WO2009039795A1 - Procédé et appareil de collocalisation de puissance d'émission de canal - Google Patents

Procédé et appareil de collocalisation de puissance d'émission de canal Download PDF

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Publication number
WO2009039795A1
WO2009039795A1 PCT/CN2008/072495 CN2008072495W WO2009039795A1 WO 2009039795 A1 WO2009039795 A1 WO 2009039795A1 CN 2008072495 W CN2008072495 W CN 2008072495W WO 2009039795 A1 WO2009039795 A1 WO 2009039795A1
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WIPO (PCT)
Prior art keywords
transmit power
common
common channel
adjustment value
mode
Prior art date
Application number
PCT/CN2008/072495
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English (en)
French (fr)
Inventor
Hongwei Wang
Xiaoxia Wang
Original Assignee
Huawei Technologies Co., Ltd.
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Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2009039795A1 publication Critical patent/WO2009039795A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/32TPC of broadcast or control channels

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a method and an apparatus for configuring channel transmission power.
  • some service transmission technologies are received by all public service users in the cell by transmitting a service data through a common channel in the cell.
  • broadcast multicast technology broadcasts or multicasts multimedia data to mobile terminals by sharing a transmission link.
  • the M BMS technology transmits only one MBMS service data in the core network (the broadcast multicast service center to the service general packet radio service access node in FIG. 1), and the terrestrial wireless access in the public mobile communication system.
  • Net UTRA N, UMTS Terrestrial Radio Access
  • one or more copies are sent over the air interface according to the MBMS service transmission mode in the cell.
  • MBMS service data can be transmitted using different physical channels.
  • DPCH downlink dedicated physical channel
  • the MBMS service data is transmitted from the Secondary Common Control Physical Channel (SCCPCH), called the Point to Multipoint (PTM) mode.
  • SCCPCH Secondary Common Control Physical Channel
  • PTM Point to Multipoint
  • a downlink DPCH needs to be established for each MBMS public service user, and the number of MBMS service data sent is the same as the number of users.
  • Each DPCH will consume one channel code resource and corresponding power resources. However, the transmit power of each DPCH can be adjusted according to the channel environment where the user is located. When the number of users in the cell is small, send M
  • the total power consumed by BMS service data may be relatively low.
  • a cell transmits the MBMS service data in the PTM mode, only one SCCPCH can be established to provide services for all MBMS public service users in the cell, and only one MBMS service data is sent in the entire cell.
  • This mode can save downlink channel code resources.
  • this mode requires a sufficiently large transmit power for the SCCPCH to ensure that the coverage is within the expected range.
  • the system capacity of this mode is not limited by the number of users.
  • a fixed transmission power is generally configured for the SCCPCH channel carrying the MBMS service in the PTM mode.
  • this fixed power configuration method cannot take into account changes in the transmit power requirements of the adjacent cell data in the PTM mode, and may cause the following unreasonable situations:
  • the SCCPCH power configuration is larger, if the PTM mode is used, When the number of neighboring cells increases, a large power waste is generated.
  • the SCC PCH power configuration is low, if the number of neighbor cells in the PTM mode is reduced, the quality of the MBMS service received by the user at the cell edge is reduced.
  • An embodiment of the present invention provides a method and a device for configuring a channel transmit power, which are used to configure a common common channel transmit power for a common mode cell, thereby saving power resources or improving user receiving services in different situations. quality.
  • An embodiment of the present invention provides a channel transmission power configuration method, including:
  • a channel transmission power configuration apparatus includes:
  • a number determining unit configured to determine the number of neighboring cells in the public mode in all neighboring cells of the public mode cell
  • an adjustment value determining unit configured to determine, according to the number of neighboring cells in the public mode determined by the number determining unit, a common channel transmit power adjustment value of the common mode cell
  • a transmit power configuration unit configured to determine a difference between a common channel normal transmit power and the common channel transmit power adjustment value, and configured a common channel transmit power of the common mode cell according to the determined difference value;
  • the common channel normal transmit power is a common channel transmit power of the common mode cell when there is no neighboring cell in the neighboring cell in the common mode.
  • a radio network controller includes:
  • a number determining unit configured to determine the number of neighboring cells in the public mode in all neighboring cells of the public mode cell
  • an adjustment value determining unit configured to determine, according to the number of neighboring cells in the common mode determined by the number determining unit, a common channel transmit power adjustment value of the common mode cell
  • a transmit power configuration unit configured to determine a difference between a common channel normal transmit power and the common channel transmit power adjustment value, and configured a common channel transmit power of the common mode cell according to the determined difference, where
  • the common channel normal transmission power is a common channel transmission power of the common mode cell when there is no neighboring cell in the neighboring cell in the common mode.
  • the embodiment of the present invention configures a common channel of the cell by using a common channel transmit power adjustment value of the cell and a normal channel normal transmit power determined according to the number of neighbor cells in the common mode.
  • the transmit power so that the public channel transmit power of the cell can be flexibly configured and adjusted according to the change of the number of neighbor cells in the public mode, and the fixed configuration mode cannot be adapted to or take into account the change in the number of neighbors in the public mode. Variety.
  • the number of neighboring cells in the public mode is increased, and the common channel transmission power is configured for the common mode cell, thereby saving power resources; and the number of neighboring cells in the public mode is less, for public
  • the mode cell configures a higher common channel transmit power, which improves the quality of the user receiving service.
  • FIG. 1 is a schematic diagram of a broadcast multicast architecture in the prior art
  • FIG. 2 is a flowchart of a channel transmission power configuration method according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for configuring channel transmit power according to another embodiment of the present invention.
  • FIG. 4 is a flowchart of a channel transmission power configuration method according to still another embodiment of the present invention.
  • FIG. 5 is a flowchart of a channel transmission power configuration method according to another embodiment of the present invention.
  • FIG. 6 is a flowchart of a channel transmission power configuration method according to still another embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a channel transmission power configuration apparatus according to an embodiment of the present invention.
  • various common channel transmit powers and various common channel transmit power adjustment values are in dB.
  • a public mode cell A cell that transmits a service in a public mode is simply referred to as a public mode cell, and a channel that uses a public mode to transmit service data is simply referred to as a common channel.
  • a service that is sent in public mode is called a public service.
  • Public service users in a cell have the function of link merging the common channels of the neighboring cells.
  • the PTM mode in the MBMS service technology belongs to the public mode
  • the SCCPCH channel used in the PTM mode belongs to the common channel
  • the PTM cell belongs to the public mode cell
  • the MBMS service transmitted in the PTM mode belongs to the public service.
  • the public mode cell only needs to establish a common channel to provide services for all public service users in the cell.
  • the common channel needs to be configured with a sufficiently large transmit power to ensure that all public service users in the cell can receive the service.
  • the common channel is configured with a large fixed transmit power, if the number of neighbors in the common mode is increased, a large power waste is generated; and when the common channel is configured with a lower fixed power, if the common mode is used, The number of neighbors is reduced, which reduces the quality of public services received by users at the edge of the cell.
  • the embodiment of the present invention provides a method for configuring a channel transmit power, which can configure a suitable common channel transmit power for a common mode cell according to a change in the number of neighbor cells in the common mode.
  • the existing fixed configuration method has the defects that the number of neighboring cells in the public mode is larger, and the common channel transmitting power is lower in the public mode cell, and the number of neighboring cells in the public mode is less.
  • the common mode cell configures a higher common channel transmit power.
  • FIG. 2 it is a schematic flowchart of a channel transmission power configuration method according to an embodiment of the present invention.
  • S203 Determine a difference between a normal transmit power of the common channel and a transmit power adjustment value of the common channel, and configure a common channel transmit power of the cell according to the difference.
  • the common channel normal transmission power is a preset parameter
  • the value is a common channel transmission power of the common mode cell when there is no neighboring cell in the common mode cell in the neighbor cell of the common mode cell.
  • a method for configuring a common channel transmit power of the cell according to the difference for example, the common channel transmit power of the common mode cell may be configured as a difference between a common channel normal transmit power and a common channel transmit power adjustment value. value.
  • the configuration method may also be configured to configure the transmit power for the common mode cell according to the magnitude relationship between the difference and a preset common channel transmit power threshold. For example: determining a magnitude relationship between the difference and a preset common channel transmit power threshold, where the common channel transmit power threshold may be arbitrarily set according to requirements, and if the difference is greater than the threshold, The common channel transmit power of the common mode cell is configured as the difference; or, if the difference is less than or equal to the threshold ⁇ , the common channel transmit power of the common mode cell is configured as the threshold.
  • the above configuration manner can ensure that the public service needs are met.
  • the common channel transmit power adjustment value of the public mode cell is determined, and some preset parameters may be referred to.
  • the determination method may include the following specific implementation methods:
  • Method 1 Refer to the preset first combined power offset.
  • the first combined power offset may be: For each additional ⁇ of the number of neighbors in the common mode, the common channel transmit power of the common mode cell may be reduced. It can also be understood as the maximum transmit power of the common channel. The ratio of the reduction to the total number of neighbors. The maximum degradable amount is a decrease in the transmit power of the common channel of the cell when all the neighboring cells of the common mode cell use the common mode.
  • the common channel transmit power adjustment value of the common mode cell is the product of the first combined power offset and the number of neighbors in the common mode.
  • a common channel transmit power adjustment value can be set for each value interval corresponding to the number of neighbors in the public mode. When the number of neighboring cells in the public mode is within a certain value interval, the common channel transmit power adjustment value of the public mode cell is taken as the common channel transmit power adjustment value corresponding to the value interval.
  • the common channel transmit power adjustment value of the public mode cell may be taken as: a common channel transmit power adjustment value corresponding to the value interval in which the number of neighbor cells in the public mode is located.
  • the value interval of the number of neighboring areas in the public mode can be divided according to needs, and there should be no intersection between the values. For example, if the total number of all neighboring cells of the public mode cell is N, it may be divided into any multiple value intervals without intersection between 0 and N, which may be determined per m (m ⁇ N) numbers. A value interval, you can also freely delineate any number of values.
  • the common channel transmit power adjustment value applicable to all values in the value interval may be determined according to the balance principle as an adjustment value corresponding to the value interval; It can also be determined according to statistical empirical value determination.
  • the common channel transmit power adjustment value corresponding to the value interval may be determined: the value in the middle of the value interval and the first value Combining the product of the power offset, the first combined power offset is the number of neighbors in the common mode.
  • the common channel transmit power of the public mode cell can be reduced:
  • an value interval is [3, 8)
  • the common channel transmit power adjustment of the neighboring cell ⁇ public mode cell with 5 common modes is calculated. If the value is X, the common channel transmit power adjustment value corresponding to the value interval is set to X.
  • the common channel transmit power adjustment value corresponding to the value interval is determined, so that the common channel transmit power finally configured by the common mode cell is as close as possible to the actual requirement, and the user service quality in the public mode cell is guaranteed.
  • the common channel transmit power adjustment value corresponding to each value interval is determined according to the empirical value of the statistics, the common channel transmit power adjustment value corresponding to each value interval can better meet the actual needs of the public mode cell.
  • common channel transmit power adjustment values corresponding to the number of neighbors in the public mode they can be obtained in order according to Table 1, and will not be redundant here.
  • the common channel transmit power adjustment values corresponding to the value ranges in Table 1 may also be equal.
  • the common channel transmit power adjustment value of the public mode cell is a fixed value.
  • the value interval of the number of neighbors in the public mode can also have only two intervals.
  • the corresponding common channel transmit power The adjustment value is 0, that is, the common channel transmission power is not adjusted; when the number of neighbors in the common mode is greater than q ⁇ , the corresponding common channel transmission power adjustment value is ⁇ 1.
  • This method can also be understood as setting a threshold number q.
  • the common channel of the common mode cell is not The transmit power is adjusted; when the number of neighbors in the common mode exceeds (ie, is greater than) the threshold value q ⁇ , the common channel transmit power of the common mode cell is adjusted, and the adjustment amount is ⁇ 1.
  • This mode refers to a preset second combined power offset.
  • Second Convergence Power Offset That is, all neighboring cells use the common mode, and the common channel transmit power of the common mode cell can be reduced.
  • the common channel transmit power adjustment value of the common mode cell is determined by: determining a neighboring area ratio of the public mode, and the determining method may be: using a common mode neighbor The number of districts accounts for the proportion of the total number of neighbors, namely: the number of neighbors in the public mode/the number of all neighbors; the adjustment of the common channel transmit power of the public mode cell: the second combined power offset and the public The product of the neighbor ratio of the pattern.
  • the value range of the neighboring area ratio in the public mode is the ratio of the number of neighboring areas in the public mode to the number of all neighboring areas.
  • a common channel transmission power adjustment value can be set for each value interval corresponding to the proportion of the neighboring area in the public mode.
  • the common channel transmit power adjustment value of the public mode cell may be taken as the common channel transmit power adjustment value corresponding to the value interval.
  • the common channel transmit power adjustment value of the public mode cell is determined by
  • Determining the proportion of neighbors in the public mode may be: using the ratio of the number of neighbors in the public mode to the number of all neighbors; determining the adjustment value of the common channel transmit power of the public mode cell
  • the value interval of the neighboring area ratio of the public mode can be divided according to needs, and there should be no intersection of each value interval. For example, it may be divided into any plurality of value intervals without intersection between 0 and 1, and may be one value interval per n/m (n ⁇ m), or any number of value intervals may be delineated at will. .
  • the common channel transmit power adjustment value applicable to all values in the value interval may be determined according to the balance principle as an adjustment value corresponding to the value interval; It can also be determined according to the statistical experience value.
  • the common channel transmit power adjustment value corresponding to the value interval may be determined as: a value in the middle of the value interval and a second combined power
  • the product of the offset, the second combined power offset is the common mode ⁇ for all neighboring cells, and the common channel transmit power of the common mode cell can be reduced.
  • the common channel transmit power adjustment value corresponding to the value interval is determined, so that the common channel transmit power finally configured by the public mode cell is as close as possible to the actual needs, and the user service quality in the public mode cell is guaranteed.
  • the common channel transmit power adjustment value corresponding to each value interval is determined according to the empirical value of the statistics, the common channel transmit power adjustment value corresponding to each value interval can better meet the actual needs of the public mode cell.
  • the common channel transmit power adjustment values corresponding to the value ranges in Table 3 may also be equal, such that the common channel transmit power adjustment of the common mode cell regardless of the number of neighbor cells in the common mode is used. Values are all a fixed value.
  • the value interval of the neighboring area ratio of the public mode can also have only two intervals.
  • the proportion of the neighboring area in the public mode is less than or equal to p ⁇ , the corresponding common channel transmission power
  • the adjustment value is 0, that is, the common channel transmission power is not adjusted; when the proportion of the neighboring area in the common mode is greater than p ⁇ , the corresponding common channel transmission power adjustment value is ⁇ 1.
  • This method can also be understood as setting a proportional threshold ⁇ .
  • the proportion of the neighboring area in the common mode is not exceeded (ie less than or equal to) the proportional threshold ⁇ , the common channel of the common mode cell is not The transmit power is adjusted.
  • the proportion of the neighboring area in the public mode exceeds (ie, is greater than) the threshold value ⁇ , the common channel transmit power of the common mode cell is adjusted, and the adjustment amount is ⁇ 1.
  • the ratio is large, and the common channel transmits power.
  • the rate adjustment value is also large, so that the difference between the normal transmission power and the larger adjustment value is relatively small, so that the configured common channel transmission power is relatively low; when the number of neighboring cells in the public mode is small, the ratio is As a result, the common channel transmit power adjustment value is also small, so that the difference between the normal transmit power and the smaller adjustment value is relatively large, so that the configured common channel transmit power is relatively high.
  • the PTM mode in the service and its SCCPCH channel are taken as an example to describe the configuration method of the common mode transmit power provided by the embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of configuring transmit power for a SCCPCH channel of a PTM mode cell according to a preset first combined power offset and a SCCPC H channel transmit power threshold according to another embodiment of the present invention. .
  • S301 Determine, in a neighboring cell of the PTM mode cell, a number of neighboring cells n1 in the PTM mode.
  • the adjustment value is determined as ⁇ , where ⁇ 1 is the first combined power offset.
  • the difference is P_ ⁇ , where
  • is the normal transmit power of the SCCPCH channel of the cell.
  • the SCCPCH channel transmit power adjustment value of the PTM mode cell when the number of neighbor cells in the PTM mode is relatively large, the SCCPCH channel transmit power adjustment value of the PTM mode cell is larger, and the normal transmit power in the S303 is larger.
  • the difference of the adjustment values is relatively small, so that in S305, when the difference is greater than the SCCPCH channel transmission power threshold Value ⁇ , the configured SCCPCH channel transmit power is relatively low; when the number of neighbor cells in the PTM mode is relatively small, the STMCH channel transmit power adjustment value of the PTM mode cell is small, then the normal transmit power in S303 is smaller.
  • the difference of the adjustment values is relatively small, so that in S305, when the difference is greater than the SCCPCH channel transmission power threshold, the configured SCCPCH channel transmission power is relatively high.
  • the SCCPCH channel transmit power configuration of the cell is configured, and the SCCPCH channel transmit power of the cell is directly configured as P - ⁇ , which can be more directly and conveniently used for the cell. Configure a suitable SCCPCH channel transmit power.
  • FIG. 4 a flow diagram of configuring a transmit power of a SCCPCH channel of a PTM mode cell with reference to a preset second combined power offset and a SCCP CH channel transmit power threshold is set forth in another embodiment of the present invention.
  • the ratio is determined to be n2/N.
  • the difference between the large adjustment values is relatively small, so that in S406, when ⁇ - ⁇ 2 ⁇ 2/ ⁇ is greater than the SCCPCH channel transmission power threshold, the configured SCCPCH channel transmission power is relatively low; when the number of neighbors in the PTM mode is compared In less case, the ratio is smaller, and the SCCPCH channel transmission power adjustment value is also smaller, so that the difference between the normal transmission power and the smaller adjustment value is larger, so that in S406, when P- ⁇ 2 ⁇ 2/ ⁇ is larger than SCCP
  • the CH channel transmit power threshold ⁇ the configured SCCPCH channel transmit power is relatively high.
  • P_ ⁇ 2 ⁇ 2/ ⁇ is greater than a SCCPCH channel transmit power threshold
  • the SCCPCH channel transmit power of the cell is directly configured as P - ⁇ 2 ⁇ 2/ ⁇ , which may be further It is directly and conveniently configured for the cell to transmit a suitable SCCPCH channel transmit power.
  • the present invention further provides another embodiment.
  • reference is made to a preset value interval of the number of neighboring cells in the common mode, and a common channel transmit power adjustment corresponding to the value interval is set.
  • Value and SCC PCH channel transmit power threshold configured for transmit power for the SCCPCH channel of the PTM mode cell. among them
  • the value interval of the number of neighboring cells in the public mode is different from each other; correspondingly, m common channel transmission power adjustment values are set, and each common channel transmission power adjustment value corresponds to one value respectively. Interval.
  • FIG. 5 it is a schematic flowchart of configuring transmit power for a SCCPCH channel of a PTM mode cell according to another embodiment of the present invention, including:
  • the difference between the normal transmit power of the SCCPCH channel of the cell and the adjusted transmit power of the SCCPCH channel is P - ⁇ 3, where P is the normal transmit power of the SCCPCH channel of the cell;
  • step S505 configuring the SCCPCH channel transmit power of the cell as a difference, for example, ⁇ _ ⁇ 3; [136] If no, step S506 is performed: configuring the SCCPCH channel transmit power of the cell as the SCCPCH channel transmit power threshold.
  • the difference is relatively small, so that in S505, when P_ ⁇ 3 is greater than the SCCPCH channel transmit power threshold, the configured SCCPCH channel transmit power is relatively low; when the number of neighbors in the PTM mode is relatively small, PTM The SCCPCH channel transmit power adjustment value of the mode cell is small, and the difference between the normal transmit power and the smaller adjustment value in S503 is relatively small, so that in S505, when P - ⁇ 3 is greater than the SCCPCH channel transmit power threshold ⁇ The configured SCCPCH channel transmission power is relatively high.
  • the SCCPCH channel transmit power of the cell may not be determined whether P_ ⁇ 3 is greater than the SCCPCH channel transmit power threshold, and the SCCPCH channel transmit power of the cell is directly configured as ⁇ - ⁇ 3, which may be more directly and conveniently.
  • the cell is configured with a suitable SCCPCH channel transmit power.
  • the present invention further provides another embodiment.
  • reference is made to a preset value interval of a neighboring area ratio of a common mode, and a common channel transmission power adjustment corresponding to the value range is set.
  • Value and SCC PCH channel transmit power threshold configured for transmit power for the SCCPCH channel of the PTM mode cell, where
  • the value interval of the neighboring area ratio of the public mode is different from each other; correspondingly, m common channel transmission power adjustment values are set, and each common channel transmission power adjustment value corresponds to one value. Interval.
  • the specific configuration process of configuring the transmit power of the SCCPCH channel of the PTM mode cell in the embodiment of the present invention is as follows:
  • [142] 5601. Determine a number of neighboring cells in the PTM mode in the neighboring cell of the PTM mode cell, for example, the number of the neighboring cells may be n4;
  • the SCCPCH channel transmit power adjustment value is a SCCPCH channel transmit power adjustment value ⁇ 4 corresponding to the value interval;
  • step S606 configuring the SCCPCH channel transmit power of the cell to be the difference, for example, ⁇ - ⁇ 4;
  • step S607 configuring the SCCPCH channel transmit power of the cell as the SCCPCH channel transmit power threshold.
  • the SCCPCH channel transmit power adjustment value is also large, so that the difference between the normal transmit power and the larger adjustment value is relatively small, so that in S606, when P - ⁇ 4 is greater than the SCCPCH channel transmit power threshold, the configured SCCPCH The channel transmit power is relatively low; when the number of neighbor cells in the PTM mode is small, the ratio is small, and the SCCPCH channel transmit power adjustment value is also small, so that the difference between the normal transmit power and the smaller adjustment value is It is relatively large, so that in S606, when ⁇ - ⁇ 4 is greater than the SCCPCH channel transmit power threshold, the configured SCCPCH channel transmit power is relatively high.
  • the SCCPCH channel transmit power of the cell may not be determined whether P_ ⁇ 4 is greater than the SCCPCH channel transmit power threshold, and the SCCPCH channel transmit power of the cell is directly configured as ⁇ - ⁇ 4, which may be more directly and conveniently.
  • the cell is configured with a suitable SCCPCH channel transmit power.
  • the configuration process of the mode SCCPCH channel transmission power, and the process of configuring the transmission power for the common channel of other services can also be described in the above embodiments.
  • the embodiment of the present invention further provides a channel transmission power configuration apparatus, which can be configured to configure a common channel transmission power for a common mode cell according to a channel transmission power configuration method.
  • an embodiment of the present invention further provides a channel transmission power configuration apparatus, where the configuration apparatus may include:
  • the number determining unit 71 is configured to determine, in all neighboring cells of the public mode cell, the number of neighboring cells in the public mode;
  • the adjustment value determining unit 72 is configured to determine, according to the number of neighboring cells in the public mode determined by the number determining unit 71, a common channel transmit power adjustment value of the common mode cell;
  • a transmit power configuration unit 73 configured to determine a difference between a common channel normal transmit power and a common channel transmit power adjustment value, and configure a common channel transmit power of the common mode cell according to the determined difference, for example, directly The difference is configured as a common channel transmit power of the common mode cell; wherein, the common channel normal transmit power is a common channel transmit power of the common mode cell when the neighbor cell ⁇ of the common mode is not used in all neighbor cells.
  • a channel transmit power configuration apparatus may further include: a determining unit 74 , configured to determine a common channel normal transmit power and a common channel transmit power determined by the adjustment value determining unit 72. The relationship between the difference between the adjusted values and the preset common channel transmit power threshold
  • the transmitting power configuration unit 73 determines, in the determining unit 74, that the difference is greater than the threshold, the common channel of the public mode cell.
  • the transmit power is configured as the difference; after the determining unit 74 determines that the difference is less than or equal to the threshold, the common channel transmit power of the common mode cell is configured as the threshold.
  • the adjustment value determining unit 72 further includes:
  • a first offset storage sub-unit 81 configured to store a first combined power offset, where the first combined power offset is a common channel transmission of a common mode cell for each additional number of neighboring cells in a common mode The power can be reduced;
  • the first adjustment value determining subunit 82 is configured to determine a common channel transmit power adjustment value, where the adjustment value is The product of a combined power offset and the number of neighbors in the common mode.
  • the adjustment value determining unit 72 may further include:
  • a second offset storage sub-unit 91 configured to store a second merge power offset, where the second merge power offset is used in all neighboring cells, and the common channel transmit power of the common mode cell may be Reduce the amount;
  • the first proportional value determining sub-unit 92 is configured to determine a proportion of the neighboring area in the public mode, and the proportion of the neighboring area in the public mode is a ratio of the number of neighboring areas in the public mode to the total number of all neighboring areas;
  • the third adjustment value determining subunit 93 is configured to determine a common channel transmit power adjustment value, where the adjustment value is a product of a second merge power offset and a neighbor ratio of the common mode.
  • the adjustment value determining unit 72 may further include:
  • a number interval storage sub-unit 101 configured to store a value interval of the number of neighbors in the common mode
  • a number interval adjustment value storage sub-unit 102 configured to store each of the above-mentioned value intervals corresponding to each Common channel transmit power adjustment value
  • the second adjustment value determining subunit 103 is configured to determine a common channel transmit power adjustment value, where the adjustment value is a common channel transmit power adjustment value corresponding to a value interval in which the number of neighbor cells in the common mode is used.
  • the adjustment value determining unit 72 may further include:
  • a proportional interval storage sub-unit 111 configured to store a value interval of the neighboring area ratio of the common mode
  • a proportional interval adjustment value storage sub-unit 112 configured to store each of the above-mentioned value-interval intervals Common channel transmit power adjustment value
  • the second ratio value determining sub-unit 113 is configured to determine the proportion of the neighboring area in the public mode, and the proportion of the neighboring area in the public mode is the ratio of the number of neighboring areas in the public mode to the total number of all neighboring areas;
  • the fourth adjustment value determining sub-unit 114 is configured to determine a common channel transmit power adjustment value, where the adjustment value is a common channel transmit power adjustment value corresponding to a value interval in which the neighboring cell ratio of the common mode is used.
  • the embodiment of the invention further provides a radio network controller (Radio Network Controller)
  • the radio network controller includes the channel transmit power configuration device in the above embodiment, and the channel transmit power configuration method according to the embodiment of the present invention configures the common channel transmit power for the common mode cell.
  • each unit included is only divided according to functional logic, but is not limited to the above division, as long as the corresponding function can be implemented;
  • the specific names of the functional units are also only for the purpose of distinguishing between the two, and are not intended to limit the scope of the present invention.
  • the embodiment of the present invention configures the common channel transmit power of the cell according to the common channel transmit power adjustment value of the cell and the normal channel normal transmit power determined by the number of neighbor cells in the common mode. Therefore, the public channel transmission power of the cell can be flexibly configured and adjusted according to the change of the number of neighboring cells in the public mode, thereby avoiding the change of the transmission power requirement that the fixed configuration mode cannot adapt to or take into account the change of the number of neighboring cells in the public mode.
  • the number of neighboring cells in the public mode is increased, the lower common channel transmit power is configured for the common mode cell, and the power resources are saved; the number of neighbor cells in the public mode is less, and the public mode cell is used.
  • the higher common channel transmit power is configured, which improves the quality of the user receiving service.

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Description

说明书 信道发射功率配置方法及其装置
[1] 技术领域
[2] 本发明涉及移动通信领域, 特别涉及一种信道发射功率的配置方法及装置。
[3] 发明背景
[4] 现有移动通信技术中, 有一些业务发送技术是通过小区中的一条公共信道发送 一份业务数据而由小区中的所有公共业务用户接收的。 比如广播多播技术就是 通过共享一条传输链路, 把多媒体数据广播或多播到移动终端。
[5] 参阅图 1所示的广播多播体系结构简化模型, 以广播多播技术中的多媒体广播 多播 (MBMS, Multimedia Broadcast Multicast
Service) 技术为例来说明广播多播技术的工作原理。 对处于同一小区的用户, M BMS技术将 MBMS业务数据在核心网 (图 1中广播多播业务中心到服务通用分组 无线业务接入节点) 只传输一份, 在公共移动通信系统陆地无线接入网 (UTRA N, UMTS Terrestrial Radio Access
Network) 中根据小区中的 MBMS业务发送模式选择在空中接口发送一份或者多 份。
[6] 在 UTRAN中, MBMS业务数据可以釆用不同的物理信道进行发送。 通过下行 专用物理信道 (DPCH, Dedicated Physical
Channel) 发送 MBMS业务数据吋, 称为点到点 (PTP, Point to
Point) 模式; 通过从公共控制物理信道 (SCCPCH, Secondary Common Control Physical Channel) 发送 MBMS业务数据吋, 称为点到多点 (PTM, Point to Multipoint) 模式。
[7] 当一小区釆用 PTP模式发送 MBMS业务数据吋, 需要对每一个 MBMS公共业务 用户都建立一条下行 DPCH, 发送的 MBMS业务数据份数与用户数目相同。 每一 条 DPCH都将消耗一份信道码资源和对应的功率资源。 但是, 每条 DPCH的发射 功率可根据用户所处位置的信道环境实吋调整, 当小区中用户数目少吋, 发送 M
BMS业务数据所消耗的总功率可能比较低。 [8] 当一小区釆用 PTM模式发送 MBMS业务数据吋, 只需建立一条 SCCPCH就可以 为本小区内所有 MBMS公共业务用户提供服务, 整个小区中发送的 MBMS业务 数据只有一份。 该模式可以节省下行信道码资源。 但是该模式需要为 SCCPCH配 置足够大的发射功率, 以保证覆盖范围能达到预期的范围。 该模式的系统容量 不受用户数目的限制。
[9] 在现有技术中, 一般为 PTM模式下承载 MBMS业务的 SCCPCH信道配置固定的 发射功率。 而这种固定功率配置方法不能兼顾釆用 PTM模式的邻区数据变化吋 对发射功率需求的变化, 有可能会产生以下不合理的情况: 当 SCCPCH功率配置 较大吋, 如果釆用 PTM模式的邻区数目增多, 则会产生较大的功率浪费; 当 SCC PCH功率配置较低吋, 如果釆用 PTM模式的邻区数目减小, 则会使小区边缘的 用户接收 MBMS业务的质量降低。
[10] 不仅 MBMS业务的 SCCPCH信道功率配置存在以上的问题, 对于那些通过一条 公共信道发送一份业务数据而由小区内所有公共业务用户接收的业务发送技术 也存在类似的问题: 为小区的公共信道配置固定的发射功率后, 当该小区公共 信道功率配置较大吋, 如果釆用相同公共信道进行业务发送的邻区数目增多, 则会产生较大的功率浪费; 当该小区公共信道功率配置较低吋, 如果釆用相同 公共信道进行业务发送的邻区数目减小, 则会使小区边缘的用户接收业务的质 量降低。
[11] 发明内容
[12] 本发明实施例提供一种信道发射功率的配置方法及装置, 用以为公共模式小区 配置合适的公共信道发射功率, 从而能够在不同的情况下, 节省功率资源, 或 者提高用户接收业务的质量。
[13] 本发明实施例提供了一种信道发射功率配置方法, 包括:
[14] 确定公共模式小区的所有邻区中, 釆用公共模式的邻区数目;
[15] 根据所述邻区数目确定该公共模式小区的公共信道发射功率调整值;
[16] 确定公共信道正常发射功率与所述公共信道发射功率调整值的差值, 并根据所 述确定的差值配置所述公共模式小区的公共信道发射功率; 其中, 所述公共信 道正常发射功率为当所述所有邻区中没有釆用公共模式的邻区吋, 该公共模式 小区的公共信道发射功率。
[17] 本发明实施例提供的一种信道发射功率配置装置, 包括:
[18] 数目确定单元, 用于确定公共模式小区的所有邻区中, 釆用公共模式的邻区数
§ ;
[19] 调整值确定单元, 用于根据所述数目确定单元确定的釆用公共模式的邻区数目 确定该公共模式小区的公共信道发射功率调整值;
[20] 发射功率配置单元, 用于确定公共信道正常发射功率与所述公共信道发射功率 调整值的差值, 并根据所述确定的差值配置所述公共模式小区的公共信道发射 功率; 其中, 所述公共信道正常发射功率为当所述所有邻区中没有釆用公共模 式的邻区吋, 该公共模式小区的公共信道发射功率。
[21] 本发明实施例提供的一种无线网络控制器, 包括:
[22] 数目确定单元, 用于确定公共模式小区的所有邻区中, 釆用公共模式的邻区数
§ ;
[23] 调整值确定单元, 用于根据所述数目确定单元确定的釆用公共模式的邻区数目 确定该公共模式小区的公共信道发射功率调整值;
[24] 发射功率配置单元, 用于确定公共信道正常发射功率与所述公共信道发射功率 调整值的差值, 并根据所确定的差值配置所述公共模式小区的公共信道发射功 率, 其中, 所述公共信道正常发射功率为当所述所有邻区中没有釆用公共模式 的邻区吋, 该公共模式小区的公共信道发射功率。
[25] 由以上技术方案可以看出, 本发明实施例通过根据釆用公共模式的邻区数目确 定的小区的公共信道发射功率调整值、 及公共信道正常发射功率, 来配置该小 区的公共信道发射功率, 这样就可以根据釆用公共模式的邻区数目的变化, 灵 活的配置、 调整小区的公共信道发射功率, 避免了固定配置方式不能适应 /兼顾 公共模式邻区数目变化对发射功率需求的变化。 从而使得能在釆用公共模式的 邻区数目较多吋, 为公共模式小区配置较低的公共信道发射功率, 节省了功率 资源; 而在釆用公共模式的邻区数目较少吋, 为公共模式小区配置较高的公共 信道发射功率, 提高了用户接收业务的质量。
[26] 附图简要说明 [27] 图 1为现有技术中广播多播体系结构示意图;
[28] 图 2为本发明一实施例中信道发射功率配置方法流程图;
[29] 图 3为本发明另一实施例的信道发射功率配置方法流程图;
[30] 图 4为本发明又一实施例的信道发射功率配置方法流程图;
[31] 图 5为本发明另一实施例的信道发射功率配置方法流程图;
[32] 图 6为本发明再一实施例的信道发射功率配置方法流程图;
[33] 图 7为本发明一实施例中信道发射功率配置装置示意图;
[34] 图 8、 9、 10、 11为本发明实施例中调整值确定单元示意图。
[35] 实施本发明的方式
[36] 在对本发明实施例提供的方案进行详细描述之前, 首先明确各实施例中将出现 的概念:
[37] 本发明各实施例中, 各种公共信道发射功率以及各种公共信道发射功率调整值 都以 dB为单位。
[38] 在业务发送模式中, 将在小区中只发送一份业务数据、 而由该小区内的所有接 收该业务的用户接收的模式简称为公共模式。 将釆用公共模式发送业务的小区 简称为公共模式小区, 将釆用公共模式吋发送业务数据的信道简称为公共信道 。 将釆用公共模式发送的业务称为公共业务。 在一小区内的公共业务用户具有 对邻区的公共信道进行链路合并的功能。 例如, MBMS业务技术中的 PTM模式 就属于公共模式, PTM模式釆用的 SCCPCH信道就属于公共信道, PTM小区就属 于公共模式小区, 釆用 PTM模式发送的 MBMS业务就属于公共业务。
[39] 公共模式小区只需建立一条公共信道就可以为本小区内所有公共业务用户提供 服务。 但是, 公共信道需要配置足够大的发射功率才能保证本小区内所有公共 业务用户都能得到服务。 当公共信道配置较大的固定发射功率吋, 如果釆用公 共模式的邻区数目增多, 则会产生较大的功率浪费; 而当公共信道配置较低的 固定功率吋, 如果釆用公共模式的邻区数目减小, 则会使小区边缘的用户接收 公共业务的质量降低。
[40] 因此, 本发明实施例提出了一种信道发射功率的配置方法, 能够根据釆用公共 模式的邻区数目的变化为公共模式小区配置合适的公共信道发射功率, 以解决 现有的固定配置方式存在的缺陷, 进而能在釆用公共模式的邻区数目较多吋为 公共模式小区配置较低的公共信道发射功率, 在釆用公共模式的邻区数目较少 吋为公共模式小区配置较高的公共信道发射功率。
[41] 参阅图 2所示, 为本发明一实施例提供的信道发射功率配置方法简要流程图。
[42] S201、 确定公共模式小区的所有邻区中, 釆用公共模式的邻区数目。
[43] S202、 根据釆用公共模式的邻区数目确定该公共模式小区的公共信道发射功率 调整值。
[44] S203、 确定公共信道正常发射功率与该公共信道发射功率调整值的差值, 并根 据该差值配置该小区的公共信道发射功率。
[45] 其中, 公共信道正常发射功率是预先设置的参数, 其值为当公共模式小区的所 有邻区中没有釆用公共模式的邻区吋, 该公共模式小区的公共信道发射功率。
[46] S203中, 根据差值配置该小区的公共信道发射功率的方法, 例如, 可以是将该 公共模式小区的公共信道发射功率配置为公共信道正常发射功率与公共信道发 射功率调整值的差值。
[47] 该配置方法也可以是根据该差值与预先设定的公共信道发射功率门限值的大小 关系来为该公共模式小区配置发射功率。 比如: 判断该差值与预先设定的公共 信道发射功率门限值的大小关系, 其中, 公共信道发射功率门限值可以根据需 要随意设定, 如果该差值大于该门限值, 将该公共模式小区的公共信道发射功 率配置为该差值; 或者, 如果该差值小于或等于该门限值吋, 将该公共模式小 区的公共信道发射功率配置为该门限值。 当某一公共业务需要公共模式小区的 公共信道发射功率最小为该门限值吋, 上述配置方式可以保证满足该公共业务 的需求。
[48] S202中, 根据釆用公共模式的邻区数目确定公共模式小区的公共信道发射功率 调整值吋, 可以参考一些预先设定的参数。 按照参考参数的不同, 其确定方法 可包括以下几种具体实施方式:
[49] 方式一、 参考预先设定的第一合并功率偏置。
[50] 第一合并功率偏置可以是: 釆用公共模式的邻区数目每增加一个吋, 公共模式 小区的公共信道发射功率可降低量。 也可以理解为公共信道发射功率的最大可 降低量与邻区总数目的比值。 该最大可降低量是当公共模式小区的所有邻区都 釆用公共模式吋, 该小区公共信道发射功率的可降低量。
[51] 参考第一合并功率偏置吋, 公共模式小区的公共信道发射功率调整值为第一合 并功率偏置与釆用公共模式的邻区数目的乘积。
[52] 可见, 当釆用公共模式的邻区数目比较多吋, 公共模式小区的公共信道发射功 率调整值就较大, 则正常发射功率与该较大调整值的差值就比较小, 从而配置 的公共信道发射功率比较低; 当釆用公共模式的邻区数目比较少吋, 公共模式 小区的公共信道发射功率调整值就较小, 则正常发射功率与该较小调整值的差 值就比较小, 从而配置的公共信道发射功率比较高。
[53] 方式二、 此种方式参考预先设定的以下两类参数:
[54] a、 釆用公共模式的邻区数目的取值区间。
[55] b、 对应上述取值区间设定的公共信道发射功率调整值。
[56] 对应釆用公共模式的邻区数目的每一个取值区间, 都可设定一公共信道发射功 率调整值。 当釆用公共模式的邻区数目处于某一取值区间内吋, 公共模式小区 的公共信道发射功率调整值取为与该取值区间对应的公共信道发射功率调整值
[57] 此种方式中, 公共模式小区的公共信道发射功率调整值可取为: 与釆用公共模 式的邻区数目所在的取值区间对应的公共信道发射功率调整值。
[58] 其中, 釆用公共模式的邻区数目的取值区间可以根据需要进行划分, 各取值区 间不应有交集。 例如, 假设公共模式小区的所有邻区总数目为 N个, 则可以在 0 和 N之间根据需要划分成没有交集的任意多个取值区间, 可以是每 m (m<N) 个 数目确定一个取值区间, 也可以随意划定任意多个取值区间。
[59] 对于每一个取值区间对应的公共信道发射功率调整值, 可以按照平衡原则来确 定适用于取值区间内所有取值的公共信道发射功率调整值为该取值区间对应的 调整值; 也可以按照统计的经验值确定等方式确定。
[60] 比如, 当按照平衡原则确定各取值区间对应的公共信道发射功率调整值吋, 可 确定取值区间对应的公共信道发射功率调整值为: 处于取值区间中间位置的值 与第一合并功率偏置的乘积, 第一合并功率偏置为釆用公共模式的邻区数目每 增加一个吋, 公共模式小区的公共信道发射功率可降低:
例如, 一个取值区间为 [3, 8) , 则可以确定处于这个取值区间中间位置的数 目为 5, 再计算有 5个釆用公共模式的邻区吋公共模式小区的公共信道发射功率 调整值比如为 X, 则设置该取值区间对应的公共信道发射功率调整值为 X。 这样
, 只要釆用公共模式的邻区数目处于 [3, 8) 内, 不管釆用公共模式的邻区数目 是 3个、 4个、 5个、 6个还是 7个, 其公共信道发射功率调整值都可取为 X。
[62] 按照平衡原则确定取值区间对应的公共信道发射功率调整值, 可以使公共模式 小区最终配置的公共信道发射功率与实际需要尽量接近, 保证公共模式小区中 用户业务质量。
[63] 如按照统计的经验值确定各取值区间对应的公共信道发射功率调整值, 各取值 区间对应的公共信道发射功率调整值可以更好地符合公共模式小区的实际需要
[64] 如参数示意表 1所示, 假设邻区数目的取值区间被划分为 n=0、 0<n<3、 3<n<6 、 6≤n<9等, 则当釆用公共模式的邻区数目为 0吋, 其所在的取值区间为 n=0, 对 应公共信道发射功率调整值为 0; 当釆用公共模式的邻区数目为 1或 2吋, 其所在 的取值区间为 0<n<3, 对应公共信道发射功率调整值为 Δ1。 对于其他釆用公共模 式的邻区数目对应的公共信道发射功率调整值, 可以按照表 1依次得到, 这里不 再冗述。
[65] 此外, 表 1中的各取值区间对应的公共信道发射功率调整值也可以是相等的。
这样, 无论釆用公共模式的邻区数目是多少, 公共模式小区的公共信道发射功 率调整值都是一个固定的值。
[66] 表 1
Figure imgf000010_0001
[68] 如参数示意表 2所示, 釆用公共模式的邻区数目的取值区间也可以只有两个区 间, 当釆用公共模式的邻区数目小于或等于 q吋, 对应公共信道发射功率调整值 为 0, 即不调整公共信道发射功率; 当釆用公共模式的邻区数目大于 q吋, 对应 公共信道发射功率调整值为 Δ1。 此种方式也可以理解为设定了一个数目门限值 q , 当釆用公共模式的邻区数目未超过 (即小于或等于) 该数目门限值 q吋, 不对 该公共模式小区的公共信道发射功率进行调整; 当釆用公共模式的邻区数目超 过 (即大于) 该数目门限值 q吋, 才对该公共模式小区的公共信道发射功率进行 调整, 其调整量都为 Δ1。
[69] 表 2
[70]
Figure imgf000010_0002
可见, 当釆用公共模式的邻区数目比较多吋, 公共模式小区的公共信道发射功 率调整值就较大, 则正常发射功率与该较大调整值的差值就比较小, 从而配置 的公共信道发射功率比较低; 当釆用公共模式的邻区数目比较少吋, 公共模式 小区的公共信道发射功率调整值就较小, 则正常发射功率与该较小调整值的差 值就比较小, 从而配置的公共信道发射功率比较高。 [72] 方式三、
[73] 此种方式参考预先设定的第二合并功率偏置。
[74] 第二合并功率偏置: 即所有邻区都釆用公共模式吋, 该公共模式小区的公共信 道发射功率可降低量。
[75] 参考第二合并功率偏置吋, 该公共模式小区的公共信道发射功率调整值的确定 方法为: 确定釆用公共模式的邻区比例, 其确定方法可以为: 釆用公共模式的 邻区数目占所有邻区总数目的比例值, 即: 釆用公共模式的邻区数目 /所有邻区 数目; 确定公共模式小区的公共信道发射功率调整值为: 第二合并功率偏置与 釆用公共模式的邻区比例的乘积。
[76] 可见, 当釆用公共模式的邻区数目较多吋, 所述比例就较大, 公共信道发射功 率调整值也较大, 从而正常发射功率与该较大调整值的差值就比较小, 从而配 置的公共信道发射功率比较低; 当釆用公共模式的邻区数目较少吋, 所述比例 就较小, 公共信道发射功率调整值也较小, 从而正常发射功率与该较小调整值 的差值就比较大, 从而配置的公共信道发射功率比较高。
[77] 方式四、
[78] 此种方式参考预先设定的以下两类参数:
[79] a、 釆用公共模式的邻区比例的取值区间: 釆用公共模式的邻区比例即为釆用 公共模式的邻区数目占所有邻区数目的比例值。
[80] b、 对应上述取值区间设定的公共信道发射功率调整值。
[81] 对应釆用公共模式的邻区比例的每一个取值区间, 都可设定一公共信道发射功 率调整值。 当釆用公共模式的邻区比例处于某一取值区间内吋, 公共模式小区 的公共信道发射功率调整值可取为与该取值区间对应的公共信道发射功率调整 值。
[82] 参考以上两类参数吋, 公共模式小区的公共信道发射功率调整值的确定方法为
[83] 确定釆用公共模式的邻区比例, 比如其确定方法可为: 釆用公共模式的邻区数 目与所有邻区数目的比例值; 确定公共模式小区的公共信道发射功率调整值为
: 与釆用公共模式的邻区比例所在的取值区间对应的公共信道发射功率调整值 [84] 其中, 釆用公共模式的邻区比例的取值区间可以根据需要进行划分, 各取值区 间不应有交集。 例如可以在 0和 1之间根据需要划分成没有交集的任意多个取值 区间, 可以是每 n/m (n<m) 确定一个取值区间, 也可以随意划定任意多个取值 区间。
[85] 对于每一个取值区间对应的公共信道发射功率调整值, 可以按照平衡原则来确 定适用于取值区间内所有取值的公共信道发射功率调整值为该取值区间对应的 调整值; 也可以按照统计的经验值确定。
[86] 当按照平衡原则确定各取值区间对应的公共信道发射功率调整值吋, 可确定取 值区间对应的公共信道发射功率调整值为: 处于取值区间中间位置的值与第二 合并功率偏置的乘积, 第二合并功率偏置为所有邻区都釆用公共模式吋, 该公 共模式小区的公共信道发射功率可降低量。
[87] 例如, 一个取值区间为 [1/6, 5/6) , 则可以确定处于这个取值区间中间位置的比 例值为 1/2, 再计算釆用公共模式的邻区比例为 1/2吋公共模式小区的公共信道发 射功率调整值为 X, 最后设置该取值区间对应的公共信道发射功率调整值为 X。 这样, 只要釆用公共模式的邻区比例处于 [1/6, 5/6)内, 不管釆用公共模式的邻 区比例是 1/6、 1/3、 1/2还是 2/3, 其公共信道发射功率调整值都取 X。
[88] 按照平衡原则确定取值区间对应的公共信道发射功率调整值, 可以使公共模式 小区最终配置的公共信道发射功率与实际需要尽量接近, 保证公共模式小区中 用户业务质量。
[89] 当按照统计的经验值确定各取值区间对应的公共信道发射功率调整值吋, 各取 值区间对应的公共信道发射功率调整值可以更好地符合公共模式小区的实际需 要。
[90] 如参数示意表 3所示, 若釆用公共模式的邻区比例的取值区间分为等于 0、 (0,1/ 6)、 [1/6, 1/2)、 [1/2, 1)和等于 1, 则当釆用公共模式的邻区比例为 0吋, 其所在 的取值区间为等于 0, 对应公共信道发射功率调整值为 0; 当釆用公共模式的邻 区比例为 0<k<l/6吋, 其所在的取值区间为 (0,1/6), 对应公共信道发射功率调整 值为 Δ&。 对于其他釆用公共模式的邻区比例对应的公共信道发射功率调整值, 可以按照表 2依次得到, 这里不再冗述。
[91] 此外, 表 3中的各取值区间对应的公共信道发射功率调整值也可以是相等的, 这样, 无论釆用公共模式的邻区数目是多少, 公共模式小区的公共信道发射功 率调整值都是一个固定的值。
[92] 表 3
[93]
Figure imgf000013_0001
[94] 如参数示意表 4所示, 釆用公共模式的邻区比例的取值区间也可以只有两个区 间, 当釆用公共模式的邻区比例小于或等于 p吋, 对应公共信道发射功率调整值 为 0, 即不调整公共信道发射功率; 当釆用公共模式的邻区比例大于 p吋, 对应 公共信道发射功率调整值为 Δ1。 此种方式也可以理解为设定了一个比例门限值 ρ , 当釆用公共模式的邻区比例未超过 (即小于或等于) 该比例门限值 ρ吋, 不对 该公共模式小区的公共信道发射功率进行调整, 当釆用公共模式的邻区比例超 过 (即大于) 该比例门限值 ρ吋, 才对该公共模式小区的公共信道发射功率进行 调整, 其调整量都为 Δ1。
[95] 表 4
[96]
Figure imgf000013_0002
可见, 当釆用公共模式的邻区数目较多吋, 所述比例就较大, 公共信道发射功 率调整值也较大, 从而正常发射功率与该较大调整值的差值就比较小, 从而配 置的公共信道发射功率比较低; 当釆用公共模式的邻区数目较少吋, 所述比例 就较小, 公共信道发射功率调整值也较小, 从而正常发射功率与该较小调整值 的差值就比较大, 从而配置的公共信道发射功率比较高。
[98] 上述方式一、 方式二、 方式三和方式四确定公共模式小区的公共信道发射功率 调整值的方法各不相同, 可以根据实际情况来选择合适的确定方式。
[99] 下面再以 MBMS
业务中的 PTM模式及其 SCCPCH信道为例, 详细说明本发明实施例提供的公共模 式发射功率的配置方法。
[100] 如图 3所示, 为本发明另一实施例参考预先设定的第一合并功率偏置和 SCCPC H信道发射功率门限值, 为 PTM模式小区的 SCCPCH信道配置发射功率的流程示 意图。
[101] S301、 确定 PTM模式小区的邻区中, 釆用 PTM模式的邻区数目 nl。
[102] S302、 确定该小区的 SCCPCH信道发射功率调整值。
[103] 本实施例中, 该调整值确定为 ΔΡΙχηΙ , 其中, ΔΡ1为第一合并功率偏置。
[104] S303、 确定该小区的 SCCPCH信道正常发射功率与 SCCPCH信道发射功率调整 值的差值。
[105] 例如, 本实施例中, 该差值为 P— ΔΡΙχηΙ , 其中,
Ρ为该小区的 SCCPCH信道正常发射功率。
[106] S304、 判断该确定的差值 (P— ΔΡΙχηΙ) 是否大于 SCCPCH信道发射功率门限 值。
[107] 如果是, 则转到 S305: 将该小区的 SCCPCH信道发射功率配置为该差值
[108] Ρ-ΔΡ1χη1 ;
[109] 如果否, 则转到 S306: 将该小区的 SCCPCH信道发射功率配置为 SCCPCH信道 发射功率门限值。
[110] 可见, 在本发明实施例一中, 当釆用 PTM模式的邻区数目比较多吋, PTM模式 小区的 SCCPCH信道发射功率调整值就较大, 则 S303中正常发射功率与该较大调 整值的差值就比较小, 从而在 S305中, 当该差值大于 SCCPCH信道发射功率门限 值吋, 配置的 SCCPCH信道发射功率就比较低; 当釆用 PTM模式的邻区数目比较 少吋, PTM模式小区的 SCCPCH信道发射功率调整值就较小, 则 S303中正常发射 功率与该较小调整值的差值就比较小, 从而在 S305中, 当该差值大于 SCCPCH信 道发射功率门限值吋, 配置的 SCCPCH信道发射功率就比较高。
[111] 在本发明实施例一中, 在 S303确定出正常发射功率与调整值的差值后, 也可以 不判断该差值 (P - ΔΡΙχηΙ) 是否大于 SCCPCH信道发射功率门限值, 即不是根 据该差值与 SCCPCH信道发射功率门限值的大小关系来配置小区的 SCCPCH信道 发射功率配置, 而是直接将该小区的 SCCPCH信道发射功率配置为 P - ΔΡΙχηΙ, 这样可以更直接方便地为小区配置较合适的 SCCPCH信道发射功率。
[112] 参阅图 4所示, 为本发明另一实施例参考预先设定的第二合并功率偏置和 SCCP CH信道发射功率门限值为 PTM模式小区的 SCCPCH信道配置发射功率的流程示 意图。
[113] S401、 确定 PTM模式小区的邻区中, 釆用 PTM模式的邻区数目 n2。
[114] S402、 确定该小区的邻区中, 釆用 PTM模式的邻区比例。
[115] 比如, 如该小区的所有邻区的总数目设为 N, 则该比例确定为 n2/N。
[116] S403、 确定该小区的 SCCPCH信道发射功率调整值。
[117] 比如, 本实施例中为 ΔΡ2χη2/Ν, 其中 ΔΡ2为第二合并功率偏置。
[118] S404、 确定该小区的 SCCPCH信道正常发射功率与 SCCPCH信道发射功率调整 值的差值为 Ρ— ΔΡ2χη2/Ν, 其中 Ρ为该小区的 SCCPCH信道正常发射功率;
[119] S405、 判断该差值 (Ρ— ΔΡ2χη2/Ν) 是否大于 SCCPCH信道发射功率门限值。
[120] 如果是, 则转到 S406: 将该小区的 SCCPCH信道发射功率配置为该差值
[121] Ρ-ΔΡ2χη2/Ν;
[122] 如果否, 则转到 S407: 将该小区的 SCCPCH信道发射功率配置为 SCCPCH信道 发射功率门限值。
[123] 可见, 在上述本发明实施例中, 当釆用 PTM模式的邻区数目较多吋, 所述比例 就较大, SCCPCH信道发射功率调整值也较大, 从而正常发射功率与该较大调整 值的差值就比较小, 从而在 S406中, 当 Ρ— ΔΡ2χη2/Ν大于 SCCPCH信道发射功率 门限值吋, 配置的 SCCPCH信道发射功率比较低; 当釆用 PTM模式的邻区数目较 少吋, 所述比例就较小, SCCPCH信道发射功率调整值也较小, 从而正常发射功 率与该较小调整值的差值就比较大, 从而在 S406中, 当 P— ΔΡ2χη2/Ν大于 SCCP CH信道发射功率门限值吋, 配置的 SCCPCH信道发射功率就比较高。
[124] 在本发明实施例中, 也可以不判断 P— ΔΡ2χη2/Ν是否大于 SCCPCH信道发射功 率门限值, 而直接将该小区的 SCCPCH信道发射功率配置为 P - ΔΡ2χη2/Ν, 这样 可以更直接方便地为小区配置较合适的 SCCPCH信道发射功率。
[125] 本发明还提供了另一实施例, 在本实施例中, 参考预先设定的釆用公共模式的 邻区数目的取值区间、 对应上述取值区间设定的公共信道发射功率调整值和 SCC PCH信道发射功率门限值, 为 PTM模式小区的 SCCPCH信道配置发射功率。 其中
[126] 假设, 设定有 m
个釆用公共模式的邻区数目的取值区间, 各取值区间互不相同; 对应地, 设定 有 m个公共信道发射功率调整值, 每一个公共信道发射功率调整值分别对应一个 取值区间。
[127] 参阅图 5所示, 为本发明所提供的另一实施例中为 PTM模式小区的 SCCPCH信 道配置发射功率的置流程示意图, 包括:
[128] S501、 确定 PTM模式小区的邻区中, 釆用 PTM模式的邻区数目 n3;
[129] S502、 确定该小区的 SCCPCH信道发射功率调整值;
[130] 例如, 当 n3处于某一釆用 PTM模式的邻区数目的取值区间内吋, 确定该小区的 SCCPCH信道发射功率调整值为与该取值区间对应的 SCCPCH信道发射功率调整 值 ΔΡ3;
[131] S503、 确定正常发射功率与调整值的差值;
[132] 例如, 可以确定该小区的 SCCPCH信道正常发射功率与 SCCPCH信道发射功率 调整值的差值为 P - ΔΡ3, P为该小区的 SCCPCH信道正常发射功率;
[133] S504、 判断差值是否大于发射功率门限值;
[134] 例如, 可以判断 P— ΔΡ3是否大于 SCCPCH信道发射功率门限值;
[135] 如果是, 则执行步骤 S505: 将该小区的 SCCPCH信道发射功率配置为差值, 例 如可以是 Ρ—ΔΡ3; [136] 如果否, 则执行步骤 S506: 将该小区的 SCCPCH信道发射功率配置为 SCCPCH 信道发射功率门限值。
[137] 可见, 在上述实施例中, 当釆用 PTM模式的邻区数目比较多吋, PTM模式小区 的 SCCPCH信道发射功率调整值就较大, 则 S503中正常发射功率与该较大调整值 的差值就比较小, 从而在 S505中, 当 P— ΔΡ3大于 SCCPCH信道发射功率门限值 吋, 配置的 SCCPCH信道发射功率就比较低; 当釆用 PTM模式的邻区数目比较少 吋, PTM模式小区的 SCCPCH信道发射功率调整值就较小, 则 S503中正常发射功 率与该较小调整值的差值就比较小, 从而在 S505中, 当 P - ΔΡ3大于 SCCPCH信 道发射功率门限值吋, 配置的 SCCPCH信道发射功率就比较高。
[138] 另外, 在上述实施例中, 也可以不判断 P— ΔΡ3是否大于 SCCPCH信道发射功率 门限值, 而直接将该小区的 SCCPCH信道发射功率配置为 Ρ-ΔΡ3 , 这样可以更 直接方便地为小区配置较合适的 SCCPCH信道发射功率。
[139] 本发明还提供了另一实施例, 在本实施例中, 参考预先设定的釆用公共模式的 邻区比例的取值区间、 对应上述取值区间设定的公共信道发射功率调整值和 SCC PCH信道发射功率门限值, 为 PTM模式小区的 SCCPCH信道配置发射功率, 其中
[140] 假设, 设定有 m
个釆用公共模式的邻区比例的取值区间, 各取值区间互不相同; 对应地, 设定 有 m个公共信道发射功率调整值, 每一个公共信道发射功率调整值都对应一个取 值区间。
[141] 参阅图 6所示, 本发明实施例为 PTM模式小区的 SCCPCH信道配置发射功率的 具体配置流程如下所述:
[142] 5601、 确定 PTM模式小区的邻区中, 釆用 PTM模式的邻区数目, 例如该邻区数 目可以 n4;
[143] 5602、 确定该小区的邻区中, 釆用 PTM模式的邻区比例;
[144] 例如, 若邻区总数目为 N, 则釆用 PTM模式的邻区比例就为 n4/N;
[145] S603、 确定该小区的 SCCPCH信道发射功率调整值;
[146] 例如, 当 M/N处于一釆用 PTM模式的邻区比例的取值区间内吋, 确定该小区的 SCCPCH信道发射功率调整值为与该取值区间对应的 SCCPCH信道发射功率调整 值 ΔΡ4;
[147] S604、 确定正常发射功率与调整值的差值;
[148] 例如, 当该小区的 SCCPCH信道正常发射功率为 P吋, 确定该小区的 SCCPCH信 道正常发射功率与 SCCPCH信道发射功率调整值的差值为 P - ΔΡ4;
[149] S605、 判断所述差值是否大于 SCCPCH信道发射功率门限值;
[150] 例如, 可以判断 Ρ— ΔΡ4是否大于 SCCPCH信道发射功率门限值;
[151] 如果是, 则执行步骤 S606: 将该小区的 SCCPCH信道发射功率配置为所述差值 , 例如可以是 Ρ— ΔΡ4;
[152] 如果否, 则执行步骤 S607: 将该小区的 SCCPCH信道发射功率配置为 SCCPCH 信道发射功率门限值。
[153] 可见, 在上述实施例中, 当釆用 PTM模式的邻区数目较多吋, 所述比例就较大
, SCCPCH信道发射功率调整值也较大, 从而正常发射功率与该较大调整值的差 值就比较小, 从而在 S606中, 当 P - ΔΡ4大于 SCCPCH信道发射功率门限值吋, 配置的 SCCPCH信道发射功率比较低; 当釆用 PTM模式的邻区数目较少吋, 所述 比例就较小, SCCPCH信道发射功率调整值也较小, 从而正常发射功率与该较小 调整值的差值就比较大, 从而在 S606中, 当 Ρ-ΔΡ4大于 SCCPCH信道发射功率 门限值吋, 配置的 SCCPCH信道发射功率就比较高。
[154] 另外, 在上述实施例中, 也可以不判断 P— ΔΡ4是否大于 SCCPCH信道发射功率 门限值, 而直接将该小区的 SCCPCH信道发射功率配置为 Ρ-ΔΡ4, 这样可以更 直接方便地为小区配置较合适的 SCCPCH信道发射功率。
[155] 以上各实施例仅是举例说明了在利用本发明实施例提供的信道发射功率配置方 法吋, MBMS业务技术中 PTM
模式的 SCCPCH信道发射功率的配置过程, 为其他业务 (比如 Wimax中的 MBS业 务、 其他广播多播业务) 的公共信道配置发射功率的流程也可同上述各实施例 所述。
[156] 本领域技术人员可以理解, 本发明实施例提供的信道发射功率的配置方法中, 其全部或部分步骤是可以通过程序指令相关的硬件来完成。 比如可以通过计算 机运行程来完成。 该程序可以存储在可读取存储介质, 例如, 随机存储器、 磁 盘、 光盘等。
[157] 本发明实施例还提供了信道发射功率配置装置, 可用以按照信道发射功率配置 方法为公共模式小区配置公共信道发射功率。
[158] 如图 7所示, 本发明实施例还提供了一种信道发射功率配置装置, 该配置装置 可包括:
[159] 数目确定单元 71, 用于确定公共模式小区的所有邻区中, 釆用公共模式的邻区 数目;
[160] 调整值确定单元 72, 用于根据数目确定单元 71确定的釆用公共模式的邻区数目 确定该公共模式小区的公共信道发射功率调整值;
[161] 发射功率配置单元 73, 用于确定公共信道正常发射功率与公共信道发射功率调 整值的差值, 并根据所确定的差值配置所述公共模式小区的公共信道发射功率 , 例如可以直接将所述差值配置成该公共模式小区的公共信道发射功率; 其中 , 公共信道正常发射功率为当所有邻区中没有釆用公共模式的邻区吋, 该公共 模式小区的公共信道发射功率。
[162] 参阅图 7所示, 本发明实施例提供的一种信道发射功率配置装置还可以包括: 判断单元 74, 用于判断公共信道正常发射功率与调整值确定单元 72确定的公共 信道发射功率调整值的差值与预先设定的公共信道发射功率门限值的大小关系
[163] 当本发明实施例提供的配置装置还包括判断单元 74吋, 发射功率配置单元 73在 所述判断单元 74判断出该差值大于该门限值吋, 将该公共模式小区的公共信道 发射功率配置为该差值; 在判断单元 74判断出该差值小于或等于该门限值吋, 将该公共模式小区的公共信道发射功率配置为该门限值。
[164] 其中, 参阅图 8所示, 调整值确定单元 72进一步包括:
[165] 第一偏置存储子单元 81, 用于存储第一合并功率偏置, 该第一合并功率偏置为 釆用公共模式的邻区数目每增加一个吋, 公共模式小区的公共信道发射功率可 降低量;
[166] 第一调整值确定子单元 82, 用于确定公共信道发射功率调整值, 该调整值为第 一合并功率偏置与釆用公共模式的邻区数目的乘积。
[167] 参阅图 9所示, 调整值确定单元 72还可以进一步包括:
[168] 第二偏置存储子单元 91, 用于存储第二合并功率偏置, 该第二合并功率偏置为 所有邻区都釆用公共模式吋, 该公共模式小区的公共信道发射功率可降低量;
[169] 第一比例值确定子单元 92, 用于确定釆用公共模式的邻区比例, 釆用公共模式 的邻区比例为釆用公共模式的邻区数目占所有邻区总数目的比例值;
[170] 第三调整值确定子单元 93, 用于确定公共信道发射功率调整值, 该调整值为第 二合并功率偏置与釆用公共模式的邻区比例的乘积。
[171] 参阅图 10所示, 调整值确定单元 72还可以进一步包括:
[172] 数目区间存储子单元 101, 用于存储釆用公共模式的邻区数目的取值区间; [173] 数目区间调整值存储子单元 102, 用于存储每个上述取值区间各自对应的公共 信道发射功率调整值;
[174] 第二调整值确定子单元 103, 用于确定公共信道发射功率调整值, 该调整值为 对应于釆用公共模式的邻区数目所在取值区间的公共信道发射功率调整值。
[175] 参阅图 11所示, 调整值确定单元 72还可以进一步包括:
[176] 比例区间存储子单元 111, 用于存储釆用公共模式的邻区比例的取值区间; [177] 比例区间调整值存储子单元 112, 用于存储每个上述取值区间各自对应的公共 信道发射功率调整值;
[178] 第二比例值确定子单元 113, 用于确定釆用公共模式的邻区比例, 釆用公共模 式的邻区比例为釆用公共模式的邻区数目占所有邻区总数目的比例值;
[179] 第四调整值确定子单元 114, 用于确定公共信道发射功率调整值, 该调整值为 对应于釆用公共模式的邻区比例所在取值区间的公共信道发射功率调整值。
[180] 本发明实施例还提供一种无线网络控制器 (Radio Network Controller
, RNC) , 该无线网络控制器包括上述实施例中的信道发射功率配置装置, 用 于按照本发明实施例提供的信道发射功率配置方法为公共模式小区配置公共信 道发射功率。
[181] 上述装置和无线网络控制器的实施例中, 所包括的各个单元只是按照功能逻辑 进行划分的, 但并不局限于上述的划分, 只要能够实现相应的功能即可; 另外 , 各功能单元的具体名称也只是为了便于相互区分, 并不用于限制本发明的保 护范围。
[182] 综上所述, 本发明实施例根据釆用公共模式的邻区数目确定的该小区的公共信 道发射功率调整值、 及公共信道正常发射功率, 来配置该小区的公共信道发射 功率, 从而可以根据釆用公共模式的邻区数目的变化, 灵活的配置、 调整小区 的公共信道发射功率, 从而避免了固定配置方式不能适应 /兼顾公共模式邻区数 目变化对发射功率需求的变化。 使得能在釆用公共模式的邻区数目较多吋, 为 公共模式小区配置较低的公共信道发射功率, 节省了功率资源; 在釆用公共模 式的邻区数目较少吋, 为公共模式小区配置较高的公共信道发射功率, 提高了 用户接收业务的质量。
[183] 显然, 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的 精神和范围。 这样, 倘若本发明的这些修改和变型属于本发明权利要求及其等 同技术的范围之内, 则本发明也意图包含这些改动和变型在内。

Claims

权利要求书
[1] 一种信道发射功率配置方法, 其特征在于, 包括:
确定公共模式小区的所有邻区中, 釆用公共模式的邻区数目; 根据所述邻区数目确定该公共模式小区的公共信道发射功率调整值; 确定公共信道正常发射功率与所述公共信道发射功率调整值的差值, 并根 据所述确定的差值配置所述公共模式小区的公共信道发射功率; 其中, 所 述公共信道正常发射功率为当所述所有邻区中没有釆用公共模式的邻区吋 , 该公共模式小区的公共信道发射功率。
[2] 如权利要求 1所述的方法, 其特征在于, 所述根据所述确定的差值配置所述 公共模式小区的公共信道发射功率, 具体包括:
将所述确定的差值配置成所述公共模式小区的公共信道发射功率。
[3] 如权利要求 1所述的方法, 其特征在于, 所述根据所述确定的差值配置所述 公共模式小区的公共信道发射功率, 具体包括:
判断所述差值与预先设定的公共信道发射功率门限值的大小关系; 如果所述差值大于所述门限值吋, 将所述公共模式小区的公共信道发射功 率配置为所述差值;
如果所述差值小于或等于所述门限值吋, 将所述公共模式小区的公共信道 发射功率配置为所述门限值。
[4] 如权利要求 1所述的方法, 其特征在于, 所述公共信道发射功率调整值的确 定方法包括:
确定所述公共信道发射功率调整值为第一合并功率偏置与所述釆用公共模 式的邻区数目的乘积; 其中, 所述第一合并功率偏置为釆用公共模式的邻 区数目每增加一个吋, 所述公共模式小区的公共信道发射功率可降低量。
[5] 如权利要求 1所述的方法, 其特征在于, 所述公共信道发射功率调整值的确 定方法包括:
在至少两个无交集的釆用公共模式的邻区数目取值区间中, 确定所述邻区 数目所在的取值区间;
确定所述公共信道发射功率调整值为: 对应所述邻区数目所在的取值区间 预先设定的公共信道发射功率调整值。
[6] 如权利要求 5所述的方法, 其特征在于, 所述对应所述邻区数目所在的取值 区间预先设定的公共信道发射功率调整值, 具体包括:
处于取值区间中间位置的值与第一合并功率偏置的乘积; 其中, 所述第一 合并功率偏置为釆用公共模式的邻区数目每增加一个吋, 所述公共模式小 区的公共信道发射功率可降低量。
[7] 如权利要求 1所述的方法, 其特征在于, 所述公共信道发射功率调整值的确 定方法包括:
确定所述邻区数目占所有邻区总数目的比例值;
确定所述公共信道发射功率调整值为: 第二合并功率偏置与所述比例值的 乘积; 其中, 所述第二合并功率偏置为所述所有邻区都釆用公共模式吋, 该公共模式小区的公共信道发射功率可降低量。
[8] 如权利要求 1所述的方法, 其特征在于, 所述公共信道发射功率调整值的确 定方法包括:
确定所述邻区数目占所有邻区总数目的比例值;
在至少两个无交集的釆用公共模式的邻区数目取值区间中, 确定所述比例 值所在的取值区间;
确定所述公共信道发射功率调整值为: 对应所述比例值所在的取值区间, 预先设定的公共信道发射功率调整值。
[9] 如权利要求 8所述的方法, 其特征在于, 所述对应所述比例值所在的取值区 间, 预先设定的公共信道发射功率调整值, 具体包括:
处于取值区间中间位置的值与第二合并功率偏置的乘积; 其中, 所述第二 合并功率偏置为所述所有邻区都釆用公共模式吋, 该公共模式小区的公共 信道发射功率可降低量。
[10] 如权利要求 1所述的方法, 其特征在于, 所述公共模式包括点到多点模式; 所述公共信道包括从公共控制物理信道。
[11] 如权利要求 1或 10所述的方法, 其特征在于, 所述公共信道发射功率为发送
MBMS业务的公共信道发射功率。
[12] 一种信道发射功率配置装置, 其特征在于, 包括:
数目确定单元, 用于确定公共模式小区的所有邻区中, 釆用公共模式的邻 区数目;
调整值确定单元, 用于根据所述数目确定单元确定的釆用公共模式的邻区 数目确定该公共模式小区的公共信道发射功率调整值;
发射功率配置单元, 用于确定公共信道正常发射功率与所述公共信道发射 功率调整值的差值, 并根据所确定的差值配置所述公共模式小区的公共信 道发射功率; 其中, 所述公共信道正常发射功率为当所述所有邻区中没有 釆用公共模式的邻区吋, 该公共模式小区的公共信道发射功率。
[13] 如权利要求 12所述的装置, 其特征在于, 所述装置还包括:
判断单元, 用于判断所述差值与预先设定的公共信道发射功率门限值的大 小关系;
所述发射功率配置单元在所述判断单元判断出所述差值大于所述门限值吋 , 将所述公共模式小区的公共信道发射功率配置为所述差值; 在所述判断 单元判断出所述差值小于或等于所述门限值吋, 将所述公共模式小区的公 共信道发射功率配置为所述门限值。
[14] 如权利要求 12所述的装置, 其特征在于, 所述调整值确定单元包括: 第一偏置存储子单元, 用于存储第一合并功率偏置, 所述第一合并功率偏 置为釆用公共模式的邻区数目每增加一个吋, 公共模式小区的公共信道发 射功率可降低量;
第一调整值确定子单元, 用于确定公共信道发射功率调整值, 所述公共信 道发射功率调整值为所述第一合并功率偏置与所述釆用公共模式的邻区数 目的乘积。
[15] 如权利要求 12所述的装置, 其特征在于, 所述调整值确定单元包括: 数目区间存储子单元, 用于存储釆用公共模式的邻区数目的取值区间; 数目区间调整值存储子单元, 用于存储每个所述取值区间各自对应的公共 信道发射功率调整值;
第二调整值确定子单元, 用于确定公共信道发射功率调整值, 所述公共信 道发射功率调整值为对应于所述釆用公共模式的邻区数目所在取值区间的 公共信道发射功率调整值。
[16] 如权利要求 12所述的装置, 其特征在于, 所述调整值确定单元包括: 第二偏置存储子单元, 用于存储第二合并功率偏置, 所述第二合并功率偏 置为所有邻区都釆用公共模式吋, 该公共模式小区的公共信道发射功率可 降低量;
第一比例值确定子单元, 用于确定釆用公共模式的邻区比例, 所述釆用公 共模式的邻区比例为釆用公共模式的邻区数目占所有邻区总数目的比例值 第三调整值确定子单元, 用于确定公共信道发射功率调整值, 所述公共信 道发射功率调整值为所述第二合并功率偏置与所述釆用公共模式的邻区比 例的乘积。
[17] 如权利要求 12所述的装置, 其特征在于, 所述调整值确定单元包括: 比例区间存储子单元, 用于存储釆用公共模式的邻区比例的取值区间; 比例区间调整值存储子单元, 用于存储每个所述取值区间各自所对应的公 共信道发射功率调整值;
第二比例值确定子单元, 用于确定釆用公共模式的邻区比例, 所述釆用公 共模式的邻区比例为釆用公共模式的邻区数目占所有邻区总数目的比例值 第四调整值确定子单元, 用于确定公共信道发射功率调整值, 所述公共信 道发射功率调整值为对应于所述釆用公共模式的邻区比例所在取值区间的 公共信道发射功率调整值。
[18] —种无线网络控制器, 其特征在于, 包括:
数目确定单元, 用于确定公共模式小区的所有邻区中, 釆用公共模式的邻 区数目;
调整值确定单元, 用于根据所述数目确定单元确定的釆用公共模式的邻区 数目确定该公共模式小区的公共信道发射功率调整值;
发射功率配置单元, 用于确定公共信道正常发射功率与所述公共信道发射 功率调整值的差值, 并根据所确定的差值配置所述公共模式小区的公共信 道发射功率, 其中, 所述公共信道正常发射功率为当所述所有邻区中没有 釆用公共模式的邻区吋, 该公共模式小区的公共信道发射功率。
[19] 如权利要求 18所述的无线网络控制器, 其特征在于, 所述无线网络控制器 还包括:
判断单元, 用于判断所述差值与预先设定的公共信道发射功率门限值的大 小关系;
所述发射功率配置单元在所述判断单元判断出所述差值大于所述门限值吋 , 将所述公共模式小区的公共信道发射功率配置为所述差值; 在所述判断 单元判断出所述差值小于或等于所述门限值吋, 将所述公共模式小区的公 共信道发射功率配置为所述门限值。
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US20020115460A1 (en) * 2001-02-22 2002-08-22 Goran Rune Power control for downlink shared channel in radio access telecommunications network
CN1866774A (zh) * 2005-05-16 2006-11-22 上海华为技术有限公司 对前向接入信道进行功率控制的方法
CN101119577A (zh) * 2007-09-24 2008-02-06 华为技术有限公司 信道发射功率配置方法及其装置

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