CN114143844B - Cell reselection method, device, chip and module equipment - Google Patents

Cell reselection method, device, chip and module equipment Download PDF

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Publication number
CN114143844B
CN114143844B CN202111426077.1A CN202111426077A CN114143844B CN 114143844 B CN114143844 B CN 114143844B CN 202111426077 A CN202111426077 A CN 202111426077A CN 114143844 B CN114143844 B CN 114143844B
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cell
candidate
signal strength
candidate cell
service
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CN114143844A (en
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郭雪莲
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Unisoc Chongqing Technology Co Ltd
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Unisoc Chongqing Technology Co Ltd
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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
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • 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
    • H04W36/0005—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
    • H04W36/0085—Hand-off measurements
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application discloses a cell reselection method, a cell reselection device, a chip and module equipment, wherein the cell reselection method comprises the following steps: the terminal equipment measures the cell signal strength of at least one candidate cell; if a first candidate cell and a service cell in at least one candidate cell meet a first condition in a first time, the terminal equipment is switched to the first candidate cell, the service cell is a cell where the terminal equipment currently resides, and the first condition is related to the cell signal intensity of the first candidate cell and the cell signal intensity of the service cell. The method is beneficial to avoiding the terminal equipment from frequently initiating network reselection.

Description

Cell reselection method, device, chip and module equipment
Technical Field
The present application relates to the field of communications, and in particular, to a method, an apparatus, a chip, and a module device for cell reselection.
Background
Due to the network deployment of operators, at the overlapping position of long term evolution (Long Term Evolution, LTE) cells, a User Equipment (UE) in an idle state finds that a neighbor cell meets a reselection condition when making neighbor cell measurement, that is, the UE is triggered to reselect from a cell 1 (primary cell) to a cell 2 (neighbor cell). When the reselection to the cell 2 is successful, the terminal equipment performs neighbor cell measurement on the cell 2, and if the cell 1 also meets the reselection condition at this time, the reselection from the cell 2 to the cell 1 is triggered by the UE. At this time, the network environment where the UE is located is the network environment of ping-pong reselection, if the UE is in a static scene, the location is not moved, the UE will continuously perform cell reselection, and frequently read system information, so as to affect power consumption and user experience.
Disclosure of Invention
The application provides a cell reselection method, a device, a chip and a module device, which are beneficial to avoiding terminal equipment from entering a network environment of ping-pong reselection and frequently initiating cell reselection.
In a first aspect, the present application provides a cell reselection method, the method comprising: the terminal equipment measures the cell signal strength of at least one candidate cell; if a first candidate cell in at least one candidate cell meets a first condition and a service cell meets a second condition in a first time, the terminal equipment reselects to the first candidate cell, and the service cell is a cell where the terminal equipment currently resides, wherein the first condition and the second condition are related to the cell signal intensity of the first candidate cell and the cell signal intensity of the service cell.
In one possible implementation, the at least one candidate cell is a plurality of candidate cells, the method further comprising: the terminal device selects a first candidate cell from at least one candidate cell based on cell signal strengths of the plurality of candidate cells and priorities of the plurality of candidate cells.
In one possible implementation, the first condition is: when the priority of the first candidate cell is high and the first candidate cell and the service cell belong to different frequency points, the cell signal strength of the first candidate cell is larger than a first threshold; when the priority of the first candidate cell is equal priority or the first candidate cell and the service cell belong to the same frequency point, a first value corresponding to the first candidate cell is larger than a first value corresponding to the service cell, and the first value is determined based on the cell signal strength and the cell signal offset; when the priority of the first candidate cell is low and the first candidate cell and the service cell belong to different frequency points, the cell signal strength of the first candidate cell is larger than a second threshold and the cell signal strength of the service cell is smaller than a third threshold; the second condition is one or more of the following conditions: when the priority of the serving cell is high and the serving cell and the first candidate cell belong to different frequency points, the signal strength of the serving cell is smaller than or equal to a first threshold; when the service cell priority is equal priority or the first candidate cell and the service cell belong to the same frequency point, the first value corresponding to the service cell is smaller than or equal to the first value corresponding to the first candidate cell; when the priority of the serving cell is low and the first candidate cell and the serving cell belong to different frequency points, the cell signal strength of the serving cell is smaller than or equal to a second threshold, or the cell signal strength of the first candidate cell is larger than or equal to a third threshold; the cell signal strength of the serving cell is less than the cell signal strength of the first candidate cell.
In one possible implementation, the terminal device has camped on the first candidate cell; the second value corresponding to the first candidate cell is greater than 0, and the second value is calculated based on the reference signal received power RSRP and the reference signal received quality RSRQ of the first candidate cell.
In one possible implementation, during the reselection time, the candidate cell satisfies the third condition and the serving cell satisfies the fourth condition. The third condition is: when the priority of the candidate cell is high and the candidate cell and the service cell belong to different frequency points, the cell signal strength of the candidate cell is larger than a first threshold; when the priority of the candidate cell is equal priority or the candidate cell and the service cell belong to the same frequency point, the first value corresponding to the candidate cell is larger than the first value corresponding to the service cell, and the first value is determined based on the cell signal strength and the cell signal offset; when the priority of the candidate cell is low and the candidate cell and the service cell belong to different frequency points, the cell signal strength of the candidate cell is larger than a second threshold and the cell signal strength of the service cell is smaller than a third threshold; the fourth condition is one of the following conditions: when the priority of the serving cell is high and the serving cell and the first candidate cell belong to different frequency points, the signal strength of the serving cell is smaller than or equal to a first threshold; when the service cell priority is equal priority or when the candidate cell and the service cell belong to the same frequency point, the first value corresponding to the service cell is smaller than or equal to the first value corresponding to the candidate cell; when the priority of the serving cell is low and the candidate cell and the serving cell belong to different frequency points, the cell signal strength of the serving cell is smaller than or equal to a second threshold, or the cell signal strength of the candidate cell is larger than or equal to a third threshold; the cell signal strength of the serving cell is less than the cell signal strength of the candidate cell.
In one possible implementation, the terminal device has camped on a candidate cell; the second value corresponding to the candidate cell is greater than 0, and the second value is calculated based on the reference signal received power RSRP and the reference signal received quality RSRQ of the candidate cell.
In one possible implementation, the first time is determined based on a reselection time and a discontinuous reception, DRX, cycle time.
In one possible implementation manner, when the terminal device measures the cell signal strength corresponding to at least one candidate cell, the method includes: when the cell signal intensity of the serving cell is smaller than or equal to a fourth threshold, the terminal equipment measures the cell signal intensity corresponding to at least one candidate cell; the method further comprises the steps of: when the cell signal strength of the serving cell is greater than the fourth threshold, the terminal device does not measure the cell signal strength corresponding to the at least one candidate cell.
In a second aspect, the present application provides a communication device comprising a measurement unit and a reselection unit, wherein: a measurement unit for measuring cell signal strength of at least one candidate cell; and the reselection unit is used for reselecting the first candidate cell to the first candidate cell if the first candidate cell in the at least one candidate cell meets a first condition and the serving cell meets a second condition in the first time, wherein the serving cell is the cell where the terminal equipment currently resides, and the first condition and the second condition are related to the cell signal intensity of the first candidate cell and the cell signal intensity of the serving cell.
In a third aspect, the present application provides a module apparatus, the module apparatus comprising a communication module, a power module, a storage module, and a chip module, wherein: the power supply module is used for providing electric energy for the module equipment; the storage module is used for storing data and instructions; the communication module is used for carrying out internal communication of the module equipment or carrying out communication between the module equipment and external equipment; the chip module is used for: measuring cell signal strength of at least one candidate cell; and if the first candidate cell in the at least one candidate cell meets the first condition and the serving cell meets the second condition in the first time, reselecting the first candidate cell, wherein the serving cell is the cell where the terminal equipment currently resides, and the first condition and the second condition are related to the cell signal intensity of the first candidate cell and the cell signal intensity of the serving cell.
In a fourth aspect, the present application provides a communication device comprising a processor, a memory, and a transceiver; a transceiver for receiving a channel or signal or transmitting a channel or signal; a memory for storing a computer program; a processor for invoking a computer program from memory to perform the method as described in the first aspect and its possible implementation.
In a fifth aspect, the present application provides a computer readable storage medium having stored therein a computer program which, when run on a communication device, causes the communication device to perform a method as described in the first aspect and its possible implementation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a network architecture according to an embodiment of the present application;
fig. 2 is a flow chart of a network switching method according to an embodiment of the present application;
fig. 3 is a schematic diagram of a DRX cycle structure according to an embodiment of the present application;
fig. 4 is a schematic diagram of a network handover procedure according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of another communication device according to an embodiment of the present application
Fig. 7 is a schematic structural diagram of a module device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terminology used in the following embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates to the contrary. It should also be understood that the term "and/or" as used in this disclosure refers to and encompasses any or all possible combinations of one or more of the listed items.
It should be noted that, in the description and claims of the present application and in the above figures, the terms "first," "second," "third," etc. are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
The embodiment of the present application may be applied to a network architecture schematic shown in fig. 1, where the network architecture shown in fig. 1 is a network architecture of a wireless communication system, and the network architecture generally includes a terminal device and a network device, and the number and the form of each device do not limit the embodiment of the present application. The terminal device is connected with the network device, and the terminal device can acquire data network service through the network device, wherein the network device can provide communication service for a plurality of terminal devices. The embodiment of the application defines a unidirectional communication link from the network equipment to the terminal equipment as a downlink, wherein data transmitted on the downlink is downlink data, and the transmission direction of the downlink data is called as a downlink direction; and the unidirectional communication link from the terminal equipment to the network equipment is an uplink, the data transmitted on the uplink is uplink data, and the transmission direction of the uplink data is called as uplink direction.
The terminal device in the embodiment of the application is an entity for receiving or transmitting signals at the user side. The terminal device may be a device providing voice and/or data connectivity to a user, e.g., a handheld device having wireless connectivity, an in-vehicle device, etc. The terminal device may also be other processing device connected to the wireless modem. The terminal device may communicate with a radio access network (radio access network, RAN). The terminal device may also be referred to as a wireless terminal, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), user device (user equipment), or User Equipment (UE), etc. The terminal device may be a mobile terminal, such as a mobile telephone (or "cellular" telephone) and a computer with a mobile terminal, e.g. a portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile device, which exchanges speech and/or data with the radio access network. For example, the terminal device may also be a personal communication services (personal communication service, PCS) phone, cordless phone, session initiation protocol (session initiation protocol, SIP) phone, wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA), or the like. Common terminal devices include, for example: a cell phone, tablet computer, notebook computer, palm computer, mobile internet device (mobile internet device, MID), wearable device, such as a smart watch, smart bracelet, pedometer, etc., but embodiments of the application are not limited thereto.
The network device according to the embodiment of the present application includes a Base Station (BS), which may be a device deployed in a radio access network and capable of performing wireless communication with a terminal. Among them, the base station may have various forms such as macro base station, micro base station, relay station, access point, etc. In the embodiment of the present application, the device for implementing the function of the network device may be a network device; or may be a device, such as a system-on-a-chip, capable of supporting the network device to perform this function, which may be installed in the network device.
The method provided by the embodiment of the application can be applied to various communication systems, such as an internet of things (internet of things, ioT) system, a narrowband internet of things (narrow band internet of things, NB-IoT) system, a long term evolution (long term evolution, LTE) system, a fifth generation (5 th-generation, 5G) communication system, a hybrid architecture of LTE and 5G, a new wireless (NR) system of 5G, a new communication system in future communication development, and the like.
In order to avoid that the terminal device is in the network environment of ping-pong reselection and frequently triggers network switching, the application provides a method for network switching, as shown in fig. 2, the method comprises steps 201 to 202, wherein:
201. The terminal device measures cell signal strength of at least one candidate cell.
In the embodiment of the application, the terminal equipment measures the cell signal strength of at least one candidate cell according to the discontinuous reception (Discontinuous Reception, DRX) period in the idle mode. As shown in fig. 3, in an exemplary embodiment, a DRX cycle includes wake-up preparation, paging message reception, neighbor cell blind detection and measurement and sleep corresponding time, and the terminal device will measure signal strength of at least one candidate cell in the neighbor cell blind detection and measurement corresponding time period, where the signal strength refers to various cell parameters such as reference signal received power (Reference Signal Receiving Power, RSRP), reference signal received quality (Reference Signal Receiving Quality, RSRQ), and the like.
In one possible implementation, at reselection time T reselection And the candidate cell meets the third condition, and the serving cell meets the fourth condition.
The third condition is: when the priority of the candidate cell is high and the candidate cell and the service cell belong to different frequency points, the cell signal strength of the candidate cell is larger than a first threshold; when the priority of the candidate cell is equal priority or the candidate cell and the service cell belong to the same frequency point, the first value corresponding to the candidate cell is larger than the first value corresponding to the service cell, and the first value is determined based on the cell signal strength and the cell signal offset; when the priority of the candidate cell is low and the candidate cell and the service cell belong to different frequency points, the cell signal strength of the candidate cell is larger than a second threshold and the cell signal strength of the service cell is smaller than a third threshold.
The fourth condition is condition 1 or condition 2, wherein condition 1 is: when the priority of the serving cell is high and the serving cell and the first candidate cell belong to different frequency points, the signal strength of the serving cell is smaller than or equal to a first threshold; when the service cell priority is equal priority or when the candidate cell and the service cell belong to the same frequency point, the first value corresponding to the service cell is smaller than or equal to the first value corresponding to the candidate cell; when the priority of the serving cell is low and the candidate cell and the serving cell belong to different frequency points, the cell signal strength of the serving cell is smaller than or equal to a second threshold, or the cell signal strength of the candidate cell is larger than or equal to a third threshold. Condition 2 is: the cell signal strength of the serving cell is less than the cell signal strength of the candidate cell. Serving cell at reselection time T reselection The fourth condition is satisfied in that the serving cell is only at the reselection time T reselection And if any one of the conditions 1 and 2 is met, the serving cell can be considered to meet the fourth condition. In addition, the serving cell satisfies condition 1 in a first target time, the serving cell satisfies condition 2 in a second target time, the first and second target times may be With the combined reselection time, the serving cell may also be considered to satisfy the fourth condition.
Note that, condition 1 of the third condition and the fourth condition may be summarized as a reselection condition, where the reselection condition is: when the priority of the reselected cell is high, and the reselected cell and the resident cell belong to different frequency points, the cell signal strength of the reselected cell is larger than a first threshold; when the priority of the reselected cell is equal, or when the reselected cell and the resident cell belong to the same frequency point, the first value corresponding to the reselected cell is larger than the first value corresponding to the resident cell, and the first value is determined based on the cell signal intensity and the cell signal offset; when the priority of the reselected cell is low, and the reselected cell and the resident cell belong to different frequency points, the cell signal strength of the reselected cell is larger than a second threshold, and the cell signal strength of the resident cell is smaller than a third threshold. The candidate cell satisfies the third condition, that is, when the terminal device resides in the serving cell, the serving cell serves as a camping cell, and the candidate cell serves as a reselection cell, and satisfies the reselection condition described above. While the serving cell satisfies the condition 1 in the fourth condition, which means that the terminal device is assumed to reside in a candidate cell as a camping cell, the serving cell is now a reselection cell, and the reselection condition described above is not satisfied. Wherein, the priority of the reselection cell is high, which means that the priority of the reselection cell is higher than that of the resident cell, the priority of the reselection cell is equal, which means that the priority of the reselection cell is equal to that of the resident cell, and the priority of the reselection cell is lower than that of the resident cell.
The service cell refers to a cell where the terminal equipment currently resides, and the system information sent by the candidate cell carries the priority corresponding to the candidate cell, so that the terminal equipment can determine the priority of the candidate cell through the system information.
First value R corresponding to candidate cell n First value R corresponding to serving cell s Can be expressed as:
R n ＝Q meas,n +Qoffset-Qoffset temp +Qoffset SCPTM
R s ＝Q meas,s +Q Hyst -Qoffset temp +Qoffset SCPTM
wherein Q is meas,n RSRP, Q representing candidate cells meas,s Representing the RSRP of the serving cell. Q (Q) Hyst Representing the hysteresis value in the ranking criteria; qoffset temp Indicating temporary punishment additional offset of cell selection and reselection if connection establishment failure occurs in the corresponding cell; qoffset SCPTM An offset indicating cell selection and reselection when the frequency point is capable of providing a multimedia broadcast/multicast service (Multimedia Broadcast/Multicast Service, MBMS) service through a single cell point-to-multipoint (Single Cell Point To Multiploint, SC-PTM); qoffset represents an additional offset for cell selection and reselection.
Based on the above described possible implementation, the candidate cell and the serving cell need to be at the reselection time T reselection The third condition and the fourth condition are satisfied respectively. Based on the method, the method is beneficial to avoiding the frequent initiation of cell reselection by the terminal equipment and is in a network environment of ping-pong reselection.
Optionally, the terminal device has camped on the candidate cell; the second value corresponding to the candidate cell is greater than 0, and the second value is calculated based on the RSRP and the RSRQ of the candidate cell.
Wherein the terminal device may determine whether the candidate cell has been camped on by means of the history list of serving cells. The history service cell list comprises service cell and adjacent frequency point information; wherein the serving cell information comprises the following information: frequency point, physical cell identity (Physical Cell Identifier, PCI), priority, Q rxlevmin 、Q qualmin 、Q hyst 、Thresh Serving,LowP 、Thresh Serving,LowQ . Each neighbor contains the following information: frequency point, Q rxlevmin 、Q qualmin Frequency point priority, thresh x,HighP 、Thresh x,low 、Qoffset frequency 。Q rxlevmin Representing minimum reception level, Q, required for cell camping qualmin Indicating the minimum signal quality required for cell camping,Thresh x,HighP representing the threshold value of the cell signal corresponding to the high priority cell during reselection evaluation, thresh x,low And the cell signal threshold value corresponding to the low-priority cell in reselection evaluation is represented. Qoffset frequency Refers to a frequency specific offset of that frequency.
The second value corresponding to the candidate cell is greater than 0, where the second value refers to the S value, which may be specifically expressed as:
Srxlev＝Q rxlevmeas -(Q rxlevmin +Q rxlevminoffset )-Pcompensayion-Qoffset temp
Squal＝Q qualmeas -(Q qualmin +Q qualminoffset )-Qoffset temp
wherein, srxlev and square are both larger than 0, namely, the S value corresponding to the candidate cell is considered to be larger than 0, and the candidate cell meets S criteria and self-residence conditions. Qoffset temp Temporary offset for candidate cell signal, Q qualmeas RSRQ, Q for candidate cell rxlevmeas Is the RSRP of the candidate cell. Qoffset temp 、Q rxlevmin 、Q qualmin The same as the above description, the embodiments of the present application are not described herein.
In a possible implementation manner, the terminal device measures the cell signal strength corresponding to at least one candidate cell, and the specific implementation manner may be: when the cell signal intensity of the serving cell is smaller than or equal to a fourth threshold, the terminal equipment measures the cell signal intensity corresponding to at least one candidate cell; the method further comprises the steps of: when the cell signal strength of the serving cell is greater than the fourth threshold, the terminal device does not measure the cell signal strength corresponding to the at least one candidate cell. Based on the implementation mode, the terminal equipment measures the signal intensity of the candidate cell when the cell signal intensity of the service cell is weak, and does not measure the signal intensity of the candidate cell when the cell signal intensity of the service cell is strong, so that the power consumption of the terminal equipment can be saved.
202. If a first candidate cell in the at least one candidate cell meets a first condition and the serving cell meets a second condition in a first time, the terminal equipment reselects to the first candidate cell.
In the embodiment of the application, the first condition relates to the cell signal strength of the first candidate cell and the cell signal strength of the serving cell.
The first condition is: when the priority of the first candidate cell is high and the first candidate cell and the service cell belong to different frequency points, the cell signal strength of the first candidate cell is larger than a first threshold; when the priority of the first candidate cell is equal priority or the first candidate cell and the service cell belong to the same frequency point, a first value corresponding to the first candidate cell is larger than a first value corresponding to the service cell, and the first value is determined based on the cell signal strength and the cell signal offset; when the priority of the first candidate cell is low and the first candidate cell and the service cell belong to different frequency points, the cell signal strength of the first candidate cell is larger than a second threshold and the cell signal strength of the service cell is smaller than a third threshold.
The second condition is condition 1 or condition 2, wherein condition 1 is: when the priority of the serving cell is high and the serving cell and the first candidate cell belong to different frequency points, the signal strength of the serving cell is smaller than or equal to a first threshold; when the service cell priority is equal priority or the first candidate cell and the service cell belong to the same frequency point, the first value corresponding to the service cell is smaller than or equal to the first value corresponding to the first candidate cell; when the priority of the serving cell is low and the first candidate cell and the serving cell belong to different frequency points, the cell signal strength of the serving cell is smaller than or equal to a second threshold, or the cell signal strength of the first candidate cell is larger than or equal to a third threshold. Condition 2 is: the cell signal strength of the serving cell is less than the cell signal strength of the first candidate cell. The serving cell satisfying the fourth condition in the first time means that the serving cell can be considered to satisfy the fourth condition as long as the serving cell satisfies any one of the conditions 1 and 2 in the first time. In addition, the serving cell satisfies the condition 1 in the first target time, and the serving cell satisfies the condition 2 in the second target time, and the first target time and the second target time may be combined to be the reselection time, or the serving cell may be considered to satisfy the fourth condition.
It should be noted that, condition 1 of the first condition and the second condition may be summarized as a reselection condition, where the specific description of the reselection condition is the same as that in step 201, and the embodiment of the present application does not require that the first candidate cell satisfies the first condition, that is, when the terminal device resides in the serving cell, the serving cell serves as a residence cell, and the first candidate cell serves as a reselection cell, and satisfies the reselection condition described above. The serving cell satisfying the condition 1 in the second condition means that, assuming that the terminal device resides in the first candidate cell, which is the resident cell, the serving cell is now the reselection cell, and the above-described reselection condition is not satisfied. Wherein, the priority of the reselection cell is high, which means that the priority of the reselection cell is higher than that of the resident cell, the priority of the reselection cell is equal, which means that the priority of the reselection cell is equal to that of the resident cell, and the priority of the reselection cell is lower than that of the resident cell.
First value R corresponding to first candidate cell m And serving cell R s The corresponding first value may be expressed as:
R m ＝Q meas,m +Qoffset-Qoffset temp +Qoffset SCPTM
R s ＝Q meas,s +Q Hyst -Qoffset temp +Qoffset SCPTM
wherein Q is meas,m RSRP, Q representing a first candidate cell meas,s Representing the RSRP of the serving cell. Q (Q) Hyst 、Qoffset temp 、Qoffset SCPTM The same as the description in step 201 is omitted here for brevity.
Based on the above-described possible implementation manner, the first candidate cell and the serving cell need to satisfy a first condition in the first time, where the first condition includes a condition corresponding to the first candidate cell and a condition corresponding to the serving cell. When the first candidate cell meets the condition corresponding to the first candidate cell, the signal quality of the current first candidate cell is better, and the terminal equipment can obtain better communication service after reselecting to the first candidate cell; when the serving cell meets the condition corresponding to the serving cell in the first condition, the signal quality of the current serving cell is poor, and if the terminal equipment reselects to the first candidate cell, the terminal equipment does not reselect the serving cell any more. Therefore, based on the method, the method is beneficial to avoiding the frequent initiation of cell reselection by the terminal equipment and is in the network environment of ping-pong reselection.
Optionally, the terminal device has camped on the first candidate cell; the cell signal strength of the first candidate cell is greater than the cell signal strength of the serving cell; the second value corresponding to the first candidate cell is greater than 0, and the second value is calculated based on the reference signal received power RSRP and the reference signal received quality RSRQ of the first candidate cell.
Wherein the terminal device may determine whether the first candidate cell has been camped on by means of the history list of serving cells. The candidate cell corresponds to a second value greater than 0, where the second value may be expressed as the following equation:
Srxlev＝Q rxlevmeas -(Q rxlevmin +Q rxlevminoffset )-Pcompensayion-Qoffset temp
Squal＝Q qualmeas -(Q qualmin +Q qualminoffset )-Qoffset temp
the meaning of the parameters in the formula may be referred to the description in step 201, and the embodiment of the present application is not described herein.
In one possible implementation, the first time is determined based on a reselection time and a DRX cycle time. The first time can be expressed by the following formula
Wherein T is 1 Representing a first time, T DRX Indicating the DRX cycle.
The terminal device can determine that the first time is within the first time by means of a counterWhether the first candidate cell satisfies a first condition and whether the serving cell satisfies a second condition. Setting a counter as count, and setting a threshold value corresponding to the count asThe initial value of count is 0, the terminal equipment measures the cell signal intensity of the first candidate cell when the adjacent cell of each DRX period is subjected to blind detection and measurement time, and determines whether the first candidate cell meets the first condition or not and whether the service cell meets the second condition or not by combining the cell signal intensity of the service equipment. If the first candidate cell meets the first condition and the service cell meets the second condition, adding 1 to count; and if the serving cell does not meet the second condition and/or the first candidate cell does not meet the first condition, clearing the count. When the value of count reaches +. >And confirming that the first candidate cell and the serving cell meet the first condition in the first time.
In one possible implementation, the at least one candidate cell is a plurality of candidate cells, the method further comprising: the terminal device selects a first candidate cell from at least one candidate cell based on cell signal strengths of the plurality of candidate cells and priorities of the plurality of candidate cells. The specific implementation manner is that the terminal equipment calculates a third numerical value corresponding to the plurality of candidate cells, and selects a candidate cell with the largest third numerical value from the plurality of candidate cells as the first candidate cell. The third value sort may be expressed by the following formula:
sort＝prio ncell ×factor1+R n
wherein prio is ncell The priority of the candidate cell is indicated, factor1 is a preset value, the weight of the priority of the candidate cell is indicated, R n For the first value corresponding to the candidate cell, the specific calculation manner may be referred to the description in step 201, and the embodiment of the present application is not described herein. The value of factor1 is larger than R n The maximum possible. Based on the implementation manner, the terminal equipment can select the optimal first candidate cell from a plurality of candidate cellsWhen the terminal equipment reselects to the first candidate cell, better network service can be obtained.
Alternatively, the third value sort may be expressed by the following formula:
sort＝prio ncell ×factor1+R n +factor2
the factor2 is a number far greater than the factor1 if the candidate cell satisfies the target condition, and the factor2 is 0 if the candidate cell does not satisfy the target condition. The target condition may be any one or more of the following conditions: the candidate cell is a cell under a closed subscriber group (Closed Subscriber Group, CSG) to which the terminal device belongs; when the terminal device is in the enhanced coverage mode, the candidate cell satisfies normal coverage. Based on the implementation manner, the conditional parameter factor2 is added in the parameter corresponding to the third numerical value, so that the method is favorable for selecting the first candidate cell which is most suitable for the terminal equipment from a plurality of candidate cells based on the actual application scene of the current terminal equipment, and better network service can be obtained after the terminal equipment is reselected to the first candidate cell.
In one possible implementation manner, if the terminal device determines that the first candidate cell and the serving cell meet the first condition in the first time, a specific process of reselecting the terminal device to the first candidate cell is shown in fig. 4: the terminal device will read the master information block (maste information block, MIB) and the system information block 1 (system information block, sibb 1) during the remaining period of the serving cell DRX cycle, and after determining that the first candidate cell satisfies the cell camping condition, will continue to read the remaining system information, such as SIB2, SIB3, etc. And after the terminal equipment finishes reading the system information, reselecting the system information to the first candidate cell. If the terminal equipment does not read the remaining system information in the remaining period of the DRX period of the serving cell, the terminal equipment will read in the next DRX period. If the first candidate cell does not meet the cell residence condition, the terminal device will not switch, but will record the information of the first candidate cell in the history service cell list. Based on the implementation manner, the terminal equipment can obtain better network service after reselecting to the first candidate cell.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the application. The communication means shown in fig. 5 may be used to perform some or all of the functions of the terminal device described above. The device can be a terminal device, a device in the terminal device, or a device which can be matched with the terminal device for use. The communication device may also be a chip system. The communication device shown in fig. 5 may comprise a measurement unit 501 and a reselection unit 502.
The measuring unit 501 is configured to measure a cell signal strength of at least one candidate cell; the reselection unit 502 is configured to reselect to a first candidate cell if, in a first time, a first candidate cell in at least one candidate cell satisfies a first condition and a serving cell satisfies a second condition, where the serving cell is a cell in which the terminal device currently resides, and the first condition and the second condition are related to a cell signal strength of the first candidate cell and a cell signal strength of the serving cell.
In a possible implementation, the at least one candidate cell is a plurality of candidate cells, and the reselection unit 502 is further configured to select the first candidate cell from the at least one candidate cell based on cell signal strengths of the plurality of candidate cells and priorities of the plurality of candidate cells.
In one possible implementation, the first condition is: when the priority of the first candidate cell is high and the first candidate cell and the service cell belong to different frequency points, the cell signal strength of the first candidate cell is larger than a first threshold; when the priority of the first candidate cell is equal priority or the first candidate cell and the service cell belong to the same frequency point, a first value corresponding to the first candidate cell is larger than a first value corresponding to the service cell, and the first value is determined based on the cell signal strength and the cell signal offset; when the priority of the first candidate cell is low and the first candidate cell and the service cell belong to different frequency points, the cell signal strength of the first candidate cell is larger than a second threshold and the cell signal strength of the service cell is smaller than a third threshold; the second condition is one or more of the following conditions: when the priority of the serving cell is high and the serving cell and the first candidate cell belong to different frequency points, the signal strength of the serving cell is smaller than or equal to a first threshold; when the service cell priority is equal priority or the first candidate cell and the service cell belong to the same frequency point, the first value corresponding to the service cell is smaller than or equal to the first value corresponding to the first candidate cell; when the priority of the serving cell is low and the first candidate cell and the serving cell belong to different frequency points, the cell signal strength of the serving cell is smaller than or equal to a second threshold, or the cell signal strength of the first candidate cell is larger than or equal to a third threshold; the cell signal strength of the serving cell is less than the cell signal strength of the first candidate cell.
In one possible implementation, the corresponding device of the communication apparatus 50 has camped on the first candidate cell; the second value corresponding to the first candidate cell is greater than 0, and the second value is calculated based on the reference signal received power RSRP and the reference signal received quality RSRQ of the first candidate cell.
In one possible implementation manner, during the reselection time, the candidate cell satisfies a third condition, and the serving cell satisfies a fourth condition, where the third condition is: when the priority of the candidate cell is high and the candidate cell and the service cell belong to different frequency points, the cell signal strength of the candidate cell is larger than a first threshold; when the priority of the candidate cell is equal priority or the candidate cell and the service cell belong to the same frequency point, the first value corresponding to the candidate cell is larger than the first value corresponding to the service cell, and the first value is determined based on the cell signal strength and the cell signal offset; when the priority of the candidate cell is low and the candidate cell and the service cell belong to different frequency points, the cell signal strength of the candidate cell is larger than a second threshold and the cell signal strength of the service cell is smaller than a third threshold; the fourth condition is one of the following conditions: when the priority of the serving cell is high and the serving cell and the first candidate cell belong to different frequency points, the signal strength of the serving cell is smaller than or equal to a first threshold; when the service cell priority is equal priority or when the candidate cell and the service cell belong to the same frequency point, the first value corresponding to the service cell is smaller than or equal to the first value corresponding to the candidate cell; when the priority of the serving cell is low and the candidate cell and the serving cell belong to different frequency points, the cell signal strength of the serving cell is smaller than or equal to a second threshold, or the cell signal strength of the candidate cell is larger than or equal to a third threshold; the cell signal strength of the serving cell is less than the cell signal strength of the candidate cell.
In one possible implementation, the device to which the communication apparatus 50 corresponds has camped on the candidate cell; the cell signal intensity of the candidate cell is larger than that of the serving cell; the second value corresponding to the candidate cell is greater than 0, and the second value is calculated based on the reference signal received power RSRP and the reference signal received quality RSRQ of the candidate cell.
In one possible implementation, the first time is determined based on a reselection time and a discontinuous reception, DRX, cycle time.
In a possible implementation manner, when the measurement unit 501 measures the cell signal strength corresponding to at least one candidate cell, specifically: the measuring unit 501 is configured to measure, when the cell signal strength of the serving cell is less than or equal to a fourth threshold, the cell signal strength corresponding to at least one candidate cell; the method further comprises the steps of: the measurement unit 501 is further configured to not measure the cell signal strength corresponding to the at least one candidate cell when the cell signal strength of the serving cell is greater than the fourth threshold.
The respective devices and products described in the above embodiments include modules/units, which may be software modules/units, or may be hardware modules/units, or may be partly software modules/units, or partly hardware modules/units. For example, for each device of the application or the integrated chip, each module/unit contained in the 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 modules/units run on an integrated processor inside the chip, and the rest of the modules/units may be implemented in hardware such as a circuit; for each device and product corresponding to or integrated with the chip module, each module/unit contained in the device and product can be realized in a hardware mode such as a circuit, different modules/units can be located in the same piece (such as a chip, a circuit module and the like) or different components of the chip module, at least part of the modules/units can be realized in a software program, and the software program runs in the rest of modules/units of the integrated processor in the chip module and can be realized in a hardware mode such as a circuit; for each device or product of the terminal, the included modules/units may be implemented in hardware such as a circuit, different modules/units may be located in the same component (for example, a chip, a circuit module, etc.) or different components in the terminal, or at least part of the modules/units may be implemented in a software program, where the sequence runs on a processor integrated in the terminal, and the remaining sub-modules/units may be implemented in hardware such as a circuit.
Fig. 6 shows a communication device 60 according to an embodiment of the present application, which is configured to implement the above-mentioned terminal device functions. The apparatus may be a terminal device or an apparatus for a terminal device. The means for the terminal device may be a chip system or a chip within the terminal device. The chip system may be composed of a chip or may include a chip and other discrete devices.
The communication device can also be used for realizing the functions of the terminal equipment. The apparatus may be a terminal device or an apparatus for a terminal device. The means for the terminal device may be a chip system or a chip within the terminal device. The chip system may be composed of a chip or may include a chip and other discrete devices.
The communication device 60 includes at least one processor 620 for implementing the data processing function of the terminal device in the method provided by the embodiment of the present application. The apparatus 60 may further include a communication interface 610, configured to implement a transceiving operation of a terminal device in the method provided by the embodiment of the present application. In an embodiment of the application, the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface for communicating with other devices over a transmission medium. For example, the communication interface 610 may be used for devices in the apparatus 60 to communicate with other devices. The processor 620 utilizes the communication interface 610 to transmit and receive data and is configured to implement the method described in fig. 2 in the method embodiment described above.
The apparatus 60 may also include at least one memory 630 for storing program instructions and/or data. Memory 630 is coupled to processor 620. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, which may be in electrical, mechanical, or other forms for information interaction between the devices, units, or modules. Processor 620 may operate in conjunction with memory 630. Processor 620 may execute program instructions stored in memory 630. At least one of the at least one memory may be included in the processor.
When the device 60 is powered on, the processor 620 may read the software program in the memory 630, interpret and execute instructions of the software program, and process data of the software program. When data needs to be transmitted wirelessly, the processor 620 performs baseband processing on the data to be transmitted, and outputs a baseband signal to a radio frequency circuit (not shown), and the radio frequency circuit performs radio frequency processing on the baseband signal and then transmits the radio frequency signal to the outside in the form of electromagnetic waves through an antenna. When data is transmitted to the device 60, the radio frequency circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 620, and the processor 620 converts the baseband signal into data and processes the data.
In another implementation, the rf circuitry and antenna may be provided separately from the baseband processing processor 620, for example, in a distributed scenario, the rf circuitry and antenna may be remotely located from the communication device.
The specific connection medium between the communication interface 610, the processor 620, and the memory 630 is not limited in the embodiment of the present application. The embodiment of the present application is shown in fig. 6 as a memory 630, a processor 620, and a communication interface 610 connected by a bus 640, which is shown in fig. 6 by a bold line, and the connection between other components is merely illustrative, and not limited thereto. The buses may be classified as address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 6, but not only one bus or one type of bus.
When the apparatus 60 is specifically used for a terminal device, for example, when the apparatus 60 is specifically a chip or a chip system, the communication interface 610 may output or receive a baseband signal. When the apparatus 60 is a terminal device, the communication interface 610 may output or receive radio frequency signals. In an embodiment of the present application, the processor may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or perform the methods, operations, and logic blocks disclosed in the embodiment of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. Operations of the methods disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in a processor for execution.
It should be noted that, the communication device may execute the steps related to the terminal device or the access network device in the foregoing method embodiment, and specifically, the implementation manner provided by each step may be referred to, which is not described herein again.
For each device, product, or application to or integrated with a communication device, each module included in the device may be implemented by hardware such as a circuit, and different modules may be located in the same component (for example, a chip, a circuit module, or the like) or in different components in the terminal, or at least some modules may be implemented by using a software program, where the software program runs on a processor integrated in the terminal, and the remaining (if any) some modules may be implemented by hardware such as a circuit.
Fig. 7 is a schematic structural diagram of a module device according to an embodiment of the present application, as shown in fig. 7. The module device 70 may perform the steps related to the terminal device in the foregoing method embodiment, where the module device 70 includes: a communication module 701, a power module 702, a memory module 703 and a chip module 704.
Wherein the power module 702 is configured to provide power to the module device; the storage module 703 is used for storing data and instructions; the communication module 701 is used for performing internal communication of a module device or for performing communication between the module device and an external device.
The chip module 704 is configured to measure a cell signal strength of at least one candidate cell; the chip module 704 is configured to reselect to a first candidate cell if, in a first time, a first candidate cell in at least one candidate cell satisfies a first condition and a serving cell satisfies a second condition, where the serving cell is a cell in which the terminal device currently resides, and the first condition and the second condition are related to a cell signal strength of the first candidate cell and a cell signal strength of the serving cell.
In one possible implementation, the at least one candidate cell is a plurality of candidate cells, and the chip module 704 is further configured to select the first candidate cell from the at least one candidate cell based on cell signal strengths of the plurality of candidate cells and priorities of the plurality of candidate cells.
In one possible implementation, the first condition is: when the priority of the first candidate cell is high and the first candidate cell and the service cell belong to different frequency points, the cell signal strength of the first candidate cell is larger than a first threshold; when the priority of the first candidate cell is equal priority or the first candidate cell and the service cell belong to the same frequency point, a first value corresponding to the first candidate cell is larger than a first value corresponding to the service cell, and the first value is determined based on the cell signal strength and the cell signal offset; when the priority of the first candidate cell is low and the first candidate cell and the service cell belong to different frequency points, the cell signal strength of the first candidate cell is larger than a second threshold and the cell signal strength of the service cell is smaller than a third threshold; the second condition is one or more of the following conditions: when the priority of the serving cell is high and the serving cell and the first candidate cell belong to different frequency points, the signal strength of the serving cell is smaller than or equal to a first threshold; when the service cell priority is equal priority or the first candidate cell and the service cell belong to the same frequency point, the first value corresponding to the service cell is smaller than or equal to the first value corresponding to the first candidate cell; when the priority of the serving cell is low and the first candidate cell and the serving cell belong to different frequency points, the cell signal strength of the serving cell is smaller than or equal to a second threshold, or the cell signal strength of the first candidate cell is larger than or equal to a third threshold; the cell signal strength of the serving cell is less than the cell signal strength of the first candidate cell.
In one possible implementation, the corresponding device of the modular device 70 has been camping on the first candidate cell; the second value corresponding to the first candidate cell is greater than 0, and the second value is calculated based on the reference signal received power RSRP and the reference signal received quality RSRQ of the first candidate cell.
In one possible implementation, during the reselection time, the candidate cell satisfies a third condition, and the serving cell satisfies a fourth condition, where the third condition is: when the priority of the candidate cell is high and the candidate cell and the service cell belong to different frequency points, the cell signal strength of the candidate cell is larger than a first threshold; when the priority of the candidate cell is equal priority or the candidate cell and the service cell belong to the same frequency point, the first value corresponding to the candidate cell is larger than the first value corresponding to the service cell, and the first value is determined based on the cell signal strength and the cell signal offset; when the priority of the candidate cell is low and the candidate cell and the service cell belong to different frequency points, the cell signal strength of the candidate cell is larger than a second threshold and the cell signal strength of the service cell is smaller than a third threshold; the fourth condition is one of the following conditions: when the priority of the serving cell is high and the serving cell and the first candidate cell belong to different frequency points, the signal strength of the serving cell is smaller than or equal to a first threshold; when the service cell priority is equal priority or when the candidate cell and the service cell belong to the same frequency point, the first value corresponding to the service cell is smaller than or equal to the first value corresponding to the candidate cell; when the priority of the serving cell is low and the candidate cell and the serving cell belong to different frequency points, the cell signal strength of the serving cell is smaller than or equal to a second threshold, or the cell signal strength of the candidate cell is larger than or equal to a third threshold; the cell signal strength of the serving cell is less than the cell signal strength of the candidate cell.
In one possible implementation, the device to which the modular device 70 corresponds has camped on the candidate cell; the cell signal intensity of the candidate cell is larger than that of the serving cell; the second value corresponding to the candidate cell is greater than 0, and the second value is calculated based on the reference signal received power RSRP and the reference signal received quality RSRQ of the candidate cell.
In one possible implementation, the first time is determined based on a reselection time and a discontinuous reception, DRX, cycle time.
In one possible implementation, when the chip module 704 measures the cell signal strength corresponding to at least one candidate cell, specifically: the chip module 704 is configured to measure a cell signal strength corresponding to at least one candidate cell when the cell signal strength of the serving cell is less than or equal to a fourth threshold; the method further comprises the steps of: the chip module 704 is further configured to not measure the cell signal strength corresponding to the at least one candidate cell when the cell signal strength of the serving cell is greater than the fourth threshold.
The embodiment of the application also provides a computer readable storage medium, wherein instructions are stored in the computer readable storage medium, and when the computer readable storage medium runs on a processor, the method flow of the embodiment of the method is realized.
The present application also provides a computer program product, which when run on a processor, implements the method flows of the method embodiments described above.
It should be noted that, for simplicity of description, the foregoing method embodiments are all illustrated as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some acts may, in accordance with the present application, occur in other orders and concurrently. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present application.
The description of the embodiments provided by the application can be referred to each other, and the description of each embodiment has emphasis, and the part of the detailed description of one embodiment can be referred to the related description of other embodiments. For convenience and brevity of description, for example, reference may be made to the relevant descriptions of the method embodiments of the present application with respect to the functions and operations performed by the apparatus, devices, and methods provided by the embodiments of the present application, and reference may also be made to each other, to combinations, or to references between the apparatus embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (11)

1. A method of cell reselection, the method comprising:
the terminal equipment measures the cell signal strength of at least one candidate cell;
if a first candidate cell in the at least one candidate cell meets a first condition and a serving cell meets a second condition in a first time, the terminal equipment reselects to the first candidate cell, and the serving cell is a cell in which the terminal equipment currently resides, wherein the first condition and the second condition are related to the cell signal strength of the first candidate cell and the cell signal strength of the serving cell;
the first condition is:
When the priority of the first candidate cell is high and the first candidate cell and the service cell belong to different frequency points, the cell signal strength of the first candidate cell is larger than a first threshold;
when the priority of the first candidate cell is equal priority or the first candidate cell and the service cell belong to the same frequency point, a first value corresponding to the first candidate cell is larger than a first value corresponding to the service cell, and the first value is determined based on cell signal strength and cell signal offset;
when the priority of the first candidate cell is low and the first candidate cell and the service cell belong to different frequency points, the cell signal strength of the first candidate cell is larger than a second threshold and the cell signal strength of the service cell is smaller than a third threshold;
the second condition is one or more of the following conditions:
when the service cell priority is high and the service cell and the first candidate cell belong to different frequency points, the signal strength of the service cell is smaller than or equal to the first threshold;
When the service cell priority is equal priority, or when the first candidate cell and the service cell belong to the same frequency point, a first value corresponding to the service cell is smaller than or equal to a first value corresponding to the first candidate cell;
when the priority of the serving cell is low and the first candidate cell and the serving cell belong to different frequency points, the cell signal strength of the serving cell is smaller than or equal to a second threshold, or the cell signal strength of the first candidate cell is larger than or equal to a third threshold;
the cell signal strength of the serving cell is less than the cell signal strength of the first candidate cell.
2. The method of claim 1, wherein the at least one candidate cell is a plurality of candidate cells, the method further comprising:
the terminal device selects a first candidate cell from the at least one candidate cell based on cell signal strengths of the plurality of candidate cells and priorities of the plurality of candidate cells.
3. The method according to claim 1, wherein the terminal device has camped on the first candidate cell; and the second value corresponding to the first candidate cell is larger than 0, and the second value is calculated based on the Reference Signal Received Power (RSRP) and the Reference Signal Received Quality (RSRQ) of the first candidate cell.
4. A method according to claim 2 or 3, wherein during the reselection time the candidate cell satisfies a third condition and the serving cell satisfies a fourth condition
The third condition is:
when the priority of the candidate cell is high and the candidate cell and the service cell belong to different frequency points, the cell signal strength of the candidate cell is larger than a first threshold;
when the priority of the candidate cell is equal priority or the candidate cell and the service cell belong to the same frequency point, a first value corresponding to the candidate cell is larger than a first value corresponding to the service cell, and the first value is determined based on cell signal strength and cell signal offset;
when the priority of the candidate cell is low and the candidate cell and the service cell belong to different frequency points, the cell signal strength of the candidate cell is larger than a second threshold and the cell signal strength of the service cell is smaller than a third threshold;
the fourth condition is one of the following conditions:
when the service cell priority is high and the service cell and the first candidate cell belong to different frequency points, the signal strength of the service cell is smaller than or equal to the first threshold;
When the service cell priority is equal priority, or when the candidate cell and the service cell belong to the same frequency point, a first numerical value corresponding to the service cell is smaller than or equal to a first numerical value corresponding to the candidate cell;
when the priority of the service cell is low and the candidate cell and the service cell belong to different frequency points, the cell signal strength of the service cell is smaller than or equal to a second threshold, or the cell signal strength of the candidate cell is larger than or equal to a third threshold;
the cell signal strength of the serving cell is less than the cell signal strength of the candidate cell.
5. The method of claim 4, wherein the terminal device has camped on the candidate cell; and the second value corresponding to the candidate cell is larger than 0, and the second value is calculated based on the Reference Signal Received Power (RSRP) and the Reference Signal Received Quality (RSRQ) of the candidate cell.
6. The method of claim 4, wherein the first time is determined based on the reselection time and a discontinuous reception, DRX, cycle time.
7. A method according to any one of claims 1 to 3, wherein the terminal device measures a cell signal strength corresponding to at least one candidate cell, and the method comprises:
When the cell signal intensity of the serving cell is smaller than or equal to a fourth threshold, the terminal equipment measures the cell signal intensity corresponding to at least one candidate cell;
the method further comprises the steps of:
and when the cell signal strength of the serving cell is greater than the fourth threshold, the terminal equipment does not measure the cell signal strength corresponding to at least one candidate cell.
8. A communication device, comprising a measurement unit and a reselection unit, wherein:
a measurement unit for measuring cell signal strength of at least one candidate cell;
a reselection unit, configured to reselect to a first candidate cell in the at least one candidate cell if the first candidate cell satisfies a first condition and a serving cell satisfies a second condition in a first time, where the serving cell is a cell in which the communication device currently resides, and the first condition relates to a cell signal strength of the first candidate cell and a cell signal strength of the serving cell;
the first condition is:
when the priority of the first candidate cell is high and the first candidate cell and the service cell belong to different frequency points, the cell signal strength of the first candidate cell is larger than a first threshold;
When the priority of the first candidate cell is equal priority or the first candidate cell and the service cell belong to the same frequency point, a first value corresponding to the first candidate cell is larger than a first value corresponding to the service cell, and the first value is determined based on cell signal strength and cell signal offset;
when the priority of the first candidate cell is low and the first candidate cell and the service cell belong to different frequency points, the cell signal strength of the first candidate cell is larger than a second threshold and the cell signal strength of the service cell is smaller than a third threshold;
the second condition is one or more of the following conditions:
when the service cell priority is high and the service cell and the first candidate cell belong to different frequency points, the signal strength of the service cell is smaller than or equal to the first threshold;
when the service cell priority is equal priority, or when the first candidate cell and the service cell belong to the same frequency point, a first value corresponding to the service cell is smaller than or equal to a first value corresponding to the first candidate cell;
When the priority of the serving cell is low and the first candidate cell and the serving cell belong to different frequency points, the cell signal strength of the serving cell is smaller than or equal to a second threshold, or the cell signal strength of the first candidate cell is larger than or equal to a third threshold;
the cell signal strength of the serving cell is less than the cell signal strength of the first candidate cell.
9. The utility model provides a module equipment, its characterized in that, module equipment includes communication module, power module, storage module and chip module, wherein:
the power supply module is used for providing electric energy for the module equipment;
the storage module is used for storing data and instructions;
the communication module is used for carrying out internal communication of module equipment or carrying out communication between the module equipment and external equipment;
the chip module is used for:
measuring cell signal strength of at least one candidate cell;
if a first candidate cell in the at least one candidate cell meets a first condition and a service cell meets a second condition in a first time, reselecting to the first candidate cell, wherein the service cell is a cell where the module equipment currently resides, and the first condition is related to the cell signal intensity of the first candidate cell and the cell signal intensity of the service cell;
The first condition is:
when the priority of the first candidate cell is high and the first candidate cell and the service cell belong to different frequency points, the cell signal strength of the first candidate cell is larger than a first threshold;
when the priority of the first candidate cell is equal priority or the first candidate cell and the service cell belong to the same frequency point, a first value corresponding to the first candidate cell is larger than a first value corresponding to the service cell, and the first value is determined based on cell signal strength and cell signal offset;
when the priority of the first candidate cell is low and the first candidate cell and the service cell belong to different frequency points, the cell signal strength of the first candidate cell is larger than a second threshold and the cell signal strength of the service cell is smaller than a third threshold;
the second condition is one or more of the following conditions:
when the service cell priority is high and the service cell and the first candidate cell belong to different frequency points, the signal strength of the service cell is smaller than or equal to the first threshold;
When the service cell priority is equal priority, or when the first candidate cell and the service cell belong to the same frequency point, a first value corresponding to the service cell is smaller than or equal to a first value corresponding to the first candidate cell;
when the priority of the serving cell is low and the first candidate cell and the serving cell belong to different frequency points, the cell signal strength of the serving cell is smaller than or equal to a second threshold, or the cell signal strength of the first candidate cell is larger than or equal to a third threshold;
the cell signal strength of the serving cell is less than the cell signal strength of the first candidate cell.
10. A communication device comprising a processor, a memory, and a transceiver;
the transceiver is used for receiving a channel or a signal or transmitting the channel or the signal;
the memory is used for storing a computer program;
the processor is configured to invoke the computer program from the memory to perform the method according to any of claims 1-7.
11. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program which, when run on a communication device, causes the communication device to perform the method of any of claims 1-7.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109769271A (en) * 2017-11-09 2019-05-17 中国电信股份有限公司 The method and user terminal to interoperate between honeycomb Internet of Things access technology
CN110831099A (en) * 2018-08-08 2020-02-21 电信科学技术研究院有限公司 Cell reselection method, device, terminal and network node
WO2020216167A1 (en) * 2019-04-26 2020-10-29 华为技术有限公司 Cell selection method, cell reselection method and chip

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105101313A (en) * 2014-05-22 2015-11-25 中兴通讯股份有限公司 Terminal cell reselection method and terminal cell reselection device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109769271A (en) * 2017-11-09 2019-05-17 中国电信股份有限公司 The method and user terminal to interoperate between honeycomb Internet of Things access technology
CN110831099A (en) * 2018-08-08 2020-02-21 电信科学技术研究院有限公司 Cell reselection method, device, terminal and network node
WO2020216167A1 (en) * 2019-04-26 2020-10-29 华为技术有限公司 Cell selection method, cell reselection method and chip

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Samsung Electronics Co., Ltd.R2-154530 "Cell Selection and Reselection for NB-IOT".3GPP tsg_ran\WG2_RL2.2015,(TSGR2_91bis),全文. *

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