CN101521527A - Power control method and device thereof for high-speed dedicated physical control channel - Google Patents

Abstract

An embodiment of the present invention provides a power control method for a high-speed dedicated physical control channel, including: when the user equipment UE switches from non-Boosting to Boosting state, according to the power of the enhanced dedicated channel E-DCH and the high-speed dedicated physical control channel HS- The gain factor of the DPCCH channel controls the power of the HS-DPCCH channel. The embodiment of the present invention also provides a high-speed dedicated physical control channel power control device and network side equipment. The technical solution provided by the embodiment of the present invention is used to improve the demodulation performance of the HS-DPCCH channel, and further improve the throughput of the downlink.

Description

Power control method and device for high-speed dedicated physical control channel

technical field

The invention relates to the field of mobile communication, in particular to channel power control technology.

Background technique

As an upgraded technology of the WCDMA standard, high-speed downlink packet access HSDPA is an important feature of the 3GPP R5 version. It uses a series of key technologies such as adaptive modulation and coding AMC, hybrid retransmission HARQ, and fast scheduling of base stations to make downlink data The transmission rate is increased to 14Mbit/s (theoretical value), realizing downlink high-speed data transmission, thereby helping operators reduce operating costs and improve their business attractiveness.

HSDPA introduces three channels in the air interface, which are the downlink high-speed physical downlink shared channel HS-PDSCH responsible for downlink transmission of user data, and the downlink responsible for downlink transmission of the control information necessary for decoding the HS-PDSCH channel The high-speed shared control channel HS-SCCH and the uplink high-speed dedicated physical control channel HS-DPCCH are responsible for uplink transmission of downlink quality feedback information and other control information.

The HS-DPCCH can be used to carry relevant uplink feedback information of the high-speed dedicated signaling channel HS-DSCH. Wherein, the relevant feedback information of HS-DSCH includes: hybrid automatic repeat request HARQ-ACK, channel quality indicator CQI, if the user equipment UE is set to MIMO mode, the relevant feedback information also includes precoding control indicator PCI. Each 2ms subframe of the HS-DPCCH is composed of 3 time slots, and the length of each slot is 2560 chips. ACK/NACK information is fixed to be transmitted in the first time slot, and CQI is fixed to be transmitted in the second and third time slots. They are independent of each other and can be sent separately.

In the prior art, the power of the HS-DPCCH is configured by the serving radio network controller SRNC. Since there are two uplink channels for parallel transmission of the dedicated physical control channel DPCCH and the HS-DPCCH channel corresponding to each user, according to the agreement, The power of the two channels should be ramped up or down synchronously.

In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: when the UE is in the non Boosting state, the power of the HS-DPCCH is set relative to the power of the DPCCH channel. However, when the UE switches from non-Boosting to Boosting state, the power of the enhanced dedicated channel E-DCH relative to the DPCCH channel will increase sharply. Due to the strong inter-path interference, the demodulation performance of the HS-DPCCH under high-speed services will be deteriorated. If an equalized method is used to demodulate the HS-DPCCH channel, a large time delay will be introduced in the time overhead.

Contents of the invention

The main problem to be solved by the embodiments of the present invention is to provide a power control method, device and radio network controller for HS-DPCCH channels, which are used to improve the demodulation performance of HS-DPCCH channels, and further improve the throughput of the downlink .

The embodiment of the present invention provides a power control method of an HS-DPCCH channel, which mainly includes:

When the user equipment UE switches from non Boosting to Boosting state, the power of the HS-DPCCH channel is controlled according to the power of the enhanced dedicated channel E-DCH and the gain factor of the high-speed dedicated physical control channel HS-DPCCH channel.

The embodiment of the present invention also provides another power control method of the HS-DPCCH channel, which mainly includes:

When the UE switches from non-Boosting to Boosting state, the HS-DPCCH is controlled according to the increased quantization amplitude ratio parameter of the dedicated physical control channel HS-DPCCH and the power of the DPCCH channel.

An embodiment of the present invention provides a network side device, mainly including:

A detection unit is used to detect whether the UE is switched from non Boosting to Boosting state according to a preset threshold;

A sending unit, configured to send power control instruction information for increasing the power of the HS-DPCCH channel to the UE after the detection unit detects that the UE switches to the Boosting state.

The embodiment of the present invention also provides a power control device for an HS-DPCCH channel, which mainly includes:

A receiving unit, configured to receive power control indication information sent by the network side for increasing HS-DPCCH channel power;

The control unit is configured to control the power of the HS-DPCCH channel according to the power of the E-DCH and the gain factor of the HS-DPCCH channel after the receiving unit receives the power control indication information.

The embodiment of the present invention also provides a power control device for an HS-DPCCH channel, which mainly includes:

A receiving unit, configured to receive power control indication information sent by the network side for increasing HS-DPCCH channel power;

The control unit is configured to control the power of the HS-DPCCH channel according to the increased quantization amplitude ratio parameter of the HS-DPCCH channel and the power of the DPCCH channel after the receiving unit receives the power control indication information.

The method, device and network side equipment provided by the embodiments of the present invention set the power of the HS-DPCCH channel relative to the power of the E-DCH channel or increase the ratio of the power of the HS-DPCCH channel to the power of the DPCCH channel , increasing the power of the HS-DPCCH channel, thereby improving the demodulation performance of the HS-DPCCH channel, and further improving the throughput of the downlink.

Description of drawings

Fig. 1 is the flow chart of the power control method of the HS-DPCCH channel of an embodiment of the present invention;

Fig. 2 is the flow chart of the power control method of the HS-DPCCH channel of another embodiment of the present invention;

FIG. 3 is a flowchart of a power control method for an HS-DPCCH channel according to another embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a network side device according to an embodiment of the present invention;

5 is a schematic structural diagram of a power control device for an HS-DPCCH channel according to yet another embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a power control device for an HS-DPCCH channel according to another embodiment of the present invention.

Detailed ways

An embodiment of the present invention provides an HS-DPCCH power control method, the method may include:

When the UE switches from non Boosting to Boosting state, the power of the HS-DPCCH channel is controlled according to the enhanced dedicated channel E-DCH, the power and the gain factor of the HS-DPCCH channel, where the E-DCH can include the enhanced dedicated physical data channel E - DPDCH and Enhanced Dedicated Physical Control Channel E-DPCCH.

When the UE is in the non Boosting state, the power of the HS-DPCCH is set relative to the power of the DPCCH channel. However, when the UE switches from non Boosting to Boosting state, the power of E-DPCCH or E-DPDCH channel relative to DPCCH channel will increase sharply. For example, under the FRC8 service in the Boosting state, the power of the E-DPCCH or E-DPDCH channel will be about 16dB higher than the power of the DPCCH channel. If the power value setting of the HS-DPCCH channel remains unchanged relative to the original DPCCH channel, the demodulation performance of the HS-DPCCH under high-speed services will deteriorate due to strong inter-path interference. Therefore, when the UE is switched from non Boosting to Boosting state, in this embodiment, in the Boosting state, the power of the HS-DPCCH channel is changed to the setting mode relative to the power of the E-DPCCH or E-DPDCH channel.

When the demodulated data obtained on the E-DPCCH or E-DPDCH channel is greater than the Boosting detection threshold, it is considered that the UE has switched to the Boosting state. When the network side detects that the state of the UE changes, the power setting method of the HS-DPCCH needs to be changed, that is, to the setting method relative to the channel power of the E-DPCCH or E-DPDCH, as shown in Figure 1, specifically:

S101. Acquire an amplitude scale parameter A _hs of the HS-DPCCH.

Wherein, A _hs is the non-quantized amplitude ratio transformed according to the values of △ACK, △NACK and △CQI when the HS-DPCCH channel exists, and its value range can be set between 0-1. A _hs can be a value configured by the upper layer of the network side. For different Boosting states, the specific configuration of the A _hs parameter can be determined according to the business situation, and the parameter configuration is more flexible.

S102. Obtain the gain factor β _hs of the HS-DPCCH channel.

The gain factor β _hs of the HS-DPCCH channel can be obtained according to the product of the gain factor β _ec and A _hs of the compressed frame or the uncompressed frame of the E-DPCCH or E-DPDCH channel in the Boosting state, for example, by the following method:

β _hs ＝β _ec A _hs (0<A _hs <1)

In addition, the specific value of _βec can be obtained according to the provisions of the existing agreement.

S103. Control the power of the HS-DPCCH channel according to the gain factor β _hs of the HS-DPCCH channel and the power of the E-DPCCH or E-DPDCH.

The gain factor β _hs of the HS-DPCCH channel obtained in the above process is also the power offset of the HS-DPCCH channel relative to the E-DPCCH or E-DPDCH channel, then according to the power offset and the E-DPCCH or E-DPDCH channel The power of the HS-DPCCH channel can be set, and the power of the HS-DPCCH channel will increase according to a certain proportion as the power of the E-DPCCH or E-DPDCH channel increases.

The power control method of the HS-DPCCH provided in the above embodiments, since the power of the HS-DPCCH channel will be enhanced correspondingly with the power enhancement of the E-DPCCH or E-DPDCH channel, thereby improving the demodulation performance of the HS-DPCCH channel, And further improve the throughput of the downlink.

Another embodiment of the present invention also provides a power control method for HS-DPCCH, the method may include:

When the UE is switched from non-Boosting to Boosting, the HS-DPCCH is controlled according to the increased quantization amplitude ratio parameter A _hs of the DPCCH channel and the power of the DPCCH channel.

After the UE switches from non-Boosting to Boosting state, if the power value setting of HS-DPCCH channel remains unchanged, the demodulation performance of HS-DPCCH under high-speed services will deteriorate due to strong inter-path interference. In order to increase the power of the HS-DPCCH channel in the Boosting state, the relative ratio of the HS-DPCCH channel power to the DPCCH channel power can be increased,

An embodiment of the present invention provides a power control method for an HS-DPCCH, as shown in FIG. 2 , which may include:

S201. Acquire an improved quantization amplitude scale parameter A _hs of the HS-DPCCH channel.

In the non Boosting state, A′ _hs can be obtained by the following method:

For the HS-DPCCH time slot carrying hybrid automatic retransmission response HARQ Acknowledgment:

If the corresponding HARQ-ACK information is ACK, A' _hs is equal to the quantization amplitude ratio converted from the signal ΔACK;

If the corresponding HARQ-ACK information is NACK, A' _hs is equal to the quantization amplitude ratio converted from the signal ΔNACK;

If the corresponding HARQ-ACK information is PRE before a single transport block or POST after a single transport block, A' _hs is equal to the quantization amplitude ratio converted from the maximum value of the signals ΔACK and ΔNACK;

If the corresponding HARQ-ACK information is ACK/ACK, A' _hs is equal to the quantization amplitude ratio converted from the signal ΔACK+1;

If the corresponding HARQ-ACK information is NACK/NACKA' _hs is equal to the quantization amplitude ratio converted from the signal ΔNACK+1;

If the corresponding HARQ-ACK information is ACK/NACK, NACK/ACK, PRE before a double transport block, or POST after a double transport block, A' _hs is equal to the maximum of the slave signals (ΔACK+1) and (ΔNACK+1) The quantized magnitude ratio to which the value is converted.

For HS-DPCCH slots carrying CQI:

If the CQI of type A is transmitted, A' _hs is equal to the quantization amplitude ratio converted from the signal ΔCQI+1, otherwise, A _hs is equal to the quantization amplitude ratio converted from the signal ΔCQI.

Through the above method, the A' _hs of the HS-DPCCH channel in the nonBoosting state according to the transition of △ACK, △NACK and △CQI can be shown in Table 1:

Table 1 A′ _hs in non Boosting state

Mapping values of ACK, NACK and CQI Quantization amplitude ratio A′ _hs 9 38/15 8 30/15 7 24/15 6 19/15 5 15/15 4 12/15 3 9/15 2 8/15 1 6/15 0 5/15

When the demodulated data obtained by the DPCCH channel is greater than the Boosting detection threshold, it is considered that the UE has switched to the Boosting state. After the UE switches from non-Boosting to Boosting state, it can increase the relative ratio of HS-DPCCH channel power to DPCCH channel power by increasing the value of A' _hs , for example, on the basis of Table 1, increase A' _hs to Pre-set value range, so as to obtain A _hs , the value range of A _hs can be shown in Table 2:

Table 2 A _hs in Boosting state

Mapping values of ACK, NACK and CQI Quantization amplitude ratio A _hs 17 239/15 16 190/15 15 151/15 14 120/15 13 95/15 12 76/15 11 60/15 10 48/15 9 38/15 8 30/15 7 24/15 6 19/15 5 15/15 4 12/15 3 9/15 2 8/15 1 6/15 0 5/15

S202. Obtain the gain factor β _hs of the HS-DPCCH channel.

For uncompressed frames and compressed frames of the DPCCH channel, the calculation method of the gain factor β _hs is different:

The gain factor of the uncompressed frame can be obtained according to the product of the DPCCH gain factor β _c and the A _hs obtained in S201, for example, it can be expressed as: β _hs = β _c A _hs , where the value of β _c can be directly obtained by High-level mapping is obtained.

Except for the beginning and the end of the compressed frame, the ratio between the power of the HS-DPCCH channel and the power of the DPCCH channel, that is, the gain factor remains unchanged, and the gain factor β _{c, C} of the combined TFC for the jth transport format of the compressed frame _{, j} , A _hs obtained in S201 and the number of pilots N _{pilot of the DPCCH channel of the compressed frame per time slot, C} and the number of pilots of the DPCCH channel of the non-compressed frame N _{pilot of each time slot, the root ratio of N} The product of can be expressed as: ${\mathrm{\&beta;}}_{\mathrm{hs}}={\mathrm{\&beta;}}_{c,C,j}\&Center\; Dot;A_{\mathrm{hs}}\&Center\; Dot;\sqrt{\frac{N_{\mathrm{pilot},C}}{N_{\mathrm{pilot},N}}}.$

It can be seen that whether it is a compressed frame or an uncompressed frame, the gain factor β _hs of the HS-DPCCH channel changes with A _hs in different ways. To determine whether the DPCCH channel is a compressed frame or an uncompressed frame, the UE can count the number of pilots and notify the network side, and the network side can confirm whether it is a compressed frame or an uncompressed frame according to the number of pilots. For example, for the number of pilots A frame equal to 8 is an uncompressed frame, and a frame whose pilot number is less than 8 is a compressed frame.

S203. Control the power of the HS-DPCCH channel according to the gain factor β _hs of the HS-DPCCH channel.

The gain factor β _hs of the HS-DPCCH channel obtained in the above process is the power offset of the HS-DPCCH channel relative to the DPCCH channel. In this method, the obtained A _hs is improved, thereby improving the relative power of the HS-DPCCH channel. Based on the power offset of DPCCH. Then, according to the increased power offset and the power of the DPCCH channel, the power of the HS-DPCCH channel can be controlled, and the power of the HS-DPCCH channel will be correspondingly increased according to a certain proportion as the power of the DPCCH channel is increased.

Since A _hs is the value configured by the upper layers of the network side, for different Boosting states, the specific configuration of the A _hs parameter can be determined according to different business conditions. In this case, the parameter configuration is more flexible, which can improve the demodulation performance of the HS-DPCCH channel And optimize the transmission power of the entire uplink.

In addition, in addition to the way of obtaining the improved A _hs in the above method, there may be other ways of obtaining it. Another embodiment of the present invention also provides a power control method for HS-DPCCH, as shown in FIG. 3 , the Methods can include:

S301. Acquire a first quantization amplitude scale parameter A' _hs of the HS-DPCCH according to the boosted HS-DPCCH power offset in the non-boosting state.

Here, the boosted HS-DPCCH power offset in the non-boosting state can be expressed as ΔACK+k or ΔNACK+k or ΔCQI+k. Wherein, k is the mapping value increment of △ACK, △NACK, and △CQI, and the value of k can be set according to actual needs, and can be a dynamically configured parameter or a fixedly configured value. The value can be obtained from received high-level signaling, or can be obtained through detection and estimation.

The specific manner of obtaining the first quantization amplitude scale parameter A' _hs of the HS-DPCCH according to ΔACK+k, ΔNACK+k and ΔCQI+k can be referred to in Table 3 below.

Table 3 A′ _hs in Boosting state

Mapping values of ACK, NACK and CQI Quantization amplitude ratio A′ _hs 17 239/15 16 190/15 15 151/15 14 120/15 13 95/15 12 76/15 11 60/15 10 48/15 9 38/15 8 30/15 7 24/15 6 19/15 5 15/15 4 12/15 3 9/15 2 8/15

S302. Determine the value of the second quantization amplitude scaling parameter A hs according to the first quantization amplitude scaling parameter A' _hs , the power offset of the E-DPCCH or E-DPDCH relative _to the DPCCH, and a preset threshold.

Wherein, the power offset of E-DPCCH or E-DPDCH relative to DPCCH is the ratio of the gain factor of E-DPCCH or E-DPDCH to the gain factor of DPCCH, and the preset threshold is the threshold set for _Ahs . In the case of different power offsets of E-DPCCH or E-DPDCH relative to DPCCH, the selected value of the preset threshold is also different.

For example, in the Boosting state, if the power offset value of the E-DPCCH or E-DPDCH relative to the DPCCH is within the range [N, M1], N is a preset parameter and may be 38/15. M1 is the preset first threshold, the preset threshold is the first threshold, the determined A _hs cannot be greater than the first threshold, that is, the first quantization amplitude scale parameter A' _hs is compared with the first threshold, if the first threshold A quantization amplitude scale parameter A' _hs is greater than the first threshold, the second quantization amplitude scale parameter A _hs value is determined as the first threshold value, if the first quantization amplitude scale parameter A' _hs is less than or equal to the first threshold, and determine the second quantization amplitude scale parameter A _hs as the value of the first quantization amplitude scale parameter A' _hs . Specifically, if M1 is 95/15, then the first threshold can be set to 19/15, that is, when the power offset value of E-DPCCH or E-DPDCH relative to DPCCH is greater than 38/15 and less than 95/15 15, the finally determined second quantization amplitude scale parameter A _hs should be less than or equal to 19/15, that is, if the first quantization amplitude scale parameter A′ _hs obtained in S201 is greater than 19/15, the second quantization amplitude scale parameter A _hs value is determined to be 19/15, if the first quantization amplitude scale parameter A' _hs obtained in S201 is less than or equal to 19/15, the second quantization amplitude scale parameter A _hs value is determined as the first quantization amplitude scale parameter obtained A' _hs value.

It should be noted that the selection of M1 and the first threshold value in this method can be determined according to simulation results.

In addition, if the power offset value of E-DPCCH or E-DPDCH relative to DPCCH is greater than or equal to the preset second threshold M2, the determined A _hs cannot be smaller than the second threshold, that is, the first quantization amplitude scale parameter A' _hs and The second threshold comparison, if the first quantization amplitude scale parameter A' _hs is less than or equal to the second threshold, the second quantization amplitude scale parameter A _hs value is determined as the second threshold value, if the first quantization amplitude The scale parameter A' _hs is greater than the second threshold, and the second quantization amplitude scale parameter A _hs is determined as the value of the first quantization amplitude scale parameter A' _hs . Specifically, if M2 is 120/15, then the second threshold can be set to 24/15, that is, when the power offset value of E-DPCCH or E-DPDCH relative to DPCCH is greater than or equal to 120/15, The finally determined second quantization amplitude scale parameter A _hs is greater than or equal to 24/15, that is, if the first quantization amplitude scale parameter A' _hs obtained in S301 is less than or equal to 24/15, the second quantization amplitude scale parameter A _{The hs} value is determined to be 24/15, if the first quantization amplitude scale parameter A' _hs acquired in S301 is greater than 19/15, the second quantization amplitude scale parameter A _hs value is determined as the first quantization amplitude scale parameter A' _hs acquired value.

It should be noted that the selection of M2 and the second threshold value in this method may be determined according to simulation results.

And when A' _hs is outside the range of [N, M1] and (M2, ∞), it does not belong to the boosting state and is not within the scope of this patent.

S303. Acquire the gain factor β _hs of the HS-DPCCH channel.

For uncompressed frames and compressed frames of the DPCCH channel, the calculation method of the gain factor β _hs is different:

The gain factor of the uncompressed frame can be obtained according to the product of the DPCCH gain factor β _c and the A _hs obtained in S302, for example, it can be expressed as: β _hs = β _c A _hs , where the value of β _c can be directly obtained by High-level mapping is obtained.

Except for the beginning and the end of the compressed frame, the ratio between the power of the HS-DPCCH channel and the power of the DPCCH channel, that is, the gain factor remains unchanged, and the gain factor β _{c, C} of the combined TFC for the jth transport format of the compressed frame _{, j} , A _hs obtained in S302 and the pilot number N _{pilot of the DPCCH channel of the compressed frame per time slot, C} and the pilot number N _{pilot of the DPCCH channel of the non-compressed frame per time slot, the root ratio of N} The product of can be expressed as: ${\mathrm{\&beta;}}_{\mathrm{hs}}={\mathrm{\&beta;}}_{c,C,j}\&CenterDot;A_{\mathrm{hs}}\&Center\; Dot;\sqrt{\frac{N_{\mathrm{pilot},C}}{N_{\mathrm{pilot},N}}}.$

It can be seen that whether it is a compressed frame or an uncompressed frame, the gain factor β _hs of the HS-DPCCH channel changes with A _hs in different ways.

To determine whether the DPCCH channel is a compressed frame or an uncompressed frame, the UE can count the number of pilots and notify the network side, and the network side can confirm whether it is a compressed frame or an uncompressed frame according to the number of pilots. For example, for the number of pilots A frame equal to 8 is an uncompressed frame, and a frame whose pilot number is less than 8 is a compressed frame.

S304. Control the power of the HS-DPCCH channel according to the gain factor β _hs of the HS-DPCCH channel.

The gain factor β _hs of the HS-DPCCH channel obtained in the above process is the power offset of the HS-DPCCH channel relative to the DPCCH channel. In this method, the obtained A _hs is improved, thereby improving the relative power of the HS-DPCCH channel. Based on the power offset of DPCCH. Then, according to the increased power offset and the power of the DPCCH channel, the power of the HS-DPCCH channel can be controlled, and the power of the HS-DPCCH channel will be correspondingly increased according to a certain proportion as the power of the DPCCH channel is increased. At the same time, after switching to boosting, the HS-DPCCH power offset can be flexibly selected to ensure optimal demodulation performance.

An implementation of the present invention provides a network side device, as shown in Figure 4, the device may include:

The detection unit 401 is used to detect whether the UE is switched from non Boosting to Boosting state according to a preset threshold;

The sending unit 402 is configured to send power control instruction information for increasing HS-DPCCH channel power to the UE after the detecting unit 401 detects that the UE switches to the Boosting state.

That is to say, when the detection unit 401 detects that the demodulated data obtained by the E-DPCCH or E-DPDCH channel or DPCCH channel is greater than the preset threshold, it is considered that the UE is switched to the Boosting state, and the sending unit 402 sends a power control instruction message For the UE, it is used to instruct the UE to increase the power of the HS-DPCCH channel. In addition, the sending unit 401 can also send the instruction information of the power control to the radio network controller. After receiving the instruction information, the radio network controller returns a response message to the power control device, confirming that the HS-DPCCH channel power.

The network side device described in FIG. 4 may be set in a base station.

Another embodiment of the present invention also provides a power control device for an HS-DPCCH channel. As shown in FIG. 5, the device may include:

The receiving unit 501 is configured to receive power control instruction information sent by the network side for increasing the power of the HS-DPCCH channel;

The control unit 502 is configured to control the power of the HS-DPCCH channel according to the power of the E-DPCCH or E-DPDCH and the gain factor of the HS-DPCCH channel after the receiving unit 501 receives the power control indication information.

Wherein, the control unit 502 may include:

The amplitude ratio parameter acquisition subunit 5021 is used to acquire the amplitude ratio parameter A _hs of the HS-DPCCH, where A _hs is the non-quantized amplitude ratio transformed according to the values of △ACK, △NACK and △CQI, and its value range is in Between 0-1;

The gain factor acquisition subunit 5022 is used to acquire the HS-DPCCH according to the A _hs acquired by the amplitude scale parameter acquisition subunit 5021 and the gain factor β _ec of the compressed frame or the uncompressed frame of the E-DPCCH or E-DPDCH channel in the Boosting state Channel gain factor β _hs .

The control unit subunit 5023 can control the power of the HS-DPCCH channel according to the gain factor β _hs of the HS-DPCCH channel obtained by the gain factor obtaining subunit 5022 and the power of the E-DPCCH or E-DPDCH channel.

The power control device for the HS-DPCCH channel described in the embodiments of the present invention may be included in the UE, that is to say, after the UE receives the power control indication information for increasing the power of the HS-DPCCH channel sent by the network side, through the The described method controls the power of the HS-DPCCH channel.

An embodiment of the present invention also provides a power control device for an HS-DPCCH channel. Since the structure of the device is basically the same as that shown in FIG. 5 , only the functions performed by each unit are different, so no additional illustration is shown. The device can include:

A receiving unit, configured to receive power control indication information sent by the network side for increasing HS-DPCCH channel power;

The control unit is configured to control the power of the HS-DPCCH channel according to the increased quantization amplitude ratio parameter A _hs of the HS-DPCCH channel and the power of the DPCCH channel after the receiving unit receives the power control indication information.

Wherein, the control unit may include:

The amplitude scale parameter acquisition subunit is used to acquire the quantized amplitude scale parameter A _hs of the improved HS-DPCCH channel, and the acquisition process can refer to the corresponding description in the method embodiment;

The gain factor acquisition subunit is used to obtain the gain factor β _hs of the HS-DPCCH channel according to the quantized amplitude scale parameter A _hs acquired by the amplitude scale parameter acquisition subunit, and for the uncompressed frame and the compressed frame of the DPCCH channel, the gain factor β _hs The calculation methods of are different, and for details, please refer to the related descriptions in the method embodiments.

The control subunit can control the power of the HS-DPCCH channel according to the gain factor β _hs of the HS-DPCCH channel acquired by the gain factor acquisition subunit and the power of the DPCCH.

The power control device for the HS-DPCCH channel described in the embodiments of the present invention may be included in the UE, that is to say, after the UE receives the power control indication information for increasing the power of the HS-DPCCH channel sent by the network side, through the The described method controls the power of the HS-DPCCH channel.

Another embodiment of the present invention also provides a power control device for an HS-DPCCH channel. As shown in FIG. 6, the device may include:

The receiving unit 601 is configured to receive power control instruction information sent by the network side for increasing the power of the HS-DPCCH channel;

The control unit 602 is configured to control the power of the HS-DPCCH channel according to the increased quantization amplitude scale parameter A _hs of the HS-DPCCH channel and the power of the DPCCH channel after the receiving unit 601 receives the power control indication information.

Further, the control unit 602 may include:

The amplitude scale parameter acquisition subunit 6021 is used to acquire the quantized amplitude scale parameter A _hs of the improved HS-DPCCH channel;

Wherein, the amplitude scale parameter acquisition subunit 6021 may include:

The first amplitude ratio parameter acquisition module is used to obtain the first quantization amplitude ratio parameter of the HS-DPCCH according to the HS-DPCCH power offset amount in the non-boosting state after the promotion. The specific acquisition process can refer to the relevant embodiments. describe;

The second amplitude ratio parameter acquisition module determines the second quantization amplitude according to the first quantization amplitude ratio parameter acquired by the first amplitude ratio parameter acquisition module, and the power offset of E-DPCCH or E-DPDCH relative to DPCCH and the preset threshold A scale parameter value, where the second quantization amplitude scale parameter value is an increased quantization amplitude scale parameter.

Further, the second amplitude scale parameter acquisition module is used to combine the first quantization amplitude scale parameter and The preset first threshold is compared, if the first quantization amplitude scale parameter is greater than the first threshold, the second quantization amplitude scale parameter value is determined as the first threshold value, if the first quantization amplitude scale parameter is less than or equal to The first threshold determines the second quantization amplitude scale parameter as the first quantization amplitude scale parameter value; when the power offset of E-DPCCH or E-DPDCH relative to DPCCH is greater than the preset second threshold value, used for Comparing the first quantization amplitude scale parameter with a preset second threshold, if the first quantization amplitude scale parameter is less than or equal to the second threshold, determining the value of the second quantization amplitude scale parameter as the second threshold value, If the first quantization amplitude scale parameter is greater than the second threshold, the second quantization amplitude scale parameter is determined as the first quantization amplitude scale parameter value.

The gain factor acquisition subunit 6022 is used to acquire the gain factor β _hs of the HS-DPCCH channel according to the quantized amplitude scale parameter A _hs acquired by the amplitude scale parameter acquisition subunit 6021, and for the uncompressed frame and the compressed frame of the DPCCH channel, the gain factor The calculation methods of β _hs are different, for details, please refer to the relevant descriptions in the method embodiments.

The control subunit 603 may control the power of the HS-DPCCH channel according to the gain factor β _hs of the HS-DPCCH channel acquired by the gain factor acquisition subunit 602 and the power of the DPCCH.

To sum up, the technical solutions provided by the embodiments of the present invention can improve the demodulation performance of the HS-DPCCH channel, and further improve the throughput of the downlink.

Those of ordinary skill in the art can understand that the process of realizing the working mode in the above-mentioned embodiments can be completed by program instruction related hardware, and the program can be stored in a readable storage medium, and the program executes the above-mentioned method when executed. corresponding steps. The storage medium may be, for example: ROM/RAM, magnetic disk, optical disk, etc.

Apparently, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (21)

1. the Poewr control method of a High-Speed Dedicated Physical Control Channel is characterized in that, this method comprises:

When user equipment (UE) by non Boosting after the Boosting state switches, according to the power of the gain factor control HS-DPCCH channel of the power of enhancement type special channel E-DCH and High-Speed Dedicated Physical Control Channel HS-DPCCH channel.

2. method according to claim 1 is characterized in that, the gain factor of described HS-DPCCH channel obtains by following method:

Obtain the amplitude proportional parameter of HS-DPCCH channel, the amplitude proportional parameter of wherein said HS-DPCCH channel is non-quantization amplitude ratio;

Obtain the gain factor of HS-DPCCH channel, wherein, the gain factor of described HS-DPCCH channel is the amplitude proportional parameter of described HS-DPCCH channel and the product of the gain factor of E-DCH channel under the Boosting state.

3. the Poewr control method of a HS-DPCCH channel is characterized in that, this method comprises:

When UE by non Boosting after the Boosting state switches, according to the quantization amplitude scale parameter of the Dedicated Physical Control Channel HS-DPCCH after improving and the power of DPCCH channel HS-DPCCH is controlled.

4. method according to claim 3 is characterized in that, the quantization amplitude scale parameter after the described raising obtains by following method:

The value of the quantization amplitude scale parameter of HS-DPCCH channel under the non Boosting state is increased to the scope that sets in advance.

5. method according to claim 3 is characterized in that, the quantization amplitude scale parameter after the described raising obtains by following method:

Obtain the first quantization amplitude scale parameter of HS-DPCCH according to the HS-DPCCH power bias amount under the non-boosting state after promoting;

Determine the second quantization amplitude scale parameter value according to the first quantization amplitude scale parameter, E-DCH with respect to power bias and the default thresholding of DPCCH, the described second quantization amplitude scale parameter value is the quantization amplitude scale parameter of the HS-DPCCH after the described raising.

6. according to the described method of claim 5, it is characterized in that the HS-DPCCH power bias amount under the non-boosting state after the described lifting obtains by the following method:

Obtain HS-DPCCH power bias amount under the non-boosting state after the described lifting according to the mapping value increment of dynamic-configuration and the HS-DPCCH power bias amount under the non-boosting state, wherein, HS-DPCCH power bias amount under the non-boosting state comprises: △ ACK or △ NACK or △ CQI, the mapping value increment of described attitude configuration for from by obtain the high-level signaling or estimate to obtain by detecting.

7. method according to claim 5 is characterized in that, describedly determines that with respect to power bias and the default thresholding of DPCCH the second quantization amplitude scale parameter value comprises according to the first quantization amplitude scale parameter, E-DCH:

If described E-DCH with respect to the power bias of DPCCH greater than default parameter and less than presetting first threshold, described first quantization amplitude scale parameter and first thresholding of presetting are compared, if the described first quantization amplitude scale parameter is greater than this first thresholding, the second quantization amplitude scale parameter value is defined as this first threshold value, if described this first quantization amplitude scale parameter is less than or equal to this first thresholding, this second quantization amplitude scale parameter is defined as this first quantization amplitude scale parameter value.

8. method according to claim 5 is characterized in that, describedly determines that with respect to power bias and the default thresholding of DPCCH the second quantization amplitude scale parameter value comprises according to the first quantization amplitude scale parameter, E-DCH:

If described E-DCH with respect to the power bias of DPCCH greater than the second default threshold value, described first quantization amplitude scale parameter and preset second threshold are compared, if this first quantization amplitude scale parameter is less than or equal to this second thresholding, the second quantization amplitude scale parameter value is defined as this second threshold value, if this first quantization amplitude scale parameter greater than this second thresholding, is defined as this first quantization amplitude scale parameter value with this second quantization amplitude scale parameter.

9. according to claim 4 or 5 described methods, it is characterized in that, HS-DPCCH controlled, comprising according to the quantization amplitude scale parameter of the Dedicated Physical Control Channel HS-DPCCH after improving and the power of DPCCH channel:

Obtain the gain factor of HS-DPCCH channel according to the quantization amplitude scale parameter of the HS-DPCCH channel after the described raising;

According to the gain factor of described HS-DPCCH channel and the power of DPCCH channel the power of HS-DPCCH channel is controlled.

10. method according to claim 9 is characterized in that, the gain factor that described quantization amplitude scale parameter according to the HS-DPCCH channel after the described raising obtains the HS-DPCCH channel comprises:

If be the non-condensed frame of DPCCH channel, the gain factor of described HS-DPCCH channel is the product of the quantization amplitude scale parameter of the gain factor of DPCCH and the HS-DPCCH channel after the described raising;

If be the condensed frame of DPCCH channel, the gain factor of described HS-DPCCH channel is the gain factor β of j transformat combination TFC of condensed frame _{C, C, j}, the product of the pilot tone number of the every time slot of DPCCH channel of the quantization amplitude scale parameter of the HS-DPCCH channel after the described raising and condensed frame and the evolution ratio of the pilot tone number of the every time slot of DPCCH channel of non-condensed frame.

11. a network equipment is characterized in that, this network equipment comprises:

Detecting unit is used for whether switching to the Boosting state from non Boosting according to default Threshold detection UE;

Transmitting element is used for after described detecting unit detects described UE and switches to the Boosting state, sends to be used to improve the power control indication information of described HS-DPCCH channel power to described UE.

12. network equipment according to claim 11 is characterized in that, described transmitting element also is used for the indication information of described power control is sent to radio network controller.

13. a base station is characterized in that, described base station comprises claim 11 or 12 described network equipments.

14. the output control device of a HS-DPCCH channel is characterized in that, this device comprises:

Receiving element is used to receive the power control indication information that is used to improve the HS-DPCCH channel power that network side sends;

Control unit is used for after described receiving element receives described power control indication information, according to the power of the gain factor control HS-DPCCH channel of the power of E-DCH and HS-DPCCH channel.

15. device according to claim 14 is characterized in that, described control unit comprises:

Amplitude proportional parameter acquiring subelement is used to obtain the amplitude proportional parameter of HS-DPCCH;

Gain factor obtains subelement, is used for the amplitude proportional parameter of the HS-DPCCH that obtains according to described amplitude proportional parameter acquiring subelement, and the E-DCH channel under the Boosting state gain factor obtain the gain factor of described HS-DPCCH channel;

Control sub unit is used for obtaining according to described gain factor the power of the power control HS-DPCCH channel of the gain factor of the HS-DPCCH channel that subelement obtains and E-DCH channel.

16. a subscriber equipment is characterized in that, described subscriber equipment comprises claim 14 or 15 described devices.

17. the output control device of a HS-DPCCH channel is characterized in that, this device comprises:

Receiving element is used to receive the power control indication information that is used to improve the HS-DPCCH channel power that network side sends;

Control unit is used for according to the quantization amplitude scale parameter of the HS-DPCCH channel after improving and the power of DPCCH channel the power of HS-DPCCH channel being controlled after described receiving element receives described power control indication information.

18. device according to claim 17 is characterized in that, described control unit comprises:

Amplitude proportional parameter acquiring subelement is used to obtain the quantization amplitude scale parameter of the HS-DPCCH channel after the raising;

Gain factor obtains subelement, is used for obtaining according to the quantization amplitude scale parameter that described amplitude proportional parameter acquiring subelement obtains the gain factor of HS-DPCCH channel;

Control sub unit is used for obtaining according to described gain factor the power of the power control HS-DPCCH channel of the gain factor of the HS-DPCCH channel that subelement obtains and DPCCH.

19. device according to claim 18 is characterized in that, described amplitude proportional parameter acquiring subelement comprises:

The first amplitude proportional parameter acquisition module is used for obtaining according to the HS-DPCCH power bias amount under the non-boosting state after promoting the first quantization amplitude scale parameter of HS-DPCCH;

The second amplitude proportional parameter acquisition module, the first quantization amplitude scale parameter that obtains according to the described first amplitude proportional parameter acquisition module, and E-DCH determines the second quantization amplitude scale parameter value with respect to the power bias of DPCCH and default thresholding, and the described second quantization amplitude scale parameter value is the quantization amplitude scale parameter after improving.

20. device according to claim 19, it is characterized in that, the described second amplitude proportional parameter acquisition module, at E-DCH with respect to the power bias of DPCCH during greater than default parameter and less than presetting first threshold, described first quantization amplitude scale parameter and first thresholding of presetting are compared, if the described first quantization amplitude scale parameter is greater than this first thresholding, the second quantization amplitude scale parameter value is defined as this first threshold value, if described this first quantization amplitude scale parameter is less than or equal to this first thresholding, this second quantization amplitude scale parameter is defined as this first quantization amplitude scale parameter value;

At described E-DCH with respect to the power bias of DPCCH during greater than default second threshold value, described first quantization amplitude scale parameter and preset second threshold are compared, if this first quantization amplitude scale parameter is less than or equal to this second thresholding, the second quantization amplitude scale parameter value is defined as this second threshold value, if this first quantization amplitude scale parameter greater than this second thresholding, is defined as this first quantization amplitude scale parameter value with this second quantization amplitude scale parameter.

21. a subscriber equipment is characterized in that, described subscriber equipment comprises each described device of claim 17-20.

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