TW457821B - Selective and efficient messaging in a mobile communications system - Google Patents

Abstract

A selective messaging procedure efficiently distributes messages only to eligible cells and eliminates distribution of unnecessary messaging information to ineligible cells in a mobile communications network. When information is received in the network that is intended for a mobile station located in an area containing one or more cells, the admission status associated with each of the cells in that area is determined. A message is then sent to one or more of the plural cells whose associated admission status is determined to be favorable. On the other hand, that message is not sent to any cell having an unfavorable admission status. In order to keep track of cell admission status, a list data structure is established in memory for each area and may include, for example, an admission indicator for each listed cell. Based on one or more admission criteria, an appropriate value may be stored for each admission indicator in the list. When a message for the mobile station is detected, and the area in which that mobile station is currently registered is determined, a decision is made whether to send that message to one or more cells in the area depending on the admission indicator value for the one or more cells in that area. An alternative cell list structure adds a cell to the list if the condition is met, and removes a cell from the list if the condition is not met. The admission status of each cell is regularly monitored and updated.

Description

4 5/821 5. Description of the invention (1) Scope of the invention The present invention relates to wireless communication, and particularly to a method and device for selectively and efficiently transmitting control messages for mobile wireless networks. BACKGROUND AND SUMMARY OF THE INVENTION In a typical mobile wireless communication system, a geographic area is divided into multiple cell areas; each cell area is responsible for a base station connected to a wireless network. And provide a portable wireless to each user (mobile phone user) in the mobile wireless system; wireless is equivalent to transmitting one or more types of information (such as voice through one or more wireless base stations and cellular wireless networks) , Data, images, etc.) Each mobile station 3 includes a plurality of channel units; the channel unit includes a transmitter, a receiver, and a controller. In addition, each base station is also equipped with an omnidirectional antenna to ensure equal transmission in each direction over a large cell area. Or equipped with several directional antennas, each directional antenna is responsible for a specific sector cell. Each mobile station also contains a transmitter, a receiver, a controller, and a user interface, and is identified by a specific mobile station identifier. Generally, a mobile phone user can be identified by another identifier; for example, an international mobile phone identification code (IMSI). The continued growth of mobile wireless systems has stimulated the development of ways to improve efficiency. The areas that can improve efficiency are related to controlling the signal signals from the wireless network control terminal to multiple cells in the network. For example, many call messages are provided to the mobile communications network, and these call messages must eventually be sent to such mobile stations through calls sent from such cells. Mobile networks can often be divided into many calling areas; in general,

Page 8 ^ 57821 V. Description of the Invention (2) Each calling area contains multiple cells. Deliver the call message to all call areas in the network service area "Each mobile station will periodically 'or notify the network where it is currently in the process of recording access as it crosses the edge of the call area' ^ If the call area of the mobile station is known, then the call information of that mobile station will be transmitted to all base stations in the specific call area. Each base station will also sequentially send call messages to each cell connected to that base station. If the mobile station does not respond to the call, it is either in the same calling area or repeats the calling process in a larger area. Therefore, when the wireless network control terminal receives a call request, there will be a relatively large air signal related to disseminating the call message to all cells in the calling area. In some cell systems, air signals can be carried across radio interfaces between base stations and mobile stations. As long as the base station receives the call request, it transmits a call message through the wireless call channel of each relevant cell. In any mobile communication system, the number of control signals that cross the wireless interface is a very important point of controversy; especially the cTdma (code division multiple access) type of mobile communication system. The maximum capacity limit of a CDMA (Divided Code Multiple Access) system is the maximum interference level of a system containing both expected and unexpected interference signals. If there is a high level of interference (for example, from a wireless network point of view, " now " a cell that is overloaded; the level of interference caused by the majority of the mobile stations being transmitted within that cell) 'cannot The need for additional beer or other wireless resources. Therefore, there is no need to pass the call message to the overloaded cell '. Even if the mobile station is located in such a cell, the paging demand for the related call need not be achieved' because the cell is already overloaded. The problem derived from the present invention is that under such a degree of blockage, when one or more cells in the calling area will not

Page 9 457821 V. Description of the invention (3) How to best send the call demand when the new paging demand of the wireless resource is allowed. The present invention uses a selective signal procedure to solve this problem. The selective signal procedure is to efficiently transmit signals only to the appropriate cells, and reduce unnecessary information to the inappropriate cells. Here, in the broad sense, “fit” refers to the use of a suitable cell or the ability to respond to information and information, which is not possible with inappropriate cells. When information is received in a mobile communications network (referred to as a mobile station located in an area that includes one or more cells), the approval status of each cell in that area is determined. Messages related to the information provided to the mobile station are then transmitted to one or more cells whose associated approval status is selected as good. Conversely, do not send a message to one or more of its related approvals .. The status should be set .. selected .. as _no .. good .. blisters. The message data may be any type of message; in an example of a non-limiting specific embodiment, the message data is related to a call requirement to a mobile station. Although any standard can be used to determine the approval status, in the example of this specific embodiment, the blocking status or the overload limit point is used to determine the approval status. A cell will be classified as having a good recognition status when it is at or below the blocking point. When a cell is occluded above the occlusion threshold, it is classified as having a poorly recognized status. The call message is only transmitted to cells in the call area recorded by the mobile station, or cells with a good recognition status. In fact, if the recognition status of the cells currently recorded by the mobile station is determined to be bad, no message will be transmitted to any cell in the area. In order to maintain the normal track of the recognition status of each cell, a register data structure is established for each call area in the memory, and it can include

Page 10 4 5 7 8 2 1 V. Description of the invention (4) Recognition instructions for regional cells. An appropriate value may be stored for each accreditation instruction on the roster individually according to one or more accreditation criteria. When a message from a mobile station is detected and the area where the mobile station is currently recorded has been determined, it is possible to decide whether to send the message to one or more cells in the area according to the recognized indication value of one or more cells in the area. . The status of each cell in the register is regularly monitored and updated. An alternative cell roster structure can also be used. For each call area, the degree of blockage of each cell can be detected to determine whether the limit point has been exceeded. If the limit point is not exceeded, add a cell to its calling area. Conversely, if the limit point is exceeded, the cell is removed from the roster. When a message from a mobile station is detected, the appropriate calling area can be identified, and the calling message is only distributed to the cells now contained in the cell list of the calling area. Not only is the status of each cell regularly monitored, but the cell roster is also updated. The present invention reduces the amount of control signals in a wireless network by not transmitting useless or unsuitable information in the current situation. This can reduce the data processing and air signal of the wireless network itself. At the same time, the data processing and signals between the wireless base station and the mobile station on the wireless interface can also be reduced. In other words, if the mobile station currently located in the blocking cell is called by the associated base station on the wireless interface, then the mobile station will naturally respond to a wireless resource requirement on the wireless interface to support paging corresponding to the call. The base station must then send a message on another wireless interface to the mobile station that rejected the request; because the cell is now overloaded. By not transmitting these unwanted signals on the wireless interface, the present invention reserves a small amount of wireless resources for more

Page 11 V. Description of the invention (5) Needs to be helpful and avoid p < taking the already obstructed intertemporal. The short description of the figure and the other purpose of the present invention and the present invention, the Secret Du S 丨 #-features and advantages will be exemplified in the following. ^ Will also be explained in the drawings; reference symbols in the drawings and the whole The same part is about ._ 'Off. As shown in the multiple diagrams, the functional blocks and components are the most important for those who are adept at the present invention. These functions can be based on individual hardware circuits and suitable microprocessors. 1. A special integrated circuit ("10, and / or one or ^ digital signal processors to achieve (Dsps). Figure 1 shows a diagram of an exemplary mobile wireless communication system used in the present invention") 2 is a simplified functional block diagram of a wireless network controller and a base station, FIG. 3 is a simplified functional block diagram of a mobile station; FIG. 4 illustrates an example location and a recording area; and FIG. 5 is a specific implementation according to the present invention For example, to illustrate the flow of the selective communication process; ° is a diagram of a conceptual example of a data structure for multiple call areas; FIG. 7 is a selective call routine according to an example; and There is no limited selective call routine in an exemplary embodiment; and FIG. 8 is another example, according to another exemplary embodiment of the present invention / with a limited selective call routine.

Page 12 457q2i V. Detailed description of the invention (6) Μ 图 In the following description, for explanation and without limitation, it is published. It is advisable to, for example, specific specific embodiments, network architecture, information flow, detailed information Technology and more. It is expected that the present invention will be further understood. Of course, for those of you who know the present invention, the present invention can be implemented in other specific embodiments; and these specific embodiments do not use the above-mentioned special details such as' the context of the call message and the paradigm of blocking cells Medium, =. = Invention 'Those who are good at this invention will pay more attention to this invention, which can show the type of information and the approval status of any type. In other examples, detailed descriptions of methods, interfaces, devices, protocols, and signaling techniques are all omitted, so as not to obscure the unnecessary detailed description of the present invention. The overall nature of the present invention will be shown in FIG. 1 The unrestricted paradigm of Mobile Telecommunications System (UMTS) 10 is described in context. As is typical in Cloud 2 and Circuit Switching, the external core network can be, for example, the Public Traffic Network (PSTN) and / or the Integrated Digital Services Network (ISDN). Another—circuit / switch, the external core network can correspond to another public land mobile unit (PLMN). A typical, packet-switched, cloud-like external architecture shown in Cloud 14 is, for example, an IP network, such as the Internet. The core 7 is two-way coupled to the corresponding network server 16. Public Switched Telephone Network (PSTN) / Integrated Digital Services Network (ISDN) 12 and other public land mobile wireless networks (PLMN) 1 3 are connected to the CSCN, for example, those that can provide circuit switched services Mobile Switching Center (MSC). In the existing cellular network model, such as the Global System for Mobile Communications (GSM) here, the mobile switching center (MSC) 18 is connected to the base station subsystems (BSs) 22 on the interface A;

Article 13 I a5? 82 5. Description of the invention (7) The base station subsystem (BSS) 2 2 is connected to the wireless base station 23 on the interface A. The packet switching network 14 is connected to a packet switching core (PSCN), such as GSM sometimes referred to as a GPRS server (SGSN), and is suitable for an integrated packet wireless service (GPRS) terminal 20 that provides a packet switching type service. Each core network server 18 and 20 is also connected to a wireless access network (UTi? AN) 24 on the UMTS earth through a wireless access network interface. UTRAN 24 includes one or more wireless network systems (RNS) 25; wherein (RNS) 25 has a radio network controller (RNC) 26 coupled to multiple base stations (BS) 28 and RNCs in UTRAN 24. The best is "Wireless Access on the Wireless Interface Based on Broadband, Code Division Multiple Access (WCDMA) 'and it has its own wireless channel allocated using CDMA spreading code. Of course, other access methods are also used. ffCDMA can provide broadband for multimedia services, and other high transmission rate requirements, as well as rugged features such as diverse distribution and RAKE receivers; to ensure high-quality communication services in a frequency-changing environment. Each mobile station is assigned its own scrambling code 'to allow base station 28 to identify transmissions from that particular mobile station. The mobile station also uses its own scrambling code to identify transmissions from the base station either through general broadcast, common channels, or the transfer wheel specifically for that mobile station. The scrambling code can distinguish the scrambled signal from all other transmissions and noises that appear in the same district. The simplified functions of the radio network controller 26 and the base station 28 are shown in FIG. The wireless network controller 26 includes a memory 50 coupled to the data processing; the data processing circuit 52 can perform most of the wireless operations and operations. These data processing operations are used to perform its operations.

7Q2 V. Description of the invention (8) RNC 26 communicates with other entities such as the core network server and others. Conducted communication with the base station. The data processing circuit may include a computer microprocessor, a microcontroller, a dedicated logic circuit, a DSP, an ASIC, etc., which is suitable for programming or general purpose, one of the foregoing or a combination circuit. The base station 28 includes a negative material processing and control unit 54 and can additionally perform processing operations related to communication with the plutonium 26. The control unit 54 can perform multiple measurements and control operations related to the base station wireless device; wherein the base station wireless device, such as a transceiver 56 connected to one or more antennas 58. The $ dynamic station $ 30 shown in the functional block format shown in FIG. 3 includes a data processing control unit β 0 that can control the evening operations required by the mobile station 30. The data processing and control unit 36 of the mobile station can provide control signals and data to the wireless transmitter 62 connected to the antenna 66. The data processing and control unit 60 and the receiver "both can be powered by a battery 64. The amount of power supplied by the battery 64 can be adjusted by one or more signals from the data processing and control unit 36. Between the wireless interface There are different types of control channels between bridges. For example, in the forward or downlink direction, there are several types of broadcast channels to provide different types of control messages to mobile stations, including general broadcast channels (BCH), and a call channel (PCH). ) And a forward access channel (FACH). In the reverse or on-chain direction, when you want to access to implement location records, paging start, call response and other types of access operations, ^ A m _) to Achieved. ㈣-Dynamic platform use-Random access channel As mentioned above, UMTS 10 can be divided into multiple regions, as illustrated in Figure 4. 'Each region contains multiple cells. Each cell is a geographic region. The wireless range provided by the wireless base station device at the base station location.

Page 15 457821 V. Description of the invention (9) Base stations are responsible for one or more cells. The special area illustrated in FIG. 4 includes a position area (LA (1) -LA (3)) 32 and a UTRAN recording area (111 ^ (1) -〇1? 4 (3)) 34 which are shown by cross hatching. When the mobile station moves to a new location area or recording area, the mobile station updates the network based on its current location or recording area. LA refers to the calling area related to the core network. URA is the calling area related to UTRAN. When the mobile station is powered on, but is idle, ’LA is more suitable. If a mobile phone has established a packet data link, but no data is being transmitted or received, ϋ R A is more suitable. Both LA and UR A are just non-limiting examples of calling areas. Thereafter, the mobile station may move freely between cells belonging to the same location area or recording area; and these cells do not have to perform a recording update procedure. Therefore, assuming that the data is transmitted from the network to the mobile station, and the mobile station position is only known at the position or recording area level (C is not as good as the cell level), then the call message can be broadcast in all cells belonging to the position / recording area. . The location / recording area is the area where the mobile station recently updated its recording area. 'Note that the location area 32 and the UTRAN recording area 34 include cells coupled to more than one base station. As mentioned earlier, when the call is made from the core network; the call is requested to RNC 26. Usually the RNC will identify the location or recording area where the called mobile phone is now identified; for example, the most recent record. The call demand is then distributed to all cells in the call area. Fig. 4 shows that two cells that store the $ domain LAU) and the UTRAN recording area URAU) at the same time are in an overload state and cannot accept additional call demands. Therefore, the creator of the present invention believes that if additional call resources cannot be allocated ’to support those overloaded cells

Page 16 V. Description of the invention (10)-2 In addition: “Hoohoo” is useful for sending call messages to those overloaded vesicles. Subsequent attempts to respond to the call by the mobile phone and the-' rejection all contribute to record / overload issues. Whereas, according to: J: the call demand is only transmitted to those in the call area in the normal state as shown in the figure ". For example, the call request transmitted to the mobile phone recorded in LAU) can only be sent to the fine bubbles 1, 2, 3, and 6, and transmitted by the cells 1, 2, 3, and 6. According to a first embodiment of the present invention, FIG. 5 outlines a g-messaging routine (b lock 70). Initially, the 'mobile station' can pull messages; the mobile station is located in a cell that includes a specific location area, and usually, although not necessarily, the area contains more than one cell (box 72). Before or after receiving this information (block 74), a determination can be made regarding the current approval status of each cell in the area. From the cell's ability to divide 2 new resources into a pager, the recognition status is based on the degree of blockage of a specific cell as shown in Figure 2. In addition to new paging, there may be—existing paging 'beer; when the paging requires additional resources, it is continuing, for example, wireless bandwidth resources linked to existing video links that are lightly connected. However, the recognition status can also be based on any type of condition or standard used to control the status of the new paging approval in the cell ^ new source configuration. Then, the message (or the information itself) related to the i-Λ received by the mobile station will be transmitted to one or more cells that are now in a good state of approval (block 7 6). The message can be any kind of message, but it does not include unlimited call message, measurement related message, approval control message, broadcast parameter message, short material message, etc. Conversely, 'does not send such a message to any cell that is currently in a bad state of approval (block 76).

Page 17 j 457821 V. Description of the invention (11) '" ~' 'The present invention is applicable to any type of information, and is applicable to any type of any situation. Taking the call message transmitted to a cell as a point of view, for the convenience of description, the following exemplary embodiments of the present invention will be described. The approval status of the cell is determined by the degree of blockage of those cells. In the exemplary embodiment of the present invention, the memory 50 in the RNC 26 stores a register for each calling area in the mobile communication network. Of course, this roster structure can be stored on some other control terminals in the network, such as base stations. Figure 6 shows an example roster data structure. The two demonstration rosters display the recording areas LA (1) and LA (2); each area contains six cells, each numbered 16 and the mother cell registration in the roster may be the identifier and recognition status indicator of the relevant base station. For example, if the approval status is good, the flag can be set to " 1. On the other hand, if the status is not good, it is " 〇 ". Other more indication plans for the status of accreditation are also used. As indicated in the example roster, the location area LA (0 contains four cells (1-4) coupled to the base station BS (1) and five of the two cells (5_6) coupled to the base station BS2 (1 5), and there are four cells (6, 1, 2, and 3) in 111 ^ (2). The cell (6) of UR A (2) overlaps with the one cell of la (1). Jj RA (3) The three cells (4, 5 and 6) are also contained in position LA (2). Now only cells 4 and 5 in position one area LA (1) are overloaded. And URA registration is optional. According to the use, as shown in the figure The non-limiting specific embodiment of the invention described in the roster architecture described in 6 refers to-Example Selective Calling Routine (block 80) /. For a parent includes a cell registration and an approval status indicator (block 82 ), A book was established in the location area. The rest of the optional registration shows the current base station related to maternal solid cells, and the UTRAN recording area (M). then

Page 18 5. Description of the invention (12) The degree of blockage of each cell can be determined. An appropriate recognition status indicator, such as a flag bit, corresponding to the determined level of blockage may be stored in the roster (block 84). For example, ‘by comparing the measured signal-to-noise ratio with other blocking-type variables’, you can determine the degree of blocking. Pin = call to a mobile station and send the call to rnc (party 86). The RNC processing circuit 52 may determine where the mobile station person is located or recorded in the C block 8 8). This process is to use the memory memory 50 in the name corresponding to the determined location area, especially in the location area (if any), to recognize the state $ in 'to determine and select the cell in this information (box 90). Then send this good call to receive a selected cell (block 9 2). Then the call message corresponding to this process reaches the current blocking degree of each cell within a few, and the recognition status of the corresponding location area in each location area is detected again in order. When at the position of the new memory 90 (block 94), the call message is transmitted, and the 'field cell level' known action is blocked, that is, no cell of call # ^ is transmitted. If cells _ 1 alum. In an alternative example, 'memory 50 & *) corpse / f use & includes a roster structure that recognizes fine fetuses & status may be only good cells are not increased or secret L, ° In other words 'When approved cells will be removed from the roster. In this case, W can be in a bad state as shown in the example selective call routine of FIG. 8 (I'll now refer to the A block 1 0 0 of 钿 for each location area (block 1 102)). At the same time, a pin's roster is created. For each cell in the cell, the KNC processing circuit 52 may have a critical point for a location area (block 104). If the threshold is exceeded, if the degree of obstruction is exceeded. Remove the cell from the roster (block 1 0 6) "point" RNC processing circuit 5 2 will. If the critical point is not exceeded,

457821 5. Description of the invention (13) The RNC processing circuit 52 will add the cell (box 108) to the roster. When the RNC (block Π 0) detects a call to a mobile station, it determines where the mobile station is currently located or recorded in (block 1 12). Next, the processing circuit 52 checks the relative position area in the memory 50 and transmits only the call message to the cells of the cell list (block 1 1 4) currently included in the area. Therefore, as shown in Figure 7, the processing circuit 52 then determines the degree of blockage of each cell and updates the cell list for each location area (block 116). The invention provides many benefits. First, it can reduce the amount of control signals in a wireless network because messages that are not useful or do not perform well under current conditions are sent. This reduces the data processing and signal space signals of the wireless network itself. At the same time, the data processing and signals between the wireless base station and the mobile station on the wireless interface can also be reduced. For example, if a mobile station currently located in a blocked cell is called by an associated base station on a wireless interface, then the mobile station will naturally respond to a wireless resource request on the wireless interface to support paging corresponding to the call. The base station must then send a message on another wireless interface to the mobile station that rejected the request; because the cell is now overloaded. By not passing the call from the wireless network to the blocked cell to the first place, in the downlink direction, the interference level of the cell can be reduced or at least not increased. In addition, because the mobile station does not respond to the call, the degree of interference will be reduced in the uplink direction. Furthermore, at least an attempt was made to expand the mobile station in non-blocking cells within the calling area. After explaining the present invention from the perspective of a specific embodiment, those skilled in the art will understand that the present invention is not limited to what is described and illustrated herein.

Page 20 457821 V. Specific examples and specific embodiments of the invention description (丨 4). In addition to the different types, specific embodiments, and improvements that have been shown and described, there are many modifications, changes, and equivalent arrangements that will be used to complete the present invention. Therefore, only the scope of patent application in the appendix herein may limit the present invention.

Page 21

Claims (1)

457821 VI. Scope of patent application 1. A method, in a mobile wireless communication system, each base station can be connected with multiple cells, wherein the mobile wireless communication system includes a plurality of base stations coupled to a controller, and A wireless interface communicates with the mobile station. The method includes: receiving information intended to be transmitted to the mobile station located in one of the plurality of cells; determining an approval status related to each cell; and when the relevant approval status is determined to be good, Then, a message is transmitted to one or more of the plurality of cells, where the information is information related to the intention to be transmitted to the mobile station; the information related to the information intended to be transmitted to the mobile station is not transmitted to the plurality of its approval status One or more of the cells classified as bad. 2. As for the method in the first scope of patent application, the information intended to be transmitted to the mobile station is a control message. 3. For the method of applying for the first item in the patent scope, the recognition status is based on the degree of blockage, so cells with a blockage degree at or below the blockage critical point have a good recognition status; The degree of obstruction of the cells is poor. 4. As for the method in the first scope of the patent application, the first cell is a member of the first group of cells disposed in the first area, and if the approval status of the first cell is determined to be not good, no transmission related to the intended transmission Information for mobile station information. 5. As in the method of applying for the first item of the patent scope, the first cell is a member of the first group of cells allocated to the first area, and only delivers information related to the intended transmission Page 457821 Page 23 457821 6. Scope of patent application Whether to transmit signals to one or more cells in the area. 1 0. The method according to item 9 of the scope of patent application, wherein the recognition indicator is related to the degree of blockage of the relevant cell. 1 1. The method according to item 9 of the scope of patent application, wherein the recognition indicator is related to the validity of communication resources of the relevant cell. 1 2. The method according to item 9 of the scope of patent application, where the relevant area is currently located if it is not currently recorded by the mobile station. 13. The method according to item 12 of the patent application scope, wherein the area includes a plurality of cells related to one base station. 14. The method of claim 12 in the patent application range, wherein the area includes cells related to more than one base station. 1 5. The method according to item 9 of the scope of patent application, wherein the message is a trtj 〇1 6. The method according to item 9 of the scope of patent application, wherein when the value of the recognition indicator of a cell in the area is not good , The message will not be sent to the small monthly package. 1 7. —A method for selectively transmitting a message to a mobile station in a mobile communication network, and the mobile communication network is established in a plurality of regions, and each region includes one or more cells. The method includes: for at least one region To create a cell roster; when the blocking state of the cell is at or below the critical point, add a cell to the cell roster; when the blocking state of the cell exceeds the critical point, remove a cell from the cell roster; and Page 24 457821 6. Scope of patent application Only the signal is transmitted to those cells currently in the register. 18 · The method according to item 17 of the scope of patent application, including: detecting the information to the mobile station; and deciding the area currently related to the mobile station record, wherein the signal is only transmitted to those currently corresponding to the area. Cells in the roster. 19. The method according to item 17 of the scope of patent application, comprising: periodically confirming the occlusion status of each cell in the area to add and remove cells from the roster. 20, as in the method of item 19 of the scope of patent application, in which the blocking state is determined by the critical point. 2 1 · The method according to item 20 of the patent application scope, wherein the threshold is variable. 2 2. The method according to item 19 of the scope of patent application, wherein the message is a call message. 2 3. The method according to item 17 of the scope of patent application, including establishing a pair of cell lists of each region, and for each region of the cell list: when the blocking state of the cell is at or below the critical point, add a cell To the cell roster; and When the blocked state of the cell exceeds a critical point, a cell is removed from each cell register. j 2 4. —A control terminal. In a mobile communication system, each base station can be connected to one or more cells. The mobile wireless communication system includes a plurality of base stations coupled to a controller and has a wireless interface. Connect with mobile platform Page 25 d57821 VI. Patent application scope news, the control terminal includes: a memory storing a register of one or more cells in an area, and an indication of the recognition status of the one or more cells related to each cell ; And a data processing circuit coupled to the memory, which can store an approval status indicator in the memory for each cell in the roster to determine whether the mobile station currently recorded in one or more of the cells needs to transmit a message to Each cell in the roster. 2 5. If the control terminal of item 24 of the patent application scope, the approval status indicator reflects a degree of blockage. 2 6 · If the control terminal of the 24th scope of the patent application, the electronic processing circuit can determine the information to be transmitted to the mobile station currently recorded in one or more of the cells, and transmit the message to each cell in the roster, each of which The cells have a corresponding good endorsement status indicator, and are not transmitted to each cell in the roster with a corresponding poor endorsement status indicator. 2 7 · A control terminal. In the mobile communication system, each area can be connected with one or more cells. The mobile wireless communication system includes multiple areas and multiple base stations coupled to the controller. A wireless interface communicates with the mobile station. The control end includes: a memory storing a cell list of at least one area; and a processing tool coupled to the memory. When the blocking state of the cell is at or below a critical point, an additional one is added. Cell to the cell list, when the blocking state of the cell exceeds the critical point, a cell is removed from the cell list; the processing tool notifies a message to the mobile station to be transmitted to Page 26 4 5 7 8 21 6. Scope of Patent Application Those cells in the current register. 28. If the control terminal of the scope of patent application No. 27 is applied, the processing tool can detect the message 5 intended for the mobile station and determine the area currently recorded by the mobile station, wherein the message is only sent to the current register corresponding to the area. Those cells. 2 9. As the control terminal of the scope of patent application No. 27, the processing tool periodically confirms the degree of blockage of each cell in the area to add and remove cells from the roster. Page 27