CN102833790B - Method for transmitting control signaling - Google Patents

Method for transmitting control signaling Download PDF

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Publication number
CN102833790B
CN102833790B CN201110157971.3A CN201110157971A CN102833790B CN 102833790 B CN102833790 B CN 102833790B CN 201110157971 A CN201110157971 A CN 201110157971A CN 102833790 B CN102833790 B CN 102833790B
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China
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control signal
described
base station
region
control signaling
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CN201110157971.3A
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Chinese (zh)
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CN102833790A (en
Inventor
易三军
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普天信息技术研究院有限公司
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Abstract

The invention provides a method for transmitting control signaling, comprising the following steps: a base station semi-persistently allocates an area for transmitting the specified control signaling in a data service area and informs UE (user equipment) through a broadcast or signaling, and the base station transmits the specified control signaling by using the area allocated semi-persistently. Due to the adoption of the method, the service data and the resource distribution of the control signaling can be balanced flexibly, the special control channel can be provided for the corresponding UE and service flexibly, and the coexistence of various services can be realized flexibly.

Description

A kind of control signal sending method

Technical field

The present invention relates to the control channel technology of communication system, particularly a kind of control signal sending method.

Background technology

Comprising in the wireless communication system of OFDM/OFDMA at present, control channel place running time-frequency resource is more fixing, facilitates UE to obtain; Also some design completely dynamically places control information, makes control information and business datum can abundant mixed transport, too dynamically, too increases complexity and the computational complexity of signaling.

In existing OFDM/OFDMA system, control channel design adapts to data service data more flexibly, and signaling consumption is larger; And along with the development of mobile Internet, there is a lot of short data transmission demand in emerging in multitude of the short data services such as mutual, the instant message of similar microblogging, twitter, game.Simultaneously along with the many monitoring parameters of development of Internet of Things, the transmission of quantity of state, also has the demand of the novel short data transmission of part.In the transmission of short data service, each business datum amount is less, but the transfer ratio of control signal is more frequent.In existing control signal transmission, control channel place video resource is fixed, the division of the physical radio resource of the physical radio resource that control signal uses and transfer of data take OFDM symbol as boundary, therefore, the situation that control signal is congested may be there is, and the Radio Resource in business datum district may be also available free, be difficult to the physical radio resource that well balance controls to use with business datum district.

Simultaneously, in existing control signal transmission, control channel place running time-frequency resource is more fixing, although facilitate receiving terminal to obtain, but down control channel position is identical between neighbor cell, when identical networking, the interference between control channel is difficult to eliminate, and part UE needs the minizone of better control channel to carry out interference coordination, just good systematic function can be obtained.

And in the OFDM/OFDMA system of the public, the business special for some and terminal, if still adopt common control channel to carry out control signal transmission, need the extra expense increasing control signal, when realizing multi-service and coexisting, implementation complexity is higher.

Summary of the invention

The invention provides a kind of control signal sending method, can the Resourse Distribute of balancing traffic data and control signal flexibly, provide special control channel to corresponding UE and business flexibly, realize multiple business flexibly and deposit.

For achieving the above object, the present invention adopts following technical scheme:

A kind of control signal sending method, comprising:

Base station semi-persistent in data service region marks off the region for transmitting specified control signaling, is given the UE under this base station by broadcast or signaling;

The described area transmissions specified control signaling that described base station utilizes semi-persistent to divide.

Preferably, described specified control signaling is the control signal of short data service.

Preferably, described specified control signaling is the control signal being transferred to particular UE, and described particular UE is the Cell Edge User needing strong jamming to coordinate.

Preferably, in same coordinated multipoint transmission region, it is different for the physical resource transmitting specified control signaling area that adjacent base station marks off.

Preferably, described specified control signaling is the control signal for controlling to specify in private network type service.

Preferably, with on the Adjacent resource of common control channel place running time-frequency resource, the region for transmitting specified control signaling is marked off.

Preferably, in the term of validity that semi-persistent divides, the described region marked off is all effective to all subframes.

Preferably, in the term of validity that semi-persistent divides, the described region marked off is effective to part given sub-frame.

Preferably, the position that occurs of the effective subframe in the pre-configured described region to marking off and frequency.

Preferably, the method comprises further: carry out controlling and the business adopting SPS to transmit for by described specified control signaling, by the position of the control signal of this business in described semi-persistent range of distribution and this business by the traffic channel resource of period allocated between set up mapping relations;

Described base station transmit described undertaken controlling by specified control signaling and the control signal of the business adopting SPS to transmit time, according to described mapping relations, the position of correspondence is transmitted the control signal of this business.

Preferably, in different subframe, mark off for transmit specified control signaling region shared by running time-frequency resource position move by preset rules; The method comprises further: described preset rules is notified the UE under this base station by described base station.

As seen from the above technical solution, in the present invention, base station marks off the region for transmitting specified control signaling in data service region, is distributed to the UE under this base station by broadcast or signaling semi-persistent; The described area transmissions specified control signaling that described base station utilizes semi-persistent to distribute.By the way, utilize business datum area transmissions specified control signaling, thus make full use of business datum region, alleviate too much control signal and transmit on a control channel and the control channel congestion problems caused.

Accompanying drawing explanation

Fig. 1 is the control signal transmission method schematic flow sheet of short data service in the embodiment of the present invention one;

Fig. 2 is that in the present invention, control signal transmission region divides example;

Fig. 3 is the control signal transmission method schematic flow sheet of particular UE in the embodiment of the present invention two;

Fig. 4 is the control signal transmission method schematic flow sheet of particular service in the embodiment of the present invention three.

Embodiment

For making object of the present invention, technological means and advantage clearly understand, below in conjunction with accompanying drawing, the present invention is described in further details.

Basic thought of the present invention is: the resource transmission control signal utilizing Traffic Channel, thus solves control signal and the unbalanced problem of business datum Resourse Distribute.

Particularly, the control signal sending method in the present invention comprises: base station semi-persistent in data service region marks off the region for transmitting specified control signaling, is given the UE under this base station by broadcast or signaling; The described area transmissions specified control signaling that described base station utilizes semi-persistent to divide.Wherein, specified control signaling can be some pre-configured as required UE or the control signal of some particular service, and these signalings, by transmitting in business datum region, to save control channel resource, balance the Resourse Distribute of control signal and business datum.Below by three specific embodiments, specific implementation of the present invention is described, wherein each embodiment correspondence arranges corresponding specified control signaling.

Embodiment one:

In the present embodiment, the control signal for short data service transmits in business datum region.Fig. 1 is the control signal transmission method flow chart of short data service in the present embodiment.The method comprises as shown in Figure 1:

Step 101, base station semi-persistent in data service region marks off the region for transmitting short data service control signal, is given the UE under this base station by broadcast or signaling.

When dividing control signal region in data service region, running time-frequency resource can be selected as required.Preferably, can with on the Adjacent resource of existing common control channel place running time-frequency resource, divide out for transmitting the control signal of short data service, such as, the time domain Adjacent resource of existing common control channel transmits the control signal of short data service, to facilitate user first to obtain control signal, then extract the business datum of this frame according to control signal; Meanwhile, in the present invention, what mark off can take whole OFDM symbol for the region of transmitting short data service control signal or only take part OFDM symbol, like this, can strengthen the flexibility of the utilization of resources.A kind of example of zoning as shown in Figure 2.

The short data service control signal transmission region that base station marks off is semi-persistent, concrete semi-persistent divides the semi-continuous scheduling (SPS) be similar in existing system, by the disposable division in base station and after informing UE, this region is always as control signal transmission region, until this division is cancelled by broadcast or signaling method again in base station.

When dividing short data service control signal transmission region in base station, in the term of validity that this semi-persistent divides, the region marked off can be all effective to all subframes, and namely in this term of validity in all subframes, corresponding running time-frequency resource is all for transmitting the control signal of short data service; Or, also can by pre-configured, the region that instruction marks off is only effective to part subframe, and can configure position and the frequency of the appearance of effective subframe, and the density degree of concrete effectively subframe can be configured according to the traffic carrying capacity of short data.To in the effective situation of part subframe, the subframe in semi-continuous division control channel region, can mix with the general subframe without semi-continuous division control channel region and deposit, the subframe with semi-continuous division control channel region periodically sends with the sparse degree of difference as required.

When semi-continuous division is for transmitting the region of short data control signal, on different sub frames, running time-frequency resource position shared by the region marked off can be identical, or, running time-frequency resource position shared by the region that different subframe marks off also can be moved according to preset rules, is similar to frequency hopping operation of the prior art, such as, in adjacent two subframes, several units are moved in the running time-frequency resource position marked off shared by region in time domain or frequency domain direction.For the mode of moving running time-frequency resource position according to preset rules, by interference randomization, the control signal interference eliminated between user can be beneficial to; Meanwhile, base station needs preset rules to notify the UE under this base station, and like this, the UE carrying out short data service according to rule in advance, can determine that position receives the control signal of corresponding short data service accurately.

The region of division is informed to the UE under this base station by broadcast or signaling method by base station.Wherein, can be high-level signaling in signaling, also can be bottom signaling.

Step 102, the control signal of the area transmissions short data service that base station utilizes semi-persistent to divide.

After the semi-continuous division of step 101, in the term of validity of this division, base station is when needing the control signal transmitting short data service, and the region utilizing this semi-persistent to divide carries corresponding short data service control signal.

So far, the control signal sending method flow process of base station side terminates.Received the control signal of short data service again in relevant position by UE by following step.

Step 103, carries out the UE of short data service in base station, receive the control signal of short data service in the region of semi-continuous division.

UE in base station, if ongoing business comprises short data service, then the running time-frequency resource that UE specifies when the semi-continuous division in base station receives the control signal of corresponding short data service.

The above-mentioned basic skills being control signal transmission in the present embodiment.By the way, traffic channel resource control channel can be utilized, thus save control channel expense, and control information and business datum taking resource can be balanced better.Be the physical control channel that short data is offered simultaneously, be beneficial to the timely transmission of control information, adapt to various short data service.In addition, between neighbor cell, semi-continuous division is different for the regional location possibility transmitting short data service control signal, when identical networking, likely eliminates the interference between short data control signal, improves systematic function to a certain extent.

In such scheme, the short data service control signal transmission region marked off in business datum region, its usage is identical with existing control channel usage, using it as being used for the resource pool transmitting short data service control signal, need the control signal of transmission in this resource pool, to select running time-frequency resource to transmit arbitrarily, flexibility is larger.

Or, for simplifying control signal itself further, also can in this resource pool, specify running time-frequency resource position to carry out the transmission of specific control signal, specific as follows:

In more existing short data services, SPS mode can be adopted to carry out business data transmission, namely after a scheduling traffic channel resource, UE can periodically use the resource of this scheduling to carry out business data transmission.For the UE adopting SPS mode to carry out business data transmission, in the present invention preferably, the SPS that the band of position of control signal and business data transmission adopt takes certain binding, to simplify associating of control signal and business datum.When specific implementation, mapping relations are set up between the traffic channel resource that the position of the business control signaling adopting SPS mode to transmit in semi-persistent range of distribution and this business are assigned with, base station is when for corresponding service control channel, directly according to the mapping relations set up, determine the control signal position that traffic channel resource that this business is assigned with is corresponding, relevant position is transmitted the control signal of this business; UE according to the mapping relations set up, the relevant position of semi-persistent range of distribution receives the control signal of corresponding service equally.Like this, control signal itself can be simplified further, and simplify associating of control signal and business datum.

Embodiment two:

In the present embodiment, the control signal for particular UE transmits in business datum region, and concrete particular UE refers to the cell edge UE needing strong jamming to coordinate, such as, enter the UE in coordinated multipoint transmission (CoMP) region.Fig. 3 is the control signal transmission method flow chart of particular UE in the present embodiment.The method comprises as shown in Figure 3:

Step 301, base station semi-persistent in data service region marks off the region of the control signal for transmitting particular UE, is given all UE under this base station by broadcast or signaling.

Wherein, the mode dividing control signal region is identical with abovementioned steps 101 with the method for salary distribution, just repeats no more here.

Further, when dividing the region of particular UE control signal, for carrying out interference coordination further, preferably, in same coordinated multipoint transmission region, it is different for the region of transmitting specified control signaling that adjacent base station marks off, and mutually staggers in time domain or frequency domain.Like this, interfering with each other between control signal can be avoided.

Step 302, after base station detects the cell edge UE needing strong jamming to coordinate, the control signal of this UE of area transmissions utilizing semi-persistent to divide.

Wherein, the mode specifically detecting the cell edge UE of the UE needing strong jamming to coordinate is identical with existing mode, just repeats no more here.

Step 303, the cell edge UE needing strong jamming to coordinate, at the areas accept control signal that semi-persistent distributes.

So far, the method flow in the present embodiment terminates.By the control signal in business datum area transmissions particular UE in the method, thus reduce the interference between different UEs control signal.

In the present embodiment, also can be identical with embodiment one, in the business adopting SPS mode to transmit, set up mapping relations by between control signal position and traffic channel resource, thus simplify associating of control signal itself and control signal and business datum further.

Embodiment three:

In the present embodiment, the control signal for the particular service in public OFDM/OFDMA system transmits in business datum region, and concrete particular service can be the specified type business in private network, such as, business in the private network such as public security, traffic police.Fig. 4 is the control signal transmission method flow chart of particular service in the present embodiment.The method comprises as shown in Figure 4:

Step 401, base station semi-persistent in data service region marks off the region for transmitting particular service control signal, is given to all UE under this base station by broadcast or signaling.

Wherein, the mode dividing control signal region is identical with abovementioned steps 101 with advice method, just repeats no more here.

Step 402, the control signal of the area transmissions particular service that base station utilizes semi-persistent to divide.

Step 403, the control signal of this business of areas accept that the UE of particular service distributes at semi-persistent.

Wherein, some particular services use general purpose terminal, then this Terminal Type is when carrying out particular service, at the control signal of the areas accept corresponding service that semi-persistent distributes.Some particular services use particular terminal, then these particular terminal just direct areas accept control signal divided at semi-persistent, is the control signal of corresponding particular service.

So far, the method flow in the present embodiment terminates.By the present embodiment, some special control signal put areas can be opened up for special business and terminal, thus succinctly realize multi-service and coexist.

In the present embodiment, also can be identical with embodiment one and two, in the business adopting SPS mode to transmit, set up mapping relations by between control signal position and traffic channel resource, thus simplify associating of control signal itself and control signal and business datum further.

Above-mentionedly be specific implementation of the present invention.From above-mentioned three specific embodiments, in the present invention, by going out specific region control channel at business datum Region dividing, thus the resource that balancing traffic data and control signal distribute, improve the mutual disturbance regime of control signal between user, and can succinctly realize multi-service and coexist.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.

Claims (8)

1. a control signal sending method, is characterized in that, the method comprises:
Base station semi-persistent in data service region marks off the region for transmitting specified control signaling, is given the UE under this base station by broadcast or signaling;
The described area transmissions specified control signaling that described base station utilizes semi-persistent to divide;
Wherein, described specified control signaling is the control signal being transferred to particular UE, and described particular UE is the Cell Edge User needing strong jamming to coordinate; In same coordinated multipoint transmission region, it is different for the physical resource transmitting specified control signaling area that adjacent base station marks off.
2. method according to claim 1, is characterized in that, described specified control signaling is the control signal for controlling to specify in private network type service.
3. method according to claim 1 and 2, is characterized in that, with on the Adjacent resource of common control channel place running time-frequency resource, marks off the region for transmitting specified control signaling.
4. the method according to claim or 2, is characterized in that, in the term of validity that semi-persistent divides, the described region marked off is all effective to all subframes.
5. the method according to claim or 2, is characterized in that, in the term of validity that semi-persistent divides, the described region marked off is effective to part given sub-frame.
6. method according to claim 5, is characterized in that, the position that the effective subframe in the pre-configured described region to marking off occurs and frequency.
7. method according to claim 1 and 2, it is characterized in that, the method comprises further: carry out controlling and the business adopting SPS to transmit for by described specified control signaling, by the position of the control signal of this business in described semi-persistent range of distribution and this business by the traffic channel resource of period allocated between set up mapping relations;
Described base station transmit described undertaken controlling by specified control signaling and the control signal of the business adopting SPS to transmit time, according to described mapping relations, the position of correspondence is transmitted the control signal of this business.
8. method according to claim 1 and 2, is characterized in that, in different subframe, mark off for transmit specified control signaling region shared by running time-frequency resource position move by preset rules; The method comprises further: described preset rules is notified the UE under this base station by described base station.
CN201110157971.3A 2011-06-13 2011-06-13 Method for transmitting control signaling CN102833790B (en)

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CN105052224B (en) * 2013-11-22 2019-08-23 华为技术有限公司 Video traffic dispatching method and device

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CN101287282A (en) * 2007-04-11 2008-10-15 华为技术有限公司 Method and apparatus for transmitting control signalling
WO2008041828A3 (en) * 2006-10-04 2009-09-03 Lg Electronics Inc. Methods for transmitting control signal and methods for allocating communication resource to do the same
CN101895927A (en) * 2009-05-22 2010-11-24 中兴通讯股份有限公司 Method for implementing constant dispatching
CN102056299A (en) * 2009-10-28 2011-05-11 北京三星通信技术研究有限公司 Method and device for transmitting downlink control signalling

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008041828A3 (en) * 2006-10-04 2009-09-03 Lg Electronics Inc. Methods for transmitting control signal and methods for allocating communication resource to do the same
CN101287282A (en) * 2007-04-11 2008-10-15 华为技术有限公司 Method and apparatus for transmitting control signalling
CN101895927A (en) * 2009-05-22 2010-11-24 中兴通讯股份有限公司 Method for implementing constant dispatching
CN102056299A (en) * 2009-10-28 2011-05-11 北京三星通信技术研究有限公司 Method and device for transmitting downlink control signalling

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