WO2014110747A1 - 功率余量的报告方法和装置 - Google Patents

功率余量的报告方法和装置 Download PDF

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Publication number
WO2014110747A1
WO2014110747A1 PCT/CN2013/070579 CN2013070579W WO2014110747A1 WO 2014110747 A1 WO2014110747 A1 WO 2014110747A1 CN 2013070579 W CN2013070579 W CN 2013070579W WO 2014110747 A1 WO2014110747 A1 WO 2014110747A1
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WO
WIPO (PCT)
Prior art keywords
value
link
power headroom
base station
report message
Prior art date
Application number
PCT/CN2013/070579
Other languages
English (en)
French (fr)
Inventor
鲁艳玲
徐海博
Original Assignee
富士通株式会社
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 富士通株式会社 filed Critical 富士通株式会社
Priority to EP13871994.3A priority Critical patent/EP2947930A4/en
Priority to PCT/CN2013/070579 priority patent/WO2014110747A1/zh
Priority to CN201380066491.3A priority patent/CN104871611A/zh
Priority to JP2015552960A priority patent/JP2016509414A/ja
Priority to KR1020157021836A priority patent/KR20150106942A/ko
Publication of WO2014110747A1 publication Critical patent/WO2014110747A1/zh
Priority to US14/800,951 priority patent/US20150327187A1/en

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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
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/36TPC 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
    • H04W52/365Power headroom reporting
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/38TPC being performed in particular situations
    • H04W52/383TPC being performed in particular situations power control in peer-to-peer links
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling

Definitions

  • the present invention relates to a communication system, and more particularly to a new PHR (Power Headroom Report) in a D2D (Device to Device) communication mode.
  • PHR Power Headroom Report
  • D2D Device to Device
  • the user when the user (UE, User Equipment) communicates with the user of the opposite end, the user needs to transmit the data sent to the opposite end user to the base station regardless of the location of the opposite end user, and then The core network sends data to the peer user by the base station serving the peer user. Conversely, the data sent by the peer user is also sent through the path of the "base station-core network-base station". Received by the user through the air interface. In this way, there will be a situation where two users who exchange data with each other are located very close, such as under a neighboring base station or under the same base station, but because of the limitations of existing wireless communication methods, they communicate with each other.
  • the data still needs to be communicated through the "base station - core network - base station".
  • this communication method not only burdens the core network, but also consumes too much energy of the terminal, because in this case, the distance between the terminal and the base station is often More than the distance between the two terminals, so the terminal needs more energy to transmit data. Therefore, in this case, two users who are very close can adopt D2D communication, that is, directly transmit and receive data through the D2D link between the two terminals, as shown in Figs. 1 shows that the users at both ends of the D2D link are under the same base station, and FIG. 2 shows that the users at both ends of the D2D link are under different adjacent base stations.
  • the D2D link can be used as an independent frequency, or can be multiplexed with the cellular link in the uplink carrier of the LTE-A system, as shown in FIG.
  • the uplink carrier of LTE-A is F1
  • the downlink carrier is F2
  • the cellular link and the D2D link are time-division multiplexed on F1.
  • the D2D link and the cellular link are multiplexed on the LTE-A uplink carrier, and the scheduling of the D2D link is still controlled by the base station, which can reduce resource waste and reduce interference.
  • the base station since the resource scheduling of the uplink and downlink is controlled by the base station, in order to better schedule resources, the base station needs the user to report the channel condition of the link, for example: Report CQI (Channel Quality Indication) , channel quality indicator) and other information. In this way, the base station can assign a suitable modulation and coding level to the user.
  • the base station also controls the user's transmit power to better overcome the user's near-far effect and control. The user's transmit power should not exceed its maximum transmit power. Therefore, the user also reports the PH (P 0wer Header) value to the base station. This process is called PHR (Power Header Report).
  • the PHR also has reference significance for allocating uplink resources to the base station and selecting the modulation and coding level of the user on the uplink. It can be seen that the reference significance of the PHR to the base station scheduling resources is very obvious.
  • the PHR is still a very useful scheduling reference information for the base station, that is, the PH value of the D2D link needs to be reported to the base station by the user.
  • the PH value is included in the PH MAC CE (Power Headroom MAC Control element) and reported by the user to the base station, including the PH value of the user on each activated carrier. If there is only one carrier in the uplink, the PH value on the unique uplink carrier is included, which may be in the PH MAC CE format of FIG. 4 or FIG. 5 according to the system configuration. If there are multiple carriers on the uplink, the extended PH MAC CE format in Figure 5 can be used.
  • PH MAC CE Power Headroom MAC Control element
  • the PH value is a PH value corresponding to the unique uplink carrier, which is type 1, and is a true value.
  • R is a reserved bit.
  • Ci In the first byte of the control element, the ci position corresponds to the system-defined secondary cell (ie, each ⁇ - one corresponding to a secondary cell), and its value indicates the value of the cellular link of its corresponding secondary cell. does it exist. When the value is "1", it indicates that the corresponding secondary cell's threshold will appear; when its value is "0", it indicates that the corresponding secondary cell's threshold does not appear. At the same time, the enthalpy values of the cellular links of different secondary cells appear in the same order as the corresponding Cis appear. For the primary cell (PCell), its PH value must appear and appear first. The primary cell has two PH values: Type 1 and Type 2. The PH value of type 1 of the primary cell must appear.
  • the secondary cell will only have one type of PH value, which is the PH value of type 1. If there is only one carrier in the uplink, only the PH value of the cellular link of the primary cell will appear in the PH MAC CE.
  • PCMAX, C If present, indicates the relevant parameters used by the user side to calculate the PH value.
  • P bit Used to indicate whether the user applied power back due to power management. Assume that there is no power backlash due to application power management, corresponding to P CMAX . There will be different values. At this time, the user should set the P bit to 1.
  • the inventor has found that in the PHR process in the D2D communication mode, if the original PH MAC CE format of the LTE-A system is still used, there is only one link PH value corresponding to each carrier, that is, only The PH value of the cellular link. If the D2D link and the cellular link are dynamically multiplexed on the uplink carrier of the LTE-A system, the following problems occur:
  • the base station needs the user to simultaneously report the PH value (for example, a real value, a virtual value) of the D2D link and the cellular link in an uplink carrier in a PHR, the original format cannot be supported at this time;
  • the PH value for example, a real value, a virtual value
  • the base station requires the user to report only one PH value for each uplink carrier in one PHR, the PDCCH that allocates resources in the downlink may be lost in some cases (for example, the terminal does not receive correctly), causing some base stations to be difficult to predict.
  • the user should have sent data on the current TTI D2D link but actually did not send it, or should not send data on the D2D link, but actually sent the data on the D2D link.
  • the base station may not know whether the PH value reported by the user is a D2D link or a cellular link. Only if it is determined that the PH value is a certain link, and based on the V bits in the existing format, the base station can correctly determine the correct type of the PH value.
  • the periodic triggering can ensure that the base station does not receive the PHR for a long time
  • the event triggering ensures that the base station can obtain the PHR in time when some events that seriously affect the scheduling of the base station occur, without having to wait for the periodic trigger.
  • the PHR is obtained after the current period is completed.
  • the event trigger condition there are four cases:
  • the PHR prohibits the timer from timing out or has timed out.
  • the current TTI Transmission Time
  • the PHR is triggered: there is an uplink resource for transmission or a PUCCH (Physical Uplink Control CHannel) transmission in the current cell, and the uplink resource is used for transmission or PUCCH transmission from the last time.
  • the power callback of the current cell due to power management has changed and exceeded a certain threshold.
  • the trigger condition 1 mainly considers the path loss change of the serving cell used for the path loss reference.
  • the serving cell here is Refers to the cellular link.
  • the path loss reference is no longer a cellular link, but should be a reference signal in the D2D link, and its characteristics may be different from the path loss reference signal of the cellular link;
  • the length of the D2D link Compared with cellular links, it is obviously closer, and the link length varies by the same distance, which has a greater impact on link loss than the cellular link. Therefore, in order to reflect the change of D2D path loss, the trigger condition in trigger condition 1 is still used, which will not be suitable, and a new trigger condition needs to be defined.
  • Non-Patent Document 1 3GPP TS 36.331 VII.1.0 (2012-09) Radio Resource Control (C) specification. ( elease 11)
  • Non-Patent Document 2 3GPP TS 36.321 VI 1.0.0 (2012-09).
  • MAC Medium Access Control
  • An object of the present invention is to provide a method and a device for reporting a power headroom, so that the UE can report the power headroom of the D2D link to the base station accurately and timely.
  • a method for reporting a power headroom includes:
  • the user equipment When the user equipment meets the reporting condition of the PH, the user equipment sends a power headroom report message to the base station, where the information about the carrier corresponding to the multiplexed D2D link in the power headroom report message includes the PH value and the cell of the D2D link. a PH value of the link, where the PH value of the D2D link and the PH value of the cellular link are in the work.
  • the order in the rate margin report message is preset according to the system configuration.
  • a method for reporting a power headroom includes:
  • the user equipment When the user equipment meets the reporting condition of the PH, the user equipment sends a power headroom report message to the base station, where the information about the carrier corresponding to the multiplexed D2D link in the power headroom report message includes the PH value of the D2D link and the cell.
  • the PH value and the PH value indication information of the link where the PH value indication information is used to indicate whether the corresponding PH value is the PH value of the D2D link or the PH value of the cellular link.
  • a method for reporting a power headroom includes:
  • the user equipment When the user equipment meets the reporting condition of the PH, the user equipment sends a power headroom report message to the base station, where the related information of the carrier corresponding to the multiplexed D2D link in the power headroom report message includes the PH value or the cell of the D2D link.
  • the PH value and the PH value indication information of the link where the PH value indication information is used to indicate whether the corresponding PH value is the PH value of the D2D link or the PH value of the cellular link.
  • a power headroom value determining method is provided, where the method includes:
  • a power headroom report message sent by the user equipment where the related information of the carrier corresponding to the multiplexed D2D link in the power headroom report message includes a PH value of the D2D link and a PH value of the cellular link;
  • the base station determines whether all the received PH values are the PH value of the D2D link or the PH of the cellular link according to the sequence of the PH value of the D2D link configured by the system and the PH value of the cellular link in the power headroom report message. value.
  • a power headroom value determining method is provided, where the method includes:
  • the base station receives the power headroom report message sent by the user equipment, where the related information of the carrier corresponding to the multiplexed D2D link in the power headroom report message includes the PH value of the D2D link and the value and PH value of the cellular link. Indication information;
  • a power headroom value determining method wherein The law includes:
  • a power headroom report message sent by the user equipment, where the related information of the carrier corresponding to the multiplexed D2D link in the power headroom report message includes a PH value of the D2D link or a PH value and a PH of the cellular link.
  • Value indication information
  • the base station determines, according to the PH value indication information, whether the corresponding PH value is the PH value of the D2D link or the PH value of the cellular link.
  • a user equipment includes: a sending unit, when the reporting condition of the PH is met, sending a power headroom report message to the base station, where the power is
  • the information related to the carrier multiplexed with the D2D link in the quantity report message includes the PH value of the D2D link and the PH value of the cellular link, where the PH value of the D2D link and the cellular link
  • the order of the PH values in the power headroom report message is preset according to the system configuration.
  • a user equipment includes: a sending unit, when the reporting condition of the PH is met, sending a power headroom report message to the base station, where the power is
  • the information about the carrier corresponding to the multiplexed D2D link in the quantity report message includes the PH value of the D2D link, the PH value of the cellular link, and the PH value indication information, where the PH value indication information is used to indicate The corresponding PH value is the PH value of the D2D link or the PH value of the cellular link.
  • a user equipment includes: a sending unit, when the reporting condition of the PH is met, sending a power headroom report message to the base station, where the power is
  • the information related to the carrier multiplexed with the D2D link in the quantity report message includes the PH value of the D2D link or the PH value and PH value indication information of the cellular link, where the PH value indication information is used to indicate The corresponding PH value is the PH value of the D2D link or the PH value of the cellular link.
  • a base station includes: a receiving unit, which receives a power headroom report message sent by a user equipment, where the power headroom report message corresponds to multiplexing
  • the information about the carrier of the D2D link includes the PH value of the D2D link and the PH value of the cellular link.
  • Determining a unit according to the sequence of the PH value of the D2D link configured by the system and the PH value of the cellular link in the power headroom report message, determining whether all the received PH values are PH values of the D2D link or cellular links PH value.
  • a base station includes: a receiving unit, which receives a power headroom report message sent by the user equipment, where the related information of the carrier corresponding to the multiplexed D2D link in the power headroom report message includes the PH value of the D2D link and the PH of the cellular link Value and PH value indication information;
  • Determining a unit determining, according to the PH value indication information, whether the corresponding PH value is a PH value of the D2D link or a PH value of the cellular link, and determining whether all PH values received are PH values of the D2D link or a cellular chain The PH value of the road.
  • a base station includes: a receiving unit, which receives a power headroom report message sent by a user equipment, where the power headroom report message corresponds to a complex
  • the information about the carrier using the D2D link includes the PH value of the D2D link or the PH value and PH value indication information of the cellular link;
  • a determining unit configured to determine, according to the PH value indication information, whether the corresponding PH value is a PH value of the D2D link or a PH value of the cellular link.
  • a communication system includes the user equipment of the seventh aspect and the base station of the tenth aspect, or the communication system includes an eighth The user equipment of the aspect, and the base station according to the eleventh aspect, or the communication system, comprising the user equipment of the ninth aspect and the base station of the twelfth aspect.
  • a computer readable program is provided, wherein, when the program is executed in a base station, the program causes the computer to execute the foregoing fourth aspect, fifth aspect, and The power headroom value determining method according to any one of the six aspects.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform the foregoing fourth, fifth, and sixth aspects in a base station A method for determining a power headroom value as described.
  • a computer readable program wherein when the program is executed in a terminal device, the program causes the computer to execute the aforementioned first aspect, second aspect, A method of reporting a power headroom according to any of the third aspects.
  • a storage medium storing a computer readable program, wherein the computer readable program causes the computer to perform the foregoing first, second, and third aspects in the terminal device A method of reporting the described power headroom.
  • the beneficial effects of the embodiments of the present invention are:
  • the UE can be accurate and/or by the method and apparatus of this embodiment. Or the power headroom of the D2D link is reported to the base station in time, so that the base station can more efficiently and effectively schedule resources of the D2D link and the cellular link.
  • 1 is a schematic diagram of D2D communication of a terminal under the same base station
  • FIG. 2 is a schematic diagram of D2D communication of a terminal under different base stations
  • FIG. 3 is a schematic diagram of multiplexing of a cellular link and a D2D link
  • FIG. 4 is a schematic structural diagram of a power headroom MAC control element
  • Figure 5 is a schematic structural diagram of an extended power headroom MAC control element
  • FIG. 6 is a flowchart of a method for reporting a PH value according to Embodiment 1 of the present invention.
  • FIG. 7 is a schematic structural diagram of a PH MAC CE when there is only one carrier in the uplink in the embodiment of FIG. 6.
  • FIG. 8 is a schematic diagram of the embodiment of FIG. 6 when there is at least one carrier in the uplink, and the D2D link is multiplexed in Schematic diagram of the PH MAC CE when the uplink cell of the primary cell is on the uplink carrier;
  • FIG. 9 is a schematic structural diagram of a PH MAC CE when the uplink has at least one carrier and the D2D link is multiplexed on an uplink carrier of the primary cell in the embodiment of FIG. 6;
  • Figure 10 is a flowchart of a method of determining a PH value corresponding to the embodiment of Figure 6;
  • Figure 11 is a flowchart of a method for reporting a PH value according to Embodiment 3 of the present invention.
  • FIG. 12 is a schematic structural diagram of a PH MAC CE when there is only one carrier in the uplink in the embodiment of FIG. 11;
  • FIG. 13 is a schematic structural diagram of a PH MAC CE when the uplink has at least one carrier and the D2D link is multiplexed on an uplink carrier of the primary cell in the embodiment of FIG. 11;
  • FIG. 14 is a schematic structural diagram of a PH MAC CE when the uplink has at least one carrier and the D2D link is multiplexed on an uplink carrier of the primary cell in the embodiment of FIG. 11;
  • Figure 15 is a flow chart showing a method of determining the PH value corresponding to the embodiment of Figure 11;
  • Figure 16 is a flowchart showing a method of reporting a PH value according to Embodiment 5 of the present invention.
  • FIG. 17 is a schematic structural diagram of a PH MAC CE when there is only one carrier in the uplink in the embodiment of FIG. 16;
  • FIG. 18 is a schematic structural diagram of a PH MAC CE when the uplink has at least one carrier and the D2D link is multiplexed on the uplink carrier of the primary cell in the embodiment of FIG. 16;
  • FIG. 19 is a schematic structural diagram of a PH MAC CE when the uplink has at least one carrier and the D2D link is multiplexed on the uplink carrier of the primary cell in the embodiment of FIG. 16;
  • Figure 20 is a flow chart showing a method of determining the PH value corresponding to the embodiment of Figure 16;
  • 21 is a schematic diagram showing the composition of a user equipment corresponding to the embodiment of FIG. 6;
  • Figure 22 is a schematic diagram showing the composition of a base station corresponding to the embodiment of Figure 10;
  • FIG. 23 is a schematic diagram showing the composition of a user equipment corresponding to the embodiment of FIG. 11;
  • Figure 24 is a diagram showing the composition of a base station corresponding to the embodiment of Figure 15;
  • 25 is a schematic diagram showing the composition of a user equipment corresponding to the embodiment of FIG. 16;
  • Figure 26 is a diagram showing the composition of a base station corresponding to the embodiment of Figure 20. detailed description
  • Embodiments of the present invention provide a method for reporting power headroom.
  • Figure 6 is a flow chart of the method, please refer to Figure 6, the method includes:
  • Step 601 When the user equipment meets the reporting condition of the PH, the user equipment sends a power headroom report message to the base station, where the information about the carrier corresponding to the multiplexed D2D link in the power headroom report message includes the PH of the D2D link.
  • the value and the PH value of the cellular link, wherein the PH value of the D2D link and the PH value of the cellular link in the power headroom report message are preset according to system configuration.
  • the power headroom report message is a PH MAC CE.
  • the PH MAC CE includes both the PH value of the D2D link and the PH value of the cellular link, and the terminal (that is, the user equipment) allows the D2D chain multiplexed on the same carrier to be simultaneously reported in one PH MAC CE.
  • the terminal When the PHR is triggered, the terminal will report the PH value of the D2D link and the PH value of the cellular link in sequence at the location corresponding to the carrier.
  • the link type, the indication mode, and the like of the PH value in the related information of the carrier in which the D2D link is multiplexed in the power headroom report message are mainly described, and the power balance is used.
  • Other content in the volume report message that is the same as the existing standard can refer to the existing standard, and the content thereof is incorporated herein, and will not be described here.
  • the power headroom report message includes related information such as the PH value of each carrier, and the present invention is mainly directed to a carrier multiplexed with a D2D link, and related information of the carrier of the D2D link is multiplexed.
  • the link type, indication method, and the like of the PH value involved will be described. Therefore, unless otherwise stated, the PH value of the D2D link and the PH value of the cellular link involved in the various embodiments of the present invention are subject to this premise.
  • the relative positions of the above two PH values in the PH MAC CE are fixed, and the order is preset by the system configuration. For example, in the PH MAC CE, the PH value of the D2D link first appears, and then the PH value of the cellular link appears, or vice versa.
  • the MAC CE can be configured as the structure shown in FIG. As shown in FIG. 7, in this embodiment, the PH value of the cellular link is pre-configured in front of the PH value of the D2D link, and the user equipment sends the PH MAC CE to the base station as shown in FIG. Structure sent.
  • the structure of the PH MAC CE shown in FIG. 7 is only an example of only one carrier in the uplink. In other implementations in which only one carrier is in the uplink, the system also The PH value of the D2D link can be specified before the PH value of the cellular link.
  • the uplink has at least one carrier, for example, one carrier in the uplink, or multiple carriers in the uplink.
  • the PH MAC CE can be configured as shown in FIG. 8. If the D2D link is multiplexed on the uplink carrier of the secondary cell, the PH MAC CE can be configured as shown in FIG.
  • multiple D2D links may be simultaneously multiplexed on the uplink carriers of the primary cell and the secondary cell or simultaneously multiplexed on the uplink carriers of multiple secondary cells.
  • the PH MAC CE can be configured to have the features of FIG. 8 and FIG.
  • the corresponding PH value includes both the PH value of the D2D link and the PH value of the cellular link, and the relative position is fixed; when multiple D2D links are simultaneously multiplexed in multiple secondary cells
  • the PH value of the uplink carrier (the uplink carrier of the secondary cell) in which the D2D link is multiplexed in the PH MAC CE includes the PH value of the D2D link and the PH value of the cellular link, and the relative position is stable.
  • the user equipment when the D2D link is multiplexed on the uplink carrier of the primary cell (PCell), according to the method of this embodiment, for the uplink carrier of the primary cell, the user equipment needs to report its corresponding cellular link. PH value and PH value of the D2D link. If the PH value of the pre-configured D2D link is located after the PH value of the cellular link of the primary cell, the user equipment transmits the PH MAC CE to the base station in the structure shown in FIG. Of course, the structure of the PH MAC CE shown in FIG. 8 is only an example. The system may also pre-configure the two types of the PH2 of the D2D link in the primary cell (type 1 and type 2, the same below).
  • the PH value of the D2D link may also be pre-configured in the middle of the two types of PH values of the cellular link of the primary cell.
  • the system can configure any relative position of the PH values of the two links (D2D link and cellular link, the same below) in advance, as long as the configuration is well known to the base station and the terminal.
  • the PH value of the D2D link is type 1, but this is only an example.
  • the PH value of the D2D link can also be other types.
  • the user equipment when the D2D link is multiplexed on the uplink carrier of the secondary cell (SCell), according to the method of this embodiment, for the uplink carrier of the secondary cell, the user equipment needs to report the corresponding cellular link.
  • PH value and PH value of the D2D link If the PH value of the D2D link is pre-configured behind the PH value of the cellular link of the secondary cell, the user equipment transmits the PH MAC CE to the base station in the configuration shown in FIG.
  • the structure of the PH MAC CE shown in Figure 9 is only an example, and the system can also be pre-configured.
  • the PH value of the D2D link is located in front of the PH value of the cellular link of the secondary cell.
  • the system can configure any relative position of the PH values of the two links in advance, as long as the configuration is well known to the base station and the terminal.
  • the PH value of the D2D link is type 1, but this is only an example.
  • the PH value of the D2D link can also be other types.
  • the report may also be simultaneously maximum transmit power of the D2D link, P CMA X shown in FIG. 8 or FIG. 9 , so that the base station can make reasonable scheduling accordingly.
  • the existing PHR trigger condition i.e., the reporting condition of the PH
  • a new trigger condition can also be defined for the PHR.
  • the reporting condition of the PH is defined as: When the PHR prohibits the timer from timing out or has timed out, when the terminal has an uplink resource for transmitting new data, and for any activated serving cell with D2D link multiplexing, its D2D chain If the path loss of the path changes and exceeds a certain threshold, the PHR is triggered, that is, the user equipment is triggered to send the power headroom report message to the base station.
  • the UE can report the power headroom of the D2D link to the base station accurately and/or in time, so that the base station can more efficiently and effectively schedule resources of the D2D link and the cellular link.
  • the embodiment of the present invention further provides a method for determining a power headroom value, where the method corresponds to the power headroom reporting method of Embodiment 1, when the user equipment reports the PH value to the base station according to the method of Embodiment 1, the base station according to the method
  • the method in this embodiment determines which of the power headroom values of the corresponding uplink carriers reported by the user is the PH value of the D2D link, and which/which are the PH values of the cellular link.
  • FIG. 10 is a flowchart of the method in this embodiment. Referring to FIG. 10, the method includes:
  • Step 1001 The base station receives a power headroom report message sent by the user equipment, where the related information of the carrier corresponding to the multiplexed D2D link in the power headroom report message includes the PH value of the D2D link and the PH of the cellular link.
  • Step 1002 The base station determines, according to the sequence of the PH value of the D2D link configured by the system and the PH value of the cellular link in the power headroom report message, whether all the received PH values are the PH value of the D2D link or the cell. The PH value of the link.
  • the power headroom report message is the PH MAC CE described in Embodiment 1.
  • the PH value of the D2D link and the PH value of the cellular link are pre-configured in the system.
  • the base station can determine all the PH values in the PH MAC CE according to the system configuration. Which are the PH values of the D2D links and which are the PH values of the cellular links.
  • the base station when the base station receives the PH MAC CE as shown in FIG. 7, it can determine that the PH value first appearing in the PH MAC CE is a cellular link according to the system configuration.
  • the PH value after the PH value is the PH value of the D2D link.
  • the base station when the base station receives the PH MAC CE as shown in FIG. 8, since the base station knows that the D2D link is multiplexed on the uplink carrier of the primary cell, The system configuration determines that the PH value corresponding to the uplink carrier of the primary cell is that the PH value of the primary cell's cellular link is earlier, and the PH value of the D2D link is later.
  • the base station knows that the D2D link is multiplexed on the uplink carrier of the secondary cell, and the PH value corresponding to the uplink carrier of the secondary cell is determined according to the system configuration, and the PH value of the secondary cell's cellular link is in the front.
  • the PH value of the D2D link is after.
  • the uplink carriers corresponding to the cells may be determined according to the system configuration. In the PH value, whether the PH value of the cellular link is in the front or whether the PH value of the D2D link is in the front.
  • the UE can report the power headroom of the D2D link to the base station accurately and/or in time, so that the base station can more efficiently and effectively schedule resources of the D2D link and the cellular link.
  • FIG. 11 is a flow chart of the method, please refer to Figure 11, the method includes:
  • Step 1101 When the user equipment meets the reporting condition of the PH, the user equipment sends a power headroom report message to the base station, where the information about the carrier corresponding to the multiplexed D2D link in the power headroom report message includes the PH of the D2D link.
  • the PH value indication information may be one, two or more, and the embodiment is not limited thereto.
  • the value is the PH value of the cellular link.
  • the power headroom report message is a PH MAC CE.
  • the PH MAC CE includes both the PH value of the D2D link and the PH value of the cellular link, and the terminal (that is, the user equipment) allows the D2D chain multiplexed on the same carrier to be simultaneously reported in one PH MAC CE.
  • the terminal When the PHR is triggered, the terminal will report the PH value of the D2D link and the PH value of the cellular link in sequence at the location corresponding to the carrier.
  • the PH value of the D2D link and the PH value of the cellular link in the PH MAC CE are not fixed, but are flexibly configured by the system.
  • the system pre-configures an indication information (referred to as PH value indication information) to indicate the link type of a PH value reported by the system.
  • the indication information may be implemented by a reserved bit (R) in the PH MAC CE, and the reserved bit is used to indicate whether the corresponding PH value is the PH value of the D2D link or the PH value of the cellular link.
  • R reserved bit
  • the PH value of the link, another PH value (that is, the PH value of the second line in Figure 12) is the PH value of the D2D link.
  • the structure of the PH MAC CE shown in FIG. 12 is only an example of only one carrier in the uplink. In other implementations in which only one carrier is in the uplink, other reserved bits may be configured to indicate the corresponding PH value. Link type.
  • the uplink has at least one carrier, for example, one carrier in the uplink, or multiple carriers in the uplink.
  • the PH MAC CE can be configured as shown in FIG. 13; if the D2D link is multiplexed on the uplink carrier of the secondary cell, the PH MAC CE can be configured as shown in FIG.
  • the structure of the PH MAC CE shown in FIG. 13 is only an example.
  • the embodiment does not limit the PH value of the D2D link in the PH MAC CE.
  • the user equipment may also pre-configure other reserved bits to indicate The link type of the PH value corresponding to the reserved bit, and the PH value indication information is not limited to use the symbol "D", nor is it limited to indicating only the PH value of the D2D link. For example, it may also indicate the PH value of other links by other symbols.
  • the PH value of the D2D link is type 1, but this is only an example, and the PH value of the D2D link may be other types.
  • the latter PH value is the PH value of the cellular link of the secondary cell.
  • the structure of the PH MAC CE shown in FIG. 14 is only an example.
  • the user equipment may also pre-configure other reserved bits to indicate the link type of the PH value corresponding to the reserved bit, and the PH indication information is not limited to The symbol "D" is used and is not limited to indicating only the PH value of the D2D link. For example, it can also indicate the PH value of other links by other symbols.
  • the PH value of the D2D link is type 1, but this is only an example.
  • the PH value of the D2D link can also be other types.
  • the uplink of each D2D link can be multiplexed according to each
  • the PH value corresponding to the carrier indicates the information "D" to determine whether the corresponding PH value is the PH value of the D2D link or the PH value of the cellular link.
  • the maximum transmit power of the D2D link may also be reported at the same time, such as PCMAX shown in FIG. 13 or PcMAx ⁇ n shown in FIG. This is reasonably scheduled.
  • the reporting condition for the PH is the same as that of the first embodiment, and the existing PHR triggering condition (that is, the reporting condition of the PH) can be used.
  • the existing PHR triggering condition that is, the reporting condition of the PH
  • a new trigger condition is defined for the PHR.
  • the reporting condition of the PH is defined as: when the PHR prohibits the timer from timing out or has timed out, when the terminal has an uplink resource for transmitting new data, and for any active serving cell with D2D link multiplexing, its D2D chain If the path loss of the path changes and exceeds a certain threshold, the PHR is triggered, that is, the user equipment is triggered to send the power headroom report message to the base station.
  • the UE can report the power headroom of the D2D link to the base station accurately and/or in time, so that the base station can more efficiently and effectively schedule resources of the D2D link and the cellular link.
  • the embodiment of the present invention further provides a method for determining a power headroom value, where the method corresponds to the method for reporting the power headroom of Embodiment 3.
  • the base station When the user equipment reports the PH value to the base station according to the method of Embodiment 3, the base station according to the method The method in this embodiment determines which of the power headroom values of the corresponding uplink carriers reported by the user is the PH value of the D2D link, and which/which are the PH values of the cellular link.
  • the method includes:
  • Step 1501 The base station receives a power headroom report message sent by the user equipment, where the related information of the carrier corresponding to the multiplexed D2D link in the power headroom report message includes the PH value of the D2D link and the PH of the cellular link. Value, and PH value indication information;
  • Step 1502 The base station determines, according to the PH value indication information, whether the PH value of the D2D link is the PH value of the D2D link or the PH value of the cellular link, and further determines whether all the PH values received are the PH value of the D2D link.
  • the PH value of the cellular link is the PH value of the D2D link or the PH value of the cellular link.
  • the PH value indication information may be one, two or more, and the embodiment is not limited thereto.
  • the power headroom report message is the PH MAC CE described in Embodiment 3.
  • the base station may determine the PH value according to the PH value indication information. Corresponding PH link type, and then determine all PH values in the received PH MAC CE which are the PH value of the D2D link and which are the PH value of the cellular link.
  • the PH value corresponding to the PH information "D" is the PH value of the D2D link
  • the other PH values in the PH MAC CE are the PH value of the cellular link.
  • the base station when the base station receives the PH MAC CE as shown in FIG. 13, the base station knows that the D2D link is multiplexed on the uplink carrier of the primary cell of the cellular link.
  • the PH value is the PH value of the D2D link
  • the other PH value of the PH value corresponding to the uplink carrier of the primary cell is the PH value of the cellular link.
  • the base station when the base station receives the PH MAC CE as shown in FIG. 14, the base station knows that the D2D link is multiplexed with the uplink carrier of a secondary cell of the cellular link.
  • the corresponding PH value is the PH value of the D2D link
  • the other PH value of the PH value corresponding to the uplink carrier of the secondary cell is the PH value of the cellular link.
  • the uplink of each D2D link can be multiplexed according to each
  • the PH value corresponding to the carrier indicates the information "D" to determine whether the corresponding PH value is the PH value of the D2D link or the PH value of the cellular link.
  • the UE can report the power headroom of the D2D link to the base station accurately and/or in time, so that the base station can more efficiently and effectively schedule resources of the D2D link and the cellular link.
  • FIG. 16 is a flow chart of the method. Referring to Figure 16, the method includes:
  • Step 1601 When the user equipment meets the reporting condition of the PH, the user equipment sends a power headroom report message to the base station, where the related information of the carrier corresponding to the multiplexed D2D link in the power headroom report message includes the PH of the D2D link.
  • the power headroom report message is a PH MAC CE.
  • the terminal is only allowed in one PH MAC
  • the CE reports the PH value of a link multiplexed on the same carrier, that is, the PH value of the D2D link or the PH value of the cellular link.
  • the system pre-configures a PH value indication information for indicating the link type of its corresponding PH value.
  • the terminal can use pre-configured indication information (called PH value indication letter).
  • Information to indicate the link type of the PH value. For example, using a reserved bit in the current PH MAC CE to indicate whether the corresponding PH value is the PH value of the D2D link or the PH value of the cellular link, so that the base station can clearly know the corresponding PH value.
  • Link type is a reserved bit in the current PH MAC CE to indicate whether the corresponding PH value is the PH value of the D2D link or the PH value of the cellular link.
  • the uplink has only one carrier.
  • the PH MAC CE may be configured as shown in FIG. As shown in FIG. 17, in this embodiment, the PH MAC CE includes only one PH value, but indicates the link type of the PH value by the PH value indicating information "D", wherein, as described above, the PH The value indication information "D" is pre-configured by the system.
  • the user equipment can transmit the PH MAC CE to the base station in the structure shown in FIG.
  • the structure of the PH MAC CE shown in FIG. 17 is only an example of only one carrier in the uplink. In other implementations in which only one carrier is in the uplink, the system may pre-configure other reserved bits to indicate the reservation.
  • the link type of the PH value corresponding to the bit.
  • the uplink has at least one carrier, for example, one carrier in the uplink, or multiple carriers in the uplink.
  • the PH MAC CE can be configured as shown in FIG. 18; if the D2D link is multiplexed on the uplink carrier of the secondary cell, the PH MAC CE can be configured as shown in FIG.
  • the PH value indication information "D" is used to indicate the reported link type of the threshold, for example, the PH of the D2D link.
  • the value is either the PH value of the PCell's cellular link.
  • the PH value of the cellular link of the primary cell in Figure 18 has two types: Type 1 or Type 2. Whether a certain type of PH value is set by a higher layer can be solved by the prior art, and will not be described here.
  • the PH value indication information "D" may be used to indicate the link type of the reported PH value.
  • the user equipment When the user equipment transmits the PH MAC CE to the base station, it can transmit in the structure shown in FIG.
  • the structure of the PH MAC CE shown in FIG. 18 is only an example.
  • the system may also pre-configure other reserved bits to indicate the link type of the reported PH value.
  • the PH value indication information in Figure 18 is only used to indicate the link type of the PH value of type 1.
  • the system can also indicate the link type of other types of PH values by using the PH value indication information.
  • the PH value indication information "D" is used to indicate the reported link type of the threshold, for example, the PH of the D2D link.
  • the value is either the PH value of SCelli's cellular link.
  • the user equipment transmits the PH MAC CE to the base station, it can transmit in the structure shown in FIG.
  • the structure of the PH MAC CE shown in FIG. 19 is only an example.
  • the system may also pre-configure other reserved bits to indicate the link type of the reported PH value.
  • the PH value indication information in Figure 19 The link type used to indicate the PH value of type 1 can also be used by the system to indicate the link type of other types of PH values by using the PH value indication information.
  • the uplink of each D2D link can be multiplexed according to each
  • the PH value corresponding to the carrier indicates the information "D" to determine whether the corresponding PH value is the PH value of the D2D link or the PH value of the cellular link.
  • the reported PH PH is the D2D link
  • the maximum transmit power of the D2D link P C 18 shown in FIG. MAX, C 2 or PCMAX, as shown in Figure 19, so that the base station can be reasonably scheduled accordingly.
  • the reporting condition of the PH is the same as that of the first embodiment and the third embodiment, and the existing PHR triggering condition (that is, the reporting condition of the PH) can be used.
  • the existing PHR triggering condition that is, the reporting condition of the PH
  • the reporting condition of the PH is defined as: When the PHR prohibits the timer from timing out or has timed out, when the terminal has an uplink resource for transmitting new data, and for any activated serving cell with D2D link multiplexing, its D2D chain If the path loss of the path changes and exceeds a certain threshold, the PHR is triggered, that is, the user equipment is triggered to send the power headroom report message to the base station.
  • the UE can report the power headroom of the D2D link to the base station accurately and/or in time, so that the base station can more efficiently and effectively schedule resources of the D2D link and the cellular link.
  • the embodiment of the present invention further provides a method for determining a power headroom value, where the method corresponds to the method for reporting the power headroom of Embodiment 5, when the user equipment reports the PH value to the base station according to the method of Embodiment 5, the base station according to the method The method of this embodiment determines the link type of the power headroom value reported by the user.
  • the method includes:
  • Step 2001 The base station receives a power headroom report message sent by the user equipment, where the related information of the carrier corresponding to the multiplexed D2D link in the power headroom report message includes the PH value of the D2D link or the PH of the cellular link. Value and PH value indication information;
  • Step 2002 The base station determines, according to the PH value indication information, whether the PH value corresponding to the PH value indication information is a PH value of the D2D link or a PH value of the cellular link.
  • the power headroom report message is the PH MAC CE described in Embodiment 5.
  • the base station can determine the corresponding information according to the PH value indication information.
  • the link type of the PH value since the system pre-configures the PH value indication information of the link type for indicating the reported PH value, after receiving the PH MAC CE, the base station can determine the corresponding information according to the PH value indication information.
  • the link type of the PH value since the system pre-configures the PH value indication information of the link type for indicating the reported PH value, after receiving the PH MAC CE, the base station can determine the corresponding information according to the PH value indication information.
  • the link type of the PH value since the system pre-configures the PH value indication information of the link type for indicating the reported PH value, after receiving the PH MAC CE, the base station can determine the corresponding information according to the PH value indication information.
  • the link type of the PH value since the system pre-configures the PH value indication information of the link type for indicating the reported PH value, after receiving the PH MAC CE, the base
  • the PH MAC CE structure shown in FIG. 17 is used as an example.
  • the base station receives the PH MAC CE as shown in FIG. 17, it can determine that the user equipment reports according to the value indication information "D" in the PH MAC CE.
  • the link type of the PH value is used as an example.
  • the link type of the PH value of type 1 corresponding to the uplink carrier of the primary cell (PCell) can be determined according to the PH value indication information "D" in the PH MAC CE.
  • the PH MAC CE structure shown in FIG. 19 is taken as an example.
  • the base station may determine the auxiliary information according to the PH value indication information “D” in the PH MAC CE.
  • the uplink of each D2D link can be multiplexed according to each
  • the PH value corresponding to the carrier indicates the information "D" to determine whether the corresponding PH value is the PH value of the D2D link or the PH value of the cellular link.
  • the UE can report the power headroom of the D2D link to the base station accurately and/or in time, so that the base station can more efficiently and effectively schedule resources of the D2D link and the cellular link.
  • the embodiment of the present invention further provides a user equipment, as described in Embodiment 7 below. Because the user equipment solves the problem and the method type of Embodiment 1, the specific implementation may refer to the method of Embodiment 1. Implementation, repetition will not be repeated.
  • FIG. 21 is a schematic diagram of the composition of the user equipment.
  • the user equipment includes:
  • the sending unit 211 when the reporting condition of the PH is met, sends a power headroom report message to the base station, where the related information of the carrier corresponding to the multiplexed D2D link in the power headroom report message includes the PH of the D2D link
  • the value and the PH value of the cellular link, wherein the PH value of the D2D link and the PH value of the cellular link in the power headroom report message are preset according to system configuration.
  • the power headroom report message is a PH MAC CE.
  • the reporting condition of the PH is:
  • the PH prohibit timer expires or has timed out.
  • the user equipment has an uplink resource for transmitting new data, and the path loss of the D2D link is generated for any activated serving cell with D2D link multiplexing. The change has occurred and exceeded the pre-set threshold.
  • the power headroom of the D2D link can be reported to the base station accurately and/or in time, so that the base station can more efficiently and efficiently schedule resources of the D2D link and the cellular link.
  • the embodiment of the present invention further provides a base station, as described in Embodiment 8 below. Since the base station solves the problem and the method type of the second embodiment, the specific implementation may refer to the implementation of the method of the second embodiment. The repetitions are not repeated here.
  • the embodiment of the invention further provides a base station.
  • 22 is a schematic structural diagram of the base station. Referring to FIG. 22, the base station includes:
  • the receiving unit 221 receives the power headroom report message sent by the user equipment, where the related information of the carrier corresponding to the multiplexed D2D link in the power headroom report message includes the PH value of the D2D link and the cellular link. PH value;
  • the determining unit 222 determines, according to the sequence of the PH value of the D2D link configured by the system and the PH value of the cellular link in the power headroom report message, whether all the received threshold values are the PH value of the D2D link or the cellular chain.
  • the PH value of the road is the sequence of the PH value of the D2D link configured by the system and the PH value of the cellular link in the power headroom report message.
  • the power headroom report message is a PH MAC CE.
  • the embodiment of the present invention further provides a user equipment, as described in the following embodiment 9, because the user equipment solves the problem and the method type of the third embodiment, the specific implementation may refer to the method of the third embodiment. Implementation, repetition will not be repeated.
  • FIG. 23 is a schematic diagram of the composition of the user equipment.
  • the user equipment includes:
  • the sending unit 231 when the reporting condition of the PH is met, sends a power headroom report message to the base station, where the related information of the carrier corresponding to the multiplexed D2D link in the power headroom report message includes the PH of the D2D link The value, the PH value of the cellular link, and the PH value indication information, where the PH value indication information is used to indicate whether the corresponding PH value is the PH value of the D2D link or the PH value of the cellular link.
  • the power headroom report message is a PH MAC CE.
  • the reporting condition of the PH is: The PH prohibit timer expires or has timed out.
  • the user equipment has an uplink resource for transmitting new data, and the path loss of the D2D link changes and exceeds for any activated serving cell with D2D link multiplexing. Pre-set threshold.
  • the power headroom of the D2D link can be reported to the base station accurately and/or in time, so that the base station can more efficiently and efficiently schedule resources of the D2D link and the cellular link.
  • the embodiment of the present invention further provides a base station, as described in Embodiment 10 below. Because the principle of the base station solves the problem and the method type of the embodiment 4, the specific implementation may refer to the implementation of the method in Embodiment 4. The repetitions are not repeated here.
  • the embodiment of the invention provides a base station.
  • Figure 24 is a schematic diagram of the composition of the base station. Referring to Figure 24, the base station includes:
  • the receiving unit 241 receives the power headroom report message sent by the user equipment, where the related information of the carrier corresponding to the multiplexed D2D link in the power headroom report message includes the PH value of the D2D link and the cellular link. PH value and PH value indication information;
  • a determining unit 242 which determines, according to the PH value indication information, that the PH value corresponding to the PH value indication information is
  • the PH value of the D2D link is also the PH value of the cellular link, and it is determined whether all PH values received are the PH value of the D2D link or the PH value of the cellular link.
  • the power headroom report message is a PH MAC CE.
  • the embodiment of the present invention further provides a user equipment, as described in the following Embodiment 11, because the user equipment solves the problem and the method type of the embodiment 5, the specific implementation may refer to the method of Embodiment 5. Implementation, repetition will not be repeated.
  • the embodiment of the invention provides a user equipment.
  • 25 is a schematic diagram of the composition of the user equipment. Referring to FIG. 25, the user equipment includes:
  • the sending unit 251 when the reporting condition of the PH is met, sends a power headroom report message to the base station, where the related information of the carrier corresponding to the multiplexed D2D link in the power headroom report message includes the PH of the D2D link The value or the threshold value of the cellular link, and the PH value indication information, where the PH value indication information is used to indicate whether the PH value corresponding to the PH value indication information is the PH value of the D2D link or the PH value of the cellular link.
  • the power headroom report message is a PH MAC CE.
  • the reporting condition of the PH is:
  • the PH prohibit timer expires or has timed out.
  • the user equipment has an uplink resource for transmitting new data, and the path loss of the D2D link changes and exceeds for any activated serving cell with D2D link multiplexing. Pre-set threshold.
  • the power headroom of the D2D link can be reported to the base station accurately and/or in time, so that the base station can more efficiently and efficiently schedule resources of the D2D link and the cellular link.
  • the embodiment of the present invention further provides a base station, as described in the following Embodiment 12, because the principle of the base station solves the problem and the method type of the embodiment 6, the specific implementation may refer to the implementation of the method of Embodiment 6. The repetitions are not repeated here.
  • the embodiment of the invention provides a base station.
  • 26 is a schematic diagram of the composition of the base station. Referring to FIG. 26, the base station includes:
  • the receiving unit 261 receives the power headroom report message sent by the user equipment, where the related information of the carrier corresponding to the multiplexed D2D link in the power headroom report message includes the PH value of the D2D link or the cellular link. PH value, and PH value indication information;
  • the determining unit 262 determines, according to the PH value indication information, whether the PH value corresponding to the PH value indication information is the PH value of the D2D link or the PH value of the cellular link.
  • the power headroom report message is a PH MAC CE.
  • the embodiment of the present invention further provides a communication system, where the communication system includes the user equipment described in Embodiment 7 and the base station described in Embodiment 8, or the communication system includes the user described in Embodiment 9.
  • the device and the base station described in Embodiment 10, or the communication system include the user equipment described in Embodiment 11 and the base station described in Embodiment 12.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a base station, the program causes the computer to perform the power headroom value determination in Embodiment 2, 4 or 6 in the base station method.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to execute the power headroom value determining method described in Embodiment 2, 4, or 6 in a base station.
  • An embodiment of the present invention further provides a computer readable program, wherein the program is executed in a terminal device
  • the program causes the computer to execute the reporting method of the power headroom described in Embodiment 1, 3 or 5 in the terminal device.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to execute the power headroom reporting method described in Embodiment 1, 3, or 5 in the terminal device.
  • the above apparatus and method of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • Logic components such as field programmable logic components, microprocessors, processors used in computers, and the like.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.

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Abstract

本发明实施例提供了一种功率余量的报告方法和装置,其中,所述方法包括:用户设备在满足PH的上报条件时,向基站发送功率余量报告消息,所述功率余量报告消息中对应于复用了D2D链路的载波的相关信息中包含D2D链路的PH值和蜂窝链路的PH值,其中,所述D2D链路的PH值和所述蜂窝链路的PH值在所述功率余量报告消息中的顺序是根据系统配置预先设定的。通过本实施例的方法和装置,UE可以准确和/或及时的将D2D链路的功率余量上报给基站,由此,基站可以更加灵活和有效的调度D2D链路和蜂窝链路的资源。

Description

功率余量的报告方法和装置 技术领域
本发明涉及通信系统, 尤其涉及一种在 D2D (Device to Device, 设备对设备) 通信方式下的新型 PHR (Power Headroom Report, 功率余量报告)。 背景技术
在现有的蜂窝无线通信系统中, 用户 (UE, User Equipment)与对端的用户进行 通信时,无论对端用户在什么位置,用户都需要把发送给对端用户的数据发送到基站, 然后经由核心网,再由给对端用户服务的基站将数据发送给对端用户;反之,类似的, 对端用户发送过来的数据, 也要经过 "基站-核心网-基站" 的路径发送过来, 最后由 用户通过空口接收。这样, 就会出现这样一种情况: 两个互相交流数据的用户位于非 常近的位置, 比如在相邻基站下或同一个基站下, 但是, 由于现有无线通信方式的限 制, 他们之间交流的数据还是要通过 "基站-核心网-基站" 的方式交流。 显然, 在两 个对端用户距离非常近的情况下, 这种交流方式既加重了核心网的负担, 又消耗了终 端过多能量, 因为在这种情况下, 终端与基站之间的距离往往超过两个终端之间的距 离, 因此终端需要更多的能量来发射数据。 因此, 在这种情况下, 距离非常近的两个 用户可以采用 D2D通信的方式,即通过两个终端之间的 D2D链路直接进行数据的发 送和接收, 如图 1和 2所示。其中, 图 1表示 D2D链路两端的用户在同一个基站下, 而图 2表示 D2D链路两端的用户在相邻的不同基站下。
目前, 在采用 D2D通信方式时, D2D链路可采用独立的频率, 也可以与蜂窝链 路复用在 LTE-A系统的上行载波中, 如图 3所示。 在图 3中, LTE-A的上行载波为 Fl, 下行载波为 F2, 蜂窝链路和 D2D链路时分复用在 Fl上。 D2D链路与蜂窝链路 复用在 LTE-A上行载波上, D2D链路的调度仍然由基站控制, 可以减少资源浪费和 减少干扰。
另一方面, 在 LTE-A系统中, 由于上下行链路的资源调度都是由基站控制, 为 了更好地调度资源, 基站需要用户报告链路的信道状况, 比如: 报告 CQI ( Channel Quality Indication, 信道质量指示) 等信息。 这样基站可以给用户分配合适的调制编 码等级。 同时, 基站还要控制用户的发射功率, 以更好的克服用户的远近效应和控制 用户的发射功率不要超过的它的最大发射功率,因此,用户还要向基站报告 PH(P0wer Header,功率余量)值,这个过程称之为 PHR (Power Header Report,功率余量报告)。 同时, PHR对基站分配上行链路资源和选择用户在上行链路上的调制编码等级也都 有参考意义。 由此可见, PHR对基站调度资源的参考意义是非常明显的。
在 D2D通信方式中, 由于 D2D链路资源同样由基站控制, 因此可以预见, 在
D2D通信方式下,对于基站来讲, PHR仍然是一个非常有用的调度参考信息,即 D2D 链路的 PH值也需要用户报告给基站。
在 LTE-A系统的 PHR过程中, PH值是包含在 PH MAC CE (Power Headroom MAC Control element)中, 由用户上报给基站的, 其中包括用户在每个激活载波上的 PH值。 如果上行链路只有一个载波, 那么就包括这唯一的上行载波上的 PH值, 其 可以根据系统配置,采用图 4或图 5中 PH MAC CE格式。如果上行链路有多个载波, 可以采用图 5中扩展的 PH MAC CE格式。
具体来讲, 在图 4中, PH值为该唯一的上行载波对应的 PH值, 为类型 1, 且为 真实值。 其中, R为预留比特。 图 5中, 其控制元的定义及说明如下:
ci: 在控制元中第一个字节中, ci位置对应于系统定义的辅小区 (即每个 α— 一对应一个辅小区), 其值表示其对应的辅小区的蜂窝链路的 ΡΗ值是否存在。 当其 值为 " 1 "时, 表示对应辅小区的 ΡΗ值会出现; 当其值为 "0"时, 表示对应辅小区 的 ΡΗ值不会出现。 同时, 不同辅小区的蜂窝链路的 ΡΗ值出现的顺序与其对应的 Ci 出现的顺序相同。 对于主小区 (PCell), 其 PH值是一定出现的, 并且最先出现。 主 小区有两种 PH值: 类型 1和类型 2。 主小区的类型 1的 PH值一定会出现, 是否出 现类型 2的 ΙΉ值则由系统高层配置。 辅小区 (SCell) 只会出现一种类型的 PH值, 即类型 1的 PH值。 如果上行只有一个载波, 则在 PH MAC CE中只会出现主小区的 蜂窝链路的 PH值。
V比特: 其可以用来指示对应的 PH值是真实 PH值还是虚拟 PH值, 例如: V=l 代表对应的 PH值为真实的, V=0 代表对应的 PH值为虚拟的。 同时, 其还用来指示 是否出现对应的 PCMAX^: V=l代表会出现 PCMAX^ 即只有当对应的 PH值为真实的 值时, 用户才报告 PCMAX^; V=0代表不会出现 PCMAX^ 即对应的 PH值为虚拟的时 候, 用户不报告 PCMAX,C
PCMAX,C: 如果出现, 则表示用户侧用来计算 PH值所用的相关参数。 P比特: 用来表示用户是否应用了由于功率管理所引起的功率后退。 假设没有由 于应用功率管理而引起的功率后退的条件下, 所对应的 PCMAX,。会有不同的取值, 这 个时候, 用户应当把 P比特设为 1。
R比特: 预留比特。
发明人在实现本发明的过程中发现, 在 D2D通信方式中的 PHR过程中, 如果仍 然沿用 LTE-A系统原有的 PH MAC CE格式, 对应于每个载波只有一个链路 PH值, 即只有蜂窝链路的 PH值, 如果 D2D链路与蜂窝链路动态复用在 LTE-A系统的上行 载波上, 就会出现下述问题:
1、 如果基站需要用户在一个 PHR中同时报告某个上行载波中 D2D链路和蜂窝 链路的 PH值 (比如, 一个真实值, 一个虚拟值), 这个时候, 原有的格式不能支持;
2、 如果基站需要用户在一个 PHR中对每个上行载波只报告一个 PH值, 那么由 于下行链路中分配资源的 PDCCH在有些情况下会丢失 (例如终端没有正确接收), 造成一些基站难以预料的情况, 比如用户本来应该在当前 TTI的 D2D链路上发送数 据但是实际上却没有发送, 或者本来不应该在 D2D链路上发送数据, 但是实际上却 在 D2D链路上发送了数据, 这个时候, 基站就可能不清楚用户报告的 PH值是 D2D 链路的, 还是蜂窝链路的。 只有确定了 PH值是某个链路的, 再根据现有格式中的 V 比特, 基站才能正确地判断 PH值的正确种类。
另外, PHR 的触发条件有很多种, 有周期性触发和事件触发。 周期性的触发能 够保证基站不会在很长时间内收不到 PHR, 而事件触发则保证在某些严重影响基站 调度的事件发生时, 基站能够及时地得到 PHR, 而不必等到周期性触发中的当前周 期完毕之后才得到 PHR。 在事件性触发条件中, 有如下四种情况:
1、 PHR禁止计时器超时或者已经超时同时从上次 PHR发送之后, 当用户有用 于发送新数据的上行资源时,至少一个用于路径损耗参考的激活服务小区的路径损耗 发生了变化并超过了某一个阈值, 那么就触发 PHR;
2、 当高层在配制或重配功率余量报告功能时, 并且这个配制或重配不是被用来 把功率余量报告功能去掉, 这个时候, 触发 PHR;
3、 当一个配置了上行链路的辅小区被激活时, 触发 PHR;
4、 PHR禁止计时器超时或者已经超时, 当用户有用于发送新数据的上行资源, 并且对于任何一个配置了上行链路的激活服务小区, 在当前 TTI (Transmission Time Interval) 下述条件为真时, 触发 PHR: 在当前小区中有上行资源用于传输或者有 PUCCH(Physical Uplink Control CHannel)传输, 并且从上次当这个小区有上行资源用 于传输或者有 PUCCH传输时 PHR发送之后, 因为功率管理所引起的当前小区的功 率回调已经变化并超过了某个阈值。
发明人在实现本发明的过程中发现, 在上述四个时间触发条件中, 触发条件 1 主要考虑了用于路径损耗参考的服务小区的路径损耗变化情况, 需要注意的是,这里 的服务小区均指的是蜂窝链路。 而在 D2D通信方式中, 路径损耗参考不再是蜂窝链 路, 而应当是 D2D链路中的参考信号, 其特点与蜂窝链路的路径损耗参考信号可能 不同; 其次, D2D 链路的长度, 与蜂窝链路比较起来, 显然要近一些, 其链路长度 变化同样的距离, 对链路损耗影响要比蜂窝链路更大一些。 因此, 为了反映 D2D路 径损耗的变化, 仍然沿用触发条件 1中的触发条件, 将不太适合, 需要定义新的触发 条件。
参考文献:
[非专利文献 1]: 3GPP TS 36.331 VII.1.0(2012-09) Radio Resource Control ( C) specification.( elease 11)
[非专利文献 2]: 3GPP TS 36.321 VI 1.0.0(2012-09). Medium Access Control (MAC) protocol specification .(Release 11)
应该注意, 上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、 完整的说明, 并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发 明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。 发明内容
本发明实施例的目的在于提供一种功率余量的报告方法和装置, 以便 UE能准确 和 /及时的将 D2D链路的功率余量上报给基站。
根据本发明实施例的第一方面, 提供了一种功率余量的报告方法, 其中, 所述方 法包括:
用户设备在满足 PH的上报条件时, 向基站发送功率余量报告消息, 所述功率余 量报告消息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值和 蜂窝链路的 PH值, 其中, 所述 D2D链路的 PH值和所述蜂窝链路的 PH值在所述功 率余量报告消息中的顺序是根据系统配置预先设定的。
根据本发明实施例的第二方面, 提供了一种功率余量的报告方法, 其中, 所述方 法包括:
用户设备在满足 PH的上报条件时, 向基站发送功率余量报告消息, 所述功率余 量报告消息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值、 蜂窝链路的 PH值和 PH值指示信息, 其中, 所述 PH值指示信息用于指示其对应的 PH值是 D2D链路的 PH值还是蜂窝链路的 PH值。
根据本发明实施例的第三方面, 提供了一种功率余量的报告方法, 其中, 所述方 法包括:
用户设备在满足 PH的上报条件时, 向基站发送功率余量报告消息, 所述功率余 量报告消息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值或 者蜂窝链路的 PH值和 PH值指示信息, 其中, 所述 PH值指示信息用于指示其对应 的 PH值是 D2D链路的 PH值还是蜂窝链路的 PH值。
根据本发明实施例的第四方面, 提供了一种功率余量值确定方法, 其中, 所述方 法包括:
基站接收用户设备发送的功率余量报告消息, 所述功率余量报告消息中对应于复 用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值和蜂窝链路的 PH值; 所述基站根据系统配置的 D2D链路的 PH值和蜂窝链路的 PH值在功率余量报告 消息中的先后顺序, 确定接收到的所有 PH值是 D2D链路的 PH值还是蜂窝链路的 PH值。
根据本发明实施例的第五方面, 提供了一种功率余量值确定方法, 其中, 所述方 法包括:
基站接收用户设备发送的功率余量报告消息, 所述功率余量报告消息中对应于复 用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值和蜂窝链路的 值和 PH 值指示信息;
所述基站根据所述 PH值指示信息确定其对应的 PH值是 D2D链路的 PH值还是 蜂窝链路的 PH值, 进而确定接收到的所有 PH值是 D2D链路的 PH值还是蜂窝链路 的 PH值。
根据本发明实施例的第六方面, 提供了一种功率余量值确定方法, 其中, 所述方 法包括:
基站接收用户设备发送的功率余量报告消息, 所述功率余量报告消息中对应于复 用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值或者蜂窝链路的 PH值和 PH值指示信息;
所述基站根据所述 PH值指示信息确定其对应的 PH值是 D2D链路的 PH值还是 蜂窝链路的 PH值。
根据本发明实施例的第七方面,提供了一种用户设备,其中,所述用户设备包括: 发送单元, 其在满足 PH的上报条件时, 向基站发送功率余量报告消息, 所述功 率余量报告消息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH 值和蜂窝链路的 PH值, 其中, 所述 D2D链路的 PH值和所述蜂窝链路的 PH值在所 述功率余量报告消息中的顺序是根据系统配置预先设定的。
根据本发明实施例的第八方面,提供了一种用户设备,其中,所述用户设备包括: 发送单元, 其在满足 PH的上报条件时, 向基站发送功率余量报告消息, 所述功 率余量报告消息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH 值、 蜂窝链路的 PH值和 PH值指示信息, 其中, 所述 PH值指示信息用于指示其对 应的 PH值是 D2D链路的 PH值还是蜂窝链路的 PH值。
根据本发明实施例的第九方面,提供了一种用户设备,其中,所述用户设备包括: 发送单元, 其在满足 PH的上报条件时, 向基站发送功率余量报告消息, 所述功 率余量报告消息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH 值或蜂窝链路的 PH值和 PH值指示信息, 其中, 所述 PH值指示信息用于指示其对 应的 PH值是 D2D链路的 PH值还是蜂窝链路的 PH值。
根据本发明实施例的第十方面, 提供了一种基站, 其中, 所述基站包括: 接收单元, 其接收用户设备发送的功率余量报告消息, 所述功率余量报告消息中 对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值和蜂窝链路的 PH 值;
确定单元, 其根据系统配置的 D2D链路的 PH值和蜂窝链路的 PH值在功率余量 报告消息中的先后顺序,确定接收到的所有 PH值是 D2D链路的 PH值还是蜂窝链路 的 PH值。
根据本发明实施例的第十一方面, 提供了一种基站, 其中, 所述基站包括: 接收单元, 其接收用户设备发送的功率余量报告消息, 所述功率余量报告消息中 对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值和蜂窝链路的 PH 值和 PH值指示信息;
确定单元, 其根据所述 PH值指示信息确定其对应的 PH值是 D2D链路的 PH值 还是蜂窝链路的 PH值, 进而确定接收到的所有 PH值是 D2D链路的 PH值还是蜂窝 链路的 PH值。
根据本发明实施例的第十二方面, 提供了一种基站, 其中, 所述基站包括: 接收单元, 其接收用户设备发送的功率余量报告消息, 所述功率余量报告消息中 对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值或蜂窝链路的 PH 值和 PH值指示信息;
确定单元, 其根据所述 PH值指示信息确定其对应的 PH值是 D2D链路的 PH值 还是蜂窝链路的 PH值。
根据本发明实施例的第十三方面, 提供了一种通信系统, 其中, 所述通信系统包 括第七方面所述的用户设备以及第十方面所述的基站,或者所述通信系统包括第八方 面所述的用户设备以及第十一方面所述的基站,或者所述通信系统包括第九方面所述 的用户设备以及第十二方面所述的基站。
根据本发明实施例的其他方面, 还提供了一种计算机可读程序, 其中, 当在基站 中执行该程序时, 该程序使得计算机在所述基站中执行前述第四方面、第五方面、第 六方面任一项所述的功率余量值确定方法。
根据本发明实施例的其他方面, 还提供了一种存储有计算机可读程序的存储介 质, 其中, 该计算机可读程序使得计算机在基站中执行前述第四方面、 第五方面、 第 六方面任一项所述的功率余量值确定方法。
根据本发明实施例的其他方面,还提供了一种计算机可读程序,其中当在终端设 备中执行该程序时, 该程序使得计算机在所述终端设备中执行前述第一方面、第二方 面、 第三方面任一项所述的功率余量的报告方法。
根据本发明实施例的其他方面, 还提供了一种存储有计算机可读程序的存储介 质, 其中该计算机可读程序使得计算机在终端设备中执行前述第一方面、 第二方面、 第三方面任一项所述的功率余量的报告方法。
本发明实施例的有益效果在于: 通过本实施例的方法和装置, UE 可以准确和 / 或及时的将 D2D链路的功率余量上报给基站, 由此, 基站可以更加灵活和有效的调 度 D2D链路和蜂窝链路的资源。
参照后文的说明和附图,详细公开了本发明的特定实施方式, 指明了本发明的原 理可以被采用的方式。应该理解, 本发明的实施方式在范围上并不因而受到限制。在 所附权利要求的精神和条款的范围内,本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和 /或示出的特征可以以相同或类似的方式在一个或更多 个其它实施方式中使用, 与其它实施方式中的特征相组合, 或替代其它实施方式中的 特征。
应该强调, 术语"包括 /包含"在本文使用时指特征、 整件、 步骤或组件的存在, 但并不排除一个或更多个其它特征、 整件、 步骤或组件的存在或附加。 附图说明
参照以下的附图可以更好地理解本发明的很多方面。附图中的部件不是成比例绘 制的, 而只是为了示出本发明的原理。 为了便于示出和描述本发明的一些部分, 附图 中对应部分可能被放大或缩小。在本发明的一个附图或一种实施方式中描述的元素和 特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外,在 附图中, 类似的标号表示几个附图中对应的部件, 并可用于指示多于一种实施方式中 使用的对应部件。 在附图中:
图 1是终端在同一个基站下的 D2D通信示意图;
图 2是终端在不同基站下的 D2D通信示意图;
图 3是蜂窝链路与 D2D链路的复用示意图;
图 4是功率余量 MAC控制元的结构示意图;
图 5是扩展的功率余量 MAC控制元的结构示意图;
图 6是本发明实施例 1的 PH值的报告方法的流程图;
图 7是图 6的实施例中当上行链路只有一个载波时, PH MAC CE的结构示意图; 图 8是图 6的实施例中当上行链路有至少一个载波, 且 D2D链路复用在主小区 的上行载波上时, PH MAC CE的结构示意图;
图 9是图 6的实施例中当上行链路有至少一个载波, 且 D2D链路复用在主小区 的上行载波上时, PH MAC CE的结构示意图; 图 10是对应图 6的实施例的 PH值的确定方法的流程图;
图 11是本发明实施例 3的 PH值的报告方法的流程图;
图 12是图 11的实施例中当上行链路只有一个载波时, PH MAC CE的结构示意 图;
图 13是图 11的实施例中当上行链路有至少一个载波, 且 D2D链路复用在主小 区的上行载波上时, PH MAC CE的结构示意图;
图 14是图 11的实施例中当上行链路有至少一个载波, 且 D2D链路复用在主小 区的上行载波上时, PH MAC CE的结构示意图;
图 15是对应图 11的实施例的 PH值的确定方法的流程图;
图 16是本发明实施例 5的 PH值的报告方法的流程图;
图 17是图 16的实施例中当上行链路只有一个载波时, PH MAC CE的结构示意 图;
图 18是图 16的实施例中当上行链路有至少一个载波, 且 D2D链路复用在主小 区的上行载波上时, PH MAC CE的结构示意图;
图 19是图 16的实施例中当上行链路有至少一个载波, 且 D2D链路复用在主小 区的上行载波上时, PH MAC CE的结构示意图;
图 20是对应图 16的实施例的 PH值的确定方法的流程图;
图 21是对应图 6的实施例的用户设备的组成示意图;
图 22是对应图 10的实施例的基站的组成示意图;
图 23是对应图 11的实施例的用户设备的组成示意图;
图 24是对应图 15的实施例的基站的组成示意图;
图 25是对应图 16的实施例的用户设备的组成示意图;
图 26是对应图 20的实施例的基站的组成示意图。 具体实施方式
参照附图, 通过下面的说明书, 本发明实施例的前述以及其它特征将变得明显。 这些实施方式只是示例性的, 不是对本发明的限制。为了使本领域的技术人员能够容 易地理解本发明的原理和实施方式, 本发明的实施方式以 D2D链路和蜂窝链路复用 在 LTE-A系统的上行载波中为例, 对本实施例的方法进行说明, 但可以理解, 本发 明实施例并不限于上述场景, 对于涉及 PHR上报的其他场景均适用。
实施例 1
本发明实施例提供了一种功率余量的报告方法。 图 6是该方法的流程图,请参照 图 6, 该方法包括:
步骤 601 : 用户设备在满足 PH的上报条件时, 向基站发送功率余量报告消息, 所述功率余量报告消息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路 的 PH值和蜂窝链路的 PH值, 其中, 所述 D2D链路的 PH值和所述蜂窝链路的 PH 值在所述功率余量报告消息中的顺序是根据系统配置预先设定的。
在本实施例中, 该功率余量报告消息为 PH MAC CE。 该 PH MAC CE中既包含 了 D2D链路的 PH值也包含了蜂窝链路的 PH值, 终端(也即该用户设备)允许在一 个 PH MAC CE中同时报告复用在同一载波上的 D2D链路的 PH值和蜂窝链路的 PH 值, 当 PHR触发时, 终端将在此载波对应的位置依次报告 D2D链路的 PH值和蜂窝 链路的 PH值。
在本实施例以及其他的实施例中, 主要针对该功率余量报告消息中复用了 D2D 链路的载波的相关信息中的 PH值的链路类型、 指示方式等进行说明, 对于该功率余 量报告消息中的其他与现有标准相同的内容,可以参考现有标准,其内容被合并于此, 在此不再说明。也就是说,功率余量报告消息中包含了各个载波的 PH值等相关信息, 而本发明主要是针对复用了 D2D链路的载波,对于该复用了 D2D链路的载波的相关 信息中所涉及的 PH值的链路类型、 指示方式等进行说明。 因此, 若无特殊说明, 在 本发明各个实施例中所涉及的 D2D链路的 PH值、蜂窝链路的 PH值等描述都是以此 前提为准。
在本实施例中, 上述两个 PH值在 PH MAC CE中的相对位置是固定的, 其顺序 通过系统配置预先设定。 比如, 在 PH MAC CE中, 先出现 D2D链路的 PH值, 再出 现蜂窝链路的 PH值, 或者反之。
在本实施例的一个实施方式中, 上行链路只有一个载波, 在该实施方式中, PH
MAC CE可以配置为图 7所示的结构。如图 7所示, 在该实施方式中, 系统预先配置 蜂窝链路的 PH值位于 D2D链路的 PH值的前面,则用户设备在向基站发送 PH MAC CE时, 会以图 7所示的结构发送。 当然, 图 7所示的 PH MAC CE的结构只是上行 链路只有一个载波的举例说明, 在上行链路只有一个载波的其他实施方式中, 系统也 可以规定 D2D链路的 PH值在蜂窝链路的 PH值之前。
在本实施例的另外一个实施方式中, 上行链路有至少一个载波, 例如上行链路有 一个载波, 或者上行链路有多个载波, 则在该实施方式中, 如果 D2D链路复用在主 小区的上行载波上, 则 PH MAC CE可以配置为图 8所示的结构; 如果 D2D链路复 用在辅小区的上行载波上, 则 PH MAC CE可以配置为图 9所示的结构。
其中, 如果终端有多个 D2D链路, 那么多个 D2D链路可以同时复用在主小区和 辅小区的上行载波上或者同时复用在多个辅小区的上行载波上。 当多个 D2D链路同 时复用在主小区和辅小区的上行载波上时, 其 PH MAC CE可以配置成同时具有图 8 和图 9的特征, 即, 有 D2D链路复用的主小区和辅小区的上行载波, 各自对应的 PH 值既包括 D2D 链路的 PH值也包括蜂窝链路的 PH值, 并且相对位置是固定的; 当 多个 D2D链路同时复用在多个辅小区的上行载波上, 其 PH MAC CE中复用了 D2D 链路的上行载波 (辅小区的上行载波) 对应的 PH值既包括 D2D 链路的 PH值也包 括蜂窝链路的 PH值, 并且相对位置是固定的。
如图 8所示, 当 D2D链路复用在主小区 (PCell) 的上行载波上时, 根据本实施 例的方法, 对于该主小区的上行载波, 用户设备需要上报其对应的蜂窝链路的 PH值 和 D2D链路的 PH值。 如果系统预先配置 D2D链路的 PH值位于该主小区的蜂窝链 路的 PH值的后面, 则用户设备在向基站发送 PH MAC CE时, 会以图 8所示的结构 发送。 当然, 图 8所示的 PH MAC CE的结构只是举例说明, 系统也可以预先配置 D2D链路的 PH值位于该主小区的蜂窝链路的两种类型 (类型 1和类型 2, 下同) 的 PH值的前面, 也可以预先配置 D2D链路的 PH值位于该主小区的蜂窝链路的两种类 型的 PH值的中间。在本实施例下, 系统可以提前配置这两种链路(D2D链路和蜂窝 链路, 下同) 的 PH值的任何一种相对位置, 只要这种配置是基站和终端共知的。 在 图 8中, D2D链路的 PH值为类型 1, 但这只是举例说明, D2D链路的 PH值也可 以为其他类型。
如图 9所示, 当 D2D链路复用在辅小区 (SCell) 的上行载波上时, 根据本实施 例的方法, 对于该辅小区的上行载波, 用户设备需要上报其对应的蜂窝链路的 PH值 和 D2D链路的 PH值。 如果系统预先配置 D2D链路的 PH值位于该辅小区的蜂窝链 路的 PH值的后面, 则用户设备在向基站发送 PH MAC CE时, 会以图 9所示的结构 发送。 当然, 图 9所示的 PH MAC CE的结构只是举例说明, 系统也可以预先配置 D2D链路的 PH值位于该辅小区的蜂窝链路的 PH值的前面。 在本实施例下, 系统可 以提前配置这两种链路的 PH值的任何一种相对位置, 只要这种配置是基站和终端共 知的。 在图 9中, D2D链路的 PH值为类型 1, 但这只是举例说明, D2D链路的 PH 值也可以为其他类型。
可选的, 在图 8和图 9所示的实施方式中, 还可以同时上报该 D2D链路的最大 发射功率, 如图 8所示的 PCMAX, 或者图 9所示的
Figure imgf000014_0001
, 以便基站据此进行合 理调度。
在本实施例中, 可以沿用现有的 PHR触发条件 (也即 PH的上报条件), 然而, 为了更好的反映 D2D链路的信号特性, 也可以对该 PHR定义新的触发条件。 例如, 将该 PH的上报条件定义为: 当 PHR禁止计时器超时或者已经超时, 当终端有用于 发送新数据的上行资源,并且对于任何一个有 D2D链路复用的激活服务小区,其 D2D 链路的路径损耗发生了变化并超过了某一个阈值, 则触发 PHR, 也即触发用户设备 向基站发送上述功率余量报告消息。
通过本实施例的方法, UE可以准确和 /或及时的将 D2D链路的功率余量上报给基 站, 由此, 基站可以更加灵活和有效的调度 D2D链路和蜂窝链路的资源。
实施例 2
本发明实施例还提供了一种功率余量值的确定方法, 该方法对应实施例 1的功率 余量的报告方法, 当用户设备根据实施例 1的方法向基站上报 PH值时, 该基站根据 本实施例的方法确定用户上报的对应上行载波的功率余量值中, 哪个是 D2D链路的 PH值, 哪个 /哪些是蜂窝链路的 PH值。
图 10是本实施例的方法的流程图, 请参照图 10, 该方法包括:
步骤 1001 : 基站接收用户设备发送的功率余量报告消息,所述功率余量报告消息 中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值和蜂窝链路的 PH值;
步骤 1002:所述基站根据系统配置的 D2D链路的 PH值和蜂窝链路的 PH值在功 率余量报告消息中的先后顺序,确定接收到的所有 PH值是 D2D链路的 PH值还是蜂 窝链路的 PH值。
在本实施例中, 该功率余量报告消息为实施例 1所述的 PH MAC CE。
在本实施例中, 由于系统预先配置了 D2D链路的 PH值和蜂窝链路的 PH值在该 PH MAC CE中的先后顺序, 基站在接收到该 PH MAC CE, 即可根据系统配置确定 该 PH MAC CE中的所有 PH值哪些是 D2D链路的 PH值哪些是蜂窝链路的 PH值。
例如, 以图 7所示的 PH MAC CE结构为例, 当基站收到如图 7所示的 PH MAC CE时,即可根据系统配置确定该 PH MAC CE中先出现的 PH值为蜂窝链路的 PH值, 后出现的 PH值为 D2D链路的 PH值。
再例如,以图 8所示的 PH MAC CE结构为例,当基站收到如图 8所示的 PH MAC CE时, 由于基站知道 D2D链路复用在主小区的上行载波上, 即可根据系统配置确定 该主小区的上行载波对应的 PH值中, 主小区的蜂窝链路的 PH值在前, 而 D2D链路 的 PH值在后。
再例如,以图 9所示的 PH MAC CE结构为例,当基站收到如图 9所示的 PH MAC
CE时, 由于基站知道 D2D链路复用在某辅小区的上行载波上, 即可根据系统配置确 定该辅小区的上行载波对应的 PH值中, 辅小区的蜂窝链路的 PH值在前, D2D链路 的 PH值在后。
当有多个 D2D链路复用在多个小区的上行载波上时, 由于基站知道 D2D链路复 用在那几个小区的上行载波上, 即可根据系统配置确定这些小区的上行载波对应的 PH值中, 是蜂窝链路的 PH值在前, 还是 D2D链路的 PH值在前。
通过本实施例的方法, UE可以准确和 /或及时的将 D2D链路的功率余量上报给基 站, 由此, 基站可以更加灵活和有效的调度 D2D链路和蜂窝链路的资源。
实施例 3
本发明实施例还提供了一种功率余量的报告方法。 图 11 是该方法的流程图, 请 参照图 11, 该方法包括:
步骤 1101 : 用户设备在满足 PH的上报条件时, 向基站发送功率余量报告消息, 所述功率余量报告消息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路 的 PH值、 蜂窝链路的 PH值和 PH值指示信息, 其中, 所述 PH值指示信息用于指 示其对应的 PH值是 D2D链路的 PH值还是蜂窝链路的 PH值。
其中, 所述 PH值指示信息可以是一个, 也可以是两个, 还可以是多个, 本实施 例并不以此作为限制。 另外, 该 PH值指示信息的值及其所指示的 PH值的链路类型 可以是系统预先配置的, 例如, 系统预先配置该 PH指示信息通过字符 " D"表示, 且 D=l用于指示其对应的 PH值为 D2D链路的 PH值, D=0用于指示其对应的 PH 值为蜂窝链路的 PH值。
在本实施例中, 该功率余量报告消息为 PH MAC CE。 该 PH MAC CE中既包含 了 D2D链路的 PH值也包含了蜂窝链路的 PH值, 终端(也即该用户设备)允许在一 个 PH MAC CE中同时报告复用在同一载波上的 D2D链路的 PH值和蜂窝链路的 PH 值, 当 PHR触发时, 终端将在此载波对应的位置依次报告 D2D链路的 PH值和蜂窝 链路的 PH值。
与实施例 1不同的是, 在本实施例中, 该 D2D链路的 PH值和该蜂窝链路的 PH 值在该 PH MAC CE中的相对位置不是固定的, 而是由系统灵活配置的。在本实施例 中, 系统预先配置一个指示信息 (称为 PH值指示信息) 来指示其上报的某一个 PH 值的链路类型。 例如, 该指示信息可以通过 PH MAC CE中的一个预留比特 (R) 来 实现, 利用该预留比特指示其对应的 PH值是 D2D链路的 PH值还是蜂窝链路的 PH 值, 这样, D2D链路和蜂窝链路的 PH值之间顺序就可以灵活配置。
在本实施例的一个实施方式中, 上行链路只有一个载波, 在该实施方式中, PH MAC CE可以配置为图 12所示的结构。如图 12所示,在该实施方式中, PH MAC CE 中也包含了两个 PH值, 但在其中一个 PH值前面通过一个预留比特来指示该 PH值 的链路类型 (D2D链路的 PH值或者蜂窝链路的 PH值), 在图 12的实施例中, 系统 预先配置该预留比特用于指示其对应的 PH值为 D2D链路的 PH值, 并标识为 "D"。 比如, 当 D=l时, 该 PH值指示信息 "D"对应的 PH值 (也即图 12中第一行的 PH 值) 为 D2D链路的 PH值, 另外一个 PH值 (也即图 12中第二行的 PH值) 即为蜂 窝链路的 PH值; 当 D=0时, 该 PH值指示信息 "D"对应的 PH值 (也即图 12中第 一行的 PH值)为蜂窝链路的 PH值, 另外一个 PH值(也即图 12中第二行的 PH值) 即为 D2D链路的 PH值。 当然, 图 12所示的 PH MAC CE的结构只是上行链路只有 一个载波的举例说明,在上行链路只有一个载波的其他实施方式中, 也可以通过配置 其他预留比特来指示对应的 PH值的链路类型。
在本实施例的另外一个实施方式中, 上行链路有至少一个载波, 例如上行链路有 一个载波, 或者上行链路有多个载波, 则在该实施方式中, 如果 D2D链路复用在主 小区的上行载波上, 则 PH MAC CE可以配置为图 13所示的结构; 如果 D2D链路复 用在辅小区的上行载波上, 则 PH MAC CE可以配置为图 14所示的结构。
如图 13所示, 当 D2D链路复用在主小区 (PCell) 的上行载波上时, 系统可以预 先配置一个 PH值指示信息 "D"用来指示其对应的 PH值的链路类型。 如果系统预 先配置了 PH值指示信息 "D"来指示其对应的 PH值为 D2D链路的 PH值, 则用户 设备在向基站发送 PH MAC CE时, 可以以图 13所示的结构发送, 其中, 该主小区 的上行载波对应的 PH值中, 中间一个 PH值通过 ra值指示信息 "D"做了指示(比 如, D=l ), 由此可以确定中间的该 PH值为 D2D链路的 PH值。 当然, 图 13所示的 PH MAC CE的结构只是举例说明, 本实施例并不限制该 D2D链路的 PH值在该 PH MAC CE中的位置,用户设备也可以预先配置其他预留比特来指示该预留比特对应的 PH值的链路类型, 同时该 PH值指示信息不限制为使用符号 "D", 也不限制为仅能 指示 D2D链路的 PH值。例如, 其也可以通过其他符号来指示其他链路的 PH值。 同 时, 在图 13中, D2D链路的 PH值为类型 1, 但这只是举例说明, D2D链路的 PH 值也可以为其他类型。
如图 14所示, 当 D2D链路复用在辅小区 (SCelli) 的上行载波上时, 系统可以 预先配置一个 ΙΉ值指示信息 "D"用来指示其对应的 PH值的链路类型。 如果系统 预先配置了 PH值指示信息 "D"来指示其对应的 PH值为 D2D链路的 PH值, 则用 户设备在向基站发送 PH MAC CE时, 可以以图 14所示的结构发送, 其中, 该辅小 区 (SCelli) 的上行载波对应的 PH值中, 前一个 PH值通过 PH值指示信息 " D"做 了指示 (比如 D=l ), 由此可以确定前一个 PH值为 D2D 链路的 PH值, 后一个 PH 值为该辅小区的蜂窝链路的 PH值。 当然, 图 14所示的 PH MAC CE的结构只是举 例说明, 用户设备也可以预先配置其他预留比特来指示该预留比特对应的 PH值的链 路类型, 同时该 PH值指示信息不限制为使用符号 "D", 也不限制为仅能指示 D2D 链路的 PH值。 例如, 其也可以通过其他符号来指示其他链路的 PH值。 同时, 在图 14中, D2D链路的 PH值为类型 1, 但这只是举例说明, D2D链路的 PH值也可以为 其他类型。
当有多个 D2D链路复用在多个小区的上行载波上时, 由于基站知道 D2D链路复 用在那几个小区的上行载波上,即可根据每个复用了 D2D链路的上行载波对应的 PH 值指示信息" D"来判断其对应的 PH值为 D2D 链路的 PH值还是蜂窝链路的 PH值。
可选的, 在图 13和图 14所示的实施方式中, 还可以同时上报该 D2D链路的最 大发射功率, 如图 13所示的 PCMAX 或者图 14所示的 PcMAx^n, 以便基站据此进行 合理调度。 在本实施例中, 关于 PH的上报条件与实施例 1相同, 可以沿用现有的 PHR触发 条件 (也即 PH的上报条件), 然而, 为了更好的反映 D2D链路的信号特性, 也可以 对该 PHR定义新的触发条件。 例如, 将该 PH的上报条件定义为: 当 PHR禁止计时 器超时或者已经超时, 当终端有用于发送新数据的上行资源, 并且对于任何一个有 D2D链路复用的激活服务小区, 其 D2D链路的路径损耗发生了变化并超过了某一个 阈值, 则触发 PHR, 也即触发用户设备向基站发送上述功率余量报告消息。
通过本实施例的方法, UE可以准确和 /或及时的将 D2D链路的功率余量上报给基 站, 由此, 基站可以更加灵活和有效的调度 D2D链路和蜂窝链路的资源。
实施例 4
本发明实施例还提供了一种功率余量值的确定方法, 该方法对应实施例 3的功率 余量的报告方法, 当用户设备根据实施例 3的方法向基站上报 PH值时, 该基站根据 本实施例的方法确定用户上报的对应上行载波的功率余量值中, 哪个是 D2D链路的 PH值, 哪个 /哪些是蜂窝链路的 PH值。
图 15是本实施例的方法的流程图, 请参照图 15, 该方法包括:
步骤 1501 : 基站接收用户设备发送的功率余量报告消息,所述功率余量报告消息 中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值和蜂窝链路的 PH值, 以及 PH值指示信息;
步骤 1502:所述基站根据所述 PH值指示信息确定其对应的 PH值是 D2D链路的 PH值还是蜂窝链路的 PH值, 进而确定接收到的所有 PH值是 D2D链路的 PH值还 是蜂窝链路的 PH值。
其中, PH值指示信息可以是一个, 也可以是两个, 还可以是多个, 本实施例并 不以此作为限制。
在本实施例中, 该功率余量报告消息为实施例 3所述的 PH MAC CE。
在本实施例中, 由于系统预先配置了 PH值指示信息和其指示的其对应的 PH值 的链路类型, 则基站在接收到该 PH MAC CE后, 即可根据该 PH值指示信息确定其 对应的 PH值的链路类型,进而确定接收到的 PH MAC CE中的所有 PH值哪些是 D2D 链路的 PH值哪些是蜂窝链路的 PH值。
例如,以图 12所示的 PH MAC CE结构为例,当基站收到如图 12所示的 PH MAC
CE时, 即可根据该 PH MAC CE中的 PH值指示信息 "D" (比如, 当 D=l ) 确定该 PH MAC CE中该 PH值指示信息" D"对应的 PH值为 D2D链路的 PH值,该 PH MAC CE中的其他 PH值为蜂窝链路的 PH值。
再例如, 以图 13所示的 PH MAC CE结构为例, 当基站收到如图 13所示的 PH MAC CE时, 由于基站知道 D2D链路复用在蜂窝链路的主小区的上行载波上, 则该 基站即可根据该 PH MAC CE中的 PH值指示信息 "D" (比如, 当 D=l )确定该主 小区的上行载波对应的 PH值中, 该 PH值指示信息 "D"对应的 PH值为 D2D 链路 的 PH值, 该主小区的上行载波对应的 PH值中的其他 PH值为蜂窝链路的 PH值。
再例如, 以图 14所示的 PH MAC CE结构为例, 当基站收到如图 14所示的 PH MAC CE时, 由于基站知道 D2D链路复用在蜂窝链路的某辅小区的上行载波上, 则 该基站即可根据该 PH MAC CE中的 PH值指示信息 "D" (比如, 当 D=l )确定该 辅小区的上行载波对应的 PH值中, 该 PH值指示信息 "D"对应的 PH值为 D2D 链 路的 PH值, 该辅小区的上行载波对应的 PH值中的其他 PH值为蜂窝链路的 PH值。
当有多个 D2D链路复用在多个小区的上行载波上时, 由于基站知道 D2D链路复 用在那几个小区的上行载波上,即可根据每个复用了 D2D链路的上行载波对应的 PH 值指示信息" D"来判断其对应的 PH值为 D2D 链路的 PH值还是蜂窝链路的 PH值。
通过本实施例的方法, UE可以准确和 /或及时的将 D2D链路的功率余量上报给基 站, 由此, 基站可以更加灵活和有效的调度 D2D链路和蜂窝链路的资源。
实施例 5
本发明实施例还提供了一种功率余量的报告方法。 图 16是该方法的流程图, 请 参照图 16, 该方法包括:
步骤 1601 : 用户设备在满足 PH的上报条件时, 向基站发送功率余量报告消息, 所述功率余量报告消息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路 的 PH值或者蜂窝链路的 PH值和 PH值指示信息, 其中, 所述 PH值指示信息用于 指示其对应的 PH值是 D2D链路的 PH值还是蜂窝链路的 PH值。
在本实施例中,该功率余量报告消息为 PH MAC CE。终端只允许在一个 PH MAC
CE中报告复用在同一载波上的某一个链路的 PH值, 即,要么是 D2D链路的 PH值, 要么是蜂窝链路的 PH值。
在本实施例中, 系统预先配置了一个 PH值指示信息用于指示其对应的 PH值的 链路类型。 当 PHR触发时, 终端可以利用预先配置的指示信息 (称为 PH值指示信 息) 来指示 PH值的链路类型。 比如, 利用目前 PH MAC CE中的一个预留比特来指 示对应的 PH值是 D2D链路的 PH值还是蜂窝链路的 PH值, 这样, 基站就可以明确 地得知收到的 PH值对应的链路类型。
在本实施例的一个实施方式中, 上行链路只有一个载波, 在该实施方式中, PH MAC CE可以配置为图 17所示的结构。如图 17所示, 在该实施方式中, 该 PH MAC CE只包含一个 PH值, 但通过 PH值指示信息 " D"来指示该 PH值的链路类型, 其 中, 如前所述, 该 PH值指示信息 " D"是由系统预先配置的。 当上行链路只有一个 载波时, 用户设备可以以图 17所示的结构向基站发送 PH MAC CE。 当然, 图 17所 示的 PH MAC CE的结构只是上行链路只有一个载波的举例说明,在上行链路只有一 个载波的其他实施方式中,系统也可以预先配置其他预留比特来指示该预留比特对应 的 PH值的链路类型。
在本实施例的另外一个实施方式中, 上行链路有至少一个载波, 例如上行链路有 一个载波, 或者上行链路有多个载波, 则在该实施方式中, 如果 D2D链路复用在主 小区的上行载波上, 则 PH MAC CE可以配置为图 18所示的结构; 如果 D2D链路复 用在辅小区的上行载波上, 则 PH MAC CE可以配置为图 19所示的结构。
如图 18所示, 当 D2D链路复用在主小区 (PCell) 的上行载波上时, 通过 PH值 指示信息" D"来指示上报的 ΙΉ值的链路类型,例如为 D2D链路的 PH值或者为 PCell 的蜂窝链路的 PH值。图 18中主小区的蜂窝链路的 PH值有两种类型:类型 1或类型 2。 是否包括某个类型的 PH值由高层设置, 现有技术就可以解决, 在此不再赘述。 在本实施例中, 可以采用 PH值指示信息 "D"指示上报的 PH值的链路类型。 当用 户设备在向基站发送 PH MAC CE时, 可以以图 18所示的结构发送。 当然, 图 18所 示的 PH MAC CE的结构只是举例说明,系统也可以预先配置其他预留比特来指示上 报的 PH值的链路类型。 同时, 图 18中 PH值指示信息只用来指示类型 1的 PH值的 链路类型, 系统也可以通过 PH值指示信息来指示其他类型的 PH值的链路类型。
如图 19所示, 当 D2D链路复用在辅小区(SCelli) 的上行载波上时, 通过 PH值 指示信息" D"来指示上报的 ΙΉ值的链路类型,例如为 D2D链路的 PH值或者为 SCelli 的蜂窝链路的 PH值。 当用户设备在向基站发送 PH MAC CE时, 可以以图 19所示 的结构发送。 当然, 图 19所示的 PH MAC CE的结构只是举例说明, 系统也可以预 先配置其他预留比特来指示上报的 PH值的链路类型。同时, 图 19中 PH值指示信息 只用来指示类型 1的 PH值的链路类型, 系统也可以通过 PH值指示信息来指示其他 类型的 PH值的链路类型。
当有多个 D2D链路复用在多个小区的上行载波上时, 由于基站知道 D2D链路复 用在那几个小区的上行载波上,即可根据每个复用了 D2D链路的上行载波对应的 PH 值指示信息" D "来判断其对应的 PH值为 D2D 链路的 PH值还是蜂窝链路的 PH值。
可选的,在图 18和图 19所示的实施方式中, 如果上报的 PH是 D2D链路的 PH, 则还可以同时上报该 D2D链路的最大发射功率, 如图 18所示的 PCMAX,C2或者图 19 所示的 PCMAX, , 以便基站据此进行合理调度。
在本实施例中, PH的上报条件与实施例 1和实施例 3相同,可以沿用现有的 PHR 触发条件 (也即 PH的上报条件), 然而, 为了更好的反映 D2D链路的信号特性, 也 可以对该 PHR定义新的触发条件。 例如, 将该 PH的上报条件定义为: 当 PHR禁止 计时器超时或者已经超时, 当终端有用于发送新数据的上行资源, 并且对于任何一个 有 D2D链路复用的激活服务小区,其 D2D链路的路径损耗发生了变化并超过了某一 个阈值, 则触发 PHR, 也即触发用户设备向基站发送上述功率余量报告消息。
通过本实施例的方法, UE可以准确和 /或及时的将 D2D链路的功率余量上报给基 站, 由此, 基站可以更加灵活和有效的调度 D2D链路和蜂窝链路的资源。
实施例 6
本发明实施例还提供了一种功率余量值的确定方法, 该方法对应实施例 5的功率 余量的报告方法, 当用户设备根据实施例 5的方法向基站上报 PH值时, 该基站根据 本实施例的方法确定用户上报的功率余量值的链路类型。
图 20是本实施例的方法的流程图, 请参照图 20, 该方法包括:
步骤 2001 : 基站接收用户设备发送的功率余量报告消息,所述功率余量报告消息 中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值或者蜂窝链路 的 PH值和 PH值指示信息;
步骤 2002:所述基站根据所述 PH值指示信息确定该 PH值指示信息所对应的 PH 值是 D2D链路的 PH值还是蜂窝链路的 PH值。
在本实施例中, 该功率余量报告消息为实施例 5所述的 PH MAC CE。
在本实施例中, 由于系统预先配置了用于指示上报的 PH值的链路类型的 PH值 指示信息, 基站在接收到该 PH MAC CE后, 即可根据该 PH值指示信息确定其对应 的 PH值的链路类型。
例如,以图 17所示的 PH MAC CE结构为例,当基站收到如图 17所示的 PH MAC CE时, 即可根据该 PH MAC CE中的 值指示信息 "D"确定该用户设备上报的 PH值的链路类型。
再例如, 以图 18所示的 PH MAC CE结构为例, 当基站收到如图 18所示的 PH
MAC CE时,即可根据该 PH MAC CE中的 PH值指示信息" D"确定该主小区(PCell) 的上行载波对应的类型 1的 PH值的链路类型。
再例如, 以图 19所示的 PH MAC CE结构为例, 当基站收到如图 19所示的 PH MAC CE时,即可根据该 PH MAC CE中的 PH值指示信息" D"确定该辅小区(SCelli) 的上行载波对应的类型 1 的 PH值的链路类型。
当有多个 D2D链路复用在多个小区的上行载波上时, 由于基站知道 D2D链路复 用在那几个小区的上行载波上,即可根据每个复用了 D2D链路的上行载波对应的 PH 值指示信息" D"来判断其对应的 PH值为 D2D 链路的 PH值还是蜂窝链路的 PH值。
通过本实施例的方法, UE可以准确和 /或及时的将 D2D链路的功率余量上报给基 站, 由此, 基站可以更加灵活和有效的调度 D2D链路和蜂窝链路的资源。 本发明实 施例还提供了一种用户设备, 如下面的实施例 7所述, 由于该用户设备解决问题的原 理与实施例 1的方法类型, 因此其具体的实施可以参照实施例 1的方法的实施, 重复 之处不再赘述。
实施例 7
本发明实施例提供了一种用户设备。 图 21 是该用户设备的组成示意图, 请参照 图 21, 该用户设备包括:
发送单元 211, 其在满足 PH的上报条件时, 向基站发送功率余量报告消息, 所 述功率余量报告消息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值和蜂窝链路的 PH值, 其中, 所述 D2D链路的 PH值和所述蜂窝链路的 PH值 在所述功率余量报告消息中的顺序是根据系统配置预先设定的。
其中, 所述功率余量报告消息为 PH MAC CE。
其中, 所述 PH的上报条件为:
PH 禁止计时器超时或者已经超时, 所述用户设备有用于发送新数据的上行资 源, 并且对于任何一个有 D2D链路复用的激活服务小区, 其 D2D链路的路径损耗发 生了变化并超过了预先设定的阈值。
通过本实施例的用户设备, 可以准确和 /或及时的将 D2D链路的功率余量上报给 基站, 由此, 基站可以更加灵活和有效的调度 D2D链路和蜂窝链路的资源。
本发明实施例还提供了一种基站, 如下面的实施例 8所述, 由于该基站解决问题 的原理与实施例 2的方法类型, 因此其具体的实施可以参照实施例 2的方法的实施, 重复之处不再赘述。
实施例 8
本发明实施例还提供了一种基站。 图 22是该基站的组成示意图, 请参照图 22, 该基站包括:
接收单元 221, 其接收用户设备发送的功率余量报告消息, 所述功率余量报告消 息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值和蜂窝链路 的 PH值;
确定单元 222, 其根据系统配置的 D2D链路的 PH值和蜂窝链路的 PH值在功率 余量报告消息中的先后顺序,确定接收到的所有 ΙΉ值是 D2D链路的 PH值还是蜂窝 链路的 PH值。
其中, 所述功率余量报告消息为 PH MAC CE。
通过本实施例的基站, 可以更加灵活和有效的调度 D2D链路和蜂窝链路的资源。 本发明实施例还提供了一种用户设备, 如下面的实施例 9所述, 由于该用户设备 解决问题的原理与实施例 3的方法类型,因此其具体的实施可以参照实施例 3的方法 的实施, 重复之处不再赘述。
实施例 9
本发明实施例提供了一种用户设备。 图 23是该用户设备的组成示意图, 请参照 图 23, 该用户设备包括:
发送单元 231, 其在满足 PH的上报条件时, 向基站发送功率余量报告消息, 所 述功率余量报告消息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值、 蜂窝链路的 PH值和 PH值指示信息, 其中, 所述 PH值指示信息用于指示其 对应的 PH值是 D2D链路的 PH值还是蜂窝链路的 PH值。
其中, 所述功率余量报告消息为 PH MAC CE。
其中, 所述 PH的上报条件为: PH 禁止计时器超时或者已经超时, 所述用户设备有用于发送新数据的上行资 源, 并且对于任何一个有 D2D链路复用的激活服务小区, 其 D2D链路的路径损耗发 生了变化并超过了预先设定的阈值。
通过本实施例的用户设备, 可以准确和 /或及时的将 D2D链路的功率余量上报给 基站, 由此, 基站可以更加灵活和有效的调度 D2D链路和蜂窝链路的资源。
本发明实施例还提供了一种基站, 如下面的实施例 10所述, 由于该基站解决问 题的原理与实施例 4的方法类型,因此其具体的实施可以参照实施例 4的方法的实施, 重复之处不再赘述。
实施例 10
本发明实施例提供了一种基站。 图 24是该基站的组成示意图, 请参照图 24, 该 基站包括:
接收单元 241, 其接收用户设备发送的功率余量报告消息, 所述功率余量报告消 息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值和蜂窝链路 的 PH值以及 PH值指示信息;
确定单元 242,其根据所述 PH值指示信息确定该 PH值指示信息对应的 PH值是
D2D链路的 PH值还是蜂窝链路的 PH值,进而确定接收到的所有 PH值是 D2D链路 的 PH值还是蜂窝链路的 PH值。
其中, 所述功率余量报告消息为 PH MAC CE。
通过本实施例的基站, 可以更加灵活和有效的调度 D2D链路和蜂窝链路的资源。 本发明实施例还提供了一种用户设备, 如下面的实施例 11 所述, 由于该用户设 备解决问题的原理与实施例 5的方法类型,因此其具体的实施可以参照实施例 5的方 法的实施, 重复之处不再赘述。
实施例 11
本发明实施例提供了一种用户设备。 图 25是该用户设备的组成示意图, 请参照 图 25, 该用户设备包括:
发送单元 251, 其在满足 PH的上报条件时, 向基站发送功率余量报告消息, 所 述功率余量报告消息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值或者蜂窝链路的 ΙΉ值, 以及 PH值指示信息, 其中, 所述 PH值指示信息用于 指示该 PH值指示信息所对应的 PH值是 D2D链路的 PH值还是蜂窝链路的 PH值。 其中, 所述功率余量报告消息为 PH MAC CE。
其中, 所述 PH的上报条件为:
PH 禁止计时器超时或者已经超时, 所述用户设备有用于发送新数据的上行资 源, 并且对于任何一个有 D2D链路复用的激活服务小区, 其 D2D链路的路径损耗发 生了变化并超过了预先设定的阈值。
通过本实施例的用户设备, 可以准确和 /或及时的将 D2D链路的功率余量上报给 基站, 由此, 基站可以更加灵活和有效的调度 D2D链路和蜂窝链路的资源。
本发明实施例还提供了一种基站, 如下面的实施例 12所述, 由于该基站解决问 题的原理与实施例 6的方法类型,因此其具体的实施可以参照实施例 6的方法的实施, 重复之处不再赘述。
实施例 12
本发明实施例提供了一种基站。 图 26是该基站的组成示意图, 请参照图 26, 该 基站包括:
接收单元 261, 其接收用户设备发送的功率余量报告消息, 所述功率余量报告消 息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值或者蜂窝链 路的 PH值, 和 PH值指示信息;
确定单元 262,其根据所述 PH值指示信息确定该 PH值指示信息对应的 PH值是 D2D链路的 PH值还是蜂窝链路的 PH值。
其中, 所述功率余量报告消息为 PH MAC CE。
通过本实施例的基站, 可以更加灵活和有效的调度 D2D链路和蜂窝链路的资源。 本发明实施例还提供了一种通信系统, 其中, 所述通信系统包括实施例 7所述的 用户设备和实施例 8所述的基站, 或者, 所述通信系统包括实施例 9所述的用户设备 和实施例 10所述的基站,或者所述通信系统包括实施例 11所述的用户设备和实施例 12所述的基站。
本发明实施例还提供了一种计算机可读程序, 其中, 当在基站中执行该程序时, 该程序使得计算机在所述基站中执行实施例 2、 4或 6所述的功率余量值确定方法。
本发明实施例还提供了一种存储有计算机可读程序的存储介质,其中, 该计算机 可读程序使得计算机在基站中执行实施例 2、 4、 或 6所述的功率余量值确定方法。
本发明实施例还提供了一种计算机可读程序, 其中当在终端设备中执行该程序 时, 该程序使得计算机在所述终端设备中执行实施例 1、 3或 5所述的功率余量的报 告方法。
本发明实施例还提供了一种存储有计算机可读程序的存储介质,其中该计算机可 读程序使得计算机在终端设备中执行实施例 1、 3、 或 5所述的功率余量的报告方法。
本发明以上的装置和方法可以由硬件实现, 也可以由硬件结合软件实现。本发明 涉及这样的计算机可读程序, 当该程序被逻辑部件所执行时, 能够使该逻辑部件实现 上文所述的装置或构成部件, 或使该逻辑部件实现上文所述的各种方法或步骤。逻辑 部件例如现场可编程逻辑部件、微处理器、计算机中使用的处理器等。本发明还涉及 用于存储以上程序的存储介质, 如硬盘、 磁盘、 光盘、 DVD、 flash存储器等。
以上结合具体的实施方式对本发明进行了描述,但本领域技术人员应该清楚,这 些描述都是示例性的, 并不是对本发明保护范围的限制。本领域技术人员可以根据本 发明的精神和原理对本发明做出各种变型和修改,这些变型和修改也在本发明的范围 内。

Claims

权 利 要 求 书
1、 一种功率余量的报告方法, 其中, 所述方法包括:
用户设备在满足 PH的上报条件时, 向基站发送功率余量报告消息, 所述功率余 量报告消息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值和 蜂窝链路的 PH值, 其中, 所述 D2D链路的 PH值和所述蜂窝链路的 PH值在所述功 率余量报告消息中的顺序是根据系统配置预先设定的。
2、 一种功率余量的报告方法, 其中, 所述方法包括:
用户设备在满足 PH的上报条件时, 向基站发送功率余量报告消息, 所述功率余 量报告消息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值、 蜂窝链路的 PH值和 PH值指示信息, 其中, 所述 PH值指示信息用于指示其对应的 PH值是 D2D链路的 PH值还是蜂窝链路的 PH值。
3、 一种功率余量的报告方法, 其中, 所述方法包括:
用户设备在满足 PH的上报条件时, 向基站发送功率余量报告消息, 所述功率余 量报告消息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值或 者蜂窝链路的 PH值和 PH值指示信息, 其中, 所述 PH值指示信息用于指示其对应 的 PH值是 D2D链路的 PH值还是蜂窝链路的 PH值。
4、根据权利要求 1-3任一项所述的方法,其中,所述功率余量报告消息为 PH MAC
CE。
5、 根据权利要求 1-3任一项所述的方法, 其中, 所述 PH的上报条件为:
PH 禁止计时器超时或者已经超时, 所述用户设备有用于发送新数据的上行资 源, 并且对于任何一个有 D2D链路复用的激活服务小区, 其 D2D链路的路径损耗发 生了变化并超过了预先设定的阈值。
6、 一种功率余量值确定方法, 其中, 所述方法包括:
基站接收用户设备发送的功率余量报告消息, 所述功率余量报告消息中对应于复 用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值和蜂窝链路的 PH值; 所述基站根据系统配置的 D2D链路的 PH值和蜂窝链路的 PH值在功率余量报告 消息中的先后顺序, 确定接收到的所有 PH值是 D2D链路的 PH值还是蜂窝链路的
PH值。
7、 一种功率余量值确定方法, 其中, 所述方法包括:
基站接收用户设备发送的功率余量报告消息, 所述功率余量报告消息中对应于复 用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值和蜂窝链路的 值和 PH 值指示信息;
所述基站根据所述 PH值指示信息确定其对应的 PH值是 D2D链路的 PH值还是 蜂窝链路的 PH值, 进而确定接收到的所有 PH值是 D2D链路的 PH值还是蜂窝链路 的 PH值。
8、 一种功率余量值确定方法, 其中, 所述方法包括:
基站接收用户设备发送的功率余量报告消息, 所述功率余量报告消息中对应于复 用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值或者蜂窝链路的 PH值和 PH值指示信息;
所述基站根据所述 PH值指示信息确定其对应的 PH值是 D2D链路的 PH值还是 蜂窝链路的 PH值。
9、 一种用户设备, 其中, 所述用户设备包括:
发送单元, 其在满足 PH的上报条件时, 向基站发送功率余量报告消息, 所述功 率余量报告消息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH 值和蜂窝链路的 PH值, 其中, 所述 D2D链路的 PH值和所述蜂窝链路的 PH值在所 述功率余量报告消息中的顺序是根据系统配置预先设定的。
10、 一种用户设备, 其中, 所述用户设备包括:
发送单元, 其在满足 PH的上报条件时, 向基站发送功率余量报告消息, 所述功 率余量报告消息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH 值、 蜂窝链路的 PH值和 PH值指示信息, 其中, 所述 PH值指示信息用于指示其对 应的 PH值是 D2D链路的 PH值还是蜂窝链路的 PH值。
11、 一种用户设备, 其中, 所述用户设备包括:
发送单元, 其在满足 PH的上报条件时, 向基站发送功率余量报告消息, 所述功 率余量报告消息中对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH 值或蜂窝链路的 PH值和 PH值指示信息, 其中, 所述 PH值指示信息用于指示其对 应的 PH值是 D2D链路的 PH值还是蜂窝链路的 PH值。
12、根据权利要求 9-11任一项所述的用户设备, 其中, 所述功率余量报告消息为 PH MAC CE。
13、 根据权利要求 9-11任一项所述的用户设备, 其中, 所述 PH的上报条件为: PH 禁止计时器超时或者已经超时, 所述用户设备有用于发送新数据的上行资 源, 并且对于任何一个有 D2D链路复用的激活服务小区, 其 D2D链路的路径损耗发 生了变化并超过了预先设定的阈值。
14、 一种基站, 其中, 所述基站包括:
接收单元, 其接收用户设备发送的功率余量报告消息, 所述功率余量报告消息中 对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值和蜂窝链路的 PH 值;
确定单元, 其根据系统配置的 D2D链路的 PH值和蜂窝链路的 PH值在功率余量 报告消息中的先后顺序,确定接收到的所有 PH值是 D2D链路的 PH值还是蜂窝链路 的 PH值。
15、 一种基站, 其中, 所述基站包括:
接收单元, 其接收用户设备发送的功率余量报告消息, 所述功率余量报告消息中 对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值和蜂窝链路的 PH 值和 PH值指示信息;
确定单元, 其根据所述 PH值指示信息确定其对应的 PH值是 D2D链路的 PH值 还是蜂窝链路的 PH值, 进而确定接收到的所有 PH值是 D2D链路的 PH值还是蜂窝 链路的 PH值。
16、 一种基站, 其中, 所述基站包括:
接收单元, 其接收用户设备发送的功率余量报告消息, 所述功率余量报告消息中 对应于复用了 D2D链路的载波的相关信息中包含 D2D链路的 PH值或蜂窝链路的 PH 值和 PH值指示信息;
确定单元, 其根据所述 PH值指示信息确定其对应的 PH值是 D2D链路的 PH值 还是蜂窝链路的 PH值。
17、 一种通信系统, 其中, 所述通信系统包括权利要求 9、 12-13任一项所述的用 户设备以及权利要求 14所述的基站, 或者所述通信系统包括权利要求 10、 12-13任 一项所述的用户设备以及权利要求 15所述的基站, 或者所述通信系统包括权利要求 11-13任一项所述的用户设备以及权利要求 16所述的基站。
18、 一种计算机可读程序, 其中, 当在基站中执行该程序时, 该程序使得计算机 在所述基站中执行权利要求 6-8任一项所述的功率余量值确定方法。
19、 一种存储有计算机可读程序的存储介质, 其中, 该计算机可读程序使得计算 机在基站中执行权利要求 6-8任一项所述的功率余量值确定方法。
20、 一种计算机可读程序, 其中当在终端设备中执行该程序时, 该程序使得计算 机在所述终端设备中执行权利要求 1-5任一项所述的功率余量的报告方法。
21、一种存储有计算机可读程序的存储介质,其中该计算机可读程序使得计算机 在终端设备中执行权利要求 1-5任一项所述的功率余量的报告方法。
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CN104871611A (zh) 2015-08-26
US20150327187A1 (en) 2015-11-12
KR20150106942A (ko) 2015-09-22

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