CN104284435A - PDCCH dispatching method and equipment - Google Patents
PDCCH dispatching method and equipment Download PDFInfo
- Publication number
- CN104284435A CN104284435A CN201410515953.1A CN201410515953A CN104284435A CN 104284435 A CN104284435 A CN 104284435A CN 201410515953 A CN201410515953 A CN 201410515953A CN 104284435 A CN104284435 A CN 104284435A
- Authority
- CN
- China
- Prior art keywords
- cqi
- resource
- base station
- subband
- pdcch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a PDCCH dispatching method. The method includes the steps that after an enhancing PDCCH switch is judged to be turned on by a base station, the sub-band of the maximum CQI is selected from all sub-bands of channel quality indicators (CQIs) reported by terminal UE and serves as a resource for bearing a frequency band of downlink control information (DCI), and first five PRBs in a PDSCH resource area where the frequency band starts are taken as frequency resources for fixedly bearing the DCI. The success rate of receiving PDCCHs by a terminal in the presence of disturbance is increased, and a reliable precondition is provided for accurately analyzing PDSCH service data, so that the quality of free-port data transmission is ensured, the handling capacity of a user is improved in comparison with an original implement method in the same environment, and then the maximization of the system capacity of a wireless communication system is ensured.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of PDCCH dispatching method.The present invention also relates to a kind of PDCCH controlling equipment simultaneously.
Background technology
Current TD-LTE system adopts the PDCCH channel bearing Downlink Control Information DCI (Downlink Control Information) in control area, comprises for the schedule information of descending and transmitting uplink data and uplink power control information etc.When user carries out data service, terminal carries out receiving and demodulating of the descending PDSCH data in this sub-frame data region by according to the DCI information of the PDCCH channel demodulated.
But inventor is realizing finding in process of the present invention, if realize according to current system, for existing in the wireless environment of interference, PDCCH channel has comparatively strong jamming, but PDSCH channel disturbance is more weak.Namely, when interference causes appearance of exacerbations user out in control area to embody more serious than the performance of data area deterioration, the reception of control area will become the bottleneck of customer service experience.Therefore, how to promote the reliability of PDCCH transmission DCI data, become the technical problem that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
The invention provides a kind of PDCCH dispatching method, receive the success rate of PDCCH in order to improve terminal, the method comprises:
Base station judges whether strengthen physical downlink control channel PDCCH switch opens;
If the determination result is YES, the described base station subband of selecting CQI maximum from each subband of terminal UE reporting channel quality designator CQI is as the resource of the frequency band of bearing downlink control information DCI, and front 5 PRB in the Physical Downlink Shared Channel PDSCH resource area started by described frequency band are as the frequency resource of the described DCI information of fixing carrying.
Correspondingly, the invention allows for a kind of PDCCH controlling equipment, comprising:
Judge module, for judging whether strengthen physical downlink control channel PDCCH switch opens;
Scheduler module, for when the judged result of described judge module is for being, the subband selecting CQI maximum from each subband of terminal UE reporting channel quality designator CQI is as the resource of the frequency band of bearing downlink control information DCI, and front 5 PRB in the Physical Downlink Shared Channel PDSCH resource area started by described frequency band are as the frequency resource of the described DCI information of fixing carrying.
As can be seen here, by applying technical scheme of the present invention, base station is after judgement strengthens PDCCH switch opens, the subband selecting CQI maximum from each subband of terminal UE reporting channel quality designator CQI is as the resource of the frequency band of bearing downlink control information DCI, and front 5 PRB in the PDSCH resource area started by frequency band are as the fixing frequency resource carrying DCI information.Improve the success rate of depositing terminal reception PDCCH in an interference situation, reliable precondition is provided for correctly resolving PDSCH business datum, thus ensure that the quality of transfer of data of eating dishes without rice or wine, under equivalent environment, more original realization improves the throughput of user, and then ensure that the maximize system capacity of wireless communication system.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of a kind of PDCCH dispatching method that the present invention proposes;
Fig. 2 is the structural representation of a kind of PDCCH controlling equipment that the present invention proposes.
Embodiment
For solving the technical problem proposed in background technology, the present invention increases in LTE communication system and strengthens PDCCH controlling functions, this function will promote DCI data transmission quality with frequency selective scheduling conbined usage, thus promote the reliability of PDCCH transmission DCI data, promote user's downstream data traffic user perceptibility.
As shown in Figure 1, be the schematic flow sheet of a kind of PDCCH dispatching method that the present invention proposes, comprise the steps:
S101, base station judges whether strengthen physical downlink control channel PDCCH switch opens.
When user carries out downlink business, first judge whether that terminal can be carried out cycle subband CQI and be reported, if terminal opens subband CQI periodic report, then and then be confirmed whether enhancing PDCCH switch opens.Particularly, before this step, described base station judges whether described UE can carry out cycle subband CQI and report; If so, then continue to judge whether described enhancing PDCCH switch is opened.
S102, if the determination result is YES, the base station subband of selecting CQI maximum from each subband of terminal UE reporting channel quality designator CQI is as the resource of the frequency band of bearing downlink control information DCI, and front 5 PRB in the Physical Downlink Shared Channel PDSCH resource area started by described frequency band are as the frequency resource of the described DCI information of fixing carrying.
In S101, strengthen PDCCH switch open if confirm, then base station will report in each subband of CQI the band resource selecting the maximum subband of CQI as carrying DCI information from UE.And in the PDSCH resource area started according to this frequency band the PRB of first 5 as the frequency resource of fixing carrying DCI information.And after this, the CQI that this subframe receives by base station after terminal to report CQI information upgrades again takies the starting point of resource as again upgrading scheduling DCI, if and user carries out downstream data traffic scheduling in identical subframe, the MAC module in base station needs the Resource Block deduction first taken by PDCCH to fall when doing Resourse Distribute.In addition, be also provided with the interface of one-period configuration in base station, the object in this cycle is the size that reports of all CQI in this cycle of statistics and numerical value.The subband selecting numerical value and the many CQI of quantity to take takies.The probability of the PDCCH reception mistake appeared on fast fading channel is avoided to promote.
Based on above-mentioned flow process, after enhancing PDCCH scheduling switch is closed in base station, base station will no longer be selected take PDSCH Resource Block transmission DCI information according to CQI reported result.Return back to original scheme according to control area PDCCH transmission.
Particularly, the described base station statistics size that all CQI report within the cycle of presetting and numerical value; When arriving the described cycle, described base station selected numerical value and the many subband shared by CQI of quantity take, using the resource of described subband as the frequency band of bearing downlink control information DCI.And after confirming that when base station CQI information that described UE reports upgrades again, the CQI that after described UE reports and upgrades by described base station, the subframe of CQI information receives takies the starting point of resource as again upgrading scheduling DCI.If described base station determines that the user that described UE is corresponding carries out downstream data traffic scheduling in identical subframe, the Resource Block deduction that PDCCH takies when carrying out Resourse Distribute by described base station in advance.
For reaching above technical purpose, the invention allows for a kind of PDCCH controlling equipment, as shown in Figure 2, comprising:
Judge module 210, for judging whether strengthen physical downlink control channel PDCCH switch opens;
Scheduler module 220, for when the judged result of described judge module is for being, the subband selecting CQI maximum from each subband of terminal UE reporting channel quality designator CQI is as the resource of the frequency band of bearing downlink control information DCI, and front 5 PRB in the Physical Downlink Shared Channel PDSCH resource area started by described frequency band are as the frequency resource of the described DCI information of fixing carrying.
In concrete application scenarios, described judge module, also for judging whether described UE can carry out cycle subband CQI and report, and continues when judged result is for being to judge whether described enhancing PDCCH switch is opened.
In concrete application scenarios, also comprise: heavy update module, after the CQI information for reporting at the described UE of confirmation upgrades again, the CQI being reported by described UE the subframe of CQI information after upgrading to receive takies the starting point of resource as again upgrading scheduling DCI.
In concrete application scenarios, also comprise: deduction module, during for carrying out downstream data traffic scheduling the user determining that described UE is corresponding in identical subframe, the Resource Block deduction in advance PDCCH taken when carrying out Resourse Distribute.
In concrete application scenarios, described scheduler module, the size reported specifically for all CQI within the cycle of presetting and numerical value, and selecting the subband shared by numerical value and the many CQI of quantity to take, using the resource of described subband as the frequency band of bearing downlink control information DCI when arriving the described cycle.
By applying technical scheme of the present invention, base station is after judgement strengthens PDCCH switch opens, the subband selecting CQI maximum from each subband of terminal UE reporting channel quality designator CQI is as the resource of the frequency band of bearing downlink control information DCI, and front 5 PRB in the PDSCH resource area started by frequency band are as the fixing frequency resource carrying DCI information.Improve the success rate of depositing terminal reception PDCCH in an interference situation, reliable precondition is provided for correctly resolving PDSCH business datum, thus ensure that the quality of transfer of data of eating dishes without rice or wine, under equivalent environment, more original realization improves the throughput of user, and then ensure that the maximize system capacity of wireless communication system.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention can by hardware implementing, and the mode that also can add necessary general hardware platform by software realizes.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions and perform each method implementing described in scene of the present invention in order to make a computer equipment (can be personal computer, server, or the network equipment etc.).
It will be appreciated by those skilled in the art that accompanying drawing is a schematic diagram preferably implementing scene, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device implemented in scene can carry out being distributed in the device of enforcement scene according to implementing scene description, also can carry out respective change and being arranged in the one or more devices being different from this enforcement scene.The module of above-mentioned enforcement scene can merge into a module, also can split into multiple submodule further.
The invention described above sequence number, just to describing, does not represent the quality implementing scene.
Be only several concrete enforcement scene of the present invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (10)
1. a physical downlink control channel PDCCH dispatching method, is characterized in that, comprising:
Base station judges whether strengthen physical downlink control channel PDCCH switch opens;
If the determination result is YES, the described base station subband of selecting CQI maximum from each subband of terminal UE reporting channel quality designator CQI is as the resource of the frequency band of bearing downlink control information DCI, and front 5 PRB in the Physical Downlink Shared Channel PDSCH resource area started by described frequency band are as the frequency resource of the described DCI information of fixing carrying.
2. the method for claim 1, is characterized in that, before described base station judges whether strengthen physical downlink control channel PDCCH switch opens, also comprises:
Described base station judges whether described UE can carry out cycle subband CQI and report;
If so, then continue to judge whether described enhancing PDCCH switch is opened.
3. the method for claim 1, is characterized in that, front 5 PRB in the Physical Downlink Shared Channel PDSCH resource area started by described frequency band, as the frequency resource of the described DCI information of fixing carrying, also comprise:
After base station confirms that CQI information that described UE reports upgrades again, the CQI that after described UE reports and upgrades by described base station, the subframe of CQI information receives takies the starting point of resource as again upgrading scheduling DCI.
4. method as claimed in claim 3, is characterized in that, described base station described UE reported upgrade after the CQI that receives of the subframe of CQI information as again upgrading after scheduling DCI takies the starting point of resource, also comprise:
If described base station determines that the user that described UE is corresponding carries out downstream data traffic scheduling in identical subframe, the Resource Block deduction that PDCCH takies when carrying out Resourse Distribute by described base station in advance.
5. the method for claim 1, is characterized in that, the subband that base station selects CQI maximum from each subband of terminal UE reporting channel quality designator CQI, as the resource of the frequency band of bearing downlink control information DCI, is specially:
The described base station statistics size that all CQI report within the cycle of presetting and numerical value;
When arriving the described cycle, described base station selected numerical value and the many subband shared by CQI of quantity take, using the resource of described subband as the frequency band of bearing downlink control information DCI.
6. a PDCCH controlling equipment, is characterized in that, comprising:
Judge module, for judging whether strengthen physical downlink control channel PDCCH switch opens;
Scheduler module, for when the judged result of described judge module is for being, the subband selecting CQI maximum from each subband of terminal UE reporting channel quality designator CQI is as the resource of the frequency band of bearing downlink control information DCI, and front 5 PRB in the Physical Downlink Shared Channel PDSCH resource area started by described frequency band are as the frequency resource of the described DCI information of fixing carrying.
7. equipment as claimed in claim 6, is characterized in that,
Described judge module, also for judging whether described UE can carry out cycle subband CQI and report, and continues when judged result is for being to judge whether described enhancing PDCCH switch is opened.
8. equipment as claimed in claim 6, is characterized in that, also comprise:
Heavy update module, after the CQI information for reporting at the described UE of confirmation upgrades again, the CQI being reported by described UE the subframe of CQI information after upgrading to receive takies the starting point of resource as again upgrading scheduling DCI.
9. equipment as claimed in claim 8, is characterized in that, also comprise:
Deduction module, during for carrying out downstream data traffic scheduling the user determining that described UE is corresponding in identical subframe, the Resource Block deduction in advance PDCCH taken when carrying out Resourse Distribute.
10. equipment as claimed in claim 6, is characterized in that,
Described scheduler module, the size reported specifically for all CQI within the cycle of presetting and numerical value, and selecting the subband shared by numerical value and the many CQI of quantity to take, using the resource of described subband as the frequency band of bearing downlink control information DCI when arriving the described cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410515953.1A CN104284435B (en) | 2014-09-29 | 2014-09-29 | A kind of PDCCH dispatching methods and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410515953.1A CN104284435B (en) | 2014-09-29 | 2014-09-29 | A kind of PDCCH dispatching methods and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104284435A true CN104284435A (en) | 2015-01-14 |
| CN104284435B CN104284435B (en) | 2018-02-02 |
Family
ID=52258784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410515953.1A Active CN104284435B (en) | 2014-09-29 | 2014-09-29 | A kind of PDCCH dispatching methods and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104284435B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107567097A (en) * | 2016-06-30 | 2018-01-09 | 普天信息技术有限公司 | A kind of resource allocation methods of down control channel |
| CN109076384A (en) * | 2018-06-29 | 2018-12-21 | 北京小米移动软件有限公司 | Information transmission, method of reseptance and device, base station and user equipment |
| CN111132356A (en) * | 2018-10-30 | 2020-05-08 | 普天信息技术有限公司 | Scheduling control method and device for PDCCH (physical Downlink control channel) and PDSCH (physical Downlink shared channel) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1845678B1 (en) * | 2006-04-14 | 2009-05-13 | Mitsubishi Electric R&D Centre Europe B.V. | Method for obtaining information representative of the channel quality indication on at least one frequency subband |
| CN101958767A (en) * | 2010-10-22 | 2011-01-26 | 北京北方烽火科技有限公司 | Frequency domain resource scheduling method and device |
| CN102387587A (en) * | 2010-08-30 | 2012-03-21 | 电信科学技术研究院 | Resource allocation method and device |
| CN102958178A (en) * | 2012-11-30 | 2013-03-06 | 大唐移动通信设备有限公司 | Frequency selectivity scheduling method, continuous quality improvement (CQI) reporting method, device and system |
| WO2013157899A1 (en) * | 2012-04-20 | 2013-10-24 | 엘지전자 주식회사 | Method for reporting channel state, and apparatus therefor |
| CN103391625A (en) * | 2012-05-11 | 2013-11-13 | 上海贝尔股份有限公司 | Method for distributing ePDCCHs (enhanced physical downlink control channels) in wireless communication network |
-
2014
- 2014-09-29 CN CN201410515953.1A patent/CN104284435B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1845678B1 (en) * | 2006-04-14 | 2009-05-13 | Mitsubishi Electric R&D Centre Europe B.V. | Method for obtaining information representative of the channel quality indication on at least one frequency subband |
| CN102387587A (en) * | 2010-08-30 | 2012-03-21 | 电信科学技术研究院 | Resource allocation method and device |
| CN101958767A (en) * | 2010-10-22 | 2011-01-26 | 北京北方烽火科技有限公司 | Frequency domain resource scheduling method and device |
| WO2013157899A1 (en) * | 2012-04-20 | 2013-10-24 | 엘지전자 주식회사 | Method for reporting channel state, and apparatus therefor |
| CN103391625A (en) * | 2012-05-11 | 2013-11-13 | 上海贝尔股份有限公司 | Method for distributing ePDCCHs (enhanced physical downlink control channels) in wireless communication network |
| CN102958178A (en) * | 2012-11-30 | 2013-03-06 | 大唐移动通信设备有限公司 | Frequency selectivity scheduling method, continuous quality improvement (CQI) reporting method, device and system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107567097A (en) * | 2016-06-30 | 2018-01-09 | 普天信息技术有限公司 | A kind of resource allocation methods of down control channel |
| CN107567097B (en) * | 2016-06-30 | 2020-06-12 | 普天信息技术有限公司 | Resource allocation method of downlink control channel |
| CN109076384A (en) * | 2018-06-29 | 2018-12-21 | 北京小米移动软件有限公司 | Information transmission, method of reseptance and device, base station and user equipment |
| WO2020000446A1 (en) * | 2018-06-29 | 2020-01-02 | 北京小米移动软件有限公司 | Method and device for information transmission and reception, base station, and user equipment |
| CN109076384B (en) * | 2018-06-29 | 2022-04-15 | 北京小米移动软件有限公司 | Information transmission and receiving method and device, base station and user equipment |
| US11678342B2 (en) | 2018-06-29 | 2023-06-13 | Beijing Xiaomi Mobile Software Co., Ltd. | Methods and apparatuses for transmitting information and receiving information, base station and user equipment |
| CN111132356A (en) * | 2018-10-30 | 2020-05-08 | 普天信息技术有限公司 | Scheduling control method and device for PDCCH (physical Downlink control channel) and PDSCH (physical Downlink shared channel) |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104284435B (en) | 2018-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103069906B (en) | Use the method based on the resource area transmitting data of competition and equipment in the wireless network | |
| KR101443317B1 (en) | Component carrier configuration | |
| US8514703B2 (en) | Scheduling of logical channels in a wireless communication system | |
| EP3530049B1 (en) | Method and appratus for allocating resources for wireless networks | |
| CN110278062A (en) | Resource instruction determines method and device | |
| CN105050189A (en) | Wireless resource scheduling method and relevant equipment | |
| US10959225B2 (en) | Techniques for handling semi-persistent scheduling collisions for wireless networks | |
| CN110249572A (en) | Method and apparatus for short PDCCH operation | |
| WO2016171716A1 (en) | Flexible quality of service for inter-base station handovers within wireless network | |
| US9042280B2 (en) | Methods and apparatus for half duplex scheduling | |
| US20160278111A1 (en) | Service scheduling method and device | |
| CN103687025A (en) | Resource allocation method used for LTE system | |
| CN108293245B (en) | Data communication method, terminal equipment and network equipment | |
| CN111316718B (en) | Carrier aggregation for sidelink communications | |
| CN108024341B (en) | scheduling method, terminal and base station | |
| EP2993936A1 (en) | Adaptive uplink coordinated multipoint communication for backhaul | |
| CN109429259A (en) | A kind of descending channel quality reporting method and user terminal | |
| CN104284435A (en) | PDCCH dispatching method and equipment | |
| US20130148588A1 (en) | Scheduler and scheduling method for carrier aggregated communications | |
| CN106550460A (en) | Uplink dispatch method and equipment are carried out in a kind of asymmetric carrier aggregation | |
| CN105515718A (en) | Multi-service control channel transmitting method and apparatus | |
| CN106416400A (en) | A method, apparatus and system | |
| EP3721669B1 (en) | Downlink scheduling of terminal devices | |
| EP3516915A1 (en) | Flexible resource usage between scheduling-based and contention-based resource access for wireless networks | |
| EP3198813B1 (en) | Method, apparatus and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |