WO2022205247A1 - 一种小区重选方法、小区重选装置及存储介质 - Google Patents
一种小区重选方法、小区重选装置及存储介质 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- 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
- H04W36/304—Reselection being triggered by specific parameters by measured or perceived connection quality data due to measured or perceived resources with higher communication quality
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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
- H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
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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
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/00835—Determination of neighbour cell lists
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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
- H04W36/0088—Scheduling hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
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- H—ELECTRICITY
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- H04W48/16—Discovering, processing access restriction or access information
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- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/06—Airborne or Satellite Networks
Definitions
- the present disclosure relates to the field of wireless communication technologies, and in particular, to a cell reselection method, a cell reselection device, and a storage medium.
- the terminal When communicating based on the land network, the terminal mainly performs cell reselection based on the S criterion and the R criterion. For example, when the terminal performs cell reselection, it can measure the service quality of adjacent cells based on the signal quality of the serving cell, sort the measurement results of the adjacent cells based on the R criterion, and perform the target cell based on the measurement results and the sorting results. re-election.
- non-terrestrial networks are introduced, and for the NTN network, communication is performed based on satellites.
- the satellite performs a gateway link switch (feeder link switch) or a terminal service link switch (service link switch)
- the network-side equipment communicating with the terminal will suddenly stop serving.
- a non-terrestrial network if the measurement of the neighboring cell is started according to the signal quality of the serving cell, it may lead to the situation that the measurement of the service quality of the neighboring cell is not started, and the network side device communicating with the terminal has stopped serving.
- the present disclosure provides a cell reselection method, a cell reselection device and a storage medium.
- a cell reselection method applied to a terminal, the method includes:
- a first message is received, where the first message includes time information for triggering the terminal to perform cell reselection.
- the time information includes first time information; the method further includes:
- measuring the neighboring cells includes:
- the measurement is performed on the neighbor cell based on the first time information.
- measuring the neighboring cells includes:
- the neighbor cell In response to the frequency priority of the neighbor cell being lower than or equal to the frequency priority of the serving cell, in the case that the signal quality of the serving cell is lower than the predefined signal quality threshold, based on the first time information, the neighbor cell is Take measurements.
- measuring the neighboring cells includes:
- the measurement is performed on the neighbor cell in response to the neighbor cell having a higher frequency priority than the serving cell.
- the first time information includes a first service duration of the service provided by the serving cell
- the performing measurement on neighboring cells based on the first time information includes:
- a timer duration is determined based on the first service duration, and in response to an expiration of the timer duration, it is determined to measure a neighbor cell.
- the first time information includes a first service moment when the serving cell provides services
- the measuring the neighboring cell based on the first time information of the serving cell includes:
- the method further includes:
- determining a service time threshold for cell reselection in response to the relationship between the first time information and the service time threshold, determining to measure a neighboring cell.
- the method further includes:
- the target cell is determined.
- the time information includes second time information
- the method further includes:
- a target cell is determined.
- the second time information includes a second service time when a neighboring cell provides a service
- the determining the target cell based on the second time information includes:
- a minimum difference between the second service time and the first service time is determined, and a cell corresponding to the minimum difference is determined as a target cell.
- the second time information includes a second service duration of a service provided by a neighboring cell
- the determining the target cell based on the second time includes:
- the longest second service duration is determined, and the cell corresponding to the longest second service duration is determined as the target cell.
- the target cell satisfies the S criterion.
- the second time information includes a second service time when a neighboring cell provides a service
- the determining the target cell based on the second time information includes:
- At least one candidate cell is determined; in the at least one candidate cell, the minimum difference between the second service time and the first service time is determined, and the candidate cell corresponding to the minimum difference is determined as the target cell.
- the second time information includes a second service duration of a service provided by a neighboring cell
- the determining the target cell based on the second time information includes:
- At least one candidate cell is determined; in the at least one candidate cell, the candidate cell with the longest second service duration is determined as the target cell.
- the determining at least one candidate cell based on the R criterion includes:
- the largest R value among the R values of the neighbor cells is determined, and at least one neighbor cell corresponding to the largest R value is determined as a candidate cell.
- the determining at least one candidate cell based on the R criterion includes:
- the largest R value among the R values of the neighbor cells is determined, and at least one neighbor cell corresponding to the largest R value is determined as a candidate cell.
- the receiving the first message includes:
- the first message is received based on the system message and/or the radio resource control RRC message.
- a cell reselection method which is applied to a network side device, and the method includes:
- a first message is sent, where the first message includes time information for triggering the terminal to perform cell reselection.
- the time information includes first time information and/or second time information.
- the first time information includes a first service duration provided by a serving cell and a first service moment provided by a serving cell; the second time information includes a second service duration provided by a neighboring cell and The second service moment when the neighboring cell provides the service.
- the sending the first message includes:
- the first message is sent based on the system message and/or the RRC message.
- an apparatus for cell reselection which is applied to a terminal, and the apparatus includes:
- a receiving module configured to receive a first message, where the first message includes time information for triggering the terminal to perform cell reselection.
- the time information includes first time information; the apparatus further includes: a measurement module.
- a measurement module configured to measure the neighbor cell based on the first time information.
- the measurement module is used to:
- the measurement is performed on the neighbor cell based on the first time information.
- the measurement module is used to:
- the neighbor cell In response to the frequency priority of the neighbor cell being lower than or equal to the frequency priority of the serving cell, in the case that the signal quality of the serving cell is lower than the predefined signal quality threshold, based on the first time information, the neighbor cell is Take measurements.
- the measurement module is used to:
- the measurement is performed on the neighbor cell in response to the neighbor cell having a higher frequency priority than the serving cell.
- the first time information includes a first service duration of the service provided by the serving cell
- the measurement module is used for:
- a timer duration is determined based on the first service duration, and in response to an expiration of the timer duration, it is determined to measure a neighbor cell.
- the first time information includes a first service moment when the serving cell provides services
- the measurement module is used for:
- the measurement module is also used for:
- determining a service time threshold for cell reselection in response to the relationship between the first time information and the service time threshold, determining to measure a neighboring cell.
- the apparatus after the measurement of the neighboring cell, the apparatus further includes: a determining module;
- a determination module configured to determine the target cell based on the R criterion.
- the determining module is used for:
- a target cell is determined.
- the second time information includes a second service time when a neighboring cell provides a service
- the determining module is used for:
- a minimum difference between the second service time and the first service time is determined, and a cell corresponding to the minimum difference is determined as a target cell.
- the second time information includes a second service duration of a service provided by a neighboring cell
- the determining module is used for:
- the longest second service duration is determined, and the cell corresponding to the longest second service duration is determined as the target cell.
- the target cell satisfies the S criterion.
- the second time information includes a second service time when a neighboring cell provides a service
- the determining module is used for:
- At least one candidate cell is determined; in the at least one candidate cell, the minimum difference between the second service time and the first service time is determined, and the candidate cell corresponding to the minimum difference is determined as the target cell.
- the second time information includes a second service duration of a service provided by a neighboring cell
- the determining module is used for:
- At least one candidate cell is determined; in the at least one candidate cell, the candidate cell with the longest second service duration is determined as the target cell.
- the determining module is used for:
- the largest R value among the R values of the neighbor cells is determined, and at least one neighbor cell corresponding to the largest R value is determined as a candidate cell.
- the determining module is used for:
- the largest R value among the R values of the neighbor cells is determined, and at least one neighbor cell corresponding to the largest R value is determined as a candidate cell.
- the receiving module is used for:
- the first message is received based on the system message and/or the radio resource control RRC message.
- an apparatus for cell reselection which is applied to a network side device, and the method includes:
- a sending module configured to send a first message, where the first message includes time information for triggering the terminal to perform cell reselection.
- the time information includes first time information and/or second time information.
- the first time information includes a first service duration provided by a serving cell and a first service moment provided by a serving cell; the second time information includes a second service duration provided by a neighboring cell and The second service moment when the neighboring cell provides the service.
- the sending module is used for:
- the first message is sent based on the system message and/or the RRC message.
- a communication device the device includes a processor and a memory, the memory stores a computer program, and the processor executes the computer program stored in the memory to cause
- the apparatus performs the method of the first aspect or any embodiment of the first aspect, or causes the apparatus to perform the method of the second aspect or any embodiment of the second aspect.
- a computer-readable storage medium for storing instructions, and when the instructions are executed, the first aspect or any one of the implementation manners of the first aspect is implemented.
- the method of the second aspect is implemented, or, the method according to any one of the embodiments of the second aspect or the second aspect is implemented.
- time information can be provided to the terminal for triggering the terminal to perform cell reselection. This avoids the problem that the terminal performs cell reselection too late because the serving cell suddenly stops serving.
- FIG. 1 is an architectural diagram of a communication system between a network device and a terminal according to an exemplary embodiment.
- Fig. 2 is a flow chart of a cell reselection method according to an exemplary embodiment.
- Fig. 3 is a flow chart of yet another method for cell reselection according to an exemplary embodiment.
- Fig. 4 is a flow chart of yet another method for cell reselection according to an exemplary embodiment.
- Fig. 5 is a flow chart of yet another method for cell reselection according to an exemplary embodiment.
- Fig. 6 is a flow chart of yet another method for cell reselection according to an exemplary embodiment.
- Fig. 7 is a flow chart of yet another method for cell reselection according to an exemplary embodiment.
- Fig. 8 is a flow chart of yet another method for cell reselection according to an exemplary embodiment.
- Fig. 9 is a flow chart of yet another method for cell reselection according to an exemplary embodiment.
- Fig. 10 is a flow chart showing yet another method for cell reselection according to an exemplary embodiment.
- Fig. 11 is a flow chart showing yet another method for cell reselection according to an exemplary embodiment.
- Fig. 12 is a flow chart showing yet another method for cell reselection according to an exemplary embodiment.
- Fig. 13 is a flow chart of yet another method for cell reselection according to an exemplary embodiment.
- Fig. 14 is a flow chart showing yet another method for cell reselection according to an exemplary embodiment.
- Fig. 15 is a flow chart showing yet another method for cell reselection according to an exemplary embodiment.
- Fig. 16 is a flow chart showing yet another method for cell reselection according to an exemplary embodiment.
- Fig. 17 is a flow chart showing yet another method for cell reselection according to an exemplary embodiment.
- Fig. 18 is a flow chart showing yet another method for cell reselection according to an exemplary embodiment.
- Fig. 19 is a flow chart showing yet another method for cell reselection according to an exemplary embodiment.
- Fig. 20 is a flow chart showing yet another method for cell reselection according to an exemplary embodiment.
- Fig. 21 is a flow chart showing yet another method for cell reselection according to an exemplary embodiment.
- Fig. 22 is a flow chart showing yet another method for cell reselection according to an exemplary embodiment.
- Fig. 23 is a block diagram of a cell reselection apparatus according to an exemplary embodiment.
- Fig. 24 is a block diagram of yet another apparatus for cell reselection according to an exemplary embodiment.
- Fig. 25 is a block diagram of an apparatus for cell reselection according to an exemplary embodiment.
- Fig. 26 is a block diagram of yet another apparatus for cell reselection according to an exemplary embodiment.
- FIG. 1 is an architectural diagram of a communication system between a network device and a terminal according to an exemplary embodiment.
- the communication method provided by the present disclosure can be applied to the communication system architecture diagram shown in FIG. 1 .
- the network side device may send signaling based on the architecture shown in FIG. 1 .
- the communication system between the network device and the terminal shown in FIG. 1 is only a schematic illustration, and the wireless communication system may also include other network devices, such as core network devices, wireless relay devices, and wireless backhaul devices. Transmission equipment, etc., are not shown in Figure 1.
- the embodiments of the present disclosure do not limit the number of network devices and the number of terminals included in the wireless communication system.
- the wireless communication system is a network that provides a wireless communication function.
- Wireless communication systems can use different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA) , frequency division multiple access (frequency division multiple access, FDMA), orthogonal frequency division multiple access (orthogonal frequency-division multiple access, OFDMA), single carrier frequency division multiple access (single Carrier FDMA, SC-FDMA), carrier sense Carrier Sense Multiple Access with Collision Avoidance.
- CDMA code division multiple access
- WCDMA wideband code division multiple access
- TDMA time division multiple access
- FDMA frequency division multiple access
- OFDMA orthogonal frequency division multiple access
- single carrier frequency division multiple access single Carrier FDMA, SC-FDMA
- carrier sense Carrier Sense Multiple Access with Collision Avoidance CDMA
- CDMA code division multiple access
- WCDMA wideband code division multiple access
- TDMA time division multiple access
- OFDMA orthogonal
- the network can be divided into 2G (English: generation) network, 3G network, 4G network or future evolution network, such as 5G network, 5G network can also be called a new wireless network ( New Radio, NR).
- 2G International: generation
- 3G network 4G network or future evolution network, such as 5G network
- 5G network can also be called a new wireless network ( New Radio, NR).
- New Radio New Radio
- the present disclosure will sometimes refer to a wireless communication network simply as a network.
- the wireless access network equipment may be: a base station, an evolved node B (base station), a home base station, an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay A node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc., can also be a gNB in an NR system, or can also be a component or part of a device that constitutes a base station Wait.
- the network device may also be an in-vehicle device. It should be understood that, in the embodiments of the present disclosure, the specific technology and specific device form adopted by the network device are not limited.
- the terminal involved in the present disclosure may also be referred to as terminal equipment, user equipment (User Equipment, UE), mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal, MT), etc.
- a device that provides voice and/or data connectivity for example, a terminal may be a handheld device with wireless connectivity, a vehicle-mounted device, or the like.
- some examples of terminals are: Smartphone (Mobile Phone), Pocket Personal Computer (PPC), PDA, Personal Digital Assistant (PDA), notebook computer, tablet computer, wearable device, or Vehicle equipment, etc.
- the terminal device may also be an in-vehicle device. It should be understood that the embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal.
- the terminal when the terminal performs cell reselection, it can measure the service quality of adjacent cells based on the S criterion, and sort the measurement results of the adjacent cells based on the R criterion, and Carry out the reselection of the target cell.
- the S criterion includes that the cell selection level S rxlev is greater than zero, and the cell selection quality S qual is greater than zero. That is, S rxlev >0 and S qual >0.
- the cell selected/reselected by the terminal needs to satisfy the above-mentioned S criterion.
- Srxlev is based on the RSRP value (Q rxlevmeas ) of the measured cell, the minimum reception level (Q rxlevmin ) required in the cell, the minimum reception level offset (Q rxlevminoffset ), the cell power related parameter (P compensation ), and the temporary application
- the offset value (Q offsettemp ) of the cell is determined.
- P compensation is used to punish UEs that fail to reach the maximum power of the cell.
- p Compensation max(p Max ⁇ p uMax ,0)(dB), where p Max is the maximum uplink transmit power of the UE allowed by the cell, and p uMax is the maximum uplink transmit power supported by the UE capability. See the formula below.
- S qual is determined based on the RSRQ value (Qqualmeas) of the measurement cell, the minimum received signal quality (Q qualmin ), the minimum received signal received quality offset value (Q qualminoffset ), and the Q offsettemp . See the formula below.
- S rxlev , S qual , Q rxlevmeas , Q rxlevmin , Q rxlevminoffset , Q offsettemp , Qqualmeasp , Q qualmin , Q qualminoffset , and Compensation can refer to Table 1 below.
- the terminal can determine the time to measure the neighboring cell according to the above-mentioned S criterion, and the rules include:
- the terminal may choose not to measure the neighbor cell. On the contrary, if S rxlev ⁇ S IntraSearchP of the serving cell, the terminal may choose to measure the neighboring cell, and the UE needs to measure the neighboring cell.
- the terminal may choose not to measure the neighbor cell. On the contrary, if the frequency priority of the neighbor cell is less than or equal to the frequency priority of the serving cell, then if the serving cell's S rxlev ⁇ S nonIntraSearchP , the terminal needs to measure the neighbor cell.
- the R criterion includes the following formula.
- Rs is the R value of the serving cell
- Rn is the R value of the neighboring cell
- Qmeas,s is the RSRP measurement value of the serving cell
- Qmeas ,n is the RSRP measurement value of the neighboring cell
- Qhyst is the cell reselection hysteresis value
- Q offset is a temporary offset value
- Q offset is an offset value.
- the R value of each cell is calculated according to the above R criterion, and the terminal only performs the R criterion ranking on the neighboring cells that satisfy the S criterion.
- NTN communicates based on satellite.
- the satellite performs the feeder link switch or the service link switch
- the network-side device that communicates with the terminal will suddenly stop serving.
- the measurement of neighboring cells is started according to the S criterion, it may lead to the situation that the measurement of the service quality of the neighboring cells is not started, and the network side equipment communicating with the terminal has stopped serving.
- the NTN may determine out of service information for the area and/or timing information (eg, timer or absolute time) about a new upcoming cell. If both types of time information are required, FFS is learned from system information and/or ephemeris. That is, the NTN can provide information to assist the terminal in cell reselection.
- the information may be time information when the serving cell can provide service/stop service, and the information is used to trigger the UE to measure the neighboring cell.
- the information can also be the time information of neighboring cells that the terminal may provide services to the terminal, so as to assist the terminal to select a suitable neighboring cell.
- the present disclosure provides a cell reselection method.
- the service cell provided by NTN to provide service/stop time information, and/or the time information of neighboring cells that the terminal may provide service to the terminal, trigger the terminal to perform cell reselection in advance, to avoid the satellite feeder link switch Or when the service link switch is performed, the measurement of the service quality of the adjacent cells is not started, and the network side equipment communicating with the terminal has stopped serving.
- Fig. 2 is a flow chart of a cell reselection method according to an exemplary embodiment. As shown in Figure 2, the cell reselection method is used in a terminal, and includes the following steps.
- step S11 the first message is received.
- the first message includes time information for triggering the terminal to perform cell reselection.
- the time information may include at least one of the following:
- the serving cell may provide time information of the service.
- the time information of the neighboring cell that will provide service is the time information of the neighboring cell that will provide service.
- the time information that the serving cell can provide the service can be the duration information that the serving cell provides the service, for example, the duration that can be provided to the terminal is N minutes.
- the time information when the serving cell stops serving may be the stopping time when the serving cell provides services for the terminal.
- the stopping time of the service provided by the serving cell is XX hours, XX minutes, and XX seconds. That is, at this moment, the serving cell stops serving.
- the time information of the neighboring cell that is about to provide the service may be the starting service time when the neighboring cell can provide the service for the terminal, or the service duration of providing the service for the terminal, or the like.
- the terminal receives the time information sent by the serving cell, and determines the time to perform measurement on the neighboring cell and cell reselection according to the time information.
- the network side device provides service time information of a serving cell or a neighboring cell, and determines cell measurement and reselection based on the time information. So that the terminal will not cause too late cell reselection due to the sudden unavailability of the serving cell.
- Fig. 3 is a flow chart of a cell reselection method according to an exemplary embodiment. As shown in FIG. 3 , the cell reselection method is used in a terminal, and includes the following steps.
- step S21 the neighbor cell is measured based on the first time information.
- the time information may include time information when the serving cell can provide services, and/or time information when the serving cell stops serving.
- time information that the serving cell can provide the service and/or the time information that the serving cell stops serving is referred to as the first time information.
- the terminal triggers the measurement of neighboring cells based on the first time information. Cell reselection is performed based on the measurement results.
- the measurement of the neighboring cell by the terminal may include one or more of acquiring the ID of the neighboring cell, acquiring the system information of the cell, and measuring the signal quality of the cell.
- Fig. 4 is a flow chart of a method for cell reselection according to an exemplary embodiment. As shown in FIG. 4 , the cell reselection method is used in a terminal, and includes the following steps.
- step S31 in response to the frequency priority of the neighbor cell being lower than or equal to the frequency priority of the serving cell, the neighbor cell is measured based on the first time information.
- the terminal can also determine the time to measure the neighbor cell according to the first time information. In one manner, if the frequency priority of the adjacent cell is lower than the frequency priority of the serving cell, or, the frequency priority of the adjacent cell is the same as the frequency priority of the serving cell. Even when the signal quality of the serving cell is higher than a predefined signal quality threshold, the measurement is performed based on the time information.
- Fig. 5 is a flow chart of a method for cell reselection according to an exemplary embodiment. As shown in FIG. 5 , the cell reselection method is used in a terminal, and this embodiment can be implemented alone or together with any other embodiment of the present disclosure, including the following steps.
- step S41 in response to the frequency priority of the neighbor cell being lower than or equal to the frequency priority of the serving cell, in the case that the signal quality of the serving cell is lower than the predefined signal quality threshold, based on the first time information cell to measure.
- the frequency priority of the neighbor cell is lower than the frequency priority of the serving cell, or equal to the frequency priority of the neighbor cell, the frequency priority of the serving cell. Only when the signal quality of the serving cell is lower than the predefined signal quality threshold, that is, S rxlev ⁇ S IntraSearchP , does the terminal measure the neighboring cell based on the first time.
- Fig. 6 is a flow chart of a cell reselection method according to an exemplary embodiment. As shown in FIG. 6 , the cell reselection method is used in a terminal, and includes the following steps.
- step S51 in response to the frequency priority of the neighbor cell being higher than the frequency priority of the serving cell, the measurement is performed on the neighbor cell.
- the terminal if the frequency priority of the neighbor cell is higher than the frequency priority of the serving cell, the terminal does not need to consider the first time information, and always measures the neighbor cell.
- the first time information may include a first service duration during which the serving cell provides services.
- Fig. 7 is a flow chart of a method for cell reselection according to an exemplary embodiment. As shown in FIG. 7 , the cell reselection method used in the terminal includes the following steps.
- step S61 the timer duration is determined based on the first service duration, and in response to the timer duration being expired, it is determined to measure the neighbor cell.
- the first time information is the first service duration for the serving cell to provide services, then after the terminal accesses the serving cell, it is determined that the serving cell can be the terminal according to the first time information indicated by the network side device The length of the first service provided.
- the terminal determines a timer device of the terminal based on the first service duration, and determines the duration of the timer as the first service duration. In response to the timer's duration timed out, ie, exceeding the first serving duration of the serving cell, it is determined that the measurement is being performed on the neighbor cell.
- the first time information may include the first service moment when the serving cell provides the service.
- Fig. 8 is a flow chart of a cell reselection method according to an exemplary embodiment. As shown in FIG. 8 , the cell reselection method is used in a terminal, and this embodiment can be implemented alone or together with any other embodiment of the present disclosure, including the following steps.
- step S71 in response to the current time reaching the first service time, it is determined to measure the neighbor cell.
- the first time information is the first service moment when the serving cell provides services, and the moment when the serving cell stops serving is further determined by the received first time information.
- the first service moment may be an absolute time, such as system time provided by the network.
- the terminal determines its own current time, or the system time provided by the network, and compares it with the first service time. If the current time reaches the first service time, it is determined to measure the neighboring cell.
- the terminal may obtain the system time provided by the network based on the system broadcast message SIB9.
- Fig. 9 is a flow chart of a cell reselection method according to an exemplary embodiment. As shown in FIG. 9 , the cell reselection method is used in a terminal, and includes the following steps.
- step S81 the service time threshold of cell reselection is determined
- a service time threshold value may also be predefined for the cell providing the service.
- the service time threshold is determined as a threshold value for cell reselection.
- step S82 in response to the relationship between the first time information and the service time threshold value, it is determined to measure the neighboring cell.
- the first service duration in response to the first time information being the first service duration, if the first service duration is greater than or equal to the service duration threshold, it is determined to measure the neighboring cell. Alternatively, if the first service duration is less than or equal to the service duration threshold, it is determined to measure the neighboring cell.
- the frequency priority of the neighboring cell is lower than or equal to the frequency priority of the serving cell, if the first service duration is greater than or equal to the service time threshold, and When the signal quality of the serving cell is lower than the predefined signal quality threshold, it is determined to measure the neighbor cell.
- the frequency priority of the neighboring cell is lower than or equal to the frequency priority of the serving cell, less than or equal to the service time threshold, and the signal quality of the serving cell is When the signal quality is lower than the predefined signal quality threshold, it is determined to measure the neighbor cell.
- the terminal determines to measure the neighboring cell if the first service time is greater than or equal to the service time threshold. Or, if the first service time is less than or equal to the service time threshold, it is determined to measure the neighbor cell.
- the frequency priority of the neighboring cell is lower than or equal to the frequency priority of the serving cell, if the first service time is greater than or equal to the service time threshold, and When the signal quality of the serving cell is lower than the predefined signal quality threshold, it is determined to measure the neighbor cell.
- Fig. 10 is a flowchart showing a method for cell reselection according to an exemplary embodiment. As shown in FIG. 10 , the cell reselection method is used in a terminal, and this embodiment can be implemented alone or together with any other embodiment of the present disclosure, including the following steps.
- step S91 the target cell is determined based on the R criterion.
- the measurement of neighboring cells is performed to determine the R value of each cell. Based on the R criterion, the R values are sorted to determine the cell with the largest R value. In the cell with the largest R value, the target cell is determined.
- the time information may further include second time information, where the second time information is the time information of neighboring cells that can be provided.
- Fig. 11 is a flowchart showing a method for cell reselection according to an exemplary embodiment. As shown in FIG. 11 , the cell reselection method is used in a terminal, and this embodiment can be implemented alone or together with any other embodiment of the present disclosure, including the following steps.
- step S101 a target cell is determined based on the second time information.
- the terminal may determine the target cell based on the above measured R value of the neighboring cell. Or determine the target cell according to the second time information. Or the target cell is determined according to the R value, the target cell and the second time information.
- the second time information may include the second service time at which the neighboring cell provides services.
- Fig. 12 is a flowchart showing a method for cell reselection according to an exemplary embodiment. As shown in FIG. 12 , the cell reselection method is used in a terminal, and this embodiment can be implemented alone or together with any other embodiment of the present disclosure, and includes the following steps.
- step S111 the minimum difference between the second service time and the first service time is determined, and the cell corresponding to the smallest difference is determined as the target cell.
- the terminal determines a first service moment when the serving cell stops serving, and a second service moment when a neighboring cell can provide services for the terminal. Determine the fastest neighboring cell serving the terminal. In other words, the cell with the smallest difference between the second service moment that can provide services for the terminal and the first service moment that the serving cell stops serving is determined as the target cell.
- the cell with the smallest difference between the second service moment that can provide services for the terminal and the first service moment when the serving cell stops serving, and which satisfies the S criterion is determined as the target cell.
- the minimum difference is the first minimum difference
- the second smallest difference is indeed the second minimum difference
- the third minimum difference and so on In response to the cell with the second minimum difference value satisfying the S criterion, it is determined that the cell corresponding to the second minimum difference value is the target cell. And so on, until the target cell is determined.
- the second time information may include a second service duration during which a neighboring cell provides a service.
- Fig. 13 is a flowchart showing a method for cell reselection according to an exemplary embodiment. As shown in FIG. 13 , the cell reselection method is used in a terminal, and this embodiment can be implemented alone or together with any other embodiment of the present disclosure, including the following steps.
- step S121 the second service duration with the longest duration is determined, and the cell corresponding to the second service duration with the longest duration is determined as the target cell.
- the second time information includes the second service duration of the service provided by the neighboring cell. Then, the neighboring cells are sorted based on the second service duration, and the second service duration with the longest duration is determined. The cell corresponding to the second service duration with the longest duration is determined as the target cell.
- the cell corresponding to the second service duration with the longest duration and satisfying the S criterion is determined as the target cell.
- the order of all the second service durations is performed.
- a cell corresponding to the second service duration next to the second service duration with the longest duration and satisfying the S criterion is determined as the target cell. And so on until the target cell is determined.
- the second time information may include the second service moment when the neighbor cell provides the service, and the following implementation manner may also be adopted.
- Fig. 14 is a flowchart showing a method for cell reselection according to an exemplary embodiment. As shown in FIG. 14 , the cell reselection method is used in a terminal, and this embodiment can be implemented alone or together with any other embodiment of the present disclosure, including the following steps.
- step S131 based on the R criterion, at least one candidate cell is determined.
- step S132 in at least one candidate cell, the minimum difference between the second service time and the first service time is determined, and the candidate cell corresponding to the smallest difference is determined as the target cell.
- the R value of each cell is determined and sorted, and the first number of cells ranked first are selected. For example, sorting according to the R value, and selecting the top N cells with the best signal quality. Among the N cells with the best signal quality, a neighboring cell that provides services to the terminal fastest is determined. In other words, according to the ranking of the R value of each cell, among the N cells with the largest R value, the cell with the smallest difference between the second service time that can provide services for the terminal and the first service time that the serving cell stops serving is determined. for the target area.
- the second time information may include a second service duration during which a neighboring cell provides a service.
- Fig. 15 is a flowchart showing a method for cell reselection according to an exemplary embodiment. As shown in FIG. 15 , the cell reselection method is used in a terminal, and this embodiment can be implemented alone or together with any other embodiment of the present disclosure, including the following steps.
- step S141 based on the R criterion, at least one candidate cell is determined.
- step S142 among at least one candidate cell, the candidate cell with the longest second service duration is determined as the target cell.
- the R value of each cell is determined and sorted, and the first number of cells ranked first are selected. For example, sorting according to the R value, and selecting the top N candidate cells with the best signal quality. Among the N cells with the best signal quality, the second service duration with the longest duration is determined. The cell corresponding to the second service duration with the longest duration is determined as the target cell.
- Fig. 16 is a flowchart showing a method for cell reselection according to an exemplary embodiment. As shown in FIG. 16 , the cell reselection method is used in a terminal, and this embodiment can be implemented alone or together with any other embodiment of the present disclosure, including the following steps.
- step S151 based on the R criterion, the maximum R value among the R value of the serving cell and the R value of the neighboring cell is determined, and at least one cell corresponding to the maximum R value is determined as a candidate cell.
- the R values of the neighboring cell and the serving cell are calculated, and based on The calculation results of the R value are sorted. At least one cell with the largest R value is determined as a candidate cell.
- Fig. 17 is a flowchart showing a method for cell reselection according to an exemplary embodiment. As shown in FIG. 17 , the cell reselection method is used in a terminal, and this embodiment can be implemented alone or together with any other embodiment of the present disclosure, including the following steps.
- step S161 based on the R criterion, the largest R value among the R values of the neighboring cells is determined, and at least one neighboring cell corresponding to the largest R value is determined as a candidate cell.
- the R value of the neighboring cell is calculated, and based on the calculation result of the R value, put in order. At least one neighboring cell with the largest R value is determined as a candidate cell.
- the neighboring cells include 100 cells, of which 50 meet the S criterion, and 50 cells do not meet the S criterion. Then there are 50 cells sorted based on the R value.
- the calculated R value does not include the serving cell, that is, the signal quality of the serving cell is not sorted. Avoid the situation that the cell reselection fails due to the best signal quality of the serving cell.
- Fig. 18 is a flowchart showing a method for cell reselection according to an exemplary embodiment. As shown in FIG. 18 , the cell reselection method is used in a terminal, and this embodiment can be implemented alone or together with any other embodiment of the present disclosure, including the following steps.
- step S171 in the case where the S criterion is not required, based on the R criterion, determine the maximum R value among the R value of the serving cell and the R value of the neighboring cells, and determine at least one cell corresponding to the maximum R value as a candidate cell.
- the R values of the neighboring cell and the serving cell are calculated based on the R criterion, and the R values of the serving cell and the neighboring cells are sorted. And based on the calculation result of the R value, sort. At least one cell with the largest R value is determined as a candidate cell.
- the cells sorted based on the R value may satisfy the S criterion or may not satisfy the S criterion.
- the neighboring cells include 100 cells, of which 50 meet the S criterion, and 50 cells do not meet the S criterion. Then there are 100 cells sorted based on the R value.
- Fig. 19 is a flowchart showing a method for cell reselection according to an exemplary embodiment. As shown in FIG. 19 , the cell reselection method is used in a terminal, and this embodiment can be implemented alone or together with any other embodiment of the present disclosure, including the following steps.
- step S181 if the S criterion is not required to be satisfied, the largest R value among the R values of neighboring cells is determined based on the R criterion, and at least one neighboring cell corresponding to the largest R value is determined as a candidate cell.
- the R values of the neighboring cells are calculated, and the R values of the serving cell and the neighboring cells are sorted. And based on the calculation result of the R value, sort. At least one cell with the largest R value is determined as a candidate cell.
- the cells sorted based on the R value may satisfy the S criterion or may not satisfy the S criterion.
- the neighboring cells include 100 cells, of which 50 meet the S criterion, and 50 cells do not meet the S criterion. Then there are 100 cells sorted based on the R value.
- the signal quality of the serving cell is lower than the pre-defined signal quality threshold.
- the timer determined based on the first service duration times out it is determined to measure the neighbor cell. Obtain the R value of the measurement result.
- the R value of each cell can also be determined and sorted based on the measurement value of the neighboring cells and the R criterion, and the first number of cells ranked first can be selected. For example, sorting according to the R value, and selecting the top N cells with the best signal quality. Among the N cells with the best signal quality, a neighboring cell that provides services to the terminal fastest is determined. In other words, according to the ranking of the R value of each cell, among the N cells with the largest R value, the cell with the smallest difference between the second service time that can provide services for the terminal and the first service time that the serving cell stops serving is determined. for the target area.
- the R value of each cell may also be determined and sorted based on the R criterion, and the first number of cells ranked first may be selected. For example, sorting according to the R value, and selecting the top N candidate cells with the best signal quality. Among the N cells with the best signal quality, the second service duration with the longest duration is determined. The cell corresponding to the second service duration with the longest duration is determined as the target cell.
- the difference between the neighboring cell and the serving cell can be determined.
- the R value is calculated, and based on the calculated result of the R value, sorting is performed. At least one cell with the largest R value is determined as a candidate cell.
- Neighboring cells may also not be required to satisfy the S criterion, that is, in the case that the S criterion is not required to be satisfied, the R value of the neighboring cell is calculated based on the R criterion, and the R values of the serving cell and the neighboring cell are sorted. And based on the calculation result of the R value, sort. At least one cell with the largest R value is determined as a candidate cell.
- the R value of the neighboring cell can be calculated based on the R criterion, and Sorting is performed based on the calculated result of the R value. At least one neighboring cell with the largest R value is determined as a candidate cell.
- the neighboring cells may also not be required to satisfy the S criterion, that is, in the case where the S criterion is not required to be met, the R values of the neighboring cells are calculated based on the R criterion, and the R values of the neighboring cells are sorted. And based on the calculation result of the R value, sort. At least one cell with the largest R value is determined as a candidate cell.
- the signal quality of the serving cell is lower than the predefined signal quality threshold.
- the first service duration is less than or equal to the service duration threshold, it is determined to measure the neighboring cell.
- the R value of each cell may be determined and sorted based on the measurement value of the neighboring cells and the R criterion, and the first number of cells ranked first may be selected. For example, sorting according to the R value, and selecting the top N cells with the best signal quality. Among the N cells with the best signal quality, a neighboring cell that provides services to the terminal fastest is determined. In other words, according to the ranking of the R value of each cell, among the N cells with the largest R value, the cell with the smallest difference between the second service time that can provide services for the terminal and the first service time that the serving cell stops serving is determined. for the target area.
- the R value of each cell may also be determined and sorted based on the R criterion, and the first number of cells ranked first may be selected. For example, sorting according to the R value, and selecting the top N candidate cells with the best signal quality. Among the N cells with the best signal quality, the second service duration with the longest duration is determined. The cell corresponding to the second service duration with the longest duration is determined as the target cell.
- the neighboring cell and the serving cell may The R value is calculated, and the ranking is based on the calculated R value. At least one cell with the largest R value is determined as a candidate cell. Neighboring cells may also not be required to satisfy the S criterion, that is, in the case that the S criterion is not required to be satisfied, the R value of the neighboring cell is calculated based on the R criterion, and the R values of the serving cell and the neighboring cell are sorted. And based on the calculation result of the R value, sort. At least one cell with the largest R value is determined as a candidate cell.
- the R value of the neighboring cell can be calculated based on the R criterion, And based on the calculation result of the R value, sort. At least one neighboring cell with the largest R value is determined as a candidate cell.
- the neighboring cells may also not be required to satisfy the S criterion, that is, in the case where the S criterion is not required to be met, the R values of the neighboring cells are calculated based on the R criterion, and the R values of the neighboring cells are sorted. And based on the calculation result of the R value, sort. At least one cell with the largest R value is determined as a candidate cell.
- the signal quality of the serving cell is lower than the predefined signal quality threshold In the case of , if the current time reaches the first service time, it is determined to measure the neighbor cell.
- the R value of each cell may be determined and sorted based on the measurement value of the neighboring cells and the R criterion, and the first number of cells ranked first may be selected. For example, sorting according to the R value, and selecting the top N cells with the best signal quality. Among the N cells with the best signal quality, a neighboring cell that provides services to the terminal fastest is determined. In other words, according to the ranking of the R value of each cell, among the N cells with the largest R value, the cell with the smallest difference between the second service time that can provide services for the terminal and the first service time that the serving cell stops serving is determined. for the target area.
- the R value of each cell may be determined and sorted based on the R criterion, and the first number of cells ranked first may be selected. For example, sorting is performed according to the R value, and the top N candidate cells with the best signal quality are selected. Among the N cells with the best signal quality, the second service duration with the longest duration is determined. The cell corresponding to the second service duration with the longest duration is determined as the target cell.
- the neighboring cell and the serving cell may The R value is calculated, and the ranking is based on the calculation result of the R value. At least one cell with the largest R value is determined as a candidate cell. Neighboring cells may also not be required to satisfy the S criterion, that is, in the case that the S criterion is not required to be satisfied, the R value of the neighboring cell is calculated based on the R criterion, and the R values of the serving cell and the neighboring cell are sorted. And based on the calculation result of the R value, sort. At least one cell with the largest R value is determined as a candidate cell.
- the R value of the neighboring cell can be calculated based on the R criterion, And based on the calculation result of the R value, sort. At least one neighboring cell with the largest R value is determined as a candidate cell.
- the neighboring cells may also not be required to satisfy the S criterion, that is, in the case where the S criterion is not required to be met, the R values of the neighboring cells are calculated based on the R criterion, and the R values of the neighboring cells are sorted. And based on the calculation result of the R value, sort. At least one cell with the largest R value is determined as a candidate cell.
- the signal quality of the serving cell is lower than the predefined signal quality threshold In the case of , if the current time reaches the first service time, it is determined to measure the neighbor cell.
- the R value of each cell may be determined and sorted based on the measurement value of the neighboring cells and the R criterion, and the first number of cells in the top row may be selected. For example, sorting according to the R value, and selecting the top N cells with the best signal quality. Among the N cells with the best signal quality, a neighboring cell that provides services to the terminal fastest is determined. In other words, according to the ranking of the R value of each cell, among the N cells with the largest R value, the cell with the smallest difference between the second service time that can provide services for the terminal and the first service time that the serving cell stops serving is determined. for the target area.
- the R value of each cell may be determined and sorted based on the R criterion, and the first number of cells ranked first may be selected. For example, sorting according to the R value, and selecting the top N candidate cells with the best signal quality. Among the N cells with the best signal quality, the second service duration with the longest duration is determined. The cell corresponding to the second service duration with the longest duration is determined as the target cell.
- the neighboring cell and the serving cell may The R value is calculated, and the ranking is based on the calculation result of the R value. At least one cell with the largest R value is determined as a candidate cell. Neighboring cells may also not be required to satisfy the S criterion, that is, in the case that the S criterion is not required to be satisfied, the R value of the neighboring cell is calculated based on the R criterion, and the R values of the serving cell and the neighboring cell are sorted. And based on the calculation result of the R value, sort. At least one cell with the largest R value is determined as a candidate cell.
- the R value of the neighboring cell can be calculated based on the R criterion, And based on the calculation result of the R value, sort. At least one neighboring cell with the largest R value is determined as a candidate cell.
- the neighboring cells may also not be required to satisfy the S criterion, that is, in the case where the S criterion is not required to be met, the R values of the neighboring cells are calculated based on the R criterion, and the R values of the neighboring cells are sorted. And based on the calculation result of the R value, sort. At least one cell with the largest R value is determined as a candidate cell.
- Fig. 20 is a flowchart showing a method for cell reselection according to an exemplary embodiment. As shown in FIG. 20 , the cell reselection method is used in a terminal, and this embodiment can be implemented alone or together with any other embodiment of the present disclosure, including the following steps.
- step S191 the first message is received based on a system message and/or a radio resource control (Radio Resource Control, RRC) message.
- RRC Radio Resource Control
- the terminal receives the time information sent by the network side device based on the system message. And/or, the terminal receives time information sent by the network side device based on the RRC message.
- the embodiments of the present disclosure also provide a cell reselection method.
- Fig. 21 is a flowchart showing a method for cell reselection according to an exemplary embodiment. As shown in FIG. 21 , the cell reselection method is used in a network side device, and includes the following steps.
- step S201 a first message is sent.
- the first message includes time information for triggering the terminal to perform cell reselection.
- the time information may include at least one of the following:
- the serving cell may provide time information of the service.
- the time information of the neighboring cell that will provide service is the time information of the neighboring cell that will provide service.
- the time information that the serving cell can provide the service can be the duration information that the serving cell provides the service, for example, the duration that can be provided to the terminal is N minutes.
- the time information when the serving cell stops serving may be the stopping time when the serving cell provides services for the terminal.
- the stopping time of the service provided by the serving cell is XX hours, XX minutes, and XX seconds. That is, at this moment, the serving cell stops serving.
- the time information of the neighboring cell that is about to provide the service may be the starting service time when the neighboring cell can provide the service for the terminal, or the service duration of providing the service for the terminal, or the like.
- the network-side device sends the time information of the serving cell and/or the neighboring cell, so that the terminal determines the time to perform measurement and cell reselection on the neighboring cell according to the time information.
- the network side device provides service time information of a serving cell or a neighboring cell, and determines cell measurement and reselection based on the time information. So that the terminal will not cause too late cell reselection due to the sudden unavailability of the serving cell.
- the time information includes first time information and/or second time information.
- the first time information includes the first service duration during which the serving cell provides the service and the first service moment during which the serving cell provides the service.
- the second time information includes the second service duration provided by the neighboring cell and the second service moment provided by the neighboring cell.
- Fig. 22 is a flowchart showing a method for cell reselection according to an exemplary embodiment. As shown in FIG. 22 , the cell reselection method is used in a network-side device, and this embodiment can be implemented alone or together with any other embodiment of the present disclosure, including the following steps.
- step S211 the first message is sent based on the system message and/or the RRC message.
- a network-side device such as a base station and a serving cell, sends a first message through a unified message and/or an RRC message to configure time information for the terminal.
- an embodiment of the present disclosure also provides a cell reselection apparatus.
- the apparatus for cell reselection provided by the embodiments of the present disclosure includes corresponding hardware structures and/or software modules for executing each function.
- the embodiments of the present disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of the embodiments of the present disclosure.
- Fig. 23 is a block diagram of a cell reselection apparatus according to an exemplary embodiment.
- the cell reselection apparatus 100 includes a receiving module 101 .
- the receiving module 101 is configured to receive a first message, where the first message includes time information for triggering the terminal to perform cell reselection.
- the time information includes first time information.
- the apparatus further includes: a measurement module 102 .
- the measurement module is configured to measure the neighbor cell based on the first time information.
- the measurement module 102 is configured to measure the adjacent cell based on the first time information in response to the frequency priority of the adjacent cell being lower than or equal to the frequency priority of the serving cell.
- the measurement module 102 is configured to respond that the frequency priority of the neighboring cell is lower than or equal to the frequency priority of the serving cell, and in the case that the signal quality of the serving cell is lower than the predefined signal quality threshold, Based on the first time information, measurements are performed on neighboring cells.
- the measurement module 102 is configured to measure the adjacent cell in response to the frequency priority of the adjacent cell being higher than the frequency priority of the serving cell.
- the first time information includes a first service duration during which the serving cell provides a service.
- the measurement module 102 is configured to determine the timer duration based on the first service duration, and in response to the timeout of the timer duration, determine to measure the neighboring cell.
- the first time information includes the first service time at which the serving cell provides the service.
- the measurement module 102 is configured to determine to measure the neighboring cell in response to the current moment reaching the first service moment.
- the measurement module 102 is further configured to determine a service time threshold for cell reselection. In response to the relationship between the first time information and the service time threshold value, it is determined to measure the neighbor cell.
- the apparatus after measuring the neighbor cell, the apparatus further includes: a determining module 103 .
- a determination module configured to determine the target cell based on the R criterion.
- the determining module 103 is configured to determine the target cell based on the second time information.
- the second time information includes the second service time at which the neighboring cell provides the service.
- the determining module 103 is configured to determine the minimum difference between the second service time and the first service time, and determine the cell corresponding to the minimum difference as the target cell.
- the second time information includes the second service duration of the service provided by the neighboring cell.
- the determining module 103 is configured to determine the longest second service duration, and determine the cell corresponding to the longest second service duration as the target cell.
- the target cell satisfies the S criterion.
- the second time information includes the second service time at which the neighboring cell provides the service.
- the determining module 103 is configured to determine at least one candidate cell based on the R criterion. In at least one candidate cell, the minimum difference between the second service time and the first service time is determined, and the candidate cell corresponding to the smallest difference is determined as the target cell.
- the second time information includes the second service duration of the service provided by the neighboring cell.
- the determining module 103 is configured to determine at least one candidate cell based on the R criterion. Among the at least one candidate cell, the candidate cell with the longest second service duration is determined as the target cell.
- the determining module 103 is configured to, in response to the serving cell and the neighboring cell satisfying the S criterion, determine the maximum R value among the R value of the serving cell and the R value of the neighboring cell based on the R criterion, and assign the maximum R value corresponding to the maximum R value. At least one cell is determined as a candidate cell. Or, in response to the neighbor cell satisfying the S criterion, the largest R value among the R values of the neighbor cells is determined based on the R criterion, and at least one neighbor cell corresponding to the largest R value is determined as a candidate cell.
- the determining module 103 is configured to, in response to the serving cell and the neighboring cell not meeting the S criterion, determine the maximum R value among the R value of the serving cell and the neighboring cell R value based on the R criterion, and associate the maximum R value with the corresponding R value. At least one cell is determined as a candidate cell. Or, in response to the neighbor cell not meeting the S criterion, the largest R value among the R values of the neighbor cells is determined based on the R criterion, and at least one neighbor cell corresponding to the largest R value is determined as a candidate cell.
- the receiving module 101 is configured to receive the first message based on the system message and/or the radio resource control RRC message.
- Fig. 24 is a block diagram of a cell reselection apparatus according to an exemplary embodiment.
- the cell reselection apparatus 200 includes a sending module 201 .
- the sending module 201 is configured to send a first message, where the first message includes time information for triggering the terminal to perform cell reselection.
- the time information includes first time information and/or second time information.
- the first time information includes the first service duration of the service provided by the serving cell and the first service time of the service provided by the serving cell.
- the second time information includes the second service duration provided by the neighboring cell and the second service moment provided by the neighboring cell.
- the sending module 201 is configured to send the first message based on the system message and/or the RRC message.
- FIG. 25 is a block diagram of an apparatus 300 for cell reselection according to an exemplary embodiment.
- apparatus 300 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.
- apparatus 300 may include one or more of the following components: processing component 302, memory 304, power component 306, multimedia component 308, audio component 310, input/output (I/O) interface 312, sensor component 314, and Communication component 316 .
- the processing component 302 generally controls the overall operation of the device 300, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
- the processing component 302 may include one or more processors 320 to execute instructions to perform all or some of the steps of the methods described above. Additionally, processing component 302 may include one or more modules that facilitate interaction between processing component 302 and other components. For example, processing component 302 may include a multimedia module to facilitate interaction between multimedia component 308 and processing component 302 .
- Memory 304 is configured to store various types of data to support operations at device 300 . Examples of such data include instructions for any application or method operating on device 300, contact data, phonebook data, messages, pictures, videos, and the like. Memory 304 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
- SRAM static random access memory
- EEPROM electrically erasable programmable read only memory
- EPROM erasable Programmable Read Only Memory
- PROM Programmable Read Only Memory
- ROM Read Only Memory
- Magnetic Memory Flash Memory
- Magnetic or Optical Disk Magnetic Disk
- Power component 306 provides power to various components of device 300 .
- Power components 306 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to device 300 .
- Multimedia component 308 includes screens that provide an output interface between the device 300 and the user.
- the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
- the touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or swipe action, but also detect the duration and pressure associated with the touch or swipe action.
- the multimedia component 308 includes a front-facing camera and/or a rear-facing camera. When the apparatus 300 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.
- Audio component 310 is configured to output and/or input audio signals.
- audio component 310 includes a microphone (MIC) that is configured to receive external audio signals when device 300 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signal may be further stored in memory 304 or transmitted via communication component 316 .
- audio component 310 also includes a speaker for outputting audio signals.
- the I/O interface 312 provides an interface between the processing component 302 and a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.
- Sensor assembly 314 includes one or more sensors for providing status assessment of various aspects of device 300 .
- the sensor assembly 314 can detect the open/closed state of the device 300, the relative positioning of components, such as the display and keypad of the device 300, and the sensor assembly 314 can also detect a change in the position of the device 300 or a component of the device 300 , the presence or absence of user contact with the device 300 , the orientation or acceleration/deceleration of the device 300 and the temperature change of the device 300 .
- Sensor assembly 314 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
- Sensor assembly 314 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
- the sensor assembly 314 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
- Communication component 316 is configured to facilitate wired or wireless communication between apparatus 300 and other devices.
- Device 300 may access wireless networks based on communication standards, such as WiFi, 2G or 3G, or a combination thereof.
- the communication component 316 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
- the communication component 316 also includes a near field communication (NFC) module to facilitate short-range communication.
- NFC near field communication
- the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
- RFID radio frequency identification
- IrDA infrared data association
- UWB ultra-wideband
- Bluetooth Bluetooth
- apparatus 300 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation is used to perform the above method.
- ASICs application specific integrated circuits
- DSPs digital signal processors
- DSPDs digital signal processing devices
- PLDs programmable logic devices
- FPGA field programmable A gate array
- controller microcontroller, microprocessor or other electronic component implementation is used to perform the above method.
- non-transitory computer-readable storage medium including instructions, such as a memory 304 including instructions, executable by the processor 320 of the apparatus 300 to perform the method described above.
- the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
- FIG. 26 is a block diagram of an apparatus 400 for cell reselection according to an exemplary embodiment.
- the apparatus 400 may be provided as a server.
- apparatus 400 includes a processing component 422, which further includes one or more processors, and a memory resource, represented by memory 432, for storing instructions executable by processing component 422, such as an application program.
- An application program stored in memory 432 may include one or more modules, each corresponding to a set of instructions.
- the processing component 422 is configured to execute instructions to perform the above-described methods.
- Device 400 may also include a power supply assembly 426 configured to perform power management of device 400 , a wired or wireless network interface 450 configured to connect device 400 to a network, and an input output (I/O) interface 458 .
- Device 400 may operate based on an operating system stored in memory 432, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.
- first, second, etc. are used to describe various information, but the information should not be limited to these terms. These terms are only used to distinguish the same type of information from one another, and do not imply a particular order or level of importance. In fact, the expressions “first”, “second” etc. are used completely interchangeably.
- the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information, without departing from the scope of the present disclosure.
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Abstract
Description
Claims (26)
- 一种小区重选方法,其特征在于,应用于终端,所述方法包括:接收第一消息,所述第一消息包括用于触发终端进行小区重选的时间信息。
- 根据权利要求1所述的小区重选方法,其特征在于,所述时间信息包括第一时间信息;所述方法还包括:基于所述第一时间信息,对邻小区进行测量。
- 根据权利要求2所述的小区重选方法,其特征在于,基于所述第一时间信息,对邻小区进行测量,包括:响应于邻小区的频率优先级低于或等于服务小区的频率优先级,基于所述第一时间信息,对邻小区进行测量。
- 根据权利要求2所述的小区重选方法,其特征在于,基于所述第一时间信息,对邻小区进行测量,包括:响应于邻小区的频率优先级低于或等于服务小区的频率优先级,在所述服务小区的信号质量低于预定义的信号质量门限的情况下,基于所述第一时间信息,对邻小区进行测量。
- 根据权利要求2所述的小区重选方法,其特征在于,基于所述第一时间信息,对邻小区进行测量,包括:响应于邻小区的频率优先级高于服务小区的频率优先级,对邻小区进行测量。
- 根据权利要求2至4任一项所述的小区重选方法,其特征在于,所述第一时间信息包括服务小区提供服务的第一服务时长;所述基于所述第一时间信息,对相邻小区进行测量,包括:基于所述第一服务时长确定定时器时长,响应于所述定时器时长超时,确定对邻小区进行测量。
- 根据权利要求2至4任一项所述的小区重选方法,其特征在于,所述第一时间信息包括服务小区提供服务的第一服务时刻;所述基于所述服务小区的第一时间信息,对相邻小区进行测量,包括:响应于当前时刻到达所述第一服务时刻,确定对邻小区进行测量。
- 根据权利要求2至4任一项所述的小区重选方法,其特征在于,所述方法还包括:确定小区重选的服务时间门限;响应于所述第一时间信息与所述服务时间门限值的关系,确定对邻小区进行测量。
- 根据权利要求2至8任一项所述的小区重选方法,其特征在于,所述对邻小区进 行测量之后,所述方法还包括:基于R准则,确定目标小区。
- 根据权利要求1至8任一项所述的小区重选方法,其特征在于,所述时间信息包括第二时间信息,所述方法还包括:基于所述第二时间信息,确定目标小区。
- 根据权利要求10所述的小区重选方法,其特征在于,所述第二时间信息包括邻小区提供服务的第二服务时刻;所述基于所述第二时间信息,确定目标小区,包括:确定所述第二服务时刻与第一服务时刻的最小差值,将所述最小差值对应的小区,确定为目标小区。
- 根据权利要求10所述的小区重选方法,其特征在于,所述第二时间信息包括邻小区提供服务的第二服务时长;所述基于所述第二时间,确定目标小区,包括:确定时长最长的第二服务时长,并将时长最长的第二服务时长对应的小区,确定为目标小区。
- 根据权利要求11或12所述的小区重选方法,其特征在于,所述目标小区满足S准则。
- 根据权利要求10所述的小区重选方法,其特征在于,所述第二时间信息包括邻小区提供服务的第二服务时刻;所述基于所述第二时间信息,确定目标小区,包括:基于R准则,确定至少一个候选小区;在所述至少一个候选小区中,确定第二服务时刻与第一服务时刻的最小差值,将所述最小差值对应的候选小区确定为目标小区。
- 根据权利要求10所述的小区重选方法,其特征在于,所述第二时间信息包括邻小区提供服务的第二服务时长;所述基于所述第二时间信息,确定目标小区,包括:基于R准则,确定至少一个候选小区;在所述至少一个候选小区中,将第二服务时长最长的候选小区,确定为目标小区。
- 根据权利要求14或15任一项所述的小区重选方法,其特征在于,所述基于R准则,确定至少一个候选小区,包括:基于R准则,确定服务小区R值和邻小区R值中的最大R值,将所述最大R值对应 的至少一个小区,确定为候选小区;或基于R准则,确定邻小区R值中的最大R值,将所述最大R值对应的至少一个邻小区,确定为候选小区。
- 根据权利要求14或15任一项所述的小区重选方法,其特征在于,所述基于R准则,确定至少一个候选小区,包括:在未要求满足S准则的情况下,基于R准则,确定服务小区R值和邻小区R值中的最大R值,将所述最大R值对应的至少一个小区,确定为候选小区;或在未要求满足S准则的情况下,基于R准则,确定邻小区R值中的最大R值,将所述最大R值对应的至少一个邻小区,确定为候选小区。
- 根据权利要求1所述的小区重选方法,其特征在于,所述接收第一消息,包括:基于***消息和/或无线资源控制RRC消息,接收第一消息。
- 一种小区重选方法,其特征在于,应用于网络侧设备,所述方法包括:发送第一消息,所述第一消息包括用于触发终端进行小区重选的时间信息。
- 根据权利要求19所述的小区重选方法,其特征在于,所述时间信息包括第一时间信息和/或第二时间信息。
- 根据权利要求20所述的小区重选方法,其特征在于,所述第一时间信息包括服务小区提供服务的第一服务时长和服务小区提供服务的第一服务时刻;所述第二时间信息包括邻小区提供服务的第二服务时长和邻小区提供服务的第二服务时刻。
- 根据权利要求19所述的小区重选方法,其特征在于,所述发送第一消息,包括:基于***消息和/或RRC消息,发送第一消息。
- 一种小区重选装置,其特征在于,应用于终端,所述装置包括:接收模块,用于接收第一消息,所述第一消息包括用于触发终端进行小区重选的时间信息。
- 一种小区重选装置,其特征在于,应用于网络侧设备,所述装置包括:发送模块,用于发送第一消息,所述第一消息包括用于触发终端进行小区重选的时间信息。
- 一种小区重选装置,其特征在于,所述装置包括处理器和存储器,所述存储器中 存储有计算机程序,所述处理器执行所述存储器中存储的计算机程序,以使所述装置执行如权利要求1-18中任一项所述的方法,或以使所述装置执行如权利要求19-22中任一项所述的方法。
- 一种计算机可读存储介质,用于存储有指令,当所述指令被执行时,使如权利要求1-18中任一项所述的方法被实现,或,使如权利要求19-22中任一项所述的方法被实现。
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US18/284,978 US20240196294A1 (en) | 2021-03-31 | 2021-03-31 | Cell reselection method |
EP21933907.4A EP4319308A4 (en) | 2021-03-31 | 2021-03-31 | CELL RESELECTION METHOD AND DEVICE AND STORAGE MEDIUM |
PCT/CN2021/084782 WO2022205247A1 (zh) | 2021-03-31 | 2021-03-31 | 一种小区重选方法、小区重选装置及存储介质 |
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