CN101202971B - Half-duplex call channel control method, network side apparatus, user terminal and system - Google Patents
Half-duplex call channel control method, network side apparatus, user terminal and system Download PDFInfo
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- CN101202971B CN101202971B CN2006101576663A CN200610157666A CN101202971B CN 101202971 B CN101202971 B CN 101202971B CN 2006101576663 A CN2006101576663 A CN 2006101576663A CN 200610157666 A CN200610157666 A CN 200610157666A CN 101202971 B CN101202971 B CN 101202971B
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Abstract
The invention relates to the wireless communication field and discloses a channel control method of half-duplex call, a network side device, a user terminal and a system. In the embodiment of the invention, as a network side allocates a service channel to a user terminal of half-duplex call, an assignment command contains a self-defined mark; the user terminal receives a message which contains the assignment command, and occupies the uplink or downlink of the service channel according to the mark. The invention ensures that when the user terminal of a caller and the user terminal of a receiver are in half-duplex calling, both respectively occupy the uplink of a TCH channel and the downlink of a TCH channel no matter whether the two sides are in the same block or not, thus improving the utilization rate of wireless channel resources and saving wireless channel resources.
Description
Technical field
The present invention relates to the mobile communication technology field, particularly the channel control technology of half-duplex call.
Background technology
The half-duplex operation technology is meant the both sides of communication, have a side to use duplex mode, and use two different frequencies, and the opposing party uses the communication technology of double frequency simplex mode.
Individual call is a kind of call business type in the trunked communication system, is the half-duplex operations of two single-points between the user to single-point.Individual call is by pressing press-and-talk (Push toTalk on the colony terminal, PTT) key is initiated or the request speech, for example, and after user A chooses user B number and presses the PTT key, user B can hear the speech of user A at once, but user B can only listen not talkative this moment; After user A unclamped the PTT key, user B pressed the PTT key and just can speak.
When speaker's user terminal of individual call and hearer's user terminal during in same sub-district, (Traffic Channel, TCH), speaker's user terminal is also monitored the downlink voice of this TCH simultaneously by the up transmission voice of this TCH to both shared Traffic Channels.Hearer's user terminal is only monitored the downlink voice of this TCH, does not use that this TCH's is up.
When speaker's user terminal of individual call and hearer's user terminal during not in same sub-district, both take a complete TCH channel respectively.Hearer's user terminal does not use that this TCH's is up.
Existing individual call realization flow comprises the steps:
Step 101: after speaker's user terminal was initiated individual call, network side all sub-districts in the lane place at hearer's user terminal place sent the message that comprises hearer's user ID.This message can be paging channel (Paging Channel, PCH) beep-page message on or notification channel (NotificationChannel, NCH) notification message on; This user ID can be international mobile subscriber identity (International Mobile Subscriber Identity, IMSI).
Step 102:, then return page-response message to network side if the message that hearer's user terminal is received is beep-page message; If the message that hearer's user terminal is received is notification message, then return push-notification-answer message; The response message that network side returns according to hearer's user terminal is determined the location information of cell of hearer's user terminal.
Step 103: hearer's user terminal is set up signaling with network and is connected, network side distributes wireless channel according to the location information of cell of hearer's user terminal for hearer's user terminal, for example: Traffic Channel etc., and by assignment procedure hearer's user terminal is assigned on the wireless channel that is distributed.If the sub-district at hearer's user terminal place is identical with speaker's user terminal, then can assign to hearer's user terminal on the channel at speaker's user terminal place by assignment procedure, promptly both share a channel; If the sub-district at hearer's user terminal place is different with speaker's user terminal, then at the wireless channel of cell allocation at hearer's user terminal place.
Step 104: hearer's user terminal is assigned to after the allocated channel, and the calling and called both sides can converse.
Because the half-duplex characteristics of individual call, when speaker's user terminal in when speech, does not have other user's voice and transmitting, so speaker's user terminal there is no need to monitor the descending of TCH, hearer's user terminal is only monitored the downlink voice of this TCH, also there is no need to keep the up of this TCH.Prior art does not make full use of the half-duplex characteristics of individual call, when speaker's user terminal and hearer's user terminal the time not in same sub-district, both take a complete TCH channel respectively, waste a up and TCH channel descending of a TCH channel, expended the radio channel resource of half more.
Summary of the invention
The technical problem underlying that embodiments of the present invention will solve provides a kind of channel control method, network side apparatus, user terminal and system of half-duplex call, has improved the radio channel resource utilance of half-duplex call.
For solving the problems of the technologies described above, embodiments of the present invention provide a kind of channel control method of half-duplex call, are used for trunked communication system when speaker's user terminal and hearer's user terminal during not in same sub-district, comprise following steps:
Network side carries self-defining sign in Assignment Command when giving the user terminal distribution service channel of half-duplex call;
User terminal receives the message of carrying above-mentioned Assignment Command, takies the upstream or downstream of Traffic Channel according to above-mentioned sign.
Embodiments of the present invention also provide a kind of network side apparatus that is used for the control of half-duplex call channel, be used for trunked communication system when speaker's user terminal and hearer's user terminal during not in same sub-district, comprise: message transmission module, be used for when network side when giving the user terminal distribution service channel of half-duplex call, in Assignment Command, carry self-defining sign, this sign is used to represent the upstream or downstream of Traffic Channel, or be used to represent traffic channel assignments to as if speaker's user terminal or hearer's user terminal.
Embodiments of the present invention also provide a kind of user terminal, be used for trunked communication system when speaker's user terminal and hearer's user terminal not at the half-duplex call of same sub-district, comprising:
The message sink module, be used to receive the message of carrying Assignment Command of network side transmitted, this message is that network side issues when giving the user terminal distribution service channel of half-duplex call, carry self-defining sign in the above-mentioned Assignment Command, this sign is used to represent the upstream or downstream of described Traffic Channel, or be used to represent traffic channel assignments to as if speaker's user terminal or hearer's user terminal.
Command execution module with the coupling of message sink module, is used for taking according to above-mentioned sign the upstream or downstream of Traffic Channel.
Embodiments of the present invention also provide a kind of channel selecting method of half-duplex call, are used for trunked communication system when speaker's user terminal and hearer's user terminal during not in same sub-district, comprising:
The user terminal of half-duplex call receives the assignment Traffic Channel order from network side, wherein, carries self-defining sign in the Assignment Command; User terminal takies the upstream or downstream of Traffic Channel according to this sign.
Each execution mode of the present invention compared with prior art, its beneficial effect is: speaker's user terminal and hearer's user terminal are in half-duplex call, both are not when same sub-district, take the descending of the up of a TCH channel and a TCH channel respectively, improve the utilance of radio channel resource, saved radio channel resource.
Description of drawings
Fig. 1 is the channel control method flow chart of the half-duplex call of the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is further elaborated below in conjunction with accompanying drawing.
In the embodiments of the present invention, network side is when giving the user terminal distribution service channel of half-duplex call, carry self-defining sign in Assignment Command, user terminal receives the message of carrying above-mentioned Assignment Command, takies the upstream or downstream of Traffic Channel according to above-mentioned sign.
Above-mentioned sign can be used to represent the upstream or downstream of Traffic Channel; Or be used to represent traffic channel assignments to as if speaker's user terminal or hearer's user terminal.
User terminal take Traffic Channel the upstream or downstream step can for: if user terminal is speaker's user terminal, then take the up of Traffic Channel; If user terminal is hearer's user terminal, then take the descending of Traffic Channel.
The embodiments of the present invention can so that speaker's user terminal and hearer's user terminal in half-duplex call, no matter whether both are in same sub-district, both take the descending of the up of a TCH channel and a TCH channel respectively, improve the radio channel resource utilance, saved radio channel resource.
For explaining conveniently, below be that example is described the situation of half-duplex call in bright each execution mode of we all with the individual call in the gsm system.
Below first execution mode of the present invention is described in detail, present embodiment relates to a kind of channel control method of half-duplex call.
Specifically, as shown in Figure 1:
Step 101: network side carries self-defining sign in Assignment Command when giving the user terminal distribution service channel of individual call;
Step 102: user terminal receives the message of carrying above-mentioned Assignment Command, takies the upstream or downstream of Traffic Channel according to above-mentioned sign.
Above-mentioned sign can be used to represent the upstream or downstream of Traffic Channel; Or be used to represent traffic channel assignments to as if speaker's user terminal or hearer's user terminal.
User terminal take Traffic Channel the upstream or downstream step can for: if user terminal is speaker's user terminal, then take the up of Traffic Channel; If user terminal is hearer's user terminal, then take the descending of Traffic Channel.
If hearer's user terminal and speaker's user terminal are within same sub-district, both can take the up-downgoing of same TCH respectively, also can take the up-downgoing of different TCH respectively; If hearer's user terminal and speaker's user terminal be not within same sub-district, then both can take the up-downgoing of different TCH respectively.
If speaker's user terminal discharges the PTT key, then network side can discharge the up of Traffic Channel that speaker's user terminal takies, can discharge simultaneously with this speaker's user terminal and be in the descending of Traffic Channel that hearer's user terminal of same individual call takies.
Network side can take on the descending slow associated control channel of correspondence of Traffic Channel of upstream or downstream or the descending Fast Associated Control Channel at user terminal and send signaling to user terminal, this signaling is carried self-defining sign, and being used to distinguish this signaling is by hearer's user terminal processes or by speaker's user terminal processes.
After user terminal receives above-mentioned signaling, can judge whether according to the sign that signaling is carried handle this signaling, if the result who judges then abandons this signaling for not handling.
User terminal has taken up slow associated control channel (the Slow Associated Control Channel of correspondence of the Traffic Channel of upstream or downstream, SACCH) and up Fast Associated Control Channel (FastAssociated Control Channel FACCH) can be taken by speaker's user terminal.
Power control commands on the Traffic Channel of individual call can be used for the uplink power control of speaker's user terminal, can be not used in the descending power control of speaker's user terminal.
Speaker's user terminal can be by its SACCH reporting measurement reports that has taken the Traffic Channel correspondence of upstream or downstream, and hearer's user terminal is reporting measurement reports not.
When striding the sub-district, speaker's user terminal can adopt switching flow.When striding the sub-district, hearer's user terminal can carry out the sub-district gravity treatment; Gravity treatment is arrived before other sub-district, can pass through Random Access Channel (Random Access Channel, RACH) report a cell re-selection request, network side is distributed the Target cell channel for hearer's user terminal, be TCH descending after, tell hearer's user terminal Target cell channel to describe by FACCH or SACCH again, hearer's user terminal can gravity treatment arrive Target cell then.
In the present embodiment, speaker's user terminal and hearer's user terminal are in half-duplex call, no matter whether both are in same sub-district, both take the descending of the up of a TCH channel and a TCH channel respectively, improve the radio channel resource utilance, saved radio channel resource.
Second execution mode of the present invention relates to a kind of network side apparatus that is used for the control of half-duplex call channel, comprise: message transmission module, be used for when network side when giving the user terminal distribution service channel of half-duplex call, in Assignment Command, carry self-defining sign, this sign is used to represent the upstream or downstream of Traffic Channel, or be used to represent traffic channel assignments to as if speaker's user terminal or hearer's user terminal.
The 3rd execution mode of the present invention relates to a kind of user terminal, comprising:
The message sink module, be used to receive the message of carrying Assignment Command of network side transmitted, this message is that network side issues when giving the user terminal distribution service channel of half-duplex call, carry self-defining sign in the above-mentioned Assignment Command, this sign is used to represent the upstream or downstream of described Traffic Channel, or be used to represent traffic channel assignments to as if speaker's user terminal or hearer's user terminal;
Command execution module with the coupling of message sink module, is used for taking according to above-mentioned sign the upstream or downstream of Traffic Channel.
The 4th execution mode of the present invention relates to a kind of system that is used for half-duplex call channel control, comprises the network side apparatus that is used for the control of half-duplex call channel in second execution mode and the user terminal of the 3rd execution mode.
To sum up, each execution mode of the present invention compared with prior art, its beneficial effect is: speaker's user terminal and hearer's user terminal are in half-duplex call, no matter whether both are in same sub-district, both take the descending of the up of a TCH channel and a TCH channel respectively, improve the utilance of radio channel resource, saved radio channel resource.
Those skilled in the art will be appreciated that, though above embodiment is to be example with the individual call in the GSM trunking communication, the range of application of the channel control method of the described half-duplex call of the inventive method, network side apparatus, user terminal and system is not limited only to secret call service among the GSM, can also be applicable in the half-duplex call business in the various communication systems.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. the channel control method of a half-duplex call is used for trunked communication system when speaker's user terminal and hearer's user terminal during not in same sub-district, it is characterized in that, may further comprise the steps:
Network side is when giving the user terminal distribution service channel of half-duplex call, in Assignment Command, carry self-defining sign, wherein, described sign is used to represent the upstream or downstream of described Traffic Channel, or be used to represent described traffic channel assignments to as if speaker's user terminal or hearer's user terminal;
Described user terminal receives the message of carrying described Assignment Command, takies the upstream or downstream of described Traffic Channel according to described sign;
Network side sends signaling to described user terminal on the descending slow associated control channel of described Traffic Channel correspondence or descending Fast Associated Control Channel, described signaling is carried self-defining sign, and being used to distinguish described signaling is by hearer's user terminal processes or by speaker's user terminal processes;
The sign that described user terminal carries according to described signaling judges whether handle described signaling, if the result who judges then abandons described signaling for not handling.
2. method according to claim 1 is characterized in that, the upstream or downstream step that described user terminal takies described Traffic Channel is:
If described user terminal is speaker's user terminal, then take the up of described Traffic Channel;
If described user terminal is hearer's user terminal, then take the descending of described Traffic Channel.
3. method according to claim 1 is characterized in that, the up slow associated control channel and the up Fast Associated Control Channel of described Traffic Channel correspondence are taken by speaker's user terminal.
4. according to each described method of claim 1～3, it is characterized in that described half-duplex call is an individual call.
5. according to each described method of claim 1～3, it is characterized in that described method is applied in the gsm system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101576663A CN101202971B (en) | 2006-12-15 | 2006-12-15 | Half-duplex call channel control method, network side apparatus, user terminal and system |
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| CN2006101576663A CN101202971B (en) | 2006-12-15 | 2006-12-15 | Half-duplex call channel control method, network side apparatus, user terminal and system |
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| CN101202971A CN101202971A (en) | 2008-06-18 |
| CN101202971B true CN101202971B (en) | 2010-12-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102547585A (en) * | 2010-12-21 | 2012-07-04 | 鼎桥通信技术有限公司 | Downlink channel multiplex method in broadband wireless communication system cluster service |
| CN105245322B (en) * | 2015-09-30 | 2019-08-06 | 海能达通信股份有限公司 | Half-duplex operation method, terminal and transmitting station |
| CN109787936B (en) * | 2017-11-14 | 2021-06-29 | 中国电信股份有限公司 | Voice talkback method, talkback terminal and communication system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1569474A1 (en) * | 2004-02-27 | 2005-08-31 | Research In Motion Limited | Transmit channel request messaging for half-duplex voice communications systems |
| CN1708172A (en) * | 2004-06-10 | 2005-12-14 | 华为技术有限公司 | Method for establishing privacy call |
| CN1713753A (en) * | 2004-06-22 | 2005-12-28 | 华为技术有限公司 | Zone re-choice realization of auditor movable table during private calling process |
| CN1719936A (en) * | 2004-07-08 | 2006-01-11 | 华为技术有限公司 | Secret call setting-up method based on cell stage positioning of mobile station |
| CN1767670A (en) * | 2004-10-29 | 2006-05-03 | 华为技术有限公司 | Digital group system PTT point-to-point calling method based on GSM technique |
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- 2006-12-15 CN CN2006101576663A patent/CN101202971B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1569474A1 (en) * | 2004-02-27 | 2005-08-31 | Research In Motion Limited | Transmit channel request messaging for half-duplex voice communications systems |
| CN1708172A (en) * | 2004-06-10 | 2005-12-14 | 华为技术有限公司 | Method for establishing privacy call |
| CN1713753A (en) * | 2004-06-22 | 2005-12-28 | 华为技术有限公司 | Zone re-choice realization of auditor movable table during private calling process |
| CN1719936A (en) * | 2004-07-08 | 2006-01-11 | 华为技术有限公司 | Secret call setting-up method based on cell stage positioning of mobile station |
| CN1767670A (en) * | 2004-10-29 | 2006-05-03 | 华为技术有限公司 | Digital group system PTT point-to-point calling method based on GSM technique |
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