WO2014000188A1 - Procédé, appareil et système pour la transmission et l'analyse d'un message d'attribution de ressources temps-fréquence - Google Patents

Procédé, appareil et système pour la transmission et l'analyse d'un message d'attribution de ressources temps-fréquence Download PDF

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Publication number
WO2014000188A1
WO2014000188A1 PCT/CN2012/077649 CN2012077649W WO2014000188A1 WO 2014000188 A1 WO2014000188 A1 WO 2014000188A1 CN 2012077649 W CN2012077649 W CN 2012077649W WO 2014000188 A1 WO2014000188 A1 WO 2014000188A1
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WIPO (PCT)
Prior art keywords
prb
terminal
indication
allocated
unit
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PCT/CN2012/077649
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English (en)
Chinese (zh)
Inventor
吴伟民
张利
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2012/077649 priority Critical patent/WO2014000188A1/fr
Priority to CN201280000535.8A priority patent/CN102870481B/zh
Publication of WO2014000188A1 publication Critical patent/WO2014000188A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to communications technologies, and in particular, to a method, a method, and a system for transmitting a time-frequency resource allocation message.
  • the cable access system it is divided into a broadcast channel, a shared channel and an uplink reserved channel, wherein the broadcast channel and the uplink reserved channel are mainly used as transmission channels of uplink and downlink control information, and the uplink and downlink shared channels mainly transmit data information.
  • Time-frequency resource information of the shared channel as a physical resource block
  • the cable access system is divided into two parts: the head end and the terminal.
  • the resource allocation process is centralized at the head end.
  • the time-frequency resource allocation information needs to be constructed to notify the terminal resource allocation result, that is, the media access plan needs to be constructed ( Media Access Plan, referred to as MAP) information.
  • the terminal After receiving the MAP information, the terminal obtains its own time-frequency resources by parsing the allocation result of the uplink and downlink PRBs, and knows the allocation of time-frequency resources in the entire system.
  • the channel is characterized by frequency selectivity. To ensure its frequency selective diversity gain and increase system capacity, a large number of non-contiguous resource allocations occur.
  • the bitmap of the time-frequency resource of the current time-frequency resource allocation is collectively identified, that is, the PRB location map.
  • the absolute location of the PRB is used as an indication identifier, and each user equipment is instructed to indicate the PRB resource and the allocated time-frequency resource allocated in the current resource allocation process.
  • the user equipment parses the bitmap of the allocated PRB and the PRB assigned to the user from the received time-frequency resource allocation message.
  • the PRB location indication method used by the existing time-frequency resource allocation message uses the absolute location of the PRB as the location of the PRB allocated by the terminal identifier, and is only suitable for continuous resource allocation, and the non-contiguous resource allocation indication occupies less resources. , indicating that the efficiency is low.
  • Summary of the invention provides a method, a method, and a device for transmitting a time-frequency resource allocation message, which are used to solve the defect that the PRB position indication method used in the current time-frequency resource allocation message has low indication efficiency.
  • the embodiment of the present invention provides a method for transmitting a time-frequency resource allocation message, including: determining, by the head end, the degree of density of the PRB allocated to the second terminal for the second terminal to which the second terminal is allocated. And the PRB location indication information of the second terminal is used to indicate the location of the PRB allocated to the second terminal; the indication type includes a bitmap. Instructing, affirmative offset indication or a negative offset indication, the affirmative offset indication indicating an absolute position offset of the PRB allocated for the second terminal, the negative offset indication indicating that the second terminal is not allocated An absolute position offset of the PRB, the bitmap indicating an absolute position of the PRB allocated for the second terminal;
  • the head end constructs a PRB location indication unit for the second terminal according to the indication type and an absolute location of the PRB allocated to the second terminal; and the PRB location indication unit of the second terminal includes the second a PRB location indication information of the terminal and type indication information indicating an indication type used by the PRB location indication information;
  • the head end After the head end adds the PRB location indication unit to the time-frequency resource allocation message, the head end sends the time-frequency resource allocation message to the second terminal.
  • the embodiment of the present invention further provides a time-frequency resource allocation message sending apparatus, including: a type determining module, configured to: for a second terminal that has been allocated a PRB, according to a distribution of PRBs allocated for the second terminal Determining the type of the indication that the PRB location indication information of the second terminal needs to be used, and the PRB location indication information of the second terminal is used to indicate the location of the PRB allocated to the second terminal;
  • the type includes a bitmap indication, a positive offset indication or a negative offset indication, the positive offset indication indicating an absolute position offset of the PRB allocated for the second terminal, the negative offset indication being used to indicate that the An absolute position offset of the PRB allocated by the second terminal, where the bitmap indicates an absolute position of the PRB allocated for the second terminal;
  • a constructing module configured to configure a PRB location indication unit for the second terminal according to the indication type and an absolute location of a PRB allocated to the second terminal; and the PRB location indication unit of the second terminal includes the PRB location indication information of the second terminal and used to indicate the Type indication information indicating the type of indication used by the PRB location indication information;
  • Adding a module configured to add the PRB location indication unit to a time-frequency resource allocation message
  • a sending module configured to: after adding the PRB location indication unit to the time-frequency resource allocation message, send the time-frequency resource allocation message to the second terminal.
  • an embodiment of the present invention further provides a method for parsing a time-frequency resource allocation message, including:
  • the time-frequency resource allocation message includes a PRB location indication unit of the terminal, where the PRB location indication unit of the terminal includes a location for indicating a PRB allocated for the terminal PRB location indication information and type indication information for indicating an indication type used by the PRB location indication information;
  • the indication type includes a bitmap indication, a positive offset indication, or a negative offset indication, the positive offset Determining an absolute position offset indicating a PRB allocated for the terminal, the negative offset indicating an absolute position offset indicating a PRB not allocated for the terminal, the bitmap indicating a PRB indicating the terminal allocation Absolute position
  • the terminal parses the absolute position of the PRB allocated by the head end to the terminal according to the PRB location indication unit of the terminal.
  • an embodiment of the present invention further provides a time-frequency resource allocation message parsing apparatus, including:
  • a receiving module configured to receive a time-frequency resource allocation message sent by the head end, where the time-frequency resource allocation message includes a PRB location indication unit of the device, where the PRB location indication unit of the device includes PRB location indication information of the location of the PRB and type indication information indicating the type of indication used by the PRB location indication information;
  • the indication type includes a bitmap indication, a positive offset indication, or a negative offset indication, The affirmative offset indication is used to indicate an absolute position offset of the PRB allocated for the device, the negative offset indication is used to indicate an absolute position offset of the PRB not allocated for the device, the bitmap indication is used to indicate the device The absolute position of the assigned PRB;
  • a parsing module configured to parse an absolute position of the PRB allocated by the head end to the device according to the PRB position indication unit of the device.
  • the embodiment of the present invention further provides a time-frequency resource allocation message transmission system package.
  • the PRB location indication information of each terminal in the time-frequency resource allocation message sent by the head end is applicable to the PRB distribution density degree of each terminal, instead of using a unified indication method for the PRB location indication information of all terminals, so that the time-frequency resource is used.
  • the resources used to allocate messages are greatly reduced, thus significantly reducing the indicated resources.
  • 1A is a flow chart of a method for transmitting a time-frequency resource allocation message according to an embodiment of the present invention
  • 1B is a flow chart of another method for sending a time-frequency resource allocation message according to an embodiment of the present invention.
  • 2A is a flow chart of still another method for transmitting a time-frequency resource allocation message according to an embodiment of the present invention
  • Figure 2B is a flow chart of step 24 of Figure 2A;
  • FIG. 3 is a flow chart of a method for constructing a time-frequency resource allocation message according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a method for analyzing a time-frequency resource allocation message according to an embodiment of the present invention
  • FIG. 5 is a flowchart of another method for analyzing a time-frequency resource allocation message according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a device for transmitting a time-frequency resource allocation message according to an embodiment of the present disclosure
  • FIG. 7 is a schematic structural diagram of an apparatus for analyzing a time-frequency resource allocation message according to an embodiment of the present disclosure
  • FIG. 8 is a schematic structural diagram of another time-frequency resource allocation message transmission system according to an embodiment of the present invention. detailed description
  • FIG. 1 is a flowchart of a method for transmitting a time-frequency resource allocation message according to an embodiment of the present invention. As shown in FIG. 1A, the method provided in this embodiment includes:
  • Step 11 For any second terminal to which the PRB is allocated, the head end determines, according to the degree of distribution of the PRB allocated to the second terminal, the indication type that needs to be used for transmitting the PRB location indication information of the second terminal; a bitmap indication, a positive offset indication or a negative offset indication, the positive offset indication indicating an absolute position offset of the PRB allocated for the second terminal, and a negative offset indication indicating the PRB not allocated for the first terminal Absolute position offset, the bitmap indication is used to indicate the absolute position of the PRB assigned to the first terminal.
  • the second terminal in the embodiment of the present invention may be any terminal to which the PRB is allocated by the head end.
  • the PRB position indication information of the second terminal is used to indicate the location of the PRB allocated for the second terminal.
  • the PRB allocated to the second terminal in the embodiment of the present invention may be an uplink PRB or a downlink PRB. Specifically, it can be distinguished whether it is an uplink PRB or a downlink PRB by the number segment of the PRB.
  • the determining, by the head end, the type of the indication that the PRB location indication information of the second terminal needs to be used according to the distribution degree of the PRB allocated to the second terminal may include: if the PRB distribution allocated for the second terminal is uniform, the head end determines The indication type that the PRB location indication information allocated for the second terminal needs to be used is a bitmap indication; if the PRB distribution allocated for the second terminal is dense, the indication type that the PRB location indication information allocated for the second terminal needs to be used is Negative offset indication; if the PRB distribution allocated for the second terminal is dispersed, the indication type that the PRB location indication information allocated for the second terminal needs to be used is a positive offset indication. Therefore, depending on the type of indication used by the PRB position indication information, the position of the PRB indicated by the PRB position indication information may be an absolute position or a relative position, that is, a positive offset or a negative offset between absolute positions.
  • Step 12 The head end constructs a PRB location indication unit of the second terminal according to the indication type and the absolute location of the PRB allocated for the second terminal.
  • the PRB location indication unit of the second terminal includes the PRB location indication information of the second terminal and is used for A type indication information indicating an indication type to which the PRB position indication information is used.
  • the display type and the absolute position of the PRB allocated for the second terminal construct a PRB position indication unit of the second terminal, that is, a PRB configuration PRB position indication unit allocated for the second terminal.
  • the PRB location indication unit of the second terminal includes PRB location indication information of the second terminal, and further includes type indication information indicating an indication type used by the PRB location indication information of the second terminal. If the indication type of the PRB location indication information of the second terminal is a positive offset indication or a negative offset indication, the PRB location indication information of the second terminal includes an absolute indicating the first PRB allocated for the second terminal. Location information.
  • multiple PRB location indication units may be used to indicate the location of the PRB of one terminal, where one PRB location indication unit only indicates to the terminal.
  • the location of the allocated partial PRB, the PRB location indication information in the different PRB location indication unit of one terminal may use different indication types.
  • Step 11 is specifically: the head end is configured according to the number of PRBs allocated to the second terminal in the first preset number range, and the number of PRBs allocated to the second terminal in the second preset number range.
  • the number of PRBs allocated by the second terminal determines the number of PRB location indication units of the second terminal, and determines the indication type used by the PRB location indication information in each PRB location indication unit.
  • Step 12 is specifically: the head end constructs each PRB position indication unit of the second terminal according to the indication type used by each PRB position indication unit of the second terminal and the absolute position of the PRB allocated for the second terminal,
  • Each PRB location indication unit of the second terminal includes type indication information of the indication type used by the PRB location indication information and the PRB location indication information.
  • the first preset number is a PRB position indication information in a PRB position indication unit, and the number of PRBs that can be indicated by the bitmap indication, and the second preset number is a PRB position in a PRB position indication unit.
  • the indication information indicates the number of PRBs that can be represented when a positive offset indication or a negative offset indication is used.
  • Step 13 After adding the PRB location indication unit to the time-frequency resource allocation message, the head end sends a time-frequency resource allocation message to the second terminal.
  • the head end may also add the identifier information of the terminal to the time-frequency resource allocation message; wherein the identifier information of the terminal is used to distinguish different terminals, for example, may be allocated to the terminal when the terminal randomly accesses User temporary identification.
  • the PRB position indication of the second terminal Whether the message uses a bitmap indication, a positive offset indication, or a negative offset indication is determined according to the degree of density of the PRB allocated for the second terminal. Therefore, the PRB location indication information of the second terminal in the time-frequency resource allocation message sent by the head end is applicable to the PRB distribution density of the first terminal, so that the resources occupied by the time-frequency resource allocation message are greatly reduced, thereby greatly saving the indication. Resources.
  • the head end may carry a PRB position indication unit of all terminals to which the PRB has been allocated in a time-frequency resource allocation message.
  • the absolute position of the first PRB allocated to each terminal may not be indicated for each terminal in the PRB location indication unit of each terminal.
  • the relative position of the first PRB assigned to each terminal is numbered 1.
  • FIG. 1B is the same as the method for constructing the PRB position indicating unit of each terminal in the embodiment, and is the method provided in steps 11 and 12. As shown in FIG. 1B, before step 11, the method further includes:
  • Step a The head end constructs a PRB position indicating unit of the first terminal, wherein the method of constructing the PRB position indicating unit of the first terminal is the same as the method of constructing the PRB position indicating unit of the second terminal. For details, refer to step 11 and step 12.
  • the first terminal, the second terminal, and the third terminal in the embodiment of the present invention may be any terminal to which the PRB is allocated by the head end, and the relationship between the first terminal, the second terminal, and the third terminal is: The absolute position of the first PRB allocated by the terminal before the absolute position of the first PRB allocated to the second terminal, and the absolute position of the first PRB allocated for the second terminal is the first PRB allocated for the third terminal. Before the absolute position.
  • the method further includes:
  • Step b The head end renumbers the relative positions of the PRBs allocated for the third terminal according to the order of the absolute positions of the first PRBs allocated for the terminal, so that the relative positions of the first PRBs allocated for the third terminal are The number is 1 and the offset between the relative positions of the renumbered PRBs is the same as the offset between the absolute positions before renumbering.
  • the offset between the relative positions of the renumbered PRBs is the same as the offset between the absolute positions before the numbers. For example, the absolute positions of the remaining PRBs are numbered 3, 4, 6, 8, 9, 10, and 13, respectively, then, for these After the remaining PRBs are renumbered, the absolute positions of the remaining PRBs are 1, 2, 4, 6, 7, 8, and 11, respectively. Although the number of the PRB changes after renumbering, the offset between the PRBs is not A change has occurred. By renumbering the remaining PRBs, the relative position of the first PRB assigned to all other terminals except the first terminal is 1 , and the terminal with the number 1 of the absolute position of the first PRB is the first. terminal,
  • Step 13 is specifically: the head end adds the identifier information of the PRB location indication unit of the second terminal and the second terminal to the time-frequency resource allocation message, where the PRB location indication unit of the second terminal sorts the time-frequency resource allocation message at The PRB position of the first terminal indicates the unit.
  • the PRB location indication unit of the second terminal precedes the ordering of the time-frequency resource allocation message by the PRB location indication unit of the third terminal. That is to say, the PRB position indicating unit of each terminal in the time-frequency resource allocation message is arranged in the order of the absolute positions of the first PRB allocated for the terminal.
  • the identification information of the terminal is used to distinguish different terminals, for example, may be a temporary identifier of the user allocated to the terminal when the terminal randomly accesses.
  • the PRB position indication information of the PRB position indication unit of the terminal uses a positive offset indication or a negative offset indication
  • the PRB location indication information does not need to indicate the absolute position of the first PRB allocated for the terminal
  • the default position of the first PRB assigned by the terminal is 1 and the default is 1 for the absolute position of the first PRB allocated by the first terminal.
  • the PRB location indication unit of each terminal is sorted according to the order of the absolute positions of the first PRBs allocated for the terminal. Therefore, when the terminal parses, the terminal is approximately absolute for the first PRB.
  • the absolute position of the PRB of all terminals in front of itself can determine the absolute position of its first PRB.
  • the head end provides a method for distinguishing its own PRB location indication unit in the time-frequency resource allocation message.
  • An implementation method is that, in the time-frequency resource allocation message, the PRB location indication unit of each terminal is previously added with a respective user temporary identifier, which is used to distinguish which terminal the PRB location indication unit is.
  • the user temporary identifier is a temporary identifier assigned when the terminal randomly accesses. After receiving the time-frequency resource allocation message, the terminal can find its own PRB location indication unit by using the temporary identifier of the user.
  • the user temporary identifiers of all terminals are sequentially written in the user temporary identifier list field, and the PRB location indication units of all terminals are written in the PRB location indication unit list field in the same order as the user temporary identifier.
  • the terminal traverses the user temporary identifier list field according to its own user temporary identifier. In sequence, it may be determined that the PRB position indication unit of the own PRB indicates the order of the unit list field in the PRB position, thereby finding its own PRB position indication unit.
  • the PRB position indication units of all the terminals to which the PRB is allocated by the head end are sequentially constructed according to the order of the absolute positions of the first PRBs allocated to the terminal, and the method for constructing the PRB position indication unit of any terminal is the same. .
  • the PRB position indication unit is constructed for one terminal, the relative positions of the remaining RPBs are renumbered so that the relative position number of the first PRB allocated for each terminal is 1, and the PRB position indication unit of each terminal It is added to the time-frequency resource allocation message according to the order of the absolute positions of the first PRBs allocated for the terminal. Therefore, the head end does not need to allocate the first PRB for each terminal in the PRB position indicating unit of each terminal.
  • the PRB location indication information is constructed, thereby reducing the overhead of the control information occupied by the time-frequency resource allocation message, and saving resources.
  • FIG. 2A is a flow chart of still another method for transmitting a time-frequency resource allocation message according to an embodiment of the present invention.
  • This embodiment is an embodiment which is further refined in the corresponding embodiment of FIG. 1B.
  • the method provided in this embodiment includes:
  • Step 21 Sort the terminals according to the order of the absolute positions of the first PRBs allocated for the terminal, and number the sorted terminals.
  • Step 22 Set the number i of the first terminal after sorting to 1.
  • Step 23 Whether i is greater than the number of terminals to which the PRB is assigned by the head end; if step 26 is performed, otherwise step 24 is performed.
  • Step 24 Determine, according to the degree of distribution of the PRB allocated for the i-th terminal, an indication type used for transmitting the PRB location indication information of the i-th terminal, and allocate the identifier according to the determined indication type and the i-th terminal.
  • the PRB position indicating unit constructed for the i-th terminal includes PRB position indication information of the i-th terminal and type indication information for indicating the type of indication of the PRB position indication information.
  • the PRB location indication information of the i-th terminal is used to indicate the location of the PRB allocated for the ith terminal, and the PRB of the ith terminal indicated by the PRB location indication information is different according to the indication type of the PRB location indication information.
  • the position which can be an absolute position, or a relative position, that is, a positive offset or a negative offset between absolute positions.
  • Step 25 After the PRB position indication unit of the i-th terminal is constructed, the remaining The PRB is renumbered and accumulates i. Go back to step 23 to continue execution.
  • the remaining PRBs herein refer to PRBs allocated to the i+1th to Nth terminals of the PRB position indicating unit, wherein N is the number of all terminals to which the PRB is allocated by the head end.
  • the offset between the relative positions of the renumbered PRBs is the same as the offset between the absolute positions before the numbers.
  • Step 26 After the PRB location indication unit of all the terminals is configured, the user temporary identifier and the PRB location indication unit of each terminal are added to the time-frequency resource allocation message, and the PRB location indication unit of the i-th terminal is in the time-frequency resource.
  • the ordering in the bifurcation message is after the PRB position indication unit of the i-1th terminal.
  • the PRB location indication unit of the terminal in the time-frequency resource allocation message sent by the headend sorts according to the order of the absolute positions of the first PRB allocated for the terminal.
  • the PRB location indication units of all terminals are ordered according to the absolute position of the first PRB allocated for each terminal; except for the first terminal, any other terminal is instructed according to the PRB position of the preceding terminal.
  • the unit determines the absolute position of the first PRB assigned to itself.
  • step 23 may be: whether i is equal to the total number of terminals to which the PRB has been allocated; if step 26 is performed, otherwise step 24 is performed. That is, it is not necessary to construct a PRB position indicating unit of the last terminal after sorting. Because, based on the total number of PRBs and the position of the PRB allocated by all the terminals in the foregoing, the location of the PRB allocated by the last terminal is pushed out.
  • the PRB location indication unit of the i-th terminal After the PRB location indication unit of the i-th terminal is constructed, the remaining PRBs are renumbered, and the number of the first PRB of each subsequent terminal is 1 and the PRB location of all terminals in the time-frequency resource allocation message is
  • the indicating unit sorts the positions of the first PRB allocated for the terminal, so that the latter terminal can determine the absolute position of the first PRB allocated to itself according to the absolute position of the PRB allocated by the previous terminal, and thus each terminal
  • the PRB location indication unit does not need to indicate the location of the first PRB of each terminal, thereby reducing the overhead occupied by the subsequent PRB location indication unit.
  • the PRBs allocated by one terminal may be distributed in some areas, but are densely distributed or dispersed in other parts. If the unified indication type indicates the PRB of the terminal with different distribution of each area, the PRB position indication information will be occupied. Resources, thereby reducing PRB bits Indicates the indication efficiency of the indication information. To further reduce the resources occupied by the indication information and improve the indication efficiency of the PRB location indication information, multiple PRB location indication units may be used to indicate the location of the PRB of one terminal, where one PRB location indication unit only indicates to the terminal that it is assigned The location of the partial PRB, the PRB location indication information in different PRB location indication units of one terminal may use different indication types. Therefore, as shown in FIG.
  • step 24 may specifically include: Step 241: The head end is in the second preset number range according to the number of PRBs allocated to the i th terminal in the first preset number range. Determining the number of PRB position indication units of the i-th terminal and determining each PRB position indication of the i-th terminal, the number of PRBs allocated for the i-th terminal and the number of PRBs allocated for the i-th terminal The PRB position indication information in the unit indicates the type of indication used.
  • the first preset number is a PRB position indication information in a PRB position indication unit, and the number of PRBs that can be indicated by the bitmap indication, and the second preset number is a PRB position in a PRB position indication unit.
  • the indication information indicates the number of PRBs that can be represented when a positive offset indication or a negative offset indication is used.
  • Step 242 Construct each PRB location indication unit for the i-th terminal according to the indication type used by each PRB indication unit determined for the i-th terminal and the absolute location of the PRB allocated by the i-th terminal.
  • Each PRB position indicating unit of the i-th terminal includes type indication information of the respective PRB child indication information and the indication type of the PRB child instruction information.
  • each PRB position indication unit is composed of two parts, wherein the first 2 bits represent the indication type of the remaining 14 bits.
  • the remaining bits may use a bitmap indication or a positive offset indication or a positive offset indication.
  • Which type of indication is used by a PRB location indication unit is determined based on the number of allocated PRBs in 14 consecutive PRBs. If the indication type is 00, that is, the bitmap indication is used, the next 14 bits describe the allocation of 14 consecutive PRBs. If the indication type is 01 or 10. It is a negative offset indication or a positive offset indication, and the next 14 bits are defined as 3 offset fields, and the positions of the allocated PRBs are indicated by 3 offset fields.
  • the number of bits of the three offset fields is 4, 5, and 5, respectively, representing three positive offset values or negative offset values, thereby indicating the positions of the plurality of PRBs. If the positive offset indication or the negative offset indication indicates the relative position of the allocated PRB, the three offset values of the three offset fields in one PRB position indicating unit may represent the relative positions of the four PRBs; Bitmap indication indicates assigned The absolute position of the PRB, after removing 2 bits representing the indication type, can be followed by a PRB position indication unit indicating the absolute position of 14 PRBs. Table 1 is a PRB position indicating unit defined in an embodiment of the present invention.
  • L denote the number of PRBs that can be represented by 14 bits in a PRB position indication unit when indicated by a bitmap, and use K+1 to indicate 14 bits in a PRB position indication unit, using a negative offset indication or The number of PRBs that can be represented when the offset indication is affirmative, wherein 14 bits are defined as K offset fields.
  • the location number of the PRB to which the first terminal is assigned is: 1, 5, 9, 20, 21, 22, 25, 26.
  • the first PRB position indication information element of the first terminal is as shown in the following table:
  • the instruction type used by the second PRB position indication unit of the first terminal is determined by the number of PRBs allocated to the first terminal in consecutive 14 PRBs starting from 21 in the position number.
  • L PRB No. 21-34
  • K ⁇ KL-K indicating that the PRB distribution assigned to the first terminal is relatively uniform in the region where the PRB number is 20 to 33, and therefore, the bitmap indicates the position of the allocated PRB.
  • the 14 bits start from left to right to indicate a PRB numbered 21 to a PRB numbered 34, a bit of 0 indicates that the corresponding PRB is unassigned, and a bit of 1 indicates that the corresponding PRB is allocated.
  • the second PRB bit of the first terminal The indication unit is shown in the following table.
  • the first terminal has two PRB position indication units, and each PRB position indication unit uses a different indication type.
  • the position number of the PRB to which the first terminal is assigned is 1-5, 7-20, 22, and 29.
  • I>LK indicating that the PRB allocated to the first terminal is densely distributed in the area where the PRB number is 2 to 15, and the negative offset indication is used to indicate the position of the PRB that is not allocated to the first terminal in the area.
  • the first PRB position indicating unit has indicated the allocation of PRBs of numbers 1 to 23, and the PRB numbered 29 has not indicated yet, and it is necessary to construct the second PRB position indicating unit.
  • the indication type used by the second PRB position indication unit of the first terminal is determined by the number of PRBs allocated to the first terminal within 14 PRBs consecutively numbered from 24.
  • the terminal in order to enable the terminal to receive the time-frequency resource allocation message, it may be determined which PRB location indication unit is a PRB location indication unit indicating the location of the PRB allocated for itself, and the user temporary identifiers of all terminals may be sequentially written in In the identification list field, the PRB position indication units of all terminals are written in the PRB position indication unit list field in the same order as the user temporary identification.
  • the time-frequency resource allocation message includes an identifier list field and a PRB location indication unit list field, and a PRB location indication unit count list field including the number of PRB location indication units of all terminals is added to the time-frequency resource allocation message.
  • the method for constructing a time-frequency resource allocation message as shown in FIG. 3 includes:
  • Step 31 According to the order of the absolute positions of the first PRBs allocated for each terminal, The user temporary identifiers of all terminals are sorted, and the identifier list fields are constructed according to the sorted user temporary identifiers.
  • the identifier list field includes the user temporary identifier of each terminal, and the user temporary identifier of each terminal is sorted according to the absolute position of the first PRB allocated for each terminal.
  • Step 32 The head end sorts all the PRB position indication units according to the order of the absolute positions of the first PRB allocated to each terminal, and constructs the PRB position indication unit list field and the PRB according to the sorted PRB position indication unit.
  • the position indication unit counts the list field.
  • the PRB location indication unit list field includes each PRB location indication unit of all terminals, the PRB location indication unit count list field includes PRB location indication unit count units of all terminals, and the PRB location indication unit count unit is used to record all PRB locations of one terminal
  • the number of the indication units; the PRB position indication unit count list field, the PRB position indication unit between each terminal is sorted according to the order of the position of the first PRB of each terminal; the PRB position indication unit list field
  • the PRB position indicating unit counting unit is sorted in the order of the absolute positions of the first PRB of each terminal.
  • Step 33 The head end adds a user number field, an identifier list field, a PRB location indication unit count list field, and a PRB location indication unit list field to the time-frequency resource allocation message; the user number field is used to indicate all terminals to which the PRB is assigned. The number.
  • FIG. 3 is a variable length IE format definition table 2 corresponding to the time-frequency resource allocation message provided by the embodiment.
  • Table 2 is a variable length IE format used by the time-frequency resource allocation message according to the embodiment of the present invention.
  • the number of users field occupies one byte, indicating the total number of terminals in the uplink PRB MAP or downlink PRB MAP indicating that the PRB is allocated.
  • the identifier list field occupies N bytes, N is the total number of terminals to which the PRB is allocated, and each byte indicates a temporary identifier of the user allocated when a terminal randomly accesses.
  • the user temporary identification number is 0--249, and the unassigned PRB is assigned to a virtual user ID of 250.
  • the PRB position indication unit count list field occupies N/2 bytes, indicating how many PRB position indication units are used by each terminal, and the PRB position indication information unit count of each terminal is 4
  • the bit indicates that two counts of 0000 and 1111 are used for expansion, 0000 indicates 14 PRB position indication units, and the latter PRB position indication unit is also the PRB position indication unit of the user, and 1111 indicates that the user has only assigned one PRB.
  • the terminal only allocates one PRB, it is not necessary to construct a PRB location information element for it, because the number of PRBs allocated for the terminal is 1, and 0001-1110 respectively represent 1 to 14 PRB location indicating units.
  • the PRB position indication information unit list field occupies MX 2 bytes, and M is obtained by all PRB position indication unit counting units in the summation PRB position indication unit count list field, each PRB position indication The unit occupies 2 bytes (16 bits).
  • the PRB location indication information unit list field is composed of PRB location indication units of all terminals.
  • FIG. 4 is a flowchart of a method for parsing a time-frequency resource allocation message according to an embodiment of the present invention. As shown in FIG. 4, the method provided in this embodiment includes:
  • Step 41 The terminal receives the time-frequency resource allocation message sent by the head end, where the time-frequency resource allocation message includes a PRB location indication unit of the terminal, where the PRB location indication unit of the terminal includes PRB location indication information indicating the location of the PRB allocated for the terminal. And type indication information indicating the type of indication used by the PRB position indication information.
  • the indication type includes a bitmap indication, a positive offset indication or a negative offset indication, the positive offset indication is used to indicate an absolute position offset of the PRB allocated for the terminal, and the negative offset indication is used to indicate the PRB not allocated for the terminal. Absolute position offset, the bitmap indication is used to indicate the absolute position of the PRB assigned to the terminal.
  • the indication type of the PRB location indication information of the terminal in the time-frequency resource allocation message needs to be indicated by the bitmap; if the PRB distribution allocated by the terminal is dispersed, the time-frequency resource allocation message
  • the indication type of the PRB location indication information of the terminal in the terminal is a positive offset indication; if the PRB distribution allocated by the head terminal to the second terminal is dense, the indication type of the PRB location indication information of the terminal in the time-frequency resource allocation message needs to be used. To negate the offset indication.
  • the indication type of the PRB position indication information of the terminal is a positive offset indication or a negative offset indication
  • the PRB location indication information of the terminal includes indication information indicating the absolute position of the first PRB allocated for the terminal.
  • Step 42 The terminal allocates the head end to the terminal according to the PRB position indication unit of the terminal. The absolute position of the PRB.
  • the indication type of the PRB location indication information of the terminal in the time-frequency resource allocation message is a positive offset indication or a negative offset indication
  • the terminal after the terminal parses the relative location of the PRB allocated to the terminal, the terminal indicates the location indicated by the PRB location indication information.
  • the absolute position of the first PRB allocated to the terminal is determined as the absolute position of the PRB allocated to the terminal.
  • the time-frequency allocation message sent by the header includes the PRB location indication unit of all terminals to which the PRB is allocated and the identification information of each terminal.
  • Each terminal that receives the time-frequency resource allocation message parses the absolute location of the PRB allocated by the head end to the terminal according to the PRB location indication unit of each terminal in the time-frequency resource allocation message and the identification information of each terminal.
  • the identification information of the terminal is used to distinguish different terminals, for example, may be a temporary identifier of the user allocated to the terminal when the terminal randomly accesses.
  • the terminal When the terminal resolves the absolute position of the PRB allocated by the terminal at the head end, it first determines its own PRB position indication unit in the time-frequency resource allocation message, that is, the PRB position indication unit of the PRB allocated by the head end itself. In the time-frequency resource allocation message, the head end adds a Ming temporary identifier of the corresponding terminal before the PRB location indication unit of each terminal, for identifying which terminal the PRB location indication unit is for. After receiving the time-frequency resource allocation message, the terminal can find its own PRB location indication unit in the time-frequency resource allocation message according to its own user temporary identifier. After the terminal determines its own PRB position indication unit, it parses the PRB indicated by the PRB position indication information in the PRB position indication unit.
  • the indication type used by the PRB position indication information is a bitmap indication, a negative offset indication or a positive offset indication. If the offset indication is negative, the PRB indicated by the PRB location indication information in the parsed PRB location indication unit is a PRB that is not allocated to the terminal, and after the PRBs are excluded from all PRBs, the remaining PRBs are allocated to the PRB. The PRB of the terminal.
  • the PRB location indication information of the terminal in the time-frequency resource allocation message sent by the head end is applicable to the PRB distribution of the terminal, so that the resources occupied by the PRB location indication message are greatly reduced, thereby greatly saving the indication resource.
  • the PRB location indication unit of the terminal in the time-frequency resource message is sorted according to the location of the first PRB allocated to the terminal. As shown in FIG. 5, the terminal according to the PRB location indication unit of each terminal in the time-frequency resource allocation message and each The identification information of the terminal, and the absolute location of the PRB allocated by the terminal to the terminal includes:
  • Step 51 The terminal determines, according to the identifier information of the terminal, the PRB location indication unit of the terminal in the time-frequency resource allocation message; the sequence number of the PRB location indication unit of the terminal in the time-frequency resource allocation message is i.
  • the terminal can determine which PRB location indication unit indicates the absolute location of the PRB for itself by using the temporary identifier of the user. PRB position indication unit.
  • the time-frequency resource allocation message includes an identifier list field, a PRB location indication unit count list field, and a PRB location.
  • the indication unit list field in the PRB position indication unit count list field, the PRB position indication unit between each terminal is sorted according to the position of the first PRB of each terminal; the PRB position indicates the PRB between each terminal in the unit list field
  • the location indication unit counting unit sorts according to the location of the first PRB of each terminal; the user temporary identifiers between the terminals in the identifier list field are sorted according to the location of the first PRB of each terminal.
  • a user temporary identifier occupies one byte in the identifier list field.
  • the order of the own PRB position indication unit counting unit in the PRB position indication unit count list field may be determined, and the order of the own PRB position indication unit in the PRB position indication unit table table field.
  • Step 52 The terminal determines, according to the type indication information and the PRB location indication information in the PRB location indication unit of the terminal, the relative location of all the PRBs allocated to the terminal.
  • the relative location of the first PRB allocated to the terminal is 1.
  • the absolute position of the assigned first PRB is referred to as the first terminal, and the absolute position of the first PRB assigned to the first terminal is 1.
  • one terminal corresponds to multiple PRB location indication units, and different PRB location indication units may use different indication types according to the PRB distribution of the corresponding region.
  • the terminal determines the relative positions of all PRBs allocated to the terminal according to the type indication information in each PRB location indication unit of the terminal and each PRB location indication information.
  • Step 53 Determine, according to the PRB location indication unit of the first terminal to the i-1th terminal, the absolute position of the remaining PRB in all PRBs, and determine the absolute position of the absolute position in the first remaining PRB to be determined by the terminal.
  • the absolute position of the first PRB, the remaining PRB is the PRB allocated for the i-th terminal to the Nth terminal; the sequence number of the PRB location indication unit of the terminal in the time-frequency resource allocation message is i, N is all the head ends The number of terminals to which the PRB is allocated.
  • the first terminal to the i-1th terminal refer to terminals sequentially numbered 1 to i-1.
  • the i-th terminal to the Nth terminal it refers to terminals that are sequentially numbered i to N.
  • the i-th terminal determines the absolute position of the first PRB allocated for itself, it needs to determine the absolute position of the PRB allocated by the head end for all terminals that are sorted before itself, for example, determining the identifier.
  • the user in the list field temporarily identifies the absolute position of the PRB allocated by all terminals before sorting, thereby determining the remaining PRBs in all PRBs, where the remaining PRBs are other than those assigned to the first terminal to the i-1th terminal.
  • All PRBs are also PRBs allocated for the i-th terminal to the Nth terminal.
  • the PRB indication unit of the terminal in the time-frequency resource allocation message is sorted according to the absolute position of the first PRB allocated by the terminal. Therefore, the PRB of the absolute position in the remaining PRB is the first PRB allocated for the i-th terminal. .
  • the second terminal when determining the absolute position of the first PRB allocated to itself, the second terminal first parses the relative position of the PRB allocated to the first terminal according to the PRB position indication unit of the first terminal, because the default is assigned to The absolute position of the PRB of the first terminal is 1, and the absolute position of the PRB of the first terminal can be determined, so that the absolute position of all PRBs allocated to the first terminal can be determined.
  • the absolute position of the remaining PRBs can be determined by the absolute positions of all PRBs allocated to the first terminal, where the remaining PRBs are all PRBs except the PRBs assigned to the first terminal.
  • the PRB indication unit of the terminal in the time-frequency resource allocation message is sorted according to the absolute position of the first PRB allocated by the terminal.
  • the first PRB of the absolute position ranking in the remaining PRB is the first one allocated to the second terminal.
  • PRB Exemplary The absolute position of each PRB assigned to the first terminal is 1, 2, 5, 6, and then the absolute position of the absolute PRB in the remaining PRB except for 1, 2, 5, 6 is 3, then assigned to The absolute position of the first PRB of the two terminals is three.
  • the third terminal may first resolve the allocation to the first according to the PRB position indication unit of the first terminal and the PRB position indication unit of the second terminal.
  • the second terminal analyzes the absolute position of all PRBs allocated to itself, and analyzes the absolute positions of all PRBs assigned to the second terminal.
  • the third terminal determines the PRB of the absolute position ordering in the remaining PRBs, and further determines the absolute position of the first PRB allocated to the third terminal, where the remaining PRBs are allocated to the first terminal.
  • the absolute position of the PRB and the PRB other than the PRB assigned to the second terminal.
  • the i-th terminal when determining the absolute position of the first PRB assigned to itself, the i-th terminal needs to determine the absolute value of the PRB allocated by all the terminals before the user temporary identifier is sorted in the identifier list field. Position, determine the remaining PRB, and further determine the PRB of the absolute position ordering in the remaining PRBs.
  • the absolute position of each PRB assigned to the first terminal and the absolute position of each PRB assigned to the second terminal are 1 , 2, 3, 5, 6, 9, 10, then the absolute position of the absolute PRB in the remaining PRB except for 1, 2, 3, 5, 6, 9, 10 is 4, then assigned to the 3rd
  • the absolute position of the first PRB of the terminal is 4.
  • Step 54 The terminal determines the absolute positions of all the PRBs allocated to the terminal according to the absolute position of the first PRB allocated for the terminal and the relative positions of all PRBs allocated for the terminal.
  • the absolute positions of the other PRBs assigned to the first terminal can be determined.
  • FIG. 6 is a schematic structural diagram of an apparatus for transmitting a time-frequency resource allocation message according to an embodiment of the present invention.
  • the apparatus provided in this embodiment includes: a type determining module 60, a constructing module 61, an adding module 62, and a sending module 63.
  • the type determining module 60 is configured to determine, for the second terminal that has been allocated the PRB, that the PRB location indication information of the second terminal needs to be used according to the degree of distribution of the PRB allocated to the second terminal.
  • Indication type the PRB position indication of the second terminal The information is used to indicate a location of the PRB allocated for the second terminal; the indication type includes a bitmap indication, a positive offset indication, or a negative offset indication, where the positive offset indication is used to indicate that the second terminal is allocated An absolute position offset of the PRB indicating an absolute position offset of the PRB not allocated for the second terminal, the bitmap indicating an absolute position of the PRB allocated for the second terminal.
  • the type determining module 60 is specifically configured to: if the PRB distribution allocated by the device to the second terminal is uniform, determine that the indication type that needs to be used for sending the PRB location indication information of the second terminal is a bitmap indication; If the PRB distribution of the second terminal is distributed, the indication type that needs to be used for transmitting the PRB location indication information of the second terminal is a positive offset indication; if the device is the second terminal The allocated PRBs are densely distributed, and the indication type that needs to be used for transmitting the PRB location indication information of the second terminal is a negative offset indication.
  • a constructing module 61 configured to configure a PRB location indication unit for the second terminal according to the indication type and an absolute location of a PRB allocated to the second terminal; the PRB location indication unit of the second terminal includes the The PRB location indication information of the second terminal and the type indication information indicating the indication type used by the PRB location indication information.
  • the adding module 62 is configured to add the PRB location indication unit to the time-frequency resource allocation message.
  • the sending module 63 is configured to send the time-frequency resource allocation message to the second terminal after adding the PRB location indication unit to the time-frequency resource allocation message.
  • the head end may carry a PRB position indication unit of all terminals to which the PRB has been allocated in a time-frequency resource allocation message.
  • the absolute position of the first PRB allocated to each terminal may not be indicated for each terminal in the PRB location indication unit of each terminal.
  • the relative position of the first PRB assigned to each terminal is numbered 1. Therefore, the type determination module 60, the construction module 61, and the addition module 62 also have the following functions:
  • the type determining module 60 is further configured to: before determining, according to the degree of distribution of the PRB allocated to the second terminal, the type of the indication that the PRB location indication information of the second terminal needs to be used, the device is a PRB configuration PRB position indicating unit allocated by a terminal, The absolute position of the first PRB allocated to the first terminal is before the absolute position of the first PRB allocated to the second terminal;
  • the constructing module 61 is further configured to: after constructing the PRB location indicating unit for the PRB allocated to the second terminal according to the indication type and the absolute location of the PRB allocated to the second terminal, according to the terminal allocated
  • the order of the absolute positions of the first PRBs is renumbered, and the relative positions of the PRBs assigned to the third terminal are numbered, and the relative position of the first PRB allocated to the third terminal is numbered 1 and renumbered.
  • the offset between the relative positions of the subsequent PRBs is the same as the offset between the absolute positions before the renumbering, wherein the number of the absolute positions of the first PRB allocated for the third terminal is the second terminal After the absolute position of the assigned first PRB;
  • the adding module 62 is further configured to add the PRB location indication unit of the second terminal and the identifier information of the second terminal to a time-frequency resource allocation message, where the PRB location indication unit of the second terminal is The ordering of the time-frequency resource allocation message is performed after the PRB location indication unit of the first terminal, where the PRB location indication unit of the second terminal is in the third terminal
  • the PRB position indicates the unit before.
  • the PRBs allocated by one terminal may be uniformly distributed in a part of the area, and are densely distributed or dispersed in other parts. If the unified indication type indicates the PRB of the terminal with different distribution of each area, the PRB position is increased. Indicates the resources occupied by the information, thereby reducing the indication efficiency of the PRB location indication information. To further reduce the resources occupied by the indication information and improve the indication efficiency of the PRB location indication information, multiple PRB location indication units may be used to indicate the location of the PRB of one terminal, where one PRB location indication unit only indicates for the terminal to allocate it. The location of the partial PRB, the PRB location indication information in different PRB location indication units of one terminal may use different indication types. Therefore, the type determination module 60 and the construction module 61 also have the following functions:
  • the type determining module is further configured to determine, according to a distribution degree of the PRB allocated to the second terminal, that the PRB location indication information for sending the second terminal needs to be used:
  • the type determining module 60 is further configured to allocate, according to the number of PRBs allocated to the second terminal in the first preset number range, the second terminal in the second preset number range. Determining the number of PRBs and the number of PRBs allocated to the second terminal, determining the second terminal
  • the PRB position indicates the number of the units, and determines the indication type used by the PRB position indication information in each PRB position indication unit; the first preset number is the PRB position indication information in one PRB position indication unit.
  • the number of PRBs that can be indicated by the bitmap, and the second preset number is a PRB position indication information in a PRB position indication unit, which can be represented by a positive offset indication or a negative offset indication.
  • the constructing module 61 is further configured to construct, according to an indication type used by each PRB location indication unit of the second terminal and an absolute location of a PRB allocated to the second terminal,
  • the PRB location indication unit includes: PRB location indication information and type indication information of the indication type used by the PRB location indication information in each PRB location indication unit of the second terminal.
  • the terminal in order for the terminal to receive the time-frequency resource allocation message, it may be determined which PRB location indication unit is a PRB location indication unit indicating the location of the PRB allocated for itself, and the temporary identifiers of all terminals may be sequentially written.
  • the PRB position indication units of all terminals are written in the PRB position indication unit list field in the same order as the user temporary identification.
  • the time-frequency resource allocation message includes an identifier list field and a PRB location indication unit list field, and a PRB location indication unit count list field including the number of PRB location indication units of all terminals is added to the time-frequency resource allocation message. Therefore, the add module 62 also has the following functions:
  • the adding module 62 is further configured to sort the identification information of each terminal according to the order of the absolute positions of the first PRBs allocated for each terminal, and construct an identifier list field according to the sorted identification information; Terminals are each terminal to which a PRB is assigned;
  • the adding module 62 is further configured to sort the PRB location indication units of each terminal according to the order of the absolute positions of the first PRBs allocated for each terminal, and construct a PRB according to the sorted PRB location indication units.
  • a location indication unit list field and a PRB location indication unit count list field the PRB location indication unit list field includes each PRB location indication unit of all terminals, and the PRB location indication unit count list field includes a PRB location indication unit count unit of all terminals , the PRB position indicating unit counting unit is configured to record the number of all PRB position indicating units of one terminal;
  • the adding module 62 is further configured to add a user number field, the identifier list field, the PRB location indication unit count list field, and the PRB location indication unit list field.
  • the number of users field is used to indicate that all are allocated
  • the number of terminals of the PRB is the number of terminals of the PRB.
  • FIG. 7 is a schematic structural diagram of an apparatus for analyzing a time-frequency resource allocation message according to an embodiment of the present invention. As shown in FIG. 7, the apparatus provided in this embodiment includes: a receiving module 71 and a parsing module 72.
  • the receiving module 71 is configured to receive a time-frequency resource allocation message sent by the head end, where the time-frequency resource allocation message includes a PRB location indication unit of the device, where the PRB location indication unit of the device includes a PRB location indication information of a location of the allocated PRB and type indication information indicating an indication type used by the PRB location indication information; the indication type includes a bitmap indication, a positive offset indication, or a negative offset indication,
  • the positive offset indication is used to indicate an absolute position offset of a PRB allocated for the apparatus
  • the negative offset indication is used to indicate an absolute position offset of a PRB not allocated for the apparatus
  • the bitmap indication is used to indicate The absolute position of the PRB assigned by the device.
  • the indication type used by the PRB location indication information of the device in the time-frequency resource allocation message is a bitmap indication; if the device has been allocated a PRB Distributing, the indication type used by the PRB location indication information of the device in the time-frequency resource allocation message is a positive offset indication; if the device is allocated
  • the PRB is densely distributed, and the indication type used by the PRB location indication information of the apparatus in the time-frequency resource allocation message is a negative offset indication.
  • the parsing module 72 is configured to parse the absolute position of the PRB allocated by the head end to the device according to the PRB location indication unit of the device in the time-frequency resource allocation message received by the receiving module 71.
  • the time-frequency allocation message sent by the header includes the PRB location indication unit of each device to which the PRB is allocated and the identification information of each device.
  • the parsing module 72 is further configured to: if the time-frequency allocation message includes a PRB location indication unit of each device that allocates the PRB, and identifier information of each device, according to each device in the time-frequency resource allocation message The PRB location indication unit and the identification information of each device, and parse the absolute position of the PRB allocated by the head end to the device;
  • the parsing module 72 has the following functions: The parsing module 72 is further configured to: if the time-frequency resource allocation message PRB location indication unit is sorted according to the order of the absolute positions of the first PRBs allocated for the device ,
  • the parsing module 72 is further configured to determine, according to the identifier information of the device, a PRB location indication unit of the device in the time-frequency resource allocation message;
  • the parsing module 72 is further configured to determine, according to the type indication information and the PRB location indication information in the PRB location indication unit of the apparatus, a relative location of the PRB allocated to the apparatus, where is the first one of the apparatus The relative position of the PRB is numbered 1;
  • the parsing module 72 is further configured to determine, according to the PRB position indication unit of the first device to the i-1th device, the absolute position of the remaining PRB in all PRBs, and sort the absolute position in the absolute position of the first remaining PRB.
  • the location determines an absolute location of the first PRB allocated by the device, the remaining PRB is a PRB allocated for the i th device to the Nth device; and the PRB location indication unit of the device allocates the time frequency resource
  • the sequence number in the message is i;
  • the parsing module 72 is further configured to determine an absolute position of all PRBs allocated to the device according to an absolute position of the first PRB allocated for the device and a relative position of all PRBs allocated for the device.
  • the PRB location indication unit of the device includes one or more PRB location indication units
  • the parsing module 72 is further configured to: according to the type indication in each PRB location indication unit in the PRB location indication unit of the device The information and PRB location indication information determines the relative locations of all PRBs allocated for the device.
  • the time-frequency resource allocation message further includes an identifier list field, a PRB location indication unit count list field, and a PRB location indication unit list field.
  • the PRB location indication unit between the devices is The number of absolute positions of the first PRB allocated by each device is sorted from small to large; the PRB position indicating the unit between the devices in the unit count list field of the PRB position indicates that the subunit counting unit is assigned the first one for each device.
  • the numbers of the absolute positions of the PRBs are sorted from small to large; the identification information between the devices in the identification list field is sorted according to the position of the first PRB allocated for each device.
  • the parsing module 72 is further configured to: in the identifier list word according to the identifier information of the device The order of the segments and the number of PRB position indicating units of the device in the PRB position indicating unit count list field, each PRB position indicating unit of the device is determined in the PRB position indicating unit list field.
  • parsing module 72 The specific implementation function of the parsing module 72 can be described in the corresponding embodiment of FIG. 5, and details are not described herein again.
  • the headend device described above may specifically be a base station or other device that allocates time-frequency resources.
  • the embodiment of the present invention further provides a time-frequency resource allocation message transmission system, including: the time-frequency resource allocation message sending device 81 in the corresponding embodiment of FIG. 6, and the time in the corresponding embodiment in FIG.
  • the frequency resource allocation message parsing device 82 is shown in FIG. 8.

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Abstract

La présente invention se rapporte à un procédé, à un appareil et à un système adaptés pour transmettre et analyser un message d'attribution de ressources temps-fréquence. Le procédé de transmission selon l'invention consiste, pour chacun de seconds terminaux auxquels un PRB est attribué, à déterminer un type d'indication exigé pour transmettre des informations d'indication de position de PRB. Lesdites informations d'indication de position de PRB se rapportent au second terminal, et ladite détermination est basée sur un niveau de densité de distribution du PRB qui est attribué au second terminal. L'invention est caractérisée : en ce que les informations d'indication de position de PRB qui se rapportent au second terminal sont utilisées pour indiquer une position du PRB qui est attribué au second terminal; et en ce que le type d'indication comprend une indication de topogramme binaire, une indication de décalage positif ou une indication de décalage négatif. Le procédé de transmission selon l'invention consiste d'autre part, en fonction du type d'indication et d'une position absolue du PRB qui est attribué au second terminal, à configurer une unité d'indication de position de PRB pour le second terminal. Ladite unité d'indication de position de PRB du second terminal contient les informations d'indication de position de PRB qui se rapportent au second terminal, ainsi que des informations d'indication de type qui se rapportent au type d'indication qui est utilisé pour désigner les informations d'indication de position de PRB. Le procédé de transmission selon l'invention consiste par ailleurs à transmettre un message d'attribution de ressources temps-fréquence au second terminal une fois que l'unité d'indication de position de PRB a été insérée dans le message d'attribution de ressources temps-fréquence.
PCT/CN2012/077649 2012-06-27 2012-06-27 Procédé, appareil et système pour la transmission et l'analyse d'un message d'attribution de ressources temps-fréquence WO2014000188A1 (fr)

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CN201280000535.8A CN102870481B (zh) 2012-06-27 2012-06-27 时频资源分配消息发送方法、解析方法和装置及系统

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US11368244B2 (en) 2017-09-08 2022-06-21 Huawei Technologies Co., Ltd. Resource configuration method, terminal, and network device

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