CN113596991B - Paging method, paging device and readable storage medium - Google Patents
Paging method, paging device and readable storage medium Download PDFInfo
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- CN113596991B CN113596991B CN202110614336.7A CN202110614336A CN113596991B CN 113596991 B CN113596991 B CN 113596991B CN 202110614336 A CN202110614336 A CN 202110614336A CN 113596991 B CN113596991 B CN 113596991B
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- 239000002699 waste material Substances 0.000 abstract description 9
- 230000004044 response Effects 0.000 description 37
- 238000004891 communication Methods 0.000 description 14
- 230000005540 biological transmission Effects 0.000 description 9
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/02—Arrangements for increasing efficiency of notification or paging channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/08—User notification, e.g. alerting and paging, for incoming communication, change of service or the like using multi-step notification by increasing the notification area
Abstract
The invention discloses a paging method, a paging device and a readable storage medium, wherein the paging method comprises the steps of evaluating the probability of a user equipment residing in a cell in a tracking area according to at least the information of the paged user equipment; and sending a paging notification to a base station in a tracking area where the user equipment resides, wherein the paging notification is used for notifying the base station to send a paging message to page the user equipment, the paging notification sent to the low probability base station comprises a paging delay cell, the probability of the user equipment residing in a cell of the low probability base station is lower than a first threshold, and the paging delay cell is used for indicating the base station to delay a designated time period to send the paging message. Through the mode, the wireless resource waste can be reduced.
Description
The application is a divisional application of an invention patent application with the application number of 2017108815358, the invention name of which is paging method, paging device and readable storage medium, and the application date of which is 2017, 09 and 26.
Technical Field
The present invention relates to the field of communications, and in particular, to a paging method, apparatus, and readable storage medium.
Background
In LTE/LTE-a, the core network may notify a base station in a Tracking Area (TA) where a User Equipment (UE) in a radio resource control IDLE state (rrc_idle) camps to page the UE to notify the UE to establish a connection with a base station of a cell where the UE camps currently. The UE in rrc_idle listens to the physical downlink control channel (Physical Downlink Control Channel, PDCCH) at Paging Occasions (POs) in Paging Frames (PFs). If the UE detects downlink control information (Downlink Control Information, DCI) transmitted by PDCCH and scrambled by Paging radio network temporary identifier (P-RNTI) at PO, reading Paging record transmitted by physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) indicated by DCI to check whether self identifier (Identity, ID) is included in the Paging record, if so, starting random access to establish connection with base station of current resident cell. UEs in rrc_idle may use discontinuous reception (Discontinuous Reception, DRX) techniques to save power consumption, listening to only one PO for one DRX cycle.
In New Radio, NR, the challenges of fragile Radio links and high penetration losses are faced as the system is envisaged to operate over a frequency range up to 100 GHz. To solve these problems, beamforming is adopted as a basic technique, and beam scanning is proposed to improve cell coverage. Beam scanning refers to the same signal/channel being carried by at least two beams and transmitted in at least two time units (e.g., subframes, slots, symbols, etc.) within a period.
In NR, paging messages may be sent in a beam scanning manner. Since the core network/anchor base station does not know the specific location of the UE in rrc_idle or radio resource control INACTIVE state (rrc_inactive) and the best transmit/receive beam, it may be necessary to control all base stations in the TA/notification area (Notification Area) to transmit paging messages (including P-RNTI scrambled DCI and paging records) in a beam scanning manner.
The range of available spectrum resources in NR is large, and paging configurations (e.g., DRX cycles, etc.) and beam configurations (e.g., number of beams, etc.) of different cells may be quite different, so paging occasions (including PFs and/or POs) in different cells may not be aligned, and it may occur that the paged UE has responded but some cells are still not/are still transmitting paging messages, resulting in waste of radio resources.
Disclosure of Invention
The invention mainly solves the technical problem of providing a paging method, a paging device and a readable storage medium, which can solve the problem of wireless resource waste caused by the fact that paging occasions of different cells cannot be aligned in the prior art.
In order to solve the above technical problem, a first aspect of the present invention provides a paging method, which includes: evaluating a probability of the user equipment camping on a cell in the tracking area based at least on the information of the user equipment being paged; and sending a paging notification to a base station in a tracking area where the user equipment resides, wherein the paging notification is used for notifying the base station to send a paging message to page the user equipment, the paging notification sent to the low probability base station comprises a paging delay cell, the probability of the user equipment residing in a cell of the low probability base station is lower than a first threshold, and the paging delay cell is used for indicating the base station to delay a designated time period to send the paging message.
In order to solve the above technical problem, a second aspect of the present invention provides a paging method, which includes: evaluating a probability of the user equipment residing in a cell in the notification area based at least on the information of the user equipment; sending a paging message to page the user equipment and sending a paging announcement to a base station in an announcement area where the user equipment resides, the paging announcement being for informing the base station to send the paging message to page the user equipment, the paging announcement sent to a low probability base station comprising paging delay cells, the low probability base station comprising at least part of said base stations in the announcement area, said probability that the user equipment resides in a cell of the low probability base station being below a first threshold, the paging delay cells being for instructing the base station to defer sending the paging message for a specified duration.
In order to solve the above technical problem, a third aspect of the present invention provides a paging method, which includes: and receiving a paging notification from a core network or an anchor base station, wherein if the probability of the user equipment residing in a cell of the base station is lower than a first threshold value, the paging notification comprises a paging delay unit, the probability is estimated by the core network or the anchor base station at least according to the information of the user equipment, and the paging delay unit is used for indicating the base station to delay a designated duration to send a paging message.
In order to solve the above technical problem, a fourth aspect of the present invention provides a paging device, which includes a processor and a communication circuit, the processor being connected to the communication circuit, the processor being configured to execute instructions to implement the method provided in any one of the first to third aspects of the present invention.
In order to solve the above technical problem, a fifth aspect of the present invention provides a readable storage medium storing instructions that, when executed, implement the method provided in any one of the first to third aspects of the present invention.
The beneficial effects of the invention are as follows: because the probability of the user equipment camping on the low probability base station is low, the probability of the low probability base station finding the user equipment in the paging process is low. Therefore, the core network introduces a paging delay unit into the paging notification of the low probability base station, so that the user equipment resides in the low probability base station to delay sending the paging message, thereby increasing the possibility that other base stations have found the user equipment and the low probability base station has not sent the paging message, and reducing the waste of wireless resources.
Drawings
Fig. 1 is a flow chart of a first embodiment of the paging method of the present invention;
FIG. 2 is a flow chart of a second embodiment of the paging method of the present invention;
FIG. 3 is a flow chart of a third embodiment of the paging method of the present invention;
fig. 4 is a flow chart of a fourth embodiment of the paging method of the present invention;
fig. 5 is a flow chart of a fifth embodiment of the paging method of the present invention;
fig. 6 is a flowchart of a sixth embodiment of the paging method of the present invention;
FIG. 7 is a flow chart of a seventh embodiment of the paging method of the present invention;
FIG. 8 is a flow chart of an eighth embodiment of the paging method of the present invention;
fig. 9 is a flow chart of a ninth embodiment of the paging method of the present invention;
fig. 10 is a flow chart of a tenth embodiment of the paging method of the present invention;
fig. 11 is a schematic structural view of a first embodiment of the paging device of the present invention;
fig. 12 is a schematic view of the structure of a second embodiment of the paging device of the present invention;
FIG. 13 is a schematic diagram of the structure of a first embodiment of a readable storage medium of the present invention;
fig. 14 is a schematic structural view of a second embodiment of the readable storage medium of the present invention.
Detailed Description
The invention will now be described in detail with reference to the drawings and examples. The following embodiments may be combined with each other without conflict.
The execution body of the first embodiment of the paging method of the present invention is a core network. As shown in fig. 1, the present embodiment includes:
s11: a paging notification is sent to a base station in a tracking area where the paged user equipment resides.
In this embodiment, the user equipment to be paged (hereinafter referred to as ue) is in rrc_idle, and paging is initiated by the core network. The core network knows the tracking area (hereinafter referred to as tracking area) where the user equipment is currently camping, but does not know which base station the user equipment is currently camping on. The paging notification may be sent to all base stations in the tracking area. The paging notification is used to inform the base station to send a paging message to page the user equipment. The base station receiving the paging notification may apply conventional paging directly to beam scanning to send paging messages, or may send paging messages in a new manner (e.g., response driven), without limitation.
S12: confirm that the user device was found.
The core network may confirm that the user equipment is found upon receiving a paging response message from the base station that found the user equipment. Wherein the base station that found the user equipment is the base station that the user equipment camps (rrc_idle)/connects (rrc_connected) when found. The paging response message may include a first paging response message and/or a second paging response message. The first paging response message is earlier than the second paging response message. The former can trigger the sending of the paging termination message earlier than the former, thereby further reducing the waste of wireless resources.
The transmission timing of the second paging response message may be the same as the related art, and the transmission timing of the first paging response message is before the second paging response message, and thus may also be referred to as an early paging response message.
For example, the first paging response message is sent by the base station that found the user equipment after receiving message 3 (Msg 3) from the user equipment. Message 3 is the third message in the process of the user equipment initiating random access to switch to rrc_connected, and the base station receiving it can confirm that the user equipment was successfully found, since the ID of the sender is included therein. The base station has not yet switched from rrc_idle to rrc_connected when it receives message 3, and thus finds the base station for which the base station of the user equipment resides. In this embodiment, the ue is originally rrc_idle, and the message 3 may be an RRC connection request message.
The second paging response message is sent after the base station that found the user equipment establishes a connection with the user equipment. The base station establishes a connection with the user equipment means that the user equipment transitions to rrc_connected.
S13: and sending a paging termination message to at least other base stations except the base station where the user equipment is found in the tracking area.
The paging termination message is used to inform other base stations to stop sending paging messages. For the base station that finds the user equipment, the core network may or may not send a paging termination message to it.
Through implementation of the embodiment, after confirming that the user equipment is found, the core network sends a paging termination message to at least other base stations except the base station where the user equipment is found in the tracking area so as to inform the other base stations to stop sending the paging message, and the other base stations can not continue sending unnecessary paging messages, so that waste of wireless resources is reduced.
If the base station performs paging in a response driving manner, since the paging message may include paging indicators, each paging indicator corresponds to a group of user equipment, and the number of each group of user equipment is greater than or equal to one, false alarm may occur (that is, user equipment that receives the corresponding paging indicator but is not paged still responds to the base station), if the base station can stop sending the paging indicator, wasted wireless resources including uplink resources consumed by false alarm of the user equipment in addition to downlink resources of the paging message sent by the base station are reduced.
As shown in fig. 2, a second embodiment of the paging method according to the present invention is based on the first embodiment of the paging method according to the present invention, wherein at least a part of the paging notification includes a paging delay cell. The present embodiment is a further extension of the first embodiment of the paging method of the present invention, and therefore, the same contents as those of the first embodiment of the paging method of the present invention are not described herein. The embodiment comprises the following steps:
s100: the probability of the user equipment camping on a cell in the tracking area is evaluated based at least on the information of the user equipment.
The core network may estimate the current possible positions of the plurality of user equipments and the probability that the user equipment is in each possible position according to at least the information of the user equipments, and may evaluate the probability that the user equipment resides in each cell in the tracking area in combination with the cell deployment information of the tracking area.
The information of the user device may include at least one of a movement speed, a history track, a recent activity of the user device. Recent activity may include at least one of notification area update, tracking area update, RRC connection release, RRC connection recovery, RRC connection rejection (for false alarm resolution in response driven paging mechanisms), system information request. Such information is known to the core network and therefore does not require the introduction of additional signaling overhead.
In addition to the information of the user equipment, the core network may also consider the selection/reselection priorities of the cells when evaluating the probabilities. For example, a certain currently possible location of the ue, for which the probability of the ue camping on a cell with higher selection/reselection priority is higher, is within the overlapping range of cells a and b, i.e. the ue may camp on both cell a and cell b.
S101: a paging notification including a paging delay cell is transmitted to at least the low probability base station.
The low probability base station comprises a base station in at least part of the tracking area, and the probability of the user equipment camping on a cell of the low probability base station is below a first threshold. In selecting a low probability base station, the core network may consider the number of scanned beams in the cell in addition to the dwell probability. For example, only base stations that simultaneously meet the first threshold of the dwell probability and scan for cells with a number of beams greater than the second threshold are selected as low probability base stations.
The paging delay cell is used for indicating the base station to delay the designated time period to send the paging message, and the paging delay cell can explicitly or implicitly indicate the length of the designated time period. The specified duration may be expressed in terms of an actual duration or a product of a time length unit (omitted) and a multiple. The duration unit may be one paging cycle, DRX cycle, beam scanning cycle, etc.
If there is more than one low probability base station, the designated duration of the different paging delay cell indications may be the same or different. If different, the designated duration may be inversely related to the corresponding estimated probability, i.e. the lower the probability that the user equipment resides in the cell of a certain low probability base station, the longer the designated duration indicated by the paging delay cell in the paging notification sent by the core network to that low probability base station.
For paging messages sent to other base stations in the tracking area than the low probability base station, the paging delay cells may not be included, or may be included (the indicated specified duration may be 0 to indicate that the paging message is normally sent).
S102: confirm that the user device was found.
S103: and sending a paging termination message to at least other base stations except the base station where the user equipment is found in the tracking area.
By implementing the embodiment, the core network introduces the paging delay cell into at least part of the paging notification, so that the base station with low residence probability of the user equipment delays sending the paging message. The probability that the low probability base station finds the user equipment in the paging process is lower, the probability that the paging termination message is received correspondingly is higher, the probability that the paging message is delayed to be sent can be improved, the probability that the low probability base station receives the paging termination message and does not start sending the paging message yet, and even if the low probability base station starts sending the paging message when receiving the paging termination message, the sending time of the paging message can be shortened. The paging time of the user equipment is not obviously influenced, and the waste of wireless resources is further reduced.
In other embodiments, the core network may not be configured with paging delay cells, and paging delay cells may not be included in all paging notifications. For example, when the paging ue has a high system delay requirement, the core network may choose to send all paging notifications directly without configuring the paging delay cells in order to avoid the possible effect of the paging delay cells on the paging time.
The execution body of the third embodiment of the paging method of the present invention is a base station, which is an anchor base station in this embodiment. The base station is connected to the core network and communicates wirelessly with the user equipment to provide communication coverage for the corresponding geographical area. The base station may be a macro base station, a micro (micro) base station, a pico (pico) base station, or a home base station (femtocell). In some embodiments, a base station may also be referred to as a radio base station, access point, node B, evolved node B (eNodeB, eNB), gNB, or other suitable terminology. As shown in fig. 3, the present embodiment includes:
s21: a paging message is sent to page the user equipment and a paging notification is sent to the base station in the notification area where the user equipment resides.
In this embodiment, the ue is in rrc_inactive, and paging may be initiated by the anchor base station (anchor gNB). The anchor base station knows the notification area (Notification Area, NA) where the UE is located. The anchor base station stores an Access context (UE) and a connection relationship with a Core Network (CN). The base station where the user equipment is currently camping is not necessarily an anchor base station. The anchor base station may initiate paging after receiving a data transmission request from the core network, and send a paging notification to other base stations in the notification area.
The transmission object of the paging announcement may be all other base stations except the anchor base station itself in the announcement area. The paging notification is used to inform the base station to send a paging message to page the user equipment. The anchor base station and the base station receiving the paging notification may apply conventional paging directly to beam scanning to send paging messages, or may send paging messages in a new manner (e.g., response driven), without limitation.
S22: confirm that the user device was found.
If the user equipment resides in the anchor base station, random access is started to restore the connection with the anchor base station, and the anchor base station is the base station for finding the user equipment. The anchor base station may then acknowledge finding the user equipment based on receiving message 3 from the user equipment. Message 3 is the third message in the process of the user equipment initiating random access to switch to rrc_connected, and the base station receiving it can confirm that the user equipment was successfully found, since the ID of the sender is included therein. In this embodiment, the ue is originally rrc_inactive, and the message 3 may be an RRC connection recovery request.
If the user equipment is not camped on the anchor base station, random access is initiated to resume connection with the base station on which it resides. The camped base station is not the anchor base station and may not have the context of the user equipment saved, and a request to retrieve the user equipment context needs to be sent to the anchor base station to obtain the context after receiving message 3. Retrieving the user equipment context request implicitly indicates that the user equipment has been found.
If the camped base station maintains the context of the user equipment, it may be selected to send a page response message to the anchor base station after receiving message 3 and/or resuming connection with the user equipment to explicitly indicate that the user equipment is found.
S23: and sending a paging termination message to at least other base stations except the base station where the user equipment is found in the notification area.
The paging termination message is used to inform other base stations to stop sending paging messages. The anchor base station itself will also stop sending paging messages. If the base station that finds the user equipment is not the anchor base station itself, the anchor base station may or may not send a paging termination message to it.
Through implementation of the embodiment, after confirming that the user equipment is found, the anchor base station sends a paging termination message to at least other base stations except the base station where the user equipment is found in the tracking area so as to inform the other base stations to stop sending the paging message, and the other base stations can not continue sending unnecessary paging messages, so that waste of wireless resources is reduced.
If the base station performs paging in a response driving manner, since the paging message may include paging indication, each paging indication corresponds to a group of user equipment, and the number of each group of user equipment is greater than or equal to one, false alarm may occur (i.e., the user equipment that receives PI but is not paged still responds to the base station), if the base station can stop sending the paging indication, wasted wireless resources including uplink resources consumed by false alarm of the user equipment in addition to downlink resources of the paging message sent by the base station are reduced.
As shown in fig. 4, a fourth embodiment of the paging method according to the present invention is based on the third embodiment of the paging method according to the present invention, wherein at least part of the paging notification includes a paging delay cell. The present embodiment is a further extension of the third embodiment of the paging method of the present invention, and therefore the same contents as those of the third embodiment of the paging method of the present invention are not described herein. The embodiment comprises the following steps:
s200: the probability of the user equipment camping on a cell in the notification area is evaluated at least on the basis of the information of the user equipment.
S201: a paging message is sent and a paging notification including a paging delay cell is sent to at least the low probability base station.
The specific description of the dwell probability, low probability base station and paging delay cells will be referred to in relation to the second embodiment of the paging method of the present invention and will not be repeated here.
S202: confirm that the user device was found.
S203: and sending a paging termination message to at least other base stations except the base station where the user equipment is found in the notification area.
In other embodiments, the anchor base station may not be configured with paging delay cells, and paging delay cells may not be included in all paging notifications. For example, when the paging user equipment has a high system delay requirement, the anchor base station may choose to send all paging notifications directly without configuring the paging delay cells in order to avoid the influence of the paging delay cells on the paging time.
The execution subject of the fifth embodiment of the paging method of the present invention is a base station, and is not an anchor base station of the notification area where the user equipment is located. As shown in fig. 5, the present embodiment includes:
s31: paging notifications are received from the core network or anchor base station.
The paging notification is used to inform the base station to send a paging message to page the user equipment. The paging notification may or may not include a paging delay cell.
S32: a paging message is sent to page the user equipment in response to the paging notification.
The base station may apply conventional paging directly to beam scanning to send paging messages or may send paging messages in a new manner (e.g., response driven), without limitation.
If the paging notification includes a paging delay cell, the base station needs to defer sending the paging message for a specified duration indicated by the paging delay cell.
S33: and receiving a paging termination message from the core network or the anchor base station when the user equipment is not found.
Meaning that the user equipment is not camping in the cell of the base station and has been found, it is not possible to find the user equipment by continuing to send the paging message, and the paging message has failed.
S34: and stopping sending the paging message in response to the paging termination message.
For details reference is made to the description of the previous embodiments.
Through implementation of the embodiment, after confirming that the user equipment is found, the core network/anchor base station sends a paging termination message to at least other base stations except the base station that found the user equipment in the tracking area/notification area to inform the other base stations to stop sending the paging message, and the other base stations can not continue sending unnecessary paging messages, so that waste of wireless resources is reduced.
As shown in fig. 6, a sixth embodiment of the paging method according to the present invention is based on the fifth embodiment of the paging method according to the present invention, and after S32, the method further includes:
s35: after the user equipment is found, a paging response message is sent to the core network or a request for retrieving the user equipment context is sent to the anchor base station.
Finding the user equipment may comprise receiving a message 3 from the user equipment and/or establishing a connection with the user equipment. Message 3 may be an RRC connection request message or an RRC connection resume request. For details reference is made to the description of the previous embodiments.
The specific signaling interaction procedure is illustrated below in conjunction with the accompanying drawings, and the same parts as in the previous embodiments will not be repeated.
As shown in fig. 7, in a seventh embodiment of the paging method of the present invention, paging is initiated by the core network, the paging notification to the base station 3 includes a paging delay cell, and the core network transmits a paging termination message after receiving a second paging response message from the base station (base station 1) that found the user equipment. For convenience of illustration, only 1, 2 and 3 total three base stations are shown in the figure, and the number of actual base stations can be more or less; the transmission of possible paging messages by base stations (base stations 2 and 3) that have not found the user equipment are also not shown. The embodiment comprises the following steps:
s111: the core network sends paging notifications to the base stations 1, 2 and 3.
The order of sending the paging notifications is merely illustrative. The paging notification to the base station 3 includes a paging delay cell.
S112: the base station 1 transmits paging messages in a beam scanning manner.
The conventional paging can be directly applied to beam scanning, or a new mode can be adopted, and the specific transmission process is omitted.
S113: the user equipment sends a message 1 to the base station 1. Physical random access channel (Physical Random Access Channel, PRACH) preamble.
Random access is initiated.
S114: the base station 1 sends a message 2 to the user equipment a random access response (Random Access Response, RAR).
S115: the user equipment sends a message 3.Rrc connection request to the base station 1.
S116: the base station 1 sends a message 4.Rrc connection setup to the user equipment.
The user equipment then transitions from rrc_idle to rrc_connected.
S117: the user equipment sends a message 5.Rrc connection setup complete to the base station 1.
S118: the base station 1 sends a second paging response message to the core network.
S119: the core network sends a paging termination message to the base stations 2 and 3.
The order of sending the page termination messages is illustrative only.
As shown in fig. 8, in an eighth embodiment of the paging method of the present invention, paging is initiated by the core network, the paging notification sent to the base station 3 includes a paging delay cell, and the core network sends a paging termination message after receiving a first paging response message from the base station (base station 1) that found the user equipment. The difference between this embodiment and the embodiment corresponding to fig. 7 is that the base station 1 transmits the first paging response message instead of the second paging response message, and the same parts are not repeated. The embodiment comprises the following steps:
s121: the core network sends paging notifications to the base stations 1, 2 and 3.
S122: the base station 1 transmits paging messages in a beam scanning manner.
S123: the user equipment sends a message 1 to the base station 1. Physical random access channel (Physical Random Access Channel, PRACH) preamble.
S124: the base station 1 sends a message 2 to the user equipment a random access response (Random Access Response, RAR).
S125: the user equipment sends a message 3.Rrc connection request to the base station 1.
S126: the base station 1 sends a first paging response message to the core network.
S127: the core network sends a paging termination message to the base stations 2 and 3.
S128: the base station 1 sends a message 4.Rrc connection setup to the user equipment.
S129: the user equipment sends a message 5.Rrc connection setup complete to the base station 1.
S127 is performed after S126, S129 is performed after S128, and the order of execution between S126/S127 and S128/S129 is not limited.
As shown in fig. 9, in a ninth embodiment of the paging method of the present invention, paging is initiated by the access network, the paging notification sent by the anchor base station (base station 1) to the base station 3 includes a paging delay cell, and the user equipment resides in the anchor base station. For convenience of illustration, only 1, 2 and 3 total three base stations are shown in the figure, and the number of actual base stations can be more or less; the transmission of possible paging messages by base stations (base stations 2 and 3) that have not found the user equipment are also not shown. The embodiment comprises the following steps:
s131: base station 1 sends paging notifications to base stations 2 and 3.
The order of sending the paging notifications is merely illustrative. The paging notification to the base station 3 includes a paging delay cell.
S132: the base station 1 transmits paging messages in a beam scanning manner.
The order of S131 and S132 is illustrative only.
The conventional paging can be directly applied to beam scanning, or a new mode can be adopted, and the specific transmission process is omitted.
S133: the user equipment sends a message 1 to the base station 1. Physical random access channel (Physical Random Access Channel, PRACH) preamble.
Random access is initiated.
S134: the base station 1 sends a message 2 to the user equipment a random access response (Random Access Response, RAR).
S135: the user equipment sends a message 3.Rrc connection resume request to the base station 1.
S136: base station 1 sends a paging termination message to base stations 2 and 3.
The order of sending the page termination messages is illustrative only. The order of execution between this step and S137/S138 is merely illustrative.
S137: the base station 1 sends a message 4.Rrc connection restoration to the user equipment.
The user equipment then transitions from rrc_inactive to rrc_connected.
S138: the user equipment sends a message 5.Rrc connection restoration complete to the base station 1.
As shown in fig. 10, in a tenth embodiment of the paging method of the present invention, paging is initiated by the access network, the paging notification sent by the anchor base station (base station 1) to the base station 3 includes a paging delay cell, and the user equipment resides in the non-anchor base station (base station 2). The difference between this embodiment and the embodiment corresponding to fig. 9 is that the base station where the ue resides is different, and the same parts are not repeated. The embodiment comprises the following steps:
s141: base station 1 sends paging notifications to base stations 2 and 3.
S142: the base station 2 transmits paging messages in a beam scanning manner.
The conventional paging can be directly applied to beam scanning, or a new mode can be adopted, and the specific transmission process is omitted.
S143: the user equipment sends a message 1 to the base station 2. A physical random access channel (Physical Random Access Channel, PRACH) preamble.
Random access is initiated.
S144: the base station 2 sends a message 2 to the user equipment a random access response (Random Access Response, RAR).
S145: the user equipment sends a message 3.Rrc connection resume request to the base station 2.
S146: the base station 2 sends a retrieve user equipment context request to the base station 1.
The base station 2 does not save the context of the user equipment.
S147: the base station 1 sends a retrieve user equipment context response to the base station 2.
Including the context of the user device.
S148: the base station 1 transmits a paging termination message to the base station 3.
The order of sending the page termination messages is illustrative only. The order of execution between this step and S147/S149 is illustrative only.
S149: the base station 2 sends a message 4.Rrc connection restoration to the user equipment.
The user equipment then transitions from rrc_inactive to rrc_connected.
S150: the user equipment sends a message 5.Rrc connection restoration complete to the base station 2.
As shown in fig. 11, a first embodiment of the paging device of the present invention includes: processor 110 and communication circuit 120, processor 110 is connected to communication circuit 120.
The communication circuit 120 is used to transmit and receive user data, and is an interface through which the paging device communicates with other communication devices.
The processor 110 controls the operation of the paging device, and the processor 110 may also be referred to as a CPU (Central Processing Unit ). The processor 110 may be an integrated circuit chip with signal processing capabilities. Processor 110 may also be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The processor 110 is configured to execute instructions to implement the method provided by the first or second embodiment of the paging method of the present invention.
The paging device in this embodiment may be a core network.
As shown in fig. 12, a second embodiment of the paging device of the present invention includes: processor 210 and communication circuit 220, processor 210 is connected to communication circuit 220.
The communication circuit 220 is used to transmit and receive user data, and is an interface through which the paging device communicates with other communication devices.
The processor 210 controls the operation of the paging device, and the processor 210 may also be referred to as a CPU (Central Processing Unit ). The processor 210 may be an integrated circuit chip with signal processing capabilities. Processor 210 may also be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The processor 210 is configured to execute instructions to implement the method provided by any one of the third through sixth embodiments of the paging method of the present invention and any non-conflicting combination.
The paging device in this embodiment may be a base station or may be a separate component, such as a baseband board, that may be integrated into the base station.
As shown in fig. 13, a first embodiment of the readable storage medium of the present invention includes a memory 310, the memory 310 storing instructions that when executed implement the method provided by the first or second embodiment of the paging method of the present invention.
The Memory 310 may include a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a Flash Memory (Flash Memory), a hard disk, an optical disk, and the like.
The readable storage medium in this embodiment may be a separate component or may be integrated with the core network.
As shown in fig. 14, the second embodiment of the readable storage medium of the present invention includes a memory 410, and the memory 410 stores instructions that, when executed, implement the method provided by any one of the third to sixth embodiments of the paging method of the present invention and any non-conflicting combination.
The Memory 410 may include a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a Flash Memory (Flash Memory), a hard disk, an optical disk, and the like.
The readable storage medium in this embodiment may be a separate component, or may be integrated with the base station, or a component in the base station, such as a baseband board.
In the several embodiments provided in the present invention, it should be understood that the disclosed method and apparatus may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing description is only of embodiments of the present invention, and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (13)
1. A paging method, comprising:
evaluating a probability of a user equipment camping on a cell in a tracking area based at least on information of the user equipment being paged;
sending a paging notification to a base station in the tracking area where the user equipment resides, wherein the paging notification is used for notifying the base station to send a paging message to page the user equipment, the paging notification sent to a low probability base station comprises a paging delay cell, the probability that the user equipment resides in the cell of the low probability base station is lower than a first threshold, and the paging delay cell is used for indicating the base station to delay sending the paging message for a specified duration.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the number of scanned beams of the low probability base station is greater than a second threshold.
3. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the information of the user equipment includes at least one of a movement speed, a historical track and a recent activity of the user equipment.
4. The method of claim 3, wherein the step of,
the recent activity includes at least one of a notification area update, a tracking area update, an RRC connection release, an RRC connection recovery, an RRC connection rejection, a system information request.
5. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the evaluating the probability of the user equipment camping on the cell in the tracking area at least according to the information of the user equipment comprises:
and evaluating the probability that the user equipment resides in the cell according to the information of the user equipment and the selection/reselection priority of the cell.
6. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the specified duration is inversely related to the probability.
7. A paging method, comprising:
evaluating a probability of a user equipment residing in a cell in a notification area based at least on information of the user equipment;
transmitting a paging message to page a user equipment and transmitting a paging announcement to a base station in a notification area where the user equipment resides, the paging announcement being for informing the base station to transmit the paging message to page the user equipment, the paging announcement transmitted to a low probability base station comprising paging delay cells, the low probability base station comprising at least part of the base stations in the notification area, the probability that the user equipment resides in the cell of the low probability base station being below a first threshold, the paging delay cells being for instructing the base station to defer transmitting the paging message for a specified duration.
8. The method of claim 7, wherein the step of determining the position of the probe is performed,
the number of scanned beams of the low probability base station is greater than a second threshold.
9. The method of claim 7, wherein the step of determining the position of the probe is performed,
the information of the user equipment includes at least one of a movement speed, a historical track and a recent activity of the user equipment.
10. The method of claim 7, wherein the step of determining the position of the probe is performed,
recent activity includes at least one of notification area update, RRC connection release, RRC connection recovery, RRC connection rejection, system information request.
11. The method of claim 7, wherein the step of determining the position of the probe is performed,
the evaluating the probability of the user equipment camping on the cell in the notification area at least according to the information of the user equipment comprises:
and evaluating the probability that the user equipment resides in the cell according to the information of the user equipment and the selection/reselection priority of the cell.
12. The method of claim 7, wherein the step of determining the position of the probe is performed,
the specified duration is inversely related to the probability.
13. A paging method, comprising:
and receiving a paging notification from a core network or an anchor base station, wherein if the probability of the user equipment residing in a cell of the base station is lower than a first threshold value, the paging notification comprises a paging delay cell, the probability is estimated by the core network or the anchor base station at least according to the information of the user equipment, and the paging delay cell is used for indicating the base station to delay sending a paging message for a specified duration.
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| CN202110614336.7A CN113596991B (en) | 2017-09-26 | 2017-09-26 | Paging method, paging device and readable storage medium |
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| CN201710881535.8A CN109561500B (en) | 2017-09-26 | 2017-09-26 | Paging method, paging device and readable storage medium |
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| CN114503785A (en) * | 2019-09-30 | 2022-05-13 | 华为技术有限公司 | Method and apparatus for paging |
| CN113055960B (en) * | 2019-12-27 | 2023-02-24 | 北京融昱信息技术有限公司 | Base station reselection method, device, equipment and medium |
| CN111263415B (en) * | 2020-01-17 | 2021-11-30 | Oppo广东移动通信有限公司 | Cell residence method, related equipment and storage medium |
| CN114916063A (en) * | 2021-02-09 | 2022-08-16 | 中国移动通信有限公司研究院 | Method for sending and receiving paging message, network equipment and terminal |
| CN113518427B (en) * | 2021-04-19 | 2024-04-09 | Tcl通讯（宁波）有限公司 | Paging method and device of 5G network, storage medium and core network |
| CN116094678A (en) * | 2021-11-05 | 2023-05-09 | 展讯通信（上海）有限公司 | Method, device and terminal for indicating paging in advance |
| WO2023133832A1 (en) * | 2022-01-14 | 2023-07-20 | 上海移远通信技术股份有限公司 | Wireless communication method and apparatus |
| CN115915396B (en) * | 2023-02-01 | 2023-08-04 | 荣耀终端有限公司 | Paging method and electronic equipment |
| CN116528361A (en) * | 2023-04-06 | 2023-08-01 | 国网天津市电力公司信息通信公司 | 230 system paging method, 230 system paging device, electronic equipment and storage medium |
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| WO2019061837A1 (en) | 2019-04-04 |
| CN109561500B (en) | 2021-08-24 |
| CN113596991A (en) | 2021-11-02 |
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