CN102761920A - Communication method, equipment and system - Google Patents

Communication method, equipment and system Download PDF

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Publication number
CN102761920A
CN102761920A CN2012102228579A CN201210222857A CN102761920A CN 102761920 A CN102761920 A CN 102761920A CN 2012102228579 A CN2012102228579 A CN 2012102228579A CN 201210222857 A CN201210222857 A CN 201210222857A CN 102761920 A CN102761920 A CN 102761920A
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dpcch
power offset
cell
offset value
interference ratio
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CN102761920B (en
Inventor
郭房富
徐凌峰
戴丁樟
黄鑫
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201210222857.9A priority Critical patent/CN102761920B/en
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Priority to PCT/CN2013/076936 priority patent/WO2014000562A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
    • H04W52/265—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account the quality of service QoS

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a communication method, communication equipment and a communication system, belonging to the field of communication. The communication method comprises the following steps that: equipment at a network side determines whether uplink signal quality of UE (User Equipment) with at least two uplinks meets a pre-set condition or not in a first cell; and the equipment at the network side reduces a power bias value of a data channel, and sends the reduced power bias value of the data channel to the UE. According to the communication method provided by the invention, after whether the uplink signal quality of the UE with at least two uplinks meets the pre-set condition in the first cell is determined by the equipment at the network side, the power bias value of the data channel is reduced, and the reduced power bias value of the data channel is sent to the UE, so that on the premise that QoS (Quality of Service) control of the data channel is controlled within a certain level through uplink OLPC (Outer Loop Power Control) algorithm convergence, an uplink DPCCH (Dedicated Physical Control Channel) receiving signal-interference ratio in the first cell is improved, so that the quality balance of an uplink and a downlink can be realized. Therefore, the communication method provides better data transmission services for the UE.

Description

Communication method, device and system
Technical Field
The present invention relates to the field of communications, and in particular, to a communication method, device, and system.
Background
In order to ensure that a UE (User Equipment) in a communication state can enjoy uninterrupted service while moving, a technical application is switched. In a communication network, handover techniques are classified into soft handover and hard handover. The hard handover means that only one wireless link is connected with the UE at the same time, and the soft handover means that a plurality of wireless links are connected with the UE at the same time. For a soft handover area scenario in which the UE is located in two cells with the same frequency, generally, the quality of downlink pilot signals received by the UE is equivalent, but the uplink received signal-to-interference ratios from the UE to the two cells may have a large difference, that is, the quality of uplink and downlink links of a cell with a low uplink received signal-to-interference ratio is unbalanced, so that the uplink demodulation performance of the link with good downlink quality is deteriorated, and even uplink and downlink desynchronization occurs, at this time, the user may affect the uplink and downlink throughput rate because the link cannot provide normal uplink communication service, thereby affecting the user experience.
When solving the problem of uplink and downlink imbalance in soft handover, the existing communication method mainly performs "desensitization" on a cell with a high uplink received signal-to-interference ratio, that is, increases the uplink background noise of the cell, and at this time, can reduce the uplink received signal-to-interference ratio from the UE to the cell, so that the uplink received signal-to-interference ratios from the UE to the two cells are as equal as possible, thereby realizing the balance of the uplink and downlink quality of the cell with a low uplink received signal-to-interference ratio.
In the process of implementing the invention, the inventor finds that the prior art has at least the following problems:
when the existing communication method is used for solving the problem of imbalance between an uplink and a downlink in soft handover, the adopted mode is mainly to increase the uplink background noise of a cell with high uplink Received signal-to-interference ratio, so that the uplink RTWP (Received Total wideband power) of the cell is increased along with the uplink background noise, interference to adjacent cells of other cells is increased along with the uplink background noise, and in severe cases, the uplink capacity and uplink coverage of the cell and surrounding cells are reduced, and the deterioration of main network performance such as call drop rate is caused.
Disclosure of Invention
In view of this, embodiments of the present invention provide a communication method, device, and system to solve the problem caused by uplink and downlink imbalance in soft handover. The technical scheme is as follows:
in one aspect, a communication method is provided, and the method includes:
the method comprises the steps that network side equipment determines that the uplink signal quality of User Equipment (UE) with at least two uplinks in a first cell meets a preset condition;
and the network side equipment reduces the power offset value of the data channel and sends the reduced power offset value of the data channel to the UE.
Optionally, the determining, by the network side device, that the quality of the uplink signal of the user equipment UE in the first cell, where at least two uplinks exist, meets the preset condition specifically includes:
the network side equipment determines that the uplink signal quality of the UE in the first cell is smaller than a first threshold value; or,
and the network side equipment determines that the difference value between the uplink signal quality of the UE in the first cell and the uplink signal quality of the UE in other cells reaches a second threshold value.
Optionally, the reducing, by the network side device, the power offset value of the data channel specifically includes:
and the network side equipment reduces the power offset value of a data channel according to the target compensation level of the receiving signal-to-interference ratio of the first cell dedicated physical control channel DPCCH.
Optionally, the reducing, by the network side device, the power offset value of the data channel according to the target compensation level of the first cell-specific physical control channel DPCCH received signal-to-interference ratio includes:
and/or the network side equipment reduces the power offset value of the uplink enhanced dedicated physical data channel (E-DPDCH) according to the target compensation level of the first cell DPCCH receiving signal-to-interference ratio.
Optionally, the reducing, by the network side device, the power offset value of the E-DPDCH according to the target compensation level of the DPCCH received signal-to-interference ratio of the first cell includes:
and the network side equipment reduces a reference Power Offset (PO) value corresponding to a reference enhanced transport format combination identifier (E-TFCI) according to the target compensation level of the received signal-to-interference ratio of the first cell DPCCH, and/or reduces a hybrid automatic repeat request (HARQ) PO value of each medium access control (MAC-d) flow according to the target compensation level of the received signal-to-interference ratio of the first cell DPCCH.
Optionally, the reducing, by the network side device, the power offset value of the data channel according to the target compensation level of the first cell-specific physical control channel DPCCH received signal-to-interference ratio includes:
the network side equipment determines a power offset difference value of a data channel according to a target compensation level of the first cell DPCCH receiving signal-to-interference ratio;
and reducing the power offset value of the data channel according to the power offset difference value of the data channel and the original power offset value of the data channel configured for the UE.
Optionally, the method further comprises:
and the network side equipment reduces the power offset value of the HS-DPCCH according to the target compensation level of the receiving signal-to-interference ratio of the high-speed dedicated physical control channel HS-DPCCH of the first cell, and sends the reduced power offset value of the HS-DPCCH to the UE.
Optionally, the reducing, by the network side device, the power offset value of the HS-DPCCH according to the target compensation level of the HS-DPCCH received signal-to-interference ratio of the first cell high speed dedicated physical control channel, includes:
the network side equipment determines the power offset difference of the HS-DPCCH according to the target compensation level of the HS-DPCCH receiving signal-to-interference ratio of the first cell;
and reducing the power offset value of the HS-DPCCH according to the power offset difference value of the HS-DPCCH and the original power offset value of the HS-DPCCH configured for the UE.
Optionally, the method further comprises:
and the network side equipment reduces the power offset value of the E-DPCCH according to the target compensation level of the receiving signal-to-interference ratio of the first cell enhanced dedicated physical control channel E-DPCCH, and sends the reduced power offset value of the E-DPCCH to the UE.
Optionally, the reducing, by the network side device, the power offset value of the E-DPCCH according to the target compensation level of the first cell enhanced dedicated physical control channel E-DPCCH received signal-to-interference ratio includes:
the network side equipment determines a power offset difference value of the E-DPCCH according to a target compensation level of the receiving signal-to-interference ratio of the first cell E-DPCCH;
and reducing the power offset value of the E-DPCCH according to the power offset difference value of the E-DPCCH and the original power offset value of the E-DPCCH configured for the UE.
In another aspect, a network-side device is further provided, where the device includes:
the device comprises a determining module, a judging module and a judging module, wherein the determining module is used for determining that the uplink signal quality of User Equipment (UE) with at least two uplinks in a first cell meets a preset condition;
the processing module is used for reducing the power offset value of the data channel;
and a sending module, configured to send the reduced power offset value of the data channel obtained by the processing module to the UE.
Optionally, the determining module is specifically configured to determine that the uplink signal quality of the UE in the first cell is less than a first threshold; or determining that the difference between the uplink signal quality of the UE in the first cell and the uplink signal quality of the UE in other cells reaches a second threshold.
Optionally, the processing module is specifically configured to reduce a power offset value of a data channel according to a target compensation level of the first cell-specific physical control channel DPCCH received signal-to-interference ratio.
Optionally, the processing module specifically includes:
a first processing unit, configured to reduce a power offset value of a DPDCH according to a target compensation level of a received sir of the DPCCH in the first cell;
and/or the second processing unit is used for reducing the power offset value of the E-DPDCH according to the target compensation level of the DPCCH receiving signal-to-interference ratio of the first cell.
Optionally, the second processing unit is specifically configured to reduce a reference power offset PO value corresponding to a reference enhanced transport format combination identifier E-TFCI according to the target compensation level of the received signal-to-interference ratio of the first cell DPCCH, and/or reduce a hybrid automatic repeat request power offset HARQ PO value of each MAC-d flow according to the target compensation level of the received signal-to-interference ratio of the first cell DPCCH.
Optionally, the processing module is specifically configured to determine a power offset difference of a data channel according to a target compensation level of the first cell DPCCH received signal-to-interference ratio; and reducing the power offset value of the data channel according to the power offset difference value of the data channel and the original power offset value of the data channel configured for the UE.
Optionally, the processing module is further configured to reduce a power offset value of the HS-DPCCH according to a target compensation level of a received signal-to-interference ratio of the HS-DPCCH of the first cell high speed dedicated physical control channel;
the sending module is further configured to send the reduced power offset value of the HS-DPCCH obtained by the processing module to the UE.
Optionally, the processing module is specifically configured to determine a power offset difference of the HS-DPCCH according to a target compensation level of the HS-DPCCH received signal-to-interference ratio of the first cell; and reducing the power offset value of the HS-DPCCH according to the power offset difference value of the HS-DPCCH and the original power offset value of the HS-DPCCH configured for the UE.
Optionally, the processing module is further configured to reduce a power offset value of the E-DPCCH according to a target compensation level of a received signal-to-interference ratio of the first cell enhanced dedicated physical control channel E-DPCCH;
the sending module is further configured to send the reduced power offset value of the E-DPCCH obtained by the processing module to the UE.
Optionally, the processing module is specifically configured to determine a power offset difference of the E-DPCCH according to a target compensation level of a received signal-to-interference ratio of the E-DPCCH of the first cell; and reducing the power offset value of the E-DPCCH according to the power offset difference value of the E-DPCCH and the original power offset value of the E-DPCCH configured for the UE.
In another aspect, a communication system is further provided, where the system includes any one of the above network-side devices.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
after the network side equipment determines that the uplink signal quality of the UE with at least two uplinks in a first cell meets a preset condition, the power offset value of a data channel is reduced, and the reduced power offset value of the data channel is sent to the UE, so that the uplink DPCCH receiving signal-to-interference ratio of the first cell is lifted on the premise that the uplink OLPC algorithm is converged to enable the QoS of the data channel to be controlled at a fixed level, further uplink and downlink balance during soft handover is achieved, and better data transmission service is provided for the UE.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of a soft handover area of a co-frequency cell according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a relationship between a received signal-to-interference ratio and a power offset of a data channel according to an embodiment of the present invention;
fig. 3 is a flowchart of a communication method according to an embodiment of the present invention;
fig. 4 is a flowchart of a communication method according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of a network-side device according to a third embodiment of the present invention;
fig. 6 is a schematic structural diagram of a processing module according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Example one
For the soft handover scenario shown in fig. 1, when the UE moves from a cell with high pilot transmission power (hereinafter referred to as a left cell) to a cell with low pilot transmission power (hereinafter referred to as a right cell), point a is a point where uplink losses of the two cells are equal; a soft handover 1A event occurs at the point B, an SRNC (Serving Radio Network Controller) establishes a link in a right cell, and the UE enters a soft handover region; c, a service cell update 1D event occurs, and the SRNC updates the UE service cell to the right cell; and D, the soft handover 1B event occurs, namely the SRNC deletes the link of the UE under the left cell. When the UE is in a soft handover area of two cells with the same frequency, that is, between a point B and a point C, generally, the quality of downlink pilot signals received by the UE is basically equivalent, but the uplink received signal-to-interference ratios from the UE to the two cells may have a large difference, that is, the quality of uplink and downlink links of the cell with a low uplink received signal-to-interference ratio is unbalanced, so that the demodulation performance of the uplink DPCCH of the link with good downlink quality is deteriorated, and even uplink desynchronization occurs, at this time, the user may affect the uplink and downlink throughput because the link cannot provide normal uplink communication service, thereby affecting the user experience.
In addition, fig. 1 indicates only one of the reasons causing the uplink and downlink imbalance scenario, that is, the difference between the transmission powers of the pilot P-CPICH (primary-common pilot Channel) of the two cells is large (e.g. above 6 dB), but there are other reasons that may also cause the uplink and downlink imbalance scenario, for example, when the difference between the numbers of receiving antennas of the two cells is large (e.g. 4 antennas is relatively different from a single antenna), or the difference between the uplink and downlink noise of the two cells is large, the uplink receiving signal-to-interference ratio of the UE to the two cells may be large, but the downlink quality is substantially equivalent, and even the downlink quality of the cell with a low uplink receiving signal-to-interference ratio is better.
However, as can be seen from the relation diagram of the received signal to interference ratio of the data Channel and the power offset shown in fig. 2, the received signal to interference ratio of the data Channel = DPCCH (Dedicated Physical Control Channel) + the power offset of the data Channel. Under the premise that the rate of the user Data is not changed, due to the normal function of the OLPC (Outer loop power Control) algorithm, the QoS (Quality of Service) of the user can be smoothly controlled, for example, periodically monitoring the Number of HARQ Retransmissions of the MAC (Media Access Control) es/MAC-e PDU (Protocol Data Unit), to dynamically adjust the SIR (Signal to Interference Ratio) target value, so as to ensure that the average retransmission Number of the Service always converges to the "target retransmission Number", thereby making the received SIR of the Data channel always stable at a fixed level, so as to reduce the power offset of the Data channel, and raise the DPCCH received SIR on the premise that the received SIR of the Data channel is basically unchanged, thereby increasing DPCCHSIR level and keeping balance between uplink and downlink.
In conjunction with the above analysis, for the soft handover scenario shown in fig. 1, this embodiment provides a communication method, and for convenience of description, this embodiment and the following embodiments refer to a cell with a low uplink received signal to interference ratio as a first cell, where in R99, the first cell is a cell that establishes an uplink with a UE and has poor uplink signal quality, and for HSDPA (High Speed downlink packet Access), the first cell is a serving cell. Referring to fig. 3, the method flow provided by this embodiment is specifically as follows:
301: the method comprises the steps that network side equipment determines that the quality of uplink signals of UE (user equipment) with at least two uplinks in a first cell meets a preset condition;
in this embodiment, specific preset conditions are not limited, and the network side device determines that the uplink signal quality of the UE having at least two uplinks in the first cell meets the preset conditions, including but not limited to:
the method comprises the steps that network side equipment determines that the uplink signal quality of UE in a first cell is smaller than a first threshold value; or,
and the network side equipment determines that the difference value between the uplink signal quality of the UE in the first cell and the uplink signal quality of the UE in other cells reaches a second threshold value.
Note that the other cells described above refer to cells other than the first cell among the cells in which the uplink is established with the UE. The first threshold and the second threshold may be set according to actual situations, and the specific sizes of the first threshold and the second threshold are not limited in this embodiment or in subsequent embodiments.
302: and the network side equipment reduces the power offset value of the data channel and sends the reduced power offset value of the data channel to the UE.
The network side device reduces the power offset value of the data channel, including but not limited to:
and the network side equipment reduces the power offset value of the data channel according to the target compensation level of the DPCCH receiving signal-to-interference ratio of the first cell.
Further, the network side device reduces the power offset value of the data channel according to the target compensation level of the first cell DPCCH receiving signal-to-interference ratio, including but not limited to:
and/or the network side equipment reduces the power offset value of the uplink DPDCH according to the target compensation level of the first cell DPCCH receiving signal-to-interference ratio.
The method for reducing the power offset value of the uplink E-DPDCH by the network side equipment according to the target compensation level of the received signal-to-interference ratio of the first cell DPCCH includes but is not limited to:
the network side equipment reduces a reference PO (Power offset) value corresponding to a reference E-TFCI (Enhanced-Transport Format Combination Indicator) according to the target compensation level of the first cell DPCCH receiving signal-to-interference ratio, and/or the network side equipment reduces the HARQ PO value of each MAC-d flow according to the target compensation level of the first cell DPCCH receiving signal-to-interference ratio.
Optionally, the network side device reduces the power offset value of the data channel according to the target compensation level of the first cell DPCCH received signal-to-interference ratio, including but not limited to:
the network side equipment determines the power offset difference value of a data channel according to the target compensation level of the first cell DPCCH receiving signal-to-interference ratio;
and reducing the power offset value of the data channel according to the power offset difference value of the data channel and the original power offset value of the data channel configured for the UE.
Further, for the scenario shown in fig. 1, if the cell with a low received signal-to-interference ratio is just the HSDPA serving cell, the demodulation is seriously deteriorated due to a serious shortage of the received signal-to-interference ratio of the HS-DPCCH (High Speed-Dedicated Physical Control Channel), so that the HSDPA downlink throughput is sharply decreased. For this reason, the method provided in this embodiment further includes:
and the network side equipment reduces the power offset value of the HS-DPCCH according to the target compensation level of the HS-DPCCH receiving signal-to-interference ratio of the first cell, and sends the reduced power offset value of the HS-DPCCH to the UE so as to enable the HS-DPCCH to demodulate normally.
The network side device reduces the power offset value of the HS-DPCCH according to the target compensation level of the HS-DPCCH receiving signal-to-interference ratio of the first cell, and the method comprises the following steps of:
the network side equipment determines the power offset difference value of the HS-DPCCH according to the target compensation level of the HS-DPCCH receiving signal-to-interference ratio of the first cell;
and reducing the power offset value of the HS-DPCCH according to the power offset difference value of the HS-DPCCH and the original power offset value of the HS-DPCCH configured for the UE.
Further, for the uplink HSUPA link, in order to enable the HSUPA transmission in the cell with low uplink received signal-to-interference ratio to approach or reach a normal operating state, the method provided in this embodiment further includes:
and the network side equipment reduces the power offset value of the E-DPCCH according to the target compensation level of the receiving signal-to-interference ratio of the E-DPCCH of the first cell, and sends the reduced power offset value of the E-DPCCH to the UE so as to enable the E-DPCCH to demodulate normally, thereby enabling the HSUPA transmission of the first cell to reach a normal working state.
The network side device reduces the power offset value of the E-DPCCH according to the target compensation level of the E-DPCCH receiving signal-to-interference ratio of the first cell, and the method comprises the following steps:
the network side equipment determines the power offset difference value of the E-DPCCH according to the target compensation level of the receiving signal-to-interference ratio of the E-DPCCH of the first cell;
and reducing the power offset value of the E-DPCCH according to the power offset difference value of the E-DPCCH and the original power offset value of the E-DPCCH configured for the UE.
It should be noted that the method provided in this embodiment may be triggered by a symbolic event that the UE enters the area between the point B and the point C as shown in fig. 1, for example, triggered by a soft handover event such as 1A, or 1B, or 1C, or 1D; the reconfiguration event may also be triggered by some existing reconfiguration events at the network side, for example, by a reconfiguration event such as service addition, deletion, or modification; the method may also be triggered periodically, for example, periodically determining an uplink signal-to-interference ratio difference inherent in the left and right cells, where the uplink signal-to-interference ratio difference is mainly reflected in a difference of uplink path loss represented by a downlink CPICH (Common Pilot Channel) transmission power difference between the left and right cells, a difference of numbers of receiving antennas of the left and right cells, a difference of bottom noise of the left and right cells, and the like, and if the difference is small, it indicates that the uplink balancing problem is not serious, and if the difference is large, the method of the present embodiment is triggered to be executed.
In addition to the above-mentioned several ways of triggering to execute the communication method provided in this embodiment, there may be other triggering ways, and this embodiment does not limit the specific triggering way.
In the method provided by this embodiment, after determining that the uplink signal quality of the UE having at least two uplinks in the first cell meets the preset condition, the network side device reduces the power offset value of the data channel, and sends the reduced power offset value of the data channel to the UE, so as to raise the uplink DPCCH reception signal-to-interference ratio of the first cell on the premise that the uplink OLPC algorithm converges to control the QoS of the data channel at a fixed level, thereby achieving the balance of uplink and downlink quality during soft handover, and thus providing better data transmission service for the UE; in addition, the HS-DPCCH is normally demodulated and the HSDPA throughput rate is normal by configuring the reduced power offset value of the HS-DPCCH for the UE; the reduced power offset value of the E-DPCCH is configured for the UE, so that the receiving signal-to-interference ratio of the E-DPCCH is close to or reaches the level required by normal work, normal demodulation can be realized, and the HSUPA transmission of the first cell is also close to or reaches the normal work state.
In order to more clearly illustrate the methods provided by the above embodiments, and in combination with the above, the following second embodiment is taken as an example to illustrate the uplink method in soft handover, and see the following second embodiment for details:
example two
In combination with the content of the first embodiment, no matter how the method provided by this embodiment is triggered to be executed, for the soft handover scenario shown in fig. 1, since a large difference may occur between uplink received signal-to-interference ratios of the UE to the two cells, that is, the uplink quality and the downlink quality of the cell with a low uplink received signal-to-interference ratio are unbalanced, the uplink DPCCH demodulation performance of the link with a good downlink quality is deteriorated, and even uplink desynchronization occurs, at this time, the user may affect the uplink and downlink throughput because the link cannot provide a normal uplink communication service, thereby affecting the user experience. As can be seen from the relationship diagram between the received sir and the power offset of the data channel shown in fig. 2, if the received sir of the data channel = DPCCH received sir + power offset of the data channel, the method provided by this embodiment achieves the purpose of raising the uplink DPCCH sir by reducing the power offset of the uplink data channel with respect to the DPCCH without eliminating the uplink received sir difference between the left and right cells, so that the DPCCH sirs of the two cells can both obtain the same amplitude rise, thereby avoiding uplink DPCCH demodulation performance deterioration and even uplink desynchronization in the cell with a low uplink received sir, and achieving the balance of the uplink and downlink during soft handover.
For convenience of description, in this embodiment, a network side device is an RNC (Radio network controller) in a soft handover scenario shown in fig. 1, and a cell with a low uplink received signal-to-interference ratio in soft handover is a left cell, which is taken as an example, and a detailed explanation is performed on the communication method provided in this embodiment. Referring to fig. 4, the method flow provided by this embodiment is specifically as follows:
401: the RNC determines that the uplink signal quality of the UE with at least two uplinks in the left cell meets a preset condition;
specifically, the manner in which the RNC determines that the uplink signal quality of the UE with at least two uplinks in the left cell meets the preset condition includes, but is not limited to:
the RNC determines that the uplink signal quality of the UE in the left cell is less than a first threshold value; or,
the RNC determines that the difference value of the uplink signal quality of the UE in the left cell and the uplink signal quality of the UE in other cells reaches a second threshold value.
The first threshold and the second threshold may be set according to actual conditions, and the specific sizes of the first threshold and the second threshold are not limited in this embodiment.
402: the RNC determines the power offset difference value of a data channel according to the target compensation level of the receiving signal-to-interference ratio of the DPCCH of the left cell;
aiming at the step, when the purpose of raising the uplink DPCCH signal-to-interference ratio is achieved by reducing the power offset of the uplink data channel relative to the DPCCH, for the right cell with the originally good uplink received signal-to-interference ratio, the right cell uplink power is wasted by raising the uplink DPCCH signal-to-interference ratio, so that the RTWP of the right cell is raised and the uplink capacity of the right cell is influenced. Therefore, the DPCCH SIR level of the left cell is not suitable to be raised to the same level as the current DPCCH SIR of the right cell, and the target compensation level of the DPCCH reception SIR of the left cell can be the lowest DPCCH SIR level when RL loss is not generated in the left cell and can be compensated to the highest DPCCH SIR level required for normal data demodulation only by ensuring that the left cell with low uplink reception SIR does not generate RL loss. Regardless of the specific target offset level of the received sir of the left cell DPCCH, the difference between the target offset level of the received sir of the left cell DPCCH and the current received sir level of the left cell DPCCH can be determined as the power offset difference of the data channel.
In addition, the data channel includes an uplink DPDCH of R99 and/or an uplink E-DPDCH of HSUPA, and the steps can be specifically divided into the following three cases:
in the first case: if the data channel is an uplink DPDCH, determining the power offset difference of the uplink DPDCH according to the target compensation level of the received signal-to-interference ratio of the DPCCH of the left cell, namely determining the difference between the target compensation level of the received signal-to-interference ratio of the DPCCH of the left cell and the current DPCCH received signal-to-interference ratio level of the left cell as the power offset difference of the uplink DPDCH;
in the second case: if the data channel is an uplink E-DPDCH, determining the power offset difference of the uplink E-DPDCH according to the target compensation level of the DPCCH receiving signal-to-interference ratio of the left cell, namely determining the difference between the target compensation level of the DPCCH receiving signal-to-interference ratio of the left cell and the current DPCCH receiving signal-to-interference ratio level of the left cell as the power offset difference of the uplink E-DPDCH;
in the third case: if the data channels are uplink DPDCH and uplink E-DPDCH, the step needs to determine the power offset difference of the uplink DPDCH and the power offset difference of the uplink E-DPDCH according to the target compensation level of the left cell DPCCH received signal-to-interference ratio, i.e., the difference between the target compensation level of the left cell DPCCH received signal-to-interference ratio and the current DPCCH received signal-to-interference ratio level of the left cell is determined as the power offset difference of the uplink DPDCH and the power offset difference of the uplink E-DPDCH. In this case, the difference between the target compensation level of the DPCCH received signal-to-interference ratio of the left cell and the current level of the DPCCH received signal-to-interference ratio of the left cell is the sum of the power offset difference of the uplink DPDCH and the power offset difference of the uplink E-DPDCH, and the specific allocation ratio between the power offset difference of the uplink DPDCH and the power offset difference of the uplink E-DPDCH is not specifically limited in this embodiment.
For the second and third cases, when the data channel is an uplink E-DPDCH, the power offset value of the E-DPDCH can be represented by a reference PO value, and to distinguish which reference PO corresponds to the reference PO value, the power offset value needs to be identified by a corresponding reference E-TFCI. Therefore, in the second and third cases, when the power offset difference of the E-DPDCH is determined according to the target offset level of the received sir of the left cell DPCCH, the reference PO difference and the corresponding reference E-TFCI may be determined according to the target offset level of the received sir of the left cell DPCCH, and the reference PO difference is used as the power offset difference of the E-DPDCH.
403: reducing the power offset value of the data channel according to the power offset difference value of the data channel and the original power offset value of the data channel configured for the UE;
specifically, when the power offset value of the data channel is reduced according to the power offset difference value of the data channel and the original power offset value of the data channel configured for the UE, since the power offset difference value of the data channel has been determined in the above step, the reduced power offset value of the data channel can be obtained by combining the power offset difference value of the data channel and the original power offset difference value of the data channel.
In combination with different types of data channels, this step can be specifically divided into the following three cases:
in the first case: if the data channel is an uplink DPDCH, after determining the power offset difference of the uplink DPDCH in step 402, reducing the power offset value of the uplink DPDCH according to the power offset difference of the uplink DPDCH and the original power offset value of the uplink DPDCH configured for the UE, that is, combining the power offset difference of the uplink DPDCH and the original power offset difference of the uplink DPDCH and then using the combined power offset difference as the power offset value of the reduced data channel obtained in the step;
in the second case: if the data channel is an uplink E-DPDCH, after determining the power offset difference of the uplink E-DPDCH in step 402, reducing the power offset value of the uplink E-DPDCH according to the power offset difference of the uplink E-DPDCH and the original power offset value of the uplink E-DPDCH configured for the UE, that is, combining the power offset difference of the uplink E-DPDCH and the original power offset difference of the uplink E-DPDCH and then using the combined power offset difference as the reduced power offset value of the data channel obtained in the step;
in the third case: if the data channel is an uplink DPDCH and an uplink E-DPDCH, after determining the power offset difference of the uplink DPDCH and the power offset difference of the uplink E-DPDCH in step 402, combining the power offset difference of the uplink DPDCH and the original power offset difference of the uplink DPDCH to obtain a reduced power offset value of the uplink DPDCH, combining the power offset difference of the uplink E-DPDCH and the original power offset difference of the uplink E-DPDCH to obtain a reduced power offset value of the uplink E-DPDCH, and then using the reduced power offset value of the uplink DPDCH and the reduced power offset value of the uplink E-DPDCH as the reduced power offset value of the data channel obtained in step.
For the second case and the third case in this step, when the data channel is an uplink E-DPDCH, the reduced power offset value of the uplink E-DPDCH may be represented by a reference PO value, and to distinguish which reference PO corresponds to the reference PO value, the reference PO value needs to be identified by a corresponding reference E-TFCI. Therefore, when the power offset value of the uplink E-DPDCH is reduced in the second case and the third case in this step, the reference PO value may be reduced according to the reference PO difference and the original reference PO value allocated to the UE, and the reduced reference PO value is used as the reduced power offset value of the uplink E-DPDCH. Wherein, the reduced reference PO value corresponds to the same reference E-TFCI as the original reference PO value allocated to the UE.
404: and sending the reduced power offset value of the data channel to the UE.
For this step, when the reduced power offset value of the data channel is sent to the UE, the reduced power offset value of the data channel may be carried in a configuration signaling and sent to the UE, where the configuration signaling may include, but is not limited to, an existing ACTIVESET UPDATE configuration signaling, a RADIO BEARER configuration signaling, a TRANSPORT channel configuration signaling, and a PHYSICAL CHANNEL configuration signaling, and of course, other existing configuration signaling may also be selected to carry the reduced power offset value of the data channel, or a new configuration signaling is extended to carry the reduced power offset value of the data channel for the method provided in this embodiment, and specifically which configuration signaling is used to carry the reduced power offset value of the data channel, which is not specifically limited in this embodiment. When the configuration signaling carrying the reduced power offset value of the data channel is sent, the specific sending method may be implemented according to the existing signaling sending method, which is also not specifically limited in this embodiment. After receiving the reduced power offset value of the data channel configured by the RNC, the UE may adjust the uplink to achieve uplink and downlink balance in soft handover.
Further, for the scenario shown in fig. 1, if the cell with a low received signal to interference ratio is also the HSDPA serving cell, in order to ensure that the HSDPA throughput of the left cell is normal, and make the received signal to interference ratio of the HS-DPCCH reach the level of normal operation, the method provided in this embodiment further includes:
the RNC reduces the power offset value of the HS-DPCCH according to the target compensation level of the receiving signal-to-interference ratio of the HS-DPCCH of the left cell;
and sending the reduced power offset value of the HS-DPCCH to the UE so that the HS-DPCCH demodulates normally.
The target compensation level of the HS-DPCCH received signal-to-interference ratio of the left cell may be a level at which the HS-DPCCH received signal-to-interference ratio reaches normal operation, and the manner in which the RNC decreases the power offset value of the HS-DPCCH according to the target compensation level of the HS-DPCCH received signal-to-interference ratio of the left cell is similar to the manner in which the RNC decreases the power offset value of the data channel according to the target compensation level of the DPCCH received signal-to-interference ratio of the left cell, and will not be described herein again. The way that the RNC reduces the power offset value of the HS-DPCCH according to the target compensation level of the HS-DPCCH receiving signal-to-interference ratio of the left cell includes but is not limited to:
the RNC determines the power offset difference value of the HS-DPCCH according to the target compensation level of the HS-DPCCH receiving signal-to-interference ratio of the left cell;
and reducing the power offset value of the HS-DPCCH according to the power offset difference value of the HS-DPCCH and the original power offset value of the HS-DPCCH configured for the UE.
Further, in order to ensure that the HSUPA transmission of the left cell can also approach or reach the normal operating state, and the received signal-to-interference ratio of the E-DPCCH approaches or reaches the normal operating state, the method provided in this embodiment further includes:
the RNC reduces the power offset value of the E-DPCCH according to the target compensation level of the receiving signal-to-interference ratio of the E-DPCCH of the left cell;
and sending the reduced power offset value of the E-DPCCH to the UE so that the E-DPCCH is demodulated normally and the HSUPA transmission of the left cell reaches a normal working state.
The target compensation level of the E-DPCCH received sir of the left cell may be a level at which the E-DPCCH received sir normally operates, and the manner in which the RNC decreases the power offset value of the E-DPCCH according to the target compensation level of the E-DPCCH received sir of the left cell is similar to the manner in which the RNC decreases the power offset value of the data channel according to the target compensation level of the DPCCH received sir of the left cell, and will not be described herein again. The RNC reduces the power offset value of the E-DPCCH according to the target offset level of the left cell E-DPCCH received signal-to-interference ratio, including but not limited to:
the RNC determines the power offset difference value of the E-DPCCH according to the target compensation level of the receiving signal-to-interference ratio of the E-DPCCH of the left cell;
and reducing the power offset value of the E-DPCCH according to the power offset difference value of the E-DPCCH and the original power offset value of the E-DPCCH configured for the UE.
It should be noted that, for the case that the RNC needs to send the reduced power offset value of the data channel to the UE, and also needs to send the reduced power offset value of the HS-DPCCH and/or the reduced power offset value of the E-DPCCH to the UE, different configuration signaling may be respectively used for sending, but in order to reduce an additional signaling configuration process, thereby reducing signaling processing overhead and reducing a call drop risk of a cell edge user, what kind of sending manner is specifically used may be completed in one signaling flow as much as possible, and this embodiment is not particularly limited.
In addition, since a Heterogeneous Network (HetNet) mainly employs a Heterogeneous networking technology, user interference between macro and micro domains is substantially negligible. However, the inter-frequency networking needs to consume more frequency band resources, and if the HetNet co-frequency networking is performed, additional frequency bands do not need to be consumed, so the HetNet co-frequency networking becomes a hot spot of current research. However, the biggest problem of the HetNet co-frequency networking is that macro-micro interference is serious. When the UE is in the soft handover area of the macro-cell, although the quality of the downlink pilot signal received by the UE from the macro-cell is equivalent, the difference between the pilot transmission powers of the macro-cell is large (e.g., 6dB or 13 dB), which results in a large difference between the path loss of the uplink in the handover area, and thus the uplink and downlink are seriously unbalanced, and at this time, the macro-cell is prone to uplink desynchronization or severe degradation of HS DPCCH demodulation, and the like. In addition, because macro-macro networking has similar problems, the method provided in this embodiment is also applicable to macro-macro networking, and certainly, the method provided in this embodiment may be applicable to other scenarios having similar problems besides HetNet co-frequency networking and macro-macro networking, and this embodiment does not limit the specific scenarios to which the method provided in this embodiment is applied.
In the method provided by this embodiment, after determining that the uplink signal quality of the UE having at least two uplinks in the first cell meets the preset condition, the network side device reduces the power offset value of the data channel, and sends the reduced power offset value of the data channel to the UE, so as to raise the uplink DPCCH reception signal-to-interference ratio of the first cell on the premise that the uplink OLPC algorithm converges to control the QoS of the data channel at a fixed level, thereby implementing uplink and downlink balance during soft handover, and thus providing better data transmission service for the UE; in addition, the power offset value of the HS-DPCCH after being reduced is configured for the UE, so that the HS-DPCCH is normally demodulated, and the HSDPA throughput rate is ensured; the E-DPCCH receiving signal-to-interference ratio is close to or reaches the level required by normal work by configuring the reduced power offset value of the E-DPCCH for the UE, and normal demodulation can be realized, so that the HSUPA transmission of the cell with the low uplink receiving signal-to-interference ratio can be close to or reach the normal work state.
EXAMPLE III
The present embodiment provides a network side device, where the device is configured to execute the communication methods provided in the first embodiment and the second embodiment, referring to fig. 5, the device includes:
a determining module 51, configured to determine that uplink signal quality of a UE having at least two uplinks in a first cell meets a preset condition;
a processing module 52 for reducing the power offset value of the data channel;
a sending module 53, configured to send the reduced power offset value of the data channel obtained by the processing module 52 to the UE.
The determining module 51 is specifically configured to determine that the uplink signal quality of the UE in the first cell is less than a first threshold; or determining that the difference value between the uplink signal quality of the UE in the first cell and the uplink signal quality of the UE in other cells reaches a second threshold value.
The processing module 52 is specifically configured to reduce the power offset value of the data channel according to a target backoff level of the first cell DPCCH received signal-to-interference ratio.
For a way of reducing the power offset value of the data channel by the processing module 52, reference may be specifically made to the related descriptions of step 402 to step 403 in the second embodiment, which is not described herein again. The manner for the sending module 53 to send the reduced power offset value of the data channel to the UE is described in detail in step 404 in the second embodiment, and details are not described herein again.
Optionally, with reference to the description related to steps 402 to 403 in the second embodiment, referring to fig. 6, the processing module 52 specifically includes:
a first processing unit 521, configured to reduce a power offset value of the uplink DPDCH according to a target compensation level of a received signal-to-interference ratio of the DPCCH of the first cell;
and/or the second processing unit 522 is configured to reduce the power offset value of the uplink E-DPDCH according to the target compensation level of the DPCCH received signal-to-interference ratio of the first cell.
The second processing unit 522 is specifically configured to reduce a reference PO value corresponding to the reference E-TFCI according to the target compensation level of the received signal-to-interference ratio of the first cell DPCCH, and/or reduce an HARQ PO value of each MAC-d stream according to the target compensation level of the received signal-to-interference ratio of the first cell DPCCH.
Further, the processing module 52 is specifically configured to determine a power offset difference of the data channel according to a target compensation level of the DPCCH received signal-to-interference ratio of the first cell; and reducing the power offset value of the data channel according to the power offset difference value of the data channel and the original power offset value of the data channel configured for the UE.
Optionally, in combination with the description related to step 404 in the second embodiment, the processing module 52 is further configured to reduce the power offset value of the HS-DPCCH according to the target compensation level of the HS-DPCCH received signal-to-interference ratio of the first cell;
and the sending module 53 is further configured to send the reduced power offset value of the HS-DPCCH obtained by the processing module 52 to the UE.
Further, the processing module 52 is specifically configured to determine a power offset difference of the HS-DPCCH according to a target compensation level of the HS-DPCCH received signal-to-interference ratio of the first cell; and reducing the power offset value of the HS-DPCCH according to the power offset difference value of the HS-DPCCH and the original power offset value of the HS-DPCCH configured for the UE.
Optionally, in combination with the related description of step 404 in the second embodiment, the processing module 52 is further configured to reduce the power offset value of the E-DPCCH according to the target compensation level of the received signal-to-interference ratio of the E-DPCCH in the first cell;
and the sending module 53 is further configured to send the reduced power offset value of the E-DPCCH obtained by the processing module 52 to the UE.
Further, the processing module 52 is specifically configured to determine a power offset difference of the E-DPCCH according to a target compensation level of the E-DPCCH received signal-to-interference ratio of the first cell; and reducing the power offset value of the E-DPCCH according to the power offset difference value of the E-DPCCH and the original power offset value of the E-DPCCH configured for the UE.
It should be noted that the network side device provided in this embodiment may specifically be an RNC or other network side devices, and this embodiment does not limit the specific form of the network side device.
In the device provided in this embodiment, after determining that the uplink signal quality of the UE having at least two uplinks in the first cell meets the preset condition, the power offset value of the data channel is reduced, and the reduced power offset value of the data channel is sent to the UE, so as to raise the uplink DPCCH received signal-to-interference ratio of the first cell to a target compensation level on the premise that the uplink OLPC algorithm converges to control the QoS of the data channel to a fixed level, thereby achieving uplink and downlink quality balance during soft handover, and thus providing better data transmission service for the UE; in addition, the power offset of the reduced HS-DPCCH is configured for the UE, so that the HS-DPCCH is demodulated normally, and the HSDPA throughput rate is normal; the E-DPCCH receiving signal-to-interference ratio is close to or reaches the level required by normal work by configuring the reduced power offset value of the E-DPCCH for the UE, and normal demodulation can be realized, so that the HSUPA transmission of the cell with the low uplink receiving signal-to-interference ratio can be close to or reach the normal work state.
Example four
The present embodiment provides a communication system, which includes the network side device provided in the third embodiment.
In the system provided in this embodiment, after determining that the uplink signal quality of the UE having at least two uplinks in the first cell meets the preset condition, the network side device reduces the power offset value of the data channel, and sends the reduced power offset value of the data channel to the UE, so as to raise the uplink DPCCH received signal-to-interference ratio of the first cell to a target compensation level on the premise that the uplink OLPC algorithm converges to control the QoS of the data channel to a fixed level, thereby realizing uplink and downlink link balance during soft handover, and thus providing better data transmission service for the UE; in addition, the HS-DPCCH is normally demodulated and the HSDPA throughput rate is normal by configuring the reduced power offset value of the HS-DPCCH for the UE; the E-DPCCH receiving signal-to-interference ratio is close to or reaches the level required by normal work by configuring the reduced power offset value of the E-DPCCH for the UE, and normal demodulation can be realized, so that the HSUPA transmission of the cell with the low uplink receiving signal-to-interference ratio can be close to or reach the normal work state.
It should be noted that: in the network side device provided in the foregoing embodiment, when performing communication, only the division of the functional modules is illustrated, and in practical applications, the function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above. In addition, the network side device, the communication system, and the communication method provided in the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
It will be understood by those skilled in the art that all or part of the steps of implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (21)

1. A method of communication, the method comprising:
the method comprises the steps that network side equipment determines that the uplink signal quality of User Equipment (UE) with at least two uplinks in a first cell meets a preset condition;
and the network side equipment reduces the power offset value of the data channel and sends the reduced power offset value of the data channel to the UE.
2. The method according to claim 1, wherein the determining, by the network side device, that the uplink signal quality of the user equipment UE in the first cell, where at least two uplinks exist, meets the preset condition specifically includes:
the network side equipment determines that the uplink signal quality of the UE in the first cell is smaller than a first threshold value; or,
and the network side equipment determines that the difference value between the uplink signal quality of the UE in the first cell and the uplink signal quality of the UE in other cells reaches a second threshold value.
3. The method according to claim 1 or 2, wherein the reducing, by the network side device, the power offset value of the data channel specifically includes:
and the network side equipment reduces the power offset value of a data channel according to the target compensation level of the receiving signal-to-interference ratio of the first cell dedicated physical control channel DPCCH.
4. The method of claim 3, wherein the network side device decreases the power offset value of the data channel according to the target compensation level of the first cell-specific physical control channel (DPCCH) received signal-to-interference ratio, and comprises:
and/or the network side equipment reduces the power offset value of the uplink enhanced dedicated physical data channel (E-DPDCH) according to the target compensation level of the first cell DPCCH receiving signal-to-interference ratio.
5. The method of claim 4, wherein the network side device decreases the power offset value of the E-DPDCH according to the target compensation level of the received signal-to-interference ratio of the first cell DPCCH, and the method comprises:
and the network side equipment reduces a reference Power Offset (PO) value corresponding to a reference enhanced transport format combination identifier (E-TFCI) according to the target compensation level of the received signal-to-interference ratio of the first cell DPCCH, and/or reduces a hybrid automatic repeat request (HARQ) PO value of each medium access control (MAC-d) flow according to the target compensation level of the received signal-to-interference ratio of the first cell DPCCH.
6. The method according to any of the claims 3 to 5, wherein the network side device reducing the power offset value of the data channel according to the target backoff level of the first cell-specific physical control channel, DPCCH, received signal-to-interference ratio comprises:
the network side equipment determines a power offset difference value of a data channel according to a target compensation level of the first cell DPCCH receiving signal-to-interference ratio;
and reducing the power offset value of the data channel according to the power offset difference value of the data channel and the original power offset value of the data channel configured for the UE.
7. The method according to any one of claims 3 to 6, further comprising:
and the network side equipment reduces the power offset value of the HS-DPCCH according to the target compensation level of the receiving signal-to-interference ratio of the high-speed dedicated physical control channel HS-DPCCH of the first cell, and sends the reduced power offset value of the HS-DPCCH to the UE.
8. The method of claim 7, wherein the network side device decreases the power offset value of the HS-DPCCH according to a target compensation level of the first-cell high speed dedicated physical control channel (HS-DPCCH) received signal-to-interference ratio, comprising:
the network side equipment determines the power offset difference value of the HS-DPCCH according to the target compensation level of the HS-DPCCH receiving signal-to-interference ratio of the first cell;
and reducing the power offset value of the HS-DPCCH according to the power offset difference value of the HS-DPCCH and the original power offset value of the HS-DPCCH configured for the UE.
9. The method according to any one of claims 3 to 6, further comprising:
and the network side equipment reduces the power offset value of the E-DPCCH according to the target compensation level of the receiving signal-to-interference ratio of the first cell enhanced dedicated physical control channel E-DPCCH, and sends the reduced power offset value of the E-DPCCH to the UE.
10. The method of claim 9, wherein the network side device decreases the power offset value of the E-DPCCH according to a target backoff level of a received signal-to-interference ratio of the first cell enhanced dedicated physical control channel (E-DPCCH), comprising:
the network side equipment determines a power offset difference value of the E-DPCCH according to a target compensation level of the receiving signal-to-interference ratio of the first cell E-DPCCH;
and reducing the power offset value of the E-DPCCH according to the power offset difference value of the E-DPCCH and the original power offset value of the E-DPCCH configured for the UE.
11. A network-side device, the device comprising:
the device comprises a determining module, a judging module and a judging module, wherein the determining module is used for determining that the uplink signal quality of User Equipment (UE) with at least two uplinks in a first cell meets a preset condition;
the processing module is used for reducing the power offset value of the data channel;
and a sending module, configured to send the reduced power offset value of the data channel obtained by the processing module to the UE.
12. The apparatus of claim 11, wherein the determining module is specifically configured to determine that the uplink signal quality of the UE in the first cell is less than a first threshold; or determining that the difference between the uplink signal quality of the UE in the first cell and the uplink signal quality of the UE in other cells reaches a second threshold.
13. The device according to claim 11 or 12, wherein said processing module is configured to reduce the power offset value of the data channel in accordance with a target backoff level for the first cell specific physical control channel, DPCCH, received signal-to-interference ratio.
14. The apparatus according to claim 13, wherein the processing module specifically includes:
a first processing unit, configured to reduce a power offset value of a DPDCH according to a target compensation level of a received sir of the DPCCH in the first cell;
and/or the second processing unit is used for reducing the power offset value of the E-DPDCH according to the target compensation level of the DPCCH receiving signal-to-interference ratio of the first cell.
15. The apparatus of claim 14, wherein the second processing unit is specifically configured to reduce a reference Power Offset (PO) value corresponding to a reference enhanced transport format combination indicator (E-TFCI) according to the target backoff level of the first cell DPCCH received signal-to-interference ratio, and/or reduce a hybrid automatic repeat request (HARQ) PO value of each MAC-d flow according to the target backoff level of the first cell DPCCH received signal-to-interference ratio.
16. The apparatus according to any of the claims 13 to 15, wherein the processing module is specifically configured to determine a power offset difference for a data channel based on a target backoff level for the first cell DPCCH received signal-to-interference ratio; and reducing the power offset value of the data channel according to the power offset difference value of the data channel and the original power offset value of the data channel configured for the UE.
17. The apparatus of any of claims 13 to 16, wherein the processing module is further configured to reduce the power offset value of the HS-DPCCH according to a target compensation level for the first cell high speed dedicated physical control channel, HS-DPCCH, received signal-to-interference ratio;
the sending module is further configured to send the reduced power offset value of the HS-DPCCH obtained by the processing module to the UE.
18. The apparatus of claim 17, wherein the processing module is specifically configured to determine the power offset difference for the HS-DPCCH based on a target backoff level for the HS-DPCCH received signal-to-interference ratio for the first cell; and reducing the power offset value of the HS-DPCCH according to the power offset difference value of the HS-DPCCH and the original power offset value of the HS-DPCCH configured for the UE.
19. The apparatus of any of claims 13 to 15, wherein the processing module is further configured to reduce the power offset value of the E-DPCCH according to a target backoff level for a received signal-to-interference ratio of the first cell enhanced dedicated physical control channel, E-DPCCH;
the sending module is further configured to send the reduced power offset value of the E-DPCCH obtained by the processing module to the UE.
20. The apparatus of claim 19, wherein the processing module is specifically configured to determine a power offset difference for the E-DPCCH based on a target backoff level for a received signal-to-interference ratio for the E-DPCCH of the first cell; and reducing the power offset value of the E-DPCCH according to the power offset difference value of the E-DPCCH and the original power offset value of the E-DPCCH configured for the UE.
21. A communication system, characterized in that the system comprises the network-side device of any one of the claims 11 to 20.
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