WO2015042881A1 - 一种控制发射功率的方法及装置 - Google Patents

一种控制发射功率的方法及装置 Download PDF

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Publication number
WO2015042881A1
WO2015042881A1 PCT/CN2013/084488 CN2013084488W WO2015042881A1 WO 2015042881 A1 WO2015042881 A1 WO 2015042881A1 CN 2013084488 W CN2013084488 W CN 2013084488W WO 2015042881 A1 WO2015042881 A1 WO 2015042881A1
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WIPO (PCT)
Prior art keywords
subframe
uplink
tpc command
index number
command value
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PCT/CN2013/084488
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English (en)
French (fr)
Inventor
吕永霞
张兴炜
李博
李超君
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201380002379.3A priority Critical patent/CN104969628B/zh
Priority to PCT/CN2013/084488 priority patent/WO2015042881A1/zh
Publication of WO2015042881A1 publication Critical patent/WO2015042881A1/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
    • H04W52/06TPC algorithms
    • H04W52/14Separate analysis of uplink or downlink
    • H04W52/146Uplink power control

Definitions

  • the method of the present invention relates to communication technologies, particularly to a transmission power control apparatus and t
  • the uplink (Uplink, UL) and the downlink (DL) can use different time slots of the same frequency (Time). Slot, ST).
  • the time domain is composed of a radio frame (RF), and the radio frame is identified by a system frame number (SFN), and each radio frame consists of 10 sub-lengths of 1 millisecond (ms). Frame (Subframe) composition.
  • Uplink-Downlink Configuration To meet the requirements of uplink and downlink asymmetric services, you can configure Uplink-Downlink Configuration according to the type of uplink and downlink asymmetric services.
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe.
  • the special subframe can be used as a valid downlink subframe, and the special subframe can include a Downlink Pilot Tme Slot (DWPTS), a Guard Period (GP), and an Uplink Pilot.
  • DWPTS Downlink Pilot Tme Slot
  • GP Guard Period
  • Uplink Pilot Uplink Pilot Time Slot
  • the transmit power of the uplink signal needs to be adjusted according to a Transmit Power Control (TPC) command sent by the eNB, so that the transmit power of the uplink signal can meet the received power of the eNB.
  • TPC Transmit Power Control
  • the eNB sends the TPC command to the UE by using downlink control information (Downlink Control Information, DCI) in a downlink subframe, and the DCI has a strict timing relationship with the uplink signal.
  • DCI Downlink Control Information
  • the feedback information is generally used as a dynamic offset (offset) based on the open loop power control to achieve closed loop power control.
  • the uplink signal using the closed loop power control includes a signal on a Physical Uplink Control Channel (PUCCH), a signal on a Physical Uplink Shared Channel (PUSCH), or a Sounding Reference Signal (SRS). .
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • SRS Sounding Reference Signal
  • the TPC command in the DCI may be used to adjust the transmit power of the uplink signals in at least two uplink subframes. For example, when the uplink and downlink ratio is 0, the number of uplink subframes is 6, and the number of downlink subframes is 4 (including special subframes). Therefore, when the uplink-downlink ratio is 0, the number of uplink subframes is greater than the number of downlink subframes. In this case, the TPC command in the DCI can be used to adjust the transmit power of the uplink signals in at least two uplink subframes. Assume that the uplink signal that needs to be adjusted for power is located at number i.
  • the TPC command for power adjustment of the uplink signal in the uplink subframe numbered i (hereinafter referred to as the uplink subframe i) is used by the eNB.
  • the downlink subframe numbered i-K PUSCT In the downlink subframe numbered i-K PUSCT
  • the downlink subframe i - K PUSCH (The following is called the downlink subframe i - K PUSCH ) is sent to the UE, and the value of K PUSCH is shown in Table 2.
  • Table 2 when the uplink-downlink ratio is 0, the K PUSCH corresponding to the uplink subframe 7 is 6, and the K puseH corresponding to the uplink subframe 8 is 7. Therefore, the uplink subframe 7 and the uplink subframe are adjusted.
  • the TPC command of the transmit power of the uplink signal in the frame 8 is sent to the UE in the downlink subframe 1 (although the subframe 1 is a special subframe, but the special subframe can also be used as a valid downlink subframe). That is, the TPC command sent by the eNB in the downlink subframe 1 is used to adjust the transmit power of the uplink signal in the uplink subframe 7 and the uplink subframe 8.
  • Table 2 Table 2:
  • the uplink and downlink ratios between the cells may be different, there may be interference of the base station to the base station in some subframes.
  • the uplink-downlink ratio of the cell A is 0, and the uplink-downlink ratio of the cell B adjacent to the cell A is 1, then in the subframe 4, the terminal in the cell A sends an uplink signal to the eNB A in the cell A, the cell The eNB B in B sends a downlink signal to the terminal in the cell B.
  • the downlink signal sent by the eNB B will generate strong interference to the uplink signal received by the eNB A.
  • the interference uplink subframe is divided into one subframe set, and the uplink subframe of the opposite interference is divided into another subframe set, and the uplink signals in different subframe sets are adjusted by using different TPC command values.
  • the interference includes interference of the uplink signal to the uplink signal or interference of the downlink signal to the downlink signal, and the interference of the uplink signal includes the interference of the uplink signal to the downlink signal or the downlink signal.
  • Uplink interference signal Incidentally, if an uplink signal in the uplink sub-frame i, i and the uplink subframe is divided into a set of sub-frames A, then the uplink signal is also located within the A subframe set.
  • the inventor believes that the prior art has at least the following problems:
  • the TPC command in the downlink subframe 1 is used to adjust the uplink subframe 7 and the uplink subframe 8
  • the transmit power of the uplink signal is used to adjust the uplink subframe 7 and the uplink subframe 8
  • the uplink subframe 7 and the uplink subframe 84 are located in different subframe sets.
  • the UE can only adjust the transmit power of the uplink signal in the uplink subframe 7 or the uplink subframe 8 according to the TPC command in the downlink subframe 1, and cannot adjust.
  • the transmit power of the uplink signal in another uplink subframe At this time, the transmit power of the uplink signal in the other uplink subframe cannot meet the requirement of the receiving power of the eNB, thereby The uplink signal transmission in the other uplink subframe fails.
  • an object of the embodiments of the present invention is to provide a method and apparatus for controlling transmit power, so that a TPC command in one downlink subframe is used to adjust uplink signal transmission in at least two uplink subframes. Power, and when the at least two uplink subframes are located in at least two subframe sets,
  • the UE can successfully send an uplink message in each of the at least two uplink subframes to the eNB.
  • an embodiment of the present invention provides a method for controlling transmit power, including:
  • the UE receives the DCI sent by the eNB in a downlink subframe, where the DCI includes an index number of the TPC command, where the one downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two subframe sets;
  • the UE transmits the uplink signal to the eNB in each uplink subframe according to the transmit power of the uplink signal in each uplink subframe.
  • the UE determines, according to an index number of the TPC command, a TPC command value of each uplink subframe in the at least two uplink subframes, including:
  • the UE uses the TPC command value of the subframe set to which each uplink subframe belongs as the TPC command value of each uplink subframe.
  • the UE determines, according to an index number of the TPC command, each of the at least two uplink subframes
  • the TPC command value of the subframe set to which the row subframe belongs includes:
  • the UE determines, according to an index number of the TPC command, each uplink sub-frame of the at least two uplink subframes
  • the TPC command value of the subframe set to which the frame belongs including:
  • the UE determines, according to the index number of the TPC command, a TPC command value corresponding to the index number of each of the at least two subframe sets.
  • the receiving, by the UE, the DCI sent by the eNB in the one downlink sub-frame includes:
  • the UE Receiving, by the UE, the at least two DCIs sent by the eNB in the one downlink subframe, where the index numbers of the TPC commands included in each DCI of the at least two DCIs are different from each other, and the DCI in the at least two DCIs is included
  • the index number of the TPC command has a corresponding relationship with the TPC command of the subframe set in the at least two subframe sets;
  • the TPC command value of the subframe set to which each of the at least two uplink subframes belongs according to the index number of the TPC command including:
  • the UE determines, according to the index number of the TPC command, a TPC command value of each uplink subframe in the at least two uplink subframes, including:
  • the receiving, by the UE, the DCI sent by the eNB in the one downlink sub-frame includes:
  • the UE receives the at least two DCIs sent by the eNB in the one downlink subframe, where the DCI in the at least two DCIs further includes an uplink index number, and the uplink index number included in each DCI of the at least two DCIs Different from each other, the uplink index number included in the DCI of the at least two DCIs has a one-to-one correspondence with the uplink subframes in the at least two uplink subframes;
  • the UE determines the TPC command value of each of the at least two uplink subframes according to the index number of the TPC command, including:
  • the UE Determining, by the UE, the uplink index included in the at least two uplink subframes and the DCI according to the uplink index number included in the DCI, according to the index of the TPC command included in the DCI in the at least two DCIs.
  • the corresponding uplink subframe, and the TPC command value corresponding to the index number of the TPC command included in the DCI is used as the TPC command value of the uplink subframe corresponding to the uplink index number included in the DCI.
  • a UE of the embodiment of the present invention includes:
  • a receiver configured to receive, in a downlink subframe, a DCI sent by an eNB, where the DCI includes an index number of a TPC command, where the one downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two subframes In the frame set;
  • a processor configured to determine, according to an index number of the TPC command received by the receiver, a TPC command value of each uplink subframe in the at least two uplink subframes, and according to the TPC command value of each uplink subframe, Determining a transmit power of the uplink signal in each uplink subframe;
  • a transmitter configured to transmit, according to the transmit power of the uplink signal in each uplink subframe determined by the processor, the uplink signal to the eNB in each uplink subframe.
  • the processor is specifically configured to use the receiver
  • the TPC command value of the received TPC command determines the TPC command value of the subframe set to which each of the at least two uplink subframes belongs, and uses the TPC command value of the subframe set to which each uplink subframe belongs The TPC command value of each uplink subframe.
  • the processor is configured to determine, according to an index number of the TPC command received by the receiver, the at least two a TPC command value of a subframe set in the subframe set, where the TPC command value of the one subframe set corresponds to the index number, and the TPC command value of the other subframe set in the at least two subframe sets is set as a pre- Set the value.
  • the processor is configured to determine, according to an index number of the TPC command received by the receiver, the at least two The TPC command value corresponding to the index number of each subframe set in the subframe set.
  • the receiver is configured to receive, in the one downlink sub-frame, at least two DCIs sent by the eNB, The index numbers of the TPC commands included in each DCI of the at least two DCIs are different from each other;
  • the UE further includes a memory for storing a one-to-one correspondence between an index number of a TPC command included in the DCI of the at least two DCIs and a TPC command of the subframe set in the at least two subframe sets, where At least two DCIs are received by the receiver;
  • the processor is specifically configured to determine a TPC command value of each subframe set in the at least two subframe sets according to the corresponding relationship stored in the memory and an index number of a TPC command included in each DCI of the at least two DCIs. .
  • the processor is configured to determine, according to an index number of the TPC command received by the receiver, a TPC command value corresponding to the index number, according to the downlink subframe. a number, determining an uplink subframe corresponding to the number of the downlink subframe in the at least two uplink subframes, and using the TPC command value corresponding to the index number as the TPC of the uplink subframe
  • the command value is set to a preset value of the TPC command values of other uplink subframes in the at least two uplink subframes.
  • the receiver is configured to receive, in the one downlink sub-frame, at least two DCIs sent by the eNB, where the DCI in the at least two DCIs further includes an uplink.
  • An index number where the uplink index numbers included in each of the at least two DCIs are different from each other
  • the UE further includes a memory, where the memory is configured to store an uplink index number included in the DCI of the at least two DCIs and the at least two Corresponding relationship between uplink subframes in uplink subframes, wherein the at least two DCIs are received by the receiver;
  • the processor is specifically configured to perform an index according to a TPC command included in the DCI of the at least two DCIs
  • the uplink index number included in the DCI and the corresponding relationship stored in the memory determining an uplink subframe corresponding to the uplink index number included in the DCI in the at least two uplink subframes, and the DCI
  • the TPC command value of the corresponding uplink subframe A method and a device for controlling transmission power are provided by an eNB according to an embodiment of the present invention.
  • the eNB sends a DCI to a UE in a downlink subframe, where the downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two subframes.
  • the UE determines, according to the index number of the TPC command included in the DCI, a TPC command value of each uplink subframe in the at least two uplink subframes, according to the TPC command value of each uplink subframe.
  • the UE may determine the at least two devices according to the prior art.
  • the TPC command value of each uplink subframe in the uplink subframe so that the UE can determine the transmit power of the uplink signal in each uplink subframe, thereby ensuring that the UE can successfully transmit the uplink subframe to the eNB.
  • the uplink signal in the uplink improves the transmission performance of the uplink signal and improves the system capacity of the uplink.
  • 1 is a system architecture diagram of controlling transmit power according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for controlling transmit power according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for controlling transmit power according to an embodiment of the present invention
  • FIG. 5 is a flowchart of a method for controlling transmit power according to an embodiment of the present invention.
  • FIG. 6 is a user equipment according to an embodiment of the present invention.
  • FIG. 7 is a user equipment according to an embodiment of the present invention.
  • FIG. 8 is a user equipment according to an embodiment of the present invention.
  • FIG. 9 is a user equipment according to an embodiment of the present invention.
  • FIG. 10 is a user equipment according to an embodiment of the present invention
  • FIG. 11 is a user equipment according to an embodiment of the present invention
  • FIG. 12 is a user equipment according to an embodiment of the present invention
  • FIG. 13 is a user equipment according to an embodiment of the present invention.
  • the UE 101 receives the DCI sent by the eNB 102 in a downlink subframe, where the DCI includes an index number of the TPC command, where the one downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two subframes. In the frame collection.
  • the UE 101 determines the at least two according to the index number of the TPC command.
  • the UE 101 transmits an uplink message to the eNB 102 in each uplink subframe according to the transmit power of the uplink signal in each uplink subframe.
  • the UE 101 can be specifically a mobile phone, a tablet or other smart terminal device supporting LTE TDD.
  • the TPC command value of the uplink subframe refers to the TPC command value used to adjust the uplink signal in the uplink subframe.
  • the fact that one downlink subframe corresponds to at least two uplink subframes means that the TPC command received by the UE 101 in the one downlink subframe is used to adjust the transmission power of the uplink signal in at least two uplink subframes.
  • the DCI contains a TPC command field (Command Field), which occupies 1 or 2 bits.
  • the value of this field is also called the index number of the TPC command, as shown in Table 3, which is the value when the field is 2 bits.
  • the UE 101 can find the TPC command value corresponding to the index number according to the index number of the TPC command, and the unit of the TPC command value is dB.
  • the format of the DCI may be DCI format 3/3A or DCI format 0/4.
  • the embodiment of the present invention provides a method for controlling transmit power. As shown in FIG. 2, the method includes: Step 201: A UE receives a DCI sent by an eNB in a downlink subframe, where the DCI An index number of the TPC command, where the one downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two subframe subframes.
  • the method provided by the embodiment of the present invention may be applied to an LTE TDD system, and the UE may receive one or at least two DCIs in the one downlink subframe.
  • Step 202 The UE determines a TPC command value of each uplink subframe in the at least two uplink subframes according to the index number of the TPC command.
  • the UE may determine the TPC command value of each uplink subframe in the at least two uplink subframes by using multiple implementation manners.
  • the UE may determine, according to an index number of the TPC command, a TPC command value of a subframe set to which each uplink subframe belongs to the at least two uplink subframes,
  • the TPC command value of the subframe set to which the uplink subframe belongs is used as the TPC command value of each uplink subframe.
  • the TPC command value of the subframe set refers to a TPC command value used to adjust an uplink signal in the subframe set
  • the uplink signal in the subframe set includes each uplink subframe in the subframe set. Uplink signal.
  • the UE may determine, according to the predefined information, which subframe set corresponds to the index number of the TPC command, and may determine, according to the notification signaling sent by the eNB, which one corresponds to the index number of the TPC command. Subframe collection.
  • the second embodiment may be used to determine a TPC command value of each of the at least two uplink subframes.
  • the UE may determine, according to the index number of the TPC command, a TPC command value corresponding to the index number of the TPC command, and determine, according to the number of the downlink subframe, the at least two uplink subframes.
  • An uplink subframe corresponding to the number of the downlink subframe, and the TPC command value corresponding to the index number of the TPC command is used as the TPC command value of the uplink subframe, and the other of the at least two uplink subframes
  • the TPC command value of the uplink subframe is set to a preset value. It should be noted that the TPC command value of the uplink subframe refers to the TPC command value used to adjust the uplink signal in the uplink subframe.
  • the preset value may be 0.
  • the UE may determine, according to the predefined information, which uplink subframe corresponds to the number of the downlink subframe, and may determine, according to the notification signaling sent by the eNB, a number pair with the downlink subframe. Which uplink subframe should be.
  • the third embodiment may be used to determine the TPC command value of each of the at least two uplink subframes.
  • the UE receives at least two DCIs in step 201, and the DCI in the at least two DCIs further includes an uplink index number (UL INDEX), where each DCI included in the at least two DCIs The uplink index numbers of the at least two DCIs have a corresponding relationship with the uplink subframes in the at least two uplink subframes; the UE is based on the at least two DCIs.
  • UL INDEX uplink index number
  • the TPC command included in the DCI determines an uplink subframe corresponding to the uplink index number included in the DCI in the at least two uplink subframes according to the uplink index number included in the DCI, and the TPC included in the DCI
  • the TPC command value corresponding to the index number of the command is the TPC command value of the uplink subframe corresponding to the uplink index number included in the DCI.
  • Step 203 The UE determines, according to the TPC command value of each uplink subframe, a transmit power of the uplink signal in each uplink subframe.
  • Step 204 The UE transmits an uplink signal to the eNB in each uplink subframe according to the transmit power of the uplink signal in each uplink subframe.
  • the uplink signal may be a signal on the PUCCH, a signal on the PUSCH, or an SRS.
  • a method for controlling transmit power is provided by an eNB according to an embodiment of the present invention.
  • the eNB sends a DCI to a UE in a downlink subframe, where the downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two subframe sets. And determining, by the UE, the TPC command value of each uplink subframe in the at least two uplink subframes according to the index number of the TPC command included in the DCI, and determining the TPC command value according to the TPC command value of each uplink subframe.
  • the UE may determine the at least two uplinks.
  • the TPC command value of each uplink subframe in the frame so that the UE can determine the transmit power of the uplink signal in each uplink subframe, thereby ensuring that the UE can successfully
  • the eNB transmits the uplink signal in each uplink subframe, and improves the transmission performance of the uplink signal, thereby improving the system capacity of the uplink.
  • the UE may determine the TPC command value of the subframe set to which each of the at least two uplink subframes belongs, and determine the each according to the TPC command value of the subframe set to which each uplink subframe belongs.
  • the TPC command value of the uplink subframe so that the uplink subframes in the same subframe set in the at least two uplink subframes have the same TPC command value.
  • FIG. 3 is a flowchart of a method for controlling transmit power according to an embodiment of the present invention, where the method includes:
  • Step 301 The eNB sends a DCI to the UE in a downlink subframe, where the DCI includes an index number of the TPC command, and the one downlink subframe corresponds to at least two uplink subframes.
  • the eNB may send one or at least two DCIs to the UE within the one downlink subframe.
  • Step 302 The UE receives the DCI in the downlink subframe, and determines the downlink subframe.
  • the eNB may notify the UE of the membership of each subframe set in advance. For example, the eNB notifies the UE that the uplink subframes 2, 3, 7 and 8 are located in the first subframe set, and the uplink subframes 4 and 9 are located in the second subframe set.
  • the UE may determine that the uplink subframe 4 is located in the first subframe set, and the uplink subframe 7 is located in the second subframe set. In other words, the UE can
  • Step 303 The UE determines, according to the index number of the TPC command, a TPC command value of a subframe set to which each uplink subframe belongs in the at least two uplink subframes.
  • the UE may determine, by using various embodiments, a TPC command value of the subframe set to which each uplink subframe belongs.
  • the UE may determine, according to an index number of the TPC command, a TPC command value of one subframe set in the at least two subframe sets, where The TPC command value of the subframe set corresponds to the index number of the TPC command, and the TPC command value of the other subframe set in the at least two subframe sets is set to a preset value.
  • the UE may pre-store the correspondence between the index number of the TPC command and the TPC command value of the subframe set.
  • the eNB may notify the UE of the correspondence by using signaling, and after receiving the corresponding relationship, the UE stores the correspondence.
  • the UE stores a correspondence table as shown in Table 4, where "-" indicates that the TPC command value of the current subframe set is a preset value. For example, when the index of the TPC command included in the DCI is 0, the UE determines that the TPC command value of the first subframe set is -ldB, and the TPC command value of the second subframe set is a preset value.
  • the preset value may be notified by the eNB to the UE.
  • This preset value can be 0. Table 4:
  • the UE receives one in step 302.
  • the UE may determine a TPC command value of one subframe of the at least two subframe sets in the following manner:
  • the UE may determine, according to an index number of the TPC command, a subframe set corresponding to the index number in the at least two subframe sets, and determine, according to an index number of the TPC command, a TPC command value corresponding to the index number, and The TPC command value corresponding to the index number is used as the command value of the TPC of one subframe set corresponding to the index number.
  • the second embodiment may be used to determine a TPC command value of the subframe set to which each uplink subframe belongs.
  • the UE is configured according to the The index number of the TPC command determines a TPC command value corresponding to the index number of each of the at least two subframe sets.
  • the UE may pre-store the correspondence between the index number of the TPC command and the TPC command of the subframe set.
  • the correspondence may be notified to the UE in advance by the eNB.
  • the UE stores a correspondence table as shown in Table 5. For example, when the index of the TPC command included in the DCI is 0, the UE determines that the TPC command of the first subframe set is -ldB, and the TPC command value of the second subframe set is -4 dB.
  • the UE receives one in step 302.
  • the third embodiment may be used to determine the TPC command value of the subframe set to which each uplink subframe belongs.
  • the UE receives at least two DCIs in step 302, where an index number of a TPC command included in each DCI of the at least two DCIs is different from each other, and the at least two DCIs are different.
  • the index number of the TPC command included in the DCI has a one-to-one correspondence with the TPC command of the subframe set in the at least two subframe sets, and the UE according to the corresponding relationship and each DCI of the at least two DCIs
  • the index number of the included TPC command determines a TPC command value of each of the at least two subframe sets.
  • the UE may pre-store a one-to-one correspondence between an index number of a TPC command included in the DCI of the at least two DCIs and a TPC command of the subframe set in the at least two subframe sets.
  • the corresponding relationship may be notified to the UE in advance by the eNB.
  • the UE stores a relational table as shown in Table 6.
  • the UE receives two DCIs in the downlink subframe, which are a first DCI and a second DCI, respectively, and the TPC command included in the first DCI
  • the index number is 0, and the index of the TPC command included in the second DCI is 1.
  • the TPC command value of the first subframe set is -ldB
  • the TPC command value of the second subframe set is ldB.
  • Step 304 The UE uses the TPC command value of the subframe set to which each uplink subframe belongs as the TPC command value of each uplink subframe.
  • the uplink subframes 7 and 8 are located in the first subframe set
  • the uplink subframes 4 and 9 are located in the second subframe set
  • the TPC command value of the first subframe set is -ldB
  • the TPC command value of the second subframe set is For -4dB
  • the TPC command values of the uplink subframes 7 and 8 are both -ldB
  • the TPC command values of the uplink subframes 4 and 9 are both -4dB.
  • Step 305 The UE determines, according to the TPC command value of each uplink subframe, a transmit power of the uplink signal in each uplink subframe.
  • Step 306 The UE transmits an uplink signal to the eNB in each uplink subframe according to the transmit power of the uplink signal in each uplink subframe.
  • a method for controlling transmit power is provided by an eNB according to an embodiment of the present invention.
  • the eNB sends a DCI to a UE in a downlink subframe, where the downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two subframe sets. And determining, by the UE, the TPC command value of each uplink subframe in the at least two uplink subframes according to the index number of the TPC command included in the DCI, and determining the TPC command value according to the TPC command value of each uplink subframe.
  • the UE may determine the at least two uplinks.
  • the TPC command value of each uplink subframe in the frame so that the UE can determine the transmit power of the uplink signal in each uplink subframe, thereby ensuring that the UE can successfully transmit the intra-subframe to the eNB.
  • the uplink signal improves the transmission performance of the uplink signal and improves the system capacity of the uplink.
  • the UE may first determine each of the at least two uplink subframes The TPC command value of the subframe set to which the uplink subframe belongs, and the TPC command value of each uplink subframe is determined according to the TPC command value of the subframe set to which each uplink subframe belongs, so that the at least two uplink subframes are obtained.
  • the uplink subframes located in the same subframe set have the same TPC command value.
  • FIG. 4 is a flowchart of a method for controlling transmit power according to an embodiment of the present invention, where the method includes:
  • Step 401 The eNB sends a DCI to the UE in a downlink subframe, where the DCI includes an index number of the TPC command, and the one downlink subframe corresponds to at least two uplink subframes.
  • the eNB sends a DCI to the UE in this downlink subframe.
  • Step 402 The UE receives the DCI in the downlink subframe, and determines the downlink subframe. For detailed description of step 402, refer to step 302.
  • Step 403 The UE determines, according to an index number of the TPC command, a TPC command value corresponding to the index number.
  • the UE pre-stores the correspondence between the index number of the TPC command and the TPC command value.
  • the UE stores a relational table as shown in Table 7.
  • Table 7 When the index number of the TPC command received by the UE is 0, according to Table 7, the TPC command value corresponding to the index number of the TPC command is -4 dB.
  • Step 404 The UE determines the at least two uplink subframes according to the number of the downlink subframe. An uplink subframe corresponding to the number of the downlink subframe.
  • Step 405 The UE uses the TPC command value corresponding to the index number as the TPC command value of the uplink subframe, and sets the TPC command value of the other uplink subframes in the at least two uplink subframes to a preset value. .
  • the preset value may be 0.
  • the downlink subframe 1 corresponds to the uplink subframes 7 and 8 in the same radio frame
  • the uplink subframe 7 is located in the first subframe set
  • the uplink subframe 8 is located in the second subframe set. It can be determined according to Table 8 that the uplink subframe corresponding to the number 1 is the uplink subframe 7, and therefore, the TPC command value corresponding to the index number of the TPC command received in the downlink subframe 1 is used as the TPC command of the uplink subframe 7.
  • the value is set to the preset value of the TPC command value of the uplink subframe 8.
  • Step 406 The UE determines, according to a TPC command value of each uplink subframe in the at least two uplink subframes, a transmit power of the uplink signal in each uplink subframe.
  • Step 407 The UE transmits an uplink signal to the eNB in each uplink subframe according to the transmit power of the uplink signal in each uplink subframe.
  • a method for controlling transmit power is provided by an eNB according to an embodiment of the present invention.
  • the eNB sends a DCI to a UE in a downlink subframe, where the downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two subframe sets.
  • the UE determines the index according to the index number of the TPC command included in the DCI.
  • the UE transmits the uplink signal to the eNB, and the UE may determine a TPC command value of each of the at least two uplink subframes, so that the UE may determine the The transmit power of the uplink signal in the uplink subframe, thereby ensuring that the UE can successfully transmit the uplink signal in each uplink subframe to the eNB, and improve the transmission performance of the uplink signal, and improve the uplink system. capacity.
  • FIG. 5 it is a flowchart of a method for controlling transmit power according to an embodiment of the present invention, where the method includes:
  • Step 501 The eNB sends at least two DCIs to the UE in one downlink subframe, where the one downlink subframe corresponds to at least two uplink subframes.
  • the DCI of the at least two DCIs includes an uplink index number and an index number of the TPC command, and the uplink index numbers included in each DCI of the at least two DCIs are different from each other, and the uplink index included in the DCI of the at least two DCIs The number has a corresponding relationship with the uplink subframe in the at least two uplink subframes.
  • Step 502 The UE receives the DCI in the downlink subframe, and determines the downlink subframe. For detailed description of step 502, refer to step 302.
  • Step 504 The UE determines, according to the uplink index number included in the DCI, an uplink subframe corresponding to an uplink index number included in the DCI in the at least two uplink subframes, and the TPC command included in the DCI is included.
  • the TPC command value corresponding to the index number is used as the uplink index number pair included in the DCI.
  • the TPC command value of the corresponding upstream subframe is used as the uplink index number pair included in the DCI.
  • the uplink index number in the DCI occupies 2 bits.
  • the UE may pre-store the correspondence between the uplink index number included in the DCI and the number of the uplink subframe.
  • the eNB may send the correspondence to the UE by using signaling in advance.
  • the corresponding relationship may be as shown in Table 9.
  • the UE receives two DCIs in a downlink subframe, which are respectively a first DCI and a second DCI, and the first DCI includes an uplink index number of 1,
  • the uplink index number included in the second DCI is 2.
  • the uplink index number included in the first DCI corresponds to the uplink subframe 7
  • the uplink index number included in the second DCI corresponds to the uplink subframe 8.
  • the TPC command value corresponding to the index number of the TPC included in the first DCI is -ldB
  • the TPC command value corresponding to the index number of the TPC included in the second DCI is -4 dB
  • the TPC command value of the uplink subframe 7 is -ldB
  • the TPC command value of the uplink subframe 8 is -4 dB.
  • two bits of the uplink index number in the DCI are not simultaneously 1.
  • Step 505 The UE determines, according to a TPC command value of each uplink subframe in the at least two uplink subframes, a transmit power of the uplink signal in each uplink subframe.
  • Step 506 The UE transmits the uplink signal to the eNB in each uplink subframe according to the transmit power of the uplink signal in each uplink subframe.
  • a method for controlling transmit power is provided by an eNB according to an embodiment of the present invention.
  • the eNB sends a DCI to a UE in a downlink subframe, where the downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two subframe sets. And determining, by the UE, the TPC command value of each uplink subframe in the at least two uplink subframes according to the index number of the TPC command included in the DCI, and determining the TPC command value according to the TPC command value of each uplink subframe.
  • the UE may Determining a TPC command value of each of the at least two uplink subframes, so that the UE can determine a transmit power of the uplink signal in each uplink subframe, thereby ensuring that the UE can successfully transmit to the eNB.
  • the uplink signal in each uplink subframe improves the transmission performance of the uplink signal and improves the system capacity of the uplink.
  • a UE according to an embodiment of the present invention includes:
  • the receiver 601 is configured to receive the DCI sent by the eNB in a downlink subframe, where the DCI includes an index number of the TPC command, where the one downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two In the sub-frame collection.
  • the processor 602 is configured to determine, according to an index number of the TPC command received by the receiver 601, a TPC command value of each uplink subframe in the at least two uplink subframes, and according to the TPC command of each uplink subframe The value determines the transmit power of the uplink signal in each uplink subframe.
  • the transmitter 603 is configured to transmit, according to the transmit power of the uplink signal in each uplink subframe determined by the processor 602, the uplink signal to the eNB in each uplink subframe.
  • the processor 602 can determine the TPC command value of each of the at least two uplink subframes in multiple manners. As a first implementation manner of the embodiment of the present invention, the processor 602 is specifically configured to determine, according to an index number of the TPC command received by the receiver 601, an uplink subframe to which the at least two uplink subframes belong. The TPC command value of the subframe set, the TPC command value of the subframe set to which each uplink subframe belongs is used as the TPC command value of each uplink subframe.
  • the second embodiment of the present invention may further determine a TPC command value of each uplink subframe in the at least two uplink subframes.
  • the processor 602 is specifically configured to determine, according to the index number of the TPC command received by the receiver 601, a TPC command value corresponding to the index number, and determine the number of the downlink subframe according to the number of the downlink subframe.
  • the third embodiment of the present invention may further determine a TPC command value of each uplink subframe in the at least two uplink subframes.
  • the UE further includes a memory.
  • the receiver 601 is specifically configured to receive, in the one downlink sub-frame, at least two DCIs sent by the eNB, where the DCI in the at least two DCIs further includes an uplink index number, and each DCI of the at least two DCIs The included uplink index numbers are different from each other;
  • the memory is configured to store a correspondence between an uplink index number included in the DCI of the at least two DCIs and an uplink subframe in the at least two uplink subframes, where the at least two DCIs are the receivers Received by 601;
  • the processor 602 is specifically configured to determine, according to the uplink index number included in the DCI and the corresponding relationship stored in the memory, the TPC command included in the DCI in the at least two DCIs, and determine the at least two uplink subframes in the at least two uplink subframes.
  • the receiver 601 can be a transceiver antenna
  • the processor 602 can be various types of processing chips
  • the receiver 603 can be a transceiver antenna
  • the memory can be various storage media.
  • a UE according to an embodiment of the present invention includes:
  • the receiver 701 is configured to receive the DCI sent by the eNB in a downlink subframe, where the DCI includes an index number of the TPC command, where the one downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two In the sub-frame collection.
  • the processor 702 is configured to determine, according to an index number of the TPC command received by the receiver 701, a TPC command value of the subframe set to which each of the at least two uplink subframes belongs, and each of the uplink subframes
  • the TPC command value of the subframe set to which the frame belongs is used as the TPC command value of each uplink subframe.
  • the processor 702 is further configured to determine, according to the TPC command value of each uplink subframe, a transmit power of the uplink signal in each uplink subframe.
  • the transmitter 703 is configured to transmit, according to the transmit power of the uplink signal in each uplink subframe determined by the processor 702, the uplink signal to the eNB in each uplink subframe.
  • the processor 702 can determine the TPC command value of the subframe set to which each uplink subframe belongs in multiple manners.
  • the processor 702 is specifically configured to determine, according to an index number of the TPC command received by the receiver 701, a TPC command value of one subframe set in the at least two subframe sets.
  • the TPC command value of the one subframe set corresponds to the index number
  • the TPC command value of the other subframe set in the at least two subframe sets is set to a preset value.
  • the preset value may be sent by the eNB to the UE. This preset value can be 0.
  • the receiver 701 is specifically configured to receive, in the one downlink subframe, a DCI sent by the eNB.
  • the processor 702 may be specifically configured to determine, according to an index number of the TPC command received by the receiver 701, the index corresponding to the index number in the at least two subframe sets.
  • the set of subframes determines a TPC command value corresponding to the index number according to the index number of the TPC command, and uses the TPC command value corresponding to the index number as the TPC command value of the one subframe set.
  • the second embodiment of the present invention may further determine a TPC command value of a subframe set to which each uplink subframe belongs.
  • the processor 702 is specifically configured to determine, according to an index number of the TPC command received by the receiver 701, a TPC command corresponding to the index number of each subframe set in the at least two subframe sets. value.
  • the receiver 701 may be specifically configured to receive, in the downlink subframe, a DCI sent by the eNB.
  • the third embodiment of the present invention may further determine a TPC command value of a subframe set to which each uplink subframe belongs.
  • the UE further includes a memory.
  • the receiver 701 is specifically configured to receive, in the one downlink sub-frame, at least two DCIs sent by the eNB, where an index number of the TPC command included in each DCI of the at least two DCIs Different from each other;
  • the memory is configured to store a one-to-one correspondence between an index number of a TPC command included in the DCI of the at least two DCIs and a TPC command of the subframe set in the at least two subframe sets, where the at least two DCIs are Received by the receiver 701;
  • the processor 702 is specifically configured to determine a TPC of each of the at least two subframe sets according to a one-to-one correspondence stored in the memory and an index number of a TPC command included in each DCI of the at least two DCIs. Command value.
  • a UE includes:
  • the receiver 801 is configured to receive the DCI sent by the eNB in a downlink subframe, where the DCI includes an index number of the TPC command, where the one downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two In the sub-frame collection.
  • the processor 802 is configured to determine, according to an index number of the TPC command received by the receiver 801, a TPC command value corresponding to the index number, and determine, according to the number of the downlink subframe, the at least two uplink subframes.
  • An uplink subframe corresponding to the number of the downlink subframe, the TPC command value corresponding to the index number is used as the TPC command value of the uplink subframe, and the other uplink subframes in the at least two uplink subframes are The TPC command value is set to the preset value.
  • the processor 802 is further configured to determine, according to a TPC command value of each of the at least two uplink subframes, a transmit power of the uplink signal in each uplink subframe.
  • the transmitter 803 is configured to transmit, according to the transmit power of the uplink signal in each uplink subframe determined by the processor 802, the uplink signal to the eNB in each uplink subframe.
  • the preset value may be sent by the eNB to the UE. This preset value can be 0.
  • the receiver 801 is specifically configured to receive the eNB in the downlink subframe. Send a DCI.
  • a UE according to an embodiment of the present invention includes:
  • the receiver 901 is configured to receive, in a downlink subframe, at least two DCIs sent by the eNB, where the one downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two subframe sets.
  • the DCI in the at least two DCIs includes an uplink index number and an index number of the TPC command, and the uplink index numbers included in each DCI of the at least two DCIs are different from each other.
  • the memory 902 is configured to store a correspondence between an uplink index number included in the DCI of the at least two DCIs and an uplink subframe in the at least two uplink subframes, where the at least two DCIs are Received by receiver 901.
  • the processor 903 is configured to perform an index according to a TPC command included in the DCI of the at least two DCIs.
  • the processor 903 is further configured to determine, according to a TPC command value of each uplink subframe in the at least two uplink subframes, a transmit power of the uplink signal in each uplink subframe.
  • the transmitter 904 is configured to transmit, according to the transmit power of the uplink signal in each uplink subframe determined by the processor 903, the uplink signal to the eNB in each uplink subframe.
  • a UE includes: The receiving unit 1001 is configured to receive the DCI sent by the eNB in a downlink subframe, where the DCI includes an index number of the TPC command, where the one downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two In the sub-frame collection.
  • the processing unit 1002 is configured to determine, according to an index number of the TPC command received by the receiving unit 1001, a TPC command value of each uplink subframe in the at least two uplink subframes, and according to the TPC command of each uplink subframe The value determines the transmit power of the uplink signal in each uplink subframe.
  • the transmitting unit 1003 is configured to transmit, according to the transmit power of the uplink signal in each uplink subframe determined by the processing unit 1002, the uplink signal to the eNB in each uplink subframe.
  • the processing unit 1002 may determine a TPC command value of each of the at least two uplink subframes in multiple manners. As a first implementation manner of the embodiment of the present invention, the processing unit 1002 is specifically configured to determine, according to an index number of a TPC command received by the receiving unit 1001, an uplink subframe to which the at least two uplink subframes belong. The TPC command value of the subframe set, the TPC command value of the subframe set to which each uplink subframe belongs is used as the TPC command value of each uplink subframe.
  • the second embodiment of the present invention may further determine a TPC command value of each uplink subframe in the at least two uplink subframes.
  • the processing unit 1002 is specifically configured to determine, according to the index number of the TPC command received by the receiving unit 1001, a TPC command value corresponding to the index number, and determine the number of the downlink subframe according to the number of the downlink subframe.
  • the third embodiment of the present invention may further determine a TPC command value of each uplink subframe in the at least two uplink subframes.
  • the UE further includes a storage unit.
  • the receiving unit 1001 is specifically configured to receive, in the one downlink subframe, at least two DCIs sent by the eNB, where the DCI in the at least two DCIs further includes an uplink index number, and each DCI of the at least two DCIs The included uplink index numbers are different from each other;
  • the storage unit is configured to store a correspondence between an uplink index number included in the DCI of the at least two DCIs and an uplink subframe in the at least two uplink subframes, where the at least two DCIs are the receiving Received by unit 1001;
  • the processing unit 1002 is specifically configured to determine, according to the TLC command included in the DCI in the at least two DCIs, the uplink index number included in the DCI and the corresponding relationship stored in the storage unit, to determine the at least two uplink subframes.
  • a UE according to an embodiment of the present invention includes:
  • the receiving unit 1101 is configured to receive the DCI sent by the eNB in a downlink subframe, where the DCI includes an index number of the TPC command, where the one downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two In the sub-frame collection.
  • the processing unit 1102 is configured to determine, according to an index number of the TPC command received by the receiving unit 1101, a TPC command value of a subframe set to which each uplink subframe belongs to the at least two uplink subframes, where the uplink subframe is The TPC command value of the subframe set to which the frame belongs is used as the TPC command value of each uplink subframe.
  • the processing unit 1102 is further configured to determine, according to the TPC command value of each uplink subframe, a transmit power of the uplink signal in each uplink subframe.
  • the transmitting unit 1103 is configured to transmit, according to the transmit power of the uplink signal in each uplink subframe determined by the processing unit 1102, the uplink signal to the eNB in each uplink subframe.
  • the processing unit 1102 can determine the TPC command value of the subframe set to which each uplink subframe belongs in multiple manners.
  • the processing unit 1102 is specifically configured to determine, according to an index number of a TPC command received by the receiving unit 1101, a TPC command value of one subframe set in the at least two subframe sets. , where the TPC of this one subframe set The command value corresponds to the index number, and the TPC command value of the other subframe set in the at least two subframe sets is set to a preset value.
  • the preset value may be sent by the eNB to the UE. This preset value can be 0.
  • the receiving unit 1101 is specifically configured to receive, in the one downlink subframe, a DCI sent by the eNB.
  • the processing unit 1102 may be specifically configured to determine, according to an index number of the TPC command received by the receiving unit 1101, a corresponding to the index number in the at least two subframe sets.
  • the set of subframes determines a TPC command value corresponding to the index number according to the index number of the TPC command, and uses the TPC command value corresponding to the index number as the TPC command value of the one subframe set.
  • the second embodiment of the present invention may further determine a TPC command value of a subframe set to which each uplink subframe belongs.
  • the processing unit 1102 is specifically configured to determine, according to an index number of the TPC command received by the receiving unit 1101, a TPC command corresponding to the index number of each subframe set in the at least two subframe sets. value.
  • the receiving unit 1101 may be specifically configured to receive, in the one downlink subframe, a DCI sent by the eNB.
  • the third embodiment of the present invention may further determine a TPC command value of a subframe set to which each uplink subframe belongs.
  • the UE further includes a storage unit.
  • the receiving unit 1101 is specifically configured to receive, in the one downlink sub-frame, at least two DCIs sent by the eNB, where the index numbers of the TPC commands included in each of the at least two DCIs are different from each other;
  • the storage unit is configured to store a correspondence between an index number of a TPC command included in the DCI of the at least two DCIs and a TPC command of the subframe set in the at least two subframe sets, where the at least two DCIs are Received by the receiving unit 1101;
  • the processing unit 1102 can be specifically configured to store the corresponding relationship according to the storage unit and An index number of a TPC command included in each of the at least two DCIs, determining a TPC command value of each of the at least two subframe sets.
  • a UE according to an embodiment of the present invention includes:
  • the receiving unit 1201 is configured to receive the DCI sent by the eNB in a downlink subframe, where the DCI includes an index number of the TPC command, where the one downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two In the sub-frame collection.
  • the processing unit 1202 is configured to determine, according to the index number of the TPC command received by the receiving unit 1201, a TPC command value corresponding to the index number, and determine, according to the number of the downlink subframe, the at least two uplink subframes.
  • An uplink subframe corresponding to the number of the downlink subframe, the TPC command value corresponding to the index number is used as the TPC command value of the uplink subframe, and the other uplink subframes in the at least two uplink subframes are The TPC command value is set to the preset value.
  • the processing unit 1202 is further configured to determine, according to a TPC command value of each uplink subframe in the at least two uplink subframes, a transmit power of the uplink signal in each uplink subframe.
  • the transmitting unit 1203 is configured to transmit, according to the transmit power of the uplink signal in each uplink subframe determined by the processing unit 1202, the uplink signal to the eNB in each uplink subframe.
  • the preset value may be sent by the eNB to the UE. This preset value can be 0.
  • a UE according to an embodiment of the present invention includes:
  • the receiving unit 1301 is configured to receive, in a downlink subframe, at least two DCIs sent by the eNB, where the one downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two subframe sets.
  • the DCI in the at least two DCIs includes an uplink index number and an index number of the TPC command, and the uplink index numbers included in each of the at least two DCIs are different from each other.
  • the storage unit 1302 is configured to store a correspondence between an uplink index number included in the DCI of the at least two DCIs and an uplink subframe in the at least two uplink subframes, where the at least two
  • the DCI is received by the receiving unit 1301.
  • the processing unit 1303 is configured to determine, according to the TLC command included in the DCI of the at least two DCIs, the uplink index number included in the DCI and the corresponding relationship stored by the storage unit 1302, to determine the at least two uplink subframes.
  • An uplink subframe corresponding to the uplink index number included in the DCI, and the index number of the TPC command included in the DCI is further used by the processing unit 1303 according to each uplink subframe in the at least two uplink subframes.
  • the TPC command value determines the transmit power of the uplink signal in each uplink subframe;
  • the transmitting unit 1304 is configured to transmit, according to the transmit power of the uplink signal in each uplink subframe determined by the processing unit 1303, the uplink signal to the eNB in each uplink subframe.
  • the embodiment of the invention further provides a method for controlling transmit power, including:
  • Step A The eNB sends a DCI to the UE in a downlink subframe, where the DCI includes a TPC command, the downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two subframe sets.
  • Step B The eNB sends the notification signaling to the UE, to notify the UE that the TPC command is used for power adjustment of an uplink signal in one uplink subframe of the at least two uplink subframes or used in the at least two subframe sets. Power adjustment of the uplink signal within a set of subframes.
  • a method and a device for controlling transmission power are provided by an eNB according to an embodiment of the present invention.
  • the eNB sends a DCI to a UE in a downlink subframe, where the downlink subframe corresponds to at least two uplink subframes, and the at least two uplink subframes are located in at least two subframes.
  • the UE determines, according to the index number of the TPC command included in the DCI, a TPC command value of each uplink subframe in the at least two uplink subframes, according to the TPC command value of each uplink subframe.
  • the UE may determine a TPC command value of each uplink subframe in the at least two uplink subframes, so that the UE can determine The transmit power of the uplink signal in each uplink subframe, thereby ensuring that the UE can successfully transmit the uplink signal in each uplink subframe to the eNB, and improve the transmission performance of the uplink signal, and improve the uplink. System capacity.
  • the UE may determine the TPC command value of the subframe set to which each of the at least two uplink subframes belongs, and determine the each according to the TPC command value of the subframe set to which each uplink subframe belongs.
  • the TPC command value of the uplink subframe so that the uplink subframes in the same subframe set in the at least two uplink subframes have the same TPC command value.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a computer.
  • computer readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage media or other magnetic storage device, or can be used for carrying or storing in the form of an instruction or data structure.
  • the desired program code and any other medium that can be accessed by the computer may suitably be a computer readable medium.
  • the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwaves are included in the fixing of the associated media.
  • coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwaves are included in the fixing of the associated media.
  • a disk and a disc include a compact disc (CD), a laser disc, a compact disc, a digital versatile disc (DVD), a floppy disc, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media. It is to be noted that the various embodiments in the present specification are described in a progressive manner, and the same similar parts between the various embodiments may be referred to each other, and each embodiment focuses on different embodiments from other embodiments. At the office.
  • the device embodiment since it is basically similar to the method embodiment, it is described as a comparison, and the execution process of each unit specific function can be referred to the description of the method embodiment.
  • the device embodiments described above are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, ie may be located in one place. , or it can be distributed to multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without any creative effort.

Abstract

本发明涉及通信技术领域,尤其涉及一种控制发射功率的方法及装置。本发明实施例提供一种控制发射功率的方法,UE在一个下行子帧内接收eNB发送的DCI,该DCI包含TPC命令的索引号,这一个下行子帧对应至少两个上行子帧,该至少两个上行子帧位于至少两个子帧集合中,该UE根据该TPC命令的索引号,确定该至少两个上行子帧中每个上行子帧的TPC命令值,根据该每个上行子帧的TPC命令值,确定该每个上行子帧内上行信号的发射功率,并按照该每个上行子帧内上行信号的发射功率,在该每个上行子帧内向该eNB发射该上行信号。通过本发明实施例提供的方法,使得该UE能够成功地在每个上行子帧内向该eNB发射上行信号。

Description

一种控制发射功率的方法 置 技术领域
本发明涉及通信技术领域, 尤其涉及一种控制发射功率的方法及装置 t
背景技术
在长期演进 ( Long Term Evolution, LTE ) 时分双工 (Time Division Duplexing, TDD ) 系统中, 上行链路( Uplink, UL )和下行链路( Downlink, DL )可以使用同一频率的不同时隙 (Time Slot, ST ) 。 在该系统中, 时间域 由无线帧( Radio Frame, RF )组成,无线帧通过系统帧号( System Frame Number, SFN )进行标识, 每个无线帧由 10个长度为 1毫秒(ms ) 的子帧 (Subframe ) 组成。
为满足上下行非对称业务的需求, 可以根据上下行非对称业务的类型, 配 置上下行配比 ( Uplink-Downlink Configuration ) 。 在现有的 LTE TDD系统中 共有 7种上下行配比, 如表 1所示。 其中, D表示下行子帧, U表示上行子帧, S表示特殊子帧。 需要说明的是, 特殊子帧可以作为一种有效的下行子帧, 特 殊子帧可以包括下行导频时隙 (Downlink Pilot Tme Slot, DWPTS ) , 保护时 隙 (Guard Period, GP )和上行导频时隙 ( Uplink Pilot Time Slot, UPPTS ) 。
表 1 :
Figure imgf000003_0001
用户设备( User Equipment, UE )在上行子帧内向演进型基站( Evolved Node B, eNB )发送上行信号前, 需要根据该 eNB发送的发射功率控制 (Transmit Power Control, TPC )命令, 调整该上行信号的发射功率, 以使得该上行信号 的发射功率能够满足该 eNB接收功率的要求。 其中, 该 eNB在下行子帧内, 通过下行控制信息( Downlink Control Information, DCI )向该 UE发送该 TPC 命令, 该 DCI与该上行信号之间存在严格的时序关系。
在 LTE系统中, 一般在开环功率控制的基础上,将反馈信息作为动态偏移 量(offset ) , 从而实现闭环功率控制。 采用闭环功率控制的上行信号包括物理 上行控制信道(Physical Uplink Control Channel, PUCCH )上的信号, 物理上 行共享信道( Physical Uplink Shared Channel, PUSCH )上的信号或探测参考信 号 ( Sounding Reference Signal, SRS ) 。
由于在一个系统帧中上行子帧的数目有可能大于下行子帧的数目, 因此 DCI中的 TPC命令有可能用于调整至少两个上行子帧内上行信号的发射功率。 例如, 在上下行配比为 0时, 上行子帧的数目为 6, 下行子帧的数目为 4 (包 括特殊子帧) 。 因此, 在上下行配比为 0时, 上行子帧的数目大于下行子帧的 数目, 这时, 就需要 DCI中的 TPC命令能够用于调整至少两个上行子帧内上 行信号的发射功率。 假设需要进行功率调整的上行信号位于编号为 i
( 1 = 2,3,4,7,8,9 ) 的上行子帧内, 对编号为 i的上行子帧 (以下筒称上行子帧 i ) 内的上行信号进行功率调整的 TPC命令由 eNB在编号为 i- KPUSCT的下行子帧
(以下筒称下行子帧 i - KPUSCH ) 内向 UE发送, 其中 KPUSCH的取值如表 2所示。 从表 2可知, 在上下行配比为 0的情况下, 上行子帧 7对应的 KPUSCH为 6, 上行 子帧 8对应的 KpuseH为 7, 因此,用于调整上行子帧 7和上行子帧 8内上行信号 的发射功率的 TPC命令都是在下行子帧 1 (虽然子帧 1是特殊子帧, 但特殊子 帧也可以作为一种有效的下行子帧) 内向该 UE发送的, 也就是说, 该 eNB在 下行子帧 1内发送的 TPC命令用于调整在上行子帧 7和上行子帧 8内上行信号 的发射功率。 表 2:
Figure imgf000005_0001
在现有技术中, 为了降低小区间的干扰, 需要控制上行信号的发射功率( 由于小区间的上下行配比可能不同, 所以, 在某些子帧内可能存在基站对基站 的干扰。 例如, 小区 A的上下行配比为 0, 与小区 A相邻的小区 B的上下行配 比为 1 , 那么在子帧 4内, 小区 A中的终端向小区 A中的 eNB A发送上行信 号, 小区 B中的 eNB B向小区 B中的终端发送下行信号, 这时, eNB B发送 的下行信号将会对 eNB A接收的上行信号产生很强的干扰。为了降低小区间的 干扰, 一般把同向干扰的上行子帧划分到一个子帧集合, 把异向干扰的上行子 帧划分到另一个子帧集合, 不同子帧集合内的上行信号,用不同的 TPC命令值 进行功率调整。 其中, 同向干扰包括上行信号对上行信号的干扰或下行信号对 下行信号的干扰, 异向干扰包括上行信号对下行信号的干扰或下行信号对上行 信号的干扰。 需要说明的是, 如果一个上行信号在上行子帧 i内, 而该上行子 帧 i被划分到子帧集合 A, 那么该上行信号也位于子帧集合 A内。
通过对现有技术的分析, 发明人认为现有技术至少存在以下问题: 在上下行配比为 0时, 在下行子帧 1 内的 TPC命令用于调整上行子帧 7 和上行子帧 8内上行信号的发射功率。 但是上行子帧 7和上行子帧 84艮有可能 位于不同的子帧集合。 当上行子帧 7和上行子帧 8位于不同的子帧集合时, UE 根据下行子帧 1内的 TPC命令,只能调整上行子帧 7或上行子帧 8内上行信号 的发射功率, 无法调整另一个上行子帧内上行信号的发射功率, 此时, 该另一 个上行子帧内的上行信号的发射功率将无法满足 eNB的接收功率的要求,从而 导致该另一个上行子帧内上行信号发射失败。
发明内容
为克服现有技术的缺陷, 本发明实施例的目的在于提供一种控制发射功率 的方法及装置,以便在一个下行子帧内的 TPC命令用于调整至少两个上行子帧 内上行信号的发射功率, 且该至少两个上行子帧位于至少两个子帧集合中时,
UE 能够成功地向 eNB 发送该至少两个上行子帧中每个上行子帧内的上行信
第一方面, 本发明实施例提供一种控制发射功率的方法, 包括:
UE在一个下行子帧内接收 eNB发送的 DCI, 该 DCI包含 TPC命令的索 引号, 这一个下行子帧对应至少两个上行子帧, 该至少两个上行子帧位于至少 两个子帧集合中;
该 UE根据该 TPC命令的索引号,确定该至少两个上行子帧中每个上行子 帧的 TPC命令值;
该 UE根据该每个上行子帧的 TPC命令值,确定该每个上行子帧内上行信 号的发射功率;
该 UE按照该每个上行子帧内上行信号的发射功率, 在该每个上行子帧内 向该 eNB发射该上行信号。
在第一方面的第一种可能的实施方式中,该 UE根据该 TPC命令的索引号, 确定该至少两个上行子帧中每个上行子帧的 TPC命令值, 包括:
该 UE根据该 TPC命令的索引号,确定该至少两个上行子帧中每个上行子 帧所属的子帧集合的 TPC命令值;
该 UE将该每个上行子帧所属的子帧集合的 TPC命令值作为该每个上行子 帧的 TPC命令值。
结合第一方面的第一种可能的实施方式, 在第一方面的第二种可能的实施 方式中, 该 UE根据该 TPC命令的索引号, 确定该至少两个上行子帧中每个上 行子帧所属的子帧集合的 TPC命令值, 包括:
该 UE根据该 TPC命令的索引号,确定该至少两个子帧集合中一个子帧集 合的 TPC命令值, 其中, 这一个子帧集合的 TPC命令值与该索引号对应; 该 UE将该至少两个子帧集合中其他子帧集合的 TPC命令值置为预设值。 结合第一方面的第一种可能的实施方式, 在第一方面的第三种可能的实施 方式中, 该 UE根据该 TPC命令的索引号, 确定该至少两个上行子帧中每个上 行子帧所属的子帧集合的 TPC命令值, 包括:
该 UE根据该 TPC命令的索引号,确定该至少两个子帧集合中每个子帧集 合的与该索引号对应的 TPC命令值。
结合第一方面的第一种可能的实施方式, 在第一方面的第四种可能的实施 方式中, 该 UE在这一个下行子帧内接收该 eNB发送的该 DCI, 包括:
该 UE在这一个下行子帧内接收该 eNB发送的至少两个 DCI , 其中, 该至 少两个 DCI中每个 DCI所包含的 TPC命令的索引号互不相同,该至少两个 DCI 中 DCI包含的 TPC命令的索引号与该至少两个子帧集合中子帧集合的 TPC命 令具有——对应的关系;
贝 |J , 该 UE根据该 TPC命令的索引号, 确定该至少两个上行子帧中每个上 行子帧所属的子帧集合的 TPC命令值, 包括:
该 UE根据该——对应的关系以及该至少两个 DCI中每个 DCI所包含的 TPC命令的索引号, 确定该至少两个子帧集合中每个子帧集合的 TPC命令值。
在第一方面的第五种可能的实施方式中,该 UE根据该 TPC命令的索引号, 确定该至少两个上行子帧中每个上行子帧的 TPC命令值, 包括:
该 UE根据该 TPC命令的索引号, 确定与该索引号对应的 TPC命令值; 该 UE根据这一个下行子帧的编号, 确定该至少两个上行子帧中与这一个 下行子帧的编号对应的一个上行子帧,并将与该索引号对应的 TPC命令值作为 这一个上行子帧的 TPC命令值; 在第一方面的第六种可能的实施方式中, 该 UE在这一个下行子帧内接收 该 eNB发送的该 DCI, 包括:
该 UE在这一个下行子帧内接收该 eNB发送的至少两个 DCI , 其中, 该至 少两个 DCI中的 DCI还包含上行索引号, 该至少两个 DCI中每个 DCI所包含 的上行索引号互不相同, 该至少两个 DCI中 DCI所包含的上行索引号与该至 少两个上行子帧中的上行子帧具有一一对应的关系;
贝 |J , 该 UE根据该 TPC命令的索引号, 确定该至少两个上行子帧中每个上 行子帧的 TPC命令值, 包括:
该 UE根据该至少两个 DCI中 DCI所包含的 TPC命令的索引号, 确定与 该 UE根据该 DCI所包含的上行索引号, 确定该至少两个上行子帧中与该 DCI所包含的上行索引号对应的上行子帧, 并将与该 DCI所包含的 TPC命令 的索引号对应的 TPC命令值作为与该 DCI所包含的上行索引号对应的上行子 帧的 TPC命令值。
第二方面, 本发明实施例一种 UE, 包括:
接收器, 用于在一个下行子帧内接收 eNB发送的 DCI, 该 DCI包含 TPC 命令的索引号, 这一个下行子帧对应至少两个上行子帧, 该至少两个上行子帧 位于至少两个子帧集合中;
处理器,用于根据该接收器接收到的 TPC命令的索引号,确定该至少两个 上行子帧中每个上行子帧的 TPC命令值, 并根据该每个上行子帧的 TPC命令 值, 确定该每个上行子帧内上行信号的发射功率;
发射器, 用于按照该处理器确定的该每个上行子帧内上行信号的发射功 率, 在该每个上行子帧内向该 eNB发射该上行信号。
在第二方面的第一种可能的实施方式中, 该处理器具体用于根据该接收器 接收到的 TPC命令的索引号,确定该至少两个上行子帧中每个上行子帧所属的 子帧集合的 TPC命令值, 将该每个上行子帧所属的子帧集合的 TPC命令值作 为该每个上行子帧的 TPC命令值。
结合第二方面的第一种可能的实施方式, 在第二方面的第二种可能的实施 方式中, 该处理器具体用于根据该接收器接收到的 TPC命令的索引号,确定该 至少两个子帧集合中一个子帧集合的 TPC命令值, 其中, 这一个子帧集合的 TPC命令值与该索引号对应,并将该至少两个子帧集合中其他子帧集合的 TPC 命令值置为预设值。
结合第二方面的第一种可能的实施方式, 在第二方面的第三种可能的实施 方式中, 该处理器具体用于根据该接收器接收到的 TPC命令的索引号,确定该 至少两个子帧集合中每个子帧集合的与该索引号对应的 TPC命令值。
结合第二方面的第一种可能的实施方式, 在第二方面的第四种可能的实施 方式中, 该接收器具体用于在这一个下行子帧内接收该 eNB 发送的至少两个 DCI, 其中, 该至少两个 DCI中每个 DCI所包含的 TPC命令的索引号互不相 同;
该 UE还包括存储器, 该存储器用于存储该至少两个 DCI中 DCI包含的 TPC命令的索引号与该至少两个子帧集合中子帧集合的 TPC命令之间的一一 对应关系, 其中, 该至少两个 DCI是该接收器接收的;
该处理器具体用于根据该存储器存储的——对应关系以及该至少两个 DCI 中每个 DCI所包含的 TPC命令的索引号, 确定该至少两个子帧集合中每个子 帧集合的 TPC命令值。
在第二方面的第五种可能的实施方式中, 该处理器具体用于根据该接收器 接收到的 TPC命令的索引号, 确定与该索引号对应的 TPC命令值, 根据这一 个下行子帧的编号, 确定该至少两个上行子帧中与这一个下行子帧的编号对应 的一个上行子帧,将与该索引号对应的 TPC命令值作为这一个上行子帧的 TPC 命令值, 并将该至少两个上行子帧中其他上行子帧的 TPC命令值置为预设值。 在第二方面的第六种可能的实施方式中, 该接收器具体用于在这一个下行 子帧内接收该 eNB发送的至少两个 DCI, 其中, 该至少两个 DCI中的 DCI还 包含上行索引号, 该至少两个 DCI中每个 DCI所包含的上行索引号互不相同; 该 UE还包括存储器,该存储器用于存储该至少两个 DCI中 DCI所包含的 上行索引号与该至少两个上行子帧中的上行子帧之间的——对应关系, 其中, 该至少两个 DCI是该接收器接收的;
该处理器具体用于根据该至少两个 DCI中 DCI所包含的 TPC命令的索引
DCI所包含的上行索引号以及该存储器存储的——对应关系, 确定该至少两个 上行子帧中与该 DCI所包含的上行索引号对应的上行子帧, 并将与该 DCI所
号对应的上行子帧的 TPC命令值。 本发明实施例提供的一种控制发射功率的方法及装置, eNB在下行子帧内 向 UE发送 DCI, 在该下行子帧对应至少两个上行子帧且该至少两个上行子帧 位于至少两个子帧集合中时, 该 UE根据该 DCI所包含的 TPC命令的索引号, 确定该至少两个上行子帧中每个上行子帧的 TPC命令值,根据该每个上行子帧 的 TPC命令值,确定该每个上行子帧内上行信号的发射功率, 并按照该每个上 行子帧内上行信号的发射功率, 向该 eNB发射上行信号, 相对于现有技术, 该 UE可以确定该至少两个上行子帧中每个上行子帧的 TPC命令值, 使得该 UE 可以确定该每个上行子帧内上行信号的发射功率, 从而保证了该 UE能够成功 地向该 eNB 发射该每个上行子帧内的上行信号, 并提升了上行信号的传输性 能, 提高了上行链路的系统容量。
附图说明
为了更清楚地说明本发明实施例的技术方案, 下面将对实施例或现有技术 描述中所需要使用的附图作筒单地介绍, 显而易见地, 下面描述中的附图仅仅 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 的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明实施例提供的一种控制发射功率的系统架构图;
图 2为本发明实施例提供的一种控制发射功率的方法流程图;
图 3为本发明实施例提供的一种控制发射功率的方法流程图;
图 4为本发明实施例提供的一种控制发射功率的方法流程图;
图 5为本发明实施例提供的一种控制发射功率的方法流程图;
图 6为本发明实施例提供的一种用户设备;
图 7为本发明实施例提供的一种用户设备;
图 8为本发明实施例提供的一种用户设备;
图 9为本发明实施例提供的一种用户设备;
图 10为本发明实施例提供的一种用户设备; 图 11为本发明实施例提供的一种用户设备;
图 12为本发明实施例提供的一种用户设备; 图 13为本发明实施例提供的一种用户设备。
具体实施方式
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, 所描述的实施例仅仅是本发明的一部分实施例, 而不 是全部实施例。 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 性劳动前提下获得的所有其他实施例, 都属于本发明保护的范围。
如图 1所示, 为本发明实施例提供的一种控制发射功率的系统架构图。 其 中, UE 101在一个下行子帧内接收 eNB 102发送的 DCI, 该 DCI包含 TPC命 令的索引号, 这一个下行子帧对应至少两个上行子帧, 该至少两个上行子帧位 于至少两个子帧集合中。 该 UE 101根据该 TPC命令的索引号, 确定该至少两 个上行子帧中每个上行子帧的 TPC命令值, 并根据该每个上行子帧的 TPC命 令值, 确定该每个上行子帧内上行信号的发射功率。 该 UE 101按照该每个上 行子帧内上行信号的发射功率, 在该每个上行子帧内向该 eNB 102发射上行信
其中, 需要说明的是, 本发明实施例用在 LTE TDD系统中。 该 UE 101可 以具体是手机、 平板电脑或其他支持 LTE TDD的智能终端设备。
需要说明的是,上行子帧的 TPC命令值是指用于调整该上行子帧内上行信 号的 TPC命令值。一个下行子帧对应至少两个上行子帧是指在这一个下行子帧 内被 UE 101接收的 TPC命令被用于调整至少两个上行子帧内的上行信号的发 射功率。
其中, DCI中包含有 TPC命令字段( Command Field ) , 这个字段共占 1 个或 2个比特。 这个字段的取值也称为 TPC命令的索引号, 如表 3所示, 为该 字段为 2个比特时的取值。 UE 101根据 TPC命令的索引号, 可以找到与该索 引号对应的 TPC命令值 , TPC命令值的单位为 dB。
表 3:
TPC命令的索引号
0
1
2
3
其中,需要说明的是,该 DCI的格式可以是 DCI格式 3/3A,也可以是 DCI 格式 0/4。 基于图 1所示的系统架构, 本发明实施例提供一种控制发射功率的方法, 如图 2所示, 包括: 步骤 201: UE在一个下行子帧内接收 eNB发送的 DCI, 其中, 该 DCI包 含 TPC命令的索引号,这一个下行子帧对应至少两个上行子帧, 该至少两个上 行子帧位于至少两个子帧集合中。 其中, 需要说明的是, 本发明实施例所提供的方法可以应用于 LTE TDD 系统中, 该 UE可以在这一个下行子帧内接收一个或至少两个 DCI。
步骤 202: 该 UE根据该 TPC命令的索引号, 确定该至少两个上行子帧中 每个上行子帧的 TPC命令值。
其中, 该 UE可以采用多种实施方式确定该至少两个上行子帧中每个上行 子帧的 TPC命令值。 作为本发明实施例中的第一种实施方式, 该 UE可以根据 该 TPC命令的索引号,确定该至少两个上行子帧中每个上行子帧所属的子帧集 合的 TPC命令值, 将每个上行子帧所属的子帧集合的 TPC命令值作为该每个 上行子帧的 TPC命令值。 需要说明的是, 子帧集合的 TPC命令值是指用于调 整该子帧集合内上行信号的 TPC命令值,该子帧集合内的上行信号包含该子帧 集合中每个上行子帧内的上行信号。
可选地,该 UE可以根据预定义的信息确定与该 TPC命令的索引号对应的 是哪个子帧集合, 也可以根据该 eNB发送的通知信令确定与该 TPC命令的索 引号对应的是哪个子帧集合。
除了上述第一种实施方式之外, 还可以采用第二种实施方式确定该至少两 个上行子帧中每个上行子帧的 TPC命令值。 在第二种实施方式中, 该 UE可以 根据该 TPC命令的索引号, 确定与该 TPC命令的索引号对应的 TPC命令值, 根据该下行子帧的编号, 确定该至少两个上行子帧中与该下行子帧的编号对应 的一个上行子帧, 并将与该 TPC命令的索引号对应的 TPC命令值作为这一个 上行子帧的 TPC命令值, 将该至少两个上行子帧中的其他上行子帧的 TPC命 令值置为预设值。需要说明的是,上行子帧的 TPC命令值是指用于调整该上行 子帧内上行信号的 TPC命令值。
可选地, 在第二种实施方式中, 该预设值可以是 0。
可选地, 该 UE可以根据预定义的信息确定与该下行子帧的编号对应的是 哪个上行子帧,也可以根据该 eNB发送的通知信令确定与该下行子帧的编号对 应的是哪个上行子帧。
除了上述两种实施方式之外, 还可以采用第三种实施方式确定该至少两个 上行子帧中每个上行子帧的 TPC命令值。 在第三种实施方式中, 该 UE在步骤 201中接收到至少两个 DCI,该至少两个 DCI中的 DCI还包含上行索引号(UL INDEX ) , 该至少两个 DCI中每个 DCI所包含的上行索引号互不相同, 该至 少两个 DCI中 DCI所包含的的上行索引号与该至少两个上行子帧中的上行子 帧具有——对应的关系; 该 UE根据该至少两个 DCI中 DCI所包含的 TPC命 根据该 DCI所包含的上行索引号, 确定该至少两个上行子帧中与该 DCI所包 含的上行索引号对应的上行子帧, 并将与该 DCI所包含的 TPC命令的索引号 对应的 TPC命令值作为与该 DCI所包含的上行索引号对应的上行子帧的 TPC 命令值。 步骤 203: 该 UE根据该每个上行子帧的 TPC命令值, 确定该每个上 行子帧内上行信号的发射功率。
步骤 204: 该 UE按照该每个上行子帧内上行信号的发射功率, 在该每个 上行子帧内向该 eNB发射上行信号。
其中, 需要说明的是, 该上行信号可以是 PUCCH上的信号, PUSCH上的 信号或者 SRS。
本发明实施例提供的一种控制发射功率的方法, eNB在下行子帧内向 UE 发送 DCI, 在该下行子帧对应至少两个上行子帧且该至少两个上行子帧位于至 少两个子帧集合中时,该 UE根据该 DCI所包含的 TPC命令的索引号,确定该 至少两个上行子帧中每个上行子帧的 TPC命令值,根据该每个上行子帧的 TPC 命令值, 确定该每个上行子帧内上行信号的发射功率, 并按照该每个上行子帧 内上行信号的发射功率, 向该 eNB发射上行信号, 相对于现有技术, 该 UE可 以确定该至少两个上行子帧中每个上行子帧的 TPC命令值,使得该 UE可以确 定该每个上行子帧内上行信号的发射功率, 从而保证了该 UE能够成功地向该 eNB发射该每个上行子帧内的上行信号, 并提升了上行信号的传输性能, 提高 了上行链路的系统容量。 其次, 该 UE可以先确定该至少两个上行子帧中每个 上行子帧所属的子帧集合的 TPC命令值,再根据每个上行子帧所属的子帧集合 的 TPC命令值确定该每个上行子帧的 TPC命令值, 从而使得该至少两个上行 子帧中位于同一子帧集合的上行子帧具有相同的 TPC命令值。 如图 3所示, 为本发明实施例提供的一种控制发射功率的方法流程图, 该 方法包括:
步骤 301: eNB在一个下行子帧内向 UE发送 DCI,其中,该 DCI包含 TPC 命令的索引号, 这一个下行子帧对应至少两个上行子帧。
其中, 需要说明的是, 本发明实施例提供的方法可以应用在 LTE TDD系 统中。 该 eNB可以在这一个下行子帧内向该 UE发送一个或至少两个 DCI。
步骤 302: 该 UE在这一个下行子帧内接收该 DCI, 确定这一个下行子帧 其中, 该 eNB可以预先通知该 UE各子帧集合的成员关系。 例如, 该 eNB 通知该 UE上行子帧 2,3,7和 8位于第一子帧集合,上行子帧 4和 9位于第二子 帧集合。 当这一个下行子帧对应上行子帧 4和 7时, 该 UE可以确定上行子帧 4位于第一子帧集合, 上行子帧 7位于第二子帧集合。 也就是说, 该 UE可以
个子帧集合时, 按现有技术进行处理即可, 在此不再赘述。
步骤 303: 该 UE根据该 TPC命令的索引号, 确定该至少两个上行子帧中 每个上行子帧所属的子帧集合的 TPC命令值。
其中, 该 UE可以采用多种实施方式确定该每个上行子帧所属的子帧集合 的 TPC命令值。作为本发明实施例的第一种实施方式, 该 UE可以根据该 TPC 命令的索引号,确定该至少两个子帧集合中一个子帧集合的 TPC命令值,这一 个子帧集合的 TPC命令值与该 TPC命令的索引号对应, 并将该至少两个子帧 集合中其他子帧集合的 TPC命令值置为预设值。
需要说明的是,该 UE可以预先存储 TPC命令的索引号与子帧集合的 TPC 命令值的对应关系。
可选地, 该 eNB可以通过信令预先通知该 UE该对应关系, 在接收到该对 应关系后, 该 UE存储该对应关系。
作为示例, 该 UE存储有如表 4所示的对应关系表, 其中, "-"表示当前子 帧集合的 TPC命令值为预设值。 例如, 当该 DCI所包含的 TPC命令的索引号 为 0时, 该 UE确定第一子帧集合的 TPC命令值为 -ldB, 而第二子帧集合的 TPC命令值为预设值。
可选地, 该预设值可以是由该 eNB向该 UE通知的。 该预设值可以为 0。 表 4:
Figure imgf000016_0001
需要说明的是, 在该第一种实施方式中, 该 UE在步骤 302中接收到 1个
DCI。
可选地, 该 UE可以采用以下方式确定该至少两个子帧集合中一个子帧集 合的 TPC命令值:
该 UE可以根据该 TPC命令的索引号,确定该至少两个子帧集合中与该索 引号对应的一个子帧集合,根据该 TPC命令的索引号,确定与该索引号对应的 TPC命令值, 并将与该索引号对应的 TPC命令值作为与该索引号对应的一个 子帧集合的 TPC的命令值。
除了上述第一种实施方式之外, 还可以采用第二种实施方式确定该每个上 行子帧所属的子帧集合的 TPC命令值。 在第二种实施方式中, 该 UE根据该 TPC命令的索引号, 确定该至少两个子帧集合中每个子帧集合的与该索引号对 应的 TPC命令值。
需要说明的是,该 UE可以预先存储 TPC命令的索引号与子帧集合的 TPC 命令的对应关系。 可选地, 该对应关系可以由该 eNB预先通知该 UE。
作为示例, 该 UE存储有如表 5所示的对应关系表。 例如, 当该 DCI所包 含的 TPC命令的索引号为 0时, 该 UE确定第一子帧集合的 TPC命令为 -ldB, 第二子帧集合的 TPC命令值为 -4dB。
表 5:
Figure imgf000017_0001
需要说明的是, 在该第二种实施方式中, 该 UE在步骤 302中接收到 1个
DCI。
除了上述两种实施方式之外, 还可以采用第三种实施方式确定该每个上行 子帧所属的子帧集合的 TPC命令值。 在第三种实施方式中, 该 UE在步骤 302 中接收到至少两个 DCI, 其中, 该至少两个 DCI中每个 DCI所包含的 TPC命 令的索引号互不相同, 该至少两个 DCI中 DCI所包含的 TPC命令的索引号与 该至少两个子帧集合中子帧集合的 TPC命令具有一一对应的关系,该 UE根据 该——对应的关系以及该至少两个 DCI中每个 DCI所包含的 TPC命令的索引 号, 确定该至少两个子帧集合中每个子帧集合的 TPC命令值。
需要说明的是,该 UE可以预先存储该至少两个 DCI中 DCI所包含的 TPC 命令的索引号与该至少两个子帧集合中子帧集合的 TPC命令之间的一一对应 关系。 可选地, 该——对应关系可以由该 eNB预先通知该 UE。
作为示例, 该 UE存储有如表 6所示的关系表。 该 UE在该下行子帧内接 收到两个 DCI , 分别为第一 DCI和第二 DCI , 第一 DCI所包含的 TPC命令的 索引号为 0, 第二 DCI所包含的 TPC命令的索引号为 1 , 从表 6中可知, 第一 子帧集合的 TPC命令值为 -ldB, 第二子帧集合的 TPC命令值为 ldB。
表 6:
Figure imgf000018_0001
步骤 304: 该 UE将该每个上行子帧所属的子帧集合的 TPC命令值作为该 每个上行子帧的 TPC命令值。
例如, 上行子帧 7和 8位于第一子帧集合, 上行子帧 4和 9位于第二子帧 集合,第一子帧集合的 TPC命令值为 -ldB,第二子帧集合的 TPC命令值为 -4dB , 那么上行子帧 7和 8的 TPC命令值均为 -ldB, 上行子帧 4和 9的 TPC命令值 均为 -4dB。
步骤 305: 该 UE根据该每个上行子帧的 TPC命令值, 确定该每个上行子 帧内上行信号的发射功率。
步骤 306: 该 UE按照该每个上行子帧内上行信号的发射功率, 在该每个 上行子帧内向该 eNB发射上行信号。
本发明实施例提供的一种控制发射功率的方法, eNB在下行子帧内向 UE 发送 DCI, 在该下行子帧对应至少两个上行子帧且该至少两个上行子帧位于至 少两个子帧集合中时,该 UE根据该 DCI所包含的 TPC命令的索引号,确定该 至少两个上行子帧中每个上行子帧的 TPC命令值,根据该每个上行子帧的 TPC 命令值, 确定该每个上行子帧内上行信号的发射功率, 并按照该每个上行子帧 内上行信号的发射功率, 向该 eNB发射上行信号, 相对于现有技术, 该 UE可 以确定该至少两个上行子帧中每个上行子帧的 TPC命令值,使得该 UE可以确 定该每个上行子帧内上行信号的发射功率, 从而保证了该 UE能够成功地向该 eNB发射该每个上行子帧内的上行信号, 并提升了上行信号的传输性能, 提高 了上行链路的系统容量。 其次, 该 UE可以先确定该至少两个上行子帧中每个 上行子帧所属的子帧集合的 TPC命令值,再根据每个上行子帧所属的子帧集合 的 TPC命令值确定该每个上行子帧的 TPC命令值, 从而使得该至少两个上行 子帧中位于同一子帧集合的上行子帧具有相同的 TPC命令值。 如图 4所示, 为本发明实施例提供的一种控制发射功率的方法流程图, 该 方法包括:
步骤 401: eNB在一个下行子帧内向 UE发送 DCI,其中,该 DCI包含 TPC 命令的索引号, 这一个下行子帧对应至少两个上行子帧。
需要说明的是, 本发明实施例提供的方法可以应用在 LTE TDD系统中。 该 eNB在这一下行子帧内向该 UE发送一个 DCI。
步骤 402: 该 UE在这一个下行子帧内接收该 DCI, 确定这一个下行子帧 关于步骤 402的详细描述可以参考步骤 302。
步骤 403: 该 UE根据该 TPC命令的索引号, 确定与该索引号对应的 TPC 命令值;
需要说明的是, 该 UE预先存储有 TPC命令的索引号与 TPC命令值的对 应关系。
作为示例, 该 UE存储有如表 7所示的关系表。 在该 UE接收到的 TPC命 令的索引号为 0时, 根据表 7可知, 该 TPC命令的索引号对应的 TPC命令值 为 -4dB。
表 7:
Figure imgf000019_0001
步骤 404: 该 UE根据这一个下行子帧的编号, 确定该至少两个上行子帧 中与这一个下行子帧的编号对应的一个上行子帧。
作为示例, 在上下行配比为 0的情况下, 根据下行子帧的编号 i-κ可以确 定与该下行子帧的编号对应的上行子帧 i ( i = 2,3, 4,7,8,9 ) , 其中, Κ的取值如 表 8所示。 根据表 8可知, 当一个下行子帧的编号为 6时, 与这个编号对应的 上行子帧为下一个无线帧在的上行子帧 2, 当一个下行子帧的编号为 0时, 与 编号 0对应的上行子帧为同一个无线帧中的上行子帧 4。
表 8:
Figure imgf000020_0001
需要说明的是, 表 8所示的对应关系可以由该 eNB通过信令通知该 UE。 步骤 405: 该 UE将与该索引号对应的 TPC命令值作为与这一个上行子帧 的 TPC命令值, 并将该至少两个上行子帧中其他上行子帧的 TPC命令值置为 预设值。
可选地, 该预设值可以为 0。
例如, 下行子帧 1对应同一个无线帧中的上行子帧 7和 8 , 上行子帧 7位 于第一子帧集合, 上行子帧 8位于第二子帧集合。 根据表 8可以确定, 与编号 1对应的上行子帧为上行子帧 7, 因此, 将与下行子帧 1内接收到的 TPC命令 的索引号对应的 TPC命令值作为上行子帧 7的 TPC命令值, 而将上行子帧 8 的 TPC命令值置为预设值。
步骤 406:该 UE根据该至少两个上行子帧中每个上行子帧的 TPC命令值, 确定该每个上行子帧内上行信号的发射功率。
步骤 407: 该 UE按照该每个上行子帧内上行信号的发射功率, 在该每个 上行子帧内向该 eNB发射上行信号。
本发明实施例提供的一种控制发射功率的方法, eNB在下行子帧内向 UE 发送 DCI, 在该下行子帧对应至少两个上行子帧且该至少两个上行子帧位于至 少两个子帧集合中时,该 UE根据该 DCI所包含的 TPC命令的索引号,确定该 至少两个上行子帧中每个上行子帧的 TPC命令值,根据该每个上行子帧的 TPC 命令值, 确定该每个上行子帧内上行信号的发射功率, 并按照该每个上行子帧 内上行信号的发射功率, 向该 eNB发射上行信号, 相对于现有技术, 该 UE可 以确定该至少两个上行子帧中每个上行子帧的 TPC命令值,使得该 UE可以确 定该每个上行子帧内上行信号的发射功率, 从而保证了该 UE能够成功地向该 eNB发射该每个上行子帧内的上行信号, 并提升了上行信号的传输性能, 提高 了上行链路的系统容量。 如图 5所示, 为本发明实施例提供的一种控制发射功率的方法流程图, 该 方法包括:
步骤 501: eNB在一个下行子帧内向 UE发送至少两个 DCI, 这一个下行 子帧对应至少两个上行子帧。
其中, 需要说明的是, 本发明实施例提供的方法可以应用在 LTE TDD系 统中。 该至少两个 DCI中的 DCI包含上行索引号和 TPC命令的索引号, 该至 少两个 DCI中每个 DCI所包含的上行索引号互不相同,该至少两个 DCI中 DCI 所包含的上行索引号与该至少两个上行子帧中的上行子帧具有——对应的关 系。
步骤 502: 该 UE在这一个下行子帧内接收该 DCI, 确定这一个下行子帧 关于步骤 502的详细描述可以参考步骤 302。
Figure imgf000021_0001
具体描述可以参考步骤 403及表 7, 再次不再赘述。
步骤 504: 该 UE根据该 DCI所包含的上行索引号, 确定该至少两个上行 子帧中与该 DCI所包含的上行索引号对应的上行子帧, 并将与该 DCI所包含 的 TPC命令的索引号对应的 TPC命令值作为与该 DCI所包含的上行索引号对 应的上行子帧的 TPC命令值。
其中, 需要说明的是, DCI中的上行索引号占 2个比特。 该 UE可以预先 存储 DCI所包含的上行索引号与上行子帧的编号的对应关系。可选地, 该 eNB 可以预先通过信令将该对应关系发送给该 UE。
作为示例, 该对应关系可以如表 9所示, 该 UE在下行子帧内共接收到两 个 DCI, 分别为第一 DCI和第二 DCI, 第一 DCI所包含的上行索引号为 1 , 第 二 DCI所包含的上行索引号为 2, 根据表 9可知, 第一 DCI所包含的上行索引 号对应上行子帧 7, 第二 DCI所包含的上行索引号对应上行子帧 8。 如果第一 DCI所包含的 TPC的索引号对应的 TPC命令值值为 -ldB, 第二 DCI所包含的 TPC的索引号对应的 TPC命令值为 -4dB ,那么上行子帧 7的 TPC命令值为 -ldB , 上行子帧 8的 TPC命令值为 -4dB。
表 9:
Figure imgf000022_0001
可选地, DCI中上行索引号的两个比特不会同时为 1。
步骤 505:该 UE根据该至少两个上行子帧中每个上行子帧的 TPC命令值, 确定该每个上行子帧内上行信号的发射功率;
步骤 506: 该 UE按照该每个上行子帧内上行信号的发射功率, 在该每个 上行子帧内向该 eNB发射该上行信号。
本发明实施例提供的一种控制发射功率的方法, eNB在下行子帧内向 UE 发送 DCI, 在该下行子帧对应至少两个上行子帧且该至少两个上行子帧位于至 少两个子帧集合中时,该 UE根据该 DCI所包含的 TPC命令的索引号,确定该 至少两个上行子帧中每个上行子帧的 TPC命令值,根据该每个上行子帧的 TPC 命令值, 确定该每个上行子帧内上行信号的发射功率, 并按照该每个上行子帧 内上行信号的发射功率, 向该 eNB发射上行信号, 相对于现有技术, 该 UE可 以确定该至少两个上行子帧中每个上行子帧的 TPC命令值,使得该 UE可以确 定该每个上行子帧内上行信号的发射功率, 从而保证了该 UE能够成功地向该 eNB发射该每个上行子帧内的上行信号, 并提升了上行信号的传输性能, 提高 了上行链路的系统容量。 如图 6所示, 为本发明实施例提供的一种 UE, 包括:
接收器 601 , 用于在一个下行子帧内接收 eNB发送的 DCI, 该 DCI包含 TPC命令的索引号, 这一个下行子帧对应至少两个上行子帧, 该至少两个上行 子帧位于至少两个子帧集合中。
处理器 602, 用于根据该接收器 601接收到的 TPC命令的索引号, 确定该 至少两个上行子帧中每个上行子帧的 TPC命令值, 并根据该每个上行子帧的 TPC命令值, 确定该每个上行子帧内上行信号的发射功率。
发射器 603, 用于按照该处理器 602确定的该每个上行子帧内上行信号的 发射功率, 在该每个上行子帧内向该 eNB发射该上行信号。
其中, 该处理器 602可以采用多种方式确定该至少两个上行子帧中每个上 行子帧的 TPC命令值。 作为本发明实施例提供的第一种实施方式, 该处理器 602具体用于根据该接收器 601接收到的 TPC命令的索引号, 确定该至少两个 上行子帧中每个上行子帧所属的子帧集合的 TPC命令值,将该每个上行子帧所 属的子帧集合的 TPC命令值作为该每个上行子帧的 TPC命令值。
除了上述第一种实施方式之外, 本发明实施例还可以采用第二种实施方式 确定该至少两个上行子帧中每个上行子帧的 TPC命令值。 在第二种实施方式 中,该处理器 602具体用于根据该接收器 601接收到的 TPC命令的索引号,确 定与该索引号对应的 TPC命令值,根据这一个下行子帧的编号,确定该至少两 个上行子帧中与这一个下行子帧的编号对应的一个上行子帧, 将与该索引号对 应的 TPC命令值作为这一个上行子帧的 TPC命令值, 并将该至少两个上行子 帧中其他上行子帧的 TPC命令值置为预设值。 除了上述两种实施方式之外, 本发明实施例还可以采用第三种实施方式 确定该至少两个上行子帧中每个上行子帧的 TPC命令值。 在第三种实施方式 中, 该 UE还包括存储器。 该接收器 601具体用于在这一个下行子帧内接收该 eNB发送的至少两个 DCI, 其中, 该至少两个 DCI中的 DCI还包含上行索引 号, 该至少两个 DCI中每个 DCI所包含的上行索引号互不相同;
该存储器用于存储该至少两个 DCI中 DCI所包含的上行索引号与该至少 两个上行子帧中的上行子帧之间的——对应关系, 其中, 该至少两个 DCI是该 接收器 601接收的;
该处理器 602具体用于根据该至少两个 DCI中 DCI所包含的 TPC命令的 据该 DCI所包含的上行索引号以及该存储器存储的——对应关系,确定该至少 两个上行子帧中与该 DCI所包含的上行索引号对应的上行子帧,并将与该 DCI 引号对应的上行子帧的 TPC命令值。
可选地, 该接收器 601可以是收发天线, 该处理器 602可以是各种类型的 处理芯片, 该接收器 603可以是收发天线, 该存储器可以是各种存储介质。 如图 7所示, 为本发明实施例提供的一种 UE, 包括:
接收器 701 , 用于在一个下行子帧内接收 eNB发送的 DCI, 该 DCI包含 TPC命令的索引号, 这一个下行子帧对应至少两个上行子帧, 该至少两个上行 子帧位于至少两个子帧集合中。
处理器 702, 用于根据该接收器 701接收到的 TPC命令的索引号, 确定该 至少两个上行子帧中每个上行子帧所属的子帧集合的 TPC命令值,将该每个上 行子帧所属的子帧集合的 TPC命令值作为该每个上行子帧的 TPC命令值。
该处理器 702还用于根据该每个上行子帧的 TPC命令值,确定该每个上行 子帧内上行信号的发射功率。 发射器 703, 用于按照该处理器 702确定的该每个上行子帧内上行信号的 发射功率, 在该每个上行子帧内向该 eNB发射该上行信号。
其中, 该处理器 702可以采用多种方式确定每个上行子帧所属的子帧集合 的 TPC命令值。作为本发明实施例提供的第一种实施方式,该处理器 702具体 用于根据该接收器 701接收到的 TPC命令的索引号,确定该至少两个子帧集合 中一个子帧集合的 TPC命令值, 其中, 这一个子帧集合的 TPC命令值与该索 引号对应, 并将该至少两个子帧集合中其他子帧集合的 TPC命令值置为预设 值。 可选地, 该预设值可以是由该 eNB发送给该 UE的。 该预设值可以为 0。
可选地,该接收器 701具体用于在这一个下行子帧内接收该 eNB发送的一 个 DCI。
需要说明的是, 在第一种实施方式中, 该处理器 702可以具体用于根据该 接收器 701接收到的 TPC命令的索引号,确定在该至少两个子帧集合中与该索 引号对应的这一个子帧集合,根据该 TPC命令的索引号,确定与该索引号对应 的 TPC命令值, 并将该与所述索引号对应的 TPC命令值作为这一个子帧集合 的 TPC命令值。
除了上述第一种实施方式之外, 本发明实施例还可以采用第二种实施方式 确定每个上行子帧所属的子帧集合的 TPC命令值。在第二种实施方式中,该处 理器 702具体用于根据该接收器 701接收到的 TPC命令的索引号,确定该至少 两个子帧集合中每个子帧集合的与该索引号对应的 TPC命令值。
需要说明的是, 在第二种实施方式中, 该接收器 701可以具体用于在这一 个下行子帧内接收该 eNB发送的一个 DCI。
除了上述两种实施方式外, 本发明实施例还可以采用第三种实施方式确定 每个上行子帧所属的子帧集合的 TPC命令值。 在第三种实施方式中, 该 UE还 包括存储器。该接收器 701具体用于在这一个下行子帧内接收该 eNB发送的至 少两个 DCI, 其中, 该至少两个 DCI中每个 DCI所包含的 TPC命令的索引号 互不相同;
该存储器用于存储该至少两个 DCI中 DCI包含的 TPC命令的索引号与该 至少两个子帧集合中子帧集合的 TPC命令之间的一一对应关系, 其中,该至少 两个 DCI是该接收器 701接收的;
该处理器 702可以具体用于根据该存储器存储的一一对应关系以及该至少 两个 DCI中每个 DCI所包含的 TPC命令的索引号, 确定该至少两个子帧集合 中每个子帧集合的 TPC命令值。
可选地, 该接收器 701可以是收发天线, 该处理器 702可以是各种类型的 处理芯片, 该接收器 703可以是收发天线, 该存储器可以是各种存储介质。 如图 8所示, 为本发明实施例提供的一种 UE, 包括:
接收器 801 , 用于在一个下行子帧内接收 eNB发送的 DCI, 该 DCI包含 TPC命令的索引号, 这一个下行子帧对应至少两个上行子帧, 该至少两个上行 子帧位于至少两个子帧集合中。
处理器 802, 用于根据该接收器 801接收到的 TPC命令的索引号, 确定与 该索引号对应的 TPC命令值,根据这一个下行子帧的编号,确定该至少两个上 行子帧中与这一个下行子帧的编号对应的一个上行子帧, 将与该索引号对应的 TPC命令值作为这一个上行子帧的 TPC命令值, 并将该至少两个上行子帧中 其他上行子帧的 TPC命令值置为预设值。
该处理器 802还用于根据该至少两个上行子帧中每个上行子帧的 TPC命令 值, 确定该每个上行子帧内上行信号的发射功率。
发射器 803, 用于按照该处理器 802确定的该每个上行子帧内上行信号的 发射功率, 在该每个上行子帧内向该 eNB发射该上行信号。
其中, 需要说明的是, 该预设值可以是由该 eNB发送给该 UE的。 该预设 值可以为 0。
需要说明的是,该接收器 801具体用于在这一个下行子帧内接收该 eNB发 送的一个 DCI。
可选地, 该接收器 801可以是收发天线, 该处理器 802可以是各种类型的 处理芯片, 该接收器 803可以是收发天线。 如图 9所示, 为本发明实施例提供的一种 UE, 包括:
接收器 901 ,用于在一个下行子帧内接收 eNB发送的至少两个 DCI,其中, 这一个下行子帧对应至少两个上行子帧, 该至少两个上行子帧位于至少两个子 帧集合中,该至少两个 DCI中的 DCI包含上行索引号以及 TPC命令的索引号, 该至少两个 DCI中每个 DCI所包含的上行索引号互不相同。
存储器 902,用于存储该至少两个 DCI中 DCI所包含的上行索引号与该至 少两个上行子帧中的上行子帧之间的——对应关系, 其中, 该至少两个 DCI 是所述接收器 901接收的。
处理器 903, 用于根据该至少两个 DCI中 DCI所包含的 TPC命令的索引
DCI所包含的上行索引号以及该存储器 902存储的——对应关系, 确定该至少 两个上行子帧中与该 DCI所包含的上行索引号对应的上行子帧,并将与该 DCI 索引号对应的上行子帧的 TPC命令值。
该处理器 903还用于根据该至少两个上行子帧中每个上行子帧的 TPC命令 值, 确定该每个上行子帧内上行信号的发射功率。
发射器 904, 用于按照该处理器 903确定的该每个上行子帧内上行信号的 发射功率, 在该每个上行子帧内向该 eNB发射该上行信号。
可选地, 该接收器 901可以是收发天线, 该存储器 902可以是各种存储介 质,该处理器 903可以是各种类型的处理芯片,该接收器 904可以是收发天线。 如图 10所示, 为本发明实施例提供的一种 UE, 包括: 接收单元 1001 , 用于在一个下行子帧内接收 eNB发送的 DCI, 该 DCI包 含 TPC命令的索引号,这一个下行子帧对应至少两个上行子帧,该至少两个上 行子帧位于至少两个子帧集合中。
处理单元 1002, 用于根据该接收单元 1001接收到的 TPC命令的索引号, 确定该至少两个上行子帧中每个上行子帧的 TPC命令值,并根据该每个上行子 帧的 TPC命令值, 确定该每个上行子帧内上行信号的发射功率。
发射单元 1003, 用于按照该处理单元 1002确定的该每个上行子帧内上行 信号的发射功率, 在该每个上行子帧内向该 eNB发射该上行信号。
其中, 该处理单元 1002可以采用多种方式确定该至少两个上行子帧中每 个上行子帧的 TPC命令值。作为本发明实施例提供的第一种实施方式,该处理 单元 1002具体用于根据该接收单元 1001接收到的 TPC命令的索引号,确定该 至少两个上行子帧中每个上行子帧所属的子帧集合的 TPC命令值,将该每个上 行子帧所属的子帧集合的 TPC命令值作为该每个上行子帧的 TPC命令值。
除了上述第一种实施方式之外, 本发明实施例还可以采用第二种实施方式 确定该至少两个上行子帧中每个上行子帧的 TPC命令值。 在第二种实施方式 中,该处理单元 1002具体用于根据该接收单元 1001接收到的 TPC命令的索引 号, 确定与该索引号对应的 TPC命令值, 根据这一个下行子帧的编号, 确定该 至少两个上行子帧中与这一个下行子帧的编号对应的一个上行子帧, 将与该索 引号对应的 TPC命令值作为这一个上行子帧的 TPC命令值, 并将该至少两个 上行子帧中其他上行子帧的 TPC命令值置为预设值。
除了上述两种实施方式之外, 本发明实施例还可以采用第三种实施方式 确定该至少两个上行子帧中每个上行子帧的 TPC命令值。 在第三种实施方式 中,该 UE还包括存储单元。该接收单元 1001具体用于在这一个下行子帧内接 收该 eNB发送的至少两个 DCI, 其中, 该至少两个 DCI中的 DCI还包含上行 索引号, 该至少两个 DCI中每个 DCI所包含的上行索引号互不相同; 该存储单元用于存储该至少两个 DCI中 DCI所包含的上行索引号与该至 少两个上行子帧中的上行子帧之间的——对应关系, 其中, 该至少两个 DCI 是该接收单元 1001接收的;
该处理单元 1002具体用于根据该至少两个 DCI中 DCI所包含的 TPC命令 根据该 DCI所包含的上行索引号以及该存储单元存储的——对应关系,确定该 至少两个上行子帧中与该 DCI所包含的上行索引号对应的上行子帧,并将与该 行索引号对应的上行子帧的 TPC命令值。 如图 11所示, 为本发明实施例提供的一种 UE, 包括:
接收单元 1101 , 用于在一个下行子帧内接收 eNB发送的 DCI, 该 DCI包 含 TPC命令的索引号,这一个下行子帧对应至少两个上行子帧,该至少两个上 行子帧位于至少两个子帧集合中。
处理单元 1102, 用于根据该接收单元 1101接收到的 TPC命令的索引号, 确定该至少两个上行子帧中每个上行子帧所属的子帧集合的 TPC命令值,将该 每个上行子帧所属的子帧集合的 TPC命令值作为该每个上行子帧的 TPC命令 值。
该处理单元 1102还用于根据该每个上行子帧的 TPC命令值, 确定该每个 上行子帧内上行信号的发射功率。
发射单元 1103, 用于按照该处理单元 1102确定的该每个上行子帧内上行 信号的发射功率, 在该每个上行子帧内向该 eNB发射该上行信号。
其中, 该处理单元 1102可以采用多种方式确定每个上行子帧所属的子帧 集合的 TPC命令值。 作为本发明实施例提供的第一种实施方式, 该处理单元 1102具体用于根据该接收单元 1101接收到的 TPC命令的索引号, 确定该至少 两个子帧集合中一个子帧集合的 TPC命令值, 其中, 这一个子帧集合的 TPC 命令值与该索引号对应,并将该至少两个子帧集合中其他子帧集合的 TPC命令 值置为预设值。 可选地, 该预设值可以是由该 eNB发送给该 UE的。 该预设值 可以为 0。
可选地, 该接收单元 1101具体用于在这一个下行子帧内接收该 eNB发送 的一个 DCI。
需要说明的是, 在第一种实施方式中, 该处理单元 1102可以具体用于根 据该接收单元 1101接收到的 TPC命令的索引号, 确定在该至少两个子帧集合 中与该索引号对应的这一个子帧集合,根据该 TPC命令的索引号,确定与该索 引号对应的 TPC命令值, 并将该与所述索引号对应的 TPC命令值作为这一个 子帧集合的 TPC命令值。
除了上述第一种实施方式之外, 本发明实施例还可以采用第二种实施方式 确定每个上行子帧所属的子帧集合的 TPC命令值。在第二种实施方式中,该处 理单元 1102具体用于根据该接收单元 1101接收到的 TPC命令的索引号,确定 该至少两个子帧集合中每个子帧集合的与该索引号对应的 TPC命令值。
需要说明的是, 在第二种实施方式中, 该接收单元 1101 可以具体用于在 这一个下行子帧内接收该 eNB发送的一个 DCI。
除了上述两种实施方式外, 本发明实施例还可以采用第三种实施方式确定 每个上行子帧所属的子帧集合的 TPC命令值。 在第三种实施方式中, 该 UE还 包括存储单元。 该接收单元 1101具体用于在这一个下行子帧内接收该 eNB发 送的至少两个 DCI, 其中, 该至少两个 DCI中每个 DCI所包含的 TPC命令的 索引号互不相同;
该存储单元用于存储该至少两个 DCI中 DCI包含的 TPC命令的索引号与 该至少两个子帧集合中子帧集合的 TPC命令之间的——对应关系, 其中,该至 少两个 DCI是该接收单元 1101接收的;
该处理单元 1102可以具体用于根据该存储单元存储的——对应关系以及 该至少两个 DCI中每个 DCI所包含的 TPC命令的索引号, 确定该至少两个子 帧集合中每个子帧集合的 TPC命令值。 如图 12所示, 为本发明实施例提供的一种 UE, 包括:
接收单元 1201 , 用于在一个下行子帧内接收 eNB发送的 DCI, 该 DCI包 含 TPC命令的索引号,这一个下行子帧对应至少两个上行子帧,该至少两个上 行子帧位于至少两个子帧集合中。
处理单元 1202, 用于根据该接收单元 1201接收到的 TPC命令的索引号, 确定与该索引号对应的 TPC命令值,根据这一个下行子帧的编号,确定该至少 两个上行子帧中与这一个下行子帧的编号对应的一个上行子帧, 将与该索引号 对应的 TPC命令值作为这一个上行子帧的 TPC命令值, 并将该至少两个上行 子帧中其他上行子帧的 TPC命令值置为预设值。
该处理单元 1202还用于根据该至少两个上行子帧中每个上行子帧的 TPC 命令值, 确定该每个上行子帧内上行信号的发射功率。
发射单元 1203, 用于按照该处理单元 1202确定的该每个上行子帧内上行 信号的发射功率, 在该每个上行子帧内向该 eNB发射该上行信号。
其中, 需要说明的是, 该预设值可以是由该 eNB发送给该 UE的。 该预设 值可以为 0。
需要说明的是,该接收单元 1201具体用于在这一个下行子帧内接收该 eNB 发送的一个 DCI。 如图 13所示, 为本发明实施例提供的一种 UE, 包括:
接收单元 1301 , 用于在一个下行子帧内接收 eNB发送的至少两个 DCI, 其中, 这一个下行子帧对应至少两个上行子帧, 该至少两个上行子帧位于至少 两个子帧集合中, 该至少两个 DCI中的 DCI包含上行索引号以及 TPC命令的 索引号, 该至少两个 DCI中每个 DCI所包含的上行索引号互不相同。 存储单元 1302, 用于存储该至少两个 DCI中 DCI所包含的上行索引号与 该至少两个上行子帧中的上行子帧之间的 对应关系, 其中, 该至少两个
DCI是所述接收单元 1301接收的。
处理单元 1303, 用于根据该至少两个 DCI中 DCI所包含的 TPC命令的索 该 DCI所包含的上行索引号以及该存储单元 1302存储的——对应关系, 确定 该至少两个上行子帧中与该 DCI所包含的上行索引号对应的上行子帧,并将与 该 DCI所包含的 TPC命令的索引号对 该处理单元 1303还用于根据该至少两个上行子帧中每个上行子帧的 TPC 命令值, 确定该每个上行子帧内上行信号的发射功率;
发射单元 1304, 用于按照该处理单元 1303确定的该每个上行子帧内上行 信号的发射功率, 在该每个上行子帧内向该 eNB发射该上行信号。 本发明实施例还提供一种控制发射功率的方法, 包括:
步骤 A: eNB在下行子帧内向 UE发送 DCI, 该 DCI包含 TPC命令, 该 下行子帧对应至少两个上行子帧, 该至少两个上行子帧位于至少两个子帧集合 中;
步骤 B: 该 eNB向该 UE发送通知信令, 以通知该 UE该 TPC命令用于该 至少两个上行子帧中一个上行子帧内上行信号的功率调整或用于该至少两个 子帧集合中一个子帧集合内上行信号的功率调整。
本发明实施例提供的一种控制发射功率的方法及装置, eNB在下行子帧内 向 UE发送 DCI, 在该下行子帧对应至少两个上行子帧且该至少两个上行子帧 位于至少两个子帧集合中时, 该 UE根据该 DCI所包含的 TPC命令的索引号, 确定该至少两个上行子帧中每个上行子帧的 TPC命令值,根据该每个上行子帧 的 TPC命令值,确定该每个上行子帧内上行信号的发射功率, 并按照该每个上 行子帧内上行信号的发射功率, 向该 eNB发射上行信号, 相对于现有技术, 该 UE可以确定该至少两个上行子帧中每个上行子帧的 TPC命令值, 使得该 UE 可以确定该每个上行子帧内上行信号的发射功率, 从而保证了该 UE能够成功 地向该 eNB 发射该每个上行子帧内的上行信号, 并提升了上行信号的传输性 能, 提高了上行链路的系统容量。 其次, 该 UE可以先确定该至少两个上行子 帧中每个上行子帧所属的子帧集合的 TPC命令值,再根据每个上行子帧所属的 子帧集合的 TPC命令值确定该每个上行子帧的 TPC命令值, 从而使得该至少 两个上行子帧中位于同一子帧集合的上行子帧具有相同的 TPC命令值。
通过以上的实施方式的描述可知, 所属领域的技术人员可以清楚地了解到 本发明可以用硬件实现, 或固件实现, 或它们的组合方式来实现。 当使用软件 实现时, 可以将上述功能存储在计算机可读介质中或作为计算机可读介质上的 一个或多个指令或代码进行传输。 计算机可读介质包括计算机存储介质和通信 介质, 其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何 介质。 存储介质可以是计算机能够存取的任何可用介质。 以此为例但不限于: 计算机可读介质可以包括 RAM、 ROM, EEPROM、 CD-ROM或其他光盘存储、 磁盘存储介质或者其他磁存储设备、 或者能够用于携带或存储具有指令或数据 结构形式的期望的程序代码并能够由计算机存取的任何其他介质。 此外。 任何 连接可以适当的成为计算机可读介质。 例如, 如果软件是使用同轴电缆、 光纤 光缆、 双绞线、 数字用户线(DSL )或者诸如红外线、 无线电和微波之类的无 线技术从网站、 服务器或者其他远程源传输的, 那么同轴电缆、 光纤光缆、 双 绞线、 DSL或者诸如红外线、 无线和微波之类的无线技术包括在所属介质的定 影中。 如本发明所使用的, 盘(Disk )和碟(disc ) 包括压缩光碟(CD ) 、 激 光碟、 光碟、 数字通用光碟(DVD ) 、 软盘和蓝光光碟, 其中盘通常磁性的复 制数据, 而碟则用激光来光学的复制数据。 上面的组合也应当包括在计算机可 读介质的保护范围之内。 需要说明的是, 本说明书中的各个实施例均采用递进的方式描述, 各个实 施例之间相同相似的部分互相参见即可, 每个实施例重点说明的都是与其他实 施例的不同之处。尤其,对于装置实施例而言, 由于其基本相似于方法实施例, 所以描述得比较筒单, 各单元具体功能的执行过程参见方法实施例的部分说明 即可。 以上所描述的装置实施例仅仅是示意性的, 其中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模块来实现本实施例方案的目 的。 本领域普通技术人员在不付出创造性劳动的情况下, 即可以理解并实施。
总之, 以上所述仅为本发明技术方案的较佳实施例而已, 并非用于限定本 发明的保护范围。凡在本发明的精神和原则之内, 所作的任何修改、等同替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1、 一种控制发射功率的方法, 其特征在于, 包括:
用户设备 UE在一个下行子帧内接收演进型基站 eNB发送的下行控制信息 DCI, 所述 DCI包含发射功率控制 TPC命令的索引号, 所述一个下行子帧对应 所述 UE根据所述 TPC命令的索引号,确定所述至少两个上行子帧中每个 上行子帧的 TPC命令值;
所述 UE根据所述每个上行子帧的 TPC命令值,确定所述每个上行子帧内 上行信号的发射功率;
所述 UE按照所述每个上行子帧内上行信号的发射功率, 在所述每个上行 子帧内向所述 eNB发射所述上行信号。
2、 如权利要求 1所述的方法, 其特征在于, 所述 UE根据所述 TPC命令 的索引号, 确定所述至少两个上行子帧中每个上行子帧的 TPC命令值, 包括: 所述 UE根据所述 TPC命令的索引号,确定所述至少两个上行子帧中每个 上行子帧所属的子帧集合的 TPC命令值;
所述 UE将所述每个上行子帧所属的子帧集合的 TPC命令值作为所述每个 上行子帧的 TPC命令值。
3、 如权利要求 2所述的方法, 其特征在于, 所述 UE根据所述 TPC命令 的索引号, 确定所述至少两个上行子帧中每个上行子帧所属的子帧集合的 TPC 命令值, 包括:
所述 UE根据所述 TPC命令的索引号,确定所述至少两个子帧集合中一个 子帧集合的 TPC命令值, 其中, 所述一个子帧集合的 TPC命令值与所述索引 号对应;
所述 UE将所述至少两个子帧集合中其他子帧集合的 TPC命令值置为预设 值。
4、 如权利要求 3所述的方法, 其特征在于, 所述 UE根据所述 TPC命令 的索引号, 确定所述至少两个子帧集合中一个子帧集合的 TPC命令值, 包括: 所述 UE根据所述 TPC命令的索引号,确定在所述至少两个子帧集合中与 所述索引号对应的所述一个子帧集合;
所述 UE根据所述 TPC命令的索引号, 确定与所述索引号对应的 TPC命 命令值。
5、 如权利要求 2所述的方法, 其特征在于, 所述 UE根据所述 TPC命令 的索引号, 确定所述至少两个上行子帧中每个上行子帧所属的子帧集合的 TPC 命令值, 包括:
所述 UE根据所述 TPC命令的索引号,确定所述至少两个子帧集合中每个 子帧集合的与所述索引号对应的 TPC命令值。
6、 如权利要求 2所述的方法, 其特征在于, 所述 UE在所述一个下行子帧 内接收所述 eNB发送的所述 DCI, 包括:
所述 UE在所述一个下行子帧内接收所述 eNB发送的至少两个 DCI,其中, 所述至少两个 DCI中每个 DCI所包含的 TPC命令的索引号互不相同, 所述至 少两个 DCI中 DCI包含的 TPC命令的索引号与所述至少两个子帧集合中子帧 集合的 TPC命令具有——对应的关系;
贝 |J , 所述 UE根据所述 TPC命令的索引号, 确定所述至少两个上行子帧中 每个上行子帧所属的子帧集合的 TPC命令值, 包括:
所述 UE 艮据所述——对应的关系以及所述至少两个 DCI中每个 DCI所包 含的 TPC命令的索引号, 确定所述至少两个子帧集合中每个子帧集合的 TPC 命令值。
7、 如权利要求 1所述的方法, 其特征在于, 所述 UE根据所述 TPC命令 的索引号, 确定所述至少两个上行子帧中每个上行子帧的 TPC命令值, 包括: 所述 UE根据所述 TPC命令的索引号, 确定与所述索引号对应的 TPC命 令值;
所述 UE根据所述一个下行子帧的编号, 确定所述至少两个上行子帧中与 所述一个下行子帧的编号对应的一个上行子帧, 并将与所述索引号对应的 TPC 命令值作为所述一个上行子帧的 TPC命令值;
Figure imgf000037_0001
8、 如权利要求 3或 4或 7所述的方法, 其特征在于, 所述预设值为 0。
9、 如权利要求 3至 5, 7中任一所述的方法, 其特征在于, 所述 UE在所 述一个下行子帧内接收所述 eNB发送的所述 DCI, 包括:
所述 UE在所述一个下行子帧内接收所述 eNB发送的一个所述 DCI。
10、 如权利要求 1所述的方法, 其特征在于, 所述 UE在所述一个下行子 帧内接收所述 eNB发送的所述 DCI, 包括:
所述 UE在所述一个下行子帧内接收所述 eNB发送的至少两个 DCI,其中, 所述至少两个 DCI中的 DCI还包含上行索引号,所述至少两个 DCI中每个 DCI 所包含的上行索引号互不相同, 所述至少两个 DCI中 DCI所包含的上行索引 贝 |J , 所述 UE根据所述 TPC命令的索引号, 确定所述至少两个上行子帧中 每个上行子帧的 TPC命令值, 包括:
所述 UE根据所述至少两个 DCI中 DCI所包含的 TPC命令的索引号, 确
-对
所述 UE根据所述 DCI所包含的上行索引号, 确定所述至少两个上行子帧 中与所述 DCI所包含的上行索引号对应的上行子帧, 并将与所述 DCI所包含 对应的上行子帧的 TPC命令值。
11、 一种用户设备 UE, 其特征在于, 包括:
接收器,用于在一个下行子帧内接收演进型基站 eNB发送的下行控制信息 DCI, 所述 DCI包含发射功率控制 TPC命令的索引号, 所述一个下行子帧对应 至少两个上行子帧, 所述至少两个上行子帧位于至少两个子帧集合中;
处理器,用于根据所述接收器接收到的 TPC命令的索引号,确定所述至少 两个上行子帧中每个上行子帧的 TPC命令值,并根据所述每个上行子帧的 TPC 命令值, 确定所述每个上行子帧内上行信号的发射功率;
发射器, 用于按照所述处理器确定的所述每个上行子帧内上行信号的发射 功率, 在所述每个上行子帧内向所述 eNB发射所述上行信号。
12、 如权利要求 11所述的 UE, 其特征在于, 所述处理器具体用于根据所 述接收器接收到的 TPC命令的索引号,确定所述至少两个上行子帧中每个上行 子帧所属的子帧集合的 TPC命令值, 将所述每个上行子帧所属的子帧集合的 TPC命令值作为所述每个上行子帧的 TPC命令值。
13、 如权利要求 12所述的 UE, 其特征在于, 所述处理器具体用于根据所 述接收器接收到的 TPC命令的索引号,确定所述至少两个子帧集合中一个子帧 集合的 TPC命令值, 其中, 所述一个子帧集合的 TPC命令值与所述索引号对 应, 并将所述至少两个子帧集合中其他子帧集合的 TPC命令值置为预设值。
14、 如权利要求 13所述的 UE, 其特征在于, 所述处理器具体用于根据所 述接收器接收到的 TPC命令的索引号,确定在所述至少两个子帧集合中与所述 索引号对应的所述一个子帧集合,根据所述 TPC命令的索引号,确定与所述索 引号对应的 TPC命令值, 并将所述与所述索引号对应的 TPC命令值作为所述 一个子帧集合的 TPC命令值。
15、 如权利要求 12所述的 UE, 其特征在于, 所述处理器具体用于根据所 述接收器接收到的 TPC命令的索引号,确定所述至少两个子帧集合中每个子帧 集合的与所述索引号对应的 TPC命令值。
16、 如权利要求 12所述的 UE, 其特征在于, 所述接收器具体用于在所述 一个下行子帧内接收所述 eNB发送的至少两个 DCI, 其中, 所述至少两个 DCI 中每个 DCI所包含的 TPC命令的索引号互不相同;
所述 UE还包括存储器, 所述存储器用于存储所述至少两个 DCI 中 DCI 包含的 TPC命令的索引号与所述至少两个子帧集合中子帧集合的 TPC命令之 间的——对应关系, 其中, 该至少两个 DCI是该接收器接收的;
所述处理器具体用于根据所述存储器存储的一一对应关系以及所述至少 两个 DCI中每个 DCI所包含的 TPC命令的索引号, 确定所述至少两个子帧集 合中每个子帧集合的 TPC命令值。
17、 如权利要求 11所述的 UE, 其特征在于, 所述处理器具体用于根据所 述接收器接收到的 TPC命令的索引号,确定与所述索引号对应的 TPC命令值, 根据所述一个下行子帧的编号, 确定所述至少两个上行子帧中与所述一个下行 子帧的编号对应的一个上行子帧,将与所述索引号对应的 TPC命令值作为所述 一个上行子帧的 TPC命令值, 并将所述至少两个上行子帧中其他上行子帧的 TPC命令值置为预设值。
18、 如权利要求 13或 14或 17所述的 UE, 其特征在于, 所述预设值为 0。
19、 如权利要求 13至 15,17中任一所述的 UE, 其特征在于, 所述接收器 具体用于在所述一个下行子帧内接收所述 eNB发送的一个所述 DCI。
20、 如权利要求 11所述的 UE, 其特征在于, 所述接收器具体用于在所述 一个下行子帧内接收所述 eNB发送的至少两个 DCI, 其中, 所述至少两个 DCI 中的 DCI还包含上行索引号, 所述至少两个 DCI中每个 DCI所包含的上行索 引号互不相同
所述 UE还包括存储器, 所述存储器用于存储所述至少两个 DCI 中 DCI 关系, 其中, 所述至少两个 DCI是该接收器接收的; 所述处理器具体用于根据所述至少两个 DCI中 DCI所包含的 TPC命令的 根据所述 DCI所包含的上行索引号以及所述存储器存储的——对应关系,确定 所述至少两个上行子帧中与所述 DCI所包含的上行索弓 I号对应的上行子帧,并
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