WO2012159488A1

WO2012159488A1 - Power sharing method and device

Info

Publication number: WO2012159488A1
Application number: PCT/CN2012/072905
Authority: WO
Inventors: 张加钦
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-05-26
Filing date: 2012-03-23
Publication date: 2012-11-29
Also published as: CN102196551A; CN102196551B

Abstract

The present invention provides a power sharing device, which comprises an ordinary power distributor and a super power distributor. The ordinary power distributor is used for collecting the sum of R99 power and high speed downlink packet access (HSDPA) guarantee speed power of cells, collecting a transmitted signal strength indicator (TSSI), and reporting the sum and the TSSI to the super power distributor; and further used for utilizing the distributed power of each cell. The super power distributor is used for performing cell power distribution according to priorities of data reported by the ordinary power distributor, and informing the ordinary power distributor of the distributed power of each cell. The present invention also provides a power sharing method. Through the power sharing method and device of the present invention, power sharing can be performed by fully utilizing residual power on a PA on the premise of preferably ensuring the R99 power and the HSDPA guarantee speed power. Therefore, the overall capacity and throughput of a network are improved, and the degree of satisfaction of a terminal user is increased.

Description

Method and device for power sharing

The present invention relates to the field of mobile communication technologies, and more particularly to a Wideband Code Division Multiple Access (WCDMA) and Time Division-Synchronous Code Division Multiple Access (TD). -SCDMA) A method and apparatus for small-area downlink power sharing in a mobile communication system. Background technique

For the third generation mobile communication system (3G) technology, such as WCDMA, TD-SCDMA mobile communication systems, downlink power resources are a relatively precious resource, especially under the condition of no increase in cost, to improve system capacity and performance, It is very important to make full and reasonable use of power resources.

Since the total transmit power of a power amplifier (PA) is constant, two to four cells are generally built, and the load of the cell is different. Some cells require less power, and some cells require more power. The current technology does not perform inter-cell power sharing; or only considers the cell load factor for power sharing, but this will affect R99 (for normal voice usage) or High Speed Download Packet Access (HSDPA). The guaranteed rate, which causes the R99 user to drop calls and sign the HSDPA guaranteed rate, is not guaranteed, which is a fatal disadvantage. Summary of the invention

The object of the present invention is to provide a method and device for power sharing, which can fully utilize the remaining power on the PA for power sharing under the premise of guaranteeing the R99 power and the HSDPA guaranteed rate power, thereby improving the overall capacity and throughput of the network, and improving End user satisfaction.

In order to solve the above technical problem, the present invention provides a power sharing device, including: Power splitter and super power splitter,

The common power splitter is configured to collect the sum of the R99 power of each cell and the HSDPA guaranteed rate power of the high speed downlink packet, and the transmit signal strength indication TSSI, and report it to the super power splitter; and also use the allocated cell. Power

The super power splitter is configured to perform cell power allocation according to priority according to the data reported by the common power splitter, and notify the common power allocation crying port according to the power of each cell after the 4 bar allocation.

Further, the super power splitter is configured to perform high priority cell power allocation according to the sum of R99 power and HSDPA guaranteed rate power, and perform low priority cell power allocation according to TSSI.

In order to solve the above technical problem, the present invention further provides a power sharing method, including: the normal power distributor periodically reads the TSSI, and the sum of the collected R99 power of each cell and the HSDPA guaranteed rate power, and the TSSI report to the super power allocation. Device

The super power splitter performs cell power allocation according to the priority, and notifies the allocated power of the cells to the common power splitter;

The normal power splitter uses the allocated cell power.

Further, the normal power splitter periodically reads the TSSI, and the sum of the collected R99 power of each cell and the HSDPA guaranteed rate power, and the TSSI report to the super power splitter are: The normal power splitter reads the TSSI every 2 ms. And reporting the sum of the R99 power and the HSDPA guaranteed rate power in the N1 time slot, and reporting the TSSI to the super power splitter;

The super power splitter performs cell power allocation according to priority: the super power splitter first performs high priority cell power allocation according to the sum of R99 power and HSDPA guaranteed rate power in the N2 time slot, and then according to TSSI to residual power Performing low-priority cell power allocation; the normal power splitter uses the allocated cell power as: the normal power splitter uses the allocated cell power in the N3 time slot; wherein, the N1, N2, and N3 are 0. 3, 6, 9, One of 12, and N1 < N2 < N3.

Further, before the performing cell power allocation according to the priority, the method further includes: determining whether all current cell powers on the same power amplifier meet the following conditions: α> (sum of R99 power and HSDPA guaranteed rate power)/ The maximum transmit power of the cell and the maximum transmit power of the β > TSSI I cell, where α, β are preset percentages;

Correspondingly, the super power splitter performs cell power allocation according to priority: when any one of the power amplifiers does not satisfy two conditions or only meets one of the conditions, calculating a high priority of each cell on the same power amplifier required power level ρ _¾; on the cell according to the power amplifier Ρ _¾ power from small to large high priority is assigned;

Calculating a low priority needs a power amplifier on each cell _[rho];; the cell by a power amplifier on the _[rho]; from small to large for the low priority assignment remaining power amplifier;

When P _; < P _h , it is determined that the power of the allocated cell is P _3⁄4 ; when > P _3⁄4 , it is determined that the power of the allocated cell is P _;

Further, the calculating the high priority required power of each cell on the same power amplifier

P _¾ to: obtain a high-priority request capacity of each cell Ρ _¾ of the power amplifier according to P _¾ = (R99 HSDPA power and power ratio and guaranteed rate) / δ, where, δ is the percentage set in advance.

Further, the computing power requirements low priority cells of the respective [rho] on the power _amplifier; is: _Ρ; = currently reported TSSI / γ give low priority cells of the respective [rho] power demand on the power _amplifier; wherein , the γ is a preset percentage.

Further, α is 80%, β is 85%, δ is 65%, and γ is 75%.

Compared with the prior art, the present invention provides a method and a device for sharing power, and the sum of R99 power and HSDPA guaranteed rate power of each cell and the transmitted signal strength indicator (TSI, Transmitted Signal Strength Indicator) are collected by a common power splitter. ), then the super power splitter performs power grading: according to the sum of R99 power and HSDPA guaranteed rate power High priority cell power allocation, low priority cell power allocation according to TSSI. In this way, the power of the R99 power and the HSDPA guaranteed rate is preferentially guaranteed, and the remaining power sharing can be performed according to the load among the cells, thereby improving the overall capacity and throughput of the network, and improving the satisfaction of the terminal user. DRAWINGS

1 is a diagram of a PA power sharing device according to an embodiment of the present invention;

2 is a diagram of cooperation between a super power splitter and a conventional power splitter according to an embodiment of the present invention;

3 is a flow chart of power allocation in an embodiment of the present invention. detailed description

In view of the above deficiencies, the present invention proposes a new PA power sharing technology, which can preferentially guarantee the power of the R99 power and the HSDPA guaranteed rate, and can share the remaining power according to the load between cells, thereby improving the overall capacity and throughput of the network. Improve end user satisfaction.

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments in order to make the present invention. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in FIG. 1 , an embodiment of the present invention provides a PA power sharing device, including: a common power splitter and a super power splitter, where

A common power splitter, which is a management unit module that can use power of a single cell, is used for: 101-102. Timingly collects the sum of R99 power and HSDPA guaranteed rate power of each cell, and TSSI, and reports it to the super power splitter; The allocated cell power is used according to the allocation result of the super power splitter;

The super power splitter is an allocating unit module that can use power of all cells, and is used for: 103. Performing cell power allocation according to priority according to data reported by the common power splitter: according to sum of R99 power and HSDPA guaranteed rate power High priority cell power allocation, according to The TSSI performs low priority cell power allocation; 104. Notifying the normal power allocator of the allocated cell power.

In the 3G system, the 3G system has a frame of 10ms, 15 frames in one frame, 5 sub-frames, and 3 sub-frames in one sub-frame. The HSDPA scheduler runs every 2ms and starts running at time slots 0, 3, 6, 9, 12, and the normal scheduler and super scheduler (ie, normal power splitter and super power splitter) can be in these 5 slots. Optional 3 time slots for power calculation, distribution and use, as long as the power is adjusted every 10ms. In the embodiment of the present invention, 3, 6, 12 time slots are selected for related operations, and when other time slots are selected, the operations are similar, and the description will not be repeated later.

As shown in FIG. 2, an embodiment of the present invention provides a PA power sharing method, including: Steps 201-202, a normal power splitter reads TSSI every 2 ms, and in a third time slot

The sum of the R99 power and the HSDPA guaranteed rate power, and the TSSI reported to the super power splitter.

Step 203: The super power allocator performs cell power allocation according to priority according to data reported by the ordinary power allocator: firstly, according to the sum of R99 power and HSDPA guaranteed rate power, perform high priority cell power allocation in the sixth time slot, and then according to the priority The TSSI performs low priority cell power allocation on the remaining power. Specifically include (as shown in Figure 3):

Step 21: Calculate whether all current cell powers on the same PA meet the following conditions: Condition 1 : α > (sum of R99 power and HSDPA guaranteed rate power) I Maximum transmit power of the cell;

Condition 2: β〉 TSSI / cell maximum transmit power;

If each cell satisfies the above two conditions, no power allocation is performed; if any of the cells does not satisfy the above two conditions or only one of the conditions is satisfied, the following power allocation is performed. Among them, α, β is a percentage, and in the embodiment of the present invention, α is 80%, and β is 85%.

Step 22: Calculate the high priority required power of each cell on the same PA by using the formula: P _3⁄4 = (sum of R99 power and HSDPA guaranteed rate power) / δ, and calculate δ as a percentage. In the example, δ is taken as 65%.

Step 23: The cell on the same PA performs high priority allocation according to 1 from small to large. This ensures fair and full use of power, and inter-cell power balance, preventing some cells from being very powerful, while others are small.

Step 24: Calculate the low priority demand power of each cell on the same PA by the formula: P _; = the currently reported TSSI / γ, where γ is a percentage. In the embodiment of the present invention, γ is 75%.

Step 25: Determine whether there is remaining power, if not, then no longer perform power allocation, go to step 27; if there is remaining power, continue with the following remaining power allocation, go to step 26.

In step 26, the cell on the same cell is pressed Ρ _; from small to large, the remaining power is allocated with low priority. This ensures fair and full use of power, as well as inter-cell power balance, to prevent some cells from being very powerful, and other cells with little power.

Step 27: Determine the power of the allocated cell: if Ρ _; < Ρ _3⁄4 , the cell power is Ρ _3⁄4 ; if Ρ _; Ρ ⁄ _3⁄4 , the cell power is Ρ _;

Step 204: The super power splitter delivers the shared power to the normal power splitter. Step 205: The normal power splitter uses the allocated cell power in the 12th time slot.

The invention provides a method and device for sharing power of ΡΑ, collecting the sum of R99 power and HSDPA guaranteed rate power of each cell through an ordinary power allocator, and TSSI, and then super power splitter performs power grading allocation: according to R99 power and HSDPA guarantee The sum of the rate powers performs high priority cell power allocation, and the low priority cell power allocation is performed according to the TSSI. In this way, the power of the R99 power and the HSDPA guaranteed rate is preferentially guaranteed, and the remaining power sharing among the cells is performed according to the load, thereby improving the overall capacity and throughput of the network and improving the satisfaction of the terminal user.

The above description shows and describes a preferred embodiment of the present invention, but as described above, it should be understood that the present invention is not limited to the forms disclosed herein, and should not be construed as Other combinations, modifications, and environments, and the ability to model the invention described in this article Modifications are made by techniques or knowledge in the above teachings or related fields. All changes and modifications made by those skilled in the art are intended to be within the scope of the appended claims. Industrial applicability

The invention provides a PA power sharing method and device, which collects the sum of R99 power and HSDPA guaranteed rate power of each cell through a common power allocator, and TSSI, and then super power splitter performs power hierarchical allocation: according to R99 power and HSDPA guarantee The sum of the rate powers performs high priority cell power allocation, and the low priority cell power allocation is performed according to the TSSI. In this way, the power of the R99 power and the HSDPA guaranteed rate is preferentially guaranteed, and the remaining power sharing among the cells is performed according to the load, thereby improving the overall capacity and throughput of the network and improving the satisfaction of the terminal user.

Claims

Claim

A power sharing device, the device comprising: a general power splitter and a super power splitter,

2. The apparatus according to claim 1, wherein the super power splitter is configured to perform high priority cell power allocation according to a sum of R99 power and HSDPA guaranteed rate power, and perform low priority cell power according to TSSI. distribution.

3. A power sharing method, the method comprising:

The normal power splitter periodically reads the TSSI, and reports the sum of the collected R99 power of each cell and the HSDPA guaranteed rate power, and the TSSI is reported to the super power splitter;

The normal power splitter uses the allocated cell power.

The method according to claim 3, wherein the normal power distributor periodically reads the TSSI, and reports the sum of the collected R99 power of each cell and the HSDPA guaranteed rate power, and the TSSI is reported to the super power splitter. For:

The normal power splitter reads the TSSI every 2ms, and the sum of the R99 power and the HSDPA guaranteed rate power in the N1 time slot, and the TSSI is reported to the super power splitter;

The super power splitter performs cell power allocation according to priority:

The super power splitter first guarantees the rate power according to R99 power and HSDPA in the N2 time slot. And performing high-priority cell power allocation, and then performing low-priority cell power allocation on the remaining power according to TSSI;

The normal power splitter uses the allocated cell power as:

The N3 time slot uses the allocated cell power; wherein, the N1, N2, and N3 are one of 0, 3, 6, 9, 12, and N1 < N2 < N3.

The method according to claim 4, wherein before the performing cell power allocation according to the priority, the method further includes:

Determine whether all current cell powers on the same power amplifier meet the following conditions: α >

(sum of R99 power and HSDPA guaranteed rate power) / cell maximum transmit power and β > TSSI I cell maximum transmit power, where α, β are preset percentages;

6. The method according to claim 5, wherein the calculating the high priority required power P _3⁄4 of each cell on the same power amplifier is: according to P _3⁄4 = (sum of R99 power and HSDPA guaranteed rate power) / [delta] to give high priority request capacity of each cell Ρ _¾ of the power amplifier, wherein, [delta] is the percentage set in advance.

7. The method as claimed in claim 5, wherein said low priority calculating the required power of the [rho] of each amplifier _cell; is: The _Ρ; = currently reported TSSI / γ obtain Each cell of said low priority on the required power P _amplifier; wherein, γ is the percentage set in advance.

8. The method of claim 5 wherein said α is 80% and β is 85%.

9. The method of claim 6 wherein said δ is 65%.

10. The method of claim 7, wherein said γ is 75%.