WO2012155802A2 - Procédé, dispositif et système d'ajustement d'un format de transport - Google Patents

Procédé, dispositif et système d'ajustement d'un format de transport Download PDF

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Publication number
WO2012155802A2
WO2012155802A2 PCT/CN2012/075245 CN2012075245W WO2012155802A2 WO 2012155802 A2 WO2012155802 A2 WO 2012155802A2 CN 2012075245 W CN2012075245 W CN 2012075245W WO 2012155802 A2 WO2012155802 A2 WO 2012155802A2
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data
amount
cell
sent
user
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Chinese (zh)
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WO2012155802A3 (fr
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徐升
郭政
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028—Formatting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/52—Allocation or scheduling criteria for wireless resources based on load

Definitions

  • the present invention relates to the field of communications, and in particular, to a transport format and resource combination (TFRC) selection method, related apparatus, and system.
  • TFRC transport format and resource combination
  • WCDMA Wideband Code Division Multiple Access
  • High-speed packet access (HSPA+, High Speed Packet Access) technology was introduced in R7 and subsequent versions. This technology enables operators to use existing access network equipment to provide higher-speed, higher-quality services.
  • the transport format and resource combination selection algorithm is the key to HSPA+ technology implementation at the base station (NodeB) baseband.
  • the TFRC selection algorithm is based on the channel quality of the user that can be scheduled, The amount of buffered data (or the size of the transport block) in the queue, and the power resources and code resources available for High Speed Downlink Packet Access (HSDPA) in the current transmission time interval (TTI).
  • HSDPA High Speed Downlink Packet Access
  • ⁇ Determine the appropriate transmission format, including: modulation mode, transmission module (TB, Transport Block) size, high speed downlink shared channel (HS-SCCH, High Speed Downlink Shared Channel) and HS-DSCH shared control channel (HS- PDSCH, Shared Control Channel for HS-DSCH), the purpose of determining the appropriate transmission format is to improve the resource utilization of the cell, maximize the cell throughput rate, and satisfy the fairness and difference between users determined by the scheduling algorithm. Demand.
  • TB Transport Block
  • HS-SCCH High Speed Downlink Shared Channel
  • HS-DSCH shared control channel
  • the TFRC selection algorithm outputs the allocation and usage of the NodeB baseband downlink resources. Therefore, the introduction and application of almost any HSDPA+ technology have an important impact on the design and optimization of the algorithm.
  • dual-cell HSDPA DC-HSDPA, Dual Cell-HSDPA
  • multi-cell HSDPA The application of multi-carrier technology (MC-HSDPA, ie Multi Cell-HSDPA) enables the user to simultaneously receive at least two HSDPA data transmitted by the same-frequency and coverage-covered downlink cell (one cell is built on one carrier).
  • the network side can dynamically schedule the HSDPA transmission for the user between these carriers.
  • the application of the multi-carrier technology is such that there is a resource coupling relationship between cells of different frequency points in the same sector (ie, at least two cells share a resource). Therefore, the object of the TFRC selection algorithm is also expanded from a single cell to a cell resource group composed of a plurality of inter-frequency coverage cells. For a DC or MC user, a reasonable resource needs to be allocated to the user on the cell resource group.
  • the next cell can directly use the updated data to be sent.
  • the size is used as input to perform TFRC selection, so that reasonable resource allocation can be performed according to the actual amount of data to be sent.
  • Embodiments of the present invention provide a transmission format adjustment method, related apparatus, and system for performing multi-carrier TFRC selection in parallel.
  • the method for adjusting a transmission format includes: acquiring state information of a cell user sent by a data processing device; determining an initial transmission format of the cell user by using the state information; and acquiring the cell user sent by the data processing device The amount of data to be sent; adjusting the initial transmission format according to the amount of data to be sent, to obtain an execution transmission format;
  • the obtaining the amount of data to be sent sent by the data processing device includes: determining, by using the state information, a maximum amount of data that the cell user can send; sending a query message to the data processing device; The message is used to query the data processing device for the amount of data to be sent, where the query message carries the maximum amount of data, so that the data processing device determines the amount of data to be sent according to the maximum amount of data;
  • the determining, by the state information, the initial transmission format of the cell user includes: calculating, according to the state information, an available transmission format of the cell user; and using the available transmission format in the channel quality
  • the initial transmission format of the cell user is queried in the CQI-TB list of the quantity indication and transmission module.
  • the initial transmission format includes: a channel quality indication parameter CQI and a high-speed physical downlink shared channel HS-PDSCH code number; Adjusting the initial transmission format according to the amount of data to be sent includes: comparing a size of the to-be-transmitted data with a size of the maximum amount of data; if the amount of to-be-sent data is greater than or equal to the maximum amount of data, maintaining the code The number N is unchanged, the channel quality indicator parameter CQI is adjusted by querying the CQI-TB list; and/or, if the amount of data to be sent is less than the maximum amount of data, querying the CQI-TB list, adjusting the HS - the number of PDSCH codes or the parameter CQI;
  • the method further includes: determining, according to the remaining resources of the cell, whether to continue to perform transmission format adjustment of other users in the cell, where other users in the cell are in addition to the current cell user in the cell. External users; if not required, resource allocation is performed for each user in the cell according to the execution transmission format of each user in the cell.
  • the method for adjusting a transmission format includes: transmitting, to a scheduling device, status information of a cell user; determining, by the status information, an amount of data to be sent by the user of the cell; and transmitting, to the scheduling device, the amount of data to be sent;
  • the determining, by the status information, the amount of data to be sent by the cell user includes: receiving, by the scheduling device, an inquiry message, where the query message carries a maximum data that can be sent by the cell user.
  • Determining, by the status information, the amount of data to be sent of the cell user includes: determining, by using the status information and the maximum amount of data, an amount of data to be sent by the cell user;
  • Determining the amount of data to be sent of the cell user by using the state information and the maximum amount of data includes: determining, by using the state information, a current data amount of the cell user; comparing the current data amount with the maximum data amount a size, if the current data amount is greater than or equal to the maximum data amount, the maximum data amount is used as an amount of data to be sent; if the current data amount is less than the maximum data amount, the current data amount is As the amount of data to be sent;
  • the sending, by the scheduling apparatus, the amount of data to be sent includes: sending the status information of the cell user to the scheduling apparatus, and sending the to-be-sent data amount to the scheduling apparatus;
  • the determining, by the status information, the amount of data to be sent by the cell user includes: determining, by using the status information, an initial data volume of the cell user; determining, by using state information of each user in the cell, a current cell user. The proportion of data to be sent in all cell users; multiplying the initial data amount by the specific gravity to obtain the amount of data to be sent.
  • the scheduling device includes: a first acquiring unit, configured to acquire state information of a cell user sent by the data processing device; and a first determining unit, configured to determine the small by using the state information The initial transmission format of the user of the area; the second obtaining unit, configured to acquire the amount of data to be sent of the cell user sent by the data processing device; and an adjusting unit, configured to adjust the initial transmission format according to the amount of data to be sent .
  • the data processing apparatus includes: a status message sending unit, configured to send status information of a cell user to the scheduling apparatus; and a data determining unit, configured to determine, by using the status information, a data volume to be sent by the cell user; And a quantity sending unit, configured to send the amount of data to be sent to the scheduling apparatus.
  • the communication system includes: a scheduling device and a data processing device; the scheduling device is configured to acquire state information of a cell user sent by the data processing device; and determine, by using the state information, an initial transmission format of the cell user; Acquiring the amount of data to be sent of the cell user sent by the data processing device; adjusting the initial transmission format according to the amount of data to be sent; the data processing device, configured to send status information of the cell user to the scheduling device; Determining, by the status information, an amount of data to be sent of the cell user; and sending the amount of data to be sent to the scheduling apparatus.
  • the embodiments of the present invention have the following advantages:
  • the data processing apparatus is responsible for processing the state information of the cell user and the amount of data to be sent
  • the scheduling apparatus is responsible for performing TFRC selection.
  • the scheduling device obtains the state information of the cell user and the amount of data to be sent by the information exchange with the data processing device, determines the initial transmission format of the cell user, and adjusts the initial transmission format by the amount of the to-be-sent data, thereby obtaining the execution transmission. Format, thus completing
  • the invention separates the processing of the state information and the process of adjusting the scheduling by rational division of labor, realizing the load sharing between different functional modules, so that some steps of the multi-carrier TFRC selection can be performed synchronously, and the processing efficiency of the TFRC selection is improved. It also provides conditions for subsequent implementation of higher-specification multi-carrier evolution.
  • FIG. 1 is a schematic flow chart of a method for adjusting a transmission format in an embodiment of the present invention
  • FIG. 2 is another schematic flowchart of a method for adjusting a transmission format in an embodiment of the present invention
  • FIG. 3 is another schematic flowchart of a method for adjusting a transmission format in an embodiment of the present invention.
  • FIG. 4 is another schematic flowchart of a method for adjusting a transmission format in an embodiment of the present invention.
  • FIG. 5 is another schematic flowchart of a method for adjusting a transmission format in an embodiment of the present invention.
  • FIG. 6 is another schematic flowchart of a method for adjusting a transmission format in an embodiment of the present invention.
  • Figure ⁇ is a signaling flow chart of a transmission format adjustment method in the embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a scheduling apparatus according to an embodiment of the present invention
  • FIG. 9 is another schematic structural diagram of a scheduling apparatus according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a data processing apparatus according to an embodiment of the present invention.
  • FIG. 11 is another schematic structural diagram of a data processing apparatus according to an embodiment of the present invention.
  • Figure 12 is a block diagram showing the structure of a communication system in an embodiment of the present invention. detailed description
  • Embodiments of the present invention provide a transmission format adjustment method, related apparatus, and system for performing multi-carrier TFRC selection in parallel.
  • an embodiment of a method for adjusting a transmission format in an embodiment of the present invention includes:
  • the scheduling device acquires state information of the cell user transmitted by the data processing device.
  • the scheduling device is responsible for performing a specific TFRC selection process, and the data processing device is responsible for processing the status information of the user of the cell and the amount of data to be transmitted.
  • One scheduling device corresponds to one cell, and one data processing device can correspond to multiple cells.
  • the status information of the cell user may include: power available to the cell, HS-SCCH power of the current cell user, and HS-SCCH power occupied by the user other than the current cell user in the cell, maximum power available to a single user, common pilot The transmit power of the channel, the offset of the HS-PDSCH power relative to the pilot power, the CQI value reported by the cell user, and the like.
  • the data processing device sorts the scheduling priorities of all users in the cell according to the foregoing state information, and then sends the status information of each user in the cell and the scheduling result of the scheduling priority to the scheduling device, so that the scheduling device According to the ranking result of the scheduling priority, each user in the cell is processed in turn.
  • the scheduling device determines an initial transmission format of the current cell user by using the status information, where the initial transmission format includes: an initial CQI of the current cell user and an HS-PDSCH code number.
  • the available power of the high speed-Dedicated Physical Control Channel (HS-DPCCH) of the cell user may be calculated first, and then the CQI available to the user of the cell is calculated according to the available power of the HS-DPCCH. And the number of HS-PDSCH codes, and finally use this
  • the scheduling device acquires the amount of data to be sent of the current cell user sent by the data processing device, and the to-be-sent The amount of data is the amount of data transmission that the current cell user needs to bear in the case of multi-carrier transmission, and the amount of data to be sent is also updated and maintained by the data processing apparatus.
  • the amount of data to be sent may be adjusted according to the actual scheduling situation performed by the scheduling device when the scheduling device is performing TFRC selection, or may be estimated by the data processing device according to the state information of the local cell user, and which method is used. The details are described in the following embodiments, and are not described herein.
  • the scheduling device adjusts the initial transmission format according to the amount of data to be sent, and obtains an execution transmission format.
  • the local scheduling device After the scheduling device performs information interaction with the data processing device to obtain the amount of data to be sent of the current cell user, the local scheduling device can know how much data the local cell user should send, so that when the TFRC selection is made, the transmission format is determined more. To be accurate, unnecessary waste of resources is reduced; and the data processing apparatus and the scheduling apparatus can be freed from the limitations of the existing centralized deployment, for example, two separate physical units can be used as data processing apparatus and scheduling apparatus for deployment, respectively. It is even possible to deploy the data processing device and the scheduling device separately, making the arrangement of the transmission network more flexible.
  • the transmission format of each cell user in the cell is adjusted according to the cell resources in the cell, and then the users in the cell are performed according to the adjusted transmission format (that is, the transmission format is performed). Resource allocation.
  • the scheduling device or the data processing device may be a specific physical unit, for example, in a practical application, it may be one of a core of a multi-core central processing unit (CPU), or may be a separate digital signal processor (DSP, Digital).
  • the signal processor can also be a circuit board.
  • the specific physical shape can be determined according to the actual situation, which is not limited here.
  • the data processing device is responsible for processing the state information of the cell user and the amount of data to be sent, and the scheduling device is responsible for the process of selecting the TFRC; the scheduling device acquires the state information of the cell user and the amount of the data to be sent through information exchange with the data processing device. Determining an initial transmission format of the cell user, and adjusting the initial transmission format by the amount of data to be sent, and obtaining an execution transmission format, so that resource adjustment can be performed according to the execution transmission format, and TFRC selection is completed.
  • the invention separates the processing of the state information and the process of adjusting the scheduling by rational division of labor, realizing the load sharing between different functional modules, so that some steps of the multi-carrier TFRC selection can be performed synchronously, and the processing efficiency of the TFRC selection is improved. It also provides conditions for subsequent implementation of higher-specification multi-carrier evolution.
  • an embodiment of the method for adjusting the transmission format in the embodiment of the present invention includes:
  • step 201 in this embodiment is the same as that of step 101 in the foregoing embodiment shown in FIG. 1, and details are not described herein again.
  • the scheduling device determines an initial transmission format of the current cell user by using the status information, where the initial transmission format includes: a CQI mi of the cell user and an HS-PDSCH code number N im .
  • the first calculate the cell user HS-DPCCH available power then calculates the cell available to the user CQI A and HS-PDSCH code number N a in accordance with the available power of the HS-DPCCH, and finally using the CQI of the available and a number of HS-PDSCH codes obtained CQI im N a query and the number of HS-PDSCH codes in the CQI-TBS N mi list.
  • the scheduling device determines, by the status information, the maximum amount of data that the current cell user can transmit. Specifically, the number of CQI a and HS-PDSCH codes available to the cell user obtained by using the foregoing steps may be queried in the CQI-TBS list to obtain the maximum amount of data that the cell user can send.
  • the scheduling device sends a query message to the data processing device, where the query message is used to query the data processing device for the amount of data to be sent of the cell user, where the query message carries the maximum data amount, so that the data processing device determines the data according to the maximum data amount.
  • the amount of data to be sent is used to query the data processing device for the amount of data to be sent of the cell user, where the query message carries the maximum data amount, so that the data processing device determines the data according to the maximum data amount. The amount of data to be sent.
  • the scheduling device notifies the data processing device of the maximum amount of data that can be sent by the cell corresponding to the scheduling device by using the query message, so that the data processing device can adjust the amount of data to be sent locally saved by the data processing device according to the maximum amount of data, and finally Determine the amount of data to be sent that needs to be returned to the dispatcher.
  • a current data amount is preset in the data processing device, and the initial value of the current data amount is set according to the state information of the cell user in the initial transmission state, which is a dynamic variable, which is changed according to the change of the TFRC selection times of the cell user. .
  • the data processing device obtains the maximum amount of data, comparing the current data amount with the maximum data amount, if the current data amount is greater than or equal to the maximum data amount, the maximum data amount is used as the to-be-sent data amount. And updating the current data amount by using the difference between the current data amount and the maximum data amount; if the current data amount is less than the maximum data amount, using the current data amount as the to-be-sent data amount, and clearing the current data amount.
  • the scheduling device acquires the amount of data to be sent returned by the data processing device.
  • the amount of data to be sent is adjusted by the data processing device to perform real-time maintenance and adjustment. Therefore, the amount of data to be sent is more accurate, so that the scheduling device can accurately perform the initial transmission format. Adjustment.
  • the scheduling device adjusts the initial transmission format according to the amount of data to be transmitted and the maximum amount of data to obtain an execution transmission format.
  • the maximum amount of scheduled data is compared with the amount of pending data, if the outgoing data is greater than or equal to the maximum amount of data, then a sufficient local cache data, it is held to the initial number of codes N im transport format
  • N im transport format
  • the CQI-TB list is queried, and the code number N im or the parameter CQI mi is adjusted to a small direction, so that the adjusted code is obtained.
  • the number N b and the parameter CQI b correspond to the maximum amount of data in the CQI-TB list, and the code number N b- i and the parameter CQIb, or the code number N b and the parameter CQIb-i are in the CQI-TB list.
  • the maximum value of the corresponding data amount is less than the maximum data amount.
  • the scheduling device and the data processing device adjust the amount of data to be sent through real-time information interaction, thereby improving the accuracy of the amount of data to be sent, so that the TFRC selection process of different cell users is decoupled without loss, that is,
  • the allocation scheme of the embodiment of the present invention is non-destructive in the utilization of resources.
  • the transmission format adjustment in the embodiment of the present invention includes:
  • the scheduling device simultaneously acquires state information of the cell user and the amount of data to be sent sent by the data processing device.
  • the data processing device while processing the state information of the cell user corresponding to the scheduling device, also estimates the amount of data to be sent of the cell user, and then sends the state information and the amount of the data to be sent to the scheduling device.
  • the process of estimating the amount of data to be sent may specifically be:
  • the data processing device presets an initial data amount locally, and the current data amount is used according to the cell.
  • the status information of the initial state of the user is set.
  • the data processing device calculates the current cell user ⁇ by using the preset formula 3, and then uses the weight value to calculate the proportion Pl of the data to be sent by the current cell user in all cell users by using the preset formula 4, and finally, the initial The amount of data is multiplied by the specific gravity to obtain the amount of data to be sent of the current cell user.
  • Equation 3 W CQV ( 3 ⁇ 4*X );
  • C (3 ⁇ 4 is the channel quality indicator of the user in the cell i, is the power utilization rate of the cell i, and X is the location where the current transmission time interval of the user is scheduled in the scheduling of the cell i, and the parameter i is the code of any cell.
  • the cell i refers to any cell, and refers to the weight of the data transmission amount that the cell i should bear, and C (3 ⁇ 4 and other parameters have similar meanings.
  • the scheduling device determines, by using the status information, an initial transmission format of the current cell user, where the initial transmission format includes: a CQI MI of the cell user and an HS-PDSCH code number N IM .
  • the available power of the HS-DPCCH of the cell user P a can be calculated by using the preset formula 1;
  • Equation 1 Pcell — Pp-used—Ppi-used—Pll-cur, PMAX—Pil-cur );
  • P cell is a cell available power
  • PH- use d is the power already occupied by the HS-SCCH channel of the user other than the current cell user in the cell
  • PMAX is the maximum power available to a single user.
  • the foregoing P E is the transmit power of the common pilot channel
  • the MPO is the offset of the HS-PDSCH power relative to the pilot power
  • the CQI RE is the CQI value reported by the cell user.
  • the CQIUE is an estimate of the CQI capability of the cell user. parameter.
  • the CQI A and the available HS-PDSCH code number N A are queried in the CQI-TBS list to obtain the CQI im and the HS-PDSCH code number N mi .
  • step 303 in the embodiment is the same as that of the step 203 in the embodiment shown in FIG. 2, and details are not described herein again.
  • the scheduling device adjusts the initial transmission format according to the amount of data to be sent and the maximum amount of data, to obtain an execution transmission format.
  • the maximum amount of scheduled data is compared with the amount of pending data, if the outgoing data is greater than or equal to the maximum amount of data, then a sufficient local cache data, it is held to the initial number of codes N im transport format
  • N im transport format
  • the CQI-TB list is queried, and the code number N im or the parameter CQI mi is adjusted to a small direction, so that the adjusted code is obtained.
  • the number N b and the parameter CQI b correspond to the maximum amount of data in the CQI-TB list, and the code number N b-] and the parameter CQIb, or the code number N b and the parameter CQI b- i are in the CQI-TB list.
  • the maximum value of the corresponding data amount is less than the maximum data amount.
  • the scheduling device determines, according to the remaining resources of the cell, whether to continue to perform transmission format adjustment of other users in the cell, and other users in the cell are users other than the current cell user in the cell, if necessary, Then, the data processing device continues to interact with the data processing device to complete the transmission format adjustment of other users in the cell; if not, the resource allocation is performed for each user in the cell according to the execution transmission format of each user in the cell, and the content of the specific resource allocation may be allocated.
  • the data processing device may perform an estimation of the amount of data to be sent of the current cell user before the scheduling device performs TFRC selection, and Receiving the state information sent by the data processing device, receiving the estimated value of the amount of data to be sent, thereby reducing the information interaction process between the data processing device and the scheduling device, and reducing the data processing device and the scheduling device
  • the delay caused by the information improves the efficiency of the TFRC selection.
  • the transmission format adjustment method in the embodiment of the present invention is described from the perspective of the scheduling device.
  • the following describes the transmission format adjustment method in the embodiment of the present invention from the data processing device side.
  • Another embodiment of the transport format adjustment method includes:
  • the data processing device transmits the state information of the cell user to the scheduling device, so that the scheduling device performs TFRC selection based on the state information.
  • the data processing device is responsible for processing the status information of the cell user and the amount of data to be sent, one data location
  • the device can process status information of multiple cells and the amount of data to be transmitted.
  • the status information may include: power available to the cell, HS-SCCH power of the current cell user, and HS-SCCH power occupied by the user other than the current cell user in the cell, maximum power available to a single user, common pilot channel Transmit power, offset of HS-PDSCH power relative to pilot power, CQI value reported by the cell user, and so on.
  • the data processing device sorts the scheduling priorities of all users in the cell by using preset rules according to the foregoing state information, and then sends the status information of each user in the cell and the scheduling result of the scheduling priority to the scheduling device.
  • the initial value of the foregoing status information may be input by an administrator or may be obtained from an external communication device; the data processing device updates and maintains the above state information according to data transmission status of each user in the cell.
  • the data processing device determines the amount of data to be sent of the current cell user by using the foregoing status information.
  • the amount of data to be sent may be adjusted by real-time information interaction between the scheduling device and the data processing device, or may be estimated according to local state information of the data processing device; in actual applications, other methods may be used to perform data to be sent.
  • the calculation of the quantity is not limited herein.
  • the data processing device sends the amount of data to be sent to the scheduling device, so that the scheduling device adjusts the initial transmission format of the current cell user according to the amount of data to be sent.
  • the steps 401 and 402 are not limited to the execution order, and the order of the steps may be 401.
  • the execution order of the specific steps may be determined according to the actual situation, which is not limited herein.
  • the data processing apparatus in the embodiment of the present invention assists in completing the data processing amount in the TFRC selection process of the TFRC selection and sharing of the cell user by performing information interaction with the scheduling apparatus, thereby improving the processing efficiency of the TFRC selection; and the data processing apparatus and scheduling
  • the device can be deployed separately using two separate physical units, and even the two devices can be deployed separately, making the arrangement of the transport network more flexible.
  • One embodiment of a medium transmission format adjustment method includes:
  • the content of the step 501 in the embodiment is the same as the content of the step 401 in the embodiment shown in FIG. 4, and details are not described herein again.
  • 502. Receive a query message.
  • the data processing device receives the query message sent by the scheduling device, and extracts the maximum amount of data that the cell user carried in the query message can send.
  • the query message is used to query the data processing device for the amount of data to be sent of the current cell user corresponding to the scheduling device.
  • the data processing device determines the amount of data to be transmitted of the user of the cell by using the status information of the user of the cell and the maximum amount of data extracted as described above.
  • the data processing device presets a current data amount locally, and the initial value of the current data amount is set according to the state information of the cell user in the initial transmission state, which is a dynamic variable, and the number of TFRC selection times is changed according to the cell user. change.
  • the data processing device obtains the maximum amount of data, comparing the current data amount with the maximum data amount, if the current data amount is greater than or equal to the maximum data amount, the maximum data amount is used as the to-be-sent data amount. And updating the current data amount by using the difference between the current data amount and the maximum data amount; if the current data amount is less than the maximum data amount, using the current data amount as the to-be-sent data amount, and clearing the current data amount.
  • the data processing apparatus returns the amount of data to be transmitted to the scheduling apparatus, so that the scheduling apparatus adjusts the initial transmission format of the cell user according to the amount of data to be transmitted.
  • the amount of data to be sent is adjusted and maintained in real time by the scheduling device and the data processing device. Therefore, the amount of data to be sent is more accurate, so that the scheduling device adjusts the initial transmission format more. accurate.
  • the scheduling device and the data processing device adjust the amount of data to be sent through real-time information interaction, thereby improving the accuracy of the amount of data to be sent, so that the TFRC selection process of different cell users is decoupled without loss, that is,
  • the allocation scheme of the embodiment of the present invention is non-destructive in the utilization of resources.
  • an embodiment of the transmission format adjustment method in the embodiment of the present invention includes:
  • the data processing device estimates the amount of data to be sent of the current cell user through the state information of each user in the locally stored cell.
  • the process of estimating the amount of data to be sent may specifically be:
  • the data processing device presets an initial amount of data locally, the current data amount being set according to state information of the initial state of the cell user.
  • the data processing device calculates the weight W x of the data transmission amount that the current cell user should bear by using the preset formula 3, and then uses the weight value to calculate the data to be sent of the current cell user in all the cell users by using the preset formula 4
  • the proportion of the initial data is multiplied by the specific gravity P1 to obtain the amount of data to be sent of the current cell user.
  • Equation 3 W CQV ( R X );
  • the above C (3 ⁇ 4 is the channel quality indicator of the user in the cell i, and is the power utilization rate of the cell i, and X is the location where the current transmission time interval of the user is scheduled in the scheduling of the cell 1.
  • the data processing device carries the status information of the current cell user and the amount of data to be sent simultaneously in an interaction message, and sends the interaction message to the scheduling device corresponding to the cell user, so that the scheduling device determines the initial transmission of the cell user according to the status information. Format, and adjust the initial transmission format by the amount of data to be transmitted.
  • the data processing device may perform an estimation of the amount of data to be sent of the current cell user before the scheduling device performs TFRC selection, and Receiving the state information sent by the data processing device, receiving the estimated value of the amount of data to be sent, thereby reducing the information interaction process between the data processing device and the scheduling device, and reducing the data processing device and the scheduling device
  • the delay caused by the information improves the efficiency of the TFRC selection.
  • the data processing apparatus performs scheduling scheduling on the cell user.
  • the data processing apparatus sorts the users of each cell by the size of the cell power utilization, and the data processing apparatus schedules the ranking results.
  • the data processing device selects a cell in which no resource is allocated and the scheduling priority is the highest in the scheduling ordering result for TFRC selection.
  • the data processing device sends status information of the cell user.
  • the data processing device aggregates the above-mentioned scheduling, and the state information of each cell user is transmitted to the scheduling device, so that the scheduling device performs TFRC selection based on the state information.
  • the status information includes: the power P cell available to the cell , the HS-PDSCH channel power of each user in the small area ⁇ - ⁇ the HS-SCCH power of each user in the small area 1 &1 ⁇ ⁇ ⁇ , the maximum power available to a single user ⁇ , public
  • the scheduling device reserves the number of HS-SCCH codes.
  • the scheduling device queries the available HS-SCCH code set of the current transmission time interval. If the number of remaining HS-SCCH codes is greater than 2, the number of HS-SCCH codes is reserved, and the reserved code number is allocated to the bearer.
  • the scheduling apparatus performs pre-allocation of the HS-SCCH channel code.
  • the scheduling device performs pre-allocation of the HS-SCCH channel code to the current cell user.
  • HS-SCCH code set of the cell pre-allocate an HS-SCCH code number to the cell user, and trigger step 705; if the HS-SCCH code set of the cell If there is no unused HS-SCCH channel code, the TFRC selection process is ended.
  • the scheduling apparatus determines an initial transmission format of the cell user.
  • the scheduling device determines, by using the status information, an initial transmission format of the cell user, where the initial transmission format includes: a CQI mi of the cell user and an HS-PDSCH code number N mi
  • the available power of the HS-DPCCH of the cell user P a can be calculated by using the preset formula 1;
  • Equation 1 Pcell — Pp-used—PH-used— ⁇ -cur , P]MAX—Pll-cur );
  • the P cell is the power available to the cell
  • the P used is the power occupied by the HS-PDSCH channel of the user other than the current cell user
  • the P H ur is the HS-SCCH power of the current cell user
  • P H - use d is the power already occupied by the HS-SCCH channel of the user other than the current cell user in the cell
  • PMAX is the maximum power available to a single user.
  • the foregoing P e is the transmit power of the common pilot channel
  • the MPO is the offset of the HS-PDSCH power relative to the pilot power
  • the CQI RE is the CQI value reported by the cell user.
  • the CQIUE is an estimate of the CQI capability of the cell user. parameter.
  • the scheduling device sends a query message to the data processing device; the query message is used to query the data processing device for the data volume TB a of the cell user, where the query message carries the maximum data volume TB ml , so that the data processing device is configured according to the maximum determining the amount of data TB mi outgoing data amount TB a.
  • the amount of data sent is TB a .
  • the data processing device determines a quantity of data to be sent of the cell user.
  • the data processing device determines the amount of data to be transmitted TB a of the cell user by using the state information of the cell user and the extracted maximum data volume TB.
  • the data processing device locally presets a current data volume TB t , and the initial value of the current data volume TB t is set according to the state information of the cell user in the initial transmission state, which is a dynamic variable, and the TFRC selection is performed with the cell user. Change in the number of times.
  • the data processing device acquires the maximum data amount TB mi , the current data amount TB t and the maximum data amount TB mi are compared:
  • the maximum data amount TB mi is taken as the to-be-sent data amount TB a , and the difference between the current data amount TB t and the maximum data amount TB im is updated.
  • Current data volume
  • the current data amount TB t is less than the maximum data amount TB mi , the current data amount TB t is taken as the to-be-sent data amount TB a , and the current data amount TB t is cleared.
  • the data processing device updates the state variables in a "first come, first served" manner, and queues the cell users.
  • the TB t query and the service modification are mutually exclusive protection.
  • the data processing device returns the sent data amount.
  • the data processing device returns the amount of data to be transmitted TB a to the scheduling device, so that the scheduling device adjusts according to the amount of data to be transmitted TB ⁇ j and the initial transmission format of the area user.
  • the scheduling device adjusts an initial transmission format.
  • the scheduling apparatus adjusts the initial transmission format (CQI im and HS-PDSCH code number N) according to the amount of data to be transmitted TB a and the maximum amount of data TB im .
  • the scheduling device compares the maximum data amount TB lm with the to-be-sent data amount TB a : if the to-be-sent data amount is greater than or equal to the maximum data amount, it indicates that the locally cached data is sufficient, so the original transmission format is maintained.
  • the code number N mi is unchanged, and the parameter CQI im is adjusted by querying the CQI-TB list, so that the minimum CQI value in the CQI-TB list is selected on the premise that the maximum data amount is guaranteed to be unchanged;
  • the CQI-TB table is queried, and the code number N im or the parameter CQI im is adjusted to a small direction, so that the adjusted
  • the code number N b and the parameter CQI b correspond to the maximum data amount in the CQI-TB list, and the code number N b-1 and the parameter CQIb, or the code number N b and the parameter CQI b- i are in the CQI-TB
  • the maximum value of the corresponding data amount in the list is less than the maximum data amount.
  • the scheduling device allocates HS-PDSCH power.
  • the scheduling apparatus allocates the HS-PDSCH power P p for the current cell user queue or the HARQ process according to the initial transmission format (the code number N b and the parameter CQI b ) obtained above, and updates the power resource and the HS-PDSCH code resource used by the cell, At the same time, it is judged whether to perform the TFRC selection of the next queue or process according to whether the remaining resources of the cell are sufficient.
  • the scheduling device allocates resources.
  • the scheduling apparatus After the transmission format of all the cell users is determined (that is, the execution transmission format corresponding to each cell is obtained), the scheduling apparatus allocates the number of HS-SCCH channel codes for each user in the cell, and performs HS-PDSCH code number initial position allocation and process number allocation. And the distribution of new logos, etc.
  • One embodiment of the scheduling apparatus of the present invention for performing the above-described transmission format adjustment method is described below.
  • One embodiment of the scheduling apparatus in the embodiment of the present invention includes:
  • the first obtaining unit 801 is configured to obtain the state information of the cell user that is sent by the data processing device.
  • the first determining unit 802 is configured to determine an initial transmission format of the cell user by using the state information. The amount of data to be sent of the user of the cell sent by the data processing device;
  • the adjusting unit 804 is configured to adjust the initial transmission format according to the amount of data to be sent.
  • the first determining unit 802 in the embodiment of the present invention may include:
  • the calculation module 8021 is configured to calculate an available transmission format of the cell user according to the status information
  • the query module 8022 is configured to query, in the CQI-TB list, the initial transmission format of the cell user by using the available transmission format.
  • the adjusting unit 804 in the embodiment of the present invention may include:
  • the comparing module 8041 is configured to compare the amount of the to-be-transmitted data with the maximum amount of data, and if the amount of the to-be-sent data is greater than or equal to the maximum amount of data, triggering the first adjusting module; if the amount of data to be sent is less than the maximum data A quantity, then triggering a second adjustment module;
  • the first adjustment module 8042 is configured to keep the HS-PDSCH code number N unchanged, and adjust the channel quality indicator parameter CQI by querying the CQI-TB list;
  • the second adjustment module 8043 is configured to query the CQI-TB list, and adjust the code number N or the parameter CQI to a small direction.
  • the scheduling device in the embodiment of the present invention may further include:
  • a second determining unit 805, configured to determine, by using the status information, a maximum amount of data that the cell user can send;
  • the sending unit 806 is configured to send a query message to the data processing device, where the query message is used to query the data processing device for the amount of data to be sent, where the query message carries the maximum amount of data, so that the data processing device is configured according to the maximum data.
  • the amount determines the amount of data to be sent.
  • the first acquisition unit 801 of the scheduling device acquires the status information of the cell user transmitted by the data processing device.
  • the scheduling device is responsible for performing a specific TFRC selection process
  • the data processing device is responsible for processing the state information of the cell user and the amount of data to be transmitted, wherein one scheduling device corresponds to one cell and one data processing device can correspond to multiple cells.
  • the status information may include: power available to the cell, HS-SCCH power of the current cell user, and HS-SCCH power occupied by the user other than the current cell user in the cell, maximum power available to a single user, common pilot channel Transmit power, offset of HS-PDSCH power relative to pilot power, CQI value reported by the cell user, and so on.
  • the first determining unit 802 determines, by using the status information, an initial transmission format of the cell user, where the initial transmission format includes: a CQI im of the cell user and
  • the available power of the HS-DPCCH of the cell user may be calculated first, and then the calculating module 8021 calculates the user of the cell according to the available power of the HS-DPCCH.
  • the query module 8022 using CQI a number of HS-PDSCH codes, and the available ⁇ CQI-TBS query in the list, and obtain CQI mi
  • the second determining unit 805 determines, by the status information, the maximum amount of data that the cell user can transmit. Specifically, the parameters obtained by the calculating module 8021 may be extracted: the CQI a and the HS-PDSCH code number N available to the cell user, and the CQI a and the code number N a are used to query in the CQI-TBS list to obtain the user of the cell. The maximum amount of data that can be sent. Then, the sending unit 806 constructs and sends a query message to the data processing device, where the query message is used to query the data processing device for the amount of data to be sent of the cell user; and when the query message is constructed, the maximum data is added to the query message.
  • a current data amount is preset in the data processing device, and the initial value of the current data amount is a state of the cell user according to the initial transmission state.
  • the information set is a dynamic variable that changes as the cell user changes the number of TFRC selections.
  • the data processing device obtains the maximum amount of data, comparing the current data amount with the maximum data amount, if the current data amount is greater than or equal to the maximum data amount, the maximum data amount is used as the to-be-sent data amount. And updating the current data amount by using the difference between the current data amount and the maximum data amount; if the current data amount is less than the maximum data amount, using the current data amount as the to-be-sent data amount, and clearing the current data amount.
  • the second obtaining unit 803 acquires the amount of data to be sent returned by the data processing device.
  • the adjusting unit 804 adjusts the initial transmission format according to the amount of data to be sent and the maximum amount of data.
  • the comparing module 8041 of the adjusting unit 804 compares the maximum data amount with the amount of data to be sent. If the amount of data to be sent is greater than or equal to the maximum amount of data, it indicates that the locally buffered data is sufficient, triggering the first adjustment.
  • the module 8042 keeps the HS-PDSCH code number N unchanged, and adjusts the channel quality indicator parameter CQI by querying the CQI-TB list, so that the minimum CQI value in the CQI-TB list is selected on the premise of ensuring that the maximum data amount does not change; If the amount of data to be sent is less than the maximum amount of data, it indicates that the data of the local cache is insufficient, and the second adjustment module 8043 is triggered to query the CQI-TB list, and the code number N or the parameter CQI is adjusted to a small direction, so that the adjustment is performed.
  • the code number N b and the parameter CQI b correspond to the maximum data amount in the CQI-TB list, and the code number N w and the parameter CQI b , or the code number N b and the parameter CQI W are in the CQI-TB list.
  • the maximum value of the corresponding data amount is less than the maximum data amount.
  • the first obtaining unit 801 and the second obtaining unit 803 in the embodiment of the present invention may simultaneously perform operations, specifically, The interaction process of each unit in the scheduling apparatus of the embodiment of the invention is as follows:
  • the first acquiring unit 801 and the second obtaining unit 803 of the scheduling device respectively acquire the state information of the cell user and the amount of data to be sent sent by the data processing device, which may be specifically: the scheduling device receives the data processing device to send
  • the first acquisition unit 801 extracts the status information of the cell user from the interaction message
  • the second acquisition unit 803 extracts the amount of data to be sent of the cell user from the interaction message.
  • the first determining unit 802 determines an initial transmission format of the cell user by using the status information, where the initial transmission format includes the CQI im and the HS-PDSCH code number N im of the cell user.
  • the second determining unit 805 determines the maximum amount of data that the cell user can transmit by the status information.
  • the adjusting unit 804 adjusts the initial transmission frame according to the amount of data to be sent and the maximum amount of data, and the comparison module 8041 of the adjusting unit 804 compares the maximum data amount with the data to be sent. If the amount of data to be sent is greater than or equal to the maximum amount of data, it indicates that the locally buffered data is sufficient, and the first adjustment module 8042 is triggered to keep the number of HS-PDSCH codes N unchanged, and the CQI-TB list is queried.
  • the triggering second adjustment module 8043 queries the CQI-TB list, and adjusts the code number N or the parameter CQI to a small direction, so that the adjusted code number N b and the parameter CQI b correspond to the data amount in the CQI-TB list.
  • One embodiment of the data processing apparatus of the present invention for performing the above-described transmission format adjustment method is described below.
  • One embodiment of the data processing apparatus in the embodiment of the present invention includes:
  • a status message sending unit 901 configured to send status information of the cell user to the scheduling device, where the data determining unit 902 is configured to determine, by using the status information, a data volume to be sent by the cell user, and a data quantity sending unit 903, configured to send to the scheduling device Send the amount of data to be sent.
  • the data processing device in the embodiment of the present invention may further include:
  • the query message receiving unit 904 is configured to receive a query message sent by the scheduling device, where the query message carries a maximum amount of data that the cell user can send;
  • the data determining unit 902 is further configured to: determine the cell user by using the state information and the maximum amount of data The amount of data to be sent; and the data determining unit 902 can include:
  • a first determining module 9021 configured to determine, by using the status information, a current data amount of the cell user; the data amount comparison module 9022 is configured to compare the current data amount with the maximum data amount, if the current data amount is greater than or equal to The maximum amount of data is used as the amount of data to be sent; if the current amount of data is less than the maximum amount of data, the current amount of data is taken as the amount of data to be transmitted.
  • the interaction process of each unit in the data processing apparatus is as follows:
  • the status message sending unit 901 of the data processing apparatus sends the status information of the cell user to the scheduling apparatus, so that the scheduling apparatus according to the Status information is TFRC selected.
  • the status information may include: power available to the cell, HS-SCCH power of the current cell user, and HS-SCCH power occupied by the user other than the current cell user in the cell, maximum power available to a single user, common pilot channel Transmit power, offset of HS-PDSCH power relative to pilot power, CQI value reported by the cell user, and so on.
  • the data processing device sorts the scheduling priorities of all users in the cell by using preset rules according to the status information, and then sends the status information of each user in the cell and the scheduling result of the scheduling priority to the scheduling device.
  • the query message receiving unit 904 receives the query message sent by the scheduling device, and extracts the maximum amount of data that the cell user carried in the query message can send.
  • the query message is used to query the data processing device for the amount of data to be sent of the cell user corresponding to the scheduling device.
  • the data determining unit 902 determines the amount of data to be transmitted of the cell user by the state information of the cell user and the extracted maximum data amount. Specifically, the first determining module 9021 determines, by using the status information, a current data volume of the cell user, where an initial value of the current data volume is set according to status information of a cell user in an initial transmission state, which is a dynamic variable, and the cell The user changes the number of TFRC selections. Then, the data amount comparison module 9022 compares the current data amount with the maximum data amount. If the current data amount is greater than or equal to the maximum data amount, the maximum data amount is used as the to-be-sent data amount, and the current data is used. The difference between the quantity and the maximum amount of data updates the current amount of data; if the current amount of data is less than the maximum amount of data, the current amount of data is taken as the amount of data to be transmitted, and the current amount of data is cleared.
  • the data volume sending unit 903 After determining the amount of data to be sent by the user of the cell, the data volume sending unit 903 returns the amount of data to be sent, so that the scheduling device adjusts the initial transmission format of the cell user according to the amount of data to be sent.
  • the state in the embodiment of the present invention may further include:
  • the second determining module 9023 is configured to determine, by using the status information, an initial data volume of the cell user.
  • the third determining module 9024 is configured to determine, by using status information of each user in the cell, that the current cell user is to send data in all cell users. Proportion of
  • the multiplying module 9025 is configured to multiply the initial data amount by the specific gravity to obtain an amount of data to be sent.
  • the interaction process of each unit in the data processing apparatus according to the embodiment of the present invention is as follows:
  • the data determining unit 902 of the data processing apparatus uses the status information of each user in the locally stored cell to the current cell user.
  • the amount of data to be sent is estimated.
  • the second determining module 9023 of the data determining unit 902 determines the initial data amount of the cell user by using the status information, and the current data amount is set according to the status information of the initial state of the cell user.
  • the third determining module 9024 calculates the weight of the data transmission amount that the current cell user should bear by using the preset formula 3, and then uses the weight value to calculate the data to be sent by the current cell user in all the cell users by using the preset formula 4.
  • the specific gravity P1 uses the weight value to calculate the data to be sent by the current cell user in all the cell users by using the preset formula 4.
  • the specific gravity P1 uses the weight value to calculate the data to be sent by the current cell user in all the cell users by using the preset formula 4.
  • the specific gravity P1 The specific gravity P1 ;
  • the multiplication module 9025 multiplies the initial data amount by the specific gravity P1 to obtain the amount of data to be transmitted of the current cell user.
  • the status message transmitting unit 901 and the data amount transmitting unit 903 simultaneously transmit a status message and the amount of data to be transmitted to the scheduling device.
  • the data processing device carries the status information of the cell user and the amount of data to be sent simultaneously in an interaction message, and sends the interaction message to the scheduling device corresponding to the cell user, so that the scheduling device determines the user of the cell according to the status information.
  • the initial transmission format, and the initial transmission format is adjusted by the amount of data to be transmitted.
  • an embodiment of the communication system of the present invention for performing the above-mentioned transmission format adjustment method.
  • an embodiment of the communication system in the embodiment of the present invention includes: a scheduling device and a data processing device;
  • the scheduling device and the data processing device may be physical units. In actual applications, it may be one of the CPUs of the multi-core CPU, or an independent DSP, or a circuit board. The specific physical form may be based on actual conditions. Depending on the situation, it is not limited here.
  • the scheduling device 1201 is configured to acquire state information of a cell user sent by the data processing device 1202, determine an initial transmission format of the cell user by using the state information, and acquire an amount of data to be sent of the cell user sent by the data processing device 1202. The amount of data to be sent adjusts the initial transmission format;
  • the data processing device 1202 is configured to send the status information of the cell user to the scheduling device 1201, determine the amount of data to be sent of the cell user by using the status information, and send the to-be-sent data to the scheduling device 1201. the amount.
  • the above communication system is applied to the application scenario described in FIG. 7 above.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • 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 coupling or direct connection or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in the form of an electrical, mechanical or other.
  • the components displayed by the unit may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives 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 software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention or the part contributing to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • 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 codes. .

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Abstract

L'invention concerne un procédé d'ajustement d'un format de transport, un dispositif associé et un système destiné à effectuer des sélections TFRC sur multiporteuses parallèles. Le procédé des modes de réalisation de la présente invention consiste à : acquérir des informations d'état d'un utilisateur d'une cellule, lesquelles informations sont transmises par un dispositif de traitement de données ; déterminer le format de transport initial de l'utilisateur de la cellule conformément aux informations d'état ; acquérir le volume des données devant être transmises par l'utilisateur de la cellule, lesquelles données sont transmises par le dispositif de traitement de données ; ajuster le format de transport initial conformément au volume des données à transmettre. L'invention concerne également un dispositif et un système destinés à mettre en oeuvre le procédé.
PCT/CN2012/075245 2011-05-18 2012-05-09 Procédé, dispositif et système d'ajustement d'un format de transport Ceased WO2012155802A2 (fr)

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