CN101772143B - Power configuration method, power configuration device and power configuration system for cell portion - Google Patents
Power configuration method, power configuration device and power configuration system for cell portion Download PDFInfo
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Abstract
The invention discloses a power configuration method, a power configuration device and a power configuration system for a cell portion. The method comprises that: a Node B receives power configuration message from a base station controller, wherein the power configuration message carries maximum downlink transmission power of each cell portion which needs to perform downlink transmission power control in a cell of the Node B; and the Node B performs downlink transmission power control on the cell portion of the cell according to the power configuration message. By configuring the downlink transmission power of each cell portion and maintaining the practical transmission power below the configured transmission power in a subsequent signal transmitting process, the problem that the cell portion cannot be covered by using an intelligent antenna in a TDD mode in the related technology can be solved, and the power using consistency between an RNC and the Node B is ensured so as to effectively improve the coverage performance of the intelligent antenna in the TDD mode.
Description
Technical field
The present invention relates to the communications field, and especially, relate to a kind of power distribution method, device, and system of cell portion.
Background technology
FDD (Frequency Division Duplex; Abbreviate FDD as) be a kind of dual-mode commonly used; When under fdd mode, operating, need two independently channels, a channel is used for to transmitting data; One other channel is used for transmitting data downwards, and two interchannels have the certain protection frequency.At present, for performance and the application scenario that promotes smart antenna, the notion of cell portion (Cell Portion abbreviates CP as) has been proposed further.
According to present regulation; Cell Portion is a semi-static geographic area of sub-district; Differentiating uplink and downlink not; Node B (Node B) can report this regional measurement result to radio network controller (RadioNetwork Controller abbreviates RNC as), and Cell Portion sign (promptly; ID) can in a sub-district, can identify a Cell Portion (concrete identification method can with reference to of the definition of third generation partner program (3rdGeneration Partnership Project abbreviates 3GPP as) agreement 25.887R6 version) uniquely about Cell Portion.
And in fdd mode, different Cell Portion can share same group of smart antenna in the sub-district.Therefore, the Cell Portion of FDD definition is exactly the interior overlay area of angular range of the certain angle of arrival of smart antenna (Angleof Arrival abbreviates AOA as) under time division duplex (TimeDivision Duplex abbreviates TDD as).
In tdd mode, smart antenna blocks under the situation in nothing can reach very high certainty of measurement.But in the city or indoor, because the existence of reflection, multipath phenomenon, the measurement result of AOA can not truly reflect the direction at subscriber equipment (User Equipment abbreviates UE as) place, sometimes even can obtain and the antipodal result of actual conditions.This obviously can influence the effect of cell portion in tdd mode.Under tdd mode, use one group of antenna region covered to be defined as a cell portion.Sub-district under the tdd mode not only is fit to outdoor, also can solve simultaneously the scene that covering is united in indoor covering, indoor and outdoor.
Yet the power capability of every group of antenna, covering demand are all variant, if antenna sets uses unified configuration can't satisfy the different districts subregion for the demand that covers.At present, to how under tdd mode, using smart antenna that cell portion is realized covering, effective solution is not proposed as yet.
Summary of the invention
Consider and under tdd mode, to utilize the problem that smart antenna realize to cover cell portion in the correlation technique and make the present invention that for this reason, main purpose of the present invention is to provide a kind of power distribution method, device, and system of cell portion.
According to an aspect of the present invention; A kind of power distribution method of cell portion is provided; Be used for comprising that base station controller, Node B are that the wireless communication system of Node B is realized TDD mode power configuration down, wherein, the sub-district that Node B belongs to has at least one cell portion.
Power distribution method according to cell portion of the present invention comprises: Node B receives the power configuration from base station controller; Wherein, carry in the power configuration that each need carry out the maximum downstream transmitting power of the cell portion of down transmitting power control in the sub-district, Node B place; Node B carries out down transmitting power control according to power configuration to the cell portion of sub-district.
Particularly; The processing that Node B carries out down transmitting power control can comprise: for each cell portion that need carry out down transmitting power control, its downlink gross power is maintained the maximum downstream transmitting power that is less than or equal to this cell portion that carries in the power configuration.
Preferably, above-mentioned power configuration can comprise following one of at least: request message is set up in the sub-district, cell re-configuration is put request message.
Further; Under power configuration is used for situation that the down transmitting power to the common signal channel of the cell portion of sub-district is configured, power configuration further comprise following one of at least: Common transport channel is set up message, Common transport channel reconfiguration request message.
Further, under power configuration was used for situation that the maximum downstream transmitting power to the shared channel of the cell portion of sub-district is configured, power configuration further comprised the Physical Shared Channel reconfiguration request message.
Preferably, above-mentioned power configuration comprises that sign and each of the cell portion that each need carry out down transmitting power control need carry out the down transmitting power value of the cell portion of down transmitting power control.
According to a further aspect in the invention; A kind of power configuration device of cell portion is provided; This device is arranged at Node B; Be used for realizing TDD mode power configuration down at the wireless communication system that comprises the base station controller under Node B and the Node B, wherein, the sub-district that Node B belongs to has at least one cell portion.
Power configuration device according to cell portion of the present invention comprises: receiver module; Be used to receive power configuration from base station controller; Wherein, carry in the power configuration that each need carry out the down transmitting power of the cell portion of down transmitting power control in the sub-district, Node B place; Control module is used for according to power configuration the cell portion of sub-district being carried out down transmitting power control.
Wherein, the downlink gross power of the cell portion of control module through each need being carried out down transmitting power control maintains the maximum downstream transmitting power that is less than or equal to this cell portion that carries in the power configuration and carries out down transmitting power control.
In accordance with a further aspect of the present invention; A kind of power configuration system of cell portion is provided, and this system comprises the base station controller under Node B and the Node B, is used to realize the power configuration under the TDD mode; Wherein, the sub-district at Node B place has at least one cell portion.
In power configuration system according to cell portion of the present invention; Base station controller is used for disposing sub-district, Node B place, and each need carry out the down transmitting power of the cell portion of down transmitting power control, and configuration result is sent to NodeB through power configuration; Node B is used to receive the power configuration from base station controller, and is used for according to power configuration the cell portion of sub-district being carried out down transmitting power control.
By means of technique scheme of the present invention; Down transmitting power through to each cell portion is configured; And in follow-up signal emission process, actual emission power is maintained below the transmitting power of configuration; Can solve and under tdd mode, to utilize the smart antenna problem that realization covers to cell portion in the correlation technique, guarantee the consistency that RNC and Node B use for power, thereby effectively improved the covering performance of smart antenna under the tdd mode.
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 improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the power distribution method of the cell portion of the inventive method embodiment;
Fig. 2 is the flow chart according to the processing instance 1 of the power distribution method of the cell portion of the inventive method embodiment;
Fig. 3 is the flow chart according to the processing instance 2 of the power distribution method of the cell portion of the inventive method embodiment;
Fig. 4 is the flow chart according to the processing instance 3 of the power distribution method of the cell portion of the inventive method embodiment;
Fig. 5 is the block diagram of power configuration system of the cell portion of system according to the invention embodiment;
Fig. 6 is the block diagram according to the power configuration device of the cell portion of apparatus of the present invention embodiment.
Embodiment
Functional overview
Cell portion is realized the problem that covers to can't under tdd mode, utilizing smart antenna in the correlation technique; The present invention is through carrying out the configuration of transmitting power to each cell portion (hereinafter to be referred as CP); And configuration result notified to Node B (Node B); Carry out the emission of signal by Node B according to the power that disposes, can effectively improve the covering performance of smart antenna under the tdd mode.
Method embodiment
In the present embodiment; The power distribution method of a kind of CP is provided; Be used for realizing the power configuration under the tdd mode that wherein, the sub-district at this Node B place has at least one CP at the wireless communication system that comprises RNC, Node B (this Node B is under the jurisdiction of this RNC).
In order to make Node B can carry out the control of down transmitting power; At first need optimize the factors such as downlink ability that needs, each needs carry out the CP of down transmitting power control according to real network and confirm that each needs carries out the maximum downstream transmitting power of the CP of down transmitting power control by radio network controller; And construct power configuration according to the result who confirms; Carried the sign of each CP that need control in this message, and the maximum downstream transmission power level of corresponding CP.
As shown in Figure 1, comprise step S102 and step S104 according to the power distribution method of the CP of present embodiment.As shown in Figure 1, concrete processing procedure is following:
In step S102, Node B receives the power configuration from RNC, wherein, carries in the power configuration that each need carry out the maximum downstream transmitting power of the CP of down transmitting power control in the sub-district, Node B place.
In step S104, Node B carries out down transmitting power control according to power configuration to the CP of sub-district.
Particularly; In step S104; When carrying out follow-up signal emission; For each CP that need carry out down transmitting power control, Node B needs the downlink gross power of this CP is maintained the maximum downstream transmitting power (that is total down transmitting power of each cell portion) that is less than or equal to this cell portion that carries in the power configuration.Wherein, power configuration can comprise one of following: request message is set up in the sub-district, cell re-configuration is put request message.
In practical application, usually also need the down transmitting power (can be a fixed value) or the maximum downstream transmitting power of shared channel of the common signal channel of the CP in the sub-district be configured.Wherein, Common signal channel is being carried out under the situation of down transmitting power control, power configuration also comprise following one of at least: Common transport channel is set up message (COMMON TRANSPORT CHANNEL SETUP REQUEST), Common transport channel reconfiguration request message (COMMON TRANSPORT CHANNELRECONFIGURATION REQUEST); Shared channel is being carried out under the situation of down transmitting power control, power configuration also comprise following one of at least: Physical Shared Channel reconfiguration request message (PHYSICAL SHARED CHANNELRECONFIGURATION REQUEST).
Like this, Node B just can use the Configuration Values constant power emission of this CP or carry out downlink with the power that is no more than this Configuration Values at common signal channel among each Cell Portion or shared channel.
Through above-mentioned processing, can solve and can't under tdd mode, utilize the smart antenna problem that realization covers to cell portion in the correlation technique, guaranteed the consistency that RNC and Node B use for power.
Present invention is described will to combine concrete processing instance below.
In the illustrating below, suppose to comprise in the sub-district 3 CP, that is, comprise CellPortion 1 (abbreviating CP1 as), Cell Portion 2 (abbreviating CP2 as) and Cell Portion3 (abbreviating CP3 as).
Fig. 2 is the flow chart according to the processing instance one of the power distribution method of the CP of the inventive method embodiment.In this example, RNC sets up request message with the sub-district and sends to Node B as power configuration.As shown in Figure 2, in this example, specifically can comprise following processing:
Step 201, RNC sends the sub-district to Node B and sets up request, and its allocating power is:
CP1, descending maximum transmission power is configured to 27dBm;
CP2, descending maximum transmission power is configured to 27dBm;
CP3, descending maximum transmission power is configured to 30dBm;
Step 202, Node B receives that the sub-district sets up request message, the current ability of each CP is in the sub-district:
CP1, descending maximum transmission power ability is 28dBm;
CP2, descending maximum transmission power ability is 29dBm;
CP3, descending maximum transmission power ability is 30dBm;
Node B just can make each Cell Portion down transmitting power at any time defer to following constraint:
CP1, descending maximum transmission power sum is no more than 27dBm;
CP2, descending maximum transmission power sum is no more than 27dBm;
CP3, descending maximum transmission power sum is no more than 30dBm;
Step 203, Node B sends the sub-district to RNC and sets up successful response message, that is to say, and power configuration is accomplished.
Fig. 3 is the flow chart according to the processing instance 2 of the power distribution method of the CP of the inventive method embodiment.In this example, RNC puts request message with cell re-configuration and sends to Node B as power configuration.As shown in Figure 3, in this example, specifically can comprise following processing:
Step 301, RNC sends cell re-configuration to Node B and puts request message, and its power configuration is:
CP1, Primary Common Control Physical Channel (Primary Common Control PhysicalChannel abbreviates PCCPCH as) power is 25dBm;
CP2, PCCPCH power are 25dBm;
CP3, PCCPCH power are 28dBm;
Step 302, Node B receives that cell re-configuration puts request message, preserves the PCCPCH power configuration of each CellPortion, the PCCPCH channel of each Cell Portion is with the power emission of configuration;
Step 303, Node B sends cell re-configuration to RNC and is set to the merit response message, accomplishes power configuration.
Instance 3
Fig. 4 is the flow chart according to the processing instance 3 of the power distribution method of the CP of the inventive method embodiment.In this example, RNC will send common signal channel and set up request message and send to Node B as power configuration.As shown in Figure 4, in this example, specifically can comprise following processing:
Step 401:RNC sends common signal channel to Node B and sets up request message, and down transmitting power is configured to:
CP1, Secondary Common Control Physical Channel (Secondary Common ControlPhysical Channel abbreviates SCCPCH as) power is 0dB;
CP2, SCCPCH power are 1dB;
CP3, SCCPCH power are 0dB;
In above-mentioned steps 401, PCCPCH power can be configured according to step 301 among Fig. 3 to the configuration mode in 302.
After step 402:Node B receives that common signal channel is set up request message, calculate the power of SCCPCH among each Cell Portion:
CP1, SCCPCH power are 25dBm (25+0);
CP2, SCCPCH power are 26dBm (25+1);
CP3, SCCPCH power are 28dBm (28+0);
Step 403, Node B sends common signal channel to RNC and reshuffles success response message.
Above-mentioned processing by present embodiment; Down transmitting power through to each cell portion is configured; And in follow-up signal emission process, actual emission power is maintained below the transmitting power of configuration; Can solve and under tdd mode, to utilize the smart antenna problem that realization covers to cell portion in the correlation technique, guarantee the consistency that RNC and Node B use for power.
System embodiment
In the present embodiment; The power configuration system of a kind of CP is provided, has been used to realize the power configuration under the TDD mode, promptly; Realize the structure and the transmission of power configuration in the processing of a last embodiment; And the process of carrying out down transmitting power control according to power configuration, wherein, the sub-district at Node B place has at least one CP.
As shown in Figure 5, comprise the RNC 2 under Node B1 and this Node B1 according to the power configuration system of the CP of present embodiment.
Wherein, RNC 2 is used for disposing sub-district, Node B1 place, and each need carry out the maximum downstream transmitting power of the CP of down transmitting power control, and configuration result is sent to Node B1 through power configuration;
Node B1 is used to receive the power configuration from RNC 2, and is used for according to power configuration the CP of sub-district being carried out down transmitting power control.
When Node B1 carries out follow-up signal emission; For each CP that need carry out down transmitting power control, Node B1 needs the downlink gross power of this CP is maintained the maximum downstream transmitting power that is less than or equal to this cell portion that carries in the power configuration.
In practical application, usually also need be configured the down transmitting power of the common signal channel of the CP in the sub-district or the maximum downstream transmitting power of shared channel.Wherein, Common signal channel is being carried out under the situation of down transmitting power control, power configuration also comprise following one of at least: Common transport channel is set up message (COMMON TRANSPORTCHANNEL SETUP REQUEST), Common transport channel reconfiguration request message (COMMON TRANSPORT CHANNEL RECONFIGURATIONREQUEST); Shared channel is being carried out under the situation of down transmitting power control, power configuration also comprise following one of at least: Physical Shared Channel reconfiguration request message (PHYSICAL SHARED CHANNEL RECONFIGURATIONREQUEST).
Device embodiment
In the present embodiment; The power configuration device of a kind of CP is provided, and this device can be arranged among the Node B1 shown in Figure 5, and is used in the power configuration that realizes in the wireless communication system shown in Figure 5 under the TDD mode; Wherein, the sub-district at Node B place has at least one CP.
As shown in Figure 6, comprise according to the power configuration device of the CP of present embodiment: receiver module 12 and control module 14.
Receiver module 12 is used to receive the power configuration from RNC, wherein, carries in the power configuration that each need carry out the maximum downstream transmitting power of the CP of down transmitting power control in the sub-district, Node B place;
Control module 14, the power configuration that is used for receiving according to receiver module 12 is carried out down transmitting power control to the CP of sub-district.
Particularly; When Node B carries out follow-up signal emission; For each CP that need carry out down transmitting power control, the control module 14 of Node B all can maintain the downlink gross power of this CP the maximum downstream transmitting power that is less than or equal to this cell portion that carries in the power configuration.
In practical application, usually also need be configured the down transmitting power of the common signal channel of the CP in the sub-district or the maximum downstream transmitting power of shared channel.Wherein, Common signal channel is being carried out under the situation of down transmitting power control, power configuration also comprise following one of at least: Common transport channel is set up message (COMMON TRANSPORTCHANNEL SETUP REQUEST), Common transport channel reconfiguration request message (COMMON TRANSPORT CHANNEL RECONFIGURATIONREQUEST); Shared channel is being carried out under the situation of down transmitting power control, power configuration also comprise following one of at least: Physical Shared Channel reconfiguration request message (PHYSICAL SHARED CHANNEL RECONFIGURATIONREQUEST).
Power configuration device by means of the above-mentioned CP that is provided with in said system and the system; Can solve and under tdd mode, to utilize smart antenna cell portion to be realized the problem that covers in the correlation technique; Guarantee the consistency that RNC and Node B use for power, improved the covering performance of smart antenna under the tdd mode.
In sum; By above-mentioned processing of the present invention; Down transmitting power through to each cell portion is configured; And in follow-up signal emission process, actual emission power is maintained below the transmitting power of configuration, can realize the power configuration of common signal channel, shared channel under maximum transmission power and each Cell Portion of each cell portion of sub-district under the tdd mode, solve and can't under tdd mode, utilize smart antenna cell portion to be realized the problem that covers in the correlation technique; Guarantee the consistency that RNC and Node B use for power, thereby effectively improved the covering performance of smart antenna under the tdd mode.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the storage device and carry out, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize by calculation element.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the power distribution method of a cell portion; Be used for comprising that base station controller, Node B are that the wireless communication system of Node B is realized the power configuration under the TDD mode; Wherein, The sub-district at said Node B place has at least one cell portion, it is characterized in that said method comprises:
Said Node B receives the power configuration from said base station controller, wherein, carries in the said power configuration that each need carry out the maximum downstream transmitting power of the cell portion of down transmitting power control in the sub-district, said Node B place;
Said Node B carries out down transmitting power control according to said power configuration to the cell portion of said sub-district;
Wherein, the said Node B processing of carrying out down transmitting power control comprises:
For each cell portion that need carry out down transmitting power control, its downlink gross power is maintained the maximum downstream transmitting power that is less than or equal to this cell portion that carries in the said power configuration.
2. method according to claim 1 is characterized in that, said power configuration comprise following one of at least: request message is set up in the sub-district, cell re-configuration is put request message.
3. method according to claim 2; It is characterized in that; Under said power configuration is used for situation that the down transmitting power to the common signal channel of the cell portion of said sub-district is configured, said power configuration further comprise following one of at least: Common transport channel is set up message, Common transport channel reconfiguration request message.
4. method according to claim 2; It is characterized in that; Under said power configuration was used for situation that the maximum downstream transmitting power to the shared channel of the cell portion of said sub-district is configured, said power configuration further comprised the Physical Shared Channel reconfiguration request message.
5. method according to claim 1; It is characterized in that said power configuration comprises that sign and each of the cell portion that each need carry out down transmitting power control need carry out the maximum downstream transmission power level of the cell portion of down transmitting power control.
6. the power configuration device of a cell portion; Be arranged at Node B; Be used for realizing TDD mode power configuration down at the wireless communication system that comprises the base station controller under said Node B and the said Node B, wherein, the sub-district that said Node B belongs to has at least one cell portion; It is characterized in that said device comprises:
Receiver module is used to receive the power configuration from said base station controller, wherein, carries in the said power configuration that each need carry out the maximum downstream transmitting power of the cell portion of down transmitting power control in the sub-district, said Node B place;
Control module is used for according to said power configuration the cell portion of said sub-district being carried out down transmitting power control;
Wherein, the downlink gross power of the cell portion of said control module through each need being carried out down transmitting power control maintains the maximum downstream transmitting power that is less than or equal to this cell portion that carries in the said power configuration and carries out down transmitting power control.
7. the power configuration system of a cell portion comprises the base station controller that Node B and said Node B are affiliated, is used to realize the power configuration under the TDD mode, and wherein, the sub-district at said Node B place has at least one cell portion, it is characterized in that,
Said base station controller is used for disposing sub-district, said Node B place, and each need carry out the maximum downstream transmitting power of the cell portion of down transmitting power control, and configuration result is sent to said Node B through power configuration;
Said Node B is used to receive the said power configuration from said base station controller, and is used for according to said power configuration the cell portion of said sub-district being carried out down transmitting power control;
Wherein, according to said power configuration the cell portion of said sub-district being carried out down transmitting power control comprises:
For each cell portion that need carry out down transmitting power control, its downlink gross power is maintained the maximum downstream transmitting power that is less than or equal to this cell portion that carries in the said power configuration.
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| CN102209375A (en) * | 2010-03-31 | 2011-10-05 | 爱立信电话股份有限公司 | Method for setting downlink channel power and equipment implementing same |
| CN115734327A (en) * | 2021-08-31 | 2023-03-03 | 华为技术有限公司 | Downlink power control method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1705247A (en) * | 2004-06-03 | 2005-12-07 | 大唐移动通信设备有限公司 | Method for configuring down channel transmission power of multiaerial system |
| CN1964548A (en) * | 2005-11-07 | 2007-05-16 | 华为技术有限公司 | A method for multiplexing of soft frequency |
| CN101014159A (en) * | 2007-02-10 | 2007-08-08 | 华为技术有限公司 | Adaptive multi-rate grouping voice coding mode adjusting method and base station controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1705247A (en) * | 2004-06-03 | 2005-12-07 | 大唐移动通信设备有限公司 | Method for configuring down channel transmission power of multiaerial system |
| CN1964548A (en) * | 2005-11-07 | 2007-05-16 | 华为技术有限公司 | A method for multiplexing of soft frequency |
| CN101014159A (en) * | 2007-02-10 | 2007-08-08 | 华为技术有限公司 | Adaptive multi-rate grouping voice coding mode adjusting method and base station controller |
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