TW202404400A - Methods and user equipment for multi-paging - Google Patents

Abstract

Apparatus and methods are provided for multi-paging of a user equipment (UE) in a network. The network being a wireless cellular network and comprising a plurality of cells; the method being executed by the UE, and comprising a multi-paging procedure; the multi-paging procedure comprising: when the UE camps on a serving cell of the plurality of cells, checking whether a non-serving cell paging message is received on a non-serving cell of the plurality of cells, with the non-serving cell being different from the serving cell.

Description

Multiple paging methods and user equipment

The present invention relates generally to wireless communications, and, more specifically, to multi-paging of user equipment (UE) in a network.

UEs used in wireless networks are prevalent in many aspects of modern daily life. When the network attempts to communicate with the UE, how to ensure that the UE (especially mobile UE) can quickly receive and respond to the network's paging is very important for the development of the UE.

An embodiment of the present invention provides a multi-paging method for a user equipment in a network. The network is a wireless cellular network and includes multiple cells. The method is used in the network. The multi-paging method of the user equipment includes a multi-paging process, and the multi-paging process includes: when the UE camps on a serving cell among the plurality of cells, checking whether there is a non-serving cell in the plurality of cells. A non-serving cell paging message is received on a cell, where the non-serving cell is different from the serving cell.

Another embodiment of the present invention provides a multi-paging method for a user equipment in a network. The network is a wireless cellular network and includes multiple cells. The multi-paging method of user equipment includes a multi-paging process. The multi-paging process includes: when the UE camps on a serving cell among the plurality of cells, responding to a non-serving cell in the plurality of cells. A non-serving cell paging message received on a cell, where the non-serving cell is different from the serving cell.

Reference will now be made in detail to some embodiments of the invention, examples of which are illustrated in the accompanying drawings.

Figure 1 schematically depicts a conceptual diagram of a UE 100 in a wireless communication network 10. The network 10 may be a wireless cellular network and may include a radio access network (RAN) 110 and a core network 120. For example, network 10 may employ one or more radio access technologies of mobile telecommunications, such as global system for mobile communication (GSM), universal mobile telecommunication system (UMTS), long-term evolution (long-term evolution, LTE) and/or specified by the third generation partnership project (3GPP) and referred to as the second, third, fourth and fifth generations (2G , 3G, 4G and 5G) new radio (NR) of telecommunications. The radio access network 110 can implement a GSM radio access network (GRAN), a GSM EDGE radio access network (GSM EDGE radio access network, GERAN, where EDGE represents the enhanced data rate of GSM evolution). data rates for GSM evolution (EDGE)), UMTS terrestrial radio access network (UTRAN), evolved UMTS terrestrial radio access network (E-UTRAN) and/or Next generation radio access network (NG-RAN). The radio access network 110 may form the air interface between the UE 100 and the core network 120 and may include a plurality of cells, such as cells cl, c2 and c3 shown in Figure 1 .

The UE 100 may be a mobile phone, or a remote information processing system of a vehicle (eg, car, truck, etc.). UE 100 can also be a tablet computer, notebook computer, laptop computer, desktop computer, wearable accessory (gadget) (for example, smart watch, earphones or glasses, etc.), drone, digital camera, digital camcorder, machine Boxes, smart speakers, game consoles, customer-premises equipment (CPE), routers, access points, home appliances (such as smart TVs, air conditioners, lighting systems, refrigerators, washing machines, etc.), office equipment (e.g., photocopiers, printers, audio or video conferencing systems, surveillance systems, etc.), industrial equipment (e.g., assembly line robots), Internet-of-things (IoT) sensors or equipment, navigation devices, Or any electronic device that implements wireless communication functions. The UE 100 may select one of the cells of the radio access network 110 as a serving cell to camp on the selected cell, and may reselect another cell of the radio access network 110 as a new serving cell. The cell is camped on and user information can be sent to and/or received from the core network 120 via the serving cell of the radio access network 110 .

Figure 1 also depicts an example of a common scenario. In this scenario, at time t0 and location L1, when UE 100 camps on cell c1 as the serving cell and stops sending user data to and receiving user data from network 10 for longer than the time threshold, UE 100 100 may become communicatively unconnected to network 10. For example, the UE 100 may enter RRC inactive or RRC idle as specified by 3GPP, where RRC stands for Radio Resource Control. Because UE 100 becomes communicatively unconnected to network 10 while camping on cell c1, network 10 identifies cell c1 as the last seen cell of UE 100.

After time t1, the UE 100 may remain communicatively unconnected to the network 10, may move to a different location, and may reselect to camp on another cell. For example, at time t2 after time t1 and at a location L2 different from location L1, the UE 100 may camp on cell c2 as the current serving cell after one or more cell reselections. At time t3 after time t2, network 10 begins a first paging attempt to page UE 100 while UE 100 continues to camp on cell c2. For example, when the radio access network 110 or the core network 120 needs to communicate to the UE 100, and/or when the network 10 receives user data and/or incoming calls targeted at the UE 100, the network 10The first paging attempt can be started. In some practical implementations, network 10 will initiate the first paging attempt at time t3 by having cell c1 (instead of cell c2) send the paging message for paging UE 100 because cell c1 is The last cell seen by UE 100, and network 10 is unaware that UE 100 is currently camping on cell c2.

At time t3, when the network 10 only causes the last seen cell c1 to page the UE 100 for the first paging attempt, the UE 100 will not be able to receive the message sent by the cell c1 if the UE 100 operates according to the regular paging procedure. The paging message sent. According to the conventional paging procedure, the UE 100 only monitors whether it is paged by the current serving cell. Therefore, when UE 100 camps on cell c2 and network 10 causes cell c1 to page UE 100 at time t3, UE 100 will not be able to correctly receive the paging message on cell c1. This is because the UE 100 using the conventional paging procedure only monitors whether information is received on the current serving cell c2, rather than on the cell c1 that has become the non-serving cell of the UE 100 at time t3. Therefore, if the UE 100 operates according to conventional paging procedures, the UE 100 will not be able to receive and respond to pages from the network 10 quickly on the first paging attempt and will suffer from longer paging delays and/or Higher paging miss rate (miss rate).

Figures 2a to 2c depict flowcharts 200a, 200b and 200c respectively according to different embodiments of the present invention. In order to overcome the longer paging delay and/or higher paging miss rate caused by the conventional paging procedure, when the UE 100 is not communicatively connected to the network 10, such as when the UE 100 is in RRC idle or When RRC is inactive, the UE 100 may use flowcharts 200a, 200b or 200c.

As shown in Figure 2a, the steps of flowchart 200a may be described as follows.

Step 201: When the UE 100 becomes communicatively unconnected to the network 10 (eg, when the UE 100 enters the RRC idle state or the RRC inactive state), the UE 100 may begin flowchart 200a.

Step 203: As the UE 100 is camping on the serving cell, the UE 100 may compare whether one or more signal quality values of any non-serving cell meet at least one quality requirement. If one or more signals of the one or more non-serving cells meet If the quality value meets the quality requirement, the process may proceed to step 205; and if one or more signal quality values of any non-serving cell do not meet the quality requirement, the process may proceed to step 207. The non-serving cell may be a cell different from the serving cell, for example, may be or may include the cell last seen by the UE 100, and/or a qualified subset of neighboring cells of the current serving cell (no neighboring cells, one neighboring cells, some neighboring cells, or all neighboring cells). The last cell seen by the UE 100 may be the cell in which the UE 100 was camped when the UE 100 became communicatively unconnected to the network 10 (eg, when the UE 100 began to enter the RRC idle state or the RRC inactive state). The eligible subset of neighboring cells may be selected from the neighboring cells based on one or more signal quality values of each of the neighboring cells of the current serving cell. For example, if one or more signal quality values of a neighboring cell of the current serving cell meet at least one predefined quality requirement, this neighboring cell may be selected as a neighboring cell in a qualified subset of neighboring cells.

Since each cell may broadcast one or more of its own informing signals to announce its own information, one or more signal quality values of a non-serving cell may relate to the non-serving cell received and measured by the UE 100 The strength and/or power of the notification signal. For example, the notification signal may be or may include a synchronization signal (SS), a cell specific reference signal (CRS) and/or a channel state information (CSI) signal specified by 3GPP, etc. . The one or more signal quality values may be, may include, or may relate to a received signal strength indication (RSSI), a reference signal received power (RSRP) and/or a reference signal specified by 3GPP Received quality (reference signal received quality, RSRQ), etc. Each quality requirement may require that one or more signal quality values (either individually or in combination) exceed one or more associated quality thresholds.

Step 205: The UE 100 may enable the multi-paging process according to the present invention, and may perform the multi-paging process by proceeding to the steps shown in Figure 3a or Figure 3b which will be described in detail later.

Step 207: The UE 100 may compare whether one or more signal quality values of the current serving cell meet at least one quality requirement. If one or more signal quality values of the serving cell meet the quality requirements, then step 209 may be performed, and if one or more signal quality values of the serving cell do not meet the quality requirements, step 205 may be performed. The one or more signal quality values of the serving cell may relate to the strength and/or power of the serving cell's notification signal received and measured by the UE 100 . For example, the notification signal may be or may include SS, CRS and/or CSI signals, etc. The one or more signal quality values may be, may include, or may relate to RSSI, RSRP and/or RSRQ, etc.

Step 209: The UE 100 may disable the multi-paging process. For example, the UE 100 may only monitor (eg, periodically) whether the current serving cell pages the UE 100.

In an embodiment, the UE 100 may iteratively perform step 203 periodically or aperiodicly (eg, whenever the UE 100 reselects a new serving cell) to dynamically and self-adjustingly determine whether to enable multiplexing in step 205 . paging process.

As shown in Figure 2b, the steps of flowchart 200b can be described as follows. At step 201, when the UE 100 begins to communicatively disconnect from the network 10 (eg, when the UE 100 transitions to an RRC idle state or an RRC inactive state), the UE 100 may begin flowchart 200b. At step 205, the UE 100 may enable the multi-paging procedure according to the present invention and may perform the multi-paging procedure by proceeding to the steps shown in Figure 3a or Figure 3b. In one embodiment, between step 201 and step 205, the UE 100 may still compare one or more signals of the serving cell and/or the non-serving cell similarly to step 203 and/or step 207 shown in Figure 2a. Whether the quality value meets the associated quality requirement, but the multi-paging process may be enabled at step 205 regardless of whether one or more signal quality values of the serving cell and/or non-serving cell meet the associated quality requirement.

As shown in Figure 2c, the steps of flowchart 200c can be described as follows. At step 201, after the UE 100 is communicatively disconnected from the network 10 (eg, when the UE 100 becomes RRC idle or RRC inactive), the UE 100 may begin flowchart 200c. In step 204, based on one or more decision factors, the UE 100 may determine whether to enable or disable the multi-paging process of the present invention by proceeding to step 205 or step 209 respectively. At step 205, the UE 100 may enable the multi-paging procedure and may proceed to the steps shown in Figure 3a or Figure 3b. In step 209, the UE 100 may disable the multi-paging process; for example, the UE 100 may only repeatedly check whether the current serving cell pages the UE 100. In one embodiment, the UE 100 may iteratively perform step 204 periodically and/or aperiodically to dynamically and self-adjustingly determine whether to enable the multi-paging process.

Determining factors considered in step 204 may include: signal quality values of the serving cell, signal quality values of non-serving cells, criticality of timing with respect to currently running services and/or applications, e.g., currently performed by the UE 100 whether one or more applications and/or one or more services are time-critical), paging miss rate tolerance, paging delay tolerance, the action status of the UE 100, and/or The necessity of the remote information processing function (for example, whether the UE 100 is a predefined type of product, such as a remote information processing product), etc. For example, in step 204, when the UE 100 is running one or more services and/or applications that are time-critical, when the tolerance of paging miss rate is low, when the tolerance of paging delay is low, the UE 100 When the UE 100 is acting quickly, when the UE 100 is acting in a manner that causes frequent cell reselection, when the UE 100 needs to implement the remote information processing function, and/or when the UE 100 itself is a remote information processing system, the UE 100 can proceed to Step 205 is used to decide to enable the multi-paging process of the present invention.

Figures 3a and 3b depict processes 300a and 300b, respectively, according to different embodiments of the invention. After step 205 shown in Figure 2a, Figure 2b or Figure 2c, the UE 100 can perform the process 300a of Figure 3a or the process 300b of Figure 3b to implement the multi-paging process enabled at step 205.

As shown in Figure 3a, process 300a may include steps as described below.

Step 302: The UE 100 may check whether any non-serving cell paging message is received on any non-serving cell of the network 10 (Fig. 1), where the non-serving cell paging message may be composed of a cell different from the current serving cell. Paging messages sent by non-serving cells. If the UE 100 receives the non-serving cell paging message on the non-serving cell, the UE 100 may proceed to step 304; on the other hand, if the UE 100 does not receive any non-serving cell paging message on any non-serving cell , then the UE 100 may proceed to step 312.

Step 304: The UE 100 may start waiting for the waiting period T_wait, and may check whether the serving cell paging message is received on the current serving cell while waiting, where the serving cell paging message may be a paging message sent by the current serving cell. . When waiting for the waiting period T_wait to elapse, if the UE 100 receives the serving cell paging message on the serving cell, the UE 100 may proceed to step 314. On the other hand, if the UE 100 does not receive any serving cell paging message on the serving cell at the end of the waiting period T_wait, the UE 100 may proceed to step 306.

Step 306: The UE 100 may compare whether one or more signal quality values of the non-serving cell (the non-serving cell sent the non-serving cell paging message received in step 302) meets at least one quality requirement. If one or more signal quality values of the non-serving cell meet the quality requirements, the UE 100 may proceed to step 308; otherwise, the UE 100 may proceed to step 310.

The one or more signal quality values of the non-serving cell may relate to the strength and/or power of the non-serving cell's notification signal received and measured by the UE 100 . For example, the notification signal may be, or may include, SS, CRS, and/or CSI, etc.; the one or more signal quality values may be, may include, or may relate to RSSI, RSRP, and/or RSRQ, etc. Each quality requirement may require that one or more signal quality values (either individually or in combination) exceed one or more associated quality thresholds.

Step 308: The UE 100 may respond to the non-serving cell paging message on the non-serving cell, where the non-serving cell paging message is received by the UE 100 in step 302 and sent by the non-serving cell. Therefore, UE 100 may become communicatively connected to network 10.

Step 310: The UE 100 may send a notifying message to the network 10. In one embodiment, the notification message may be a message requesting registration and/or mobility updates. For example, the notification message may be a registration request from 5G Telecom, a tracking area update (TAU) from 4G Telecom, a location update (LU) from 3G Telecom, or a radio area update (RAU) from 2G Telecom. .

Step 312: After step 302, the UE 100 may check whether any serving cell paging message is received on the current serving cell of the network 10. If the UE 100 receives the serving cell paging message on the serving cell, the UE 100 may proceed to step 314; on the other hand, if the UE 100 does not receive any serving cell paging message on the serving cell, the UE 100 may reply Go to step 302.

Step 314: The UE 100 may respond (at step 312) to the serving cell paging message received on the current serving cell, and thus may become communicatively connected to the network 10.

While the UE operating according to the conventional paging procedure only checks and responds to the serving cell paging message sent on the current serving cell, the UE 100 operating according to the multi-paging procedure 300a of the present invention can not only check (step 304 and step 312) and respond (step 314) to the serving cell paging message on the serving cell, and if the UE 100 does not receive any serving cell paging message on the current serving cell, it may also check (step 302) and respond (step 308) not to Non-serving cell paging messages on the serving cell. Therefore, when the UE 100 operates according to the process 300a of the present invention, the UE 100 can receive and respond quickly even if the network 10 only pages the UE 100 on the first paging attempt on a non-serving cell rather than the current serving cell. The first paging attempt of the network 10, and thus can effectively shorten the paging delay and/or reduce the paging miss rate.

As shown in Figure 3b, process 300b may be similar to process 300a (Figure 3a). Process 300b may include steps 302, 306, 308, 310, 312, and 314 (which are also included in process 300a), but process 300b may skip step 304 that is present in process 300a. That is, when the UE 100 operates according to the process 300b, after the UE 100 receives the non-serving cell paging message on the non-serving cell in step 302, the UE 100 may proceed to step 306 without checking whether the service is received during the waiting period T_wait Cell paging message (Figure 3a). Also similar to process 300a, when operating in accordance with process 300b, in addition to checking (step 312) and responding (step 314) to the serving cell paging message on the serving cell, the UE 100 may also check (step 302) and respond (step 314) to the serving cell paging message. 308) Non-serving cell paging message on non-serving cell. Therefore, when the UE 100 operates according to the process 300b of the present invention, the UE 100 can receive and respond quickly even if the network 10 only pages the UE 100 on the non-serving cell instead of the current serving cell on the first paging attempt. The first paging attempt of the network 10, and thus can effectively shorten the paging delay and/or reduce the paging miss rate.

In short, when the UE 100 operates in accordance with the present invention, the UE 100 may check whether any non-serving cell paging message is received on one or more non-serving cells. If the non-serving cell paging message is received on the non-serving cell, the UE 100 may determine whether the serving cell paging message is received on the serving cell during the waiting period T_wait after receiving the non-serving cell paging message (Section 3a Step 304 in the figure), and/or whether one or more signal quality values of the non-serving cell meet at least one quality requirement (step 306 in Figures 3a and 3b), to determine whether to respond to the non-serving cell paging information. In one embodiment, the UE 100 may dynamically and self-adjust according to one or more selection conditions (eg, whether the UE 100 has redundancy and/or necessity to monitor serving cell paging messages during the waiting period T_wait) Select to adopt one of process 300a and process 300b.

Continuing with the example of the scenario demonstrated in Figure 1, a UE 100 operating in accordance with the present invention may start the flowchart 200a of Figure 2a, the flowchart 200b of Figure 2b or the flowchart 200c of Figure 2c at time t1. Assume that after the UE 100 camps on the cell c2 at time t2, the UE 100 has enabled the multi-paging process 300a of Figure 3a or the multi-paging process 300b of Figure 3b in step 205. Then, the UE 100 can start the multi-paging process 300b of Figure 3b on the network 10. At time t3 during a paging attempt, by executing step 302 (Figure 3a or Figure 3b), the non-serving cell paging message is quickly received on the non-serving cell c1, and therefore the long paging delay and /or high paging miss rate.

Figure 4 depicts the wait period T_wait utilized at step 304 of process 300a shown in Figure 3a. Continuing with the example of the scenario shown in Figure 1, the timing allocated for cell c1 to send a paging message may be repeated during the period T1 near time tc1. That is, if cell c1 needs to page UE 100, cell c1 can send a paging message at times such as tc1, tc1+T1, and/or tc1+2*T1. On the other hand, the timing allocated for cell c2 to send the paging message can be repeated in the period T2 near time tc2, that is, if cell c2 needs to page UE100, cell c2 can be in tc2, tc2+T2, or tc2+2* The paging message is sent at T2 and other times. In an embodiment, the period T1 may be a discontinuous reception (DRX) cycle of cell c1, and the period T2 may be a DRX cycle of cell c2.

As shown in Figure 4, there may be a time difference T_dff between time tc1 and time tc2. When the UE 100 operates according to process 300a (Fig. 3a) and is camped on cell c2 as the current serving cell (eg, after time t2 in Fig. 1), if the UE 100 is in a non-serving cell at step 302 (Fig. 3a) Upon receiving the non-serving cell paging message on c1, the UE 100 can set the length of the waiting period T_wait to be utilized in step 304 (Figure 3a) to the coverage time difference T_dff. Because the time difference T_dff may extend as long as the period T1 and/or the period T2, the UE 100 may set the waiting period T_wait according to the period T1 and/or the period T2. For example, in an embodiment, the UE 100 may set the waiting period T_wait to be no shorter than the period T2 of the current serving cell c2. In another embodiment, the UE 100 may set the waiting period T_wait to be no shorter than the period T2 of the serving cell c2 and the period T1 of the non-serving cell c1. That is, the UE 100 may set the waiting period T_wait to be no shorter than the period T1 and the period T1 of the non-serving cell c1. The maximum value in period T2. Period T1 and period T2 may be the same or different.

Figure 5 depicts when the UE 100 operates according to process 300a (Figure 3a) or 300b (Figure 3b), the UE 100 checks ( Monitor) the duration of paging messages. As shown in Figure 5, continuing the example of the scenario shown in Figure 1, cell c2 may allocate a paging duration series pd2 to send a paging message. The paging duration series may include multiple paging messages that are respectively in multiple time periods. periodic durations, such as durations d2[k] and d2[k+1] in periods T[m] and T[m+1] respectively. That is, if cell c2 needs to page the UE 100, cell c2 may perform paging during one paging duration (or individual paging durations) in the paging duration series pd1 (for example, during the period T[m] or T[m +1] during the duration d2[k] or d2[k+1]) to send the paging message. Similarly, cell c1 may allocate a paging duration series pd1 to send a paging message, and the paging duration series may include a plurality of periodic durations respectively in the plurality of periods, such as period T[m] and The durations d1[i] and d1[i+1] in T[m+1]; cell c3 can allocate the paging duration series pd3 to send the paging message, and the paging duration series can include respectively in the Multiple periodic durations in multiple time periods, such as durations d3[n] and d3[n+1] in periods T[m] and T[m+1].

If the UE 100 is operating in accordance with the present invention and after time t1 (Fig. 1) the multi-paging procedure is enabled at step 205 (Figs. 2a, 2b and 2c), the UE 100 may Radio reception is enabled during the duration of pd1, pd2 and pd3 to perform steps 302, 304 and 312 (Figs. 3a and 3b) to check whether pages are received on cells c1, c2 and c3 respectively. information. For example, when the UE 100 camps on cell c2 after time t2, the UE 100 may perform the paging duration series pd1 and pd3 during the durations (e.g., durations d1[i] and d3 in respective periods T[m] [n] Period) Radio reception is enabled to perform step 302 (Figures 3a and 3b) by checking whether any non-serving cell paging messages are received on non-serving cells c1 and c3. The UE 100 may also enable radio reception during the duration of the paging duration series pd2 (eg, during the duration d2[k] in each period T[m]) by checking whether reception is on the current serving cell c2 paging message to any serving cell to perform step 312 (Figure 3a and Figure 3b) and step 304 (Figure 3a). The UE 100 may disable radio reception at times other than the duration of the paging duration series pd1, pd2, and pd3 to reduce power consumption.

If the UE 100 operates in accordance with the present invention and disables the multi-paging process in step 209 (Figures 2a and 2c) after time t1 (Figure 1), the UE 100 can, while camping on cell c1 and cell c2, respectively Radio reception is enabled during the duration of the paging duration series pd1 and pd2 to check whether the serving cell paging message is received on the current serving cell. That is, when the UE 100 camps on the cell c1 between time t1 and time t2, the UE 100 may perform the paging duration sequence pd1 during the duration of the paging duration series pd1 (eg, at each duration d1[i] in each period T[m] Period) Enable wireless reception to check if any paging message is received on the current serving cell c1. When UE 100 camps on cell c2 after time t2, UE 100 may enable radio reception during the duration of paging duration series pd2 (eg, during each duration d2[k] in each period T[m]) , to check whether any paging message is received on the current serving cell c2. At times other than those included in the paging duration series of the current serving cell, the UE 100 may disable wireless reception to reduce power consumption.

In other embodiments not depicted, when the UE 100 operating in accordance with the present invention enables the multi-paging procedure 300a or 300b, the UE 100 may monitor different subsets of cells at different periods, respectively. For example, in one embodiment, when the UE 100 is camped on cell c2, the UE 100 may enable radio reception for a duration in the paging duration series pd1 and a duration in the paging duration series pd2 to perform each Pages on cell c1 and cell c2 are monitored in the first of two cycles. The UE 100 may enable radio reception during another duration in the paging duration series pd2 and a duration in the paging duration series pd3 to monitor cells c2 and c3 in the second of every two periods. paging on. For example, the UE 100 may monitor cells c2 and c1 during two durations d2[2*k'-1] and d1[2*i'-1] in each period T[2*m'-1]. paging, and paging on cells c2 and c3 can be monitored during two durations d2[2*k'] and d3[2*n'] in each period T[2*m]. In another embodiment, the UE 100 may perform a paging duration, a paging duration in the paging duration series pd2 in the first period, the second period, and the third period of every three periods respectively. Radio reception is enabled during one paging duration in time series pd1 and one paging duration in paging duration series pd3. For example, UE 100 may monitor paging on cell c2 during respective durations d2[3*k'-2] in respective periods T[3*m'-2]. Paging on cell c1 is monitored during each duration d1[3*i'-1] in each period T[3*m'], and may be monitored for each duration d3[3*n'] in each period T[3*m'] During this period, paging on cell c3 is monitored.

In summary, for a wireless cellular network that only sends a paging message on the last cell seen by the UE on the first paging attempt to page a UE that is not connected communicatively, it is assumed that the UE has reselected to camp on a serving cell Instead of the last seen cell, if the UE operates according to the normal paging procedure that only monitors pages on the serving cell, the UE will not be able to receive the first paging attempt. On the other hand, if the UE operates according to the present invention which can monitor (and if appropriate, respond to) paging on one or more other non-serving cells in addition to the serving cell, the UE can quickly receive the first Paging attempt. Therefore, the UE operating according to the present invention can effectively reduce the paging delay and paging miss rate.

In an example, the UE includes a processor that executes various embodiments of the present invention while executing programs stored in a memory (storage medium). In an example, the storage medium (such as a computer-readable storage medium) stores a program, and when the above program is executed, the UE causes the UE to execute various embodiments of the present invention.

Although the preferred embodiments of the present invention have been disclosed above, they are not intended to limit the present invention. Various changes, modifications and combinations can be made to each feature in each embodiment without departing from the protection scope of the invention as defined by the patent application.

10:Wireless communication network 100:UE 110:RAN 120:Core network 200a, 200b, 200c, 300a, 300b: flow chart 201-209,302-314: Steps

This application can be more fully understood by reading the following detailed description and examples with reference to the accompanying drawings, in which: Figure 1 schematically depicts a UE in a network and how the network initiates a first paging attempt to reach the UE when the UE is no longer communicatively connected to the network; Figures 2a to 2c depict flowcharts according to embodiments of the present invention, wherein each flowchart may include a multi-paging process; Each of Figures 3a and 3b depicts an implementation of the multi-paging process of Figures 2a to 2c; Figure 4 depicts the waiting period shown in Figure 3a; and Figure 5 depicts the duration for which the UE may monitor paging messages.

200b:Flowchart

201,205: steps

Claims (10)

A multi-paging method is used for a user equipment in a network. The network is a wireless cellular network and includes multiple cells. The multi-paging method includes a multi-paging process, The multi-paging process includes: When the user equipment camps on a serving cell among the plurality of cells, check whether a non-serving cell paging message is received on a non-serving cell among the plurality of cells, wherein the non-serving cell Different from the serving cell. The multi-paging method as described in claim 1, wherein the multi-paging process further includes: if the non-serving cell paging message is received on the non-serving cell, check whether the paging message is received on the serving cell. A serving cell paging message is received. The method of multi-paging as described in claim 2, wherein when checking whether the serving cell paging message is received on the serving cell, it is checked whether the paging message of the serving cell is received on the serving cell during a waiting period. The serving cell paging message. The multi-paging method as described in claim 3, wherein the waiting period is not shorter than a discontinuous reception period of the serving cell. The multi-paging method according to claim 3, wherein the waiting period is not shorter than a discontinuous reception period of the serving cell and a discontinuous reception period of the non-serving cell. The multi-paging method as described in claim 2, wherein the multi-paging process further includes: if the serving cell paging message is received on the serving cell, responding to all paging messages on the serving cell. The serving cell paging message. The multi-paging method as described in claim 2, wherein the multi-paging process further includes: if the serving cell paging message is not received on the serving cell, comparing the paging messages of the non-serving cell. whether the one or more signal quality values satisfy at least one quality requirement; and if the one or more signal quality values of the non-serving cell satisfy the at least one quality requirement, responding to the request on the non-serving cell Non-serving cell paging message. The multi-paging method according to claim 7, wherein the multi-paging process further includes: if the one or more signal quality values of the non-serving cell do not meet the at least one quality requirement, then Send a notification message. The multi-paging method according to claim 8, wherein the notification message is a registration request, tracking area update, location update or radio area update. A multi-paging method is used for a user equipment in a network. The network is a wireless cellular network and includes multiple cells. The multi-paging method is used for user equipment in the network. The paging method includes a multi-paging process, and the multi-paging process includes: When the user equipment camps on a serving cell among the plurality of cells, respond to a non-serving cell paging message received on a non-serving cell among the plurality of cells, wherein the non-serving cell The cell is different from the serving cell.