WO2016004828A1 - 基站、用户设备及相关方法 - Google Patents

基站、用户设备及相关方法 Download PDF

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Publication number
WO2016004828A1
WO2016004828A1 PCT/CN2015/083044 CN2015083044W WO2016004828A1 WO 2016004828 A1 WO2016004828 A1 WO 2016004828A1 CN 2015083044 W CN2015083044 W CN 2015083044W WO 2016004828 A1 WO2016004828 A1 WO 2016004828A1
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Prior art keywords
time window
data
transmission
index
information
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PCT/CN2015/083044
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English (en)
French (fr)
Inventor
蒋琦
刘仁茂
沈兴亚
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夏普株式会社
蒋琦
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Application filed by 夏普株式会社, 蒋琦 filed Critical 夏普株式会社
Priority to US15/323,124 priority Critical patent/US10178658B2/en
Priority to EP15819633.7A priority patent/EP3169123B1/en
Priority to JP2016575923A priority patent/JP6691875B2/ja
Publication of WO2016004828A1 publication Critical patent/WO2016004828A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • 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
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a base station, a user equipment, and related methods.
  • Modern wireless mobile communication systems present two distinctive features.
  • One is broadband high speed.
  • the fourth generation wireless mobile communication system has a bandwidth of up to 100 MHz and a downlink rate of up to 1 Gbps.
  • the second is mobile internet, which promotes mobile Internet access and mobile video on demand. , emerging services such as online navigation.
  • These two characteristics put forward high requirements for wireless mobile communication technology, including: ultra-high-rate wireless transmission, inter-region interference suppression, reliable transmission of signals in mobile, distributed/centralized signal processing, and so on.
  • 4G fourth generation
  • 5G fifth generation
  • the 3rd Generation Partnership Project (3GPP) organization discussed and adopted the device-to-device (D2D) communication technology as the key technology of the enhanced fourth-generation wireless mobile communication system at the 58th plenary meeting.
  • 3GPP 3rd Generation Partnership Project
  • D2D technology can realize local communication or peer-to-peer peer-to-peer communication without accessing the core network.
  • the transmission mode using D2D technology has a very positive effect on reducing the load on the base station and prolonging the battery life of the mobile terminal.
  • the scenario of the D2D user equipment can be divided into: network coverage, no network coverage, and partial network coverage.
  • the scenario in which part of the network coverage refers to the case of a D2D user equipment that includes network coverage and no network coverage.
  • 3GPP defines the use of a physical downlink control channel (PDCCH) and an enhanced physical downlink control channel (EPDCCH) to transmit D2D scheduling allocation (SA) and D2D data (DATA) correspondence.
  • D2D authorization information Grant
  • the D2D user equipment may send corresponding D2D scheduling allocation and D2D data to another D2D UE according to the authorization information.
  • the UE does not know which resources (time-frequency resources) should be sent on the D2D scheduling allocation and D2D data.
  • UE User Equipment
  • a method in a base station comprising: transmitting resource configuration information to a UE, wherein the resource configuration information includes: a transmission pattern index, indicating that a transmission pattern candidate used by the UE is An index in all transmission pattern candidate sets for D2D data transmission within a D2D data time window, scheduling allocation time window information, indicating a size of a scheduling allocation time window for transmitting D2D scheduling assignments by the UE, and data time Window information indicating the size of the time window for transmitting the D2D data by the UE.
  • the resource configuration information includes: a transmission pattern index, indicating that a transmission pattern candidate used by the UE is An index in all transmission pattern candidate sets for D2D data transmission within a D2D data time window, scheduling allocation time window information, indicating a size of a scheduling allocation time window for transmitting D2D scheduling assignments by the UE, and data time Window information indicating the size of the time window for transmitting the D2D data by the UE.
  • the transmission pattern index, the scheduling allocation time window information, and the data time window information are carried by the radio resource control RRC signaling.
  • a base station comprising: a sending unit, configured to send resource configuration information to a UE, where the resource configuration information includes: a transport pattern index, used to indicate that a transport pattern candidate used by the UE is An index in all transmission pattern candidate sets for D2D data transmission within a D2D data time window, scheduling allocation time window information, indicating a size of a scheduling allocation time window for transmitting D2D scheduling assignments by the UE, and data time Window information indicating the size of the time window for transmitting the D2D data by the UE.
  • the resource configuration information includes: a transport pattern index, used to indicate that a transport pattern candidate used by the UE is An index in all transmission pattern candidate sets for D2D data transmission within a D2D data time window, scheduling allocation time window information, indicating a size of a scheduling allocation time window for transmitting D2D scheduling assignments by the UE, and data time Window information indicating the size of the time window for transmitting the D2D data by the UE.
  • Embodiments of the method of the above first aspect are also applicable to a base station.
  • a method in a user equipment UE comprising: receiving resource configuration information from a base station, wherein the resource configuration information includes: a transmission pattern index, used to indicate a transmission pattern used by the UE An index of candidates in all transport pattern candidate sets for D2D data transmission within a D2D data time window, scheduling allocated time window information, indicating a size of a scheduling allocation time window for transmitting D2D scheduling assignments by the UE, and Data time window information indicating the size of the time window for transmitting the D2D data by the UE.
  • the resource configuration information includes: a transmission pattern index, used to indicate a transmission pattern used by the UE An index of candidates in all transport pattern candidate sets for D2D data transmission within a D2D data time window, scheduling allocated time window information, indicating a size of a scheduling allocation time window for transmitting D2D scheduling assignments by the UE, and Data time window information indicating the size of the time window for transmitting the D2D data by the UE.
  • the transmission pattern index, the scheduling allocation time window information, and the data time window information are carried by the radio resource control RRC signaling.
  • a user equipment comprising: a receiving unit, configured to receive resource configuration information from a base station, where the resource configuration information includes: a transmission pattern index, used to indicate a transmission pattern used by the UE An index of candidates in all transport pattern candidate sets for D2D data transmission within a D2D data time window, scheduling allocated time window information, indicating a size of a scheduling allocation time window for transmitting D2D scheduling assignments by the UE, and Data time window information indicating the size of the time window for transmitting the D2D data by the UE.
  • the resource configuration information includes: a transmission pattern index, used to indicate a transmission pattern used by the UE An index of candidates in all transport pattern candidate sets for D2D data transmission within a D2D data time window, scheduling allocated time window information, indicating a size of a scheduling allocation time window for transmitting D2D scheduling assignments by the UE, and Data time window information indicating the size of the time window for transmitting the D2D data by the UE.
  • Embodiments of the method in the above third aspect are also applicable to the UE.
  • the base station transmits resource configuration information to the UE.
  • the resource configuration information includes: a transport pattern index, used to indicate an index of a transport pattern candidate used by the UE in all transport pattern candidate sets, for performing D2D data transmission in a D2D data time window, and scheduling an allocation time window.
  • Information indicating a size of a scheduling allocation time window for transmitting a D2D scheduling assignment by the UE and data time window information indicating a size of a time window for transmitting the D2D data by the UE.
  • the present invention provides a scheme for controlling resources used by a UE to transmit D2D scheduling assignments and D2D data.
  • FIG. 1 is a block diagram of a base station according to an embodiment of the present invention.
  • FIG. 2 is a flow chart of a method in a base station according to an embodiment of the present invention.
  • FIG. 3 is a block diagram of a UE in accordance with an embodiment of the present invention.
  • FIG. 4 is a flow chart of a method in a UE in accordance with an embodiment of the present invention.
  • FIG. 1 shows a block diagram of a base station 100 in accordance with an embodiment of the present invention.
  • the base station 100 includes a transmitting unit 110.
  • base station 100 also includes other functional units necessary to implement its functions, such as various processors, memories, and the like.
  • the transmitting unit 110 transmits resource configuration information to the UE.
  • the resource configuration information includes: a transport pattern index, used to indicate an index of the transport pattern candidate used by the UE in all transport pattern candidate sets, for performing D2D data transmission in a D2D data time window, and scheduling and allocating time window information, Indicates a size of a scheduling allocation time window for transmitting a D2D scheduling assignment by the UE, and data time window information indicating a size of a time window for transmitting the D2D data by the UE.
  • the transmission pattern index, the scheduling allocation time window information, and the data time window information are carried by the radio resource control RRC signaling.
  • the size of the scheduling allocation time window may be 10 ms, 20 ms or 40 ms (or equivalently, 10, 20 or 40 subframes).
  • the data time window information indicates a size of a data time window for transmitting, by the UE, one or more Media Access Control MAC Protocol Data Unit PDUs carrying D2D data.
  • the data time window may be 40 ms, 80 ms, 120 ms, 160 ms, 240 ms or 320 ms (or equivalently, 40, 80, 120, 160, 240 or 320 subframes).
  • the base station 100 further includes: a resource allocation unit that allocates resources for transmitting the device-to-device D2D scheduling allocation and D2D data by the user equipment UE.
  • the transmitting unit 110 transmits resource configuration information to the UE, the resource configuration information indicating resources allocated by the resource allocation unit.
  • the resource configuration information includes: A resource allocation indicator indicating resources for transmitting D2D scheduling assignments by the UE, and a data resource indication indicating resources for transmitting, by the UE, D2D data associated with the D2D scheduling assignment.
  • the scheduling allocation resource indication includes: scheduling allocation time window information indicating a size of a scheduling allocation time window for transmitting the D2D scheduling allocation by the UE.
  • the data resource indication further includes: data amount indication information indicating the number of MAC PDUs to be used by the UE to transmit in the data time window.
  • the number is 1, 2, 4 or 8.
  • This number can be explicitly indicated by a base station (e.g., an evolved NodeB eNB).
  • the number may not be explicitly indicated by the base station, but may be implicitly indicated by the size of the data time window. That is, if the size of the data time window and the number of MAC PDUs may have a predetermined relationship known to the UE. For example, when the data time window information received by the UE indicates a data time window of 80 ms, the UE may determine that the number of MAC PDUs is 2.
  • the data resource indication further includes: transmission interval information indicating an interval between adjacent MAC PDUs transmitted by the UE in the data time window.
  • the interval may be 20ms, 40ms, 80ms or 160ms (or equivalently, 20, 40, 80 or 160 subframes).
  • the data resource indication further includes: transmission quantity information indicating the number of subframes occupied by each MAC PDU transmitted by the UE in the data time window.
  • the number of subframes may be 1, 2, 4 or 8.
  • the data resource indication further includes: transmission pattern information indicating a subframe position occupied by each MAC PDU transmitted by the UE in the data time window.
  • the transmission pattern information can be represented by a bitmap, as described below.
  • the scheduling allocation time window information, the data time window information, the data amount indication information, the transmission interval information, the transmission quantity information, and the transmission pattern information are carried by the radio resource control RRC signaling.
  • the transmission interval information includes a transmission interval candidate set including one or more transmission interval candidates, wherein each transmission interval candidate indicates an interval between adjacent MAC PDUs transmitted by the UE in a data time window.
  • the transmission interval candidate set may contain 4 transmission interval candidates, such as ⁇ 20, 40, 80, 120 ⁇ (ms) or ⁇ 40, 80, 120, 160 ⁇ (ms).
  • the transmission interval candidate set may include 2 transmission interval candidates, such as ⁇ 10, 20 ⁇ (ms), ⁇ 20, 40 ⁇ (ms), ⁇ 40, 80 ⁇ (ms) or ⁇ 80, 120 ⁇ ( Ms).
  • Each transmission interval candidate in the transmission interval candidate set may be assigned an index.
  • the transmission interval information also includes: A transmission interval index indicating an index of a transmission interval candidate to be used by the UE in a transmission interval candidate set.
  • the transmission quantity information includes: a transmission quantity candidate set including one or more transmission quantity candidates, wherein each transmission quantity candidate indicates a subframe occupied by each MAC PDU transmitted by the UE in a data time window number.
  • the number of transmission candidate sets may contain 4 transmission number candidates, such as ⁇ 1, 2, 4, 8 ⁇ .
  • Each of the number of transmission candidates in the set of transmission numbers may be assigned an index.
  • the transmission quantity information further includes a transmission quantity index indicating an index of the number of transmission candidates to be used by the UE in the transmission number candidate set.
  • the transmission pattern information comprises: a transmission pattern candidate set comprising one or more transmission pattern candidates, wherein each transmission pattern candidate indicates a subframe occupied by each MAC PDU transmitted by the UE in a data time window position.
  • the transport pattern candidate set may contain 16 transport pattern candidates.
  • each transmission pattern candidate may be represented by a 40-bit bitmap, where 40 bits represent 40 ms (or 40 subframes), and each "1" bit represents the subframe position occupied by the MAC PDU.
  • Each row in Table 1 below represents a transmission pattern candidate:
  • Each of the transmission pattern candidate sets in the transmission pattern candidate set may be assigned an index.
  • the transmission pattern information further includes a transmission pattern index indicating an index of the transmission pattern candidate to be used by the UE in the transmission pattern candidate set.
  • Each of the transmission interval index, the transmission number index, and the transmission pattern index may be represented by an integer, for example, an integer “1” indicates the first candidate in the corresponding set, and "2" indicates the second candidate in the corresponding set, And so on.
  • each of the transmission interval index, the transmission number index, and the transmission pattern index may be represented by one or more bits, for example, bits “0", “00”, “0000” indicate the first in the corresponding set Candidates, "1", “01", “0001” represent the second candidate in the corresponding set, and so on.
  • the scheduling allocation time window information, the data time window information, the data volume indication information, the transmission interval candidate set, the transmission number candidate set, and the transmission pattern candidate set are carried by the radio resource control RRC signaling.
  • the transmission interval index, the transmission number index, and the transmission pattern index are carried by information bits in the downlink control information DCI format 0.
  • the transmission interval index, the transmission number index, and the transmission pattern index may be transmitted to the UE through PDCCH or EPDCCH signaling of DCI format 0.
  • all or part of the CIF bits may be carried by the tag for Format 0/Format 1A in Format 0, NDI, CQI Request, SRS Request.
  • Method 200 is a flow diagram of a method 200 in a base station in accordance with an embodiment of the present invention. It should be noted that all of the features described in connection with the embodiments of base station 100 described above are also applicable to the following method embodiments. Method 200 can be performed by base station 100 described above and includes the following steps.
  • resource configuration information is transmitted to the UE.
  • the resource configuration information includes: a transport pattern index, used to indicate an index of the transport pattern candidate used by the UE in all transport pattern candidate sets for D2D data transmission in a D2D data time window, Scheduling allocation time window information indicating a size of a scheduling allocation time window for transmitting a D2D scheduling assignment by the UE, and data time window information indicating a size of a time window for transmitting the D2D data by the UE.
  • the transmission pattern index, the scheduling allocation time window information, and the data time window information are carried by the radio resource control RRC signaling.
  • the method 200 optionally further includes allocating resources for transmitting device-to-device D2D scheduling assignments and D2D data by the user equipment UE.
  • step S210 resource configuration information is transmitted to the UE, the resource configuration information indicating the allocated resources.
  • the resource configuration information includes: a scheduling allocation resource indication, indicating a resource for transmitting a D2D scheduling allocation by the UE, and a data resource indication indicating a resource for transmitting, by the UE, D2D data associated with the D2D scheduling allocation.
  • the scheduling the allocation resource indication comprises: scheduling allocation time window information indicating a size of a scheduling allocation time window for transmitting the D2D scheduling assignment by the UE.
  • the data resource indication includes: data time window information indicating a size of a data time window for transmitting, by the UE, one or more medium access control MAC protocol data unit PDUs carrying D2D data; Information indicating a number of MAC PDUs to be transmitted by the UE in a data time window; transmission interval information indicating an interval between adjacent MAC PDUs transmitted by the UE in a data time window; transmission quantity information indicating indication by the UE The number of subframes occupied by each MAC PDU transmitted in the data time window; and transmission pattern information indicating the subframe position occupied by each MAC PDU transmitted by the UE in the data time window.
  • the scheduling allocation time window information, the data time window information, the data amount indication information, the transmission interval information, the transmission quantity information, and the transmission pattern information are carried by the radio resource control RRC signaling.
  • the transmission interval information includes: a transmission interval candidate set including one or more transmission interval candidates, wherein each transmission interval candidate indicates an interval between adjacent MAC PDUs transmitted by the UE in a data time window And a transmission interval index indicating an index of a transmission interval candidate to be used by the UE in the transmission interval candidate set.
  • the transmission quantity information includes: a transmission quantity candidate set including one or more transmission quantity candidates, wherein each transmission quantity candidate indicates each MAC PDU transmitted by the UE in a data time window. The number of occupied subframes; and a transmission number index indicating an index of the number of transmission candidates to be used by the UE in the transmission number candidate set.
  • the transmission pattern information includes: a transmission pattern candidate set including one or more transmission pattern candidates, wherein each transmission pattern candidate indicates a subframe position occupied by each MAC PDU transmitted by the UE in a data time window; and transmission A pattern index indicating an index of a transmission pattern candidate to be used by the UE in the transmission pattern candidate set.
  • the scheduling allocation time window information, the data time window information, the data volume indication information, the transmission interval candidate set, the transmission number candidate set, and the transmission pattern candidate set are carried by the radio resource control RRC signaling.
  • the transmission interval index, the transmission number index, and the transmission pattern index are carried by information bits in the downlink control information DCI format 0.
  • FIG. 3 shows a block diagram of a UE 300 in accordance with an embodiment of the present invention.
  • the UE 300 includes a receiving unit 310.
  • the UE 300 also includes other functional units necessary to implement its functions, such as various processors, memories, and the like.
  • the receiving unit 310 receives resource configuration information from the base station.
  • the resource configuration information includes: a transport pattern index, used to indicate an index of the transport pattern candidate used by the UE in all transport pattern candidate sets, for performing D2D data transmission in a D2D data time window, and scheduling and allocating time window information, Indicates a size of a scheduling allocation time window for transmitting a D2D scheduling assignment by the UE, and data time window information indicating a size of a time window for transmitting the D2D data by the UE.
  • the transmission pattern index, the scheduling allocation time window information, and the data time window information are carried by the radio resource control RRC signaling.
  • receiving unit 310 receives resource configuration information from a base station, the resource configuration information instructing the base station to allocate resources for transmitting device-to-device D2D scheduling assignments and D2D data by the UE.
  • the resource configuration information includes: a scheduling allocation resource indication, indicating a resource for transmitting a D2D scheduling allocation by the UE, and a data resource indication indicating a resource for transmitting, by the UE, D2D data associated with the D2D scheduling allocation.
  • the UE 300 further includes: a sending unit, configured to send the D2D scheduling allocation and the D2D data according to the resource indicated by the resource configuration information.
  • a sending unit configured to send the D2D scheduling allocation and the D2D data according to the resource indicated by the resource configuration information.
  • the scheduling the allocation resource indication comprises: scheduling allocation time window information indicating a size of a scheduling allocation time window for transmitting the D2D scheduling assignment by the UE.
  • the data resource indication includes: data time window information indicating a size of a data time window for transmitting, by the UE, one or more medium access control MAC protocol data unit PDUs carrying D2D data; Information indicating a number of MAC PDUs to be transmitted by the UE in a data time window; transmission interval information indicating an interval between adjacent MAC PDUs transmitted by the UE in a data time window; transmission quantity information indicating indication by the UE The number of subframes occupied by each MAC PDU transmitted in the data time window; and transmission pattern information indicating the subframe position occupied by each MAC PDU transmitted by the UE in the data time window.
  • the scheduling allocation time window information, the data time window information, the data amount indication information, the transmission interval information, the transmission quantity information, and the transmission pattern information are carried by the radio resource control RRC signaling.
  • the transmission interval information includes: a transmission interval candidate set including one or more transmission interval candidates, wherein each transmission interval candidate indicates an interval between adjacent MAC PDUs transmitted by the UE in a data time window And a transmission interval index indicating an index of a transmission interval candidate to be used by the UE in the transmission interval candidate set.
  • the transmission quantity information includes: a transmission quantity candidate set including one or more transmission quantity candidates, wherein each transmission quantity candidate indicates a number of subframes occupied by each MAC PDU transmitted by the UE in a data time window; and transmission A quantity index indicating an index of the number of transmission candidates to be used by the UE in the set of transmission number candidates.
  • the transmission pattern information includes: a transmission pattern candidate set including one or more transmission pattern candidates, wherein each transmission pattern candidate indicates a subframe position occupied by each MAC PDU transmitted by the UE in a data time window; and transmission A pattern index indicating an index of a transmission pattern candidate to be used by the UE in the transmission pattern candidate set.
  • the scheduling allocation time window information, the data time window information, the data volume indication information, the transmission interval candidate set, the transmission number candidate set, and the transmission pattern candidate set are carried by the radio resource control RRC signaling.
  • the transmission interval index, the transmission number index, and the transmission pattern index are carried by information bits in the downlink control information DCI format 0.
  • Method 400 is a flow diagram of a method 400 in a UE in accordance with an embodiment of the present invention. It should be noted that all of the features described in connection with the embodiments of UE 300 described above are also applicable to the following method embodiments. Method 400 can be performed by UE 300 described above and includes the following steps.
  • resource configuration information is received from the base station.
  • the resource configuration information includes: a transport pattern index, used to indicate an index of the transport pattern candidate used by the UE in all transport pattern candidate sets, for performing D2D data transmission in a D2D data time window, and scheduling and allocating time window information, Indicates a size of a scheduling allocation time window for transmitting a D2D scheduling assignment by the UE, and data time window information indicating a size of a time window for transmitting the D2D data by the UE.
  • the transmission pattern index, the scheduling allocation time window information, and the data time window information are carried by the radio resource control RRC signaling.
  • step S410 resource configuration information is received from a base station, the resource configuration information instructing the base station to allocate resources for transmitting device-to-device D2D scheduling assignments and D2D data by the UE.
  • the resource configuration information includes: a scheduling allocation resource indication, indicating a resource for transmitting a D2D scheduling allocation by the UE, and a data resource indication indicating a resource for transmitting, by the UE, D2D data associated with the D2D scheduling allocation.
  • the method 400 further includes transmitting the D2D scheduling allocation and the D2D data according to the resource indicated by the resource configuration information.
  • the scheduling the allocation resource indication comprises: scheduling allocation time window information indicating a size of a scheduling allocation time window for transmitting the D2D scheduling assignment by the UE.
  • the data resource indication includes: data time window information indicating a size of a data time window for transmitting, by the UE, one or more medium access control MAC protocol data unit PDUs carrying D2D data; Information indicating a number of MAC PDUs to be transmitted by the UE in a data time window; transmission interval information indicating an interval between adjacent MAC PDUs transmitted by the UE in a data time window; transmission quantity information indicating indication by the UE The number of subframes occupied by each MAC PDU transmitted in the data time window; and transmission pattern information indicating the subframe position occupied by each MAC PDU transmitted by the UE in the data time window.
  • the scheduling allocation time window information, the data time window information, the data volume indication information, the transmission interval information, the transmission quantity information, and the transmission pattern information are wireless resources.
  • the source controls the RRC signaling to carry.
  • the transmission interval information includes: a transmission interval candidate set including one or more transmission interval candidates, wherein each transmission interval candidate indicates an interval between adjacent MAC PDUs transmitted by the UE in a data time window And a transmission interval index indicating an index of a transmission interval candidate to be used by the UE in the transmission interval candidate set.
  • the transmission quantity information includes: a transmission quantity candidate set including one or more transmission quantity candidates, wherein each transmission quantity candidate indicates a number of subframes occupied by each MAC PDU transmitted by the UE in a data time window; and transmission A quantity index indicating an index of the number of transmission candidates to be used by the UE in the set of transmission number candidates.
  • the transmission pattern information includes: a transmission pattern candidate set including one or more transmission pattern candidates, wherein each transmission pattern candidate indicates a subframe position occupied by each MAC PDU transmitted by the UE in a data time window; and transmission A pattern index indicating an index of a transmission pattern candidate to be used by the UE in the transmission pattern candidate set.
  • the scheduling allocation time window information, the data time window information, the data volume indication information, the transmission interval candidate set, the transmission number candidate set, and the transmission pattern candidate set are carried by the radio resource control RRC signaling.
  • the transmission interval index, the transmission number index, and the transmission pattern index are carried by information bits in the downlink control information DCI format 0.
  • a base station allocates resources for transmitting D2D scheduling allocation and D2D data by a UE, and transmits resource configuration information indicating the allocated resources to the UE.
  • the resource configuration information includes: a scheduling allocation resource indication indicating a resource for transmitting a D2D scheduling allocation by the UE, and a data resource indication indicating a resource for transmitting, by the UE, D2D data associated with the D2D scheduling allocation.
  • the UE receives the resource configuration information from the base station, and sends the D2D scheduling allocation and the D2D data according to the resource indicated by the resource configuration information.
  • the present invention provides a scheme for controlling resources used by a UE to transmit D2D scheduling assignments and D2D data.
  • the above-described embodiments of the present invention can be implemented by software, hardware, or a combination of both software and hardware.
  • the base station and various components within the user equipment in the above embodiments may be implemented by various devices including, but not limited to, analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, and programmable processing. , Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), Programmable Logic Devices (CPLDs), and more.
  • ASICs Application Specific Integrated Circuits
  • FPGAs Field Programmable Gate Arrays
  • CPLDs Programmable Logic Devices
  • base station refers to a mobile communication data and control switching center having a large transmission power and a relatively large coverage area, including resource allocation scheduling, data reception and transmission, and the like.
  • User equipment refers to a user mobile terminal, for example, a terminal device including a mobile phone, a notebook, etc., which can perform wireless communication with a base station or a micro base station.
  • embodiments of the invention disclosed herein may be implemented on a computer program product.
  • the computer program product is a product having a computer readable medium encoded with computer program logic that, when executed on a computing device, provides related operations to implement The above technical solution of the present invention.
  • the computer program logic When executed on at least one processor of a computing system, the computer program logic causes the processor to perform the operations (methods) described in the embodiments of the present invention.
  • Such an arrangement of the present invention is typically provided as software, code and/or other data structures, or such as one or more, that are arranged or encoded on a computer readable medium such as an optical medium (e.g., CD-ROM), floppy disk, or hard disk.
  • Software or firmware or such a configuration may be installed on the computing device such that one or more processors in the computing device perform the technical solutions described in the embodiments of the present invention.

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Abstract

本发明提供了一种基站中的方法，包括：向UE发送资源配置信息，其中，所述资源配置信息包括：传输图样索引，用于指示由UE使用的传输图样候选在所有传输图样候选集合中的索引，以用于在一个D2D数据时间窗口内进行D2D数据传输，调度分配时间窗口信息，指示用于由UE发送D2D调度分配的调度分配时间窗口的大小，以及数据时间窗口信息，指示用于由UE发送D2D数据时间窗口的大小。

Description

基站、用户设备及相关方法 技术领域
本发明涉及无线通信技术领域，更具体地，涉及一种基站、用户设备及相关方法。
背景技术
现代无线移动通信系统呈现出两个显著特点，一是宽带高速率，比如第四代无线移动通信系统的带宽可达100MHz，下行速率高达1Gbps；二是移动互联，推动了移动上网、手机视频点播、在线导航等新兴业务。这两个特点对无线移动通信技术提出了较高要求，主要有：超高速率无线传输、区域间干扰抑制、移动中可靠传输信号、分布式/集中式信号处理等等。在未来的增强第四代(4G)及第五代(5G)无线移动通信系统中，为了满足上述发展需求，各种相应的关键技术开始被提出和论证，值得本领域的研究人员广泛关注。
在2007年10月，国际电信联盟(ITU)批准全球微波互联接入系统(WiMax，Worldwide Interoperability for Microwave Access)成为第四个3G系统标准。这一发生在3G时代末期的事件，实际上是4G标准争夺战的预演。事实上，为了应对以无线局域网和WiMax为代表的无线IP技术流的挑战，从2005年开始，第三代3GPP组织就着手进行全新的系统升级，即长期演进系统(LTE，Long Term Evolution)的标准化工作。这是一个基于正交频分复用技术(OFDM，Orthogonal Frequency Division Multiplexing)的准四代系统，已于2009年初推出第一版，并在2010年陆续在全球开始商用。与此同时，3GPP组织关于第四代无线移动通信系统(4G，the Fourth Generation)的标准化制定工作也已经于2008年上半年启动，该系统称为先进的长期演进系统(LTE-A，Long Term Evolution Advanced)。该系统的物理层过程的关键标准化文书已于2011年初完成。在2011年11月ITU组织在中国重庆正式宣布，LTE-A系统和WiMax系统是4G系统的两个官方标准。目前，LTE-A系统的商用过程正在全球范围逐步展开。
根据未来十年的挑战，对于增强的第四代无线移动通信系统，大致 有以下几点发展需求：
-更高的无线宽带速率，且重点优化局部的小区热点区域；
-进一步提高用户体验，特别需要优化小区边界区域的通信服务；
-考虑到可用频谱不可能有1000倍的扩展，故需要继续研究能够提高频谱利用效率的新技术；
-高频段的频谱(5GHz，甚至更高)必将投入使用，以获得较大的通信带宽；
-现有网络(2G/3G/4G，WLAN，WiMax等)的协同工作，以分担数据流量；
-针对不同业务、应用和服务特定优化；
-加强系统支持大规模机器通信的能力；
-灵活、智能且廉价的网络规划与布网；
-设计方案以节省网络的用电量和用户设备的电池消耗。
为了实现上述发展需求，国际第三代伙伴计划(3GPP)组织在第58次全会上讨论并通过了将设备到设备(D2D)通信技术作为增强的第四代无线移动通信系统的关键技术。
D2D技术可以实现本地通信或对等的点对点通信，而无需接入核心网络，采用D2D技术的传输方式，在减轻基站负载和延长移动终端电池的使用时间上都有十分积极的作用。通常根据实现D2D传输的用户设备(以下称为D2D用户设备)所处的场景是否有宏基站的覆盖，可以将D2D用户设备的场景划分为：有网络覆盖下、无网络覆盖下以及部分网络覆盖，其中部分网络覆盖的场景是指，包含有网络覆盖和无网络覆盖的D2D用户设备的情况。
目前针对D2D通信，特别是基站覆盖下的D2D通信，3GPP定义了利用物理下行控制信道(PDCCH)和增强的物理下行控制信道(EPDCCH)来传输D2D调度分配(SA)和D2D数据(DATA)对应的D2D授权信息(Grant)。当D2D用户设备(UE)接收到授权信息后，可以根据授权信息向另一D2D UE发送相应的D2D调度分配和D2D数据。然而，UE不知道应当在哪些资源(时频资源)上发送D2D调度分配和D2D数据。
因此，需要新的方案，以控制UE用于发送D2D调度分配和D2D数据的资源。
发明内容
本发明的目的是提供一种基站、用户设备及相关方法，能够控制D2D用户设备(UE)用于发送D2D调度分配和D2D数据的资源。
根据本发明的第一方面，提供了一种基站中的方法，包括：向UE发送资源配置信息，其中，所述资源配置信息包括：传输图样索引，用于指示由UE使用的传输图样候选在所有传输图样候选集合中的索引，以用于在一个D2D数据时间窗口内进行D2D数据传输，调度分配时间窗口信息，指示用于由UE发送D2D调度分配的调度分配时间窗口的大小，以及数据时间窗口信息，指示用于由UE发送D2D数据时间窗口的大小。
在实施例中，传输图样索引，调度分配时间窗口信息、数据时间窗口信息是由无线资源控制RRC信令来承载的。
根据本发明的第二方面，提供了一种基站，包括：发送单元，向UE发送资源配置信息，其中，所述资源配置信息包括：传输图样索引，用于指示由UE使用的传输图样候选在所有传输图样候选集合中的索引，以用于在一个D2D数据时间窗口内进行D2D数据传输，调度分配时间窗口信息，指示用于由UE发送D2D调度分配的调度分配时间窗口的大小，以及数据时间窗口信息，指示用于由UE发送D2D数据时间窗口的大小。
以上第一方面中的方法的实施例也适用于基站。
根据本发明的第三方面，提供了一种用户设备UE中的方法，包括：从基站接收资源配置信息，其中，所述资源配置信息包括：传输图样索引，用于指示由UE使用的传输图样候选在所有传输图样候选集合中的索引，以用于在一个D2D数据时间窗口内进行D2D数据传输，调度分配时间窗口信息，指示用于由UE发送D2D调度分配的调度分配时间窗口的大小，以及数据时间窗口信息，指示用于由UE发送D2D数据时间窗口的大小。
在实施例中，传输图样索引，调度分配时间窗口信息、数据时间窗口信息是由无线资源控制RRC信令来承载的。
根据本发明的第四方面，提供了一种用户设备UE，包括：接收单元，从基站接收资源配置信息，其中，所述资源配置信息包括：传输图样索引，用于指示由UE使用的传输图样候选在所有传输图样候选集合中的索引，以用于在一个D2D数据时间窗口内进行D2D数据传输，调度分配时间窗口信息，指示用于由UE发送D2D调度分配的调度分配时间窗口的大小，以及数据时间窗口信息，指示用于由UE发送D2D数据时间窗口的大小。
以上第三方面中的方法的实施例也适用于UE。
根据本发明的实施例，基站向UE发送资源配置信息。所述资源配置信息包括：传输图样索引，用于指示由UE使用的传输图样候选在所有传输图样候选集合中的索引，以用于在一个D2D数据时间窗口内进行D2D数据传输，调度分配时间窗口信息，指示用于由UE发送D2D调度分配的调度分配时间窗口的大小，以及数据时间窗口信息，指示用于由UE发送D2D数据时间窗口的大小。这样，本发明提供了控制UE用于发送D2D调度分配和D2D数据的资源的方案。
附图说明
通过下面结合附图说明本发明的优选实施例，将使本发明的上述及其它目的、特征和优点更加清楚，其中：
图1是根据本发明实施例的基站的框图；
图2是根据本发明实施例的基站中的方法的流程图；
图3是根据本发明实施例的UE的框图；以及
图4是根据本发明实施例的UE中的方法的流程图。
具体实施方式
以下将结合附图和具体实施例，对本发明的实施例进行详细阐述。应当注意，本发明不应局限于下文所述的具体实施例。另外，为了简便 起见，省略了对与本发明没有直接关联的公知技术的详细描述，以防止对本发明的理解造成混淆。
下文以LTE移动通信系统及其后续的演进版本作为示例应用环境，具体描述了根据本发明的多个实施例。然而，需要指出的是，本发明不限于以下实施例，而是可适用于更多其它的无线通信系统，例如今后的5G蜂窝通信系统。
图1示出了根据本发明实施例的基站100的框图。如图所示，基站100包括：发送单元110。本领域技术人员应理解，基站100还包括实现其功能所必需的其他功能单元，如各种处理器、存储器等等。
发送单元110向UE发送资源配置信息。资源配置信息包括：传输图样索引，用于指示由UE使用的传输图样候选在所有传输图样候选集合中的索引，以用于在一个D2D数据时间窗口内进行D2D数据传输，调度分配时间窗口信息，指示用于由UE发送D2D调度分配的调度分配时间窗口的大小，以及数据时间窗口信息，指示用于由UE发送D2D数据时间窗口的大小。
作为一个实施例，传输图样索引，调度分配时间窗口信息、数据时间窗口信息是由无线资源控制RRC信令来承载的。
作为一个实施例，调度分配时间窗口的大小可以为10ms，20ms或40ms(或等效地，10，20或40子帧)。
作为一个实施例，数据时间窗口信息指示用于由UE发送承载D2D数据的一个或多个媒体接入控制MAC协议数据单元PDU的数据时间窗口的大小。
作为一个实施例，数据时间窗口的大小可以为40ms，80ms，120ms，160ms，240ms或320ms(或等效地，40，80，120，160，240或320子帧)。
在一个示例中，可选地，基站100还包括：资源分配单元，分配用于由用户设备UE发送设备至设备D2D调度分配和D2D数据的资源。
在一个示例中，发送单元110向UE发送资源配置信息，所述资源配置信息指示资源分配单元所分配的资源。所述资源配置信息包括：调 度分配资源指示，指示用于由UE发送D2D调度分配的资源，以及数据资源指示，指示用于由UE发送与D2D调度分配相关联的D2D数据的资源。
调度分配资源指示包括：调度分配时间窗口信息，指示用于由UE发送D2D调度分配的调度分配时间窗口的大小。
数据资源指示还包括：数据量指示信息，指示用于由UE在数据时间窗口中发送的MAC PDU的数量。作为一个实施例，该数量为1，2，4或8。该数量可以由基站(例如演进NodeB eNB)显式指示。备选地，该数量可以不由基站显式指示，而是可以利用数据时间窗口的大小来隐式指示。即，如果数据时间窗口的大小与MAC PDU的数量之间可以具有UE已知的预定关系。例如，当UE接收到的数据时间窗口信息指示80ms的数据时间窗口时，UE可以确定MAC PDU的数量为2。
数据资源指示还包括：传输间隔信息，指示由UE在数据时间窗口中发送的相邻MAC PDU之间的间隔。作为一个实施例，该间隔可以为20ms，40ms，80ms或160ms(或等效地，20，40，80或160子帧)。
数据资源指示还包括：传输数量信息，指示由UE在数据时间窗口中发送的每个MAC PDU所占用的子帧数目。作为一个实施例，该子帧数目可以为1，2，4或8。
数据资源指示还包括：传输图样信息，指示由UE在数据时间窗口中发送的每个MAC PDU所占用的子帧位置。传输图样信息可以由位图(bitmap)来表示，如以下所述。
在一个实施例中，调度分配时间窗口信息、数据时间窗口信息、数据量指示信息、传输间隔信息、传输数量信息以及传输图样信息是由无线资源控制RRC信令来承载的。
在一个实施例中，传输间隔信息包括：传输间隔候选集合，包含一个或多个传输间隔候选，其中每个传输间隔候选指示由UE在数据时间窗口中发送的相邻MAC PDU之间的间隔。例如，传输间隔候选集合可以包含4个传输间隔候选，如{20，40，80，120}(ms)或{40，80，120，160}(ms)。备选地，传输间隔候选集合可以包含2个传输间隔候选，如{10，20}(ms)，{20，40}(ms)，{40，80}(ms)或{80，120}(ms)。传输间隔候选集合中的每个传输间隔候选可以分配有索引。在这种情况下，传输间隔信息还包括： 传输间隔索引，指示要由UE使用的传输间隔候选在传输间隔候选集合中的索引。
在一个实施例中，传输数量信息包括：传输数量候选集合，包含一个或多个传输数量候选，其中每个传输数量候选指示由UE在数据时间窗口中发送的每个MAC PDU所占用的子帧数目。例如，传输数量候选集合可以包含4个传输数量候选，如{1，2，4，8}。传输数量候选集合中的每个传输数量候选可以分配有索引。在这种情况下，传输数量信息还包括：传输数量索引，指示要由UE使用的传输数量候选在传输数量候选集合中的索引。
在一个实施例中，传输图样信息包括：传输图样候选集合，包含一个或多个传输图样候选，其中每个传输图样候选指示由UE在数据时间窗口中发送的每个MAC PDU所占用的子帧位置。例如，传输图样候选集合可以包含16个传输图样候选。作为示例，每个传输图样候选可以由40比特的位图(bitmap)来表示，其中40比特表示40ms(或40子帧)，每个“1”比特表示MAC PDU所占用的子帧位置。下表1中每一行表示一个传输图样候选：
表1传输图样候选
Figure PCTCN2015083044-appb-000001
Figure PCTCN2015083044-appb-000002
传输图样候选集合中的每个传输图样候选可以分配有索引。在这种情况下，传输图样信息还包括：传输图样索引，指示要由UE使用的传输图样候选在传输图样候选集合中的索引。
传输间隔索引，传输数量索引和传输图样索引中的每一个可以由整数来表示，例如，整数“1”表示相应集合中的第一个候选，“2”表示相应集合中的第二个候选，以此类推。备选地，传输间隔索引，传输数量索引和传输图样索引中的每一个可以由一个或多个比特来表示，例如，比特“0”，“00”，“0000”表示相应集合中的第一个候选，“1”，“01”，“0001”表示相应集合中的第二个候选，以此类推。
在一个实施例中，调度分配时间窗口信息、数据时间窗口信息、数据量指示信息、传输间隔候选集合、传输数量候选集合以及传输图样候选集合是由无线资源控制RRC信令来承载的。传输间隔索引、传输数量索引以及传输图样索引是由下行控制信息DCI格式0中的信息比特来承载的。例如，传输间隔索引、传输数量索引以及传输图样索引可以通过DCI格式0的PDCCH或EPDCCH信令发送给UE。例如，可以利用格式0中的用于格式0/格式1A的标记，NDI，CQI请求，SRS请求，CIF比特中的所有或者部分比特来承载。
图2是根据本发明实施例的基站中的方法200的流程图。应注意，与上述基站100的实施例相结合描述的所有特征也适用于以下方法实施例。方法200可以由上述基站100来执行，并包括以下步骤。
在步骤S210，向UE发送资源配置信息。资源配置信息包括：传输图样索引，用于指示由UE使用的传输图样候选在所有传输图样候选集合中的索引，以用于在一个D2D数据时间窗口内进行D2D数据传输， 调度分配时间窗口信息，指示用于由UE发送D2D调度分配的调度分配时间窗口的大小，以及数据时间窗口信息，指示用于由UE发送D2D数据时间窗口的大小。
作为一个实施例，传输图样索引，调度分配时间窗口信息、数据时间窗口信息是由无线资源控制RRC信令来承载的。
在一个示例中，可选地，方法200还包括：分配用于由用户设备UE发送设备至设备D2D调度分配和D2D数据的资源。
在一个示例中，在步骤S210，向UE发送资源配置信息，所述资源配置信息指示所分配的资源。所述资源配置信息包括：调度分配资源指示，指示用于由UE发送D2D调度分配的资源，以及数据资源指示，指示用于由UE发送与D2D调度分配相关联的D2D数据的资源。
在实施例中，调度分配资源指示包括：调度分配时间窗口信息，指示用于由UE发送D2D调度分配的调度分配时间窗口的大小。
在实施例中，所述数据资源指示包括：数据时间窗口信息，指示用于由UE发送承载D2D数据的一个或多个媒体接入控制MAC协议数据单元PDU的数据时间窗口的大小；数据量指示信息，指示用于由UE在数据时间窗口中发送的MAC PDU的数量；传输间隔信息，指示由UE在数据时间窗口中发送的相邻MAC PDU之间的间隔；传输数量信息，指示由UE在数据时间窗口中发送的每个MAC PDU所占用的子帧数目；以及传输图样信息，指示由UE在数据时间窗口中发送的每个MAC PDU所占用的子帧位置。
在实施例中，调度分配时间窗口信息、数据时间窗口信息、数据量指示信息、传输间隔信息、传输数量信息以及传输图样信息是由无线资源控制RRC信令来承载的。
在实施例中，所述传输间隔信息包括：传输间隔候选集合，包含一个或多个传输间隔候选，其中每个传输间隔候选指示由UE在数据时间窗口中发送的相邻MAC PDU之间的间隔；以及传输间隔索引，指示要由UE使用的传输间隔候选在传输间隔候选集合中的索引。所述传输数量信息包括：传输数量候选集合，包含一个或多个传输数量候选，其中每个传输数量候选指示由UE在数据时间窗口中发送的每个MAC PDU 所占用的子帧数目；以及传输数量索引，指示要由UE使用的传输数量候选在传输数量候选集合中的索引。所述传输图样信息包括：传输图样候选集合，包含一个或多个传输图样候选，其中每个传输图样候选指示由UE在数据时间窗口中发送的每个MAC PDU所占用的子帧位置；以及传输图样索引，指示要由UE使用的传输图样候选在传输图样候选集合中的索引。
在实施例中，调度分配时间窗口信息、数据时间窗口信息、数据量指示信息、传输间隔候选集合、传输数量候选集合以及传输图样候选集合是由无线资源控制RRC信令来承载的。传输间隔索引、传输数量索引以及传输图样索引是由下行控制信息DCI格式0中的信息比特来承载的。
图3示出了根据本发明实施例的UE 300的框图。如图所示，UE 300包括：接收单元310。本领域技术人员应理解，UE 300还包括实现其功能所必需的其他功能单元，如各种处理器、存储器等等。
接收单元310从基站接收资源配置信息。资源配置信息包括：传输图样索引，用于指示由UE使用的传输图样候选在所有传输图样候选集合中的索引，以用于在一个D2D数据时间窗口内进行D2D数据传输，调度分配时间窗口信息，指示用于由UE发送D2D调度分配的调度分配时间窗口的大小，以及数据时间窗口信息，指示用于由UE发送D2D数据时间窗口的大小。
作为一个实施例，传输图样索引，调度分配时间窗口信息、数据时间窗口信息是由无线资源控制RRC信令来承载的。
在一个示例中，接收单元310从基站接收资源配置信息，所述资源配置信息指示基站分配用于由UE发送设备至设备D2D调度分配和D2D数据的资源。所述资源配置信息包括：调度分配资源指示，指示用于由UE发送D2D调度分配的资源，以及数据资源指示，指示用于由UE发送与D2D调度分配相关联的D2D数据的资源。
可选地，UE 300还包括：发送单元，根据所述资源配置信息所指示的资源，发送D2D调度分配和D2D数据。
在实施例中，调度分配资源指示包括：调度分配时间窗口信息，指示用于由UE发送D2D调度分配的调度分配时间窗口的大小。
在实施例中，所述数据资源指示包括：数据时间窗口信息，指示用于由UE发送承载D2D数据的一个或多个媒体接入控制MAC协议数据单元PDU的数据时间窗口的大小；数据量指示信息，指示用于由UE在数据时间窗口中发送的MAC PDU的数量；传输间隔信息，指示由UE在数据时间窗口中发送的相邻MAC PDU之间的间隔；传输数量信息，指示由UE在数据时间窗口中发送的每个MAC PDU所占用的子帧数目；以及传输图样信息，指示由UE在数据时间窗口中发送的每个MAC PDU所占用的子帧位置。
在实施例中，调度分配时间窗口信息、数据时间窗口信息、数据量指示信息、传输间隔信息、传输数量信息以及传输图样信息是由无线资源控制RRC信令来承载的。
在实施例中，所述传输间隔信息包括：传输间隔候选集合，包含一个或多个传输间隔候选，其中每个传输间隔候选指示由UE在数据时间窗口中发送的相邻MAC PDU之间的间隔；以及传输间隔索引，指示要由UE使用的传输间隔候选在传输间隔候选集合中的索引。所述传输数量信息包括：传输数量候选集合，包含一个或多个传输数量候选，其中每个传输数量候选指示由UE在数据时间窗口中发送的每个MAC PDU所占用的子帧数目；以及传输数量索引，指示要由UE使用的传输数量候选在传输数量候选集合中的索引。所述传输图样信息包括：传输图样候选集合，包含一个或多个传输图样候选，其中每个传输图样候选指示由UE在数据时间窗口中发送的每个MAC PDU所占用的子帧位置；以及传输图样索引，指示要由UE使用的传输图样候选在传输图样候选集合中的索引。
在实施例中，调度分配时间窗口信息、数据时间窗口信息、数据量指示信息、传输间隔候选集合、传输数量候选集合以及传输图样候选集合是由无线资源控制RRC信令来承载的。传输间隔索引、传输数量索引以及传输图样索引是由下行控制信息DCI格式0中的信息比特来承载的。
图4是根据本发明实施例的UE中的方法400的流程图。应注意，与上述UE 300的实施例相结合描述的所有特征也适用于以下方法实施例。方法400可以由上述UE 300来执行，并包括以下步骤。
在步骤S410，从基站接收资源配置信息。资源配置信息包括：传输图样索引，用于指示由UE使用的传输图样候选在所有传输图样候选集合中的索引，以用于在一个D2D数据时间窗口内进行D2D数据传输，调度分配时间窗口信息，指示用于由UE发送D2D调度分配的调度分配时间窗口的大小，以及数据时间窗口信息，指示用于由UE发送D2D数据时间窗口的大小。
作为一个实施例，传输图样索引，调度分配时间窗口信息、数据时间窗口信息是由无线资源控制RRC信令来承载的。
在一个示例中，在步骤S410，从基站接收资源配置信息，所述资源配置信息指示基站分配用于由UE发送设备至设备D2D调度分配和D2D数据的资源。所述资源配置信息包括：调度分配资源指示，指示用于由UE发送D2D调度分配的资源，以及数据资源指示，指示用于由UE发送与D2D调度分配相关联的D2D数据的资源。
在一个示例中，可选地，方法400还包括：根据所述资源配置信息所指示的资源，发送D2D调度分配和D2D数据。
在实施例中，调度分配资源指示包括：调度分配时间窗口信息，指示用于由UE发送D2D调度分配的调度分配时间窗口的大小。
在实施例中，所述数据资源指示包括：数据时间窗口信息，指示用于由UE发送承载D2D数据的一个或多个媒体接入控制MAC协议数据单元PDU的数据时间窗口的大小；数据量指示信息，指示用于由UE在数据时间窗口中发送的MAC PDU的数量；传输间隔信息，指示由UE在数据时间窗口中发送的相邻MAC PDU之间的间隔；传输数量信息，指示由UE在数据时间窗口中发送的每个MAC PDU所占用的子帧数目；以及传输图样信息，指示由UE在数据时间窗口中发送的每个MAC PDU所占用的子帧位置。
在实施例中，调度分配时间窗口信息、数据时间窗口信息、数据量指示信息、传输间隔信息、传输数量信息以及传输图样信息是由无线资 源控制RRC信令来承载的。
在实施例中，所述传输间隔信息包括：传输间隔候选集合，包含一个或多个传输间隔候选，其中每个传输间隔候选指示由UE在数据时间窗口中发送的相邻MAC PDU之间的间隔；以及传输间隔索引，指示要由UE使用的传输间隔候选在传输间隔候选集合中的索引。所述传输数量信息包括：传输数量候选集合，包含一个或多个传输数量候选，其中每个传输数量候选指示由UE在数据时间窗口中发送的每个MAC PDU所占用的子帧数目；以及传输数量索引，指示要由UE使用的传输数量候选在传输数量候选集合中的索引。所述传输图样信息包括：传输图样候选集合，包含一个或多个传输图样候选，其中每个传输图样候选指示由UE在数据时间窗口中发送的每个MAC PDU所占用的子帧位置；以及传输图样索引，指示要由UE使用的传输图样候选在传输图样候选集合中的索引。
在实施例中，调度分配时间窗口信息、数据时间窗口信息、数据量指示信息、传输间隔候选集合、传输数量候选集合以及传输图样候选集合是由无线资源控制RRC信令来承载的。传输间隔索引、传输数量索引以及传输图样索引是由下行控制信息DCI格式0中的信息比特来承载的。
关于调度分配资源指示和数据资源指示，以上关于基站100所描述的所有具体细节也适用于上述方法200，UE 300和方法400。
根据本发明的实施例，基站分配用于由UE发送D2D调度分配和D2D数据的资源，并向UE发送指示所分配的资源的资源配置信息。资源配置信息包括：指示用于由UE发送D2D调度分配的资源的调度分配资源指示以及指示用于由UE发送与D2D调度分配相关联的D2D数据的资源的数据资源指示。相应地，UE从基站接收资源配置信息，并根据资源配置信息所指示的资源，发送D2D调度分配和D2D数据。这样，本发明提供了控制UE用于发送D2D调度分配和D2D数据的资源的方案。
应该理解，本发明的上述实施例可以通过软件、硬件或者软件和硬件两者的结合来实现。例如，上述实施例中的基站和用户设备内部的各种组件可以通过多种器件来实现，这些器件包括但不限于：模拟电路器件、数字电路器件、数字信号处理(DSP)电路、可编程处理器、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、可编程逻辑器件(CPLD)，等等。
在本申请中，“基站”是指具有较大发射功率和较广覆盖面积的移动通信数据和控制交换中心，包括资源分配调度、数据接收发送等功能。“用户设备”是指用户移动终端，例如包括移动电话、笔记本等可以与基站或者微基站进行无线通信的终端设备。
此外，这里所公开的本发明的实施例可以在计算机程序产品上实现。更具体地，该计算机程序产品是如下的一种产品：具有计算机可读介质，计算机可读介质上编码有计算机程序逻辑，当在计算设备上执行时，该计算机程序逻辑提供相关的操作以实现本发明的上述技术方案。当在计算系统的至少一个处理器上执行时，计算机程序逻辑使得处理器执行本发明实施例所述的操作(方法)。本发明的这种设置典型地提供为设置或编码在例如光介质(例如CD-ROM)、软盘或硬盘等的计算机可读介质上的软件、代码和/或其他数据结构、或者诸如一个或多个ROM或RAM或PROM芯片上的固件或微代码的其他介质、或一个或多个模块中的可下载的软件图像、共享数据库等。软件或固件或这种配置可安装在计算设备上，以使得计算设备中的一个或多个处理器执行本发明实施例所描述的技术方案。
尽管以上已经结合本发明的优选实施例示出了本发明，但是本领域的技术人员将会理解，在不脱离本发明的精神和范围的情况下，可以对本发明进行各种修改、替换和改变。因此，本发明不应由上述实施例来限定，而应由所附权利要求及其等价物来限定。

Claims (8)

  1. 一种基站中的方法，包括：
    向UE发送资源配置信息，其中，所述资源配置信息包括：
    传输图样索引，用于指示由UE使用的传输图样候选在所有传输图样候选集合中的索引，以用于在一个D2D数据时间窗口内进行D2D数据传输，
    调度分配时间窗口信息，指示用于由UE发送D2D调度分配的调度分配时间窗口的大小，以及
    数据时间窗口信息，指示用于由UE发送D2D数据时间窗口的大小。
  2. 根据权利要求1所述的方法，其中，传输图样索引，调度分配时间窗口信息、数据时间窗口信息是由无线资源控制RRC信令来承载的。
  3. 一种基站，包括：
    发送单元，向UE发送资源配置信息，
    其中，所述资源配置信息包括：
    传输图样索引，用于指示由UE使用的传输图样候选在所有传输图样候选集合中的索引，以用于在一个D2D数据时间窗口内进行D2D数据传输，
    调度分配时间窗口信息，指示用于由UE发送D2D调度分配的调度分配时间窗口的大小，以及
    数据时间窗口信息，指示用于由UE发送D2D数据时间窗口的大小。
  4. 根据权利要求3所述的基站，其中，传输图样索引，调度分配时间窗口信息、数据时间窗口信息是由无线资源控制RRC信令来承载的。
  5. 一种用户设备UE中的方法，包括：
    从基站接收资源配置信息，其中，所述资源配置信息包括：
    传输图样索引，用于指示由UE使用的传输图样候选在所有传输图样候选集合中的索引，以用于在一个D2D数据时间窗口内进行D2D数据传输，
    调度分配时间窗口信息，指示用于由UE发送D2D调度分配的 调度分配时间窗口的大小，以及
    数据时间窗口信息，指示用于由UE发送D2D数据时间窗口的大小。
  6. 根据权利要求5所述的方法，其中，传输图样索引，调度分配时间窗口信息、数据时间窗口信息是由无线资源控制RRC信令来承载的。
  7. 一种用户设备UE，包括：
    接收单元，从基站接收资源配置信息，其中，所述资源配置信息包括：
    传输图样索引，用于指示由UE使用的传输图样候选在所有传输图样候选集合中的索引，以用于在一个D2D数据时间窗口内进行D2D数据传输，
    调度分配时间窗口信息，指示用于由UE发送D2D调度分配的调度分配时间窗口的大小，以及
    数据时间窗口信息，指示用于由UE发送D2D数据时间窗口的大小。
  8. 根据权利要求7所述的UE，其中，传输图样索引，调度分配时间窗口信息、数据时间窗口信息是由无线资源控制RRC信令来承载的。
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