CN101562785A - Method for reporting pilot frequency in traditional group calling and method for configuring reporting mechanism - Google Patents
Method for reporting pilot frequency in traditional group calling and method for configuring reporting mechanism Download PDFInfo
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- CN101562785A CN101562785A CNA2008100937019A CN200810093701A CN101562785A CN 101562785 A CN101562785 A CN 101562785A CN A2008100937019 A CNA2008100937019 A CN A2008100937019A CN 200810093701 A CN200810093701 A CN 200810093701A CN 101562785 A CN101562785 A CN 101562785A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention discloses a method for configuring a pilot frequency information reporting mechanism of a digital trunking terminal in a traditional group calling, comprising the following steps: after receiving the configuration information of the system side, the trunking terminal in which the configuration information is stored analyses the information, at least obtains system pilot frequency, a reporting model and adjacent area list information in the configuration information, and synchronizes the configuration information stored in the trunking terminal according to the analyzed information. The invention also discloses a method for reporting the pilot frequency information in the group calling digital trunking terminal, which comprises the following steps on the basis of the method: the trunking terminal detects the energy of all pilot frequency values in an adjacent area list in the stored configuration information; the pilot frequency value in the current active set is used as reporting pilot frequency; and when the trunking terminal is in a business state, the information of the reporting pilot frequency is sealed in the reporting information of a PTT user state to be automatically reported during reporting according to the reporting model of the pilot frequency information in the configuration information. The invention realizes the automatic reporting of the pilot frequency information and is convenient for the terminal to switch cells.
Description
Technical field
The present invention relates to that pilot tone reports technology in the digital packet terminal, relate in particular to a kind of digital packet terminal pilot tone report method and report the collocation method of mechanism in conventional group calling.
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.
The digital aggregated communication system network mainly comprises colony terminal, base station sub-system and scheduler subsystem, and wherein: colony terminal is the mobile station equipment that possesses the group service function, is the mutual capital equipment of cluster network and user.Base station sub-system is the base station system that possesses the group service function, finishes the access function of colony terminal, is the capital equipment of connecting terminal and scheduler subsystem.Scheduler subsystem is finished control and the management function to termination set group business in the service area, is the control centre of group service.Base station sub-system and scheduler subsystem are collectively referred to as system side.
In digital aggregated communication system; can run into the situation that system is switched; it is the user moves to another base station from the control range of a base station through regular meeting control range; this moment colony terminal also need with hand over to being connected of last base station and being connected of base station shifting; the hand-over of this connection is called as switching.
In current conversation model, after terminal entered business state, terminal can be monopolized the signaling transmission that a channel is used to carry out system and terminal.Utilize this to monopolize channel, each terminal that is in business state of system lateral sends separately switches relevant signaling, comprise the pilot signal measurement request instruction, the simulation switch indicating information, the neighbor lists updating message, extended handoff direction messages, the candidate frequency search (CFS) request message, the candidate frequency search (CFS) control messages, the neighbor lists updating message, supplemental channel assignment message, general switch indicating information, periodic pilot signal measurement request instruction, overall switch indicating information, extended supplemental channel assignment message, forward complement channel distributes mini message, reverse complemental channel distributes mini message etc., system comprises above-mentioned signaling by monopolizing channel to the terminal transmission, inform the system mode that colony terminal is current and require colony terminal to report its current state, think that colony terminal switches to prepare.Colony terminal can automatic gathering system side required information, as the information such as magnitude relationship of the pilot energy of the pilot energy of adjacent base station and these pilot energy and current system.After colony terminal receives above-mentioned signaling, collect corresponding information and utilize dedicated channel to report to system side.
In the traditional group communication process, in order to save resource, colony terminal can not be monopolized a channel all the time, but with other colony terminal shared channels of this group calling, and system side also no longer sends signaling to each terminal, but all terminals send identical signaling simultaneously in group.In this case, can't be according to prior art, being sent control signaling separately by a certain terminal of system lateral requires it to report the information of collecting.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of digital packet terminal pilot frequency information reporting method and report the collocation method of mechanism in conventional group calling, realizes reporting of end side pilot frequency information neatly.
For achieving the above object, technical scheme of the present invention is achieved in that
The collocation method of a kind of digital packet terminal pilot frequency information reporting mechanism in conventional group calling comprises:
The colony terminal that stores configuration information is resolved this information after receiving the configuration information of system side, at least obtain system pilot in the described configuration information, pilot frequency information reporting pattern and adjacent area list information, according to the described colony terminal stored configuration information of the information synchronization that parses.
Preferably, described system side is notified described colony terminal by channel assignment message with described configuration information when described colony terminal is in idle condition or access state, colony terminal also receives the neighbor cell list updating message from system side, and, store in the adjacent area list information according to the pilot frequency information that neighbor cell list updating message collection needs report.
Preferably, described system side is notified described colony terminal by PTT system parameters and Neighboring Cell List message with described configuration information when described colony terminal is in service condition.
Preferably, described pilot frequency information reporting pattern comprises: do not report, report immediately, periodically report and report cycle, report immediately and periodically report and report cycle.
A kind of digital packet terminal is the pilot frequency information reporting method in conventional group calling, comprising:
The colony terminal that stores configuration information is resolved this information after receiving the configuration information of system side, at least obtain system pilot in the described configuration information, pilot frequency information reporting pattern and adjacent area list information, according to the described colony terminal stored configuration information of the information synchronization that parses;
Described colony terminal detects the energy of each pilot value in the Neighboring Cell List in institute's stored configuration information, with the pilot value in the current Active Set as reporting pilot tone; And
When described colony terminal is in service condition, according to the pilot frequency information reporting pattern in the configuration information, on give the correct time the described information that reports pilot tone encapsulated into and report automatically in the PTT User Status reporting message.
Preferably, described configuration information is notified described colony terminal by channel assignment message when described colony terminal is in idle condition or access state.
Preferably, described configuration information passes through PTT system parameters and the described colony terminal of Neighboring Cell List message informing when described colony terminal is in service condition.
Preferably, described pilot frequency information reporting pattern comprises: do not report, report immediately, periodically report and report cycle, report immediately and periodically report and report cycle.
Preferably, this method also comprises:
When definite described pilot frequency information reporting pattern reports for periodicity, when described colony terminal received the configuration information of system side before pilot frequency information reporting, described colony terminal is reported the mechanism configuration; Otherwise the PTT User Status reporting message that will carry pilot frequency information in each cycle reports.
Preferably, the deployment position sign that also comprises described colony terminal supplement channel place in the described PTT User Status reporting message.
For the colony terminal that is about to carry out the traditional group call business, collocation method of the present invention utilizes channel assignment message to carry and reports machine-processed configuration information, and for the colony terminal that is in call state, utilize PTT system parameters and Neighboring Cell List message to carry to report the configuration information of mechanism, thereby finish configuration the pilot frequency information reporting mechanism of colony terminal.The aforementioned arrangements method of utilizing report method of the present invention is disposed reports mechanism, utilize PTT User Status reporting message to report relevant pilot frequency information, like this, under the situation that does not influence the colony terminal regular traffic, realized colony terminal the reporting automatically of pilot frequency information in conventional group calling, the pilot frequency information that makes things convenient for system to report according to colony terminal carries out the sub-district and switches.
Description of drawings
Fig. 1 is the flow chart of digital packet terminal of the present invention collocation method of pilot frequency information reporting mechanism in conventional group calling;
Fig. 2 is the flow chart of digital packet terminal of the present invention pilot frequency information reporting method in conventional group calling.
Embodiment
Describe the present invention below in conjunction with accompanying drawing.
Fig. 1 is the flow chart of digital packet terminal of the present invention collocation method of pilot frequency information reporting mechanism in conventional group calling, and as shown in Figure 1, collocation method of the present invention may further comprise the steps:
Step 101: system side is encapsulated as configuration messages with the configuration parameter of colony terminal, sends to colony terminal by eating dishes without rice or wine.
Here, configuration parameter is encapsulated as configuration messages, at different SOT state of termination, the mode difference of encapsulation, the present invention has two kinds of packaged types, a kind of is colony terminal when being in idle condition or access state, and configuration parameter is encapsulated as broadcast channel assigned message (BCAM, Broadcast Channel AssignmentMessage); Another kind is that colony terminal is when being in service condition, configuration parameter is encapsulated as PTT system parameters and Neighboring Cell List message (PTT System Parameter and Neighbor Channel AssignmentMessage), below introduces the concrete packaged type of configuration parameter respectively in detail.
The form of broadcast channel assigned message is as shown in Table 1:
| Field name | (length bit) |
| …… | …… |
| IS_ACTIVE | 1 |
| PILOT_PN | 9 |
| …… | …… |
| STATUS_REPORT_MODE | 0or 2 |
| STATUS_REPORT_PERIOD | 0or 4 |
| …… | …… |
Table one
Wherein, IS_ACTIVE represents whether this message is with effective resource information.IS_ACTIVE flag bit in the message body is 1 o'clock, the length of STATUS_REPORT_MODE in this message (state reports pattern) just is 2 bits, otherwise it is 0 bit (promptly not comprising this field), when wherein STATUS_REPORT_MODE length was 2 bits, its value and implication were: 00 expression does not report; 01 expression reports immediately; 10 indication cycle's property report; 11 expressions report immediately and periodically report.Those skilled in the art are to be understood that, when the STATUS_REPORT_MODE value is 10 or 11, this message also can comprise STATUS_REPORT_PERIOD (state report cycle) field (this field length is 4 bits), otherwise does not comprise this field (field length is 0 bit).
If the value of STATUS_REPORT_PERIOD is x, then the value of Shi Ji state report cycle is the long-pending of 2 x power and backward signaling sending time slots.Determine the backward signaling sending time slots length of this terminal to report state in the next cycle by international mobile subscriber identity (IMSI, International Mobile SubscriberIdentity) and nonce.Backward signaling sending time slots length be defined as prior art, do not give unnecessary details at this.
The PILOT_PN field is the pilot value of system cell, is unique sign of sub-district.
PTT system parameters and Neighboring Cell List message are system data piece (SDB, System Data Block) form, the group system side defines proprietary message by the DATABLOCK (data segment) that uses SDB, its message format adopts type lengths values (TLV, Type Length Value) structure, as shown in Table 2:
| MSG_TYPE (type of message) | Length (length of message text) | MSG_TXT (message text) |
| 8 bits | 8 bits | (8 * Length) bits |
Table two
Wherein, MSG_TYPE is used to distinguish type of message, takies 8 bits, is the message header of SDB message, and in the present invention, MSG_TYPE is 0x14; Length represents the length of MSG_TXT, is unit with byte (8 bits), and its length is subjected to the restriction of maximum length of the short message of access channel and paging channel, but in Traffic Channel, its length is unrestricted.MSG_TXT is a message text, the information that comprises as shown in Table 3:
| Field name | Length (bit) |
| …… | …… |
| DLA_ID | 16 |
| …… | …… |
| STATUS_REPORT_MODE | 2 |
| STATUS_REPORT_PERIOD | 0 or 4 |
| …… | …… |
| Neighbor_Cell_Num | 5 |
| …… | …… |
| PIL0T_PN | 9 |
Table three
Wherein, identical in the value of STATUS_REPORT_MODE, STATUS_REPORT_PERIOD and PILOT_PN and implication and the table one, repeat no more here.The Neighbor_Cell_Num field is represented the adjacent sub-district number that this message comprises, and each adjacent sub-district is corresponding to a pilot value PN; DLA_ID is the sign in the deployment position district (DLA, Dispatch Location Area) of current area.
Need to prove,, finish configuration by repeatedly sending corresponding message when system side sends configuration information each colony terminal relevant parameter because what face is the colony terminal that carries out conventional group calling.
Step 102: colony terminal is resolved this information after receiving the configuration information of system side, at least obtain system pilot in the described configuration information, pilot frequency information reporting pattern and adjacent area list information, according to the described colony terminal stored configuration information of the information synchronization that parses.
After colony terminal receives the BCAM of system side by eating dishes without rice or wine, parsing obtains STATUS_REPORT_MODE, configuration parameter such as STATUS_REPORT_PERIOD and PILOT_PN, judge the STATUS_REPORT_MODE that is resolved, STATUS_REPORT_PERIOD and PILOT_PN and the prior state of storing of this colony terminal report pattern, whether state report cycle and system pilot be identical, if it is identical all, then abandon these configuration parameters, if it is not and identical entirely, then the parameter of new parsing that will be different with the institute storage configuration parameter is replaced raw parameter, as the new configuration parameter of described colony terminal.System side by this step finish to colony terminal report mechanism configuration.
When Idle state or access attitude, colony terminal also receives the neighbor cell list updating message from system side, and collects the pilot frequency information that needs report according to the neighbor cell list updating message, stores in the adjacent area list information.
Colony terminal is under service condition, receive the PTT system parameters and the Neighboring Cell List message of system side by eating dishes without rice or wine, parsing obtains STATUS_REPORT_MODE, STATUS_REPORT_PERIOD, (Neighbor_Cell_Num is an adjacent sub-district number for PILOT_PN and adjacent area PN, PN is corresponding with the adjacent area) etc. configuration parameter, judge STATUS_REPORT_MODE, STATUS_REPORT_PERIOD, PILOT_PN and adjacent area PN report pattern with the state of being stored, the state report cycle, whether system pilot and Neighboring Cell List be identical, if it is identical all, then abandon these configuration parameters, if it is not and identical entirely, then the parameter of new parsing that will be different with the institute storage configuration parameter is replaced raw parameter, as the new configuration parameter of described colony terminal.System side by this step finish to colony terminal report mechanism configuration.
Fig. 2 is the flow chart of digital packet terminal of the present invention pilot frequency information reporting method in conventional group calling, and as shown in Figure 2, pilot frequency information reporting method of the present invention may further comprise the steps:
Step 201: system side is encapsulated as configuration messages with the configuration parameter of colony terminal, sends to colony terminal by eating dishes without rice or wine.This step and abovementioned steps 101 are identical, repeat no more here.
Step 202: colony terminal is resolved this information after receiving the configuration information of system side, at least obtain system pilot in the described configuration information, pilot frequency information reporting pattern and adjacent area list information, according to the described colony terminal stored configuration information of the information synchronization that parses.This step and abovementioned steps 102 are identical, repeat no more here.
Step 203: colony terminal detects the energy of each pilot value in the Neighboring Cell List in this colony terminal institute stored configuration information, with the pilot value in the current Active Set as reporting pilot tone.
This step promptly detects each adjacent area pilot value in the Neighboring Cell List received in the colony terminal, judge whether each adjacent area pilot energy value has exceeded the setting energy threshold, (determined by system side, be handed down to colony terminal) pilot tone for exceeding energy threshold is positioned over current Active Set.This step is identical with implementation in the CDMA2000 standard.
Step 204: when colony terminal is in service condition, according to the pilot frequency information reporting pattern in the configuration information, on give the correct time and report pilot frequency information to encapsulate into to report automatically in the PTT User Status reporting message (PTT User Status Report) what determine in the step 203.
PTT User Status reporting message makes up according to the IS2000 agreement, is the SDB form, and group system defines proprietary message by the DATABLOCK that uses SDB, and its message format adopts the TLV structure, as shown in Table 4:
| MSG_TYPE (type of message) | Length (length of message text) | MSG_TXT (message text) |
| 8 bits | 8 bits | (8 * Length) bits |
Table four
Wherein, MSG_TYPE is used to distinguish type of message, takies 8 bits, is the message header of SDB message, and in the present embodiment, MSG_TYPE is 0x13; Length represents the length of MSG_TXT, is unit with byte (8 bits), and its length is subjected to the restriction of maximum length of the short message of access channel and paging channel, and length is unrestricted in Traffic Channel; MSG_TXT is a message text, it information that comprises as shown in Table 5:
| Field name | Length (bit) |
| PILOT_PN | 9 |
| DLA_ID | 16 |
| REPORT_MODE | 1 |
| NUM_PN | 3 |
| PN | 9 |
| RECORD | Undetermined |
Table five
Wherein, PILOT_PN represents the PN of the sub-district at colony terminal complement channel place; DLA_ID represents the deployment position district at colony terminal supplement channel place.Because PN may be multiplexing, so system side has only by DLA_ID and PN and comes together to judge sub-district, mobile phone place according to the sub-district that the PN of complement channel can not determine the colony terminal place fully; REPORT_MODE represents to report pattern, and value is 1 in invention, and the expression state is for reporting, and the PN tabulation is current active set.NUM_PN represents the PN number, is the number of active set in the present invention; PN represents active set; RECORD is a terminal label, is the international series number (IMSI, International Mobile Subscriber Identity) of terminal herein, and this field can be filled in by the CDMA standard, and being used to distinguish is the handoff request message of which terminal to report.
Need to prove,, then not report that promptly step 204 pair this colony terminal is invalid under this situation if the STATUS_REPORT_MODE in the configuration information that colony terminal receives is 00; STATUS_REPORT_MODE is 01 or 11 and reports PTT User Status reporting message immediately; STATUS_REPORT_MODE is 10 or 11 o'clock, then trigger corresponding timer, periodically to report PTT User Status reporting message, in not overtime PTT system parameters and the Neighboring Cell List message (can not receive BCAM message under the service condition) of receiving that system issues of timer, then return step 202, report corresponding PTT User Status reporting message again after reconfiguring colony terminal.
The present invention has realized reporting automatically of colony terminal pilot frequency information under the situation that does not influence the colony terminal regular traffic, the pilot frequency information that makes things convenient for system to report according to colony terminal carries out the sub-district and switches.The present invention is practical and simple.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1, the collocation method of a kind of digital packet terminal pilot frequency information reporting mechanism in conventional group calling is characterized in that, this method comprises:
The colony terminal that stores configuration information is resolved this information after receiving the configuration information of system side, at least obtain system pilot in the described configuration information, pilot frequency information reporting pattern and adjacent area list information, according to the described colony terminal stored configuration information of the information synchronization that parses.
2, method according to claim 1, it is characterized in that, described system side is notified described colony terminal by channel assignment message with described configuration information when described colony terminal is in idle condition or access state, colony terminal also receives the neighbor cell list updating message from system side, and, store in the adjacent area list information according to the pilot frequency information that neighbor cell list updating message collection needs report.
3, method according to claim 1 is characterized in that, described system side is notified described colony terminal by PTT system parameters and Neighboring Cell List message with described configuration information when described colony terminal is in service condition.
According to claim 2 or 3 described methods, it is characterized in that 4, described pilot frequency information reporting pattern comprises: do not report, report immediately, periodically report and report cycle, report immediately and periodically report and report cycle.
5, a kind of digital packet terminal pilot frequency information reporting method in conventional group calling is characterized in that this method comprises:
The colony terminal that stores configuration information is resolved this information after receiving the configuration information of system side, at least obtain system pilot in the described configuration information, pilot frequency information reporting pattern and adjacent area list information, according to the described colony terminal stored configuration information of the information synchronization that parses;
Described colony terminal detects the energy of each pilot value in the Neighboring Cell List in institute's stored configuration information, with the pilot value in the current Active Set as reporting pilot tone; And
When described colony terminal is in service condition, according to the pilot frequency information reporting pattern in the configuration information, on give the correct time the described information that reports pilot tone encapsulated into and report automatically in the PTT User Status reporting message.
6, method according to claim 5 is characterized in that, described configuration information is notified described colony terminal by channel assignment message when described colony terminal is in idle condition or access state.
7, method according to claim 5 is characterized in that, described configuration information passes through PTT system parameters and the described colony terminal of Neighboring Cell List message informing when described colony terminal is in service condition.
According to claim 6 or 7 described methods, it is characterized in that 8, described pilot frequency information reporting pattern comprises: do not report, report immediately, periodically report and report cycle, report immediately and periodically report and report cycle.
9, method according to claim 8 is characterized in that, this method also comprises:
When definite described pilot frequency information reporting pattern reports for periodicity, when described colony terminal received the configuration information of system side before pilot frequency information reporting, described colony terminal is reported the mechanism configuration; Otherwise the PTT User Status reporting message that will carry pilot frequency information in each cycle reports.
10, method according to claim 8 is characterized in that, also comprises the deployment position sign at described colony terminal supplement channel place in the described PTT User Status reporting message.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100937019A CN101562785A (en) | 2008-04-16 | 2008-04-16 | Method for reporting pilot frequency in traditional group calling and method for configuring reporting mechanism |
| PCT/CN2008/072257 WO2009127105A1 (en) | 2008-04-16 | 2008-09-03 | A reporting method and a reporting mechanism configuration method for the pilot in the traditional group call |
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|---|---|---|---|
| CNA2008100937019A CN101562785A (en) | 2008-04-16 | 2008-04-16 | Method for reporting pilot frequency in traditional group calling and method for configuring reporting mechanism |
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| WO (1) | WO2009127105A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101730122B (en) * | 2009-12-11 | 2012-05-02 | 北京北方烽火科技有限公司 | User detection device suitable for CDMA2000 network and method |
| CN102740329A (en) * | 2011-04-15 | 2012-10-17 | 中兴通讯股份有限公司 | Method and apparatus of parameter distribution, and method and apparatus of parameter configuration |
| CN106304339A (en) * | 2016-08-17 | 2017-01-04 | 西安拓奇电子科技有限公司 | Pairing processing method, the first transmitter receiver, the second transmitter receiver and pairing processing system |
| CN107438232A (en) * | 2016-05-25 | 2017-12-05 | 大唐移动通信设备有限公司 | A kind of cluster group UE service condition report and acquisition methods, device |
| WO2019000188A1 (en) * | 2017-06-26 | 2019-01-03 | 北京小米移动软件有限公司 | System message transmission method and method, and system message reception method and device |
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| CN103856899B (en) | 2012-11-30 | 2018-03-09 | 北京信威通信技术股份有限公司 | Resource regulating method is organized in a kind of cluster communication |
| CN113055953B (en) * | 2021-02-03 | 2023-10-24 | 海能达通信股份有限公司 | Communication terminal, handover method, system, base station and storage medium thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100459564B1 (en) * | 2000-06-21 | 2004-12-03 | 삼성전자주식회사 | apparatus and method for reporting service load to mobile station in mobile communication system |
| US6775340B1 (en) * | 2000-10-13 | 2004-08-10 | Ericsson Inc. | Synchronization and channel estimation with extended pilot symbols |
| CN1964551A (en) * | 2005-11-08 | 2007-05-16 | 中兴通讯股份有限公司 | A method to realize soft hand-over of group call in CDMA cluster system |
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2008
- 2008-04-16 CN CNA2008100937019A patent/CN101562785A/en active Pending
- 2008-09-03 WO PCT/CN2008/072257 patent/WO2009127105A1/en active Application Filing
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| CN101730122B (en) * | 2009-12-11 | 2012-05-02 | 北京北方烽火科技有限公司 | User detection device suitable for CDMA2000 network and method |
| CN102740329A (en) * | 2011-04-15 | 2012-10-17 | 中兴通讯股份有限公司 | Method and apparatus of parameter distribution, and method and apparatus of parameter configuration |
| CN107438232A (en) * | 2016-05-25 | 2017-12-05 | 大唐移动通信设备有限公司 | A kind of cluster group UE service condition report and acquisition methods, device |
| CN107438232B (en) * | 2016-05-25 | 2019-11-19 | 大唐移动通信设备有限公司 | A kind of service condition of cluster group UE report and acquisition methods, device |
| CN106304339A (en) * | 2016-08-17 | 2017-01-04 | 西安拓奇电子科技有限公司 | Pairing processing method, the first transmitter receiver, the second transmitter receiver and pairing processing system |
| WO2019000188A1 (en) * | 2017-06-26 | 2019-01-03 | 北京小米移动软件有限公司 | System message transmission method and method, and system message reception method and device |
| CN109429566A (en) * | 2017-06-26 | 2019-03-05 | 北京小米移动软件有限公司 | System message transmission method and device, system message method of reseptance and device |
| CN109429566B (en) * | 2017-06-26 | 2019-11-01 | 北京小米移动软件有限公司 | System message transmission method and device, system message method of reseptance and device |
| RU2733065C1 (en) * | 2017-06-26 | 2020-09-29 | Бейдзин Сяоми Мобайл Софтвэр Ко., Лтд. | Method and apparatus for transmitting system messages, as well as method and apparatus for receiving system messages |
| US11272431B2 (en) | 2017-06-26 | 2022-03-08 | Beijing Xiaomi Mobile Software Co., Ltd. | System message transmission method and device, and system message reception method and device |
| US11800435B2 (en) | 2017-06-26 | 2023-10-24 | Beijing Xiaomi Mobile Software Co., Ltd. | System message transmission method and device, and system message reception method and device |
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| Publication number | Publication date |
|---|---|
| WO2009127105A1 (en) | 2009-10-22 |
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