference signal of an initial (initial) partial Bandwidth (BWP) only. In the narrowband internet of things (NB-IoT), a terminal device performs cell selection and reselection only based on the quality of a reference signal of an anchor-carrier. And the terminal device may receive the paging message on the non-primary frequency resource. For example, in NB-IoT, a terminal device may receive a paging message on a non-anchor-carrier (non-anchor-carrier). Therefore, it can be understood that, when the frequency resource carrying the paging message is different from the primary frequency resource, the terminal device only performs cell reselection based on the reference signal quality of the primary frequency resource. This may result in the terminal device having been unable to decode the paging message when cell reselection has not been triggered.
Disclosure of Invention
The embodiment of the application is implemented to realize that when the frequency resource for bearing the paging message is different from the main frequency resource, the problem that the paging message cannot be decoded already when the cell reselection is not triggered by the terminal equipment is avoided.
In a first aspect, a cell reselection method is provided, including:
if the frequency resource carrying the paging message is different from the main frequency resource, measuring the quality of a reference signal corresponding to the frequency resource;
starting neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource;
and performing cell reselection according to the result of the neighbor cell measurement.
It can be seen that, in the above technical solution, when the frequency resource carrying the paging message is different from the primary frequency resource, the problem that the terminal device cannot decode the paging message already when the cell reselection has not been triggered is avoided.
Optionally, in a possible implementation manner, the neighboring cell is a neighboring cell of a cell, and after the starting of the neighboring cell measurement, the method further includes:
determining the cell as forbidden in a preset time; or the like, or, alternatively,
and determining the service quality corresponding to the cell according to the quality and the offset of the reference signal corresponding to the main frequency resource in the preset time.
It can be seen that, in the above technical solution, after the neighbor cell measurement is started, the terminal device is prevented from selecting or reselecting the cell.
Optionally, in a possible implementation manner, the cell is a serving cell, and the method further includes:
determining the service quality corresponding to the cell according to the quality of the reference signal corresponding to the frequency resource within the preset time;
and determining the service quality corresponding to the cell according to the average value or the weighted average value of the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource in the preset time.
It can be seen that, in the above technical solution, after the neighbor cell measurement is started, the terminal device is prevented from selecting the cell.
Optionally, in a possible implementation manner, the measuring the quality of the reference signal corresponding to the frequency resource includes:
and alternately measuring the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource.
It can be seen that, in the above technical solution, when the frequency resource carrying the paging message is different from the primary frequency resource, the quality of the reference signal corresponding to the frequency resource carrying the paging message and the quality of the reference signal corresponding to the primary frequency resource are alternately measured.
Optionally, in a possible implementation manner, the starting, according to the quality of the reference signal corresponding to the frequency resource, the neighbor cell measurement includes:
determining the quality of the reference signal with the worst quality in the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource;
and if the quality of the reference signal with the worst quality is lower than the threshold, starting the neighbor cell measurement.
It can be seen that, in the above technical solution, the neighbor cell measurement is started based on the quality of the reference signal with the worst quality in the quality of the reference signal corresponding to the frequency resource carrying the paging message and the quality of the reference signal corresponding to the main frequency resource, so as to prepare for the subsequent cell reselection.
Optionally, in a possible implementation manner, the starting, according to the quality of the reference signal corresponding to the frequency resource, the neighbor cell measurement includes:
and if the quality of the reference signal corresponding to the frequency resource is lower than a threshold, starting the neighbor cell measurement.
It can be seen that, in the above technical solution, the neighbor cell measurement is started according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, so as to prepare for the subsequent cell reselection.
Optionally, in a possible implementation, the method further includes:
and receiving indication information sent by access network equipment, wherein the indication information is used for indicating the access network equipment to support the terminal equipment to start the neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource.
It can be seen that, in the above technical solution, by receiving the indication information, when the access network device supports the terminal device to start the neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, the terminal device may start the neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, thereby preparing for subsequent cell reselection.
Optionally, in a possible implementation, the method further includes: and receiving the preset time and the threshold sent by the access network equipment.
It can be understood that the terminal device may receive the first system message sent by the access network device, where the first system message includes the preset time and the threshold. The terminal device may receive a second system message and a third system message sent by the access network device, where the second system message includes the preset time, and the third system message includes the threshold.
It can be seen that, in the above technical solution, sending the preset time and the threshold to the terminal device is realized, and preparation is made for the subsequent terminal device to start the neighbor cell measurement, the cell selection, and the cell reselection.
In a second aspect, a terminal device is provided, the terminal device comprising a processing module,
the processing module is used for measuring the quality of a reference signal corresponding to the frequency resource if the frequency resource carrying the paging message is different from the main frequency resource; starting neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource; and performing cell reselection according to the result of the neighbor cell measurement.
Optionally, in a possible implementation manner, the neighboring cell is a neighboring cell of a cell, and after the neighboring cell measurement is started, the processing module is further configured to start the measurement of the neighboring cell
Determining the cell as forbidden in a preset time; or the like, or, alternatively,
and determining the service quality corresponding to the cell according to the quality and the offset of the reference signal corresponding to the main frequency resource in the preset time.
Optionally, in a possible implementation manner, the cell is a serving cell, and the processing module is further configured to determine whether the serving cell is a serving cell
Determining the service quality corresponding to the cell according to the quality of the reference signal corresponding to the frequency resource within the preset time; or the like, or, alternatively,
and determining the service quality corresponding to the cell according to the average value or the weighted average value of the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource in the preset time.
Optionally, in a possible implementation manner, when the quality of the reference signal corresponding to the frequency resource is measured, the processing module is configured to alternately measure the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource.
Optionally, in a possible implementation manner, when the neighbor cell measurement is started according to the quality of the reference signal corresponding to the frequency resource, the processing module is configured to determine the quality of the reference signal with the worst quality from the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource; and if the quality of the reference signal with the worst quality is lower than the threshold, starting the neighbor cell measurement.
Optionally, in a possible implementation manner, when the neighbor cell measurement is started according to the quality of the reference signal corresponding to the frequency resource, the processing module is configured to start the neighbor cell measurement if the quality of the reference signal corresponding to the frequency resource is lower than a threshold.
Optionally, in a possible implementation manner, the terminal device further includes a transceiver module, where the transceiver module is configured to receive indication information sent by an access network device, and the indication information is used to indicate that the access network device supports the terminal device to start the neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource.
Optionally, in a possible implementation manner, the transceiver module is further configured to receive a preset time and a threshold sent by the access network device.
In a third aspect, a cell reselection method is provided, including:
and sending indication information to the terminal equipment, wherein the indication information is used for indicating that the access network equipment supports the terminal equipment to start the neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource bearing the paging message.
It can be seen that, in the above technical solution, by sending the indication information, when the access network device supports the terminal device to start the neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, the terminal device may start the neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, thereby preparing for subsequent cell reselection.
Optionally, in a possible implementation, the method further includes: and sending preset time and a threshold to the terminal equipment.
It is understood that the access network device may send a first system message to the terminal device, where the first system message includes the preset time and the threshold. The access network device may also send a second system message and a third system message to the terminal device, where the second system message includes the preset time, and the third system message includes the threshold.
It can be seen that, in the above technical solution, sending the preset time and the threshold to the terminal device is realized, and preparation is made for the subsequent terminal device to start the neighbor cell measurement, the cell selection, and the cell reselection.
In a fourth aspect, an access network device is provided, where the access network device includes a transceiver module, and the transceiver module is configured to send indication information to a terminal device, where the indication information is used to indicate that the access network device supports the terminal device to start neighbor cell measurement according to quality of a reference signal corresponding to a frequency resource carrying a paging message.
Optionally, in a possible implementation manner, the transceiver module is further configured to send a preset time and a threshold to the terminal device.
It is to be understood that the transceiver module may be configured to send a first system message to a terminal device, where the first system message includes the preset time and the threshold. The transceiver module may also be configured to send a second system message and a third system message to the terminal device, where the second system message includes the preset time, and the third system message includes the threshold.
In a fifth aspect, a terminal device is provided, which includes a processor, a memory, an input interface, and an output interface, where the input interface is configured to receive information from a communication apparatus other than the terminal device, and the output interface is configured to output information to the communication apparatus other than the terminal device, and the processor calls a computer program stored in the memory to implement the method according to any one of the first aspect.
A sixth aspect provides a computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is executed, the method according to any one of the first aspect is implemented.
Drawings
Reference will now be made in brief to the drawings that are needed in describing embodiments or prior art.
Wherein:
fig. 1 is an infrastructure of a communication system provided by an embodiment of the present application;
fig. 2 is a schematic diagram of a cell reselection method provided in an embodiment of the present application;
fig. 3 is a schematic diagram of another cell reselection method provided in an embodiment of the present application;
fig. 4 is a schematic diagram of another cell reselection method provided in an embodiment of the present application;
fig. 5 is a schematic diagram of another cell reselection method provided in an embodiment of the present application;
fig. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an access network device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a simplified terminal device provided in an embodiment of the present application;
fig. 9 is a schematic structural diagram of a simplified access network device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
First, the technical solution of the embodiment of the present application may be applied to a Long Term Evolution (LTE) architecture, and may also be applied to a Universal Mobile Telecommunications System (UMTS) terrestrial radio access network (UMTS) architecture, or a global system for mobile communications (GSM) architecture, an enhanced data rate GSM evolution (enhanced data rate for GSM evolution, EDGE) system radio access network (GSM EDGE radio access network, GERAN) architecture, or a fifth generation mobile communication technology (5th generation mobile communications, 5G), and so on. In the UTRAN architecture or GERAN architecture, the function of the Mobility Management Entity (MME) is performed by a serving General Packet Radio Service (GPRS) support node (SGSN), and the function of the SGW/PGW is performed by a Gateway GPRS Support Node (GGSN). The technical solution of the embodiment of the present application may also be applied to other communication systems, for example, a Public Land Mobile Network (PLMN) system, even a communication system after 5G, and the like, which is not limited in the embodiment of the present application.
To facilitate an understanding of the present application, relevant technical knowledge related to the embodiments of the present application is introduced herein.
In the existing scheme, when the terminal device is in an idle state or an inactive state, the terminal device only performs cell selection and reselection based on the quality of the reference signal of the primary frequency resource. For example, in new radio access technology (NR), the terminal device performs cell selection and reselection based on the quality of a reference signal of an initial (initial) partial Bandwidth (BWP) only. In the narrowband internet of things (NB-IoT), a terminal device performs cell selection and reselection only based on the quality of a reference signal of an anchor-carrier. And the terminal device may listen for paging messages on the non-primary frequency resource. For example, in NB-IoT, a terminal device may listen for paging messages on a non-anchor-carrier (non-anchor-carrier). Therefore, it can be understood that, when the frequency resource carrying the paging message is different from the primary frequency resource, the terminal device only performs cell reselection based on the reference signal quality of the primary frequency resource. This may result in the terminal device having been unable to decode the paging message when cell reselection has not been triggered.
Based on this, the present invention provides a cell reselection method to solve the above problem, and the following describes the present invention in detail.
Referring to fig. 1, fig. 1 is an infrastructure of a communication system provided in an embodiment of the present application. As shown in fig. 1, the communication system may include a terminal device 10, an access network device 11, and a core network device 12. Wherein the terminal device 10 is in an idle state or an inactive state. The access network device 11 may be connected to the core network device 12 in a wired manner, such as an NG-interface or an NG-U interface. The access network device 11 may be connected with other access network devices through a wired manner, such as an Xn interface. It is understood that the access network device 11 may communicate with the terminal device 10 and the core network device 12, respectively. For example, the core network device 12 may initiate paging.
Further, the terminal device 10 may be a device that includes a wireless transceiving function and can cooperate with the access network device 11 to provide a communication service for a user. In particular, a terminal device may refer to a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a terminal, a wireless communication device, a user agent, or a user equipment. For example, the terminal device may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal in a 5G network or a terminal in a PLMN evolved in the future, and the like, and the embodiment of the present application is not limited thereto.
The access network device 11 may be a device for communicating with the terminal device 10 and the core network device 12, and for example, may be a base station (BTS) in a GSM system or a CDMA system, a base station (nodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, an evolved base station (eNB, eNodeB) in an LTE system, a radio controller in a Cloud Radio Access Network (CRAN) scenario, a (new radio node B, gNB) in 5G, or the access network device 11 may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network-side device in a network after 5G, or an access network device in a PLMN network in the future.
The core network device 12 corresponds to different devices in different communication systems, for example, a Serving GPRS Support Node (SGSN) and/or a Gateway GPRS Support Node (GGSN) in a 3G system, an MME or an S-GW in a 4G system, and an access and mobility management function (AMF), a Session Management Function (SMF), or a mobility management entity (UPF) in a 5G system.
Next, the neighbor cell measurement is started based on the quality of the reference signal with the worst quality in the quality of the reference signal corresponding to the frequency resource carrying the paging message and the quality of the reference signal corresponding to the primary frequency resource. It is understood that in the present application, the primary frequency resource may be initials bwp in NR, and may also be anchorcarrier in NB-IoT, which is not limited herein. Similarly, the frequency resource carrying the paging message may be a BWP other than the initial BWP in the NR, or a non-anchor carrier in the NB-IoT, which is not limited herein.
Further, referring to fig. 2, fig. 2 is a schematic diagram of a cell reselection method according to an embodiment of the present application. Referring to fig. 1, the terminal device in fig. 2 is the terminal device 10 in fig. 1, and the access network device in fig. 2 is the access network device 11 in fig. 1. As shown in fig. 2, the method includes, but is not limited to, the following steps:
201. if the frequency resource carrying the paging message is different from the main frequency resource, the terminal device alternately measures the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource.
The reference signal corresponding to the frequency resource and the reference signal corresponding to the main frequency resource may include one of: a cell-specific reference signal (CRS), a Synchronization Signal Block (SSB), a channel state reference signal (CSI-RS), and the like. Further, the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource may include at least one of: reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), signal to interference plus noise ratio (SINR).
It should be noted that before the terminal device alternately measures the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource, the terminal device measures the quality of the reference signal corresponding to the main frequency resource, and performs cell selection or reselection according to the quality of the reference signal corresponding to the main frequency resource, so as to reside in the current serving cell. Specifically, referring to fig. 3, fig. 3 is a schematic diagram of another cell reselection method provided in the embodiment of the present application. As shown in fig. 3, the grey rectangles represent the quality of the reference signal corresponding to the main frequency resource, and the rectangles filled with slashes represent the quality of the reference signal corresponding to the frequency resource carrying the paging message. It can be understood that, before the terminal device performs cell reselection according to the quality of the reference signal corresponding to the main frequency resource, the terminal device measures the quality of the reference signal corresponding to the main frequency resource. And the terminal equipment reselects the cell according to the quality of the reference signal corresponding to the main frequency resource and resides in the service cell, and at the moment, if the frequency resource bearing the paging message is different from the main frequency resource. The terminal device may alternatively measure the quality of the reference signal corresponding to the frequency resource carrying the paging message and the quality of the reference signal corresponding to the primary frequency resource. Specifically, for example, referring to fig. 3, from left to right, a white rectangle is located below the first rectangle filled with diagonal lines, and the white rectangle represents the quality of the reference signal corresponding to the primary frequency resource. That is, the terminal device measures the quality of the reference signal corresponding to the frequency resource carrying the paging message at this time, and does not measure the quality of the reference signal corresponding to the main frequency resource. For another example, referring to fig. 3, from left to right, after the terminal device performs cell reselection according to the quality of the reference signal corresponding to the main frequency resource and resides in the serving cell, a white rectangle is located above the first gray rectangle, and the white rectangle represents the quality of the reference signal corresponding to the frequency resource carrying the paging message. That is, the terminal device measures the quality of the reference signal corresponding to the main frequency resource at this time, and does not measure the quality of the reference signal corresponding to the frequency resource carrying the paging message.
202. The terminal equipment determines the quality of the reference signal with the worst quality in the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource.
203. And if the quality of the reference signal with the worst quality is lower than the threshold, the terminal equipment starts the neighbor measurement.
The threshold may be configured by the access network device or preset by the protocol.
Wherein, the adjacent cell is the adjacent cell of the cell. The terminal device may determine the cell according to the quality of the reference signal corresponding to the primary frequency resource.
It can be understood that, if the quality of the reference signal corresponding to the frequency resource is higher than that of the reference signal corresponding to the main frequency resource, the terminal device may start the neighboring cell measurement when the quality of the reference signal corresponding to the main frequency resource is lower than the threshold, which may be understood as that the cell reselection measurement is triggered due to the poor quality of the reference signal corresponding to the main frequency resource. If the quality of the reference signal corresponding to the frequency resource is lower than the quality of the reference signal corresponding to the main frequency resource, the terminal device may start the neighboring cell measurement when the quality of the reference signal corresponding to the frequency resource is lower than the threshold, which may be understood as that the cell reselection measurement is triggered due to the poor quality of the reference signal corresponding to the frequency resource.
204. And according to the result of the neighbor cell measurement, the terminal equipment performs cell reselection.
It can be seen that, in the above technical solution, when the frequency resource carrying the paging message is different from the primary frequency resource, the neighbor cell measurement is started based on the quality of the reference signal with the worst quality in the quality of the reference signal corresponding to the frequency resource carrying the paging message and the quality of the reference signal corresponding to the primary frequency resource, so as to avoid the problem that the terminal device cannot decode the paging message when the cell reselection is not triggered.
The following describes the starting of neighbor cell measurement based on the quality of the reference signal corresponding to the frequency resource carrying the paging message. Referring to fig. 4, fig. 4 is a schematic diagram of another cell reselection method provided in the embodiment of the present application. Referring to fig. 1, the terminal device in fig. 4 is the terminal device 10 in fig. 1, and the access network device in fig. 4 is the access network device 11 in fig. 1. As shown in fig. 4, the method includes, but is not limited to, the following steps:
401. if the frequency resource carrying the paging message is different from the main frequency resource, the terminal device measures the quality of the reference signal corresponding to the frequency resource.
For reference signals corresponding to the frequency resources, refer to step 201 in fig. 2, which is not described herein again. For the quality of the reference signal corresponding to the frequency resource, refer to step 201 in fig. 2, which is not described herein again.
It should be noted that before the terminal device measures the quality of the reference signal corresponding to the frequency resource, the terminal device measures the quality of the reference signal corresponding to the main frequency resource, and performs cell selection or reselection according to the quality of the reference signal corresponding to the main frequency resource, so as to reside in the current serving cell. Specifically, referring to fig. 5, fig. 5 is a schematic diagram of another cell reselection method provided in the embodiment of the present application. As shown in fig. 5, the grey rectangles represent the quality of the reference signal corresponding to the main frequency resource, and the white rectangles represent the quality of the reference signal corresponding to the frequency resource carrying the paging message. It can be understood that, when the terminal device performs cell selection or reselection according to the quality of the reference signal corresponding to the main frequency resource, and before residing in the current cell, the terminal device measures the quality of the reference signal corresponding to the main frequency resource of the cell. After the terminal device performs cell selection or reselection according to the quality of the reference signal corresponding to the primary frequency resource and resides in the cell, at this time, if the frequency resource carrying the paging message is different from the primary frequency resource, the terminal device may measure the quality of the reference signal corresponding to the frequency resource carrying the paging message.
In addition, step 401 may also be replaced by step 201 of fig. 2. That is, if the frequency resource carrying the paging message is different from the primary frequency resource, the terminal device alternately measures the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the primary frequency resource. Then, steps 402 to 403 are performed.
402. And if the quality of the reference signal corresponding to the frequency resource is lower than the threshold, the terminal equipment starts the neighbor cell measurement.
For the threshold, reference may be made to step 203 in fig. 2, which is not described herein again. For the neighboring cell, reference may be made to step 203 in fig. 2, which is not described herein again.
If the quality of the reference signal corresponding to the frequency resource is lower than the quality of the reference signal corresponding to the main frequency resource, the terminal device may start the neighboring cell measurement when the quality of the reference signal corresponding to the frequency resource is lower than the threshold, which may be understood as that the cell reselection measurement is triggered due to the poor quality of the reference signal corresponding to the frequency resource. It should be noted that, at this time, the quality of the primary frequency resource may still trigger the neighbor cell measurement.
403. And the terminal equipment reselects the cell according to the result of the measurement of the neighboring cell.
It can be seen that, in the above technical solution, when the frequency resource carrying the paging message is different from the primary frequency resource, the neighbor cell measurement is started based on the quality of the reference signal corresponding to the frequency resource carrying the paging message, so that the problem that the terminal device cannot decode the paging message already when the cell reselection is not triggered is avoided.
Optionally, in a possible implementation manner, after the neighbor cell measurement is started, the method further includes:
in the preset time, the terminal equipment determines that the cell is forbidden (barred); or the like, or, alternatively,
and in a preset time, the terminal equipment determines the service quality corresponding to the cell according to the quality and the offset of the reference signal corresponding to the main frequency resource.
It should be noted that starting the neighbor cell measurement means starting the neighbor cell measurement if the quality of the reference signal corresponding to the frequency resource is lower than a threshold. That is, since the quality of the reference signal corresponding to the frequency resource is lower than the threshold, the neighbor cell measurement is triggered, and after the neighbor cell measurement is started, the terminal device determines that the cell is forbidden in a preset time; or, in a preset time, the terminal device determines the service quality corresponding to the cell according to the quality and the offset of the reference signal corresponding to the main frequency resource.
The preset time may be configured or preset by the access network device.
Step 203 in fig. 2 may be referred to for a cell, which is not described herein again.
It can be understood that, if the cell is a serving cell, after the neighbor cell measurement is started, the terminal device may determine that the cell is forbidden within a preset time, and may also determine the service quality corresponding to the cell according to the quality and the offset of the reference signal corresponding to the primary frequency resource.
After the terminal device leaves the cell, the cell is not the serving cell at this time. After the neighbor cell measurement is started, the terminal device may determine that the cell is forbidden within a preset time; or, determining the service quality corresponding to the cell according to the quality of the reference signal corresponding to the main frequency resource and the offset.
For example, if the cell is an a cell, the a cell is a serving cell. At this time, the neighboring cell of the cell a is the cell B. After the neighbor cell measurement is started, the terminal device may determine that the cell a is forbidden within a preset time, and may also determine the service quality corresponding to the cell a according to the quality and offset of the reference signal corresponding to the main frequency resource of the cell a.
After the terminal device leaves the cell a and reselects to the cell B, that is, the cell a is not the serving cell of the terminal device, and the cell a is the neighboring cell of the cell B. After the neighbor cell measurement is started, the terminal device may determine that the cell a is forbidden in the preset time, and may also determine the service quality corresponding to the cell a according to the quality and offset of the reference signal corresponding to the main frequency resource of the cell a.
Further, if the terminal device determines that the cell is forbidden, it may be understood that, if the terminal device considers that the cell state of the cell is "barred" because the quality of the reference signal corresponding to the frequency resource is lower than the threshold, the terminal device excludes the cell from the candidate cell when performing cell reselection within a preset time, and the cell may be a serving cell or may not be the serving cell: for example, the terminal device deletes the cell in the candidate cell list according to the identifier of the cell; or, the terminal device determines the cell as a non-selectable cell according to the identifier of the cell; or, the terminal equipment receives a neighbor cell list including the cell, and determines not to measure the service quality corresponding to the cell according to the identifier of the cell; or the terminal equipment receives the frequency information corresponding to the cell, and cancels the cell from being added to the candidate cell list according to the identifier of the cell when the cell is detected according to the frequency information corresponding to the cell.
The terminal device determines that the cell is forbidden, that is, determines that the cell state of the cell is forbidden.
It should be noted that, within the preset time, the terminal device may store the identifier and the offset of the cell. It can be understood that, if the cell is a serving cell, the terminal device may store the identifier and the offset of the cell within a preset time. If the cell is not the serving cell, the terminal device may store the identifier and the offset of the cell within a preset time.
It can be understood that the candidate cell list is a cell list locally maintained by the terminal device. The neighbor list may be network-side provided.
Further, the determining, by the terminal device, the service quality corresponding to the cell according to the quality and the offset of the reference signal corresponding to the main frequency resource includes: for high-priority reselection and low-priority reselection, the service quality corresponding to the cell is determined by Srxlev and an offset, or by Squal and an offset; aiming at the reselection with the same priority, if the cell is a service cell, the service quality corresponding to the cell is represented by RsAnd determining an offset; if the cell is not the serving cell, the quality of service corresponding to the cell is represented by RnAnd an offset determination.
Srxlev＝Qrxlevmeas–(Qrxlevmin+Qrxlevminoffset)–Pcompensation-Qoffsettemp
Squal＝Qqualmeas–(Qqualmin+Qqualminoffset)-Qoffsettemp
Wherein, Srxlev is a Cell selection reception level value (Cell selection RX level value);
squal is a Cell selection signal quality value (Cell selection quality value);
Qrxlevmeasa measured cell RX level value (RSRP) for a measured cell received level value (reference signal received power);
Qrxlevmina minimum required RX level in the cell;
Qrxlevminoffsetis QrxlevminThe offset of (2);
Pcompensationis max (P)EMAX–PPowerClass，0)，PEMAXMaximum output power (maximum TX power level of UE may use while transmitting on the uplink in the cell), P, which may be allowed by the terminal equipment for the access network equipmentPowerClassIs the maximum output power (maximum output power) determined according to the power class of the terminal equipment, wherein PPowerClassFor the transmitting capability of the terminal device itself, i.e. the maximum output power, P, determined by the terminal device according to the power classEMAXMaximum output power allowed for the terminal device to use for the access network device;
Qoffsettempis an offset temporary applied to a cell;
Qqualmeasmeasured cell quality value (reference signal received quality) (RSRQ)) for a measured cell;
Qqualmina minimum required quality level in the cell;
Qqualminoffsetis QqualminThe amount of offset of (c).
Rs＝Qmeas,s+Qhyst-Qoffsettemp
Rn＝Qmeas,n-Qoffset-Qoffsettemp
Wherein, Rs and RnCell-ranking criteria (cell-ranking criteria) for the serving cell and the neighbor cell, respectively;
qmeas, s is a reception level value (reference signal received power) for cell reselection (RSRP);
for the same frequency measurement: if Qoffsets,nEffectively, Qoffset equals Qoffsets,nOtherwise Qoffset is equal to zero.
For pilot frequencies: if Qoffsets,nEffectively, Qoffset equals Qoffsets,nQoffset additionfrequencyOtherwise Qoffset equals Qoffsetfrequency。
QoffsettempIs an offset temporary applied to a cell.
For example, for high priority reselection and low priority reselection, when the cell selection received signal level value is used to evaluate the quality of service of the cell, Srxlev 'may be determined by Srxlev minus an offset, where the offset is a positive number, assuming that the quality of service of the cell is Srxlev'. Srxlev' may also be determined by Srxlev plus an offset, where the offset is negative. Further, when using the cell selection signal quality value to evaluate the quality of service for the cell, assuming the quality of service for the cell is Squal ', the Squal' may be determined by subtracting an offset from Squal, where the offset is negative. Squal' may also be determined by adding an offset to Squal, which in this case is a positive number.
For another example, for a same priority reselection, if the cell is a serving cell, it is assumed that the corresponding quality of service of the cell is Rs', then Rs' can be prepared from RsSubtracting the offset, wherein the offset is positive. Rs' may also consist of RsAnd adding an offset, wherein the offset is a negative number.
For another example, for a reselection of the same priority, if the cell is not the serving cell, it is assumed that the corresponding quality of service of the cell is Rn', then Rn' can be prepared from RnBy subtracting the offsetIt is determined that the offset is positive at this time. Rn' may also consist of RnAnd adding an offset, wherein the offset is a negative number.
It can be seen that, in the above technical solution, after the neighbor cell measurement is started, the terminal device is prevented from selecting or reselecting the cell. When the cell is a serving cell, triggering cell reselection due to poor quality of a reference signal corresponding to the frequency resource, and when the cell quality is determined, setting the cell state of the cell to be forbidden, or pulling down the service quality of the cell by using an offset, so as to avoid that the cell is retained in the selection and tends to be replaced to an adjacent cell; the cell is prevented from being reselected, and it can be understood that, after the terminal device has reselected to another cell except for the cell, and at this time, the cell is not a serving cell, when the terminal device triggers cell reselection to perform cell quality determination, the cell state of the cell is set to be forbidden, or the offset is used to reduce the service quality of the cell, so as to avoid reselecting the cell, and thereby a ping-pong effect is formed.
Optionally, in a possible implementation manner, the cell is a serving cell, and the method further includes:
in a preset time, the terminal equipment determines the service quality corresponding to the cell according to the quality of the reference signal corresponding to the frequency resource;
and determining the service quality corresponding to the cell according to the average value or the weighted average value of the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource in a preset time.
For example, the quality of the reference signal corresponding to the frequency resource is X, the quality of the reference signal corresponding to the main frequency resource is Y, and the quality of service corresponding to the cell may be Y
Figure BDA0002516060170000101
Can also be
Figure BDA0002516060170000102
Wherein M isX is the weight corresponding to the X, and N is the weight corresponding to the Y. It should be noted that M and N may be configured on the network side or may be specified by a protocol.
It can be seen that, in the above technical solution, the terminal device is prevented from selecting the cell, so that the terminal device reselects to other cells as much as possible. When the cell is a serving cell, the cell reselection is triggered due to poor quality of a reference signal corresponding to the frequency resource, and when the cell quality is determined, the reference signal quality corresponding to the frequency resource carrying the paging message is adopted as the service quality corresponding to the cell, or an average value or a weighted average value of the reference signal quality corresponding to the frequency resource carrying the paging message and the reference signal quality corresponding to the main frequency resource is adopted as the service quality of the cell, so that the terminal equipment is prevented from remaining in the cell and tends to be replaced to an adjacent cell.
Optionally, in a possible implementation, the method further includes:
and the terminal equipment receives indication information sent by the access network equipment, wherein the indication information is used for indicating the access network equipment to support the terminal equipment to start the neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource.
Correspondingly, the access network device may send the indication information to the terminal device.
It can be understood that, after the terminal device receives the indication information, the terminal device may start the neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, or may start the neighbor cell measurement according to the quality of the reference signal corresponding to the main frequency resource.
It can be seen that, in the above technical solution, by receiving the indication information, when the access network device supports the terminal device to start the neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, the terminal device may start the neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, thereby preparing for subsequent cell reselection.
Optionally, in a possible implementation, the method further includes: and the terminal equipment receives the preset time and the threshold sent by the access network equipment.
Correspondingly, the access network device may send the preset time and the threshold to the terminal device.
It can be understood that the terminal device may receive a first system message sent by the access network device, where the first system message includes a preset time and a threshold. The terminal device may receive a second system message and a third system message sent by the access network device, where the second system message includes a preset time, and the third system message includes a threshold.
It can be seen that, in the above technical solution, sending the preset time and the threshold to the terminal device is realized, and preparation is made for the subsequent terminal device to start the neighbor cell measurement, the cell selection, and the cell reselection.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present application. The terminal device 600 may be applied to the methods shown in fig. 2 to fig. 5, as shown in fig. 6, the terminal device 600 includes: a processing module 601 and a transceiver module 602, wherein,
a processing module 601, configured to measure quality of a reference signal corresponding to a frequency resource if the frequency resource carrying the paging message is different from the primary frequency resource; starting neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource; and performing cell reselection according to the result of the neighbor cell measurement.
For reference signals corresponding to the frequency resources, refer to step 201 in fig. 2, which is not repeated herein. As for the quality of the reference signal corresponding to the frequency resource, refer to step 201 in fig. 2, which is not described herein again. Regarding the neighboring cell, reference may be made to step 203 in fig. 2, which is not described herein again.
It can be seen that, in the above technical solution, when the frequency resource carrying the paging message is different from the primary frequency resource, the problem that the terminal device cannot decode the paging message already when the cell reselection has not been triggered is avoided.
Optionally, in a possible implementation manner, the neighboring cell is a neighboring cell of a cell, and after the neighboring cell measurement is started, the processing module 601 is further configured to further use the neighboring cell as a neighboring cell of the cell
Determining the cell as forbidden in a preset time; or the like, or, alternatively,
and determining the service quality corresponding to the cell according to the quality and the offset of the reference signal corresponding to the main frequency resource in a preset time. For the preset time, refer to step 403 in fig. 4, which is not described herein. For determining that the cell is forbidden, refer to step 403 in fig. 4, which is not described herein again. For determining the service quality corresponding to the cell according to the quality of the reference signal corresponding to the primary frequency resource and the offset setting, refer to step 403 in fig. 4, which is not described herein again.
It can be seen that, in the above technical solution, after the neighbor cell measurement is started, the terminal device is prevented from selecting or reselecting the cell.
Optionally, in a possible implementation, the cell is a serving cell, and the processing module 601 is further configured to
Determining the service quality corresponding to the cell according to the quality of the reference signal corresponding to the frequency resource within a preset time; or the like, or, alternatively,
and determining the service quality corresponding to the cell according to the average value or the weighted average value of the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource in a preset time.
It can be seen that, in the above technical solution, after the neighbor cell measurement is started, the terminal device is prevented from selecting the cell.
Optionally, in a possible implementation manner, when measuring the quality of the reference signal corresponding to the frequency resource, the processing module 601 is configured to alternate the quality of the reference signal corresponding to the measured frequency resource and the quality of the reference signal corresponding to the main frequency resource.
It can be seen that, in the above technical solution, when the frequency resource carrying the paging message is different from the primary frequency resource, the quality of the reference signal corresponding to the frequency resource carrying the paging message and the quality of the reference signal corresponding to the primary frequency resource are alternately measured.
Optionally, in a possible implementation manner, when the neighbor measurement is started according to the quality of the reference signal corresponding to the frequency resource, the processing module 601 is configured to determine the quality of the reference signal with the worst quality from the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource; and if the quality of the reference signal with the worst quality is lower than the threshold, starting the neighbor measurement.
For the threshold, reference may be made to step 203 in fig. 2, which is not described herein again.
It can be seen that, in the above technical solution, the neighbor cell measurement is started based on the quality of the reference signal with the worst quality in the quality of the reference signal corresponding to the frequency resource carrying the paging message and the quality of the reference signal corresponding to the main frequency resource, so as to prepare for the subsequent cell reselection.
Optionally, in a possible implementation manner, when the neighbor cell measurement is started according to the quality of the reference signal corresponding to the frequency resource, the processing module 601 is configured to start the neighbor cell measurement if the quality of the reference signal corresponding to the frequency resource is lower than a threshold.
It can be seen that, in the above technical solution, the neighbor cell measurement is started according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, so as to prepare for the subsequent cell reselection.
Optionally, in a possible implementation manner, the transceiver module 602 is configured to receive indication information sent by the access network device, where the indication information is used to indicate that the access network device supports the terminal device to start the neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource.
It can be seen that, in the above technical solution, by sending the indication information, when the access network device supports the terminal device to start the neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, the terminal device may start the neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, thereby preparing for subsequent cell reselection.
Optionally, in a possible implementation, the transceiver module 602 is further configured to receive a preset time and a threshold sent by the access network device.
It can be seen that, in the above technical solution, sending the preset time and the threshold to the terminal device is realized, and preparation is made for the subsequent terminal device to start the neighbor cell measurement, the cell selection, and the cell reselection.
Referring to fig. 7, fig. 7 is a schematic structural diagram of an access network device according to an embodiment of the present application. The access network device 700 may be applied to the methods shown in fig. 2 to fig. 5, as shown in fig. 7, the access network device 700 includes: a transceiver module 701 for, among other things,
a transceiver module 701, configured to send indication information to a terminal device, where the indication information is used to indicate that an access network device supports the terminal device to start neighbor cell measurement according to quality of a reference signal corresponding to a frequency resource carrying a paging message.
It can be seen that, in the above technical solution, by sending the indication information, when the access network device supports the terminal device to start the neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, the terminal device may start the neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource carrying the paging message, thereby preparing for subsequent cell reselection.
Optionally, in a possible implementation, the transceiver module 701 is further configured to send the preset time and the threshold to the terminal device.
It is understood that the transceiver module may be configured to send a first system message to the terminal device, where the first system message includes a preset time and a threshold. The transceiver module may also be configured to send a second system message and a third system message to the terminal device, where the second system message includes the preset time, and the third system message includes the threshold.
It can be seen that, in the above technical solution, sending the preset time and the threshold to the terminal device is realized, and preparation is made for the subsequent terminal device to start the neighbor cell measurement, the cell selection, and the cell reselection.
Fig. 8 is a schematic structural diagram of a simplified terminal device according to an embodiment of the present application. For easy understanding and illustration, in fig. 8, the terminal device is exemplified by a mobile phone. As shown in fig. 8, the terminal device includes at least one processor, and may further include a radio frequency circuit, an antenna, and an input-output device. The processor may be configured to process a communication protocol and communication data, and may be further configured to control the terminal device, execute a software program, process data of the software program, and the like. The terminal device may further comprise a memory, which is mainly used for storing software programs and data, and these related programs may be loaded into the memory at the time of shipment of the communication apparatus, or may be loaded into the memory at a later time when needed. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user. It should be noted that some kinds of terminal devices may not have input/output devices.
When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs baseband signals to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signals and sends the radio frequency signals to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 7. In an actual end device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in this embodiment.
In the embodiment of the present application, an antenna and a radio frequency circuit having a transceiving function may be regarded as a receiving unit and a transmitting unit (which may also be collectively referred to as a transceiving unit) of a terminal device, and a processor having a processing function may be regarded as a processing unit of the terminal device. As shown in fig. 8, the terminal device includes a receiving module 31, a processing module 32, and a transmitting module 33. The receiving module 31 may also be referred to as a receiver, a receiving circuit, etc., and the transmitting module 33 may also be referred to as a transmitter, a transmitting circuit, etc. The processing module 32 may also be referred to as a processor, a processing board, a processing module, a processing device, etc.
For example, the processing module 32 is configured to execute the embodiments shown in fig. 2 to 5.
Fig. 9 is a schematic structural diagram of a simplified access network device according to an embodiment of the present application. The access network device includes a radio frequency signal transceiving and converting portion 42, which includes a receiving module 41 and a transmitting module 43 (which may also be collectively referred to as a transceiving module). The radio frequency signal receiving, transmitting and converting part is mainly used for receiving and transmitting radio frequency signals and converting the radio frequency signals and baseband signals; the 42 part is mainly used for baseband processing, controlling access network equipment and the like. The receiving module 41 may also be referred to as a receiver, a receiving circuit, etc., and the transmitting module 43 may also be referred to as a transmitter, a transmitting circuit, etc. Part 42 is typically a control center of the access network device, which may be generally referred to as a processing module, for controlling the access network device to perform the steps described above with respect to the access network device in fig. 2-5. Reference is made in particular to the description of the relevant part above.
Section 42 may include one or more boards, each of which may include one or more processors and one or more memories, the processors being configured to read and execute programs in the memories to implement baseband processing functions and control of access network devices. If a plurality of single boards exist, the single boards can be interconnected to increase the processing capacity. As an optional implementation, multiple boards may share one or more processors, multiple boards may share one or more memories, or multiple boards may share one or more processors at the same time.
For example, the sending module 43 is configured to perform the function of the access network device in step 403 in the embodiment shown in fig. 4.
The embodiment of the application also provides a terminal device/access network device, and the terminal device/access network device is used for executing the cell reselection method. Some or all of the above communications may be implemented in hardware or software.
Optionally, the terminal device/access network device may be a chip or an integrated circuit when implemented.
Optionally, when part or all of the cell reselection methods in the foregoing embodiments are implemented by software, the terminal device/access network device includes: at least one processor, configured to execute a program, when the program is executed, so that a terminal device/access network device may implement the cell reselection method provided in the foregoing embodiments, where the terminal device/access network device may further include a memory, configured to store necessary programs, and the related programs may be loaded into the memory when the terminal device leaves a factory, or may be loaded into the memory when needed at a later time.
Alternatively, the memory may be a physically separate unit or may be integrated with the processor.
Optionally, when part or all of the cell reselection methods in the foregoing embodiments are implemented by software, the terminal device/access network device may also include only at least one processor. The memory for storing the program is located outside the terminal device, and the processor is connected to the memory through a circuit/wire for reading and executing the program stored in the memory.
Each processor may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of a CPU and an NP.
Alternatively, each processor may comprise a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof.
The memory may include volatile memory (volatile memory), such as random-access memory (RAM); the memory may also include a non-volatile memory (non-volatile memory), such as a flash memory (flash memory), a Hard Disk Drive (HDD) or a solid-state drive (SSD); the memory may also comprise a combination of memories of the kind described above.
Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program may implement a procedure related to a terminal device in a cell reselection method provided in the foregoing method embodiments.
The above-mentioned embodiments, objects, technical solutions and advantages of the present application are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present application, and are not intended to limit the scope of the present application, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present application should be included in the scope of the present application.

Claims (14)

1. A method of cell reselection, comprising:
if the frequency resource carrying the paging message is different from the main frequency resource, measuring the quality of a reference signal corresponding to the frequency resource;
starting neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource;
and performing cell reselection according to the result of the neighbor cell measurement.
2. The method of claim 1, wherein the neighbor cell is a cell neighbor cell, and after the starting the neighbor cell measurement, the method further comprises:
determining the cell as forbidden in a preset time; or the like, or, alternatively,
and determining the service quality corresponding to the cell according to the quality and the offset of the reference signal corresponding to the main frequency resource in the preset time.
3. The method of claim 2, wherein the cell is a serving cell, the method further comprising:
determining the service quality corresponding to the cell according to the quality of the reference signal corresponding to the frequency resource within the preset time;
and determining the service quality corresponding to the cell according to the average value or the weighted average value of the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource in the preset time.
4. The method of claim 1, wherein the measuring the quality of the reference signal corresponding to the frequency resource comprises:
and alternately measuring the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource.
5. The method of claim 4, wherein the starting of the neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource comprises:
determining the quality of the reference signal with the worst quality in the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource;
and if the quality of the reference signal with the worst quality is lower than the threshold, starting the neighbor cell measurement.
6. The method according to claim 1 or 5, wherein the starting of the neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource comprises:
and if the quality of the reference signal corresponding to the frequency resource is lower than a threshold, starting the neighbor cell measurement.
7. A terminal device, characterized in that the terminal device comprises a processing module,
the processing module is used for measuring the quality of a reference signal corresponding to the frequency resource if the frequency resource carrying the paging message is different from the main frequency resource; starting neighbor cell measurement according to the quality of the reference signal corresponding to the frequency resource; and performing cell reselection according to the result of the neighbor cell measurement.
8. The terminal device of claim 7, wherein the neighboring cell is a cell neighboring cell, and after the neighbor cell measurement is started, the processing module is further configured to start the neighbor cell measurement
Determining the cell as forbidden in a preset time; or the like, or, alternatively,
and determining the service quality corresponding to the cell according to the quality and the offset of the reference signal corresponding to the main frequency resource in the preset time.
9. The terminal device of claim 8, wherein the cell is a serving cell, and wherein the processing module is further configured to
Determining the service quality corresponding to the cell according to the quality of the reference signal corresponding to the frequency resource within the preset time; or the like, or, alternatively,
and determining the service quality corresponding to the cell according to the average value or the weighted average value of the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource in the preset time.
10. The terminal device according to claim 7, wherein when measuring the quality of the reference signal corresponding to the frequency resource, the processing module is configured to alternately measure the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource.
11. The terminal device according to claim 9, wherein when the neighbor cell measurement is started according to the quality of the reference signal corresponding to the frequency resource, the processing module is configured to determine the quality of a reference signal with the worst quality from the quality of the reference signal corresponding to the frequency resource and the quality of the reference signal corresponding to the main frequency resource; and if the quality of the reference signal with the worst quality is lower than the threshold, starting the neighbor cell measurement.
12. The terminal device according to claim 7 or 10, wherein when the neighbor cell measurement is started according to the quality of the reference signal corresponding to the frequency resource, the processing module is configured to start the neighbor cell measurement if the quality of the reference signal corresponding to the frequency resource is lower than a threshold.
13. A terminal device comprising a processor, a memory, an input interface for receiving information from a communication apparatus other than the terminal device, and an output interface for outputting information to the communication apparatus other than the terminal device, the processor calling a computer program stored in the memory to implement the method of any one of claims 1-6.
14. A computer-readable storage medium, in which a computer program is stored which, when executed, implements the method of any one of claims 1-6.
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