CN102869107B - Control information transmitting method and device - Google Patents
Control information transmitting method and device Download PDFInfo
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- CN102869107B CN102869107B CN201110190766.7A CN201110190766A CN102869107B CN 102869107 B CN102869107 B CN 102869107B CN 201110190766 A CN201110190766 A CN 201110190766A CN 102869107 B CN102869107 B CN 102869107B
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- control channel
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- special subframe
- channel resource
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Abstract
The invention discloses a control information transmitting method and a control information transmitting device, wherein the control information transmitting method comprises the following steps: a special sub frame is established in advance through the orthogonal frequency division multiplexing (OFDM) symbol translational mode, the OFDM symbol in the specific resource of the control channel in the special sub frame is translated to the middle part and/or tail part of the sub frame, namely a normal sub frame is split into micro sub frames, and the flexibility is accordingly increased; when the special sub frame needs to be utilized for configuring control channel resource for a user, the control channel resource is allocated to the user according to the principle that the translational resource in the special sub frame is allocated to a user in strong interference; and the control information to be transmitted to the user is added to the allocated control channel and is transmitted to the user. With the control information transmitting method and the control information transmitting device, the interference of physical resource containing the control channel or control information between cells is relieved, the success rate of signaling receiving and resolving control is improved, and the system performance is effectively improved accordingly.
Description
Technical field
The present invention relates to the resource configuration technology in mobile communication system, particularly relate to sending method and the device of control information.
Background technology
Existing system is when sending control information for user, need to be configured used control channel, concrete collocation method has two kinds: a kind of is static, and namely the running time-frequency resource at control channel place is fixing, correspondingly, receiving terminal carries out obtaining at fixing time-frequency location, another kind is dynamic, and namely the running time-frequency resource at control channel place is transformable, when changing at every turn, need to send and upgrade Indication message, so that receiving terminal is at time-frequency location receiving control message accurately.
In the control channel collocation method of above-mentioned static state, the structure of common subframe as shown in Figure 1, control channel resource is positioned at subframe head, for identical networking system, between neighbor cell, the position of down control channel is the same, therefore, the method can cause the interference problem of minizone control channel, thus influential system performance.
Above-mentioned dynamic control channel collocation method, owing to completely dynamically placing control information, therefore needs to upgrade instruction and controls, so will consume certain signal resource.And along with mobile Internet application, as instant message (IM), microblogging, interactive game etc., and the needs of Internet of Things Deta bearer, can be comparatively large to the expense of control signal, thus may occur the congested of control signal.
Summary of the invention
In view of this, main purpose of the present invention is the sending method and the device that provide a kind of control information, can reduce the adjacent area interference produced when control information sends.
In order to achieve the above object, the technical scheme that the present invention proposes is:
A sending method for control information, the method comprises the following steps:
A, in advance by the mode of orthogonal frequency division multiplex OFDM symbol translation, build special subframe, in described special subframe, the allocated resource place OFDM symbol of control channel moves to middle part and/or the afterbody of subframe;
B, when needs utilize described special subframe to configure control channel resource for user, according to preferential by carrying out the Resourse Distribute of described translation in described special subframe to the principle being in interference user, for described user distributes control channel resource;
C, sending to the control information of described user to be filled in distributed control channel by needing, sending to described user.
A dispensing device for control information, this device comprises:
Special subframe constructing module, for the mode by OFDM symbol translation, build special subframe, in described special subframe, the allocated resource place OFDM symbol of control channel moves to middle part and/or the afterbody of subframe;
Control channel resource distribution module, for utilize when needs described special subframe for user configure control channel resource time, according to preferential by carrying out the Resourse Distribute of described translation in described special subframe to the principle being in interference user, for described user distributes control channel resource;
Information sending module, for by need to send to the control information of described user to be filled in control channel that control channel resource distribution module distributes, sends to described user.
In sum, the sending method of the control information that the present invention proposes and device, special subframe is obtained by carrying out translation to all or part of resource of a subframe internal control channel resource, and according to the preferential distribution Resourse Distribute carrying out described translation in described special subframe being carried out resource to the principle being in interference user, the interference of minizone control channel or control information place physical resource can be alleviated, promote the success rate that control signal receives and resolves, thus effectively improve systematic function.
Accompanying drawing explanation
Fig. 1 is the structural representation of common subframe in the control channel collocation method of existing static state;
Fig. 2 is the method flow schematic diagram of the embodiment of the present invention one;
Fig. 3 is special subframe structural representation one in the embodiment of the present invention one;
Fig. 4 is special subframe structural representation two in the embodiment of the present invention one;
Fig. 5 is the apparatus structure schematic diagram of the embodiment of the present invention one.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
Core concept of the present invention is: adopt the mode of all or part of resource of a subframe internal control channel resource being carried out to translation, the adjacent area interference problem that during to avoid sending control signaling, the different edge customers of neighbor cell produce owing to employing same frequency resources.
Fig. 2 is the method flow schematic diagram of the embodiment of the present invention one, and as shown in Figure 2, this embodiment mainly comprises the following steps:
Step 201, in advance by the mode of OFDM symbol translation, build special subframe, in described special subframe, the allocated resource place OFDM symbol of control channel moves to middle part and/or the afterbody (as shown in Figure 3 and Figure 4) of subframe, in special subframe in Fig. 3, the OFDM symbol of whole control channel resource is moved in the middle part of subframe, in special subframe in Fig. 4, the OFDM symbol of a part of control channel resource is moved in the middle part of subframe.
Here, the described allocated resource of carrying out translation can be also fractional control channel resource for the whole control channel resources in subframe, specifically can determine the appropriate resources quantity of carrying out translation according to the needs of interval interference coordination.
In this step, by the whole control channel resource in subframe or fractional control channel resource are carried out translation, even if the position of control channel resource is from the translational head normal sub-frames to middle part or afterbody, thus obtain special subframe.Like this, in the control channel assigning process of follow-up reality, can dynamically utilize this special subframe to make to be in the strong control channel of dispatched users of interference and the control channel of other users staggers in time, thus effectively can reduce this part interference user be disturbed degree.
What need here to further illustrate is, this step is when constructing special subframe, in fact parton frame in radio frames is carried out splitting be divided into micro-subframe, the parameter to split point is by normal sub-frames transmission, the instruction of resource can maintain the original interior instruction of subframe and indicate across subframe, thus makes the resource of fractional control channel can carry out translation in subframe, forms beating of time domain aspect, can beating in each neighbor cell in well-regulated translation, thus equalization and reduction can avoid presence of intercell interference.
Step 202, when needs utilize described special subframe to configure control channel resource for user, according to preferential by carrying out the Resourse Distribute of described translation in described special subframe to the principle being in interference user, for described user distributes control channel resource.
Here, as previously mentioned, by according to preferential by carrying out the Resourse Distribute of described translation in described special subframe to the principle being in interference user, for user distributes control channel resource, the annoyance level be in suffered by interference user can be reduced.Describedly be in interference user and the current annoyance level the be subject to user higher than a predetermined threshold value, the concrete setting of this threshold value by those skilled in the art, can arrange suitable value according to actual needs.In addition, usually, being in interference user is be in the user of cell edge or the user for collaborative multicast communication region, therefore, also can arrange this threshold value according to the annoyance level of these zone user.
Particularly, the mode needing to utilize described special subframe can be triggered by the cycle for situation that user configures control channel resource determines that the mode that also can be triggered by event is determined, be specifically as follows: when the special subframe life cycle preset arrives, or, when the interference value of intra-cell users reaches predetermined threshold value, certainly also above-mentioned two situations are not limited to, as long as can dynamically utilize special subframe to configure control channel resource for user, to reach the object reducing user's interference.
Described special subframe life cycle, can put suitable value according to the intensity of presence of intercell interference.
Described threshold value, can be arranged by the interference range accepted system wireless performance setting.
In actual applications, when not needing to utilize described special subframe to configure control channel resource for user, then adopt the control channel collocation method of existing static state, namely utilize the common subframe shown in Fig. 1, for user distributes control channel resource, do not repeat them here.
Step 203, sending to the control information of described user to be filled in distributed control channel by needing, sending to described user.
Fig. 5 is corresponding with said method apparatus structure schematic diagram, and as shown in Figure 5, this device comprises:
Special subframe constructing module, for the mode by OFDM symbol translation, build special subframe, in described special subframe, the allocated resource place OFDM symbol of control channel moves to middle part or the afterbody of subframe;
Control channel resource distribution module, for utilize when needs described special subframe for user configure control channel resource time, according to preferential by carrying out the Resourse Distribute of described translation in described special subframe to the principle being in interference user, for described user distributes control channel resource;
Information sending module, for by need to send to the control information of described user to be filled in control channel that control channel resource distribution module distributes, sends to described user.
It is described when needing to utilize described special subframe for when user configures control channel resource being: when the special subframe life cycle preset arrives.
It is described when needing to utilize described special subframe for when user configures control channel resource being: when the interference value of described user reaches predetermined threshold value.
Described allocated resource is whole control channel resource or fractional control channel resource.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a sending method for control information, is characterized in that, the method comprises the following steps:
A, in advance by the mode of orthogonal frequency division multiplex OFDM symbol translation, build special subframe, in described special subframe, the allocated resource place OFDM symbol of control channel moves to middle part and/or the afterbody of special subframe;
B, when needs utilize described special subframe to configure control channel resource for user, according to preferential by carrying out the Resourse Distribute of described translation in described special subframe to the principle being in interference user, for described user distributes control channel resource;
C, sending to the control information of described user to be filled in distributed control channel by needing, sending to described user.
2. method according to claim 1, is characterized in that, described when needing to utilize described special subframe for when user configures control channel resource being: when the special subframe life cycle preset arrives.
3. method according to claim 1, is characterized in that, described when needing to utilize described special subframe for when user configures control channel resource being: when the interference value of described user reaches predetermined threshold value.
4. method according to claim 1, is characterized in that, described allocated resource is whole control channel resource or fractional control channel resource.
5. a dispensing device for control information, is characterized in that, this device comprises:
Special subframe constructing module, for the mode by OFDM symbol translation, build special subframe, in described special subframe, the allocated resource place OFDM symbol of control channel moves to middle part and/or the afterbody of special subframe;
Control channel resource distribution module, for utilize when needs described special subframe for user configure control channel resource time, according to preferential by carrying out the Resourse Distribute of described translation in described special subframe to the principle being in interference user, for described user distributes control channel resource;
Information sending module, for by need to send to the control information of described user to be filled in control channel that control channel resource distribution module distributes, sends to described user.
6. device according to claim 5, is characterized in that, described when needing to utilize described special subframe for when user configures control channel resource being: when the special subframe life cycle preset arrives.
7. device according to claim 5, is characterized in that, described when needing to utilize described special subframe for when user configures control channel resource being: when the interference value of described user reaches predetermined threshold value.
8. device according to claim 5, is characterized in that, described allocated resource is whole control channel resource or fractional control channel resource.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110190766.7A CN102869107B (en) | 2011-07-08 | 2011-07-08 | Control information transmitting method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110190766.7A CN102869107B (en) | 2011-07-08 | 2011-07-08 | Control information transmitting method and device |
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| CN102869107A CN102869107A (en) | 2013-01-09 |
| CN102869107B true CN102869107B (en) | 2015-04-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107734520B (en) | 2016-08-11 | 2020-05-08 | 华为技术有限公司 | Resource allocation method and device |
| WO2023082087A1 (en) * | 2021-11-10 | 2023-05-19 | 上海华为技术有限公司 | Control signaling transmission method, communication node, and base station |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101223753A (en) * | 2005-07-20 | 2008-07-16 | Nxp股份有限公司 | Method and synchronizer for fine OFDM symbol synchronization and method/receiver for the reception of ofdm symbols |
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| US9520972B2 (en) * | 2005-03-17 | 2016-12-13 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101223753A (en) * | 2005-07-20 | 2008-07-16 | Nxp股份有限公司 | Method and synchronizer for fine OFDM symbol synchronization and method/receiver for the reception of ofdm symbols |
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