WO2017079870A1 - 转换传输时间间隔的方法和通信***、用户设备及基站 - Google Patents

转换传输时间间隔的方法和通信***、用户设备及基站 Download PDF

Info

Publication number
WO2017079870A1
WO2017079870A1 PCT/CN2015/094118 CN2015094118W WO2017079870A1 WO 2017079870 A1 WO2017079870 A1 WO 2017079870A1 CN 2015094118 W CN2015094118 W CN 2015094118W WO 2017079870 A1 WO2017079870 A1 WO 2017079870A1
Authority
WO
WIPO (PCT)
Prior art keywords
tti
enb
conversion
request message
feature parameter
Prior art date
Application number
PCT/CN2015/094118
Other languages
English (en)
French (fr)
Inventor
苗金华
权威
李秉肇
张戬
曾清海
杨晓东
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.)
Filing date
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 CN201580084356.0A priority Critical patent/CN108353324A/zh
Priority to PCT/CN2015/094118 priority patent/WO2017079870A1/zh
Priority to EP15908000.1A priority patent/EP3361776A4/en
Publication of WO2017079870A1 publication Critical patent/WO2017079870A1/zh
Priority to US15/969,679 priority patent/US20180249476A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0278—Traffic management, e.g. flow control or congestion control using buffer status reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/245—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/365—Power headroom reporting

Definitions

  • the embodiments of the present invention relate to a mobile communication technology, and in particular, to a method for converting a transmission time interval (TTI), a user equipment (User Equipment, UE for short), a base station (eNodeB, eNB for short), and a TTI communication. system.
  • TTI transmission time interval
  • UE User Equipment
  • eNodeB base station
  • eNodeB eNodeB
  • LTE Long Term Evolution
  • the service delay can be significantly shortened. For example, if the UE uses a longer TTI and the channel quality of the UE is better, if the TTI of the UE can be adjusted to be shorter, the service delay can be shortened; if the UE uses a shorter TTI and the UE is at the cell edge, If the TTI of the UE can be adjusted to be longer, the service delay can be shortened.
  • the TTI can only be set to a fixed length in the existing LTE transmission mechanism, a method of converting the TTI is needed to enable the TTI of the UE to be flexibly adjusted.
  • An embodiment of the present invention provides a method for converting a TTI, which is used to solve the defects in the prior art and implement flexible adjustment of the TTI of the UE.
  • Another aspect of the embodiments of the present invention provides a UE, an eNB, and a TTI-transferring communication system, which are used to solve the defects in the prior art and implement flexible adjustment of the TTI of the UE.
  • an embodiment of the present invention provides a method for converting a TTI, including:
  • the user equipment UE calculates a TTI conversion feature parameter
  • the UE sends a TTI conversion request. And requesting, the TTI conversion request message is used to indicate that the first TTI is converted to the second TTI;
  • the UE receives a TTI transition indication message that includes the indication information of the second TTI sent by the base station eNB, and uses the second TTI to perform transmission.
  • the TTI conversion characteristic parameter includes a power headroom reporting PHR, a path loss, a reference signal received power RSRP, a reference signal receiving quality RSRQ, and a PHR variation , path loss change, RSRP change or RSRQ change.
  • the TTI conversion feature parameter is the PHR
  • the calculating the TTI conversion feature parameter includes:
  • i denotes a subframe number
  • c denotes a carrier number
  • PH c denotes a power headroom report of the subframe on the carrier c
  • P CMAX,c denotes a transmission power of the UE on the carrier c
  • M PUSCH,c (i) represents the number of allocated frequency domain resources
  • P O_PUSCH,c represents the power that the eNB expects to receive
  • ⁇ c represents the path loss offset
  • PL c represents the path loss value on the current carrier
  • ⁇ TF,c (i) represents the modulation and coding strategy MCS offset on the subframe
  • f c (i) represents the transmission power control TPC command word notification power control parameter
  • the M PUSCH,c (i) and the ⁇ TF,c (i) are configured by the eNB by radio resource control RRC signaling, media access control MAC control unit or physical layer PHY signaling.
  • the transition condition is that the eNB performs RRC signaling, a MAC address Configured or PHY signaling;
  • the conversion condition is configured in a pre-configured manner.
  • the sending, by the UE, the TTI conversion request message includes:
  • the UE sends a media access control control unit to the eNB, so that the eNB triggers a normal buffer status report BSR, and the UE sends a BSR to the eNB, so that the eNB according to the BSR
  • the UE sends a scheduling request, and the UE according to the scheduling request Transmitting the TTI conversion request message to the eNB.
  • the method further includes: determining, by the UE, the second TTI according to the TTI conversion feature parameter; correspondingly, the TTI conversion request The message includes the indication information of the second TTI;
  • the TTI conversion request message includes the TTI conversion feature parameter; correspondingly, the second TTI is determined by the eNB according to the TTI conversion feature parameter.
  • an embodiment of the present invention provides a method for converting a transmission time interval TTI, including:
  • the base station eNB determines a TTI transition request message, where the TTI transition request message is used to indicate that the first TTI is converted to the second TTI;
  • the eNB sends a TTI transition indication message including the indication information of the second TTI to the user equipment UE, so that the UE transmits by using the second TTI.
  • the TTI conversion characteristic parameter includes a power headroom reporting PHR, a path loss, a reference signal received power RSRP, a reference signal receiving quality RSRQ, and a PHR variation , path loss change, RSRP change or RSRQ change.
  • the switching condition is that the eNB controls RRC signaling and media access by using radio resources. Controlling MAC signaling or physical layer PHY signaling configuration;
  • the conversion condition is configured in a pre-configured manner.
  • the determining, by the eNB, the TTI transition request message includes:
  • the eNB receives the media access control control unit sent by the UE, the eNB triggers a normal buffer status report BSR, the eNB receives a BSR sent by the UE, and the eNB sends the BSR to the UE according to the BSR.
  • Sending a scheduling request the eNB receives the TTI conversion request message sent by the UE according to the scheduling request.
  • the TTI conversion request message includes indication information of the second TTI, where the second TTI is determined by the UE according to the TTI conversion feature parameter;
  • the TTI conversion request message includes the TTI conversion feature parameter; correspondingly, after the eNB receives the TTI conversion request message sent by the UE, the method further includes: the eNB determining, according to the TTI conversion feature parameter, Second TTI.
  • an embodiment of the present invention provides a user equipment UE, including:
  • a processing unit configured to calculate a TTI conversion feature parameter
  • a sending unit configured to send a TTI conversion request message, where the TTI conversion request message is used to indicate that the first TTI is converted to the second TTI;
  • a receiving unit configured to receive a TTI transition indication message that is sent by the base station eNB and includes indication information of the second TTI;
  • the processing unit is further configured to control the UE to use the second TTI for transmission.
  • the TTI conversion characteristic parameter includes a power headroom reporting PHR, a path loss, a reference signal received power RSRP, a reference signal receiving quality RSRQ, and a PHR variation , path loss change, RSRP change or RSRQ change.
  • the TTI conversion feature parameter is the PHR
  • i denotes a subframe number
  • c denotes a carrier number
  • PH c denotes a power headroom report of the subframe on the carrier c
  • P CMAX,c denotes a transmission power of the UE on the carrier c
  • M PUSCH,c (i) represents the number of allocated frequency domain resources
  • P O_PUSCH,c represents the power that the eNB expects to receive
  • ⁇ c represents the path loss offset
  • PL c represents the path loss value on the current carrier
  • ⁇ TF,c (i) represents the modulation and coding strategy MCS offset on the subframe
  • f c (i) represents the transmission power control TPC command word notification power control parameter
  • the M PUSCH,c (i) and the ⁇ TF,c (i) are configured by the eNB by radio resource control RRC signaling, media access control MAC control unit or physical layer PHY signaling.
  • the transition condition is that the eNB is configured by using RRC signaling, MAC signaling, or PHY signaling;
  • the conversion condition is configured in a pre-configured manner.
  • the sending unit is specifically configured to pass The RRC signaling sends the TTI conversion request message to the eNB;
  • the sending unit is specifically configured to send a media access control control unit to the eNB, so that the eNB triggers a normal buffer status report BSR, where the sending unit is further configured to send a BSR to the eNB, so that The eNB sends a scheduling request to the UE according to the BSR, and the sending unit is further configured to send the TTI conversion request message to the eNB according to the scheduling request.
  • the UE further includes: a processing unit, configured to determine, according to the TTI conversion feature parameter, the second TTI; correspondingly, the TTI conversion request message includes indication information of the second TTI;
  • the TTI conversion request message includes the TTI conversion feature parameter; correspondingly, the second TTI is determined by the eNB according to the TTI conversion feature parameter.
  • an embodiment of the present invention provides a base station eNB, including:
  • a processing unit configured to determine a TTI conversion request message, where the TTI conversion request message is used to indicate that the first TTI is converted to a second TTI;
  • a sending unit configured to send, to the UE, a TTI transition indication message that includes indication information of the second TTI, to enable the UE to use the second TTI for transmission.
  • the TTI conversion characteristic parameter includes a power headroom reporting PHR, a path loss, a reference signal received power RSRP, a reference signal receiving quality RSRQ, and a PHR variation , path loss change, RSRP change or RSRQ change.
  • the switching condition is that the eNB controls RRC signaling and media access by using radio resources. Controlling MAC signaling or physical layer PHY signaling configuration;
  • the conversion condition is configured in a pre-configured manner.
  • the processing unit is specifically configured to receive the UE by using RRC signaling Transmitting the TTI conversion request message;
  • the processing unit is specifically configured to receive a media access control control unit that is sent by the UE, where the sending unit is further configured to trigger a normal buffer status report BSR, where the processing unit is further configured to receive the The BSR, the sending unit is further configured to send a scheduling request to the UE according to the BSR, where the processing unit is further configured to receive the TTI conversion request message that is sent by the UE according to the scheduling request.
  • the TTI conversion request message includes indication information of the second TTI, where the second TTI is determined by the UE according to the TTI conversion feature parameter;
  • the TTI conversion request message includes the TTI conversion feature parameter.
  • the eNB further includes: a processing unit, configured to determine the second TTI according to the TTI conversion feature parameter.
  • an embodiment of the present invention provides a communication system for converting a TTI, including:
  • the UE and the fourth aspect, the first to the fourth possible implementation manners of the fourth aspect, the third aspect, the first to the fourth possible implementation manners of the third aspect The eNB.
  • the UE calculates a TTI conversion feature parameter, and if the TTI conversion feature parameter satisfies a transition condition, the UE sends a TTI conversion request message, where the eNB Sending a TTI transition indication message to the UE, so that the UE can adjust the TTI length used for transmission according to the change of the channel quality, so that the service delay can be significantly shortened.
  • FIG. 1 is a flowchart of a method for converting a TTI according to Embodiment 1 of the present invention
  • FIG. 2 is a flowchart of a method for converting a TTI according to Embodiment 2 of the present invention
  • FIG. 3 is a flowchart of a method for converting a TTI according to Embodiment 3 of the present invention.
  • FIG. 4 is a flowchart of a method for converting a TTI according to Embodiment 4 of the present invention.
  • FIG. 5 is a schematic structural diagram of a UE according to Embodiment 5 of the present invention.
  • FIG. 6 is a schematic structural diagram of an eNB according to Embodiment 6 of the present invention.
  • FIG. 7 is a schematic structural diagram of a communication system for converting a TTI according to Embodiment 7 of the present invention.
  • FIG. 1 is a flowchart of a method for converting a TTI according to Embodiment 1 of the present invention. As shown in FIG. 1, the method includes the following steps.
  • Step 101 The UE calculates a TTI conversion feature parameter.
  • Step 102 If the TTI conversion feature parameter satisfies a transition condition, the UE sends a TTI transition request message.
  • the TTI transition request message is used to indicate that the first TTI is converted to the second TTI.
  • the first TTI is the currently used TTI.
  • Step 103 The UE receives a TTI conversion indication message that is sent by the eNB and includes indication information of the second TTI, and uses the second TTI to perform transmission.
  • the UE sends a TTI transition request message to the UE, so that the eNB sends a TTI transition indication message to the UE, so that the eNB sends a TTI transition request message to the UE.
  • the UE can adjust the TTI length of the transmission according to the change of the channel quality. If the channel quality of the UE is good, the TTI of the UE can be shortened. If the channel quality of the UE is deteriorated, for example, the UE is at the cell edge, Adjusting the TTI of the UE becomes longer, so that the service delay can be significantly shortened.
  • FIG. 2 is a flowchart of a method for converting a TTI according to Embodiment 2 of the present invention. As shown in Figure 2, the method includes:
  • Step 201 The eNB determines a TTI conversion request message.
  • the TTI transition request message is used to indicate that the first TTI is converted to the second TTI.
  • the first TTI is the currently used TTI.
  • Step 202 The eNB sends a TTI transition indication message including indication information of the second TTI to the UE.
  • the eNB sends a TTI transition indication message including the indication information of the second TTI to the UE, so that the UE transmits by using the second TTI.
  • the eNB receives a TTI transition request message sent by the UE if the calculated TTI transition feature parameter satisfies the transition condition, and the eNB sends a TTI transition indication message to the UE, so that the UE can be based on the channel quality.
  • the TTI of the transmission is adjusted in time, and if the channel quality of the UE is good, the TTI of the UE may be shortened. If the channel quality of the UE is deteriorated, for example, the UE is at the cell edge, the TTI of the UE may be adjusted to be longer. Significantly reduce business latency.
  • FIG. 3 is a flowchart of a method for converting a TTI according to Embodiment 3 of the present invention. As shown in FIG. 3, the method includes the following steps.
  • Step 301 The UE calculates a TTI conversion feature parameter.
  • the TTI conversion feature parameter may adopt a physical layer feature parameter.
  • a physical layer feature parameter any one of the following physical layer feature parameters may be used: Power Headroom Reporting (PHR), path loss, reference Reference Signal Receiving Power (RSRP), Reference Signal Receiving Quality (RSRQ), PHR variation, path loss variation, RSRP variation, or RSRQ variation.
  • PHR Power Headroom Reporting
  • RSRP reference Reference Signal Receiving Power
  • RSRQ Reference Signal Receiving Quality
  • the UE may also calculate the TTI conversion feature parameters by using any existing calculation method.
  • M n represents a measured value of the TTI conversion characteristic parameter acquired from the physical layer at the nth time
  • n represents the number of times
  • F n represents the calculated TTI conversion characteristic parameter, wherein F 0 is set to M 1 , a is Filter factor.
  • the TTI conversion characteristic parameter may be PHR, path loss, RSRP, RSRQ, PHR change amount, path loss change amount, RSRP change amount or RSRQ change amount.
  • Method 2 Calculate the TTI conversion characteristic parameter by using the method one time, and use the average value of the multiple calculation results as the final calculated TTI conversion characteristic parameter.
  • the TTI conversion characteristic parameter may be PHR, path loss, RSRP, RSRQ, PHR change amount, path loss change amount, RSRP change amount or RSRQ change amount.
  • i denotes a subframe number
  • c denotes a carrier number
  • PH c denotes a power headroom report of the subframe on the carrier c
  • P CMAX,c denotes a transmission power of the UE on the carrier c
  • M PUSCH,c (i) represents the number of allocated frequency domain resources
  • P O_PUSCH,c represents the power that the eNB expects to receive
  • ⁇ c represents the path loss offset
  • PL c represents the path loss value on the current carrier
  • ⁇ TF,c (i) represents the modulation and coding strategy MCS offset on the subframe
  • f c (i) represents the transmission power control TPC command word notification power control parameter
  • the M PUSCH,c (i) and the ⁇ TF,c (i) are controlled by the eNB by Radio Resource Control (RRC) signaling, and media access control (Media Access Control, Referred to as MAC) control unit or physical layer (Physical Layer, PHY for short) signaling configuration.
  • RRC Radio Resource Control
  • MAC Media Access Control
  • Physical Layer Physical Layer
  • Step 302 The UE determines whether the TTI conversion feature parameter satisfies the transition condition. If yes, step 303 is performed, and if no, return to step 301.
  • the transition condition may be configured by the eNB by using RRC signaling, MAC signaling, or PHY signaling; or the transition condition may also be configured in a pre-configured manner.
  • the conversion condition may be: calculating the obtained PHR, path loss, RSRP, or RSRQ lower than the first threshold; or calculating the obtained PHR change, path loss change, RSRP change, or RSRQ change Above the second threshold.
  • Step 303 The UE sends a TTI conversion request message to the eNB.
  • the TTI conversion request message is used to indicate that the first TTI is converted into a second TTI, where at least the TTI conversion feature parameter is included. Further, the TTI conversion request message may further include any one or more of the following information: length of the first TTI, The duration of the two TTIs, the duration of the second TTI, or the Modulation and Coding Scheme (MCS) of the UE.
  • MCS Modulation and Coding Scheme
  • the step of the UE transmitting the TTI conversion request message to the eNB may be specifically performed as follows: The UE sends the TTI conversion request message to the eNB by using RRC signaling. Alternatively, the step of the UE transmitting the TTI transition request message to the eNB may further include the following method: the UE sends a media access control control unit (MAC CE) to the eNB, and the eNB is configured according to the MAC CE. The Buffer Status Report (BSR) is triggered.
  • MAC CE media access control control unit
  • BSR Buffer Status Report
  • the MAC CE may be a plurality of MAC CEs. For example, a power headroom report (PHR) MAC CE may be used.
  • PHR power headroom report
  • Step 304 The eNB determines the second TTI according to the TTI conversion feature parameter.
  • the eNB determines the second TTI according to the TTI conversion feature parameter. Specifically, the eNB determines the current channel quality of the UE according to the TTI conversion feature parameter. If the current channel quality of the UE becomes better, the current TTI is shortened, which is shortened. The TTI is determined to be the second TTI, and if the current channel quality of the UE is degraded, the current TTI is extended, and the extended TTI is determined to be the second TTI.
  • method 1 may be adopted: multiple candidate TTIs are preset in the eNB, and the currently used first TTI is one of the multiple candidate TTIs, and the eNB is selected from multiple candidate TTIs according to the shortened or extended needs.
  • the method 2 may be used to: store two candidate TTIs in the eNB and the UE, that is, the first TTI and the second TTI, where the currently used TTI is the first TTI, and the second TTI is used.
  • the eNB determines to transition to the second TTI when the shortening or extension needs are met.
  • Step 305 The eNB sends a TTI transition indication message to the UE.
  • the TTI conversion indication message includes indication information of the second TTI. If the method is performed in step 304, the indication information of the second TTI is the length of the second TTI. If the method is used in step 304, the indication information of the second TTI is TTI. Instructions. Specifically, the eNB may send a TTI transition indication message to the UE by using RRC signaling, a MAC control unit, or PHY signaling.
  • Step 306 The UE uses the second TTI for transmission.
  • the eNB receives the calculated TTI conversion feature parameters of the UE.
  • the TTI transition request message is sent in the case of a transition condition, and the eNB determines the second TTI according to the TTI transition feature parameter and sends a TTI transition indication message to the UE, so that the UE can timely adjust the TTI used for the transmission according to the change of the channel quality. If the channel quality of the UE is good, the TTI of the UE may be shortened. If the channel quality of the UE is deteriorated, for example, the UE is at the cell edge, the TTI of the UE may be adjusted to be longer, so that the service delay can be significantly shortened.
  • the TTI conversion characteristic parameter includes a PHR, a path loss, an RSRP, an RSRQ, a PHR change amount, a path loss change amount, an RSRP change amount, or an RSRQ change amount, and the transition condition may be configured by the eNB or may be pre-configured, and the UE may be configured.
  • the TTI conversion request message can be sent to the eNB through the RRC signaling or the MAC control unit, so that the application method of the method for converting the TTI provided by the embodiment is more flexible, so that the implementation can be adopted in a plurality of communication systems.
  • the method of converting TTI provided by the example shortens the service delay.
  • FIG. 4 is a flowchart of a method for converting a TTI according to Embodiment 4 of the present invention. As shown in FIG. 4, the method includes the following steps.
  • Step 401 The UE calculates a TTI conversion feature parameter.
  • the specific method for the UE to calculate the TTI conversion feature parameter is the same as that of the step 301, and details are not described herein again.
  • Step 402 The UE determines whether the TTI conversion feature parameter satisfies the transition condition. If yes, step 403 is performed, and if no, the process returns to step 401.
  • step 302 the specific content of the configuration method and the conversion condition of the conversion condition is the same as that of step 302, and details are not described herein again.
  • Step 403 The UE determines the second TTI according to the TTI conversion feature parameter.
  • the UE determines the second TTI according to the TTI conversion feature parameter. Specifically, the UE determines the current channel quality of the UE according to the TTI conversion feature parameter. If the current channel quality of the UE becomes better, the current TTI is shortened, which is shortened. The TTI is determined to be the second TTI, and if the current channel quality of the UE is degraded, the current TTI is extended, and the extended TTI is determined to be the second TTI.
  • method 1 may be adopted: multiple candidate TTIs are preset in the UE, and the currently used first TTI is one of the multiple candidate TTIs, and the UE is selected from multiple candidate TTIs according to the shortening or extending needs. Select the second TTI.
  • the method 2 may be used to: store two candidate TTIs in the eNB and the UE, that is, the first TTI and the second TTI, where the currently used TTI is the first TTI, and the second TTI is used. Meet the need for shortening or lengthening When necessary, the UE determines to switch to the second TTI.
  • Step 404 The UE sends a TTI conversion request message to the eNB.
  • the TTI transition request message is used to indicate that the first TTI is converted into a second TTI, where at least the indication information of the second TTI is included. If the method is used in step 403, the indication information of the second TTI is the length of the second TTI. If the method is used in step 403, the indication information of the second TTI is TTI. Instructions.
  • the information that can be included in the TTI conversion request message is the same as that in the step 303, and details are not described herein again.
  • the method of the step of the UE transmitting the TTI transition request message to the eNB is the same as that in the step 303, and details are not described herein again.
  • Step 405 The eNB sends a TTI transition indication message to the UE.
  • the TTI conversion indication message includes indication information of the second TTI. If the method is used in step 403, the indication information of the second TTI is the length of the second TTI. If the method is used in step 405, the indication information of the second TTI is TTI. Instructions. The specific method for the eNB to send the TTI transition indication message to the UE is the same as that of the step 305, and details are not described herein again.
  • Step 406 The UE uses the second TTI for transmission.
  • the UE determines the second TTI and sends a TTI transition request message to the eNB, where the calculated TTI transition feature parameter satisfies the transition condition, and the eNB sends a TTI transition indication message to the UE, so that the UE can enable the UE to Adjusting the TTI used for the transmission according to the change of the channel quality. If the channel quality of the UE is good, the TTI of the UE may be shortened. If the channel quality of the UE is deteriorated, for example, the UE is at the cell edge, the TTI of the UE may be adjusted. Long, which can significantly shorten business delays.
  • the TTI conversion characteristic parameter includes a PHR, a path loss, an RSRP, an RSRQ, a PHR change amount, a path loss change amount, an RSRP change amount, or an RSRQ change amount, and the transition condition may be configured by the eNB or may be pre-configured, and the UE may be configured.
  • the TTI conversion request message can be sent to the eNB through the RRC signaling or the MAC control unit, so that the application method of the method for converting the TTI provided by the embodiment is more flexible, so that the implementation can be adopted in a plurality of communication systems.
  • the method of converting TTI provided by the example shortens the service delay.
  • FIG. 5 is a schematic structural diagram of a UE according to Embodiment 5 of the present invention. As shown in Figure 5, the UE to Less includes: processing unit 41, transmitting unit 42, and receiving unit 43.
  • the processing unit 41 is configured to calculate a TTI conversion feature parameter.
  • the sending unit 42 is configured to send a TTI conversion request message, where the TTI conversion request message is used to indicate that the first TTI is converted to the second TTI, if the TTI conversion feature parameter satisfies a transition condition.
  • the receiving unit 43 is configured to receive a TTI transition indication message that is sent by the eNB and includes indication information of the second TTI.
  • the processing unit 44 is further configured to control the UE to use the second TTI for transmission.
  • the sending unit 42 of the UE sends a TTI conversion request message if the TTI conversion feature parameter satisfies the transition condition, and the receiving unit 43 of the UE receives a TTI transition indication message that is sent by the eNB, including the indication information of the second TTI, so that the UE can adjust the TTI used for the transmission according to the change of the channel quality, and if the channel quality of the UE becomes better, the TTI of the UE can be adjusted to be shorter. If the channel quality of the UE is deteriorated, for example, the UE is at the cell edge, the TTI of the UE may be adjusted to be longer, so that the service delay can be significantly shortened.
  • the TTI conversion characteristic parameters include power headroom reporting PHR, path loss, reference signal received power RSRP, reference signal receiving quality RSRQ, PHR variation, path loss variation, RSRP variation, or RSRQ. The amount of change.
  • i denotes a subframe number
  • c denotes a carrier number
  • PH c denotes a power headroom report of the subframe on the carrier c
  • P CMAX,c denotes a transmission power of the UE on the carrier c
  • M PUSCH,c (i) represents the number of allocated frequency domain resources
  • P O_PUSCH,c represents the power that the eNB expects to receive
  • ⁇ c represents the path loss offset
  • PL c represents the path loss value on the current carrier
  • ⁇ TF,c (i) represents the modulation and coding strategy MCS offset on the subframe
  • f c (i) represents the transmission power control TPC command word notification power control parameter
  • the M PUSCH,c (i) and the ⁇ TF,c (i) are configured by the eNB by radio resource control RRC signaling, media access control MAC control unit or physical layer PHY signaling.
  • the conversion condition is that the eNB is configured by using RRC signaling, MAC signaling, or PHY signaling; or, the conversion condition is configured by a pre-configuration manner.
  • the sending unit 42 is specifically configured to send the TTI conversion request message to the eNB by using RRC signaling; or the sending unit 42 is specifically configured to send media access control control to the eNB.
  • a unit configured to enable the eNB to trigger a normal buffer status report BSR, where the sending unit 42 is further configured to send a BSR to the eNB, so that the eNB sends a scheduling request to the UE according to the BSR, where the sending The unit 42 is further configured to send the TTI conversion request message to the eNB according to the scheduling request.
  • the processing unit is further configured to determine the second TTI according to the TTI conversion feature parameter.
  • the TTI conversion request message includes indication information of the second TTI.
  • the TTI conversion request message includes the TTI conversion feature parameter; correspondingly, the second TTI is determined by the eNB according to the TTI conversion feature parameter.
  • the UE in the fifth embodiment of the present invention can be used to perform the TTI conversion method in the foregoing Embodiments 1 to 4 of the present invention.
  • Embodiments 1 to 4 of the present invention For the specific implementation manner, refer to the descriptions of Embodiment 1 to Embodiment 4 of the present invention.
  • FIG. 6 is a schematic structural diagram of an eNB according to Embodiment 6 of the present invention. As shown in FIG. 6, the eNB includes at least a processing unit 51 and a transmitting unit 52.
  • the processing unit 51 is configured to determine a TTI conversion request message, where the TTI conversion request message is used to indicate that the first TTI is converted to the second TTI.
  • the sending unit 52 is configured to send a TTI transition indication message including the indication information of the second TTI to the UE, so that the UE transmits by using the second TTI.
  • the processing unit 51 of the eNB determines a TTI transition request message, and the sending unit 52 of the eNB sends a TTI transition indication message to the UE, so that the UE can timely adjust the TTI used for transmission according to the change of the channel quality. If the channel quality of the UE is good, the TTI of the UE may be shortened. If the channel quality of the UE is deteriorated, for example, the UE is at the cell edge, the TTI of the UE may be adjusted to be longer, so that the service delay can be significantly shortened.
  • the TTI conversion feature parameters include PHR, path loss, RSRP, RSRQ, PHR change amount, path loss change amount, RSRP change amount, or RSRQ change amount.
  • the transition condition is that the eNB is configured by radio resource control RRC signaling, media access control MAC signaling, or physical layer PHY signaling; or, the conversion condition is pre-configured. The way it is configured.
  • the processing unit 51 is specifically configured to receive the TTI conversion request message that is sent by the UE by using the RRC signaling; or the processing unit 51 is specifically configured to receive the media sent by the UE.
  • An access control unit the sending unit 52 is further configured to trigger a normal buffer status report BSR, the processing unit 51 is further configured to receive a BSR sent by the UE, and the sending unit 52 is further configured to use the BSR according to the BSR.
  • Sending a scheduling request to the UE the processing unit 51 is further configured to receive the TTI conversion request message sent by the UE according to the scheduling request.
  • the TTI conversion request message includes indication information of the second TTI, where the second TTI is determined by the UE according to the TTI conversion feature parameter.
  • the eNB may further include: a processing unit, where the processing unit is connected to the processing unit 51 and the sending unit 52, configured to convert the feature according to the TTI The parameter determines the second TTI.
  • the eNB of the sixth embodiment of the present invention can be used to perform the TTI conversion method of the first embodiment to the fourth embodiment of the present invention.
  • the specific implementation manner refer to the description of the first embodiment to the fourth embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a communication system for converting a TTI according to Embodiment 7 of the present invention.
  • the communication system for converting the TTI includes at least a UE 71 and an eNB 72.
  • the configuration and function of the UE 71 are as shown in the fifth embodiment of the present invention, and the TTI conversion method of the first embodiment to the fourth embodiment of the present invention can be performed.
  • the configuration and function of the eNB 72 are as shown in the sixth embodiment of the present invention, and the TTI conversion method of the first embodiment to the fourth embodiment of the present invention can be performed.
  • the steps can be completed by the hardware associated with the program instructions.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Landscapes

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

Abstract

本发明实施例提供一种转换传输时间间隔的方法和通信***、用户设备及基站。用户设备UE计算TTI转换特征参数，若所述TTI转换特征参数满足转换条件，则所述UE发送TTI转换请求消息，基站eNB向所述UE发送包括第二TTI的指示信息的TTI转换指示消息，所述UE采用所述第二TTI进行传输。采用本发明实施例提供的转换TTI的方法、UE及eNB，能够根据UE信道质量的变化及时调整传输采用的TTI，显著缩短业务时延。

Description

转换传输时间间隔的方法和通信***、用户设备及基站 技术领域
本发明实施例涉及移动通信技术，尤其涉及一种转换传输时间间隔(Transmission Time Interval，简称TTI)的方法、用户设备(User Equipment，简称UE)、基站(eNodeB，简称eNB)和转换TTI的通信***。
背景技术
随着长期演进(Long Term Evolution，简称LTE)通信技术的普及，用户对于减小业务时延的需求越来越强烈。目前，芯片的处理能力不断增强，已经能够将TTI长度缩短为原来的1/2，甚至缩短为一个符号长度。
考虑到用户对于减小时延的需求以及最新的芯片处理能力，如果能够根据UE周围传输条件的变化灵活调整TTI的长度，则能够显著缩短业务时延。例如，在UE使用较长TTI且UE的信道质量较好的情况下，如果能调整UE的TTI变短，则能够缩短业务时延；在UE使用较短的TTI且UE处于小区边缘的情况下，如果能调整UE的TTI变长，则能够缩短业务时延。
由于在现有的LTE传输机制中，TTI只能设置为一种固定长度，因此需要一种转换TTI的方法，以使UE的TTI能够灵活调整。
发明内容
本发明实施例一方面提供一种转换TTI的方法，用以解决现有技术中的缺陷，实现灵活调整UE的TTI。
本发明实施例另一方面提供一种UE、eNB和转换TTI的通信***，用以解决现有技术中的缺陷，实现灵活调整UE的TTI。
第一方面，本发明实施例提供一种转换TTI的方法，包括：
用户设备UE计算TTI转换特征参数；
若所述TTI转换特征参数满足转换条件，则所述UE发送TTI转换请 求消息，所述TTI转换请求消息用于指示将第一TTI转换为第二TTI；
所述UE接收基站eNB发送的包括第二TTI的指示信息的TTI转换指示消息，采用所述第二TTI进行传输。
结合第一方面，在第一方面的第一种可能的实现方式中，所述TTI转换特征参数包括功率余量上报PHR、路损、参考信号接收功率RSRP、参考信号接收质量RSRQ、PHR变化量、路损变化量、RSRP变化量或RSRQ变化量。
结合第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述TTI转换特征参数为所述PHR，则所述计算TTI转换特征参数包括：
采用PHc(i)＝PCMAX,c(i)-{10log10(MPUSCH,c(i))+PO_PUSCH,c+αc·PLc+△TF,c(i)+fc(i)}计算所述PHR；
其中，i表示子帧序号，c表示载波序号，PHc(i)表示子帧在载波c上的功率余量上报，PCMAX,c(i)表示所述UE在载波c上的发射功率，MPUSCH,c(i)表示分配的频域资源个数，PO_PUSCH,c表示所述eNB期望接收的功率，αc表示路损偏移量，PLc表示当前载波上的路损值，△TF,c(i)表示子帧上的调制与编码策略MCS偏移量，fc(i)表示传输功率控制TPC命令字通知功控参数；
其中，所述MPUSCH,c(i)和所述△TF,c(i)是由所述eNB通过无线资源控制RRC信令、媒体接入控制MAC控制单元或物理层PHY信令配置的。
结合第一方面、第一方面的第一种或第二种可能的实现方式，在第一方面的第三种可能的实现方式中，所述转换条件是所述eNB通过RRC信令、MAC信令或PHY信令配置的；
或者，所述转换条件是通过预配置的方式配置的。
结合第一方面、第一方面的第一种至第三种任一种可能的实现方式，在第一方面的第四种可能的实现方式中，所述UE发送TTI转换请求消息包括：
所述UE通过RRC信令向eNB发送所述TTI转换请求消息；
或者，所述UE向所述eNB发送媒体接入控制控制单元，以使所述eNB触发常规缓存状态报告BSR，所述UE向所述eNB发送BSR，以使所述eNB根据所述BSR向所述UE发送调度请求，所述UE根据所述调度请求 向所述eNB发送所述TTI转换请求消息。
结合第一方面、第一方面的第一种至第四种任一种可能的实现方式，在第一方面的第五种可能的实现方式中，
若所述TTI转换特征参数满足转换条件，在所述UE发送TTI转换请求消息之前，还包括：所述UE根据所述TTI转换特征参数确定所述第二TTI；相应地，所述TTI转换请求消息中包括所述第二TTI的指示信息；
或者，所述TTI转换请求消息中包括所述TTI转换特征参数；相应地，所述第二TTI是由所述eNB根据所述TTI转换特征参数确定的。
第二方面，本发明实施例提供一种转换传输时间间隔TTI的方法，包括：
基站eNB确定TTI转换请求消息，其中，所述TTI转换请求消息用于指示将第一TTI转换为第二TTI；
所述eNB向用户设备UE发送包括第二TTI的指示信息的TTI转换指示消息，以使所述UE采用所述第二TTI进行传输。
结合第二方面，在第二方面的第一种可能的实现方式中，所述TTI转换特征参数包括功率余量上报PHR、路损、参考信号接收功率RSRP、参考信号接收质量RSRQ、PHR变化量、路损变化量、RSRP变化量或RSRQ变化量。
结合第二方面、第二方面的第一种可能的实现方式，在第二方面的第二种可能的实现方式中，所述转换条件是所述eNB通过无线资源控制RRC信令、媒体接入控制MAC信令或物理层PHY信令配置的；
或者，所述转换条件是通过预配置的方式配置的。
结合第二方面、第二方面的第一种或第二种可能的实现方式，在第二方面的第三种可能的实现方式中，所述eNB确定TTI转换请求消息包括：
所述eNB接收所述UE通过RRC信令发送的所述TTI转换请求消息；
或者，所述eNB接收所述UE发送的媒体接入控制控制单元，所述eNB触发常规缓存状态报告BSR，所述eNB接收所述UE发送的BSR，所述eNB根据所述BSR向所述UE发送调度请求，所述eNB接收所述UE根据所述调度请求发送的所述TTI转换请求消息。
结合第二方面、第二方面的第一种至第三种任一种可能的实现方式， 在第二方面的第四种可能的实现方式中，
所述TTI转换请求消息中包括所述第二TTI的指示信息，所述第二TTI是所述UE根据所述TTI转换特征参数确定的；
或者，所述TTI转换请求消息中包括所述TTI转换特征参数；相应地，所述eNB接收所述UE发送的TTI转换请求消息之后还包括：所述eNB根据所述TTI转换特征参数确定所述第二TTI。
第三方面，本发明实施例提供一种用户设备UE，包括：
处理单元，用于计算TTI转换特征参数；
发送单元，用于在所述TTI转换特征参数满足转换条件的情况下发送TTI转换请求消息，所述TTI转换请求消息用于指示将第一TTI转换为第二TTI；
接收单元，用于接收基站eNB发送的包括第二TTI的指示信息的TTI转换指示消息；
所述处理单元，还用于控制所述UE采用所述第二TTI进行传输。
结合第三方面，在第三方面的第一种可能的实现方式中，所述TTI转换特征参数包括功率余量上报PHR、路损、参考信号接收功率RSRP、参考信号接收质量RSRQ、PHR变化量、路损变化量、RSRP变化量或RSRQ变化量。
结合第三方面的第一种可能的实现方式，在第三方面的第二种可能的实现方式中，所述TTI转换特征参数为所述PHR，则所述处理单元具体用于采用PHc(i)＝PCMAX,c(i)-{10log10(MPUSCH,c(i))+PO_PUSCH,c+αc·PLc+△TF,c(i)+fc(i)}计算所述PHR；
其中，i表示子帧序号，c表示载波序号，PHc(i)表示子帧在载波c上的功率余量上报，PCMAX,c(i)表示所述UE在载波c上的发射功率，MPUSCH,c(i)表示分配的频域资源个数，PO_PUSCH,c表示所述eNB期望接收的功率，αc表示路损偏移量，PLc表示当前载波上的路损值，△TF,c(i)表示子帧上的调制与编码策略MCS偏移量，fc(i)表示传输功率控制TPC命令字通知功控参数；
其中，所述MPUSCH,c(i)和所述△TF,c(i)是由所述eNB通过无线资源控制RRC信令、媒体接入控制MAC控制单元或物理层PHY信令配置的。
结合第三方面、第三方面的第一种或第二种可能的实现方式，在第三 方面的第三种可能的实现方式中，所述转换条件是所述eNB通过RRC信令、MAC信令或PHY信令配置的；
或者，所述转换条件是通过预配置的方式配置的。
结合第三方面、第三方面的第一种至第三方面的第三种任一种可能的实现方式，在第三方面的第四种可能的实现方式中，所述发送单元具体用于通过RRC信令向eNB发送所述TTI转换请求消息；
或者，所述发送单元具体用于向所述eNB发送媒体接入控制控制单元，以使所述eNB触发常规缓存状态报告BSR，所述发送单元还具体用于向所述eNB发送BSR，以使所述eNB根据所述BSR向所述UE发送调度请求，所述发送单元还具体用于根据所述调度请求向所述eNB发送所述TTI转换请求消息。
结合第三方面、第三方面的第一种至第三方面的第四种任一种可能的实现方式，在第三方面的第五种可能的实现方式中，
所述UE还包括：处理单元，用于根据所述TTI转换特征参数确定所述第二TTI；相应地，所述TTI转换请求消息中包括所述第二TTI的指示信息；
或者，所述TTI转换请求消息中包括所述TTI转换特征参数；相应地，所述第二TTI是由所述eNB根据所述TTI转换特征参数确定的。
第四方面，本发明实施例提供一种基站eNB，包括：
处理单元，用于确定TTI转换请求消息，其中，所述TTI转换请求消息用于指示将第一TTI转换为第二TTI；
发送单元，用于向所述UE发送包括第二TTI的指示信息的TTI转换指示消息，以使所述UE采用所述第二TTI进行传输。
结合第四方面，在第四方面的第一种可能的实现方式中，所述TTI转换特征参数包括功率余量上报PHR、路损、参考信号接收功率RSRP、参考信号接收质量RSRQ、PHR变化量、路损变化量、RSRP变化量或RSRQ变化量。
结合第四方面、第四方面的第一种可能的实现方式，在第四方面的第二种可能的实现方式中，所述转换条件是所述eNB通过无线资源控制RRC信令、媒体接入控制MAC信令或物理层PHY信令配置的；
或者，所述转换条件是通过预配置的方式配置的。
结合第四方面、第四方面的第一种或第二种可能的实现方式，在第四方面的第三种可能的实现方式中，所述处理单元具体用于接收所述UE通过RRC信令发送的所述TTI转换请求消息；
或者，所述处理单元具体用于接收所述UE发送的媒体接入控制控制单元，所述发送单元还用于触发常规缓存状态报告BSR，所述处理单元还具体用于接收所述UE发送的BSR，所述发送单元还用于根据所述BSR向所述UE发送调度请求，所述处理单元还具体用于接收所述UE根据所述调度请求发送的所述TTI转换请求消息。
结合第四方面、第四方面的第一种至第三种任一种可能的实现方式，在第四方面的第四种可能的实现方式中，
所述TTI转换请求消息中包括所述第二TTI的指示信息，所述第二TTI是所述UE根据所述TTI转换特征参数确定的；
或者，所述TTI转换请求消息中包括所述TTI转换特征参数；相应地，所述eNB还包括：处理单元，用于根据所述TTI转换特征参数确定所述第二TTI。
第五方面，本发明实施例提供一种转换TTI的通信***，包括：
如第三方面、第三方面的第一种至第四种任一种可能的实现方式所述的UE和第四方面、第四方面的第一种至第四种任一种可能的实现方式所述的eNB。
本发明提供的转换TTI的方法和UE、eNB及通信***，通过UE计算TTI转换特征参数，在所述TTI转换特征参数满足转换条件的情况下，所述UE发送TTI转换请求消息，所述eNB向所述UE发送TTI转换指示消息，从而使所述UE能够根据信道质量的变化及时调整传输采用的TTI长度，从而能够显著缩短业务时延。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲， 在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例一的转换TTI的方法的流程图；
图2为本发明实施例二的转换TTI的方法的流程图；
图3为本发明实施例三的转换TTI的方法的流程图；
图4为本发明实施例四的转换TTI的方法的流程图；
图5为本发明实施例五的UE的结构示意图；
图6为本发明实施例六的eNB的结构示意图；
图7为本发明实施例七的转换TTI的通信***的结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
图1为本发明实施例一的转换TTI的方法的流程图。如图1所示，该方法包括如下步骤。
步骤101：UE计算TTI转换特征参数。
步骤102：若所述TTI转换特征参数满足转换条件，则所述UE发送TTI转换请求消息。
其中，所述TTI转换请求消息用于指示将第一TTI转换为第二TTI。第一TTI为当前使用的TTI。
步骤103：所述UE接收eNB发送的包括第二TTI的指示信息的TTI转换指示消息，采用所述第二TTI进行传输。
在本发明实施例一中，UE计算TTI转换特征参数后，在所述TTI转换特征参数满足转换条件的情况下发送TTI转换请求消息，以使eNB向所述UE发送TTI转换指示消息，从而使所述UE能够根据信道质量的变化及时调整传输采用的TTI长度，如果UE的信道质量变好，则可以调整UE的TTI变短，如果UE的信道质量变坏，例如UE处于小区边缘，则可以调整UE的TTI变长，从而能够显著缩短业务时延。
图2为本发明实施例二的转换TTI的方法的流程图。如图2所示，该方法包括：
步骤201：eNB确定TTI转换请求消息。
在本步骤中，所述TTI转换请求消息用于指示将第一TTI转换为第二TTI。第一TTI为当前使用的TTI。
步骤202：所述eNB向UE发送包括第二TTI的指示信息的TTI转换指示消息。
在本步骤中，eNB向所述UE发送包括第二TTI的指示信息的TTI转换指示消息，以使所述UE采用所述第二TTI进行传输。
在本发明实施例二中，eNB接收UE在计算的TTI转换特征参数满足转换条件的情况下发送的TTI转换请求消息，eNB向UE发送TTI转换指示消息，从而使所述UE能够根据信道质量的变化及时调整传输采用的TTI，如果UE的信道质量变好，则可以调整UE的TTI变短，如果UE的信道质量变坏，例如UE处于小区边缘，则可以调整UE的TTI变长，从而能够显著缩短业务时延。
图3为本发明实施例三的转换TTI的方法的流程图。如图3所示，该方法包括如下步骤。
步骤301：UE计算TTI转换特征参数。
在本步骤中，所述TTI转换特征参数可以采用物理层特征参数，例如，可以采用以下物理层特征参数中的任意一项：功率余量上报(Power Headroom Reporting，简称PHR)、路损、参考信号接收功率(Reference Signal Receiving Power，简称RSRP)、参考信号接收质量(Reference Signal Receiving Quality，简称RSRQ)、PHR变化量、路损变化量、RSRP变化量或RSRQ变化量。
具体的，在本发明实施例中，仅介绍UE计算TTI转换特征参数的三种具体方法，UE还可以采用现有的任何计算方法来计算TTI转换特征参数。
方法一：采用Fn＝(1-a)·Fn-1+a·Mn计算所述TTI转换特征参数。
其中，Mn表示第n次从物理层获取的所述TTI转换特征参数的测量值，n表示次数，Fn表示计算获得的所述TTI转换特征参数，其中F0设置为M1， a为滤波因子。在方法一中，TTI转换特征参数可以是PHR、路损、RSRP、RSRQ、PHR变化量、路损变化量、RSRP变化量或RSRQ变化量。
方法二：采用方法一多次计算所述TTI转换特征参数，采用多次计算结果的平均值作为最终计算获得的TTI转换特征参数。在方法二中，TTI转换特征参数可以是PHR、路损、RSRP、RSRQ、PHR变化量、路损变化量、RSRP变化量或RSRQ变化量。
方法三：在方法三中，TTI转换特征参数仅采用PHR，相应地计算方法为：采用PHc(i)＝PCMAX,c(i)-{10log10(MPUSCH,c(i))+PO_PUSCH,c+αc·PLc+△TF,c(i)+fc(i)}计算PHR。
其中，i表示子帧序号，c表示载波序号，PHc(i)表示子帧在载波c上的功率余量上报，PCMAX,c(i)表示所述UE在载波c上的发射功率，MPUSCH,c(i)表示分配的频域资源个数，PO_PUSCH,c表示所述eNB期望接收的功率，αc表示路损偏移量，PLc表示当前载波上的路损值，△TF,c(i)表示子帧上的调制与编码策略MCS偏移量，fc(i)表示传输功率控制TPC命令字通知功控参数；
其中，所述MPUSCH,c(i)和所述△TF,c(i)是由所述eNB通过无线资源控制(Radio Resource Control，简称RRC)信令、媒体接入控制(Media Access Control，简称MAC)控制单元或物理层(Physical Layer，简称PHY)信令配置的。
步骤302：UE判断TTI转换特征参数是否满足转换条件，若是，则执行步骤303，若否，则返回步骤301。
在本步骤中，所述转换条件可以是所述eNB通过RRC信令、MAC信令或PHY信令配置的；或者，所述转换条件也可以是通过预配置的方式配置的。
具体的，所述转换条件可以为：计算获得的PHR、路损、RSRP或RSRQ低于第一门限值；或者，计算获得的PHR变化量、路损变化量、RSRP变化量或RSRQ变化量高于第二门限值。
步骤303：UE向eNB发送TTI转换请求消息。
在本步骤中，所述TTI转换请求消息用于指示将第一TTI转换为第二TTI，其中至少包含所述TTI转换特征参数。进一步地，所述TTI转换请求消息中还可以包含以下信息中的任意一项或多项：第一TTI的长度、第 二TTI的持续时间、第二TTI的持续周期或UE的调制与编码策略(Modulation and Coding Scheme，简称MCS)。
具体地，所述UE向eNB发送TTI转换请求消息的步骤具体可以采用如下方法一：所述UE通过RRC信令向eNB发送所述TTI转换请求消息。或者，所述UE向eNB发送TTI转换请求消息的步骤具体还可以采用如下方法二：所述UE向所述eNB发送媒体接入控制控制单元(简称MAC CE)，所述eNB根据所述MAC CE触发常规缓存状态报告(Buffer Status Report，简称BSR)，在eNB触发BSR后，所述UE向所述eNB发送BSR，所述eNB根据所述BSR向所述UE发送调度请求，所述UE根据所述调度请求向所述eNB发送所述TTI转换请求消息。其中，上述MAC CE具体可以采用多种MAC CE，例如，可以采用功率余量上报(简称PHR)MAC CE。
步骤304：eNB根据TTI转换特征参数确定第二TTI。
在本步骤中，eNB根据TTI转换特征参数确定第二TTI，具体地，eNB根据TTI转换特征参数判断UE当前的信道质量，如果UE当前的信道质量变好，则缩短当前的TTI，将缩短后的TTI确定为第二TTI，如果UE当前的信道质量变差，则延长当前的TTI，将延长后的TTI确定为第二TTI。在具体实施过程中，可以采用方法一：在eNB中预先设置多个候选TTI，当前采用的第一TTI为上述多个候选TTI之一，eNB根据缩短或延长的需要，从多个候选TTI中选择第二TTI。或者，在具体实施过程中，还可以采用方法二：在eNB和UE中均存储2个候选TTI，即第一TTI和第二TTI，其中，当前采用的TTI为第一TTI，在第二TTI满足缩短或延长需要时，eNB确定转换到第二TTI。
步骤305：eNB向UE发送TTI转换指示消息。
在本步骤中，TTI转换指示消息中包括第二TTI的指示信息。其中，如果步骤304采用方法一，则在步骤305中，第二TTI的指示信息为第二TTI的长度；如果步骤304采用方法二，则在步骤305中，第二TTI的指示信息为TTI切换指示。具体地，eNB可以通过RRC信令、MAC控制单元或PHY信令向UE发送TTI转换指示消息。
步骤306：UE采用第二TTI进行传输。
在本发明实施例三中，eNB接收UE在计算的TTI转换特征参数满足 转换条件的情况下发送的TTI转换请求消息，eNB根据所述TTI转换特征参数确定第二TTI并向UE发送TTI转换指示消息，从而使所述UE能够根据信道质量的变化及时调整传输采用的TTI，如果UE的信道质量变好，则可以调整UE的TTI变短，如果UE的信道质量变坏，例如UE处于小区边缘，则可以调整UE的TTI变长，从而能够显著缩短业务时延。
并且，TTI转换特征参数包括PHR、路损、RSRP、RSRQ、PHR变化量、路损变化量、RSRP变化量或RSRQ变化量，转换条件可以是所述eNB配置的也可以是预配置的，UE可以通过RRC信令或MAC控制单元向eNB发送TTI转换请求消息，从而使本实施例提供的转换TTI的方法的应用方式更加灵活多样，从而能够在更多样的通信***中均可以采用本实施例提供的转换TTI的方法缩短业务时延。
图4为本发明实施例四的转换TTI的方法的流程图。如图4所示，该方法包括如下步骤。
步骤401：UE计算TTI转换特征参数。
在本步骤中，UE计算TTI转换特征参数的具体方法与步骤301的记载相同，在此不再赘述。
步骤402：UE判断TTI转换特征参数是否满足转换条件，若是，则执行步骤403，若否，则返回步骤401。
在本步骤中，转换条件的配置方法和转换条件的具体内容与步骤302的记载相同，在此不再赘述。
步骤403：UE根据所述TTI转换特征参数确定第二TTI。
在本步骤中，UE根据TTI转换特征参数确定第二TTI，具体地，UE根据TTI转换特征参数判断UE当前的信道质量，如果UE当前的信道质量变好，则缩短当前的TTI，将缩短后的TTI确定为第二TTI，如果UE当前的信道质量变差，则延长当前的TTI，将延长后的TTI确定为第二TTI。在具体实施过程中，可以采用方法一：在UE中预先设置多个候选TTI，当前采用的第一TTI为上述多个候选TTI之一，UE根据缩短或延长的需要，从多个候选TTI中选择第二TTI。或者，在具体实施过程中，还可以采用方法二：在eNB和UE中均存储2个候选TTI，即第一TTI和第二TTI，其中，当前采用的TTI为第一TTI，在第二TTI满足缩短或延长需 要时，UE确定转换到第二TTI。
步骤404：UE向eNB发送TTI转换请求消息。
在本步骤中，所述TTI转换请求消息用于指示将第一TTI转换为第二TTI，其中至少包括所述第二TTI的指示信息。其中，如果步骤403采用方法一，则在步骤404中，第二TTI的指示信息为第二TTI的长度；如果步骤403采用方法二，则在步骤404中，第二TTI的指示信息为TTI切换指示。
所述TTI转换请求消息中还可以包含的信息与步骤303中的记载相同，在此不再赘述。所述UE向eNB发送TTI转换请求消息的步骤具体采用的方法与步骤303中的记载相同，在此不再赘述。
步骤405：eNB向UE发送TTI转换指示消息。
在本步骤中，TTI转换指示消息中包括第二TTI的指示信息。其中，如果步骤403采用方法一，则在步骤405中，第二TTI的指示信息为第二TTI的长度；如果步骤403采用方法二，则在步骤405中，第二TTI的指示信息为TTI切换指示。eNB向UE发送TTI转换指示消息的具体方法与步骤305的记载相同，在此不再赘述。
步骤406：UE采用第二TTI进行传输。
在本发明实施例四中，UE在计算的TTI转换特征参数满足转换条件的情况下确定第二TTI并向eNB发送TTI转换请求消息，eNB向UE发送TTI转换指示消息，从而使所述UE能够根据信道质量的变化及时调整传输采用的TTI，如果UE的信道质量变好，则可以调整UE的TTI变短，如果UE的信道质量变坏，例如UE处于小区边缘，则可以调整UE的TTI变长，从而能够显著缩短业务时延。
并且，TTI转换特征参数包括PHR、路损、RSRP、RSRQ、PHR变化量、路损变化量、RSRP变化量或RSRQ变化量，转换条件可以是所述eNB配置的也可以是预配置的，UE可以通过RRC信令或MAC控制单元向eNB发送TTI转换请求消息，从而使本实施例提供的转换TTI的方法的应用方式更加灵活多样，从而能够在更多样的通信***中均可以采用本实施例提供的转换TTI的方法缩短业务时延。
图5为本发明实施例五的UE的结构示意图。如图5所示，该UE至 少包括：处理单元41、发送单元42和接收单元43。
其中，处理单元41用于计算TTI转换特征参数。发送单元42用于在所述TTI转换特征参数满足转换条件的情况下发送TTI转换请求消息，所述TTI转换请求消息用于指示将第一TTI转换为第二TTI。接收单元43用于接收eNB发送的包括第二TTI的指示信息的TTI转换指示消息。所述处理单元44还用于控制所述UE采用所述第二TTI进行传输。
在本发明实施例五中，UE的处理单元41计算TTI转换特征参数后，UE的发送单元42在所述TTI转换特征参数满足转换条件的情况下发送TTI转换请求消息，UE的接收单元43接收eNB发送的包括第二TTI的指示信息的TTI转换指示消息，从而使所述UE能够根据信道质量的变化及时调整传输采用的TTI，如果UE的信道质量变好，则可以调整UE的TTI变短，如果UE的信道质量变坏，例如UE处于小区边缘，则可以调整UE的TTI变长，从而能够显著缩短业务时延。
在上述技术方案的基础上，所述TTI转换特征参数包括功率余量上报PHR、路损、参考信号接收功率RSRP、参考信号接收质量RSRQ、PHR变化量、路损变化量、RSRP变化量或RSRQ变化量。
在上述技术方案的基础上，所述TTI转换特征参数为所述PHR，则所述处理单元41具体用于采用PHc(i)＝PCMAX,c(i)-{10log10(MPUSCH,c(i))+PO_PUSCH,c+αc·PLc+△TF,c(i)+fc(i)}计算所述PHR；
其中，i表示子帧序号，c表示载波序号，PHc(i)表示子帧在载波c上的功率余量上报，PCMAX,c(i)表示所述UE在载波c上的发射功率，MPUSCH,c(i)表示分配的频域资源个数，PO_PUSCH,c表示所述eNB期望接收的功率，αc表示路损偏移量，PLc表示当前载波上的路损值，△TF,c(i)表示子帧上的调制与编码策略MCS偏移量，fc(i)表示传输功率控制TPC命令字通知功控参数；
其中，所述MPUSCH,c(i)和所述△TF,c(i)是由所述eNB通过无线资源控制RRC信令、媒体接入控制MAC控制单元或物理层PHY信令配置的。
在上述技术方案的基础上，所述转换条件是所述eNB通过RRC信令、MAC信令或PHY信令配置的；或者，所述转换条件是通过预配置的方式配置的。
在上述技术方案的基础上，所述发送单元42具体用于通过RRC信令向eNB发送所述TTI转换请求消息；或者，所述发送单元42具体用于向所述eNB发送媒体接入控制控制单元，以使所述eNB触发常规缓存状态报告BSR，所述发送单元42还具体用于向所述eNB发送BSR，以使所述eNB根据所述BSR向所述UE发送调度请求，所述发送单元42还具体用于根据所述调度请求向所述eNB发送所述TTI转换请求消息。
在上述技术方案的基础上，所述处理单元还用于根据所述TTI转换特征参数确定所述第二TTI；相应地，所述TTI转换请求消息中包括所述第二TTI的指示信息。
或者，所述TTI转换请求消息中包括所述TTI转换特征参数；相应地，所述第二TTI是由所述eNB根据所述TTI转换特征参数确定的。
本发明实施例五的UE可以用于执行上述本发明实施例一至实施例四的TTI转换方法，其具体的执行方式参见本发明实施例一至实施例四的描述。
图6为本发明实施例六的eNB的结构示意图。如图6所示，该eNB至少包括：处理单元51和发送单元52。
其中，处理单元51用于确定TTI转换请求消息，其中所述TTI转换请求消息用于指示将第一TTI转换为第二TTI。发送单元52用于向UE发送包括第二TTI的指示信息的TTI转换指示消息，以使所述UE采用所述第二TTI进行传输。
在本发明实施例六中，eNB的处理单元51确定TTI转换请求消息，eNB的发送单元52向UE发送TTI转换指示消息，从而使所述UE能够根据信道质量的变化及时调整传输采用的TTI，如果UE的信道质量变好，则可以调整UE的TTI变短，如果UE的信道质量变坏，例如UE处于小区边缘，则可以调整UE的TTI变长，从而能够显著缩短业务时延。
在上述技术方案的基础上，所述TTI转换特征参数包括PHR、路损、RSRP、RSRQ、PHR变化量、路损变化量、RSRP变化量或RSRQ变化量。
在上述技术方案的基础上，所述转换条件是所述eNB通过无线资源控制RRC信令、媒体接入控制MAC信令或物理层PHY信令配置的；或者，所述转换条件是通过预配置的方式配置的。
在上述技术方案的基础上，所述处理单元51具体用于接收所述UE通过RRC信令发送的所述TTI转换请求消息；或者，所述处理单元51具体用于接收所述UE发送的媒体接入控制控制单元，所述发送单元52还用于触发常规缓存状态报告BSR，所述处理单元51还具体用于接收所述UE发送的BSR，所述发送单元52还用于根据所述BSR向所述UE发送调度请求，所述处理单元51还具体用于接收所述UE根据所述调度请求发送的所述TTI转换请求消息。
在上述技术方案的基础上，所述TTI转换请求消息中包括所述第二TTI的指示信息，所述第二TTI是所述UE根据所述TTI转换特征参数确定的。
或者，所述TTI转换请求消息中包括所述TTI转换特征参数；相应地，所述eNB还可以包括：处理单元，处理单元与处理单元51和发送单元52连接，用于根据所述TTI转换特征参数确定所述第二TTI。
本发明实施例六的eNB可以用于执行上述本发明实施例一至实施例四的TTI转换方法，其具体的执行方式参见本发明实施例一至实施例四的描述。
图7为本发明实施例七的转换TTI的通信***的结构示意图。如图7所示，该转换TTI的通信***至少包括：UE 71和eNB 72。
其中，UE 71的组成结构及功能如本发明实施例五所示，可以执行上述本发明实施例一至实施例四的TTI转换方法。eNB 72的组成结构及功能如本发明实施例六所示，可以执行上述本发明实施例一至实施例四的TTI转换方法。
需要说明的是：对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本发明并不受所描述的动作顺序的限制，因为依据本发明，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本发明所必须的。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
本领域普通技术人员可以理解：实现上述各方法实施例的全部或部分 步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可读取存储介质中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (23)

  1. 一种转换传输时间间隔TTI的方法，其特征在于，包括：
    用户设备UE计算TTI转换特征参数；
    若所述TTI转换特征参数满足转换条件，则所述UE发送TTI转换请求消息，所述TTI转换请求消息用于指示将第一TTI转换为第二TTI；
    所述UE接收基站eNB发送的包括第二TTI的指示信息的TTI转换指示消息，采用所述第二TTI进行传输。
  2. 根据权利要求1所述的方法，其特征在于，
    所述TTI转换特征参数包括功率余量上报PHR、路损、参考信号接收功率RSRP、参考信号接收质量RSRQ、PHR变化量、路损变化量、RSRP变化量或RSRQ变化量。
  3. 根据权利要求2所述的方法，其特征在于，所述TTI转换特征参数为所述PHR时，所述计算TTI转换特征参数包括：
    采用PHc(i)＝PCMAX,c(i)-{10log10(MPUSCH,c(i))+PO_PUSCH,c+αc·PLc+△TF,c(i)+fc(i)}计算所述PHR；
    其中，i表示子帧序号，c表示载波序号，PHc(i)表示子帧在载波c上的功率余量上报，PCMAX,c(i)表示所述UE在载波c上的发射功率，MPUSCH,c(i)表示分配的频域资源个数，PO_PUSCH,c表示所述eNB期望接收的功率，αc表示路损偏移量，PLc表示当前载波上的路损值，△TF,c(i)表示子帧上的调制与编码策略MCS偏移量，fc(i)表示传输功率控制TPC命令字通知功控参数；
    其中，所述MPUSCH,c(i)和所述△TF,c(i)是由所述eNB通过无线资源控制RRC信令、媒体接入控制MAC控制单元或物理层PHY信令配置的。
  4. 根据权利要求1至3任意一项所述的方法，其特征在于，
    所述转换条件是所述eNB通过RRC信令、MAC信令或PHY信令配置的；
    或者，所述转换条件是通过预配置的方式配置的。
  5. 根据权利要求1至4任意一项所述的方法，其特征在于，所述UE发送TTI转换请求消息包括：
    所述UE通过RRC信令向eNB发送所述TTI转换请求消息；
    或者，所述UE向所述eNB发送媒体接入控制控制单元，以使所述eNB 触发常规缓存状态报告BSR，所述UE向所述eNB发送BSR，以使所述eNB根据所述BSR向所述UE发送调度请求，所述UE根据所述调度请求向所述eNB发送所述TTI转换请求消息。
  6. 根据权利要求1至5任意一项所述的方法，其特征在于，
    若所述TTI转换特征参数满足转换条件，在所述UE发送TTI转换请求消息之前，还包括：所述UE根据所述TTI转换特征参数确定所述第二TTI；相应地，所述TTI转换请求消息中包括所述第二TTI的指示信息；
    或者，所述TTI转换请求消息中包括所述TTI转换特征参数；相应地，所述第二TTI是由所述eNB根据所述TTI转换特征参数确定的。
  7. 一种转换传输时间间隔TTI的方法，其特征在于，包括：
    基站eNB确定TTI转换请求消息，其中，所述TTI转换请求消息用于指示将第一TTI转换为第二TTI；
    所述eNB向用户设备UE发送包括第二TTI的指示信息的TTI转换指示消息，以使所述UE采用所述第二TTI进行传输。
  8. 根据权利要求7所述的方法，其特征在于，
    所述TTI转换特征参数包括功率余量上报PHR、路损、参考信号接收功率RSRP、参考信号接收质量RSRQ、PHR变化量、路损变化量、RSRP变化量或RSRQ变化量。
  9. 根据权利要求7或8所述的方法，其特征在于，
    所述转换条件是所述eNB通过无线资源控制RRC信令、媒体接入控制MAC信令或物理层PHY信令配置的；
    或者，所述转换条件是通过预配置的方式配置的。
  10. 根据权利要求7至9任意一项所述的方法，其特征在于，所述eNB确定TTI转换请求消息包括：
    所述eNB接收所述UE通过RRC信令发送的所述TTI转换请求消息；
    或者，所述eNB接收所述UE发送的媒体接入控制控制单元，所述eNB触发常规缓存状态报告BSR，所述eNB接收所述UE发送的BSR，所述eNB根据所述BSR向所述UE发送调度请求，所述eNB接收所述UE根据所述调度请求发送的所述TTI转换请求消息。
  11. 根据权利要求7至10任意一项所述的方法，其特征在于，
    所述TTI转换请求消息中包括所述第二TTI的指示信息，所述第二TTI是所述UE根据所述TTI转换特征参数确定的；
    或者，所述TTI转换请求消息中包括所述TTI转换特征参数；相应地，所述eNB接收所述UE发送的TTI转换请求消息之后还包括：所述eNB根据所述TTI转换特征参数确定所述第二TTI。
  12. 一种用户设备UE，其特征在于，包括：
    处理单元，用于计算TTI转换特征参数；
    发送单元，用于在所述TTI转换特征参数满足转换条件的情况下发送TTI转换请求消息，所述TTI转换请求消息用于指示将第一TTI转换为第二TTI；
    接收单元，用于接收基站eNB发送的包括第二TTI的指示信息的TTI转换指示消息；
    所述处理单元，还用于控制所述UE采用所述第二TTI进行传输。
  13. 根据权利要求12所述的UE，其特征在于，
    所述TTI转换特征参数包括功率余量上报PHR、路损、参考信号接收功率RSRP、参考信号接收质量RSRQ、PHR变化量、路损变化量、RSRP变化量或RSRQ变化量。
  14. 根据权利要求13所述的方法，其特征在于，所述TTI转换特征参数为所述PHR，则所述处理单元具体用于采用PHc(i)＝PCMAX,c(i)-{10log10(MPUSCH,c(i))+PO_PUSCH,c+αc·PLc+△TF,c(i)+fc(i)}计算所述PHR；
    其中，i表示子帧序号，c表示载波序号，PHc(i)表示子帧在载波c上的功率余量上报，PCMAX,c(i)表示所述UE在载波c上的发射功率，MPUSCH,c(i)表示分配的频域资源个数，PO_PUSCH,c表示所述eNB期望接收的功率，αc表示路损偏移量，PLc表示当前载波上的路损值，△TF,c(i)表示子帧上的调制与编码策略MCS偏移量，fc(i)表示传输功率控制TPC命令字通知功控参数；
    其中，所述MPUSCH,c(i)和所述△TF,c(i)是由所述eNB通过无线资源控制RRC信令、媒体接入控制MAC控制单元或物理层PHY信令配置的。
  15. 根据权利要求12至14任意一项所述的UE，其特征在于，
    所述转换条件是所述eNB通过RRC信令、MAC信令或PHY信令配 置的；
    或者，所述转换条件是通过预配置的方式配置的。
  16. 根据权利要求12至15任意一项所述的UE，其特征在于，
    所述发送单元具体用于通过RRC信令向eNB发送所述TTI转换请求消息；
    或者，所述发送单元具体用于向所述eNB发送媒体接入控制控制单元，以使所述eNB触发常规缓存状态报告BSR，所述发送单元还具体用于向所述eNB发送BSR，以使所述eNB根据所述BSR向所述UE发送调度请求，所述发送单元还具体用于根据所述调度请求向所述eNB发送所述TTI转换请求消息。
  17. 根据权利要求12至16任意一项所述的UE，其特征在于，
    所述处理单元还用于根据所述TTI转换特征参数确定所述第二TTI；相应地，所述TTI转换请求消息中包括所述第二TTI的指示信息；
    或者，所述TTI转换请求消息中包括所述TTI转换特征参数；相应地，所述第二TTI是由所述eNB根据所述TTI转换特征参数确定的。
  18. 一种基站eNB，其特征在于，包括：
    处理单元，用于确定TTI转换请求消息，其中，所述TTI转换请求消息用于指示将第一TTI转换为第二TTI；
    发送单元，用于向用户设备UE发送包括第二TTI的指示信息的TTI转换指示消息，以使所述UE采用所述第二TTI进行传输。
  19. 根据权利要求18所述的eNB，其特征在于，
    所述TTI转换特征参数包括功率余量上报PHR、路损、参考信号接收功率RSRP、参考信号接收质量RSRQ、PHR变化量、路损变化量、RSRP变化量或RSRQ变化量。
  20. 根据权利要求18或19所述的eNB，其特征在于，
    所述转换条件是所述eNB通过无线资源控制RRC信令、媒体接入控制MAC信令或物理层PHY信令配置的；
    或者，所述转换条件是通过预配置的方式配置的。
  21. 根据权利要求18至20任意一项所述的eNB，其特征在于，
    所述处理单元具体用于接收所述UE通过RRC信令发送的所述TTI 转换请求消息；
    或者，所述处理单元具体用于接收所述UE发送的媒体接入控制控制单元，所述发送单元还用于触发常规缓存状态报告BSR，所述处理单元还具体用于接收所述UE发送的BSR，所述发送单元还用于根据所述BSR向所述UE发送调度请求，所述处理单元还具体用于接收所述UE根据所述调度请求发送的所述TTI转换请求消息。
  22. 根据权利要求18至21任意一项所述的eNB，其特征在于，
    所述TTI转换请求消息中包括所述第二TTI的指示信息，所述第二TTI是所述UE根据所述TTI转换特征参数确定的；
    或者，所述TTI转换请求消息中包括所述TTI转换特征参数；相应地，所述eNB还包括：处理单元，用于根据所述TTI转换特征参数确定所述第二TTI。
  23. 一种转换传输时间间隔TTI的通信***，其特征在于，包括：
    如权利要求12至17任意一项所述的UE和如权利要求18至22任意一项所述的eNB。
PCT/CN2015/094118 2015-11-09 2015-11-09 转换传输时间间隔的方法和通信***、用户设备及基站 WO2017079870A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201580084356.0A CN108353324A (zh) 2015-11-09 2015-11-09 转换传输时间间隔的方法和通信***、用户设备及基站
PCT/CN2015/094118 WO2017079870A1 (zh) 2015-11-09 2015-11-09 转换传输时间间隔的方法和通信***、用户设备及基站
EP15908000.1A EP3361776A4 (en) 2015-11-09 2015-11-09 Transmission time interval switching method, communication system, user equipment and evolved node b
US15/969,679 US20180249476A1 (en) 2015-11-09 2018-05-02 Method for switching transmission time interval, user equipment, and evolved nodeb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/094118 WO2017079870A1 (zh) 2015-11-09 2015-11-09 转换传输时间间隔的方法和通信***、用户设备及基站

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/969,679 Continuation US20180249476A1 (en) 2015-11-09 2018-05-02 Method for switching transmission time interval, user equipment, and evolved nodeb

Publications (1)

Publication Number Publication Date
WO2017079870A1 true WO2017079870A1 (zh) 2017-05-18

Family

ID=58694550

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/094118 WO2017079870A1 (zh) 2015-11-09 2015-11-09 转换传输时间间隔的方法和通信***、用户设备及基站

Country Status (4)

Country Link
US (1) US20180249476A1 (zh)
EP (1) EP3361776A4 (zh)
CN (1) CN108353324A (zh)
WO (1) WO2017079870A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11917555B2 (en) * 2017-03-24 2024-02-27 Lg Electronics Inc. Power allocation method of terminal having multiple carriers configured, and terminal using same
US10554470B2 (en) * 2017-12-21 2020-02-04 Qualcomm Incorporated Control monitoring and power control for multi-link deployments
EP3855773B1 (en) * 2018-09-20 2023-08-09 Beijing Xiaomi Mobile Software Co., Ltd. Vehicle-to-everything synchronization method and device
US10873488B2 (en) * 2019-01-22 2020-12-22 Qualcomm Incorporated Intra-packet rate adaptation for high capacity
CN113556193B (zh) * 2021-06-15 2023-10-24 北京长焜科技有限公司 一种基于lte的上行路径损耗测试方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010124438A1 (zh) * 2009-04-27 2010-11-04 华为技术有限公司 切换方法和设备
WO2013189833A1 (en) * 2012-06-19 2013-12-27 Telefonaktiebolaget L M Ericsson (Publ) Adaptive precoding based on channel state information reliability
WO2014000205A1 (zh) * 2012-06-28 2014-01-03 华为技术有限公司 调整资源配置的方法、无线网络控制器和基站
WO2014166214A1 (zh) * 2013-04-12 2014-10-16 华为技术有限公司 一种tti切换方法、基站及用户设备

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8811335B2 (en) * 2007-04-20 2014-08-19 Qualcomm Incorporated Method and apparatus for dynamic adjustment of uplink transmission time
US8837335B2 (en) * 2010-06-24 2014-09-16 Telefonaktiebolaget L M Ericsson (Publ) Timeslot allocation method in a wireless TDD network
WO2012063368A1 (ja) * 2010-11-12 2012-05-18 富士通株式会社 基地局、移動局、制御方法、設定方法および通信システム
EP2509373A1 (en) * 2011-04-01 2012-10-10 Panasonic Corporation Efficient extended power headroom reporting for semi-persistent scheduling
US9762356B2 (en) * 2012-01-24 2017-09-12 Interdigital Patent Holdings, Inc. Systems and methods for improved uplink coverage
EP2693815A1 (en) * 2012-08-03 2014-02-05 Panasonic Corporation Power headroom reporting for in-device coexistence interference avoidance
CN109327822B (zh) * 2012-10-05 2022-10-25 交互数字专利控股公司 增强机器类型通信（mtc）设备覆盖的方法和装置
RU2608779C1 (ru) * 2013-01-30 2017-01-24 Телефонактиеболагет Л М Эрикссон (Пабл) Изменение конфигурации или состояния однонаправленного радиоканала
US9306725B2 (en) * 2013-03-13 2016-04-05 Samsung Electronics Co., Ltd. Channel state information for adaptively configured TDD communication systems
US10588036B2 (en) * 2013-04-03 2020-03-10 Interdigital Patent Holdings, Inc. Method and apparatus for controlling uplink transmission power based on accumulated transmit power control commands and corresponding uplink subframe sets
EP3136644A4 (en) * 2014-05-15 2017-05-10 Huawei Technologies Co., Ltd. Data transmission apparatuses and methods
WO2016040290A1 (en) * 2014-09-08 2016-03-17 Interdigital Patent Holdings, Inc. Systems and methods of operating with different transmission time interval (tti) durations
JP6394348B2 (ja) * 2014-12-11 2018-09-26 ソニー株式会社 通信制御装置、無線通信装置、通信制御方法、無線通信方法及びプログラム
US10805061B2 (en) * 2015-07-20 2020-10-13 Lg Electronics Inc. Method and apparatus for handling MBSFN subframes for short TTI in wireless communication system
US10743337B2 (en) * 2015-10-30 2020-08-11 Lg Electronics Inc. Method and apparatus for designing downlink control information for short TTI in wireless communication system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010124438A1 (zh) * 2009-04-27 2010-11-04 华为技术有限公司 切换方法和设备
WO2013189833A1 (en) * 2012-06-19 2013-12-27 Telefonaktiebolaget L M Ericsson (Publ) Adaptive precoding based on channel state information reliability
WO2014000205A1 (zh) * 2012-06-28 2014-01-03 华为技术有限公司 调整资源配置的方法、无线网络控制器和基站
WO2014166214A1 (zh) * 2013-04-12 2014-10-16 华为技术有限公司 一种tti切换方法、基站及用户设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3361776A4 *

Also Published As

Publication number Publication date
US20180249476A1 (en) 2018-08-30
EP3361776A1 (en) 2018-08-15
CN108353324A (zh) 2018-07-31
EP3361776A4 (en) 2018-10-03

Similar Documents

Publication Publication Date Title
US11743839B2 (en) Method and apparatus for transmitting power headroom information in a communication system
JP6953056B2 (ja) 端末送信電力量を效率的に報告する方法及び装置
JP5422567B2 (ja) 電力が制限された端末でのアップリンク電力制御
CN101567713B (zh) 时分双工***中上行传输功率的确定方法、***及装置
JP2022543895A (ja) 情報伝送方法およびデバイス、情報受信方法およびデバイス、通信ノード、および記憶媒体
JP7308858B2 (ja) 伝送モード決定方法及び機器
WO2017079870A1 (zh) 转换传输时间间隔的方法和通信***、用户设备及基站
WO2013155914A1 (zh) 功控信息通知及功控方法和设备
TW201318383A (zh) 射頻通訊系統中用以協調從單點傳輸器至單點接收器之至少一第一傳輸以及從多點傳輸器或至多點接收器之至少一第二傳輸之方法及其網路節點及行動台
US10841883B2 (en) Network node and method for UE specific power handling
JP5364048B2 (ja) 基地局装置及び方法
WO2017166982A1 (zh) 上行功率的控制方法、装置及存储介质
CN105323843A (zh) 一种功率余量的上报方法和一种宏基站
KR20220158098A (ko) 추가 srs에 대한 전력 헤드룸 보고
WO2014205747A1 (zh) 一种功率控制方法和设备
US9781689B2 (en) Mobile communication system
CN104796976A (zh) 一种终端接收增益自适应调整方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15908000

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2015908000

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE