CN101616456A - The method and apparatus of unified scheduling in the up-link power control - Google Patents
The method and apparatus of unified scheduling in the up-link power control Download PDFInfo
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- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
In order to use identical as far as possible schedule information to unify scheduling to all user terminals (UT) through grouping, the present invention proposes the method for unified scheduling in a kind of up-link power control, may further comprise the steps: the grouping strategy that a plurality of user terminals are set; According to grouping strategy a plurality of user terminals are divided into groups, each group is unified scheduling; The Resource Block size that is provided for communicating by letter for unified schedule information corresponding to each group; User terminal in each group sends corresponding unified schedule information.In addition, the present invention also provides the device of unified scheduling in a kind of up-link power control.Thereby, under the prerequisite that does not influence the up-link power control efficiency,, effectively reduce the expense of system by the minimizing of schedule information.
Description
Technical field
The present invention relates to wireless communication field, more specifically, relate to the method and apparatus of unified scheduling in a kind of up-link power control.
Background technology
In follow-on broadband wireless communication network, solving in the cordless communication network presence of intercell interference becomes a key factor that improves inter-cell user terminal (UT) throughput and average user terminal (UT) throughput and is faced with formidable challenges.
At present, in IEEE 802.16j, IMT-Advanced, WINNER, all propose to adopt methods such as interference randomization, interference coordination, interference eliminated to solve the problem of presence of intercell interference.Third generation partner program (3rd Generation Partnership Project, 3GPP) Long Term Evolution (Long Term Evolution, LTE) proposed in to use and had base station (BaseStation, BS) method of the Inter-Cell Interference Coordination of cooperation reduces interference between, and up-link power control is one of key technology wherein.Adjust for each user terminal (UT) in the up-link power control among the current 3GPP LTE, the parameter that wherein needs to adjust comprises a lot, such as, road loss compensation factor, power excursion or the like, when user terminal in the system (UT) number is very big, can cause bigger overhead.
Among the present invention, provide a kind of and in up-link power control, passed through channel quality information (Channel Quality Information, CQI), service quality (Quality of Service, QoS), service priority message produces user terminal (the User Terminal of the control signaling with the control of same uplink power, UT) grouping, use identical as far as possible schedule information to unify scheduling to all user terminals (UT) in dividing into groups, under the prerequisite that does not influence the up-link power control efficiency, by the minimizing of schedule information, effectively reduce the expense of system.
Summary of the invention
In order to use identical as far as possible schedule information to unify scheduling to all user terminals (UT) through grouping, the present invention proposes the method for unified scheduling in a kind of up-link power control, may further comprise the steps: the grouping strategy that a plurality of user terminals are set; According to grouping strategy a plurality of user terminals are divided into groups, each group is unified scheduling; The Resource Block size that is provided for communicating by letter for unified schedule information corresponding to each group; User terminal in each group sends corresponding unified schedule information.
Wherein, the described step that the grouping strategy of a plurality of user terminals is set comprises: set to divide a set condition, with the user terminal branch that will have identical or close parameter in same group.
Wherein, described setting divide set condition comprise in the following condition one of at least: channel quality information CQI comparison threshold value is set; The service quality QoS comparison threshold value is set; And setting is corresponding to the service priority of a plurality of user terminals.
Wherein, described setting divides set condition to comprise: channel quality information CQI comparison threshold value is set; The service quality QoS comparison threshold value is set; And setting is corresponding to the service priority of a plurality of user terminals.
Wherein, describedly a plurality of user terminals are divided into groups to comprise: a plurality of user terminals are divided into a plurality of CQI set according to the CQI comparison threshold value according to grouping strategy; According to the QoS comparison threshold value user terminal in each CQI set is divided into a plurality of QoS subclass; And the user terminal in each QoS subclass is divided into a plurality of service priority subclass according to service priority.
Wherein, according to the user terminal in the Resource Block size Selection CQI set, to send corresponding unified schedule information to selected user terminal.
Wherein, when unified schedule information with at the shared size sum of the distinctive schedule information of selected user terminal during greater than the Resource Block size, the user terminal of the part subclass from the CQI set in a plurality of service priority subclass of deletion.
Wherein, when unifying the shared size of schedule information and distinctive schedule information greater than the Resource Block size, the user terminal of the part subclass from the CQI set in a plurality of QoS subclass of deletion.
Wherein, when unifying the shared size of schedule information and distinctive schedule information, revise the Resource Block size, and again amended Resource Block size and Resource Block size are compared greater than the Resource Block size.
Wherein, when unifying the shared size of schedule information and distinctive schedule information, carry out size and fill less than the Resource Block size.
Wherein, send in the step of corresponding unified schedule information at the user terminal in each group, also comprise: will unify schedule information and merge into the merging schedule information, will unify schedule information and send to each specific user terminal with merging schedule information at the distinctive schedule information of each specific user terminal.
In addition, the invention allows for the device of unified scheduling in a kind of up-link power control, comprising: grouping strategy is provided with module, is used to be provided with the grouping strategy of a plurality of user terminals; Grouping module is used for according to grouping strategy a plurality of user terminals being divided into groups, each group is unified scheduling; The Resource Block size is provided with module, the Resource Block size that is used to the unified schedule information corresponding to each group to be provided for communicating by letter; Sending module is used for sending corresponding unified schedule information to the user terminal of each group.
The present invention passes through channel quality information (ChannelQuality Information in up-link power control, CQI), service quality (Quality of Service, QoS), service priority message produces user terminal (the User Terminal of the control signaling with the control of same uplink power, UT) grouping, use identical as far as possible schedule information to unify scheduling to all user terminals (UT) in dividing into groups, under the prerequisite that does not influence the up-link power control efficiency, by the minimizing of schedule information, effectively reduce the expense of system.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute limitation of the invention.In the accompanying drawings:
Fig. 1 is the first half according to the flow chart of the method for unified scheduling in the up-link power control of the present invention.
Fig. 2 is according to the latter half of the flow chart of the method for unified scheduling in the up-link power control of the present invention (being difficult to show whole flow charts in one page, so divide two figure to show).
Fig. 3 is the block diagram according to the device of unified scheduling in the up-link power control of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The present invention relates to cordless communication network, relate in particular to a kind of user terminal (UT) grouping that in up-link power control, produces control signaling with the control of same uplink power by channel quality channel (CQI), service quality (QoS), service priority message, use identical as far as possible schedule information to unify scheduling to all user terminals (UT) in dividing into groups, under the prerequisite that does not influence the up-link power control efficiency, by the minimizing of schedule information, effectively reduce the expense of system.
Fig. 1 is that concrete implementation step is as follows according to the flow chart of the method for unified scheduling in the up-link power control of the present invention:
Step 101: base station (BS) is provided with channel quality information (CQI) comparison threshold value, and initialization;
Step 102: base station (BS) is provided with service quality (QoS) comparison threshold value, and initialization;
Step 103: base station (BS) is provided with service priority;
Step 104: base station (BS) is divided into the set of channel quality information (CQI) homogeneity according to channel quality information (CQI) comparison threshold value with user terminal (UT);
Step 105: base station (BS) classifies to the user terminal (UT) in the set of each channel quality information (CQI) homogeneity according to service quality (QoS) sign, generates user terminal (UT) service quality (QoS) homogeneity subclass;
Step 106: base station (BS) classifies to service quality (QoS) homogeneity subclass according to service priority, forms service priority homogeneity subclass;
Step 107: base station (BS) is provided with the Resource Block size that transmits unified schedule information;
Step 108: base station (BS) is according to the user terminal (UT) in unified schedule information Resource Block size Selection channel quality information (CQI) the homogeneity set.
Below as shown in Figure 2, step 109 when the shared Resource Block size of the unified schedule information of the user terminal of selecting (UT) and distinctive schedule information during greater than the Resource Block size that sets in advance, forwards step 110 to, otherwise, forward step 114 to;
Step 110: base station (BS) user terminal (UT) of deletion service priority homogeneity subclass from channel quality information (CQI) homogeneity set;
Step 111: the shared Resource Block size of the unified schedule information of the user terminal of selection (UT) and distinctive schedule information forwards step 112 to, otherwise forwards step 114 to during greater than the Resource Block size that sets in advance;
Step 112: base station (BS) be the user terminal (UT) in the set of deletion service quality (QoS) homogeneity from the set of channel quality information (CQI) homogeneity;
Step 113: the shared Resource Block size of the unified schedule information of the user terminal of selection (UT) and distinctive schedule information forwards step 115 to, otherwise forwards step 114 to during greater than the Resource Block size that sets in advance;
Step 114: base station (BS) revises the unified scheduling resource piece size that sets in advance, and returns step 8;
Step 115: base station (BS) fills less than the department of the Resource Block size that sets in advance the unified schedule information and the shared Resource Block of distinctive schedule information of the user terminal (UT) of selection;
Step 116: base station (BS) merges the final unified schedule information of formation to the unified schedule information and the distinctive schedule information of the user terminal (UT) of selection;
Step 117: base station (BS) notifies the unified schedule information of the user terminal (UT) of all unified scheduling.
As shown in Figure 3, for unifying the block diagram of the device of scheduling in the up-link power control according to the present invention.Wherein, comprising: grouping strategy is provided with module, is used to be provided with the grouping strategy of a plurality of user terminals; Grouping module is used for according to grouping strategy to a plurality of user terminals divide into groups (group 1, group 2), each group is unified scheduling; The Resource Block size is provided with module, the Resource Block size that is used to the unified schedule information corresponding to each group to be provided for communicating by letter; Sending module is used for sending corresponding unified schedule information to the user terminal of each group.
Adopt the method for the invention and device, compared with prior art, in up-link power control, produce user terminal (UT) grouping of control signaling with the control of same uplink power by channel quality information (CQI), service quality (QoS), service priority message, use identical as far as possible schedule information to unify scheduling to all user terminals (UT) in dividing into groups, under the prerequisite that does not influence the up-link power control efficiency, by the minimizing of schedule information, effectively reduce the expense of system.
Setting by channel quality information (CQI) homogeneity user terminal (UT) set, service quality (QoS) homogeneity user terminal (UT) subclass, service priority homogeneity user terminal (UT) subclass, the user terminal (UT) of having guaranteed each unified scheduling has identical characteristic, helps improving the efficient of the unified scheduling of up-link power control.
The unified scheduling resource piece size that sets in advance its objective is in order to limit user terminal (UT) number of unified scheduling, prevents that user terminal (UT) number of unified scheduling is too much, brings bigger overhead.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. the method for unified scheduling is characterized in that during a up-link power was controlled, and may further comprise the steps:
The grouping strategy of a plurality of user terminals is set;
According to described grouping strategy described a plurality of user terminals are divided into groups, each group is unified scheduling;
The Resource Block size that is provided for communicating by letter for unified schedule information corresponding to described each group;
User terminal in described each group sends corresponding unified schedule information.
2. method according to claim 1 is characterized in that, the described step that the grouping strategy of a plurality of user terminals is set comprises:
Set to divide a set condition, with the user terminal branch that will have identical or close parameter in same group.
3. method according to claim 2 is characterized in that, described setting divide set condition comprise in the following condition one of at least:
Channel quality information CQI comparison threshold value is set;
The service quality QoS comparison threshold value is set; And
Setting is corresponding to the service priority of described a plurality of user terminals.
4. method according to claim 2 is characterized in that, described setting divides set condition to comprise:
Channel quality information CQI comparison threshold value is set;
The service quality QoS comparison threshold value is set; And
Setting is corresponding to the service priority of described a plurality of user terminals.
5. method according to claim 4 is characterized in that, describedly according to described grouping strategy described a plurality of user terminals is divided into groups to comprise:
According to described CQI comparison threshold value described a plurality of user terminals are divided into a plurality of CQI set;
According to described QoS comparison threshold value the user terminal in each described CQI set is divided into a plurality of QoS subclass; And
According to described service priority the user terminal in each described QoS subclass is divided into a plurality of service priority subclass.
6. method according to claim 5 is characterized in that:
According to the user terminal in the described Resource Block size Selection CQI set, to send corresponding unified schedule information to selected user terminal.
7. method according to claim 6 is characterized in that:
When described unified schedule information with at the shared size sum of the distinctive schedule information of selected user terminal during greater than described Resource Block size, the user terminal of the part subclass from described CQI set in a plurality of service priority subclass of deletion.
8. method according to claim 6 is characterized in that:
When the shared size of described unified schedule information and distinctive schedule information during greater than described Resource Block size, the user terminal of the part subclass from described CQI set in the described a plurality of QoS subclass of deletion.
9. method according to claim 6 is characterized in that:
When the shared size of described unified schedule information and distinctive schedule information during, revise described Resource Block size, and again amended Resource Block size and described Resource Block size are compared greater than described Resource Block size.
10. method according to claim 6 is characterized in that:
When the shared size of described unified schedule information and distinctive schedule information during, carry out size and fill less than described Resource Block size.
11., it is characterized in that according to the described method of above arbitrary claim, send in the step of corresponding unified schedule information at described user terminal in described each group, also comprise:
With described unified schedule information with merge into the merging schedule information at the distinctive schedule information of each specific user terminal,
Described unified schedule information is sent to described each specific user terminal with described merging schedule information.
12. the unified device of dispatching in the up-link power control is characterized in that, comprising:
Grouping strategy is provided with module, is used to be provided with the grouping strategy of a plurality of user terminals;
Grouping module is used for according to described grouping strategy described a plurality of user terminals being divided into groups, each group is unified scheduling;
The Resource Block size is provided with module, the Resource Block size that is used to the unified schedule information corresponding to described each group to be provided for communicating by letter;
Sending module is used for sending corresponding unified schedule information to the user terminal of described each group.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910160827A CN101616456B (en) | 2009-07-24 | 2009-07-24 | Method and device for uniform scheduling in uplink power control |
| PCT/CN2009/075804 WO2011009272A1 (en) | 2009-07-24 | 2009-12-21 | Uniform schedule method and device in uplink power control |
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| CN200910160827A CN101616456B (en) | 2009-07-24 | 2009-07-24 | Method and device for uniform scheduling in uplink power control |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102378386A (en) * | 2011-12-14 | 2012-03-14 | 吉林大学 | Wireless resource scheduling method of LTE (Long Term Evolution) uplink |
| CN104125588A (en) * | 2014-08-13 | 2014-10-29 | 武汉邮电科学研究院 | ULPC (Uplink Power Control) method and ULPC device for LTE (Long Term Evolution) system |
| CN107005298A (en) * | 2014-12-02 | 2017-08-01 | Lg 电子株式会社 | The method and apparatus for sending control channel is shaped based on mixed-beam in a wireless communication system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US9220070B2 (en) * | 2012-11-05 | 2015-12-22 | Google Technology Holdings LLC | Method and system for managing transmit power on a wireless communication network |
| CN110012456B (en) * | 2019-02-21 | 2022-03-04 | 广州广哈通信股份有限公司 | Method and device for dynamically switching scheduling group affiliation relationship of scheduling terminal |
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| WO2007036073A1 (en) * | 2005-09-30 | 2007-04-05 | Huawei Technologies Co., Ltd. | Resource allocation method for mimo-ofdm of multi-user access systems |
| JP4786340B2 (en) * | 2005-12-28 | 2011-10-05 | 株式会社エヌ・ティ・ティ・ドコモ | Base station apparatus and packet scheduling method |
| CN101034923A (en) * | 2006-03-07 | 2007-09-12 | 松下电器产业株式会社 | Packet scheduling method and system for multi-antenna radio communication system |
| CN101039505A (en) * | 2006-03-15 | 2007-09-19 | 朗迅科技公司 | Method for dispatching data transmission of multi-carrier wireless communication system |
| CN101175308B (en) * | 2006-11-01 | 2011-11-09 | 株式会社Ntt都科摩 | Ascending link resource scheduling method in honeycomb communication system |
| KR100849327B1 (en) * | 2007-02-09 | 2008-07-29 | 삼성전자주식회사 | Group scheduling method and apparatus to improve radio resource efficiency and fairness under distributed antenna system with frequency reuse and joint power control |
| CN101459956B (en) * | 2007-12-10 | 2012-01-11 | 电信科学技术研究院 | Load control method and apparatus |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102378386A (en) * | 2011-12-14 | 2012-03-14 | 吉林大学 | Wireless resource scheduling method of LTE (Long Term Evolution) uplink |
| CN102378386B (en) * | 2011-12-14 | 2014-01-08 | 吉林大学 | Wireless resource scheduling method of LTE (Long Term Evolution) uplink |
| CN104125588A (en) * | 2014-08-13 | 2014-10-29 | 武汉邮电科学研究院 | ULPC (Uplink Power Control) method and ULPC device for LTE (Long Term Evolution) system |
| CN104125588B (en) * | 2014-08-13 | 2017-09-29 | 武汉邮电科学研究院 | A kind of method and device of LTE system uplink power control |
| CN107005298A (en) * | 2014-12-02 | 2017-08-01 | Lg 电子株式会社 | The method and apparatus for sending control channel is shaped based on mixed-beam in a wireless communication system |
| CN107005298B (en) * | 2014-12-02 | 2021-05-14 | Lg 电子株式会社 | Method and apparatus for transmitting control channel based on hybrid beamforming in wireless communication system |
Also Published As
| Publication number | Publication date |
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| WO2011009272A1 (en) | 2011-01-27 |
| WO2011009272A8 (en) | 2011-03-03 |
| CN101616456B (en) | 2012-09-05 |
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