WO2015042834A1 - Procédé, dispositif et système pour l'allocation de ressources - Google Patents

Procédé, dispositif et système pour l'allocation de ressources Download PDF

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Publication number
WO2015042834A1
WO2015042834A1 PCT/CN2013/084337 CN2013084337W WO2015042834A1 WO 2015042834 A1 WO2015042834 A1 WO 2015042834A1 CN 2013084337 W CN2013084337 W CN 2013084337W WO 2015042834 A1 WO2015042834 A1 WO 2015042834A1
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WO
WIPO (PCT)
Prior art keywords
resource
subframe
information
physical
allocation information
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PCT/CN2013/084337
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English (en)
Chinese (zh)
Inventor
胡振兴
权威
张戬
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2013/084337 priority Critical patent/WO2015042834A1/fr
Priority to CN201380002425.XA priority patent/CN105264921A/zh
Publication of WO2015042834A1 publication Critical patent/WO2015042834A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a resource allocation method, apparatus, and system. Background technique
  • the MBMS implementation includes MBMS broadcast process and session start (session).
  • MBSFN-Area InfoList A multimedia broadcast multicast service single frequency network area information table (hereinafter referred to as MBSFN-Area InfoList) is obtained in the system information block 13 (system information blockl3, abbreviated as: SIB13). ) and the configuration of the MBMS notification (MBMS-Notification Config).
  • the UE then reads an MBSFN area configuration message (Area Configuration) based on the configuration of the MCCH in the MBSFN-Area InfoList, where the message includes an MBSFN subframe configuration and a Physical Multicast Channel-InfoList (hereinafter referred to as PMCH).
  • PMCH Physical Multicast Channel-InfoList
  • -InfoList where PMCH-InfoList can be understood as the transmission information of the multimedia service, and the UE can search for the service of interest from the PMCH-InfoList, and if so, receive the multicast channel scheduling information according to the MBSFN subframe configuration (Multicast) Channel scheduling information (hereinafter referred to as MSI) and multicast traffic channel (hereinafter referred to as MTCH).
  • MSI MBSFN subframe configuration
  • MTCH multicast traffic channel
  • one cell may belong to multiple MBSFN areas, each MBSFN area contains one to multiple PMCHs, and each PMCH includes 0 to multiple sessions.
  • the UE supporting the MBMS service acquires the MBMS service data from the resource location corresponding to the session based on the session of interest.
  • the current shortest MSI scheduling period is 8 frames or 80 ms, and different MBSFN areas cannot be shared.
  • MBSFN subframe resources in the same frame that is, if two MBSFN areas are configured, there must be some packets waiting at least one frame (10ms) delay, and there is time division multiplexing between PMCHs in each MBSFN area. Together, it will introduce a certain delay. Therefore, for low-latency services with low data buffering time and low-rate services, the current MBMS mechanism cannot be efficiently carried. Summary of the invention
  • the embodiments of the present invention provide a resource allocation method, apparatus, and system, so that the MBMS mechanism can efficiently carry low-latency and/or low-rate services.
  • an embodiment of the present invention provides a resource allocation method, including:
  • User equipment UE acquires a multimedia broadcast multicast service single frequency network sent by the network side device
  • An MBSFN area configuration message where the MBSFN area configuration message includes an MBSFN subframe configuration and a physical multicast channel information table, where the MBSFN subframe configuration includes each of the first subframe allocation information and the first subframe allocation information.
  • a physical resource block group corresponding to the frame allocated to the MBSFN area, where the physical multicast channel information table includes the second subframe allocation information and the second subframe allocation information corresponding to each subframe allocated to the physical multicast channel Physical resource block group;
  • the UE receives the multicast traffic channel MTCH according to the MBSFN area configuration message.
  • the method before the UE receives the multicast service channel MTCH according to the MBSFN area configuration message, the method further includes:
  • the UE receives the multicast channel scheduling information MSI according to the MBSFN area configuration message, and the UE receives the multicast service channel MTCH according to the MBSFN area configuration message, including:
  • the UE receives the MTCH according to the MBSFN area configuration message and the MSI.
  • the MSI includes a logical channel number of each session in the physical multicast channel and the logical channel number
  • the physical resource block group allocation is allocated by using a bitmap.
  • the MSI includes a logical channel number of each session in the physical multicast channel corresponding to the logical channel number Physical resource block group allocation, in an MSI period, multiple physical resource block groups are allocated for the same logical channel number.
  • the physical multicast channel information table further includes each subframe in the third subframe allocation information and the third subframe allocation information. Corresponding physical resource block group assigned to the session.
  • the physical multicast channel information table further includes modulation coding mode MCS information, where the MCS information is used. Indicates the MCS that the session can use.
  • the physical resource block group is a consecutive N a physical resource block, where N is a parameter carried in the configuration of the MBSFN subframe, or the N is a parameter carried in a notification message broadcast by the network side device, or the N is a preset parameter;
  • the first subframe allocation information or the second subframe allocation information includes uplink and downlink indication information, where the uplink and downlink indication information is used to indicate that the uplink subframe allocation or the downlink subframe allocation.
  • the physical resource block group is consecutive A a physical resource block, where A is a parameter carried in the physical multicast channel information table, or the A is a parameter carried in a notification message broadcast by the network side device, or the A is a preset parameter;
  • the third subframe allocation information includes uplink and downlink indication information, and the uplink and downlink indication information is used to indicate that the uplink subframe allocation or the downlink subframe allocation.
  • an embodiment of the present invention provides a resource allocation method, including:
  • the network side device generates a multimedia broadcast multicast service single frequency network MBSFN area configuration message, where the MBSFN area configuration message includes an MBSFN subframe configuration and a physical multicast channel information table, where the MBSFN subframe configuration includes the first subframe allocation information and a physical resource block group allocated to an MBSFN area corresponding to each subframe in the first subframe allocation information, where the physical multicast channel information table includes second subframe allocation information and the second subframe allocation information Each of the subframes corresponds to a physical resource block group allocated to the physical multicast channel;
  • the network side device sends the MBSFN area configuration message to the user equipment UE, so that the UE receives the multicast service channel MTCH according to the MBSFN area configuration message.
  • the method further includes: The network side device sends multicast channel scheduling information MSI to the UE, so that the UE receives the MTCH according to the MBSFN area configuration message and the MSI.
  • the MSI includes a logical channel number of each session in the physical multicast channel corresponding to the logical channel number Physical resource block group allocation, the physical resource block group allocation is allocated by means of a bitmap.
  • the MSI includes a logical channel number of each session in the physical multicast channel corresponding to the logical channel number Physical resource block group allocation, in an MSI period, multiple physical resource block groups are allocated for the same logical channel number.
  • the physical multicast channel information table further includes each subframe in the third subframe allocation information and the third subframe allocation information. Corresponding physical resource block group assigned to the session.
  • the physical multicast channel information table further includes modulation and coding mode MCS information, where the MCS information is used. Indicates the MCS that the session can use.
  • the physical resource block group is a continuous N a physical resource block, where N is a parameter carried in the configuration of the MBSFN subframe, or the N is a parameter carried in a notification message broadcast by the network side device, or a parameter preset by the N;
  • the first subframe allocation information or the second subframe allocation information includes uplink and downlink indication information, where the uplink and downlink indication information is used to indicate that the uplink subframe allocation or the downlink subframe allocation.
  • the physical resource block group is consecutive A a physical resource block, where A is a parameter carried in the physical multicast channel information table, or the A is a parameter carried in a notification message broadcast by the network side device, or the A is a preset parameter;
  • the third subframe allocation information includes uplink and downlink indication information, where the uplink and downlink indication information is used to indicate that the uplink subframe allocation or the downlink subframe allocation.
  • an embodiment of the present invention provides a resource allocation method, including: a user equipment UE sends a communication request to a network side device, where the communication request is a D2D communication request or a group communication request;
  • the UE performs communication according to the resource configuration in the resource allocation information.
  • the UE when the communication request is a D2D communication request, the UE performs communication according to the resource configuration in the resource allocation information, including: the UE configuring the resource
  • the session resource corresponding to the index identifier is configured to perform D2D communication as a resource of D2D communication.
  • the resource allocation information further includes D2D communication security configuration information, where the D2D communication security configuration information includes encryption and decryption parameter.
  • the resource allocation information further includes a modulation coding mode MCS Information
  • the MCS information is used to indicate a modulation and coding manner used by the UE when using the resource allocated by the resource allocation information.
  • the UE when the communication request is a group communication request, the UE performs communication according to the resource configuration in the resource allocation information, including:
  • the UE performs group communication by using the session resource configuration corresponding to the resource configuration index identifier as the resource of the group communication.
  • the group communication request carries a first group of identifiers
  • the received broadcast message sent by the base station is received by the UE
  • the MBSFN area configuration message included in the multimedia broadcast multicast service single-frequency network further includes the first group identifier, which is used for monitoring resource positions of other UEs in the group.
  • the resource configuration index identifier is a temporary mobile group identifier TMGI, or,
  • the resource configuration index identifier is a TMGI and an MBSFN area identifier, or
  • the resource configuration index identifier is an MBSFN area identifier, a physical multicast channel PMCH identifier, and a session identifier.
  • the resource allocation information is controlled by a radio resource control RRC message Or the medium access control MAC control unit or the physical downlink control channel PDCCH is carried.
  • an embodiment of the present invention provides a resource allocation method, including:
  • the network side device receives a communication request sent by the user equipment UE, where the communication request is a D2D communication request or a group communication request;
  • the network side device sends resource allocation information to the UE according to the communication request, where the resource allocation information includes a resource configuration index identifier, so that the UE performs communication according to the resource configuration in the resource allocation information.
  • the resource allocation information further includes D2D communication security configuration information, where the D2D communication security configuration information includes an encryption and decryption parameter.
  • the resource allocation information further includes modulation coding mode MCS information, where the MCS information is used And a modulation coding manner used when the UE allocates resources allocated by the resource allocation information.
  • the group communication request carries a first group of identifiers
  • the method further includes:
  • the network side device allocates a group communication resource to the UE according to the group communication request, and broadcasts a broadcast message including a multimedia broadcast multicast service single frequency network MBSFN area configuration message to the UE, where the MBSFN area configuration message includes the The first set of identifiers, used for resource locations in other groups listening to group communication within the group.
  • the resource configuration index is identified as a temporary mobile group identifier TMGI, or,
  • the resource configuration index identifier is a TMGI and an MBSFN area identifier, or the resource configuration index identifier is an MBSFN area identifier, a physical multicast channel PMCH identifier, and a session identifier.
  • the resource allocation information is controlled by a radio resource RRC message Or the medium access control MAC control unit or the physical downlink control channel PDCCH is carried.
  • an embodiment of the present invention provides a user equipment, including:
  • a processing unit configured to acquire a MBSFN area configuration message of a multimedia broadcast multicast service single frequency network sent by the network side device, where the MBSFN area configuration message includes an MBSFN subframe configuration and a physical multicast channel information table, where the first subframe allocation a physical resource block group allocated to the MBSFN area corresponding to each subframe in the information, where the physical multicast channel information table includes an allocation corresponding to each subframe in the second subframe allocation information and the second subframe allocation information. a physical resource block group for the physical multicast channel;
  • a receiving unit configured to receive a multicast service channel according to the MBSFN area configuration message, MTCHo
  • the receiving unit is further configured to: receive multicast channel scheduling information according to the MBSFN area configuration message, before receiving the multicast service channel PMCH according to the MBSFN area configuration message.
  • MSI multicast channel scheduling information according to the MBSFN area configuration message
  • the receiving unit is specifically configured to: receive an MTCH according to the MBSFN area configuration message and the MSI.
  • the receiving unit is specifically configured to:
  • the MSFN area configuration message And receiving, by the MSFN area configuration message, the MSI, the MSI, where the MSI includes a physical resource block group corresponding to a logical channel number of each session in the physical multicast channel and the logical channel number, where the physical resource block group
  • the allocation is done in the form of a bitmap.
  • the receiving unit is specifically configured to:
  • the MSI includes a logical resource group number of each session in the physical multicast channel and a physical resource block group allocation corresponding to the logical channel number, in an MSI period, There are multiple physical resource block groups allocated for the same logical channel number.
  • the physical The broadcast channel information table further includes a physical resource block group allocated to the session corresponding to each subframe in the third subframe allocation information and the third subframe allocation information;
  • the receiving unit is configured to: receive a multicast traffic channel MTCH according to the MBSFN subframe configuration and the physical multicast channel information table.
  • the physical multicast channel information table further includes modulation coding mode MCS information, where the MCS information is used Indicates the MCS that the session can use.
  • the physical resource block group is a continuous N a physical resource block, where N is a parameter carried in the configuration of the MBSFN subframe, or the N is a parameter carried in a notification message broadcast by the network side device, or the N is a preset parameter;
  • the first subframe allocation information or the second subframe allocation information includes uplink and downlink indication information, where the uplink and downlink indication information is used to indicate that the uplink subframe allocation or the downlink subframe allocation.
  • the physical resource block group is a consecutive A a physical resource block, where A is a parameter carried in the physical multicast channel information table, or the A is a parameter carried in a notification message broadcast by the network side device, or the A is a preset parameter;
  • the third subframe allocation information includes uplink and downlink indication information, and the uplink and downlink indication information is used to indicate that the uplink subframe allocation or the downlink subframe allocation.
  • an embodiment of the present invention provides a network side device, including:
  • a generating unit configured to generate a multimedia broadcast multicast service single frequency network MBSFN area configuration message, where the MBSFN area configuration message includes an MBSFN subframe configuration and a physical multicast channel information table, where the MBSFN subframe configuration includes a first subframe allocation And a physical resource block group allocated to the MBSFN area corresponding to each subframe in the first subframe allocation information, where the physical multicast channel information table includes second subframe allocation information and the second subframe allocation a physical resource block group allocated to a physical multicast channel corresponding to each subframe in the information;
  • a sending unit configured to send the MBSFN area configuration message to the user equipment UE, so that the UE receives the multicast service channel MTCH according to the MBSFN area configuration message.
  • the sending unit is further configured to: send multicast channel scheduling information MSI to the UE, to enable the UE to use the MBSFN area configuration message and the MSI. Receive MTCH.
  • the sending unit is further configured to:
  • the MSI Transmitting the MSI to the UE, so that the UE receives an MTCH according to the MBSFN area configuration message and the MSI, where the MSI includes a logical channel number and a logical channel number of each session in a physical multicast channel.
  • the physical resource block group allocation is allocated by using a bitmap.
  • the sending unit is further configured to:
  • Transmitting the MSI to the UE so that the UE receives an MTCH according to the MBSFN area configuration message and the MSI, where the MSI includes a logical channel number and a logical channel number of each session in a physical multicast channel.
  • the MSI includes a logical channel number and a logical channel number of each session in a physical multicast channel.
  • the physical multicast channel information table further includes each subframe in the third subframe allocation information and the third subframe allocation information. Corresponding physical resource block group assigned to the session.
  • the physical multicast channel information table further includes modulation coding mode MCS information, where the MCS information is used. Indicates the MCS that the session can use.
  • the physical resource block group is a continuous N physical resource blocks, and the N is the MBSFN sub- The parameter carried in the frame configuration, or the N is a parameter carried in the notification message broadcasted by the network side device, or the parameter preset by the N;
  • the first subframe allocation information or the second subframe allocation information includes uplink and downlink indication information, where the uplink and downlink indication information is used to indicate that the uplink subframe allocation or the downlink subframe allocation.
  • the physical resource block group is a continuous A physical resource block, and the A is the physical multicast channel.
  • the parameter carried in the information table, or the A is a broadcast broadcast by the network side device. Knowing the parameters carried in the message, or, the A is a preset parameter;
  • the third subframe allocation information includes uplink and downlink indication information, and the uplink and downlink indication information is used to indicate that the uplink subframe allocation or the downlink subframe allocation.
  • the seventh aspect of the present invention provides a user equipment, including:
  • a sending unit configured to send a communication request to the network side device, where the communication request is a D2D communication request or a group communication request;
  • a receiving unit configured to receive resource allocation information that is sent by the network side device according to the communication request, where the resource allocation information includes a resource configuration index identifier;
  • a communication unit configured to perform communication according to the resource configuration in the resource allocation information.
  • the communication unit when the communication request is a D2D communication request, the communication unit is configured to:
  • the session resource configuration corresponding to the resource configuration index identifier is used as a resource of D2D communication for D2D communication.
  • the resource allocation information further includes D2D communication security configuration information, where the D2D communication security configuration information includes encryption and decryption parameter.
  • the resource allocation information further includes a modulation coding mode MCS Information, the MCS information is used to indicate a modulation and coding manner used by the UE when using the resource allocated by the resource allocation information.
  • the communication unit when the communication request is a group communication request, the communication unit is configured to:
  • the session resource configuration corresponding to the resource configuration index identifier is configured as a group communication resource for group communication.
  • the group communication request carries a first group identifier
  • the receiving unit receives the broadcast message sent by the base station
  • the multimedia broadcast multicast service single-frequency network MBSFN area configuration message included in the group further includes the first group identifier, which is used for monitoring resource positions of other UEs in the group.
  • the user equipment according to any one of the seventh aspect of the seventh aspect, the sixth aspect of the seventh aspect, the resource configuration index Known as the temporary mobile group identifier TMGI, or,
  • the resource configuration index identifier is a TMGI and an MBSFN area identifier, or the resource configuration index identifier is an MBSFN area identifier, a physical multicast channel PMCH identifier, and a session identifier.
  • the resource allocation information is controlled by the radio resource RRC
  • the message or medium access control MAC control unit or physical downlink control channel PDCCH is carried.
  • the eighth aspect of the present invention provides a network side device, including:
  • a receiving unit configured to receive a communication request sent by the user equipment UE, where the communication request is
  • a sending unit configured to send resource allocation information to the UE according to the communication request, where the resource allocation information includes a resource configuration index identifier, so that the UE performs communication according to the resource configuration in the resource allocation information.
  • the resource allocation information further includes
  • the D2D communication security configuration information includes an encryption and decryption parameter.
  • the resource allocation information further includes modulation coding mode MCS information, where the MCS information is used. And a modulation coding manner used when the UE allocates resources allocated by the resource allocation information.
  • the group communication request carries the first group of identifiers, and further includes:
  • a processing unit configured to allocate a group communication resource to the UE according to the group communication request; the sending unit is further configured to broadcast, to the UE, a broadcast message that includes a multimedia broadcast multicast service single frequency network MBSFN area configuration message, the MBSFN
  • the area configuration message includes the first group identifier, and is used for resource locations of other UEs in the group to monitor group communication.
  • the resource configuration index is temporarily moved.
  • Group identification TMGI or,
  • the resource configuration index identifier is a TMGI and an MBSFN area identifier, or
  • the resource configuration index identifier is an MBSFN area identifier, a physical multicast channel PMCH identifier, and a session identifier.
  • the network side device according to any one of the fourth aspect of the eighth aspect, wherein in the fifth possible implementation manner of the eighth aspect, the resource allocation information is controlled by radio resources
  • the RRC message or the medium access control MAC control unit or the physical downlink control channel PDCCH is carried.
  • the resource allocation method, device, and system provided by the embodiments of the present invention extend the MBSFN area configuration message, where the MBSFN area configuration message includes an MBSFN subframe configuration and a physical multicast channel information table, and the MBSFN subframe configuration includes the first subframe allocation. And a physical resource block group allocated to the MBSFN area corresponding to each subframe in the first subframe allocation information, where the physical multicast channel information table includes each subframe in the second subframe allocation information and the second subframe allocation information. Corresponding physical resource block group assigned to the physical multicast channel.
  • the resource partitioning granularity is reduced from the sub-frame level to the physical resource block group level in the sub-frame, and the allocation rule of the resource between the multiple sessions is re-defined, so that the MBMS mechanism can efficiently carry the low delay. And / or low rate of business.
  • Embodiment 1 is a flowchart of Embodiment 1 of a resource allocation method according to the present invention
  • Embodiment 2 is a flowchart of Embodiment 2 of a resource allocation method according to the present invention
  • Embodiment 3 is a flowchart of Embodiment 3 of a resource allocation method according to the present invention.
  • Embodiment 4 is a flowchart of Embodiment 4 of a resource allocation method according to the present invention.
  • FIG. 5 is a flowchart of Embodiment 5 of a resource allocation method according to the present invention.
  • Embodiment 6 is a flowchart of Embodiment 6 of a resource allocation method according to the present invention.
  • Embodiment 7 is a schematic structural diagram of Embodiment 1 of a user equipment according to the present invention.
  • Embodiment 8 is a schematic structural diagram of Embodiment 1 of a network side device according to the present invention
  • 9 is a schematic structural diagram of Embodiment 2 of a user equipment according to the present invention
  • Embodiment 2 of a network side device according to the present invention
  • FIG. 11 is a schematic structural diagram of Embodiment 3 of a network side device according to the present invention.
  • Embodiment 3 of a user equipment according to the present invention is a schematic structural diagram of Embodiment 3 of a user equipment according to the present invention.
  • FIG. 13 is a schematic structural diagram of Embodiment 4 of a network side device according to the present invention.
  • Embodiment 4 of a user equipment according to the present invention is a schematic structural diagram of Embodiment 4 of a user equipment according to the present invention.
  • Embodiment 5 is a schematic structural diagram of Embodiment 5 of a network side device according to the present invention.
  • FIG. 16 is a schematic structural diagram of Embodiment 6 of a network side device according to the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention.
  • the embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • FIG. 1 is a flowchart of a first embodiment of a resource allocation method according to the present invention.
  • a UE is used as an execution entity as an example.
  • the method in this embodiment may include:
  • the UE acquires an MBSFN area configuration message sent by the network side device, where the MBSFN area configuration message includes an MBSFN subframe configuration and a physical multicast channel information table.
  • the network side device may be a base station, a multicast control entity, or the like, and the broadcast message sent by the network side device includes an MBSFN area configuration message.
  • the MBSFN subframe configuration includes a physical resource block group allocated to the MBSFN area corresponding to each subframe in the first subframe allocation information and the first subframe allocation information, where the physical multicast channel information table includes the second subframe allocation information. And a physical resource block group allocated to the physical multicast channel corresponding to each of the second subframe allocation information.
  • the subframe allocated in the second subframe allocation information is also included in the subframe allocated by the first subframe allocation information, that is, the subframe allocated to the physical multicast channel information table is from the subframe allocated to the MBSFN region. Selected subset.
  • the first subframe allocation information is the first and second physical resource block groups of the first subframe, and the third and fourth physical resource block groups of the third subframe
  • the subframe to which the second subframe allocation information can be allocated may be selected from the first subframe and the third subframe, and if the selected first subframe, the physical resource block group in the second subframe allocation information can only be from the first subframe. Select from 2 physical resource block groups.
  • the physical resource block group is a continuous N physical resource block, where N is a parameter carried in the MBSFN subframe configuration, or N is a parameter carried in a notification message broadcasted by the network side device, or N is a preset parameter.
  • the UE receives the MTCH according to the MBSFN area configuration message.
  • the method before the receiving, by the S102 UE, the MTCH according to the MBSFN area configuration message, the method further includes:
  • the UE receives the MSI according to the MBSFN area configuration message.
  • the UE receives the MTCH according to the MBSFN area configuration message and the MSI.
  • resources of one physical multicast channel are allocated based on MSI among multiple sessions, but an MSI period is less than 80 ms, and the MSI includes each of physical multicast channels.
  • the logical channel number of the session is allocated to the physical resource block group corresponding to the logical channel number, and the physical resource block group allocation is allocated by using a bitmap. For example, each bit corresponds to a physical resource block group allocated to the physical multicast channel in the MSI scheduling period, the first bit corresponds to the first physical resource block group, and the physical resource block groups of different subframes are arranged in the order of the subframe.
  • the resource allocation corresponding to the logical channel number LCID1 is "10101010”
  • the resource allocation corresponding to LCID2 is "01000100”
  • the resource allocation corresponding to LCID3 is "00010001”. It can also be assigned to the physical multiple in each corresponding MSI scheduling period. The subframe of the broadcast channel. In this way, the time interval of the physical resource block group assigned to the session corresponding to one LCID can be reduced, so that the session can carry services that are more sensitive to delay requirements. For example, VoIP services can also reduce the resources allocated to a session corresponding to an LCID, so that the session can efficiently carry lower-rate services.
  • the period of the MSI is not shortened and is still 80 ms.
  • the transmission delay is reduced by allocating resources for a certain logical channel in an MSI period, and the MSI includes a physical multicast channel.
  • the logical channel number of each session in the corresponding channel number The physical resource block group is allocated, and the same logical channel number in one MSI period corresponds to a plurality of allocated physical resource block groups. That is, the same session is scheduled multiple times in one MSI period.
  • the time interval of resources allocated to a session corresponding to one LCID can be reduced, so that the session can carry services that are more sensitive to delay requirements. It is also possible to reduce the resources allocated to a session corresponding to one LCID, so that the session can efficiently carry lower-rate services.
  • the resources of one physical multicast channel are not based on the MSI, but are based on the session configuration, and specifically: the physical multicast channel information table further includes The physical resource block group allocated to the session corresponding to each of the three subframe allocation information and the third subframe allocation information. That is, which physical resource block groups indicating which subframes of the physical multicast channel are allocated to the session.
  • the subframe allocated in the third subframe allocation information is also included in the subframe allocated by the second subframe allocation information. That is, the subframe allocated to the session is a subset selected from the subframes allocated to the physical multicast channel information table.
  • the physical resource block group allocated to the session corresponding to the subframe in the third subframe allocation information is also included in the physical resource block group allocated to the physical multicast channel information table corresponding to the subframe in the second subframe allocation information. . That is, the physical resource block group allocated to the session is a selected subset of the physical resource block groups allocated to the physical multicast channel information table from the subframe to which it belongs. For example: in a physical multicast channel information table resource allocation period, the second subframe allocation information is the first and second physical resource block groups of the first subframe, and the third and fourth physical resources of the third subframe.
  • the block group, the subframe to which the third subframe allocation information can be allocated may be selected from the first and third subframes, and if the selected first subframe, the physical resource block group in the third subframe allocation information can only Select from the first and second physical resource block groups.
  • the UE can receive the MTCH according to the MBSFN subframe configuration and the physical multicast channel information table and the session configuration.
  • the Physical Multicast Channel Information Table may also contain Modulation and Coding (MCS) information, which is used to indicate the MCS that the session can use.
  • MCS Modulation and Coding
  • the physical resource block group is, for example, a continuous A physical resource block, where A is a parameter carried in the physical multicast channel information table, or A is a parameter carried in a notification message broadcasted by the network side device, or A is a pre- Set the parameters.
  • A is a parameter carried in the physical multicast channel information table
  • A is a parameter carried in a notification message broadcasted by the network side device
  • A is a pre- Set the parameters.
  • the physical multicast channel information table may further include an allocation part corresponding to each subframe in the third subframe allocation information and the third subframe allocation information.
  • the physical resource block group of words may be used to carry services that are more sensitive to delay requirements, and some sessions still carry services that are not sensitive to delay requirements according to the prior art.
  • the allocation of the foregoing subframe may be a downlink subframe or an uplink subframe, and the first subframe allocation information or the second subframe allocation information or the third subframe allocation information further includes an upper and lower Line instructions.
  • the MBSFN area configuration message includes an MBSFN subframe configuration and a physical multicast channel information table
  • the MBSFN subframe configuration includes the first subframe allocation information and the first sub- a physical resource block group allocated to the MBSFN area corresponding to each subframe in the frame allocation information
  • the physical multicast channel information table includes a corresponding physical quantity corresponding to each subframe in the second subframe allocation information and the second subframe allocation information.
  • the physical resource block group of the multicast channel is reduced from the sub-frame level to the physical resource block group level in the sub-frame, and the allocation rule of resources among multiple sessions is re-defined, so that the MBMS mechanism can be efficiently carried low. Delay and/or low rate traffic.
  • FIG. 2 is a flowchart of a second embodiment of a resource allocation method according to the present invention.
  • a network side device is used as an execution entity as an example.
  • the method in this embodiment may include:
  • the network side device generates an MBSFN area configuration message, where the MBSFN area configuration message includes an MBSFN subframe configuration and a physical multicast channel information table.
  • the MBSFN subframe configuration includes a physical resource block group allocated to the MBSFN area corresponding to each subframe in the first subframe allocation information and the first subframe allocation information, where the physical multicast channel information table includes the second subframe allocation information. And a physical resource block group allocated to the physical multicast channel corresponding to each of the second subframe allocation information.
  • the subframe allocated in the second subframe allocation information is also included in the subframe allocated by the first subframe allocation information, that is, the subframe allocated to the physical multicast channel information table is from the subframe allocated to the MBSFN region. Selected subset.
  • the first subframe allocation information is the first and second physical resource block groups of the first subframe, and the third and fourth physical resource block groups of the third subframe
  • the subframe to which the second subframe allocation information can be allocated may be selected from the first subframe and the third subframe, and if the selected first subframe, the physical resource block group in the second subframe allocation information can only be from the first subframe. Select from 2 physical resource block groups.
  • the physical resource block group is a continuous N physical resource block, where N is a parameter carried in the MBSFN subframe configuration, or N is a parameter carried in a notification message broadcasted by the network side device, or N is a preset parameter.
  • the network side device sends an MBSFN area configuration message to the UE, so that the UE receives the MTCH according to the MBSFN area configuration message.
  • the network side device sends an MSI to the UE, so that the UE configures the message according to the MBSFN area.
  • the MSI receives the MTCH.
  • resources of one physical multicast channel are allocated based on MSI among multiple sessions, but an MSI period is less than 80 ms, and the MSI includes each of physical multicast channels.
  • the logical channel number of the session is allocated to the physical resource block group corresponding to the logical channel number, and the physical resource block group allocation is allocated by using a bitmap. For example, each bit corresponds to a physical resource block group allocated to the physical multicast channel in the MSI scheduling period, the first bit corresponds to the first physical resource block group, and the physical resource block groups of different subframes are arranged in the order of the subframe.
  • the resource allocation corresponding to the logical channel number LCID1 is "10101010”
  • the resource allocation corresponding to LCID2 is "01000100”
  • the resource allocation corresponding to LCID3 is "00010001”. It can also be assigned to the physical multiple in each corresponding MSI scheduling period. The subframe of the broadcast channel. In this way, the time interval of the physical resource block group assigned to the session corresponding to one LCID can be reduced, so that the session can carry services that are more sensitive to delay requirements. For example, VoIP services can also reduce the resources allocated to a session corresponding to an LCID, so that the session can efficiently carry lower-rate services.
  • the period of the MSI is not shortened and is still 80 ms.
  • the transmission delay is reduced by allocating resources for a certain logical channel in an MSI period, and the MSI includes a physical multicast channel.
  • the logical channel number of each session is allocated to the physical resource block group corresponding to the logical channel number, and the same logical channel number in one MSI period corresponds to a plurality of allocated physical resource block groups. That is, the same session is scheduled multiple times in one MSI period.
  • the multicast broadcast service scheduling information message sent by the multicast control unit (MCE) to the base station is carried Based on the service type, the base station identifies that the service needs to allocate resources multiple times on a certain logical channel based on the service type.
  • MCE multicast control unit
  • the time interval of resources allocated to a session corresponding to one LCID can be reduced, so that the session can carry services that are more sensitive to delay requirements. It is also possible to reduce the resources allocated to a session corresponding to one LCID, so that the session can efficiently carry lower-rate services.
  • the resources of one physical multicast channel are not based on the MSI, but are based on the session configuration, and specifically: the physical multicast channel information table further includes The physical resource block group allocated to the session corresponding to each of the three subframe allocation information and the third subframe allocation information. That is, which physical resource block groups indicating which subframes of the physical multicast channel are allocated to the session.
  • the subframe allocated in the third subframe allocation information is also included in the subframe allocated by the second subframe allocation information. That is, the subframe allocated to the session is a subset selected from the subframes allocated to the physical multicast channel information table.
  • the physical resource block group allocated to the session corresponding to the subframe in the third subframe allocation information is also included in the physical resource block group allocated to the physical multicast channel information table corresponding to the subframe in the second subframe allocation information. . That is, the physical resource block group allocated to the session is a selected subset of the physical resource block groups allocated to the physical multicast channel information table from the subframe to which it belongs. For example: in a physical multicast channel information table resource allocation period, the second subframe allocation information is the first and second physical resource block groups of the first subframe, and the third and fourth physical resources of the third subframe.
  • the block group, the subframe to which the third subframe allocation information can be allocated may be selected from the first and third subframes, and if the selected first subframe, the physical resource block group in the third subframe allocation information can only Select from the first and second physical resource block groups.
  • the UE can receive the MTCH according to the MBSFN subframe configuration and the physical multicast channel information table and the session configuration.
  • the Physical Multicast Channel Information Table may also contain Modulation and Coding (MCS) information, which is used to indicate the MCS that the session can use.
  • MCS Modulation and Coding
  • the physical resource block group is, for example, a continuous A physical resource block, and A is a parameter carried in the physical multicast channel information table, or A is a parameter carried in a notification message broadcasted by the network side device, or A is Pre-set parameters.
  • A is a parameter carried in the physical multicast channel information table
  • A is a parameter carried in a notification message broadcasted by the network side device
  • A is Pre-set parameters.
  • the physical multicast channel information table may further include an allocation part corresponding to each subframe in the third subframe allocation information and the third subframe allocation information.
  • the physical resource block group of words may be used to carry services that are more sensitive to delay requirements, and some sessions still carry services that are not sensitive to delay requirements according to the prior art.
  • the allocation of the foregoing subframe may be a downlink subframe or an uplink subframe, and the first subframe allocation information or the second subframe allocation information further includes uplink and downlink indication information.
  • the resource allocation method provided in this embodiment is to extend the MBSFN area configuration message included in the broadcast message generated by the network side device, where the MBSFN area configuration message includes an MBSFN subframe configuration and a physical multicast channel information table, and the MBSFN subframe configuration includes a physical resource block group allocated to the MBSFN area corresponding to each subframe in the first subframe allocation information and the first subframe allocation information, where the physical multicast channel information table includes second subframe allocation information and second subframe allocation information Each of the subframes corresponds to a physical resource block group assigned to the physical multicast channel.
  • the resource partitioning granularity is reduced from the sub-frame level to the physical resource block group level in the sub-frame, and the allocation rule of the resource in multiple sessions is re-defined, so that the MBMS mechanism can efficiently carry low delays. And / or low rate of business.
  • Embodiment 3 is a flowchart of Embodiment 3 of a resource allocation method according to the present invention. As shown in FIG. 3, the method in this embodiment may include:
  • the network side device generates an MBSFN area configuration message, where the MBSFN area configuration message includes an MBSFN subframe configuration and a physical multicast channel information table.
  • the MBSFN subframe configuration includes a physical resource block group allocated to the MBSFN area corresponding to each subframe in the first subframe allocation information and the first subframe allocation information, where the physical multicast channel information table includes the second subframe allocation information. And a physical resource block group allocated to the physical multicast channel corresponding to each of the second subframe allocation information.
  • the physical resource block group is a continuous N physical resource block, and N is a parameter carried in the MBSFN subframe configuration, or N is a parameter carried in a notification message broadcasted by the network side device, or N is a preset parameter.
  • the network side device sends an MBSFN area configuration message to the UE.
  • the UE acquires an MBSFN area configuration message sent by the network side device.
  • the UE receives the MTCH according to the MBSFN area configuration message.
  • resources of one physical multicast channel are allocated based on MSI among multiple sessions, but an MSI period is less than 80 ms, and the MSI includes each of physical multicast channels.
  • the logical channel number of the session is allocated to the physical resource block group corresponding to the logical channel number, and the physical resource block group allocation is allocated by using a bitmap.
  • the method further includes:
  • the UE receives the MSI according to the MBSFN subframe configuration and the physical multicast channel information table.
  • the difference from the first implementable manner is that the period of the MSI is not shortened, and is still 80 ms, which is reduced by allocating resources for a certain logical channel multiple times in one MSI period.
  • the transmission delay, the MSI includes the physical resource block group allocation corresponding to the logical channel number and the logical channel number of each session in the physical multicast channel, and the same logical channel number in one MSI period corresponds to the allocated physical resource block group. That is, the same session is scheduled multiple times in one MSI period.
  • the resources of one physical multicast channel are not based on the MSI, but are based on the session configuration, and specifically: the physical multicast channel information table further includes The physical resource block group allocated to the session corresponding to each of the three subframe allocation information and the third subframe allocation information. That is, which physical resource block groups indicating which subframes of the physical multicast channel are allocated to the session.
  • the UE can receive the MTCH according to the MBSFN subframe configuration and the physical multicast channel information table and the session configuration.
  • the Physical Multicast Channel Information Table may also include Modulation and Coding Mode (MCS) information, which is used to indicate the MCS that the session can use.
  • MCS Modulation and Coding Mode
  • the physical multicast channel information table may further include a physical resource block group allocated to the partial session corresponding to each of the third subframe allocation information and the third subframe allocation information.
  • FIG. 4 is a flowchart of Embodiment 4 of a resource allocation method according to the present invention.
  • a UE is used as an execution entity as an example.
  • the method in this embodiment may include:
  • the UE sends a communication request to the network side device, where the communication request is a D2D communication request or a group communication request.
  • the UE receives resource allocation information that is sent by the network side device according to the communication request, where the resource allocation information includes a resource configuration index identifier.
  • the resource configuration index is identified as Temporary Mobile Group Identity (TMGI), or The resource configuration index is identified as TMGI and the multimedia broadcast multicast service single frequency network MBSFN area identifier, or
  • the resource configuration index identifier is an MBSFN area identifier, a PMCH identifier, and a session identifier.
  • the UE performs communication according to the resource configuration in the resource allocation information.
  • S403 is specifically:
  • the UE performs D2D communication by using the session resource configuration corresponding to the resource configuration index identifier as a resource of the D2D communication.
  • resource allocation information may further include D2D communication security configuration information, and the D2D communication security configuration information includes encryption and decryption parameters.
  • the resource allocation information may further include modulation and coding scheme (MCS) information, and the MCS information is used to indicate a modulation and coding scheme used by the UE when using the resource allocated by the resource allocation information.
  • MCS modulation and coding scheme
  • S403 is specifically:
  • S403b The UE performs group communication by using the session resource configuration corresponding to the resource configuration index identifier as the resource of the group communication.
  • the group communication request carries the first group of identifiers
  • the MBSFN area configuration message included in the broadcast message sent by the base station that is received by the UE further includes a first group identifier, which is used by other UEs in the group to monitor group communication. Resource location.
  • the resource allocation information may be controlled by a radio resource control (Radio Resource Control, RRC message for short) or a Medium Access Control (MAC) control unit or a physical downlink control channel (Physical Downlink Control Channel). , referred to as: PDCCH) carry.
  • RRC message Radio Resource Control
  • MAC Medium Access Control
  • PDCCH Physical Downlink Control Channel
  • the UE sends a communication request to the network side device, where the communication request is a D2D communication request or a group communication request, the resource allocation information includes a resource configuration index identifier, and the UE performs communication according to the resource configuration in the resource allocation information.
  • the resource allocation information includes a resource configuration index identifier
  • the UE performs communication according to the resource configuration in the resource allocation information.
  • FIG. 5 is a flowchart of Embodiment 5 of a resource allocation method according to the present invention.
  • a network side device is used as an execution entity as an example.
  • the method in this embodiment may include: S501, network side device receiving The communication request sent by the UE, the communication request is a D2D communication request or a group communication request.
  • S502 The network side device sends resource allocation information to the UE according to the communication request, so that the UE performs communication according to the resource configuration in the resource allocation information.
  • the resource allocation information includes a resource configuration index identifier.
  • the resource configuration index identifier is TMGI, or
  • the resource configuration index identifier is TMGI and the multimedia broadcast multicast service single frequency network MBSFN area identifier, or
  • the resource configuration index identifier is an MBSFN area identifier, a PMCH identifier, and a session identifier.
  • the resource allocation information may further include D2D communication security configuration information, and the D2D communication security configuration information includes encryption and decryption parameters.
  • resource allocation information may also contain MCS information, and the MCS information is used to indicate
  • the modulation and coding method adopted by the UE when using the resources allocated by the resource allocation information is not limited.
  • the group communication request carries the first group of identifiers, and the method further includes:
  • the network side device allocates the group communication resource to the UE according to the group communication request, and broadcasts the broadcast message including the MBSFN area configuration message to the UE.
  • the MBSFN area configuration message includes the first group identifier, and is used for monitoring resources of other group monitoring UEs in the group. position.
  • the resource allocation information may be carried by an RRC message or a MAC control unit or a PDCCH.
  • the resource allocation method provided in this embodiment receives the communication request sent by the UE by using the network side device, and the communication request is a D2D communication request or a group communication request, and sends resource allocation information to the UE according to the communication request, so that the UE is configured according to the resource allocation information.
  • the resource configuration is communicated.
  • FIG. 6 is a flowchart of Embodiment 6 of the resource allocation method of the present invention. As shown in FIG. 6, the method in this embodiment may include:
  • the UE sends a communication request to the network side device, where the communication request is a D2D communication request or a group communication request.
  • the network side device sends resource allocation information to the UE according to the received communication request, where the resource allocation information includes a resource configuration index identifier.
  • the resource configuration index identifier is TMGI, or the resource configuration index identifier is TMGI and the multimedia broadcast multicast service single frequency network MBSFN area identifier, or the resource configuration index identifier is an MBSFN area identifier, a PMCH identifier, and a session identifier.
  • the UE performs communication according to the resource configuration in the received resource allocation information.
  • the S603 is specifically: the UE performs the D2D communication by using the session resource configuration corresponding to the resource configuration index identifier as the resource of the D2D communication.
  • the resource allocation information may also include D2D communication security configuration information, and the D2D communication security configuration information includes encryption and decryption parameters.
  • the resource allocation information may further include modulation and coding scheme (MCS) information, and the MCS information is used to indicate a modulation and coding scheme used by the UE when using the resource allocated by the resource allocation information.
  • MCS modulation and coding scheme
  • S603 is specifically: the UE performs group communication by using the session resource configuration corresponding to the resource configuration index identifier as the resource of the group communication.
  • An implementation manner is that the group communication request carries the first group of identifiers, and further includes:
  • the network side device allocates a group communication resource to the UE according to the group communication request, and broadcasts a broadcast message including the MBSFN area configuration message to the UE.
  • the MBSFN area configuration message includes a first group identifier, and is used by other UEs in the group to listen to the group communication resource. position.
  • the resource allocation information may be carried by an RRC message or a MAC control unit or a PDCCH.
  • FIG. 7 is a schematic structural diagram of Embodiment 1 of a user equipment according to the present invention.
  • the user equipment in this embodiment may include: a processing unit 11 and a receiving unit 12, where the processing unit 11 is configured to read a network side device to send
  • the MBSFN area configuration message of the multimedia broadcast multicast service single frequency network in the broadcast message, the MBSFN area configuration message includes an MBSFN subframe configuration and a physical multicast channel information table.
  • the MBSFN subframe configuration includes a physical resource block group allocated to the MBSFN area corresponding to each subframe in the first subframe allocation information and the first subframe allocation information, where the physical multicast channel information table includes the second subframe allocation information.
  • the physical resource block group is a continuous N physical resource block, and N is a parameter carried in the MBSFN subframe configuration, or N is a parameter carried in a notification message broadcasted by the network side device, or N is a preset parameter.
  • the receiving unit 12 is configured to receive, by the UE, the MTCH according to the MBSFN area configuration message.
  • a physical multicast channel is used as a first implementable manner.
  • the resource is allocated based on the MSI between the multiple sessions, but the MSI period is less than 80 ms, and the MSI includes the physical resource block group allocation corresponding to the logical channel number of each session in the physical multicast channel and the logical channel number, and the physical resource block group
  • the allocation is done in the form of a bitmap.
  • the receiving unit 12 is also used to:
  • the MBSFN subframe configuration and the physical multicast channel information table receive the multicast channel scheduling information MSI.
  • the receiving unit 12 is specifically configured to: receive the MTCHo according to the MBSFN area configuration message and the MSI
  • the difference from the first implementable manner is that the period of the MSI is not shortened, and is still 80 ms, which is reduced by allocating resources for a certain logical channel multiple times in one MSI period.
  • the transmission delay, the MSI includes the physical resource block group allocation corresponding to the logical channel number and the logical channel number of each session in the physical multicast channel, and the same logical channel number in one MSI period corresponds to the allocated physical resource block group. That is, the same session is scheduled multiple times in one MSI period.
  • the receiving unit 12 is specifically configured to receive the MTCH according to the MBSFN area configuration message and the MSI.
  • the resources of one physical multicast channel are not based on the MSI, but are based on the session configuration, and specifically: the physical multicast channel information table further includes The physical resource block group allocated to the session corresponding to each of the three subframe allocation information and the third subframe allocation information.
  • the receiving unit 12 can receive the MTCH according to the MBSFN subframe configuration and the physical multicast channel information table and the session configuration.
  • the Physical Multicast Channel Information Table may also contain Modulation and Coding (MCS) information, which is used to indicate the MCS that the session can use.
  • MCS Modulation and Coding
  • the physical multicast channel information table may further include a physical resource block group allocated to the partial session corresponding to each of the third subframe allocation information and the third subframe allocation information.
  • the receiving unit 12 is specifically configured to receive according to the MBSFN area configuration message and the MSI.
  • the allocation of the foregoing subframe may be a downlink subframe or an uplink subframe, and the first subframe allocation information or the second subframe allocation information further includes uplink and downlink indication information.
  • the device of this embodiment may be used to implement the technical solution of the method embodiment shown in FIG.
  • the implementation principle is similar and will not be described here.
  • the user equipment provided in this embodiment expands the MBSFN area configuration message generated by the network side device, reduces the resource division granularity from the subframe level to the physical resource block group level in the subframe, and re-defines the resource in multiple Inter-session allocation rules, so that the MBMS mechanism can efficiently carry low-latency and/or low-rate services.
  • FIG. 8 is a schematic structural diagram of Embodiment 1 of a network side device according to the present invention.
  • the network side device in this embodiment may include: a generating unit 21 and a sending unit 22, where the generating unit 21 is configured to generate an MBSFN area configuration.
  • the message, the MBSFN area configuration message contains an MBSFN subframe configuration and a physical multicast channel information table.
  • the sending unit 22 is configured to send an MBSFN area configuration message to the user equipment UE, so that the UE receives the multicast service channel MTCH according to the MBSFN area configuration message.
  • the MBSFN subframe configuration includes a physical resource block group allocated to the MBSFN area corresponding to each subframe in the first subframe allocation information and the first subframe allocation information, where the physical multicast channel information table includes the second subframe allocation information. And a physical resource block group allocated to the physical multicast channel corresponding to each of the second subframe allocation information.
  • the physical resource block group is a continuous N physical resource block, and N is a parameter carried in the MBSFN subframe configuration, or N is a parameter carried in a notification message broadcasted by the network side device, or N is a preset parameter.
  • the sending unit 22 is further configured to: send an MSI to the UE, so that the UE receives the MTCH according to the MBSFN area configuration message and the MSI.
  • resources of one physical multicast channel are allocated based on MSI among multiple sessions, but an MSI period is less than 80 ms, and the MSI includes each of physical multicast channels.
  • the logical channel number of the session is allocated to the physical resource block group corresponding to the logical channel number, and the physical resource block group allocation is allocated by using a bitmap.
  • the period of the MSI is not shortened and is still 80 ms.
  • the transmission delay is reduced by allocating resources for a certain logical channel in an MSI period.
  • the MSI includes physical multicast.
  • the logical channel number of each session in the channel is allocated to the physical resource block group corresponding to the logical channel number, and the same logical channel number in one MSI period corresponds to a plurality of allocated physical resource block groups.
  • the resource of one physical multicast channel, which is allocated between multiple sessions, is no longer based on the MSI, but is based on the session configuration, specifically: physical multicast channel information
  • the table further includes a physical resource block group allocated to the session corresponding to each of the third subframe allocation information and the third subframe allocation information.
  • the physical multicast channel information table may further include a physical resource block allocated to the partial session corresponding to each subframe in the third subframe allocation information and the third subframe allocation information. group.
  • the allocation of the foregoing subframe may be a downlink subframe or an uplink subframe, and the first subframe allocation information or the second subframe allocation information further includes uplink and downlink indication information.
  • the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 2, and the implementation principle is similar, and details are not described herein again.
  • the network side device provided in this embodiment expands the MBSFN area configuration message generated by the network side device, reduces the resource division granularity from the sub-frame level to the physical resource block group level in the sub-frame, and re-defines the resource.
  • the allocation rules between sessions so that the MBMS mechanism can efficiently carry low-latency and/or low-rate services.
  • the communication system provided by the embodiment of the present invention includes the user equipment shown in FIG. 7 and the network side device shown in FIG. 8.
  • FIG. 9 is a schematic structural diagram of Embodiment 2 of a user equipment according to the present invention.
  • the user equipment in this embodiment may include: a sending unit 31, a receiving unit 32, and a communication unit 33, where the sending unit 31 is used for the network.
  • the side device sends a communication request, and the communication request is a D2D communication request or a group communication request.
  • the receiving unit 32 is configured to receive resource allocation information that is sent by the network side device according to the communication request, where the resource allocation information includes a resource configuration index identifier.
  • the communication unit 33 is configured to communicate according to the resource configuration in the resource allocation information.
  • the communication unit 33 is used to:
  • the session resource configuration corresponding to the resource configuration index identifier is used as D2D communication resources for D2D communication.
  • the resource allocation information also includes D2D communication security configuration information, and the D2D communication security configuration information includes encryption and decryption parameters.
  • the resource allocation information further includes a modulation and coding mode MCS information, and the MCS information is used to indicate a modulation and coding mode used by the UE when using the resource allocated by the resource allocation information.
  • the communication unit 33 is configured to:
  • the session resource configuration corresponding to the resource configuration index identifier is configured as a group communication resource for group communication.
  • the MBSFN area configuration message of the multimedia broadcast multicast service single frequency network included in the broadcast message sent by the receiving unit 32 further includes a first group identifier, which is used to Other UEs in the group monitor the resource location of the group communication.
  • the resource configuration index identifier is a temporary mobility group identifier TMGI, or the resource configuration index identifier is a TMGI and an MBSFN area identifier, or the resource configuration index identifier is an MBSFN area identifier, a physical multicast channel PMCH identifier, and Session ID.
  • the resource allocation information is carried by the RRC message or the MAC Control Unit or the PDCCH.
  • the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 4, and the implementation principle is similar, and details are not described herein again.
  • the user equipment provided by the embodiment of the present invention sends a communication request to the network side device by using the sending unit, and the communication request is a D2D communication request or a group communication request, and the receiving unit receives the resource allocation information sent by the network side device according to the communication request, where the resource allocation information includes The resource configuration index identifies that the communication unit communicates according to the resource configuration in the resource allocation information.
  • a specific resource configuration that is, a resource configuration index identifier
  • FIG. 10 is a schematic structural diagram of Embodiment 2 of a network side device according to the present invention.
  • the network side device in this embodiment may include: a receiving unit 41 and a sending unit 42, where the receiving unit 41 is configured to receive the user equipment UE.
  • the communication request sent, the communication request is a D2D communication request or a group communication request.
  • the sending unit 42 is configured to send resource allocation information to the UE according to the communication request, where the resource allocation information includes a resource configuration index identifier, so that the UE performs communication according to the resource configuration in the resource allocation information.
  • the resource allocation information also includes D2D communication security configuration information, and the D2D communication security configuration information includes encryption and decryption parameters.
  • the resource allocation information further includes a modulation and coding mode MCS information, and the MCS information is used to indicate a modulation and coding mode used by the UE when using the resource allocated by the resource allocation information.
  • the group communication request carries the first group identifier, and may further include: a processing unit 43, where the processing unit 43 is configured to allocate the group communication resource to the UE according to the group communication request. .
  • the sending unit 42 is further configured to broadcast, to the UE, a broadcast message that includes an MBSFN area configuration message, where the MBSFN area configuration message includes a first group of identifiers, and is used by other UEs in the group to monitor resource locations of the group communication.
  • the resource configuration index identifier is a temporary mobility group identifier TMGI, or the resource configuration index identifier is a TMGI and an MBSFN area identifier, or the resource configuration index identifier is an MBSFN area identifier, a PMCH identifier, and a session identifier.
  • the resource allocation information may be carried by an RRC message or a MAC control unit or a PDCCH.
  • the device of the embodiment shown in FIG. 10 and FIG. 11 can be used to implement the technical solution of the method embodiment shown in FIG. 5, and the implementation principle is similar, and details are not described herein again.
  • the network side device provided in this embodiment can implement fast D2D communication or resource allocation of group communication by including a specific resource configuration, that is, a resource configuration index identifier, in the resource allocation information.
  • the communication system provided by the embodiment of the present invention includes the user equipment shown in FIG. 9 and the network side device shown in FIG. 10 or FIG.
  • FIG. 12 is a schematic structural diagram of Embodiment 3 of a user equipment according to the present invention.
  • the user equipment in this embodiment may include: a processor 51 and a receiver 52, where the processor 51 is configured to read a network side device to send
  • the MBSFN area configuration message of the multimedia broadcast multicast service single frequency network in the broadcast message, the MBSFN area configuration message includes an MBSFN subframe configuration and a physical multicast channel information table.
  • the MBSFN subframe configuration includes a physical resource block group allocated to the MBSFN area corresponding to each subframe in the first subframe allocation information and the first subframe allocation information, where the physical multicast channel information table includes the second subframe allocation information.
  • the physical resource block group is a continuous N physical resource block, where N is a parameter carried in the MBSFN subframe configuration, or N is a parameter carried in a notification message broadcasted by the network side device, or N is a preset parameter.
  • the receiver 52 is configured for the UE to receive the MTCH according to the MBSFN area configuration message.
  • resources of one physical multicast channel are allocated based on MSI among multiple sessions, but an MSI period is less than 80 ms, and the MSI packet is used.
  • the physical resource block group corresponding to the logical channel number of each session in the physical multicast channel and the logical channel number is allocated, and the physical resource block group allocation is allocated by using a bitmap.
  • the multicast channel scheduling information MSI is received according to the MBSFN subframe configuration and the physical multicast channel information table before receiving the multicast traffic channel PMCH according to the MBSFN area configuration message.
  • the receiver 52 is specifically configured to receive the MTCH according to the MBSFN area configuration message and the MSI.
  • the difference from the first implementable manner is that the period of the MSI is not shortened, and is still 80 ms, which is reduced by allocating resources for a certain logical channel multiple times in one MSI period.
  • the transmission delay, the MSI includes the physical resource block group allocation corresponding to the logical channel number and the logical channel number of each session in the physical multicast channel, and the same logical channel number in one MSI period corresponds to the allocated physical resource block group. That is, the same session is scheduled multiple times in one MSI period.
  • the resources of one physical multicast channel are not based on the MSI, but are based on the session configuration, and specifically: the physical multicast channel information table further includes The physical resource block group allocated to the session corresponding to each of the three subframe allocation information and the third subframe allocation information.
  • the receiver 52 can receive the MTCH according to the MBSFN subframe configuration and the physical multicast channel information table and the session configuration.
  • the physical multicast channel information table may further include modulation coding mode (MCS) information, and the MCS information is used to indicate the MCS that the session can use.
  • the physical resource block group is, for example, a continuous A physical resource block.
  • the physical multicast channel information table may further include a physical resource block group allocated to the partial session corresponding to each of the third subframe allocation information and the third subframe allocation information.
  • the allocation of the foregoing subframe may be a downlink subframe or an uplink subframe, and the first subframe allocation information or the second subframe allocation information further includes uplink and downlink indication information.
  • the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 1.
  • the implementation principle is similar, and details are not described herein again.
  • FIG. 13 is a schematic structural diagram of Embodiment 4 of a network side device according to the present invention.
  • the network side device in this embodiment may include: a processor 61 and a transmitter 62, where the processor 61 is configured to generate an MBSFN area configuration.
  • the message, the MBSFN area configuration message includes an MBSFN subframe configuration and a physical multicast channel information table.
  • the transmitter 62 is configured to send an MBSFN area configuration message to the user equipment UE, so that the UE receives the MTCH according to the MBSFN area configuration message.
  • the MBSFN subframe configuration includes a physical resource block group allocated to the MBSFN area corresponding to each subframe in the first subframe allocation information and the first subframe allocation information, where the physical multicast channel information table includes the second subframe allocation information. And a physical resource block group allocated to the physical multicast channel corresponding to each of the second subframe allocation information.
  • the physical resource block group is a continuous N physical resource block, and N is a parameter carried in the MBSFN subframe configuration, or N is a parameter carried in a notification message broadcasted by the network side device, or N is a preset parameter.
  • the transmitter 62 is further configured to: send an MSI to the UE, so that the UE receives the MTCH according to the MBSFN area configuration message and the MSI.
  • resources of one physical multicast channel are allocated based on MSI among multiple sessions, but an MSI period is less than 80 ms, and the MSI includes each of physical multicast channels.
  • the logical channel number of the session is allocated to the physical resource block group corresponding to the logical channel number, and the physical resource block group allocation is allocated by using a bitmap.
  • the period of the MSI is not shortened and is still 80 ms.
  • the transmission delay is reduced by allocating resources for a certain logical channel in an MSI period, and the MSI includes a physical multicast channel.
  • the logical channel number of each session is allocated to the physical resource block group corresponding to the logical channel number, and the same logical channel number in one MSI period corresponds to a plurality of allocated physical resource block groups.
  • the resources of one physical multicast channel are not based on the MSI, but are based on the session configuration, and specifically: the physical multicast channel information table further includes The physical resource block group allocated to the session corresponding to each of the three subframe allocation information and the third subframe allocation information.
  • the physical multicast channel information table may further include a physical resource block allocated to the partial session corresponding to each subframe in the third subframe allocation information and the third subframe allocation information. group.
  • the allocation of the foregoing subframe may be a downlink subframe or an uplink subframe.
  • the frame, where the first subframe allocation information or the second subframe allocation information further includes uplink and downlink indication information.
  • the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 2, and the implementation principle is similar, and details are not described herein again.
  • the network side device provided in this embodiment expands the MBSFN area configuration message generated by the network side device, reduces the resource division granularity from the sub-frame level to the physical resource block group level in the sub-frame, and re-defines the resource.
  • the allocation rules between sessions so that the MBMS mechanism can efficiently carry low-latency and/or low-rate services.
  • the communication system provided by the embodiment of the present invention includes the user equipment shown in FIG. 12 and the network side device shown in FIG.
  • FIG. 14 is a schematic structural diagram of Embodiment 4 of the user equipment according to the present invention.
  • the user equipment in this embodiment may include: a transmitter 71, a receiver 72, and a processor 73, where the transmitter 71 is used to connect to the network.
  • the side device sends a communication request, and the communication request is a D2D communication request or a group communication request.
  • the receiver 72 is configured to receive resource allocation information that is sent by the network side device according to the communication request, where the resource allocation information includes a resource configuration index identifier.
  • the processor 73 is configured to communicate according to the resource configuration in the resource allocation information.
  • the processor 73 is configured to:
  • the session resource configuration corresponding to the resource configuration index identifier is used as D2D communication resources for D2D communication.
  • the resource allocation information also includes D2D communication security configuration information, and the D2D communication security configuration information includes encryption and decryption parameters.
  • the resource allocation information further includes a modulation and coding mode MCS information, and the MCS information is used to indicate a modulation and coding mode used by the UE when using the resource allocated by the resource allocation information.
  • the processor 73 is configured to:
  • the session resource configuration corresponding to the resource configuration index identifier is used as the group communication resource for group communication.
  • the MBSFN area configuration message of the multimedia broadcast multicast service single frequency network included in the broadcast message sent by the base station received by the receiver 72 further includes a first group identifier, which is used to Other UEs in the group monitor the resource location of the group communication.
  • the resource configuration index identifier is a temporary mobility group identifier TMGI
  • the resource configuration index identifier is a TMGI and an MBSFN area identifier
  • the resource configuration index identifier is an MBSFN area identifier, a physical multicast channel PMCH identifier, and a session identifier.
  • the resource allocation information is carried by the RRC message or the MAC Control Unit or the PDCCH.
  • the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 4, and the implementation principle is similar, and details are not described herein again.
  • the user equipment provided by the embodiment of the present invention sends a communication request to the network side device by using a transmitter, where the communication request is a D2D communication request or a group communication request, and the receiver receives resource allocation information sent by the network side device according to the communication request, where the resource allocation information includes The resource configuration index identifies that the processor communicates according to the resource configuration in the resource allocation information.
  • a specific resource configuration that is, a resource configuration index identifier
  • the network side device in this embodiment may include: a receiver 81 and a transmitter 82, where the receiver 81 is configured to receive the user equipment UE.
  • the communication request sent, the communication request is a D2D communication request or a group communication request.
  • the transmitter 82 is configured to send resource allocation information to the UE according to the communication request, where the resource allocation information includes a resource configuration index identifier, so that the UE performs communication according to the resource configuration in the resource allocation information.
  • the resource allocation information also includes D2D communication security configuration information, and the D2D communication security configuration information includes encryption and decryption parameters.
  • the resource allocation information further includes a modulation and coding mode MCS information, and the MCS information is used to indicate a modulation and coding mode used by the UE when using the resource allocated by the resource allocation information.
  • FIG. 16 is a schematic structural diagram of Embodiment 6 of the network side device according to the present invention.
  • the network side device in this embodiment is configured to carry the first group identifier according to the network side device shown in FIG.
  • the method may include: a processor 83, configured to allocate a group communication resource to the UE according to the group communication request.
  • the transmitter 82 is further configured to broadcast, to the UE, a broadcast message that includes an MBSFN area configuration message, where the MBSFN area configuration message includes a first group of identifiers, and is used by other UEs in the group to monitor resource locations of group communication.
  • the resource configuration index identifier is a temporary mobile group identifier TMGI, or a resource configuration.
  • the index identifier is a TMGI and an MBSFN area identifier, or the resource configuration index identifier is an MBSFN area identifier, a physical multicast channel PMCH identifier, and a session identifier.
  • the resource allocation information may be carried by an RRC message or a MAC control unit or a PDCCH.
  • the device of the embodiment shown in FIG. 15 and FIG. 16 can be used to implement the technical solution of the method embodiment shown in FIG. 5, and the implementation principle is similar, and details are not described herein again.
  • the network side device provided in this embodiment can implement fast D2D communication or resource allocation of group communication by including a specific resource configuration, that is, a resource configuration index identifier, in the resource allocation information.
  • the communication system provided by the embodiment of the present invention includes the user equipment shown in FIG. 14 and the network side device shown in FIG. 15 or FIG. 16.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a hardware plus software functional unit.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the method of various embodiments of the present invention. Partially Step.
  • the foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program code. .

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

Abstract

Selon les modes de réalisation de la présente invention, celle-ci concerne un procédé, un dispositif et un système d'allocation de ressources, le procédé comprenant les étapes suivantes : un UE (User Equipement, Équipement d'Utilisateur) obtient un message de configuration de zone MBSFN (Multimedia Broadcast over Single Frequency Network, Réseau de Diffusion Multimédia sur Fréquence Unique) envoyé par un dispositif côté réseau, le message de configuration de zone MBSFN contenant une configuration de sous-trame MBSFN et une Liste d'Informations de Canaux de Multidiffusion Physiques, la configuration de sous-trame MBSFN contenant des premières informations d'allocation de sous-trame et le groupe de blocs de ressources physiques alloué à la zone MBSFN et correspondant à chaque trame dans les premières informations d'allocation de sous-trame, et la Liste d'Informations de Canaux de Multidiffusion Physiques contenant des secondes informations d'allocation de sous-trame et le groupe de blocs de ressources physiques alloué au canal de multidiffusion physique et correspondant à chaque trame dans les secondes informations d'allocation de sous-trame. Conformément aux modes de réalisation de la présente invention, un mécanisme MBMS peut acheminer de manière efficace un trafic à faible temps de retard et/ou à faible débit.
PCT/CN2013/084337 2013-09-26 2013-09-26 Procédé, dispositif et système pour l'allocation de ressources WO2015042834A1 (fr)

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