WO2005006587A1 - The method and system for confirming the target signal to interference radio of downlink common channel power control - Google Patents

The method and system for confirming the target signal to interference radio of downlink common channel power control Download PDF

Info

Publication number
WO2005006587A1
WO2005006587A1 PCT/CN2003/000554 CN0300554W WO2005006587A1 WO 2005006587 A1 WO2005006587 A1 WO 2005006587A1 CN 0300554 W CN0300554 W CN 0300554W WO 2005006587 A1 WO2005006587 A1 WO 2005006587A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
pdu
ue
received
data
number
Prior art date
Application number
PCT/CN2003/000554
Other languages
French (fr)
Chinese (zh)
Inventor
Sheng Liu
Original Assignee
Utstarcom (China) Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATIONS NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC [Transmission power control]
    • H04W52/30TPC [Transmission power control] using constraints in the total amount of available transmission power
    • H04W52/32TPC of broadcast or control channels
    • H04W52/322Power control of broadcast channels

Abstract

The invention discloses a method and system for producing the SIR target value in the open loop power control of the downlink, the method includes the steps as follows: a statistical step in RNC, takes the information which are indicated by the state of PDU from UE and are received by the RLC entity which corresponds to at least one of logic channels DCCH and DTCH bearing in the common transmission channel about whether UE side data PDU receive right or not; another step of obtaining an SIR target value, which sends information about whether UE side data PDU receive right or not to a SIR target value tracking loop in order to gain the SIR target value employed for the open loop power control in the downlink.

Description

It means for determining a downlink shared channel

The target signal to interference power control method and system Field ratio

The present invention relates to code division multiple access (CDMA) method of power control of a common channel downlink system. More particularly, the present invention relates to a method for determining the power at slow common channel on the downlink control channel to interference ratio target technology (SIR) of. Background technique

Code Division Multiple Access (CDMA) system is a typical interference-limited system, any user of the useful power, will become the interference with other users. Thus, power control techniques as a means to reduce the inter-channel interference is important, it has been widely used in the CDMA system. The power control depending on the control mode is divided into closed loop power control and open loop power control wherein the two types of β, the closed-loop power control is the received signal to interference ratio target value thereof (SIR) and compares the result produced by the receiving end reverse link power control commands back to the sender a feedback power control performed only for the presence of Mo thus dedicated channel to a radio link; open loop power control to the default channel need not, directly by the sender in accordance with a certain strategy its transmit power control, there is only one way to link a common type of channel, the power control can only be performed by open loop fashion. Compared with closed loop power control, open loop power control and rate control accuracy and are low.

In the 3GPP wideband code division multiple access (WCDMA) system, there are various types of downlink physical common channels, such as common pilot channel (the CPICH), Synchronization Channel (SCH), a first common control physical channel (P-CCPCH) The second common control physical channel '(S-CCPCH), a paging indicator channel (the PICH), the access indicator channel (the AICH) and the like. Wherein, in addition to the S-CCPCH, each downlink common physical channel associated with power capacity and coverage, and other cell parameters of network planning, network planning typically determined by the process and at a relatively constant transmit power level.

Before the S-CCPCH for carrying forward access channel (FACH) and a paging channel (PCH) two transmission channels, both the PCH or FACH may carry alone, it may be simultaneously multiplex both the transport channel. Wherein, PCH logical channel for carrying the PCCH (Paging Control Channel), FACH for carrying the broadcast control channel (BCCH), Common Control Channel (CCCH), a common traffic channel (CTCH), a dedicated control channel (DCCH), a dedicated traffic channel (DTCH) and other logical channels. A detailed description of these channels and multiplexing mode may be made to 3GPP specification 3GPP TS 25.211, 3GPP TS 25.321, 3GPP TS 25.301, 3GPP TS 25.302 documents such, the uses of the S-CCPCH, can refer to 3GPP specification TS 25.331, TS 25.302, TS 25.304 and other documents.

In a logical channel FACH S-CCPCH carrying the bearer, DTCH and DCCH exists only in the radio resource control layer (RRC) connected mode (RRC Connected Mode) the CELL_FACH state. A FACH may carry different user equipment (UE), DCCH and DTCH logical channels are distinguished by different users s UE-ID header field of FACH channel medium access control (MAC) wherein, in the CELL-FACH for carrying DCCH the UE RRC connection activation state of the RRC signaling is used for carrying DTCH small amount of user data according to Wei Θ RRC signaling and the detailed description of the different modes and states, refer to the document 3GPP TS 25.331 specification.

CELL-DCH state and the radio network controller (RNC) a RRC connection needs to be allocated a pair of dedicated physical channel as compared to the plurality of downlink UE under CELL- FACH state may be a time division multiplex S-CCPCH, through an uplink random access channel (RACH) transmission of data or signaling, therefore, CELL- FACH state using an RRC connection may reduce the occupation of the limited radio resources, thereby effectively improving the system capacity. In the radio resource manager (RRM) strategies, those for the UE, the downlink only needs to send small amounts of data, by controlling it enters a CELL FACH state, a CELL DCH state rather than to increase the utilization of radio resources. However, if the S-CCPCH does not perform proper power control for all users in the cell will be correctly received and all the S-CCPCH can simply be transmitted at sufficiently high power is relatively fixed, to ensure that the entire cell coverage. Thus, when the UE is in a state CELLJFACH reaches a certain amount, the resulting interference will greatly affect system performance, thanks to offset the benefits of ACH / FACH transmission for small data brought.

Therefore, only the power to take certain measures to control the S-CCPCH, in order to effectively improve the downlink performance. As previously described, S-CCPCH is a common type of channel, there is no corresponding dedicated uplink channel, and therefore, only by way of the open loop power control, a slow power control is achieved. "Downlink common channel CDMA system open loop power control method" in China, entitled Patent Application No. 02143793.9 proposes a method for performing slow power control for the DCCH and DTCH FACH bearer.

In an embodiment of the method, is required for each ϋΕ CELL- FACH state and the DCCH / DTCH established, the establishment of a corresponding SIR tracking loop, the outer power control loop SIR tracking loop and closed loop power control Figure 1 shows similar DCCH on reception quality of a block diagram of a typical tracking loop Θ SI the UE is currently required to track the SIR, the UE should be carried on the RACH uplink DCCH, and the DTCH FACH received measurements and report to the RNC through RRC measurement report, the RNC and the reception quality SIR measured values ​​as input tracking loop, whereby the UE is currently required SIR. wherein the UE measures the reception quality on the DCCH and DTCH to the FACH value, typical is a transport block error rate (BLER).

However, in the current WCDMA standard, the measurement report of the UE does not yet support the measurement of the downlink BLER. Accordingly, in order to effectively implement the downlink common channel open loop power control method in the current WCDMA system, based on the current need to solve the problem of the WCDMA standard obtained DCCH / DTCH FACH particular UE bearers required target SIR. SUMMARY

The present invention has the above problems, proposed standard based on the current WCDMA downlink common channel using the target signal to interference ratio (SIR) method and system of generating a slow power control techniques.

The method according to the present invention comprises the steps of: a step count, in the RNC, the statistics on the UE status bearer from the UE RLC entity in both the logical channels DCCH and DTCH common transport channel in at least one corresponding received PDU indicated PDU reception side data is correct or not information; and a step of obtaining a target SIR, the received information is correct or not data PDU sent on the UE side a tracking loop SIR target value to obtain a SIR target.

A system according to the present invention comprises: a statistical means, located in the RNC, from the UE on the UE status for RLC entity in both the logical channels DCCH carry statistical DTCH and a common transport channel in at least one corresponding received PDU indicated PDU reception side data information is correct or not; and a target SIR SIR target value tracking loop 5 for the UE side on the downlink data received is correct or PU outputs information according to the open loop power control.

In the present invention, may be received simultaneously or not the correct information for the common transport channel carried in the DCCH and DTCH logical channels statistical data PDUs at the UE side, the statistics may be performed only for one DCCH or DTCH. It should be understood that in order to improve the accuracy of statistics, while the best DTCH and DCCH statistics.

It is noted that, on the UE side data PDU received information is correct or not, according to one preferred embodiment of the present invention, it refers to the number of data PDU number PDU data received in error and the total UE transmitted, according to the present invention. another preferred embodiment, refers to the number of the data PDU and the UE correctly received erroneously received. BRIEF DESCRIPTION

Reading the detailed description in conjunction with the accompanying drawings of the present invention, the above advantages and other related advantages of the present invention will become more apparent, clear. In the drawings:

FIG. 1 is a block diagram of a typical tracking loop SIR;

FIG 2 is a diagram of a wireless interface protocol architecture;

FIG 3 is a schematic diagram of the relationship between layer acknowledged mode RLC peer;

FIG 4 is a schematic diagram of the structure of protocol data units RLC acknowledged mode data; FIG. 5 is a schematic configuration of a protocol data unit RLC acknowledged mode state; FIG. 6 is a flowchart of a method to generate SIR target value according to the present invention;

FIG 7 is a diagram of a system in accordance with SIR target value is generated according to the present invention;

FIG 8 is a SIR target generation method according to a preferred embodiment of the present invention; and

FIG 9 is a SIR target generation method according to another preferred embodiment of the present invention. detailed description

Below with reference to drawings, preferred embodiments of the present invention will be described.

In order to more clearly illustrate the invention, will be described here first radio interface protocol architecture of WCDMA. As shown, in a WCDMA radio interface protocol, the ground floor is a physical layer (a PHY), respectively, above the media access control layer (MAC) and radio link control layer (RLC) 2, a radio resource control (RRC ) layer is responsible for the control of these protocol layers. Between the MAC layer and the PHY layer channel is a transport channel, a channel between the MAC layer and the RLC layer is a logical channel. For a particular UE, there may be a plurality of RLC entities, i.e. different logical channels of the UE RLC entity correspond to different. In WCDMA, RLC layer supports three modes: transparent mode (TM), unacknowledged mode (Li) and an acknowledged mode (AM). Wherein the TM mode and the UM mode mainly for delay sensitive real time traffic, AM mode is mainly used for transmission of non-real time packet type traffic. Figure 3 shows a schematic of layers acknowledged mode RLC peer, can be seen from FIG. 3, a pattern of the AM RLC (AM-RLC) entity comprising transmit and receive functions of the two portions, AM-RLC entity to be able to etc. AM-RLC entity sends a query information, and peer AM-RLC entity to be the answer. Figure 4 shows the configuration mode of the RLC AM data protocol data unit (data PDU) of. Defined in detail in FIG individual domains, reference may be 3GPP standard TS 5.322. In FIG. 4, the domain "P" indicates that the query bit, when the bit is 1, showing a state report receiving end requests RLC peer layer, 0 indicates no request receiving side RLC peer layer status report. When the RLC layer and the like on the receiving end receives the data PDU P = l, i.e. PDU shall respond by sending status.

In WCDMA, the transmission side define multiple trigger start mode and trigger a variety of status inquiry STATUS PDU sent by the receiver which way or combination of various ways in practice, depending on the particular implementation; and which way the use of the particular embodiment of the present invention does not affect β detailed description of these methods and application methods, and reference may be TS5.322 working group standard document 3GPP TSG-R2-99253 other literature. Wherein, based on a certain time interval query query, or after each transmission mode based on a number of query data PDU starts, the more common way is a status query, based on the end state of the transmission mode in response to the query, receiving triggering transmission end status PDU mode more commonly used.

FIG. 5 shows the structure of the RLC AM mode state protocol data unit (STATUS PDU), and defined in detail in FIG individual domains, reference may be 3GPP standard TS5.322, status PDU used to report two equal AM mode state of the RLC entity. 5, the status PDU by one or more super-domains (SUFI) composition, WCDMA defines several types of SUFI, related to the present invention SUFI types ACK, LIST, BITMAP ^ Rlist four kinds, wherein the ACK type SUFI comprises a sequence number indicating the sequence number PDU before been received correctly. LIST, BITMAP type and Rlist (collectively referred to herein as type NACK) indicating sequence number SUFIs data PDU reception error occurs through different representations. In the AM mode, the data transmission side upon No. Error NACK PDU type is indicated SUFI is received, the retransmission of the erroneous data PDU, therefore, has the function of the RLC AM mode automatic repeat request (ARQ) is.

As previously described, S-CCPCH FACH and PCH can carry two transmission channels, wherein, the PCCH logical channel PCH carrier, can be multiplexed on the FACH BCCH, CCCH, CTCH, DCCH, DTCH and other logical channels. As a common transport channel, FACH may carry different logical channels DTCH and DCCH of the UE, DTCH FACH over all bearers of the UE and different DCCH both correspond to one RLC entity. The 3GPP standard TS 25.331, carried on the DCCH signaling RHC RLC AM mode are used, usually carried on a DTCH / FACH service, non-real-time data traffic, data traffic is sensitive to delay, but not for an error sensitive traffic, and therefore generally used in the RLC AM mode Thus, based on the above analysis, the present invention is proposed SIR target for the downlink common control channel is a slow power generation method and system is based on RLC ARQ function in AM mode based on.

FIG 6 shows a general flowchart of a method according to the invention. First, in step S61, the RNC, the statistical information on the UE side bearer PDU reception data is correct or not a common transport channel and a logical channel DCCH / DTCH or corresponding RLC entity receives from the UE status PDU indication of . Next, in step S62, DTCH same UE and / or the DCCH is sent to output a tracking loop target SIR, SIR target therefrom in accordance with predetermined tracking method generates a downlink common channel slow power control SIR target.

The SIR target value determination method of the present invention can be implemented system shown in Figure 7. 7, in the RNC, to the carrier in a common transport channel and a logical channel DCCH / or the DTCH, the means 71 to a statistical statistics on the state of the UE from the UE-side data indicative of a PDU received PDU is correct or not information. Statistics Statistics device 71 is fed to the value obtained by the SIR target tracking loop 72 to obtain a predetermined target value SIR SIR target tracking mode, in order to achieve a slow power control. Those skilled in the art will appreciate, connections shown in FIG. 7 shows only a logical connection, and the respective devices may be implemented in hardware through either discrete components, or by a memory and a processor programmed to the outside, collaboration component input / output device implemented in software and the like, may also be implemented in a way a combination of hardware or software.

Hereinafter, with reference to FIG. 8 illustrates a first preferred embodiment of the present invention.

8, in the RNC, to the DCCH and DTCH logical channels carried on a common transport channel in step S81 and S82, respectively, count status PDU from the UE indicates the RLC entity corresponding to the DCCH and DTCH reception the number of erroneously received data PDU beta] here, the transmitting side RLC entity through the controlling RNC RRC of the RNC side side query query based on certain time interval, or based on each transmission mode after a certain number of data PDU starts query may be employed makes the status inquiry, MLC peer entities at the UE side can be set to trigger the receiving side transmits status PDU based on the transmission end state query response manner. However, those skilled in the art will appreciate that, in what way the transmission side starts the status inquiry receiving section and which triggers a status PDU transmitted triggered the specific use, depending on the specific implementation, and does not affect the embodiment of the present invention.

Due to the same UE DCCH and DTCH have similar target quality requirement, thus the above-mentioned statistical result combined by the combining means in a step S83. If a certain time interval Δ Τ, DCCH the total UE transmitted by the FACH / DTCH data PDU number is N, the total error in the received Δ Τ statistical data PDU number is M, can be obtained the current block error rate BLER (k) is made in step S84 according to the following formula:

BLER (k) = M / N (1)

After the smoothing of the filtered BLER estimate BLER ave (k) is:

BLER ave (k) = a · BLER ave (kl) + (la) · BLER (k) (2) where, a is a smoothing filter coefficients, the optimum value may be selected empirically or actual test results, the values of A range between 0-1.

It should be noted, the total transmitted data PDU should include retransmission data PDU, and the erroneously received data PDU should include still errors retransmission data PDUo Further, Δ Τ should be long enough to ensure that the estimated BLER achieve sufficient accuracy, but too long it will affect tracking performance target SIR.

In step S85, the BLER using the measurement obtained by the above method, the input to a tracking loop target SIR (SIR target tracking loop typically shown in Figure 1), and the measured BLER value is about known BLER target values, and the comparison result by a certain mapping function. It should be understood that the mapping function may be any known Pat for obtaining the target SIR mapping function, the mapping function which has no effect on the specific use the embodiment of the present invention.5 is then generated SIR target for the downlink common channel is a slow power control at step S86,

Below with reference to FIG. 9 undertaking of two preferred embodiments of the present invention will be described in FIG. 9, in the RNC, to the DCCH and DTCH logical channels carried on a common transport channel in step S91 and S92, the statistics of the DCCH, respectively the number of correct and incorrect data PDU received from the UE state and the DTCH entity RLC PDU corresponding to the received indication. Here, by the RRC controlling RNC side, the RLC entity of the RNC side transmitting side can be queried based on the query certain time interval, or a state query based on each transmission mode after a certain number of queries to start using data PDU, the peer UE RLC entity receiving side terminal can set the trigger status PDU is transmitted based on the transmission end state query response manner. It should be understood by those skilled in the art, which method starts transmitting side and which trigger status inquiry sent by the receiver of the status PDU triggered the specific use, depending on the particular implementation, and does not affect the embodiment of the present invention.

Then, at step S93, the same UE DTCH and DCCH are output to the SIR target tracking loop. SIR target tracking loop outer loop power control may be employed with the same configuration as the exemplary example, may be used literature "On Setting Reverse Link Target SIR in a CDMA System, Proceedings of VTC, 97, May 1997, Vol. 2 , pp.929-933, by A. Sampath, P. Kumar and J. Holtzman "outer loop power control algorithm is used, that is,

- 1

+1

δ is the loop adjustment steps, Κ can be determined by the target BLER:

In outer loop power control, the formula (3) indicated in q k is derived by reading the transport block cyclic redundancy code MAC layer transmission block (CRC) of the correct amount, in the present invention, by the same q k HJ number data and logical DCCH UE RLC entity corresponding to the DTCH and proper reception error analysis obtained for each state i.e. when the PU derived status PDU indicating that there has already started a data PDU is received correctly, ¾ taking -1 , when the state indicates that there is a data PDU PDU is not received correctly, q k + 1 is taken, so that, using the tracking loop SIR having the same structure and outer loop power control, i.e., can be used to slow the downlink common channel power control SIR target. Those skilled in the art will appreciate that other means may be used to obtain the SIR target, at the option of the present embodiment using no influence on the invention.

In step S94, the target SIR output at a slow rate for the downlink power control.

Preferred embodiments of the present invention are described above in connection with the different ways of obtaining the target SIR value of the open loop power control. The number of erroneously received PDU data which, according to one embodiment of the present invention, from the state of UE RLC entity in the first period of time a certain statistical DCCH and DTCH PDU corresponding to the received indication, then the BLER value is calculated according to the method of the present invention then the SIR target is obtained by the SIR target tracking loop. In contrast, according to another embodiment of the practice of the present invention, the number of data directly received PDU correct and incorrect UE status of DCCH and DTCH from the RLC entity corresponding to the instruction into the received PDU SIR target track loop SIR target is obtained, therefore, this embodiment is not subjected to the process of calculating BLER value.

Above in connection with a WCDMA system of the preferred embodiment of the present invention have been described, those skilled in the art will appreciate that the present invention is applicable not only to the WCDMA system, but also applicable to any system other needs downlink common channel slow open loop power control , such as IS-95, cdma200 and TD: SCDMA system.

The foregoing description of preferred embodiments of the present invention for purposes of illustration only and should not be construed as any limitation to the present invention. The present invention may be employed in software, hardware, or a combination of both forms. Any modification skilled in the art related to the present invention can be obtained according to the above description and Improvement "and these variations and modifications are within the scope and spirit of the invention as defined by the appended claims.

Claims

A common channel downlink open loop power control SIR target is generated, the method comprising the steps of:
A statistic calculation step, in the RNC, the RLC entity in both statistical carrying DCCH and DTCH logical channels common transport channel in at least one corresponding received status PDU from the UE indicating that the UE-side of the data PDU received information is correct or not ; as well as
A SIR target value obtaining step, the received information is correct or not data PDU on UE side tracking loop into a target SIR, SIR target is used to obtain open loop downlink power control.
The method according to claim 1, wherein said count step comprises the steps: both the UE statistics of the DCCH and DTCH in the at least one corresponding RLC entity in the UE state from a time period indicated by the received PDU the number of erroneously received data WHJ; and
The number of data the UE erroneously received PDU to the statistics obtained, and the number of the at least one data PDU sent by the total time period both the CCH and TCH on ϋΕ as PDU reception side data is correct or not information Θ
3. The method of claim 2 fans claim, further comprising a step merging Ke, for the data PDU on UE RLC entity will erroneously received DCCH and DTCH logical channels corresponding to each received status PDU from the UE indicating the number of combined and
The number of wrong data PDU after the combined received data PDU and the number of the total transmission time period as the CCH and DTCH data PDU on UE side information received is correct or not.
4. The method of claim 2 or claim 3, wherein said step of statistically determined according to the downlink BLER value: BLER (k) = M / N
Wherein, M being the period of time in the UE and DCCH / DTCH or erroneously received data PDU number, N is the DCCH of the UE is transmitted in the total time period and / or the number of DTCH data PDU .
5. The method as claimed in claim 4, further comprising a filtering step of smoothing the formula downlink BLER value according to:
BLER ave (k) = a · BLER ave (kl) + (la) · BLER (k),
Wherein, a is a smoothing filter coefficient, which is in the range between 0-1.
6. The method according to claim 1, wherein said step further comprises the statistics and the number of correctly received data erroneously received status PDU from the UE RLC entity both DCCH and DTCH statistics at least one PDU corresponding to the received instruction, as received data PDU on UE side information is correct or not.
7. The method according to claim 6, wherein the step of obtaining the target value sm is obtained according to the formula k + 1 SIR target time:
- 1
+1
Wherein, δ is the loop adjustment steps, Κ can be determined by the target BLER:
q k RLC entity DCCH and DTCH logical channels by both the same UE corresponds to each of the at least one status PDU number PDU data received correct and incorrect analysis obtained export.
A common channel downlink open loop power control SIR target generation system, the system comprising the steps of:
A statistical means, located in the RNC, for statistical DCCH logical channels and both carried on a common transport channel DTCH in the UE RLC entity receives from the state of the at least one corresponding received PDU on UE side data indicative of the PDU is correct or not information; SIR target, and a tracking loop, according to the data PDU on UE side information received is correct or not output a downlink open loop power control SIR target.
9. The system of claim 8, wherein said means for statistical errors UE on the DCCH and DTCH logical channels both statistics of at least one corresponding RLC entity in the UE's state from a time period indicated by the received PDU the number of the received data PDU; PDU number of the UE and the data received by the statistical error of the means to obtain statistical data PDU and the number of the at least one of the total transmission time period in both said fans DCCH and DTCH on as UE-side data PDU received information is correct or not, the SIR target for inputting tracking loop.
10. The system according to claim 8, said apparatus further comprising a statistical combining means for combining data PDU on UE RLC entity will erroneously received DCCH and DTCH logical channels corresponding to each received status PDU from the UE an indication of the the combined number of data erroneously received PDU number to the number of the merged data PDU and the total transmission time period as the DCCH and DTCH data PDU on UE side information received is correct or not, for the input SIR target tracking loop.
11. The system of claim 9 or claim 10 wherein said statistical means downlink BLER value is determined according to the following formula:
BLER (k) = M / N
Wherein, M being the period of time in the UE and DCCH / DTCH or erroneously received data PDU number, N is the DCCH of the UE is transmitted in the total time period and / or the number of DTCH data PDU .
12. The system according to claim 11, wherein said apparatus further statistical smoothing filter of the following formula downlink BLER value according to:
BLER ave (k) = a · BLER ave (kl) + (la) · BLER (k),
Wherein, a is a smoothing filter coefficient, which is in the range between 0-1.
13. The system according to claim 8, wherein the further statistical means for receiving data correctly received status and error from the UE RLC entity both DCCH and DTCH logical channels statistics at least one PDU corresponding to the received indication PDU number, as received data PDU on UE side information is correct or not, the SIR target for inputting tracking loop.
14. The system according to claim 13, wherein said target SIR SIR target tracking loop to obtain k + 1 time according to the formula:
- 1
+1
δ is the loop adjustment steps, Κ can be determined by the target BLER:
q k of the same by both the UE DCCH and DTCH logical channels corresponding to at least one
RLC entity PDU data for each state and the number of erroneously received PDU correctly obtained analysis derived.
PCT/CN2003/000554 2003-07-11 2003-07-11 The method and system for confirming the target signal to interference radio of downlink common channel power control WO2005006587A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2003/000554 WO2005006587A1 (en) 2003-07-11 2003-07-11 The method and system for confirming the target signal to interference radio of downlink common channel power control

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/CN2003/000554 WO2005006587A1 (en) 2003-07-11 2003-07-11 The method and system for confirming the target signal to interference radio of downlink common channel power control
CN 03826698 CN100413222C (en) 2003-07-11 2003-07-11 Method and system for determining target signal interference ratio of down link public channel power control

Publications (1)

Publication Number Publication Date
WO2005006587A1 true true WO2005006587A1 (en) 2005-01-20

Family

ID=33569590

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2003/000554 WO2005006587A1 (en) 2003-07-11 2003-07-11 The method and system for confirming the target signal to interference radio of downlink common channel power control

Country Status (2)

Country Link
CN (1) CN100413222C (en)
WO (1) WO2005006587A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007083948A1 (en) * 2006-01-20 2007-07-26 Samsung Electronics Co., Ltd. Method and apparatus for open loop power control in frequency division multiple access system
US8096735B2 (en) 2006-03-10 2012-01-17 Kennametal Widia Produktions Gmbh & Co. Kg Cutting insert and milling tool

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1198274A (en) * 1996-06-27 1998-11-04 Ntt移动通信网株式会社 Transmitted power controller
CN1254222A (en) * 1998-11-12 2000-05-24 日本电气株式会社 Transmitting power control method of code-division multiple address communication system and its system
US6101179A (en) * 1997-09-19 2000-08-08 Qualcomm Incorporated Accurate open loop power control in a code division multiple access communication system
CN1304586A (en) * 1998-04-07 2001-07-18 艾利森电话股份有限公司 Downlink power control in cellular mobile radio communications system
CN1416623A (en) * 2000-01-12 2003-05-07 艾利森电话股份有限公司 Mobile station assisted forward link transmission power and data rate control in CDMA system
CN1426172A (en) * 2001-12-12 2003-06-25 华为技术有限公司 Method for controlling downward special physical channel power under compressed mode

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1198274A (en) * 1996-06-27 1998-11-04 Ntt移动通信网株式会社 Transmitted power controller
US6101179A (en) * 1997-09-19 2000-08-08 Qualcomm Incorporated Accurate open loop power control in a code division multiple access communication system
CN1304586A (en) * 1998-04-07 2001-07-18 艾利森电话股份有限公司 Downlink power control in cellular mobile radio communications system
CN1254222A (en) * 1998-11-12 2000-05-24 日本电气株式会社 Transmitting power control method of code-division multiple address communication system and its system
CN1416623A (en) * 2000-01-12 2003-05-07 艾利森电话股份有限公司 Mobile station assisted forward link transmission power and data rate control in CDMA system
CN1426172A (en) * 2001-12-12 2003-06-25 华为技术有限公司 Method for controlling downward special physical channel power under compressed mode

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007083948A1 (en) * 2006-01-20 2007-07-26 Samsung Electronics Co., Ltd. Method and apparatus for open loop power control in frequency division multiple access system
US8838113B2 (en) 2006-01-20 2014-09-16 Samsung Electronics Co., Ltd Method and apparatus for open loop power control in frequency division multiple access system
US8096735B2 (en) 2006-03-10 2012-01-17 Kennametal Widia Produktions Gmbh & Co. Kg Cutting insert and milling tool

Also Published As

Publication number Publication date Type
CN100413222C (en) 2008-08-20 grant
CN1788428A (en) 2006-06-14 application

Similar Documents

Publication Publication Date Title
US6987982B2 (en) Reservation multiple access
US7069035B2 (en) Method and apparatus for power control in a communication system
US7013146B2 (en) Method for adaptively setting transmission parameters for a random access channel transmission uplink procedure in a wireless communication system
US7898948B2 (en) Method and apparatus for sending a channel quality indication via a shared channel
US20090225709A1 (en) Managing uplink resources in a cellular radio communications system
US20080070610A1 (en) Communication Terminal Device, Base Station Device and Radio Communication System
US20050043051A1 (en) Cellular system, mobile station, base station and transmission power control method as well as program to be executed for implementing the method
US20100290407A1 (en) Mobile communication system, mobile station apparatus, base station apparatus and random access channel transmitting method
US20100272035A1 (en) Method of performing random access procedure in wireless communication system
US20100093364A1 (en) Method and apparatus for providing interference measurements for device-to-device communication
US20040158790A1 (en) Operation of a forward link acknowledgement channel for the reverse link data
US20080008212A1 (en) Radio link failure detection procedures in long term evolution uplink and downlink and apparatus therefor
US20050282574A1 (en) Power controlling method based on DwPTS
US20090318170A1 (en) Method of transmitting and receiving paging messages in wirelss communication system
US20040022213A1 (en) Apparatus and method for determining CQI report cycle in an HSDPA communication system
US20090143074A1 (en) Method and apparatus for control of uplink feedback information in contention based access in wireless communications
US20100329134A1 (en) Feedback and link adaptation techniques for wireless networks
US20010038619A1 (en) Radio communication system and method of operating the system
US20040097253A1 (en) Transmissions in a communication system
US20050238053A1 (en) Radio base station device, communication terminal device, and control information transmission method
EP1313231A1 (en) Method for controlling transmission power of HS-SCCH in UMTS system
US20090069017A1 (en) Mobile communication system, mobile station, and radio base station
US20060034226A1 (en) Radio resource control in HSUPA system
US20030108013A1 (en) Method and apparatus for uplink transmission power control in a CDMA communication system
US7343172B2 (en) HSDPA CQI, ACK, NACK power offset known in node B and in SRNC

Legal Events

Date Code Title Description
AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 20038266989

Country of ref document: CN

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase in:

Ref country code: JP