WO2014198185A1 - 传输功率控制比特的发送方法、接收方法及装置 - Google Patents

传输功率控制比特的发送方法、接收方法及装置 Download PDF

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Publication number
WO2014198185A1
WO2014198185A1 PCT/CN2014/079043 CN2014079043W WO2014198185A1 WO 2014198185 A1 WO2014198185 A1 WO 2014198185A1 CN 2014079043 W CN2014079043 W CN 2014079043W WO 2014198185 A1 WO2014198185 A1 WO 2014198185A1
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WIPO (PCT)
Prior art keywords
power
cqi
user equipment
fixed
base station
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PCT/CN2014/079043
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English (en)
French (fr)
Inventor
焦淑蓉
花梦
杨毅
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华为技术有限公司
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Publication of WO2014198185A1 publication Critical patent/WO2014198185A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/54Signalisation aspects of the TPC commands, e.g. frame structure
    • H04W52/58Format of the TPC bits

Definitions

  • the present invention relates to a wireless communication technology, and in particular, to a transmission method, a receiving method, and a device for transmitting power control bits. Background technique
  • Power control is one of the means by which the Universal Mobile Telecommunications System (UMTS) combats the fading of wireless channel transmission and increases system capacity.
  • UMTS Universal Mobile Telecommunications System
  • the user equipment obtains the signal to interference ratio (SIR) of the downlink channel according to the downlink signal sent by the base station, and compares the SIR to the signal to interference ratio.
  • SIR signal to interference ratio
  • the size of the target value is generated, and a Transmission Power Control (TPC) command is generated, and the TPC command is sent to the base station, and the base station adjusts the transmit power of the TPC bit sent to the UE according to the TPC command received from the UE, and
  • the TPC bit is used to adjust the transmit power of the UE's upstream channel.
  • SIR signal to interference ratio
  • TPC Transmission Power Control
  • the UE in a plurality of scenarios of the prior art, for example, in a Heterogeneous Network (Hetnet) or in a MultiFlow (MF) scenario, the UE is in a connected state with multiple base stations, and the UE The TPC command generated by the multiple base stations does not enable the base stations to accurately adjust the transmit power of the TPC bits sent to the UE. This may affect the correct reception of the TPC bits by the UE, and thus the correct adjustment of the uplink channel transmit power by the UE cannot be guaranteed.
  • Hetnet Heterogeneous Network
  • MF MultiFlow
  • the embodiments of the present invention provide a transmission method, a receiving method, and a device for transmitting power control bits, to ensure a soft handover area of the MF, HetNet, and a light auxiliary carrier of the S-UMTS (Scalable UMTS).
  • the uplink and downlink power control can be carried out smoothly.
  • an embodiment of the present invention provides a method for transmitting a transmission power control bit, including: acquiring a fixed transmission power for transmitting a transmission power control TPC bit to a user equipment, where the fixed transmission power is to ensure that the user equipment is correct. Receiving a fixed power value of the TPC bit; Transmitting the TPC bit to the user equipment according to the fixed transmit power.
  • an embodiment of the present invention provides a method for receiving a transmission power control bit, including: receiving a TPC bit sent by a base station by using a fixed transmission power;
  • the transmit power of the uplink channel is adjusted according to the TPC bit.
  • an embodiment of the present invention provides a base station, including:
  • An acquiring module configured to acquire a fixed transmit power for transmitting a transmission power control TPC bit to the user equipment, where the fixed transmit power is a fixed power value for ensuring that the user equipment correctly receives the TPC bit;
  • a sending module configured to send the TPC bit to the user equipment according to the fixed transmit power.
  • an embodiment of the present invention provides a user equipment, including:
  • a receiving module configured to receive a TPC bit sent by the base station by using a fixed transmit power
  • an adjusting module configured to adjust a transmit power of the uplink channel according to the TPC bit.
  • an embodiment of the present invention provides a network system, including the foregoing base station and user equipment.
  • the method, the receiving method and the device for transmitting the transmission power control bit provided by the embodiment of the present invention can transmit the TPC bit to the UE by using the fixed transmission power, and can satisfy the soft handover area of the MF, HetNet, and the uplink and downlink of the light auxiliary carrier of the S-UMTS. Power control can go smoothly.
  • FIG. 1 is a flowchart of a method for transmitting transmission power control bits according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for receiving transmission power control bits according to another embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a network system according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a base station according to another embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a user equipment according to another embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a network system according to another embodiment of the present invention. detailed description
  • the UE is connected to multiple base stations, and the transmit power of the uplink channel of the UE is set according to multiple TPC bits sent by multiple base stations, so that it may not be able to satisfy all the base stations.
  • the TPC command sent by the UE is accurately received.
  • embodiments of the present invention provide a solution in which a base station transmits TPC bits with a fixed transmission power, and the UE adjusts the transmission power of the uplink channel accordingly.
  • FIG. 1 is a flowchart of a method for transmitting transmission power control bits according to an embodiment of the present invention. As shown in FIG. 1, the method includes:
  • Step 100 Acquire a fixed transmit power for transmitting a transmit power control TPC bit to a user equipment, where the fixed transmit power is a fixed power value that ensures that the user equipment correctly receives the TPC bit.
  • the base station does not dynamically adjust the transmission power of the TPC command to the UE according to the TPC command reported by the UE in the prior art, but first acquires a fixed transmission power before transmitting the TPC bit to the UE. And transmitting the TPC bit to the UE with the fixed transmit power, so that the UE adjusts the transmit power of the uplink channel.
  • the base station should be able to satisfy the UE's accurate reception of the TPC bit, and the manner of obtaining the fixed transmission power is described in detail in the following embodiments.
  • Step 101 Send the TPC bit to the user equipment according to the fixed transmit power.
  • the base station may send a TPC bit to the UE according to the fixed transmit power to ensure that the UE can adjust the transmit power of the uplink channel according to the TPC bit.
  • a method for transmitting a transmission power control bit provided by an embodiment of the present invention by using a fixed transmission The power is transmitted to the UE, and the uplink and downlink power control of the light auxiliary carrier of the Scalable Universal Mobile Telecommunications System (S-UMTS) can be smoothly performed. Progress.
  • S-UMTS Scalable Universal Mobile Telecommunications System
  • the manner in which the base station obtains the fixed transmit power may include the following:
  • the transmit power of the CPICH and the power offset may be sent by the radio network controller (Radio Network Controller; RNC) to the base station.
  • RNC Radio Network Controller
  • the base station may The two are multiplied to obtain a fixed transmit power for transmitting TPC bits to the UE.
  • the fixed transmission power for transmitting TPC bits to the UE can also be obtained by addition and subtraction calculation.
  • the method before acquiring the fixed transmit power for sending the TPC bit to the user equipment, the method further includes receiving, by the base station, a power control mode indication, where the power control mode indication may be sent by the RNC.
  • the base station obtains a fixed transmission power for transmitting a TPC bit to the user equipment according to the power control mode indication. That is, whether the base station transmits the TPC bit by using the fixed transmission power may be determined according to the power control mode indication sent by the RNC. If the transmission mode of the embodiment of the present invention is used (that is, the TPC bit is transmitted by using a fixed transmission power), the base station follows the foregoing. The process flow provided by the method embodiment sends a TPC bit. If the indication is to use other transmission modes, for example, according to the transmission mode of the prior art, the base station performs the transmission according to the prior art.
  • the fixed transmission power used is not always fixed, and may be adjusted according to actual conditions.
  • the CQI may be sent according to the channel quality indication CQI sent by the UE.
  • the adjusting of the power includes: receiving a channel quality indicator CQI sent by the UE, and adjusting a power offset of the CPICH according to the CQI.
  • the product of the power offset and the CPICH transmission power is adjusted by adjusting the power offset to adjust the transmission power.
  • the power control mode indication in this embodiment may include CQI application indication information, and the base station adjusts the power offset according to the CQI according to the CQI application indication information, that is, the base station may determine, according to the CQI application indication information, whether the UE is determined according to the UE.
  • the transmitted CQI performs an adjustment to the power offset.
  • the fixed transmission power described in the embodiments of the present invention should be understood to be fixed during a period of time, that is, the base station transmits the TPC bit to the UE by using the same transmission power during the period of time. .
  • the fixed transmit power used by the base station to transmit the TPC bits to the UE is not the beginning.
  • the base station may also adjust the fixed transmit power.
  • the base station transmits the TPC bit to the UE with the adjusted fixed transmit power for a period of time after the adjustment.
  • the second mode the base station receives the channel quality indicator CQI sent by the UE, and obtains a fixed transmission power for transmitting the TPC bit to the UE according to the CQI.
  • the base station may search for a fixed transmit power corresponding to the CQI value in a corresponding table stored locally according to the CQI sent by the UE.
  • the correspondence table includes a correspondence between different CQI values and fixed transmission powers.
  • each fixed transmission power corresponds to a CQI value, and the specific corresponding manner is not limited, as long as the CQI value sent by the UE is found to be corresponding.
  • the fixed transmit power is sufficient.
  • the base station can also calculate a fixed transmit power based on the CQI by a calculation formula.
  • the base station further includes receiving, by the base station, a power control mode indication including the CQI application indication information.
  • the power control mode indication may be sent by the RNC to the base station.
  • the base station may acquire, according to the CQI application indication information, a fixed transmission power for transmitting a TPC bit to the UE according to the CQI lookup correspondence table. That is to say, the base station can determine whether to obtain the fixed transmission power in the second manner according to the CQI application indication information sent by the RNC.
  • the base station receives the absolute transmit power value sent by the RNC, and uses the absolute transmit power value as the fixed transmit power for transmitting the TPC bit to the UE.
  • the fixed transmit power of the TPC bit transmitted by the base station is not determined by the base station itself, but is determined by the RNC.
  • the RNC indicates that the base station uses the absolute transmit power value as the fixed transmit power by transmitting an absolute transmit power value to the base station, and the base station After receiving the absolute transmit power value, the TPC bit can be sent to the UE according to the absolute transmit power value according to the indication.
  • the RNC can calculate the transmit power required by the base station to transmit the TPC bit by using the Received Signal Code Power (RSCP) measurement value reported by the UE, that is, the RNC can adjust the absolute transmit in real time.
  • the power value is sent to the base station.
  • RSCP Received Signal Code Power
  • the base station first sends a TPC bit to the UE by using a preset initial value of the transmission power as the fixed transmission power, and can adjust the fixed transmission power according to the reception quality of the TPC command sent by the UE. For example, if the base station finds that the quality of the uplink signal is too good (for example, if the SNR of the uplink pilot is greater than the target value by several dB for a certain time, it is considered to be too good), then it can be considered that the downlink reduced TPC bit is not received by the UE, and the base station can improve by Transmit power of TPC bits. In addition, the base station may always instruct the UE to reduce the transmission power of the TPC command, but has not been lowered. At this time, it may also be considered that the downlink downlink TPC bit is not received by the UE, thereby improving. Transmit power of TPC bits.
  • the base station may always instruct the UE to reduce the transmission power of the TPC command, but has not been lowered. At this time, it may
  • the base station can also decide whether to use the transmission mode provided by the embodiment of the present invention (that is, the transmission mode in which the TPC bit is transmitted by using the fixed transmission power), and is not indicated by other network devices such as the RNC.
  • the transmission mode provided by the embodiment of the present invention that is, the transmission mode in which the TPC bit is transmitted by using the fixed transmission power
  • the RNC Radio Network Controller
  • the transmit power used by the base station to transmit the TPC bit may not be adjusted according to the TPC command sent by the UE, but a fixed transmit power is used, so in some cases, the UE may not send the TPC command. Reduce the use of bandwidth.
  • the base station may send uplink dedicated physical control channel format information to the UE, where the uplink dedicated physical control channel format information does not include TPC command information. After receiving the uplink dedicated physical control channel format information, the UE may not send a TPC command to the base station according to the indication.
  • the uplink dedicated physical control channel format information may also be indicated by other network elements in the network, for example, may be sent by the RNC. The following is explained in two cases.
  • the TPC is carried on a Fractional Dedicated Physical Channel (F-DPCH) and has no R99 data.
  • the base station fixes the transmit power of the F-DPCH by using the foregoing method, and ensures that the edge UE can normally receive the TPC bit carried on the F-DPCH.
  • the UE does not need to carry the TPC command on the Dedicated Physical Control Channel (DPCCH), and only needs to transmit a pilot for the Signal to Interference Ratio (SIR).
  • SIR Signal to Interference Ratio
  • the estimation and channel estimation are sufficient, and the transmission power of the uplink DPCCH can be further reduced. In this case, the UE may not send a TPC command to the base station.
  • the RRC signaling about the MF configuration of the UE sent to the UE in the RNC includes the information about the power control mode of the downlink TPC and the format information of the uplink DPCCH of the UE.
  • This embodiment is applicable to all high speed downlink shared channel (High Speed Downlink Shared Channel; HS-DSCH) serving cell and assisted serving cell in the MF scenario, and the macro station in the HetNet soft handover area where the macro station is the serving cell, and S - Light secondary carrier of UMTS. It should be noted that in this case, the serving cell can also ensure that the terminal correctly receives the TPC bit according to the prior art.
  • High Speed Downlink Shared Channel HS-DSCH
  • the TPC is carried on the downlink DPCCH.
  • the DPCCH can also be carried in a pilot field and a transport format combination indicator (TFCI), where the TFCI is used to indicate the bearer on the DPDCH that is simultaneously transmitted with the DPCCH.
  • TFCI transport format combination indicator
  • the base station uses the above method to fix the transmit power of the TPC bit, and the processing for the pilot domain and the TFCI is the same as in the prior art.
  • the situation The TPC command still needs to be carried on the uplink DPCCH sent by the UE.
  • the RNC may or may not notify the UE of the downlink TPC transmission mode, and the notification may be the RRC signaling delivered by the RNC or the physical layer signaling delivered by the base station.
  • the RNC shall inform the base station of the transmission mode of the downlink TPC. This embodiment applies to all HS-DSCH serving cells and assisted serving cells in the MF scenario, and all cells in the active set in the HetNet soft handoff region.
  • the embodiments of the present invention are applicable to all non-serving cells in a soft handover scenario.
  • the method for transmitting the transmission power control bit provided by the embodiment of the present invention can transmit the TPC bit to the UE by using the fixed transmission power, and can satisfy the soft handover area of the MF, the HetNet, and the uplink and downlink power control of the light auxiliary carrier of the S-ring TS. Progress.
  • FIG. 2 is a flowchart of a method for receiving transmission power control bits according to another embodiment of the present invention. As shown in FIG. 2, the method includes:
  • Step 200 Receive a TPC bit sent by the base station by using a fixed transmit power.
  • Step 201 Adjust transmit power of the uplink channel according to the TPC bit.
  • the UE receives the TPC bit sent by the base station, and the TPC bit is sent by the base station by using a fixed transmission power.
  • the UE then adjusts the transmit power of the uplink channel according to the TPC bit.
  • the UE may further receive the uplink dedicated physical control channel format information sent by the network side, where the uplink dedicated physical control channel format information does not include the TPC command information; the UE sends the uplink dedicated physical control channel format information to the network side according to the uplink dedicated physical control channel format information.
  • the uplink dedicated physical control information does not include the TPC command in the uplink dedicated physical control information.
  • the network side includes a base station or a wireless network controller RNC.
  • the base station sends the TPC bit to the UE by using the fixed transmission power, and can satisfy the soft handover area of the MF, the HetNet, and the uplink and downlink power control of the S-UMTS light auxiliary carrier. Progress.
  • FIG. 3 is a schematic diagram of a base station composition according to an embodiment of the present invention.
  • the base station includes an obtaining module 31 and a sending module 32, where the acquiring module 31 is configured to obtain a transmission power control TPC bit for transmitting to a user equipment.
  • the fixed transmit power is a fixed power value for ensuring that the user equipment correctly receives the TPC bit; and the sending module 32 is configured to send the TPC bit to the UE according to the fixed transmit power.
  • the base station provided by the embodiment of the present invention is no longer reported according to the UE according to the prior art.
  • the TPC command dynamically adjusts the transmit power of the TPC command to the UE, but first acquires a fixed transmit power through the acquisition module 31 before transmitting the TPC bit to the UE, and sends the fixed transmit power to the UE through the transmit module 32.
  • the TPC bit is used by the UE to adjust the transmit power of the uplink channel.
  • an implementation manner of the obtaining module 31 may include: a first unit is configured to acquire a transmit power of a common pilot channel CPICH and a power offset of the CPICH; and a second unit is configured to send according to the CPICH The power is offset from the power to obtain the fixed transmit power.
  • the base station may further include a receiving module 33 for receiving a power control mode indication.
  • the obtaining module 31 is specifically configured to obtain, according to the power control mode indication, a fixed transmit power for sending the TPC bit to the UE.
  • the obtaining module 31 instructs, according to the power control mode received by the receiving module 33, whether to transmit the TPC bit transmission mode using a fixed transmission power.
  • the receiving module 33 is further configured to receive a channel quality indicator CQI sent by the UE.
  • the first unit in the obtaining module 31 is further configured to adjust the power offset according to the CQI to implement fixed transmit power. Adjustment.
  • the first unit is further configured to adjust the power offset according to the CQI according to the CQI application indication information, where the first unit applies the indication according to the CQI The information determines whether the power offset is adjusted.
  • another implementation manner of the acquiring module 31 of the base station may include: a third unit is configured to receive a channel quality indicator CQI sent by the user equipment; and a fourth unit is configured to obtain, according to the CQI lookup correspondence table, Transmitting the fixed transmit power of the TPC bits to the user equipment.
  • the base station searches for a fixed transmission power corresponding to the CQI value in the corresponding table stored locally by the acquiring module.
  • the base station may further include: a receiving module 33, configured to receive a power control mode indication that includes CQI application indication information; correspondingly, the fourth unit is further configured to obtain, according to the CQI application indication information, according to the CQI search correspondence table. A fixed transmit power for transmitting the TPC bit to the user equipment. The fourth unit determines whether to transmit the TPC bit transmission mode using the fixed transmission power according to the CQI application indication information.
  • the base station in this embodiment may further include a receiving module 33, configured to receive an absolute transmit power value sent by the RNC.
  • the obtaining module 31 is specifically configured to use the absolute transmit power value as a fixed identifier for transmitting the TPC bit to the UE. Transmit power.
  • the acquiring module 31 of the base station may be further configured to send the TPC bit to the user equipment by using a fixed transmission power.
  • the receiving module 33 is further configured to: receive a channel quality indicator CQI sent by the user equipment; correspondingly, the first unit is further configured to: adjust the power offset according to the CQI.
  • the power control mode indication includes the CQI application indication information.
  • the first unit is further configured to adjust the power offset according to the CQI according to the CQI application indication information.
  • the sending module 32 is further configured to send uplink dedicated physical control channel format information to the UE, where the uplink dedicated physical control channel format information does not include TPC command information.
  • the base station may send the uplink dedicated physical control channel format information to the UE through the sending module 32.
  • the transmitting module 32 may not send the uplink dedicated physical control channel format information to the UE because the TPC command still needs to be carried on the uplink DPCCH sent by the UE.
  • the base station provided by the embodiment of the present invention can transmit the TPC bit to the UE by using the fixed transmission power, and can satisfy the soft handover area of the MF, the HetNet, and the uplink and downlink power control of the S-UMTS light auxiliary carrier can smoothly enter.
  • FIG. 4 is a schematic diagram of the configuration of a user equipment according to an embodiment of the present invention.
  • the user equipment includes a receiving module 41 and an adjusting module 42.
  • the receiving module 41 is configured to receive a TPC bit sent by the base station by using a fixed transmission power.
  • the adjustment module 42 is configured to adjust the transmit power of the uplink channel according to the TPC bit.
  • the receiving module 41 is further configured to receive the uplink dedicated physical control channel format information that is sent by the network side, where the uplink dedicated physical control channel format information does not include the TPC command information.
  • the UE further includes: the sending module is configured to: And transmitting uplink dedicated physical control information to the network side according to the uplink dedicated physical control channel format information, where the uplink dedicated physical control information does not include a TPC command.
  • the network side includes a base station or an RNC.
  • FIG. 5 is a schematic structural diagram of a network system according to an embodiment of the present invention.
  • the network system includes a base station 51 and a user equipment 52.
  • the base station 51 and the user equipment 52 are wirelessly connected to each other.
  • the base station and the user equipment in this embodiment may use the base station provided by the foregoing device embodiments and
  • the function of the UE can be used in the processing flow of the foregoing method embodiments.
  • the implementation principle and technical effects are similar, and are not described here.
  • the network system provided by the embodiment of the present invention can transmit the TPC bit to the UE by using the fixed transmission power, and can satisfy the soft handover area of the MF, the HetNet, and the uplink and downlink functions of the S-UMTS light auxiliary carrier can smoothly advance.
  • FIG. 6 is a schematic structural diagram of a base station according to another embodiment of the present invention.
  • the base station includes a memory 61 and a processor 62.
  • the memory 61 stores a program
  • the processor 62 calls a program internal to the memory 61. Performing the following operations: acquiring a fixed transmit power for transmitting a transmission power control TPC bit to the user equipment, where the fixed transmit power can ensure that the user equipment correctly receives the TPC bit, and sends the TPC bit to the UE according to the fixed transmit power. Said TPC bit.
  • the base station provided by the embodiment of the present invention can transmit the TPC bit to the UE by using the fixed transmission power, and can satisfy the soft handover area of the MF, the HetNet, and the uplink and downlink power control of the S-UMTS light auxiliary carrier can smoothly enter.
  • FIG. 7 is a schematic diagram of a configuration of a user equipment according to another embodiment of the present invention.
  • the UE includes a receiver 71 and a processor 72, where the receiver 71 is configured to receive a TPC bit sent by the base station by using a fixed transmit power.
  • the processor 72 is configured to adjust the transmit power of the uplink channel according to the TPC bit.
  • FIG. 8 is a schematic structural diagram of a network system according to another embodiment of the present invention.
  • the network system includes a base station 81 and a user equipment 82.
  • the base station 81 and the user equipment 82 are wirelessly connected to each other.
  • the base station and the user equipment in this embodiment may use the base station provided in FIG. 6 and the UE provided in FIG. 7 , and the functions thereof may participate in the processing flow of the foregoing method embodiments, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • the network system provided by the embodiment of the present invention can transmit the TPC bit to the UE by using the fixed transmission power, and can satisfy the soft handover area of the MF, the HetNet, and the uplink and downlink functions of the S-UMTS light auxiliary carrier can smoothly advance.
  • the disclosed apparatus and method can be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the method of various embodiments of the present invention.
  • a computer device which may be a personal computer, a server, or a network device, etc.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and the like, which can store program codes. .

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Abstract

提供一种传输功率控制比特的发送方法、接收方法及装置。实施例通过采用固定发送功率向UE发送TPC比特,能够满足MF、HetNet的软切换区以及S-UMTS的轻辅载波的上下行功控可以顺利进行。

Description

传输功率控制比特的发送方法、 接收方法及装置
技术领域 本发明实施例涉及无线通信技术, 尤其涉及一种传输功率控制比特的发 送方法、 接收方法及装置。 背景技术
功率控制是通用移动通信系统 (Universal Mobile Telecommunications System, 以下简称 UMTS)对抗无线信道传输的衰落以及提高系统容量的手段 之一。
在现有技术中, 用户设备(User Equipment, 以下简称 UE)根据接收到 基站发送的下行信号,获取下行信道的信号干扰比(Signal to interference ratio, 以下简称 SIR) , 通过比较 SIR与信号干扰比目标值的大小, 生成传 输功率控制 (Transmission Power Control , 以下简称 TPC)命令, 并将 TPC 命令发送给基站, 基站根据从 UE处接收到的 TPC命令调整向 UE发送的 TPC 比特的发射功率, 而 TPC比特是用于调整 UE上行信道的发射功率的。
但在现有技术的多种场景下, 例如在异构网 (Heterogeneous Network, 以下简称 Hetnet) 中或者在多流 (MultiFlow, 以下简称 MF) 场景中, UE 与多个基站处于连接态, 而 UE基于多个基站所生成的 TPC命令并不能使得 各基站准确调整各自向 UE发送 TPC比特的发送功率, 从而会影响 UE对 TPC 比特的正确接收, 进而无法保证 UE对上行信道发射功率的正确调整。 发明内容
本发明实施例针对现有技术的缺陷,提供一种传输功率控制比特的发送 方法、 接收方法及装置, 以保证在 MF、 HetNet的软切换区以及 S-UMTS (Scalable UMTS) 的轻辅载波的上下行功控可以顺利进行。
第一方面,本发明实施例提供一种传输功率控制比特的发送方法,包括: 获取用于向用户设备发送传输功率控制 TPC比特的固定发送功率,所述 固定发送功率为保证所述用户设备正确接收所述 TPC比特的固定功率值; 根据所述固定发送功率向所述用户设备发送所述 TPC比特。
第二方面,本发明实施例提供一种传输功率控制比特的接收方法,包括: 接收基站采用固定发送功率发送的 TPC比特;
根据所述 TPC比特调整上行信道的发射功率。
第三方面, 本发明实施例提供一种基站, 包括:
获取模块,用于获取用于向用户设备发送传输功率控制 TPC比特的固定 发送功率,所述固定发送功率为保证所述用户设备正确接收所述 TPC比特的 固定功率值;
发送模块,用于根据所述固定发送功率向所述用户设备发送所述 TPC比 特。
第四方面, 本发明实施例提供一种用户设备, 包括:
接收模块, 用于接收基站采用固定发送功率发送的 TPC比特;
调整模块, 用于根据所述 TPC比特调整上行信道的发射功率。
第五方面, 本发明实施例提供一种网络系统, 包括上述的基站和用户设 备。
本发明实施例提供的传输功率控制比特的发送方法、 接收方法及装置, 通过采用固定发送功率向 UE发送 TPC比特, 能够满足 MF、 HetNet的软切换 区以及 S-UMTS的轻辅载波的上下行功控可以顺利进。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实 施例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见地, 下 面描述中的附图是本发明的一些实施例, 对于本领域普通技术人员来讲, 在 不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明一实施例提供的传输功率控制比特的发送方法流程图; 图 2为本发明另一实施例提供的传输功率控制比特的接收方法流程图; 图 3为本发明一实施例提供的基站组成示意图;
图 4为本发明一实施例提供的用户设备组成示意图;
图 5为本发明一实施例提供的网络系统组成示意图;
图 6为本发明另一实施例提供的基站组成示意图; 图 7为本发明另一实施例提供的用户设备组成示意图;
图 8为本发明另一实施例提供的网络系统组成示意图。 具体实施方式
在现有技术例如 Hetnet中或者 MF场景中, UE与多个基站连接, UE上 行信道的发射功率要根据多个基站下发的多个 TPC比特来设定, 因此有可能 不能满足所有基站都能准确地接收到 UE发送的 TPC命令。 针对现有技术的 上述缺陷, 本发明各实施例提供一种解决方案即基站以固定发送功率发送 TPC比特, UE据此来调整上行信道的发射功率。 为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本发明实施例中的附图, 对本发明实 施例中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例是本发明 一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通 技术人员在没有作出创造性劳动前提下所获得的所有其他实施例, 都属于本 发明保护的范围。
图 1为本发明一实施例提供的传输功率控制比特的发送方法流程图, 如 图 1所示, 该方法包括:
歩骤 100, 获取用于向用户设备发送传输功率控制 TPC比特的固定发送 功率,所述固定发送功率为保证所述用户设备正确接收所述 TPC比特的固定 功率值;
本发明实施例中基站不再按照现有技术中要根据 UE上报的 TPC命令来 动态地调整向 UE发送 TPC命令的发送功率,而是在向 UE发送 TPC比特之前, 首先获取一个固定发送功率, 并以该固定发送功率向 UE发送 TPC比特, 以 供 UE调整上行信道的发射功率。
本发明实施例中, 不但可以适应 Hetnet中或者 MF场景, 还可以使用其 他场景, 对此并不作限定。 当然, 基站所采用的固定发送功率应当能够满足 UE准确接收到 TPC比特为提前,对于固定发送功率的获取方式在后续实施例 中有详细介绍。
歩骤 101, 根据所述固定发送功率向所述用户设备发送所述 TPC比特。 基站获取到固定发送功率后,便可以根据该固定发送功率向 UE发送 TPC 比特, 以保证 UE能够根据述 TPC比特调整上行信道的发射功率。
本发明实施例提供的传输功率控制比特的发送方法,通过采用固定发送 功率向 UE发送 TPC比特, 能够满足 MF、 HetNet的软切换区以及可伸缩的通 用禾多动通信系统 (Scalable Universal Mobile Telecommunications System, 以下简称 S-UMTS) 的轻辅载波的上下行功控可以顺利进。
上述方法实施例中, 基站获取固定发送功率的方式可以包括如下几种: 第一种方式: 基站获取公共导频信道 (CPICH) 的发送功率以及 CPICH 的功率偏置 (power offset ) , 并根据所述 CPICH的发送功率与所述功率偏 置, 获取固定发送功率。 其中, 所述 CPICH的发送功率与所述功率偏置可以 是无线网络控制器(RadioNetworkController; 简称: RNC) 发送给基站的, 基站接收到 RNC发送的 CPICH的发送功率与功率偏置后, 可以将二者相乘获 得用于向 UE发送 TPC比特的固定发送功率。 也可以通过加减计算获得用于 向 UE发送 TPC比特的固定发送功率。
在第一种方式中,在获取用于向所述用户设备发送所述 TPC比特的固定 发送功率之前, 还包括基站接收功率控制方式指示, 该功率控制方式指示可 以是 RNC发送的。 基站根据该功率控制方式指示, 获取用于向用户设备发送 TPC比特的固定发送功率。 也就是说, 基站是否采用固定发送功率发送 TPC 比特可以根据 RNC发送的功率控制方式指示来决定, 若指示采用本发明实施 例的发送模式(即采用固定发送功率发送 TPC比特) , 则基站按照上述方法 实施例提供的处理流程发送 TPC比特。若指示采用其他的发送模式例如按照 现有技术的发送模式发送, 基站则按照现有技术的发送方式执行。
进一歩地, 在第一种方式中, 所采用的固定发送功率也并不是始终固定 不变的, 也可以根据实际情况进行调整, 本实施例中便可以根据 UE发送的 信道质量指示 CQI进行发送功率的调整, 具体包括: 接收 UE发送的信道质 量指示 CQI , 根据该 CQI对 CPICH的功率偏置进行调整。 本实施例通过调整 功率偏置来调整功率偏置与 CPICH发送功率的乘积, 以实现对发送功率的调 整。 再进一歩地, 本实施例功率控制方式指示可以包括 CQI应用指示信息, 基站根据 CQI应用指示信息, 根据 CQI对功率偏置进行调整, 也就是说基站 可以根据该 CQI应用指示信息决定是否根据 UE发送的 CQI进行对功率偏置 的调整。
此处应该注意的是, 本发明各实施例中所述的固定发送功率应该理解为 在一段时间内时固定不变的,即在此段时间内基站用同一个发送功率来向 UE 发送 TPC比特。 但是基站用于向 UE发送 TPC比特的固定发送功率并非是始 终不变的, 基站也可以对该固定发送功率进行调整, 在调整后的一段时间内 基站用调整后的固定发送功率来向 UE发送 TPC比特。
第二种方式:基站接收 UE发送的信道质量指示 CQI , 并根据该 CQI来获 取用于向 UE发送 TPC比特的固定发送功率。 该方式中, 基站可以根据 UE发 送的 CQI来在本地存储的一个对应表中查找该 CQI值所对应的一个固定发送 功率。 所述的对应表包括不同的 CQI值与各固定发送功率的对应关系, 当然 也可以是各固定发送功率对应一段 CQI值, 具体的对应方式不做限定, 只要 满足根据 UE发送的 CQI值找到对应的固定发送功率即可。 基站还可以通过 一个计算公式来根据 CQI计算出固定发送功率。
在第二种方式中, 根据 CQI获取向 UE发送 TPC比特的固定发送功率之 前, 还包括基站接收包含 CQI应用指示信息的功率控制方式指示。 该功率控 制方式指示可以是 RNC发送给基站的。 基站可以根据该 CQI应用指示信息, 根据 CQI查找对应表获取用于向 UE发送 TPC比特的固定发送功率。 也就是 说, 基站可以根据 RNC发送的 CQI应用指示信息来决定是否采用第二种方式 获取固定发送功率。
第三种方式: 基站接收 RNC发送的绝对发射功率值, 将该绝对发射功率 值作为用于向 UE发送 TPC比特的固定发送功率。 该方式中, 基站发送 TPC 比特的固定发送功率不由基站本身决定, 而是由 RNC决定, 具体是 RNC通过 向基站发送一个绝对发射功率值来指示基站以该绝对发射功率值作为固定 发送功率, 基站接收到该绝对发射功率值后便可以根据指示按照绝对发射功 率值向 UE发送 TPC比特。
在第三种方式中, RNC可以通过 UE上报的接收信号码功率 (Received Signal Code Power; 简称: RSCP) 测量值, 来计算出基站发送 TPC比特所 需的发送功率, 即 RNC可以实时调整绝对发射功率值, 并发送给基站。
第四种方式: 基站首先采用一个预先设置好的发送功率初始值作为固定 发送功率向 UE发送 TPC比特,并且可以根据 UE发送的 TPC命令的接收质量, 对固定发送功率进行调整。 例如, 基站发现上行信号质量过好 (例如上行 pilot的 SNR大于目标值若干 dB若干时间, 则认为过好), 那么可以认为是 下行的降 TPC比特没有被 UE收到, 此时基站可以通过提高 TPC比特的发送 功率。 另外, 也可以是基站一直指示 UE降低 TPC命令的发送功率, 但是一 直没降下去, 此时也可以认为是下行的降 TPC比特没有被 UE收到, 就提高 TPC比特的发送功率。
另外, 基站还可以自行决定是否采用本发明实施例提供的发送模式(即 采用固定发送功率发送 TPC比特的发送模式),而不由其他网络设备例如 RNC 来指示。 固定发送功率的获取和调整方式可以参见上述各实施例。
在上述各方法实施例中, 由于基站发送 TPC比特采用的发送功率可以不 根据 UE发送的 TPC命令来进行调整, 而是采用一个固定发送功率, 因此在 某种情况下 UE可以不发送 TPC命令以减少对带宽的占用。 具体地, 基站可 以向 UE发送上行专用物理控制信道格式信息, 该上行专用物理控制信道格 式信息中不包含 TPC命令信息。 UE接收到该上行专用物理控制信道格式信息 后, 便可以根据指示不发送 TPC命令给基站。 本方法实施例中, 上行专用物 理控制信道格式信息也可以是由网络中的其他网元对 UE进行指示, 例如可 以是由 RNC发送。 以下以两种情况进行说明。
第一种情况, TPC承载在部分专用物理信道 (Fractional Dedicated Physical Channel; 简称: F-DPCH) 上, 且没有 R99数据。 基站采用上述方 法固定 F-DPCH的发射功率, 并保证边缘 UE可以正常接收 F-DPCH上承载的 TPC比特。此种情况下,上行专用物理控制信道(Dedicated Physical Control Channel; 简称: DPCCH )上 UE无需承载 TPC命令, 只需要发送导频(pilot ) 用于信干比 (Signal to Interference Ratio; 简称: SIR) 估计和信道估 计即可, 可以进一歩降低上行 DPCCH的发射功率。该情况下, UE可以不向基 站发送 TPC命令了。 而且在在 RNC下发给 UE的关于 UE的 MF配置的 RRC信 令中, 包含了下行 TPC的功控方式相关信息, 以及 UE的上行 DPCCH的格式 信息。 本实施例适用 MF场景中的所有高速下行共享信道 (High Speed Downlink Shared Channel;简称: HS-DSCH)服务小区和协助服务小区, HetNet 软切换区域中宏站为服务小区时的宏站, 以及 S-UMTS的轻辅载波。 应该说 明的是, 此种情况下, 服务小区按照现有技术也可以保证终端正确接收 TPC 比特。
第二种情况, TPC承载在下行 DPCCH上。 此时 DPCCH上除了承载 TPC比 特外,还可以承载到导频(pilot)域,及传输格式组合指示(Transport Format Combination Indicator ; 简称: TFCI ) , 其中 TFCI用于指示与 DPCCH同 时发送的 DPDCH上承载的数据对应的格式。基站采用上述方法固定 TPC比特 的发射功率, 而对于 pilot域和 TFCI的处理还是与现有技术一样。 该情况 下, UE发送的上行 DPCCH上仍需要承载 TPC命令。 RNC可以通知也可以不通 知 UE下行 TPC的发送模式, 该通知可以是 RNC下发的 RRC信令也可以是基 站下发的物理层信令。 RNC要通知基站下行 TPC的发送模式。 本实施例适用 MF场景中的所有 HS-DSCH服务小区和协助服务小区, 以及 HetNet软切换区 域内激活集中的所有小区。
如果是非 MF场景, 那么本发明实施例适用于软切换场景中的所有非服 务小区。
本发明实施例提供的传输功率控制比特的发送方法,通过采用固定发送 功率向 UE发送 TPC比特, 能够满足 MF、 HetNet的软切换区以及 S-環 TS的 轻辅载波的上下行功控可以顺利进。
图 2为本发明另一实施例提供的传输功率控制比特的接收方法流程图, 如图 2所示, 该方法包括:
歩骤 200, 接收基站采用固定发送功率发送的 TPC比特;
歩骤 201, 根据所述 TPC比特调整上行信道的发射功率。
UE接收基站发送的 TPC比特,该 TPC比特是基站采用固定发送功率发送 的, 该固定发送功率的获取方法可以参见上述方法实施例, 此处不再赘述。 UE再根据 TPC比特调整上行信道的发射功率。
进一歩地, UE还可以接收网络侧发送的上行专用物理控制信道格式信 息,该上行专用物理控制信道格式信息中不包含 TPC命令信息; UE根据该上 行专用物理控制信道格式信息, 向网络侧发送上行专用物理控制信息, 所述 上行专用物理控制信息中不包含 TPC命令。所述的网络侧包括基站或无线网 络控制器 RNC。
本发明实施例提供的传输功率控制比特的接收方法, 基站通过采用固定 发送功率向 UE发送 TPC比特, 能够满足 MF、 HetNet的软切换区以及 S-UMTS 的轻辅载波的上下行功控可以顺利进。
图 3为本发明一实施例提供的基站组成示意图, 如图 3所示, 该基站包 括获取模块 31和发送模块 32,其中,获取模块 31用于获取用于向用户设备 发送传输功率控制 TPC比特的固定发送功率,所述固定发送功率为保证所述 用户设备正确接收所述 TPC比特的固定功率值; 发送模块 32用于根据所述 固定发送功率向 UE发送所述 TPC比特。
具体地, 本发明实施例提供的基站不再按照现有技术中要根据 UE上报 的 TPC命令来动态地调整向 UE发送 TPC命令的发送功率, 而是在向 UE发送 TPC比特之前,首先通过获取模块 31获取一个固定发送功率, 并通过发送模 块 32以该固定发送功率向 UE发送 TPC比特, 以供 UE调整上行信道的发射 功率。
在上述实施例中, 获取模块 31的一种实现方式可以包括第一单元用于 获取公共导频信道 CPICH的发送功率以及 CPICH的功率偏置; 以及, 第二单 元用于根据所述 CPICH的发送功率与所述功率偏置,获取所述固定发送功率。
在上述实施例中, 基站还可以包括接收模块 33用于接收功率控制方式 指示。 对应地, 获取模块 31具体用于根据该功率控制方式指示, 获取用于 向 UE发送所述 TPC比特的固定发送功率。 获取模块 31根据接收模块 33接 收到的功率控制方式指示决定是否采用固定发送功率发送 TPC比特的发送模 式。 进一歩地, 接收模块 33还用于接收 UE发送的信道质量指示 CQI; 对应 地, 获取模块 31中的第一单元还用于根据该 CQI对功率偏置进行调整, 以 实现对固定发送功率的调整。进一歩地,若所述功率控制方式指示还包括 CQI 应用指示信息, 则第一单元还用于根据该 CQI应用指示信息, 根据 CQI对所 述功率偏置进行调整,第一单元根据 CQI应用指示信息决定是否对功率偏置 进行调整。
在上述实施例中, 基站的获取模块 31另一种实现方式可以包括第三单 元用于接收所述用户设备发送的信道质量指示 CQI; 第四单元用于根据所述 CQI查找对应表获取用于向所述用户设备发送所述 TPC比特的固定发送功 率。基站通过获取模块在本地存储的对应表中查找与 CQI值对应的固定发送 功率。
进一歩地, 基站还可以包括接收模块 33用于接收包含 CQI应用指示信 息的功率控制方式指示; 对应地, 第四单元还用于根据所述 CQI应用指示信 息, 根据所述 CQI查找对应表获取用于向所述用户设备发送所述 TPC比特的 固定发送功率。第四单元根据 CQI应用指示信息决定是否采用固定发送功率 发送 TPC比特的发送模式。
基站获取固定发送功率的方式还可以由 RNC直接指定。 具体地, 本实施 例中基站还可以包括接收模块 33用于接收 RNC发送的绝对发射功率值; 对 应地, 获取模块 31具体用于将该绝对发射功率值作为用于向 UE发送 TPC比 特的固定发送功率。 基站的获取模块 31还可以用于, 自行决定采用固定发送功率向所述用 户设备发送所述 TPC比特。
进一歩地, 接收模块 33还用于, 接收所述用户设备发送的信道质量指 示 CQI ; 对应地, 第一单元还用于, 根据所述 CQI对所述功率偏置进行调整。 拖所述功率控制方式指示包括 CQI应用指示信息;对应地,第一单元还用于, 根据所述 CQI应用指示信息, 根据所述 CQI对所述功率偏置进行调整。
上述各基站实施例中, 发送模块 32还用于向 UE发送上行专用物理控制 信道格式信息, 该上行专用物理控制信道格式信息中不包含 TPC命令信息。 具体地,对于 TPC承载在 F-DPCH上的情况,基站可以通过发送模块 32向 UE 发送上行专用物理控制信道格式信息。对于 TPC承载在下行 DPCCH上的情况, 由于 UE发送的上行 DPCCH上仍需要承载 TPC命令, 因此发送模块 32可以不 发送上行专用物理控制信道格式信息给 UE。
本发明各实施例提供的基站的作用和功能, 可以参见上述各方法实施例 的处理流程, 其实现原理和技术效果类似, 此处不再赘述。
本发明实施例提供的基站,通过采用固定发送功率向 UE发送 TPC比特, 能够满足 MF、 HetNet的软切换区以及 S-UMTS的轻辅载波的上下行功控可以 顺利进。
图 4为本发明一实施例提供的用户设备组成示意图, 如图 4所示, 该用 户设备包括接收模块 41和调整模块 42,其中,接收模块 41用于接收基站采 用固定发送功率发送的 TPC比特; 调整模块 42用于根据所述 TPC比特调整 上行信道的发射功率。
进一歩地, 接收模块 41还用于接收网络侧发送的上行专用物理控制信 道格式信息, 所述上行专用物理控制信道格式信息中不包含 TPC命令信息; 对应地,UE还包括:发送模块用于根据所述上行专用物理控制信道格式信息, 向所述网络侧发送上行专用物理控制信息,所述上行专用物理控制信息中不 包含 TPC命令。 所述的网络侧包括基站或 RNC。
本发明各实施例提供的用户设备的作用和功能, 可以参见上述各方法实 施例的处理流程, 其实现原理和技术效果类似, 此处不再赘述。
图 5为本发明一实施例提供的网络系统组成示意图, 如图 5所示, 该网 络系统包括基站 51和用户设备 52, 基站 51和用户设备 52相互无线通信连 接。本实施例中的基站和用户设备可以采用上述各装置实施例提供的基站和 UE, 其功能可以参加上述各方法实施例的处理流程, 其实现原理和技术效果 类似, 此处不再赘述。
本发明实施例提供的网络系统, 通过采用固定发送功率向 UE发送 TPC 比特, 能够满足 MF、 HetNet的软切换区以及 S-UMTS的轻辅载波的上下行功 控可以顺利进。
图 6为本发明另一实施例提供的基站组成示意图, 如图 6所示, 该基站 包括存储器 61和处理器 62, 其中, 存储器 61存储有一段程序, 处理器 62 通过调用存储器 61内部的程序执行以下操作: 获取用于向用户设备发送传 输功率控制 TPC比特的固定发送功率, 所述固定发送功率能够保证所述用户 设备正确接收所述 TPC比特, 并根据所述固定发送功率向 UE发送所述 TPC 比特。
本实施例提供的基站的作用和功能, 可以参见上述各方法实施例的处理 流程, 其实现原理和技术效果类似, 此处不再赘述。
本发明实施例提供的基站,通过采用固定发送功率向 UE发送 TPC比特, 能够满足 MF、 HetNet的软切换区以及 S-UMTS的轻辅载波的上下行功控可以 顺利进。
图 7为本发明另一实施例提供的用户设备组成示意图, 如图 7所示, 该 UE包括接收器 71和处理器 72, 其中, 接收器 71用于接收基站采用固定发 送功率发送的 TPC比特; 处理器 72用于根据所述 TPC比特调整上行信道的 发射功率。
本实施例提供的 UE的作用和功能, 可以参见上述各方法实施例的处理 流程, 其实现原理和技术效果类似, 此处不再赘述。
图 8为本发明另一实施例提供的网络系统组成示意图, 如图 8所示, 该 网络系统包括基站 81和用户设备 82, 基站 81和用户设备 82相互无线通信 连接。本实施例中的基站和用户设备可以采用图 6提供的基站以及图 7提供 的 UE,其功能可以参加上述各方法实施例的处理流程,其实现原理和技术效 果类似, 此处不再赘述。
本发明实施例提供的网络系统, 通过采用固定发送功率向 UE发送 TPC 比特, 能够满足 MF、 HetNet的软切换区以及 S-UMTS的轻辅载波的上下行功 控可以顺利进。
在本发明所提供的几个实施例中, 应该理解到, 所揭露的装置和方法, 可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的, 例如, 所述单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可以有另外 的划分方式, 例如多个单元或组件可以结合或者可以集成到另一个系统, 或 一些特征可以忽略, 或不执行。 另一点, 所显示或讨论的相互之间的耦合或 直接耦合或通信连接可以是通过一些接口, 装置或单元的间接耦合或通信连 接, 可以是电性, 机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的, 作 为单元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地方, 或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或 者全部单元来实现本实施例方案的目的。
另外, 在本发明各个实施例中的各功能单元可以集成在一个处理单元 中, 也可以是各个单元单独物理存在, 也可以两个或两个以上单元集成在一 个单元中。 上述集成的单元既可以采用硬件的形式实现, 也可以采用硬件加 软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元, 可以存储在一个计算机 可读取存储介质中。 上述软件功能单元存储在一个存储介质中, 包括若干指 令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等) 或处理器 (processor ) 执行本发明各个实施例所述方法的部分歩骤。 而前 述的存储介质包括: U盘、移动硬盘、只读存储器(Read-Only Memory, ROM), 随机存取存储器 (Random Access Memory, RAM), 磁碟或者光盘等各种可以 存储程序代码的介质。
本领域技术人员可以清楚地了解到, 为描述的方便和简洁, 仅以上述各 功能模块的划分进行举例说明, 实际应用中, 可以根据需要而将上述功能分 配由不同的功能模块完成, 即将装置的内部结构划分成不同的功能模块, 以 完成以上描述的全部或者部分功能。 上述描述的装置的具体工作过程, 可以 参考前述方法实施例中的对应过程, 在此不再赘述。
最后应说明的是: 以上各实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述各实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案进行修 改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换, 并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims

权利要求
1、 一种传输功率控制比特的发送方法, 其特征在于, 包括:
获取用于向用户设备发送传输功率控制 TPC比特的固定发送功率,所述 固定发送功率为保证所述用户设备正确接收所述 TPC比特的固定功率值; 根据所述固定发送功率向所述用户设备发送所述 TPC比特。
2、 根据权利要求 1所述的方法, 其特征在于, 所述获取用于向用户设 备发送传输功率控制 TPC比特的固定发送功率, 包括:
获取公共导频信道 CPICH的发送功率以及所述 CPICH的功率偏置; 根据所述 CPICH的发送功率与所述功率偏置, 获取所述固定发送功率。
3、 根据权利要求 2所述的方法, 其特征在于, 在获取用于向所述用户 设备发送所述 TPC比特的固定发送功率之前, 还包括:
接收功率控制方式指示;
所述获取用于向所述用户设备发送所述 TPC比特的固定发送功率,包括: 根据所述功率控制方式指示, 执行所述获取所述固定发送功率的歩骤。
4、 根据权利要求 3所述的方法, 其特征在于, 根据所述 CPICH的发送 功率与所述功率偏置, 获取所述固定发送功率之后, 还包括:
接收所述用户设备发送的信道质量指示 CQI ;
根据所述 CQI对所述功率偏置进行调整。
5、 根据权利要求 4所述的方法, 其特征在于, 所述功率控制方式指示 包括 CQI应用指示信息; 相应地, 所述根据所述 CQI对所述功率偏置进行调 整包括:
根据所述 CQI应用指示信息, 根据所述 CQI对所述功率偏置进行调整。
6、 根据权利要求 1所述的方法, 其特征在于, 所述获取用于向用户设 备发送传输功率控制 TPC比特的固定发送功率, 包括:
接收所述用户设备发送的信道质量指示 CQI ;
根据所述 CQI获取所述固定发送功率。
7、 根据权利要求 6所述的方法, 其特征在于, 根据所述 CQI获取向所 述用户设备发送所述 TPC比特的固定发送功率之前, 还包括:
接收包含 CQI应用指示信息的功率控制方式指示;
所述根据所述 CQI获取所述固定发送功率, 包括:
根据所述 CQI应用指示信息,执行所述根据所述 CQI获取所述固定发送 功率的歩骤。
8、 根据权利要求 1所述的方法, 其特征在于, 所述获取用于向用户设 备发送传输功率控制 TPC比特的固定发送功率, 包括:
接收无线网络控制器 RNC发送的绝对发射功率值,将所述绝对发射功率 值作为所述固定发送功率。
9、 根据权利要求 1所述的方法, 其特征在于, 所述方法还包括: 根据所述用户设备发送的 TPC命令的接收质量,对所述固定发送功率进 行调整。
10、 根据权利要求 2所述的方法, 其特征在于, 在获取用于向所述用户 设备发送所述 TPC比特的固定发送功率之前, 还包括:
自行决定采用固定发送功率向所述用户设备发送所述 TPC比特。
11、 根据权利要求 10所述的方法, 其特征在于, 根据所述 CPICH的发 送功率与所述功率偏置, 获取所述固定发送功率之后, 还包括:
接收所述用户设备发送的信道质量指示 CQI;
根据所述 CQI对所述功率偏置进行调整。
12、 根据权利要求 11所述的方法, 其特征在于, 所述功率控制方式指 示包括 CQI应用指示信息; 相应地, 所述根据所述 CQI对所述功率偏置进行 调整包括:
根据所述 CQI应用指示信息, 根据所述 CQI对所述功率偏置进行调整。
13、 根据权利要求 6至 9任一所述的方法, 其特征在于, 在获取用于向 所述用户设备发送所述 TPC比特的固定发送功率之前, 还包括:
自行决定采用固定发送功率向所述用户设备发送所述 TPC比特。
14、 根据权利要求 1-13任一项所述的方法, 其特征在于, 还包括: 向所述用户设备发送上行专用物理控制信道格式信息,所述上行专用物 理控制信道格式信息中不包含 TPC命令信息。
15、 一种传输功率控制比特的接收方法, 其特征在于, 包括: 接收基站采用固定发送功率发送的 TPC比特;
根据所述 TPC比特调整上行信道的发射功率。
16、 根据权利要求 15所述的方法, 其特征在于, 还包括:
接收网络侧发送的上行专用物理控制信道格式信息,所述上行专用物理 控制信道格式信息中不包含 TPC命令信息; 根据所述上行专用物理控制信道格式信息, 向所述网络侧发送上行专用 物理控制信息, 所述上行专用物理控制信息中不包含 TPC命令。
17、 一种基站, 其特征在于, 包括:
获取模块,用于获取用于向用户设备发送传输功率控制 TPC比特的固定 发送功率,所述固定发送功率为保证所述用户设备正确接收所述 TPC比特的 固定功率值;
发送模块,用于根据所述固定发送功率向所述用户设备发送所述 TPC比 特。
18、 根据权利要求 17所述的基站, 其特征在于, 所述获取模块包括: 第一单元,用于获取公共导频信道 CPICH的发送功率以及 CPICH的功率 偏置;
第二单元, 用于根据所述 CPICH的发送功率与所述功率偏置, 获取所述 固定发送功率。
19、 根据权利要求 18所述的基站, 其特征在于, 还包括:
接收模块, 用于接收功率控制方式指示;
所述获取模块具体用于, 根据所述功率控制方式指示, 执行所述获取所 述固定发送功率的歩骤。
20、 根据权利要求 19所述的基站, 其特征在于, 所述接收模块还用于, 接收所述用户设备发送的信道质量指示 CQI ;
所述第一单元还用于, 根据所述 CQI对所述功率偏置进行调整。
21、 根据权利要求 20所述的基站, 其特征在于, 所述功率控制方式指 示包括 CQI应用指示信息;
所述第一单元还用于, 根据所述 CQI应用指示信息, 根据所述 CQI对所 述功率偏置进行调整。
22、 根据权利要求 17所述的基站, 其特征在于, 所述获取模块包括: 第三单元, 用于接收所述用户设备发送的信道质量指示 CQI ;
第四单元, 用于根据所述 CQI获取所述固定发送功率。
23、 根据权利要求 22所述的基站, 其特征在于, 还包括:
接收模块, 用于接收包含 CQI应用指示信息的功率控制方式指示; 所述第四单元, 还用于根据所述 CQI应用指示信息, 执行所述根据所述
CQI获取所述固定发送功率的歩骤。
24、 根据权利要求 17所述的基站, 其特征在于, 还包括: 接收模块, 用于接收无线网络控制器 RNC发送的绝对发射功率值; 对应 地,
所述获取模块具体用于, 将所述绝对发射功率值作为所述固定发送功 率。
25、 根据权利要求 17所述的基站, 其特征在于, 所述获取模块还用于: 根据所述用户设备发送的 TPC命令的接收质量,对所述固定发送功率进 行调整。
26、 根据权利要求 18所述的基站, 其特征在于, 所述获取模块还用于: 自行决定采用固定发送功率向所述用户设备发送所述 TPC比特。
27、 根据权利要求 26所述的基站, 其特征在于, 还包括:
接收模块, 用于接收所述用户设备发送的信道质量指示 CQI ;
所述第一单元还用于, 根据所述 CQI对所述功率偏置进行调整。
28、 根据权利要求 27所述的基站, 其特征在于, 所述功率控制方式指 示包括 CQI应用指示信息; 对应地,
所述第一单元还用于, 根据所述 CQI应用指示信息, 根据所述 CQI对所 述功率偏置进行调整。
29、 根据权利要求 21至 25任一所述的基站, 其特征在于, 所述获取模 块还用于: 自行决定采用固定发送功率向所述用户设备发送所述 TPC比特。
30、 根据权利要求 17至 29任一所述的基站, 其特征在于, 所述发送模 块还用于:
向所述用户设备发送上行专用物理控制信道格式信息,所述上行专用物 理控制信道格式信息中不包含 TPC命令信息。
31、 一种用户设备, 其特征在于, 包括:
接收模块, 用于接收基站采用固定发送功率发送的 TPC比特;
调整模块, 用于根据所述 TPC比特调整上行信道的发射功率。
32、 根据权利要求 31所述的用户设备, 其特征在于, 所述接收模块还 用于, 接收网络侧发送的上行专用物理控制信道格式信息, 所述上行专用物 理控制信道格式信息中不包含 TPC命令信息;对应地,所述用户设备还包括: 发送模块, 用于根据所述上行专用物理控制信道格式信息, 向所述网络 侧发送上行专用物理控制信息,所述上行专用物理控制信息中不包含 TPC命
33、 一种网络系统, 其特征在于, 包括如权利要求 17至 30任一所述的 基站, 以及如权利要求 31或 32所述的用户设备。
PCT/CN2014/079043 2013-06-14 2014-06-03 传输功率控制比特的发送方法、接收方法及装置 WO2014198185A1 (zh)

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