CN101557642B - Paging match responding method and mobile station utilizing same - Google Patents
Paging match responding method and mobile station utilizing same Download PDFInfo
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- CN101557642B CN101557642B CN2008100924822A CN200810092482A CN101557642B CN 101557642 B CN101557642 B CN 101557642B CN 2008100924822 A CN2008100924822 A CN 2008100924822A CN 200810092482 A CN200810092482 A CN 200810092482A CN 101557642 B CN101557642 B CN 101557642B
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/16—Communication-related supplementary services, e.g. call-transfer or call-hold
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Abstract
The invention provides a paging match responding method in the colony communication field to prevent a colony mobile station from accessing an actively quitted call in the colony calling process aftera system side transmits a broadcast paging and channel assignment message to a mobile station through a broadcast channel. The method comprises the following steps: A, the system side transmits the broadcast paging and channel assignment message to all mobile stations by the broadcast channel; B, the mobile station parses the broadcast paging and channel assignment message and match parsed information and stored information in the mobile station, if match is unsuccessful, the broadcast paging and channel assignment message are discarded; if the match is successful, step C is performed; and C,whether the call is the one which is actively quitted by the mobile station is detected, if the call is not the one which is actively quitted by the mobile station, the call is accessed, or else, thebroadcast paging and channel assignment message are discarded. The invention also provides the mobile station utilizing the paging match responding method.
Description
Technical field
The present invention relates to the digital aggregated communication system field, particularly a kind of travelling carriage that in digital aggregated communication system is called out, carries out the method for paging match responding and use this method.
Background technology
Digital aggregated communication system is an important branch of mobile communcations system, is a kind of mobile communcations system that is applied to group's dispatch control communication.Be mainly used in professional field of mobile communication, as all trades and professions such as government department, army, police service, railway, water conservancy, civil aviaton and steel logisticses.
Digital aggregated communication system network configuration (as Fig. 1) mainly comprises cluster mobile station 1, base station sub-system 2, and scheduler subsystem 3, wherein:
Cluster mobile station 1 possesses the mobile station equipment of group service function, is the mutual capital equipment of cluster network and user.
Wherein base station sub-system 2 and scheduler subsystem 3 can be collectively referred to as system side.
The current cluster travelling carriage call out to insert that rising of having comprised exhaled, paging, three process processes of paging match responding.Rising when exhaling, certain member all members in group make a call.Initiated exhale signaling by this group membership this moment, and this travelling carriage of reporting system side need carry out group call.System side travelling carriage in the group on special-purpose paging channel carries out paging afterwards, be after system side receives that rising of travelling carriage exhaled signaling, sent Radio Paging and Channel Assignment message separately to working each travelling carriage of exhaling in the group, all travelling carriages in the group of notifications enter in the group calling.Carry out the paging match responding process afterwards, after promptly other travelling carriages in the group are received system broadcasts paging and Channel Assignment message, carry out Radio Paging and Channel Assignment source codec, and according to Radio Paging and Channel Assignment message with information, carry out relevant treatment, behind the beep-page message that is confirmed to be self, reply the page response signaling.
The present paging and the method for paging match responding are, each called mobile station of system lateral sends a Radio Paging and Channel Assignment message separately, this signaling is carried IMSI (the International Mobile Subscriber Identity of called mobile station, international series number), after receiving, does travelling carriage the IMSI coupling, after the match is successful, reply page response.Owing to be that each travelling carriage inserts separately, when the travelling carriage number was a lot of in the group, the travelling carriage that can cause having inserted waits for too long, is unfavorable for the use of Digital Clustering travelling carriage.
Chinese patent 200710198491.5 has proposed a kind of method and has addressed the above problem, basic design such as Fig. 2 of this method, be the caller travelling carriage finished exhale after, system carries out S10, send Radio Paging and Channel Assignment message at broadcast channel all cluster mobile stations in network, this message is carried GID (the GROUP ID of group, group identifier, be the unique identifier of group), notify all cluster mobile stations to have a certain cluster mobile station to begin to call out, require the travelling carriage in this group to add calling this time.
Cluster mobile station carries out following operation after receiving system broadcasts paging and Channel Assignment message:
S20, Radio Paging and Channel Assignment message are decoded, information and travelling carriage self canned data that parses mated.A more excellent embodiment is the GID that parses wherein.
Describedly seek Radio Paging and Channel Assignment message can comprise following content:
LAC (Location Area Code, lane place coding) layer (this layer is called as " layer two " in " the CDMA2000 air interface technologies standard " of high pass issue): comprised effectiveness (UTILITY) sublayer and sublayer, address (ADDRESS).
Wherein, there is MESSAGE_ID sign bit representation type of message the effectiveness sublayer, and in the present invention, its value is 0x36.
The ADDRESS sublayer comprises NUM_GIDS, GID_ADDR_LENGTH and three parts of GID_ADDR_LIST.
The NUM_GIDS flag bit: show the group number that comprises in this message, this flag bit length is 4 bits.The GID_ADDR_LENGTH flag bit: represent the coded system of each GID of group, length is 1 bit.When its value was 0, the GID of 28 bits of encoded was used in expression; When its value was 1, the GID of 52 bits of encoded was used in expression.GID_ADDR_LIST data structure: the expression GID of group tabulation, when GID_ADDR_LENGTH is 0, the field length of this data structure equals the product (unit is a bit) of NUM_GIDS and 28, and the field length of this flag bit equals the product (unit is a bit) of NUM_GIDS and 52 when GID_ADDR_LENGTH is 1.GID data among the GID_ADDR_LIST are arranged as shown in the table:
| 1、GID_ADDR_1 |
| 2、GID_ADDR_2 |
| 3、GID_ADDR_3 |
| 4、… |
Above-mentioned each line data is represented a GID, and Radio Paging and Channel Assignment message may have a plurality of GID, and the GID with himself storage after travelling carriage parses all GID mates respectively.
In the embodiment that utilizes GID to mate, the cluster mobile station that receives Radio Paging and Channel Assignment message compares the GID that the GID that parses and travelling carriage self store, and detects current whether calling of group under this travelling carriage.As do not match, then abandon this Radio Paging and Channel Assignment message, as the match is successful, then carry out step S60, the subsequent operation of calling out, travelling carriage inserts to be called out.
In the trunking communication technology, travelling carriage can initiatively withdraw from a certain group certain once call out, according to the requirement of trunking communication, after in a single day travelling carriage withdraws from a certain calling of a certain group, then before this time end of calling, travelling carriage can not add this calling once more passively.
200710198491.5 there is following defective in the technical scheme of patent: travelling carriage initiatively withdraw from a certain group certain once call out, when the Radio Paging of receiving this calling once more and Channel Assignment and carry out GID coupling, after the match is successful, in the middle of this travelling carriage has just inserted again and this time called out.This does not meet the requirement of trunking communication.
Summary of the invention
The present invention is intended to solve in the trunked call process, system side sends Radio Paging and Channel Assignment message by broadcast channel to travelling carriage, cluster mobile station may insert this technological deficiency of calling that once initiatively withdrawed from after the match is successful, a kind of method of carrying out paging match responding in digital aggregated communication system is called out has been proposed, described method comprises the steps
A, system side send Radio Paging and Channel Assignment message by broadcast channel to all travelling carriages;
B, travelling carriage are resolved described Radio Paging and Channel Assignment message and the GID that parses and the GID of himself storage are mated, if coupling is unsuccessful, abandon this Radio Paging and Channel Assignment message; If the match is successful, execution in step C then;
Whether C, detection are this time called out is the calling that this travelling carriage once initiatively withdrawed from, if this calling is not the calling that this travelling carriage once initiatively withdrawed from, then inserts and calls out; Otherwise abandon this Radio Paging and Channel Assignment message;
Before the described access of step C is called out, also comprise the steps:
Whether C1, detection travelling carriage if not, then carry out C3 waiting for a certain specific call; Otherwise, carry out C2;
Whether C2, detection are waited for overtime, carry out C3 when overtime;
C3, be travelling carriage at a specific call of waiting for, pick up counting and insert calling this call setting.
Above-mentioned method, described step C may further include following steps:
Travelling carriage detect its storage the group of this time calling out withdraw from the symbol type, if withdraw from symbol for can passive access style, then travelling carriage inserts and calls out; If withdraw from symbol for can not passive access style, the calling sequence of then further judging this group call of the last time whether calling sequence number in this Radio Paging and the Channel Assignment message keeps with travelling carriage is number identical, if it is identical, abandon this Radio Paging and Channel Assignment message, do not insert calling; Otherwise, insert and call out.
Said method is among the described step C2, if wait is super and in the calling access of waiting for, then abandon this Radio Paging and Channel Assignment message.
The present invention also provides a kind of travelling carriage of using said method, comprises memory module, in order to the required GID of storage paging match responding; The broadcast reception module is in order to receive Radio Paging and Channel Assignment message from broadcast channel; Parsing module is in order to parse the GID in described Radio Paging and the Channel Assignment message; Matching module mates in order to the GID that stores in GID that parsing module is parsed and the memory module, and abandons Radio Paging and Channel Assignment message in the unsuccessful situation of the coupling processing module that sends a notice, it is characterized in that,
Calling sequence number and group that described memory module has also been stored last calling withdraw from symbol; Information that described parsing module parses has comprised the calling sequence called out number; Described matching module also is used at the GID of GID that parses and storage after the match is successful, detect the state that withdraws from symbol of group, number mate at the described calling sequence that withdraws from the calling that calling sequence that symbol once calls out on described memory module storage for can not passive access style time the number and described parsing module parse, abandon this Radio Paging and Channel Assignment message in the situation that the match is successful the processing module that sends a notice, and under the unsuccessful situation of coupling, notification handler module inserts calls out;
Also comprise a timer, described memory module has also been stored to call out and has been inserted mentioned preemption flags, the calling access style sign of the specific call of current wait, and the ID of the group flag bit that carries out this specific call, described parsing module also is used for parsing the call type of Radio Paging and Channel Assignment message, described matching module also is used under the unsuccessful situation of described coupling, whether detect described calling access mentioned preemption flags is set up, if be not set up, this flag bit then is set, the notice timer picks up counting and the calling access style sign of specific call that the type and the ID of group of this calling is stored in current wait respectively, and carry out in the ID of the group flag bit of this specific call, notification handler module inserts calling; If be set up, whether then detect timer overtime, if timer expiry, then the setting that inserts mentioned preemption flags is called out in cancellation, the calling access style sign of the specific call that call type that parses according to parsing module and the GID of group are provided with current wait and the ID of the group flag bit that carries out this specific call are reset to call out and are inserted mentioned preemption flags and notify timer to restart timing and notification handler module and insert and call out.
The present invention makes travelling carriage after receiving beep-page message and the match is successful, detect according to its current state whether needs insert certain calling, avoided the situation of its calling of once initiatively withdrawing from of the passive again adding of travelling carriage, it is short that travelling carriage simultaneously of the present invention inserts the stand-by period, is convenient to the use of Digital Clustering travelling carriage.
Description of drawings
Fig. 1 is existing digital clustering communication system structure chart;
Fig. 2 sends the method flow diagram that Radio Paging and Channel Assignment message and travelling carriage are carried out paging match responding for the existing systems side by broadcast channel;
Fig. 3 is the method flow diagram of first embodiment of the invention;
Fig. 4 is the method flow diagram of second embodiment of the invention;
Fig. 5 is the block diagram of travelling carriage of the present invention;
Fig. 6 is the block diagram of travelling carriage one embodiment of the present invention.
Embodiment
The present invention adopt system by broadcast channel to Mobile Origination Radio Paging and Channel Assignment message, travelling carriage is received after Radio Paging and the Channel Assignment message with related data (generally the being GID) method of mating of himself storage and is finished the group call of Digital Clustering.As Fig. 3, at GID after the match is successful, can carry out after the following steps execution in step S60 more earlier.In this present invention, step S10 also will parse this calling sequence number except parsing GID.This calling sequence number obtains by resolving floor 3 in Radio Paging and the Channel Assignment message (high pass issue " CDMA2000 air interface technologies standard " this floor is had specific definition).
On three kinds on layer, comprised the RECORD flag bit, the information that this flag bit comprises is as shown in the table:
| Field name | Length (bit) |
| Record_TYPE | 8 |
| Record_LEN | 8 |
| Type-specific?fields | 8×RECORD_LEN |
When Record_TYPE is 7E, comprise following information in the layer three:
| Field name | Length (bit) |
| CPV | 10 |
| CALL_SEQ_NUM | 4 |
| |
1 |
| |
1 |
Wherein CALL_SEQ_NUM is this calling sequence number.
S30: detect and whether initiatively withdrawed from this time calling out of this group.This step can realize by following operation:
Detect the symbol that withdraws from of this group on the cluster mobile station, purpose is to detect certain calling whether this travelling carriage once initiatively withdrawed from this group.Group can be withdrawed from symbol and be made as 1 representing that this travelling carriage once initiatively withdrawed from certain calling of this group, group withdraws from symbol for can not passive access style; Withdrawing from symbol as group is 0, represents that this travelling carriage had not initiatively withdrawed from certain calling of this group, and it is can passive access style that group withdraws from symbol.As the symbol that withdraws from that detects this group is 0 to carry out the operation of S60, otherwise carries out S40.
S40: the Radio Paging that system is issued compares with the sequence number of the last group call that group call sequence number in the Channel Assignment message and travelling carriage keep, whether detect current calling is the calling of withdrawing from last time, current calling sequence number and the calling sequence that stores are number identical, then expression calling this time is the calling of withdrawing from last time, the calling of once withdrawing from does not finish, and directly abandons this Radio Paging and Channel Assignment message; Different then expression is once new calling, carry out S60, insert and call out.
(as Fig. 4) in a further advantageous embodiment in order to handle following situation, increased the detection called mobile station and whether be in this step in other group calls or the Call Waiting process: travelling carriage can only be handled a certain specific calling this moment.In this embodiment, if it is 0 that group withdraws from symbol, then carries out the operation of S50, otherwise carry out S40 among the step S30; Among the step S40, if calling sequence number does not match, then this time to call out be once new calling in expression, carries out S50.
S50: detect called mobile station and whether waiting for a certain specific calling.These step concrete operations are as follows: when called mobile station is received above-mentioned paging and after the match is successful, cluster mobile station will detect current its calling access mentioned preemption flags (PTT_ACCESS_PREEMPT_FLAG) and whether be set up (if 1, then expression is set up, travelling carriage is being waited for a certain specific calling, if 0, expression is not set up, and travelling carriage is not waited for a certain specific calling).
This value is 1 o'clock, the calling access style (PTT_ACCESS_PREEMPT_TYPE) (also can not detect the type) of the specific call of the current wait of detection cluster mobile station and the ID of group (PTT_ACCESS_PREEMPT_GID) that carries out this specific call, and detection of call inserts the timer of seizing, when the current calling of cluster mobile station inserts the timer of seizing (T_PTT_ACCESS_PREEMPT) overtime (this timer inserts in calling and picks up counting when mentioned preemption flags is set to 1), it is 0 that PTT_ACCESS_PREEMPT_FLAG will be set, and represents that this travelling carriage no longer waits for this specific call.If not overtime, and this specific call inserts this travelling carriage, then abandons the Radio Paging and the Channel Assignment message of this time calling out.The current calling of cluster mobile station inserts the type of seizing and comprises: rise and exhale IMSI, rise exhale GID, secret to exhale to toll breakdown, the enhancing group is tolled breakdown, traditional group is tolled breakdown, received BCAM (Broadcast Channel Assignment Message, broadcast singal assignment message), the IMSI paging is mated.
This value is 0 o'clock, and according to this call setting PTT_ACCESS_PREEMPT_TYPE and PTT_ACCESS_PREEMPT_GID, and PTT_ACCESS_PREEMPT_FLAG is set is 1, and timer picks up counting.Enter step S60 afterwards.
S60, the work of travelling carriage page match is finished, and carries out subsequent operation.As send page-response message or access group calling etc.
The present invention also provides a kind of travelling carriage that carries out paging match responding.As shown in Figure 5, in first embodiment of travelling carriage of the present invention, comprise memory module, in order to the required GID of storage paging match responding; The broadcast reception module is in order to receive Radio Paging and Channel Assignment message from broadcast channel; Parsing module is in order to parse the GID in described Radio Paging and the Channel Assignment message; Matching module, mate in order to the GID that stores in GID that parsing module is parsed and the memory module, if coupling is unsuccessful, then notification handler module abandons this Radio Paging and Channel Assignment message, calling sequence number and group that described memory module has also been stored last calling withdraw from symbol, information that described parsing module parses has comprised the calling sequence called out number, matching module also is used at the GID of GID that parses and storage after the match is successful, detect the state that withdraws from symbol of group, if withdraw from symbol for can not passive access style, then the calling sequence of the calling that parses of the calling sequence that the last time of memory module storage is called out number and parsing module number mates, if the match is successful, then notification handler module abandons this Radio Paging and Channel Assignment message; Under the unsuccessful situation of coupling, notification handler module inserts calls out.
Fig. 6 shows second embodiment of travelling carriage of the present invention, the travelling carriage of this embodiment also has a timer, can also store in the memory module to call out and insert mentioned preemption flags (PTT_ACCESS_PREEMPT_FLAG), the calling access style sign (PTT_ACCESS_PREEMPT_TYPE) of the specific call of current wait, carry out the ID of group (PTT_ACCESS_PREEMPT_GID) of this specific call, the present embodiment and first embodiment are basic identical, difference is, in the present embodiment, the matching module notification handler module inserts before the calling, also need detect PTT_ACCESS_PREEMPT_TYPE and PTT_ACCESS_PREEMPT_GID, and whether detection PTT_ACCESS_PREEMPT_FLAG is set up (if 1, then expression is set up), if PTT_ACCESS_PREEMPT_FLAG is set up, whether matching module detects timer overtime, if it is overtime, it is 0 that PTT_ACCESS_PREEMPT_FLAG is set, and the expression travelling carriage is no longer waited for this specific call.If not overtime, and this specific call inserts this travelling carriage, and then notification handler module abandons the Radio Paging and the Channel Assignment message of this time calling out.The current calling of cluster mobile station inserts the type of seizing and comprises: rise and exhale IMSI, rise exhale GID, secret to exhale to toll breakdown, the enhancing group is tolled breakdown, traditional group is tolled breakdown, received BCAM, the IMSI paging is mated.If PTT_ACCESS_PREEMPT_FLAG is 0, then according to this call setting PTT_ACCESS_PREEMPT_TYPE and PTT_ACCESS_PREEMPT_GID, it is 1 that PTT_ACCESS_PREEMPT_FLAG is set, and the notice timer picks up counting.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with the people of this technology in the disclosed technical scope of the present invention; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (4)
1. the method for a paging match responding comprises the steps,
A, system side send Radio Paging and Channel Assignment message by broadcast channel to all travelling carriages;
B, travelling carriage are resolved described Radio Paging and Channel Assignment message and the GID that parses and the group identifier GID of himself storage are mated, if coupling is unsuccessful, abandon this Radio Paging and Channel Assignment message; If the match is successful, execution in step C then;
Whether C, detection are this time called out is the calling that this travelling carriage once initiatively withdrawed from, if this calling is not the calling that this travelling carriage once initiatively withdrawed from, then inserts and calls out; Otherwise abandon this Radio Paging and Channel Assignment message;
Before the described access of step C is called out, also comprise the steps:
Whether C1, detection travelling carriage if not, then carry out C3 waiting for a certain specific call; Otherwise, carry out C2;
Whether C2, detection are waited for overtime, carry out C3 when overtime;
C3, be travelling carriage at a specific call of waiting for, pick up counting and insert calling this call setting.
2. the method for claim 1 is characterized in that, described step C further comprises the steps:
Travelling carriage detect its storage the group of this time calling out withdraw from the symbol type, if withdraw from symbol for can passive access style, then travelling carriage inserts and calls out; If withdraw from symbol for can not passive access style, the calling sequence of then further judging this group call of the last time whether calling sequence number in this Radio Paging and the Channel Assignment message keeps with travelling carriage is number identical, if it is identical, abandon this Radio Paging and Channel Assignment message, do not insert calling; Otherwise, insert and call out.
3. method as claimed in claim 1 or 2 is characterized in that, among the described step C2, inserts if wait for calling not overtime and that wait for, then abandons this Radio Paging and Channel Assignment message.
4. an application rights requires the travelling carriage of 1 described method, comprises memory module, in order to the required GID of storage paging match responding; The broadcast reception module is in order to receive Radio Paging and Channel Assignment message from broadcast channel; Parsing module is in order to parse the GID in described Radio Paging and the Channel Assignment message; Matching module mates in order to the GID that stores in GID that parsing module is parsed and the memory module, and abandons this Radio Paging and Channel Assignment message in the unsuccessful situation of the coupling processing module that sends a notice, it is characterized in that,
Calling sequence number and group that described memory module has also been stored last calling withdraw from symbol; Information that described parsing module parses has comprised the calling sequence called out number; Described matching module also is used at the GID of GID that parses and storage after the match is successful, detect the state that withdraws from symbol of group, number mate at the described calling sequence that withdraws from the calling that calling sequence that symbol once calls out on described memory module storage for can not passive access style time the number and described parsing module parse, abandon this Radio Paging and Channel Assignment message in the situation that the match is successful the processing module that sends a notice, and under the unsuccessful situation of coupling, notification handler module inserts calls out;
Also comprise a timer, described memory module has also been stored to call out and has been inserted mentioned preemption flags, the calling access style sign of the specific call of current wait, and the ID of the group flag bit that carries out this specific call, described parsing module also is used for parsing the call type of Radio Paging and Channel Assignment message, described matching module also is used under the unsuccessful situation of described coupling, whether detect described calling access mentioned preemption flags is set up, if be not set up, this flag bit then is set, the notice timer picks up counting and the calling access style sign of specific call that the type and the ID of group of this calling is stored in current wait respectively, and carry out in the ID of the group flag bit of this specific call, notification handler module inserts calling; If be set up, whether then detect timer overtime, if timer expiry, then the setting that inserts mentioned preemption flags is called out in cancellation, the calling access style sign of the specific call that call type that parses according to parsing module and the GID of group are provided with current wait and the ID of the group flag bit that carries out this specific call are reset to call out and are inserted mentioned preemption flags and notify timer to restart timing and notification handler module and insert and call out.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100924822A CN101557642B (en) | 2008-04-09 | 2008-04-09 | Paging match responding method and mobile station utilizing same |
| PCT/CN2008/002138 WO2009124430A1 (en) | 2008-04-09 | 2008-12-30 | Method of paging matching responding and mobile station applying it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100924822A CN101557642B (en) | 2008-04-09 | 2008-04-09 | Paging match responding method and mobile station utilizing same |
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| Publication Number | Publication Date |
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| CN101557642A CN101557642A (en) | 2009-10-14 |
| CN101557642B true CN101557642B (en) | 2011-11-30 |
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| CN2008100924822A Expired - Fee Related CN101557642B (en) | 2008-04-09 | 2008-04-09 | Paging match responding method and mobile station utilizing same |
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| Country | Link |
|---|---|
| CN (1) | CN101557642B (en) |
| WO (1) | WO2009124430A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014113956A1 (en) * | 2013-01-24 | 2014-07-31 | 华为技术有限公司 | Message transmission method and device |
| CN104579703B (en) * | 2013-10-12 | 2018-11-02 | 普天信息技术有限公司 | It is a kind of that cluster user is made to exit the method and user terminal that group is exhaled |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6745031B2 (en) * | 1998-04-17 | 2004-06-01 | Samsung Electronics Co., Ltd. | Reconnection of dropped call in mobile communication system |
| CN101141705A (en) * | 2006-09-05 | 2008-03-12 | 中兴通讯股份有限公司 | Method for cluster terminal to exit group calling actively |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007028274A1 (en) * | 2005-09-06 | 2007-03-15 | Zte Corporation | Method of quickly establishing a call in cdma trunked communication system |
| EP1954064B1 (en) * | 2005-11-25 | 2010-09-08 | ZTE Corporation | Control method for re-accessing a trunking system after a terminal has exited a group call |
| CN101150787A (en) * | 2007-10-24 | 2008-03-26 | 中兴通讯股份有限公司 | An active delay access method for cluster communication system |
-
2008
- 2008-04-09 CN CN2008100924822A patent/CN101557642B/en not_active Expired - Fee Related
- 2008-12-30 WO PCT/CN2008/002138 patent/WO2009124430A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6745031B2 (en) * | 1998-04-17 | 2004-06-01 | Samsung Electronics Co., Ltd. | Reconnection of dropped call in mobile communication system |
| CN101141705A (en) * | 2006-09-05 | 2008-03-12 | 中兴通讯股份有限公司 | Method for cluster terminal to exit group calling actively |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009124430A1 (en) | 2009-10-15 |
| CN101557642A (en) | 2009-10-14 |
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