WO2014100979A1 - 一种数据传输的方法和基站 - Google Patents

一种数据传输的方法和基站 Download PDF

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Publication number
WO2014100979A1
WO2014100979A1 PCT/CN2012/087440 CN2012087440W WO2014100979A1 WO 2014100979 A1 WO2014100979 A1 WO 2014100979A1 CN 2012087440 W CN2012087440 W CN 2012087440W WO 2014100979 A1 WO2014100979 A1 WO 2014100979A1
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WO
WIPO (PCT)
Prior art keywords
user terminal
matched
service rate
service
pairing
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PCT/CN2012/087440
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English (en)
French (fr)
Inventor
李亮亮
Original Assignee
华为技术有限公司
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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/CN2012/087440 priority Critical patent/WO2014100979A1/zh
Priority to CN201280022544.7A priority patent/CN103620975B/zh
Publication of WO2014100979A1 publication Critical patent/WO2014100979A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling

Definitions

  • the present invention relates to the field of communications, and in particular, to a data transmission method and a base station. Background technique
  • Mul ti Input Mul ti Output (MIMO) technology is a technology for increasing data throughput without increasing the transmit power of the transmitting end in wireless communication.
  • the mechanism is to set multiple at the transmitting end.
  • the antennas transmit data independently of each other, and at the same time, multiple antennas are also provided at the receiving end to receive data transmitted by the transmitting end.
  • an antenna can be installed in a user terminal of a multi-user MIMO (Mul t i-User MIMO, MU-MIMO) system, and multiple antennas are installed in the base station, because there are multiple user terminals under the base station,
  • the base station can match a plurality of user terminals to form a multi-antenna terminal group, and then transmit data.
  • the composition of the multi-antenna terminal group is an important step in the MU-MIMO technology, and a plurality of user terminals are first selected as the first terminal group. Then, N-1 user terminals are selected from the remaining user terminals; N is the maximum number of user terminals allowed to be matched by the MU-MIMO system; the user terminal selected from the first terminal group and the selected N-1 user terminals
  • the matching is completed according to the preset pairing rules to form a multi-antenna terminal group. According to the above method, other user terminals in the first terminal group can be paired. Thereby continuing to form a multi-antenna terminal group.
  • a user terminal has multiple services, and each service has different requirements for the amount of data transmitted per unit time.
  • the call service needs to transmit data in real time, and a large amount of data is required to be guaranteed in a unit time.
  • Service quality The mail service only needs to be completed within the specified time, and the requirement for the amount of data transmitted per unit time is small.
  • the user terminal is paired to form a multi-antenna terminal group without dividing the service requirements of the user terminal, and the amount of data transmitted by the user terminal per unit time and the data throughput of the system are reduced. Summary of the invention
  • Embodiments of the present invention provide a data transmission method and a base station, which solve the problem in the prior art.
  • the user terminal is paired in the case of the service requirements of the user terminal, and the technical problem of the transmission amount of the user terminal per unit time and the data throughput of the system is reduced.
  • a method of data transmission including:
  • the pre-paired service rate includes a pre-paired service rate of the first to-be-matched user terminal, and a first to-be-matched user terminal and the N-1 second to-be-matched user terminals Pairing the total service rate after forming the multi-antenna terminal group;
  • the loss of the pre-paired service rate of the first to-be-matched user terminal is within the range of the loss tolerance, if the total service rate is higher than the first to-be-matched user terminal before pre-pairing And determining, by the service rate, the first to-be-matched user terminal and the N-1 second to-be-matched user terminals to form a multi-antenna terminal group;
  • the preset loss tolerance amount is set by:
  • a fixed loss tolerance is preset in advance for each of the user terminals that open the guaranteed bit rate GBR service.
  • the preset loss tolerance is set by:
  • the user terminal that opens the GBR service whose actual service rate is less than the target service rate is reduced according to the first predetermined conversion value.
  • the user who opens the GBR service whose actual service rate is not less than the target service rate is increased according to the second predetermined conversion value.
  • the loss tolerance of the terminal is not less than the target service rate
  • the first predetermined transform value and the second predetermined transform value are the same value;
  • the first predetermined transformed value and the second predetermined transformed value are different values.
  • the service rate before the pre-pairing of the first to-be-matched user terminal is determined, and the pre-paired service of the first to-be-matched user terminal is determined. Whether the loss of the rate is within the loss tolerance of the first to-be-matched user terminal, further comprising:
  • the loss of the service rate before the pre-pairing of the first to-be-matched user terminal is not within the loss tolerance of the first to-be-matched user terminal.
  • the first to-be-matched user terminal does not participate in the MU-MIM0 pairing process.
  • the first possible implementation of the first aspect, the second possible implementation of the first aspect, the third possible implementation of the first aspect, the fourth possible aspect of the first aspect is a set of scheduled user terminals, the second to-be-matched user terminal is an unscheduled user terminal, and the second terminal group is a set of the unscheduled user terminals.
  • a base station including:
  • a selecting unit configured to select a first to-be-matched user terminal in the first terminal group, and select N-1 second to-be-matched user terminals in the second terminal group; wherein the first to-be-matched user terminal is the A user terminal that guarantees a bit rate GBR service is enabled in the first terminal group, where N is a total number of user terminals that the system allows to be paired, and is greater than or equal to 2;
  • a pre-paired service rate obtaining unit configured to obtain a pre-paired service rate;
  • the pre-paired service rate includes a service rate after the pre-pairing of the first to-be-matched user terminal, and a first to-be-matched The total service rate of the multi-antenna terminal group after the user terminal is paired with the N1 second to-be-matched user terminals;
  • a first determining unit configured to determine whether a loss of the pre-paired service rate of the first to-be-matched user terminal relative to a pre-pairing service rate is a preset loss tolerance of the first to-be-matched user terminal Within the range of quantities;
  • a second determining unit configured to determine, when the first determining unit determines that the loss of the pre-paired service rate of the first to-be-matched user terminal is within a range of the loss tolerance amount, Whether the total service rate of the to-be-matched user terminal and the N-1 second to-be-matched user terminals are pre-paired to form the multi-antenna terminal group is higher than the pre-pairing service rate of the first to-be-matched user terminal;
  • a pairing unit configured to: when the second determining unit determines that the total service rate is higher than a pre-pairing service rate of the first to-be-matched user terminal, the first to-be-matched user terminal and the N- 1 second pair of matching user terminals are paired to form a multi-antenna terminal group;
  • a data transmission unit configured to perform data transmission of the multi-antenna terminal group.
  • the base station further includes:
  • the loss tolerance setting unit is configured to preset a loss tolerance amount for each of the user terminals that open the guaranteed bit rate GBR service.
  • the loss tolerance setting unit further includes:
  • An actual service rate obtaining sub-unit configured to acquire an actual service rate of each of the user terminals that enable the GBR service in the first terminal group
  • An actual service rate determining sub-unit configured to determine whether an actual service rate of each of the user terminals that enable the GBR service is smaller than a target service rate of the user terminal that enables the GBR service;
  • a loss tolerance reduction subunit configured to reduce the actual according to the first predetermined transformation value when the actual service rate determination unit determines that the actual service rate of the user terminal that starts the GBR service is less than the target service rate The service rate is less than the opening of the target service rate The loss tolerance of the user terminal of the GBR service;
  • a loss tolerance increase subunit when the actual service rate of the user terminal for enabling the GBR service is not less than the target service rate, increasing the actual service rate according to the second predetermined transformation value is not less than the target service rate.
  • the first predetermined transformed value and the second predetermined transformed value are the same value;
  • the first predetermined transformed value and the second predetermined transformed value are different values.
  • the pairing unit is further configured to: when the pre-paired service rate of the first to-be-matched user terminal is lost, When the first to-be-matched user terminal is within the loss tolerance range, the first to-be-matched user terminal is not involved in the MU-MIM0 pairing process.
  • a base station for data transmission including:
  • a memory for storing a scheduling instruction
  • a processor configured to select, according to the scheduling instruction stored in the memory, a first to-be-matched user terminal in the first terminal group, and select N-1 second to-match user terminals in the second terminal group;
  • the first to-be-matched user terminal is the user terminal that opens the guaranteed bit rate GBR service in the first terminal group, where N is the total number of user terminals that the system allows to be paired, and is greater than or equal to 2;
  • the service rate of the pre-paired user service includes a pre-paired service rate of the first to-be-matched user terminal and a pre-pairing of the first to-be-matched user terminal with the N-1 second to-be-matched user terminals.
  • a total service rate after the multi-antenna terminal group is formed; determining whether the loss of the service rate after the pre-pairing of the first to-be-matched user terminal is in the first Within a preset loss tolerance range of the user terminal to be matched; when the loss of the pre-paired service rate of the first to-be-matched user terminal is in the loss If the total service rate is higher than the service rate before the pre-pairing of the first to-be-matched user terminal, determining the first to-be-matched user terminal and the N-1 second to-be-waited Matching user terminal pairs to form a multi-antenna terminal group;
  • a transceiver configured to perform data transmission of the multi-antenna terminal group.
  • the processor is further configured to preset a loss tolerance amount for each user terminal that opens the guaranteed bit rate GBR service.
  • the processor is further configured to acquire an actual service rate of the user terminal that enables the GBR service in the first terminal group ;
  • the user terminal that opens the GBR service whose actual service rate is less than the target service rate is reduced according to the first predetermined conversion value.
  • the user who opens the GBR service whose actual service rate is not less than the target service rate is increased according to the second predetermined conversion value.
  • the loss tolerance of the terminal is not less than the target service rate
  • the user terminal selected by the processor in the first terminal group is a scheduled user terminal; and the user terminal selected by the processor in the second terminal group is an unscheduled user terminal.
  • the processor is further configured to determine a service rate before the pre-pairing of the first to-be-matched user terminal, and determine the first to-be-waited Whether the loss of the service rate after the pre-pairing of the user terminal is within the loss tolerance of the first to-be-matched user terminal, further including:
  • the loss of the service rate before the pre-pairing of the first to-be-matched user terminal is not within the loss tolerance of the first to-be-matched user terminal.
  • the first to-be-matched user terminal does not participate in the MU-MIM0 pairing process.
  • An embodiment of the present invention provides a data transmission method and a base station, selecting a first to-be-matched user terminal in the first terminal group, and selecting N-1 second to-be-matched user terminals in the second terminal group; And determining whether the loss of the pre-paired service rate of the first to-be-matched user terminal relative to the service rate before the pre-pairing is within a loss tolerance amount; when the first to-be-matched user Determining the first to-be-matched user terminal when the loss of the pre-paired service rate of the terminal relative to the service rate before the pre-pairing is within the range of the loss tolerance amount Whether the total service rate of the multi-antenna terminal group is higher than the pre-pairing service rate of the first to-be-matched user terminal, and the first to-be-matched user terminal; When the total service rate of the multi-antenna terminal group is higher than the pre-pairing service rate of the first to-be-matched user terminal, the first to-be-matched user terminal and the The second to-be-matched user terminal
  • Embodiment 1 is a flowchart of a method for data transmission in Embodiment 1 of the present invention
  • Embodiment 2 is a flowchart of a method for data transmission in Embodiment 2 of the present invention
  • FIG. 3 is a flowchart of a method for dynamically maintaining loss tolerance in Embodiment 3 of the present invention
  • FIG. 4 is a flowchart of a method for data transmission according to Embodiment 3 of the present invention
  • Figure 5 is a block diagram of a base station in Embodiment 4 of the present invention.
  • FIG. 6 is a block diagram of a base station in Embodiment 4 of the present invention.
  • Figure 7 is a block diagram of a loss tolerance setting unit in Embodiment 4 of the present invention.
  • FIG. 8 is a schematic diagram of a base station according to Embodiment 4 of the present invention. detailed description
  • GSM Global System for Mobile Communications
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • a user terminal may also be called a user equipment (UE, User Equipment), a mobile terminal (MT, Mobile Terminal), a mobile station (MS, Mobile Station), etc., and may be accessed via a wireless access network (for example, RAN, Radio Access Network) communicates with one or more core networks.
  • UE User Equipment
  • MT Mobile Terminal
  • MS Mobile Station
  • RAN Radio Access Network
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station in WCDMA (referred to as Node B), or may be an evolved base station in LTE (referred to as eNB or e_NodeB, evolutional NodeB). ).
  • BTS Base Transceiver Station
  • Node B a base station in WCDMA
  • eNB evolved base station in LTE
  • e_NodeB evolutional NodeB
  • a base station may support/manage one or more cells. When the user terminal needs to communicate with the network, it will select a cell to initiate network access.
  • the GBR service is a service whose actual transmission rate must be higher than the specified transmission rate. Otherwise, the service quality cannot meet the customer's demand.
  • the real-time call service is a typical GBR service, if the specified transmission rate of the service is 100 kb/s (kilobyte). /second, kilobytes/second), the actual transmission rate is 80kb/s, the user may only hear intermittent sound during the call.
  • the antennas for transmitting data need to be paired first to form an antenna group having a plurality of antennas, and then the data is transmitted. In the actual application, the process of pairing the antennas is equivalent to the process of pairing the user terminals.
  • the pairing process in the embodiment of the present invention is not limited to two users, and may refer to multiple users.
  • An antenna group having several antennas is equivalent to a terminal group having a plurality of user terminals.
  • a terminal group For convenience of description, we refer to such a terminal group as a multi-antenna terminal group.
  • An embodiment of the present invention provides a data transmission method, as shown in FIG. 1, including the following steps:
  • the user terminal in the first terminal group is a scheduled user terminal
  • the user terminal in the second terminal group is an unscheduled user terminal.
  • the scheduled user terminal is the user terminal to which the channel has been assigned
  • N is the total number of user terminals allowed to be paired by the system, and is greater than or equal to two.
  • the pre-paired service rate includes a pre-paired service rate of the first to-be-matched user terminal, and a first to-be-matched user terminal and the N-1 second to-be-matched user terminals are paired to form the multi-antenna terminal group.
  • the total rate of business is a pre-paired service rate of the first to-be-matched user terminal, and a first to-be-matched user terminal and the N-1 second to-be-matched user terminals are paired to form the multi-antenna terminal group.
  • Determining when the loss of the pre-paired service rate of the first to-be-matched user terminal relative to the service rate before the pairing is within the range of the loss tolerance, determining the first to-be-matched user terminal and The total service rate of the N-1 second to-be-matched user terminals after the pairing of the multi-antenna terminal group is higher than the pre-pairing service rate of the first to-be-matched user terminal.
  • the total service rate of the first to-be-matched user terminal and the N-1 second to-be-matched user terminals after the multi-antenna terminal group is formed is higher than the pre-pairing of the first to-be-matched user terminal.
  • the service rate determines that the first to-be-matched user terminal is paired with the N-1 second to-be-matched user terminals to form a multi-antenna terminal group.
  • An embodiment of the present invention provides a method for data transmission, selecting a first to-be-matched user terminal in the first terminal group, and selecting N-1 second to-be-matched user terminals in the second terminal group; acquiring pre-paired services a rate; determining whether the loss of the pre-paired service rate of the first to-be-matched user terminal relative to the service rate before the pre-pairing is within a loss tolerance amount; when the first to-be-matched user terminal Determining, by the pairing of the first to-be-matched user terminal and the second to-be-matched user terminal, that the loss of the pre-paired service rate relative to the pre-pairing service rate is within the range of the loss tolerance amount Whether the total service rate after the multi-antenna terminal group is higher than the pre-pairing service rate of the first to-be-matched user terminal; when the first to-be-matched user terminal and When the total service rate of the second to-be-matched user terminal paired to form the multi-antenna terminal group is higher than the pre-pairing service rate of
  • An embodiment of the present invention provides a data transmission method, as shown in FIG. 2, including the following steps:
  • a fixed loss tolerance is preset in advance.
  • the system can set the loss tolerance of each user terminal that has the guaranteed bit rate GBR service to a fixed value according to the actual situation.
  • the actual situation may be that the GBR (Guaranteed Bi t Ra te) service opened by the user terminal is relatively simple.
  • the GBR service opened by the user terminal in a certain area is a real-time call service.
  • the first to-be-matched user terminal is a user terminal that enables a GBR (guaranteed bit rate) service in the first terminal group, where the first terminal group is a set of scheduled user terminals,
  • the second to-be-matched user terminal is an unscheduled user terminal; the second terminal group is a set of unscheduled user terminals;
  • N is a total number of user terminals that the system allows to be paired, and is greater than or equal to 2.
  • the MU-MIM0 system allows the maximum number of users in a multi-antenna terminal group to be an integer ⁇ , ⁇ greater than or equal to 2. After the first to-be-matched user terminal is selected in the first terminal group, the N-1 second to-match user terminals need to be selected for the first to-be-matched user terminal according to the system requirements.
  • the method for selecting a second user terminal to be matched may be: selecting a second user terminal to be matched from the second terminal group, and determining that the matching requirement is met, the first The to-be-matched user terminal and the second to-be-matched user terminal may form a multi-antenna terminal group. It should be pointed out that when ⁇ >2, it needs to be from the second terminal. N - 1 second to-be-matched user terminals are selected in the group.
  • the method for selecting the first to-be-matched user terminal and the second to-be-matched user terminal is not specifically limited, and may be randomly selected or sequentially selected in the order of the terminal group.
  • the MU-MIM0 pre-pairing is performed on the N user terminals selected in step 202 according to the a priori information, and the service rate after the pre-pairing of the first to-be-matched user terminal and the total service rate after the pre-pairing of the N user terminals are calculated.
  • the service rate after the pre-pairing of the first to-be-matched user terminal is that after the first to-be-matched user terminal and the N-1 second to-be-matched user terminals form a multi-antenna terminal group, the first to-be-matched The service rate of the user terminal.
  • the total service rate after the pre-pairing of the N user terminals is the sum of the service rates of the first to-be-matched user terminal and the N-1 second to-be-matched user terminals.
  • the service rate after the pre-pairing of the first to-be-matched user terminal and the total service rate after the pre-pairing of the N user terminals are recorded in a data table provided by the base station.
  • the value of ⁇ is 2, and the situation is that a first to-be-matched user terminal is pre-paired with a second to-be-matched user terminal. More generally, the value of ⁇ is greater than 2, that is, more than 2 user terminals perform pre-pairing.
  • the calculated data rate of the pre-paired user terminal and the pre-paired service rate are recorded on the data table provided by the system.
  • the service rate before the pre-pairing of the selected first to-be-matched user terminal is the transmission rate of the SU-MIM0 by the user terminal.
  • the data table is stored in the base station, and the data recorded in the data table can be acquired at any time as needed.
  • the service rate before the pre-pairing is recorded in a data table provided by the base station.
  • the pre-pairing service rate mentioned in step 204 and the loss of the pre-paired service rate should be understood in a broad sense, that is, through a certain calculation method, the pre-pairing service rate and pairing can be reflected.
  • the relationship between the size of the subsequent service rate belongs to the loss concept in this step, such as: the difference between the service rate before pairing and the service rate after pairing; the service rate before pairing is divided by the service rate after pairing. The quotient; the ratio of the difference between the pre-paired service rate minus the paired service rate and the pre-paired service rate.
  • the service rate before pre-pairing of the first to-be-matched user terminal is 10000 bits/second; the service rate after pre-pairing of the first to-be-matched user terminal is 6200 bits/second; the second to-be-matched user terminal The service rate after pre-pairing is 5200 bits/second.
  • the subsequent step 206 is not performed, that is, the first to-be-matched user terminal does not perform the MU- MIM0 pairing. That is, the N-1 second to-be-matched user terminals in the second terminal group have a service rate that is pre-paired with the N-1 second to-match user terminals.
  • the loss of the traffic rate before the pre-pairing of the first to-be-matched user terminal is within the range of the loss tolerance amount set in step 201.
  • the second terminal group there are no N-1 second to-be-matched user terminals and the first to-be-matched user terminals form a multi-antenna terminal group for data transmission.
  • step 206 When the total service rate of the N user terminals is higher than the pre-pairing service rate of the first to-be-matched user terminal, determine that the N user terminals form a multi-antenna terminal group, and perform MU. - MIM0 pairing, so that the base station and the multi-antenna terminal group perform data transmission.
  • the total service rate of the pre-paired user terminals of the N user terminals is higher than the service rate of the first pair of user terminals before the pre-pairing, which is specifically in the example 1, that is, the total service rate after the pre-pairing 1 1400 bits/second is greater than the service rate of 10000 bits/second before the pre-pairing of the first to-be-matched user terminal.
  • the loss tolerance set according to the system operation condition is 0.5
  • the first to-be-matched user terminal, the second-numbered second-to-match user terminal, and the second-numbered second-to-match user terminal perform MU-MIM0 pre-pairing.
  • the service rate of the first to-be-matched user terminal is 10000 bits/second; the service rate of the first to-be-matched user terminal is 6200 bits/second; the service of the second-to-be-matched user terminal is pre-paired.
  • the rate is 3200 bits/second, and the service rate after pre-pairing of the second to-be-matched user terminal on the 2nd is 3600 bits/second.
  • the first to-be-matched user terminal, the second-to-be-matched user terminal, and the second-numbered second-to-match user terminal satisfy the condition of forming a multi-antenna terminal group, and can form a multi-antenna terminal group, and determine the three user terminals to perform MU. -MIM0 pairing.
  • the embodiment provides a data transmission method.
  • a fixed loss tolerance is set, and then a first to-be-matched user terminal is selected in the first terminal group, and N-1 second to-be-matched users are selected in the second terminal group.
  • One embodiment of the present invention provides a method of data transmission.
  • the paired successful multi-antenna terminal group can improve the throughput of the system, but at the expense of the transmission amount per unit time of a single user terminal.
  • the user terminal that enables the GBR service must guarantee the data transmission amount per unit time, that is, the service rate. Therefore, the service rate of the user terminal that starts the GBR service in the multi-antenna terminal group cannot be reduced to the service rate that the user terminal of the GBR service must guarantee. .
  • the rate of the GBR service of a user terminal A must be guaranteed to be 1000 bits/second. If the service rate of the user terminal A after pairing to the multi-antenna terminal group is 800 bits/second, the user terminal A cannot participate in pairing.
  • the parameter determining whether the user terminal can be paired to the multi-antenna terminal group is the loss tolerance, and the user terminal can perform pairing when the service rate loss after the pre-pairing of the user terminal is within the range of the loss tolerance amount.
  • the user terminal described in this paragraph is the first to-be-matched user terminal in Embodiment 1 and the following description.
  • the first to-be-matched user terminal may have different services at different times or may be different at different times.
  • User terminal matches For example, the first to-be-matched user terminal is a real-time call service during the time period t1 to t2 (the service rate that must be guaranteed is 1000 bits/second), and the video call service is set in the time period t 2 to t 3 The service rate that must be guaranteed is 2000 bits/second.
  • the real-time call service and the video call service are all GBR services, but the video call service needs to guarantee a higher service rate than the real-time call service. If the loss tolerance is a predetermined fixed value, then the service rate of the user terminal is lower than the service rate that must be guaranteed. Therefore, the system needs to dynamically maintain a loss tolerance for each user terminal.
  • the dynamic maintenance loss tolerance includes the following steps:
  • the base station maintains a loss tolerance for each user terminal that includes the GBR service.
  • the reason is that the terminal that includes the GBR service in the second terminal group may be selected by the base station in the next data transmission process.
  • the first terminal group This can reduce the pairing process and save on base station expenses.
  • the target traffic rate is pre-stored in the base station.
  • the target service rate is the minimum service standard for each service. Simply put, below the target rate, the service cannot meet the customer's needs. In actual applications, the phenomenon that the actual service rate is lower than the target service rate may be caused by the intermittent sound of the real-time call service, or the phenomenon that the upload data service takes a long time to upload.
  • Steps 305 and 306 may exist in an alternative manner, or may exist at the same time.
  • steps 303 to 306 are performed for each user terminal that starts the GBR service in the first terminal group, so as to be the first terminal group. All user terminals that enable GBR services maintain a separate loss tolerance.
  • the first predetermined transform value described in step 305 may take the same value as the second predetermined transform value described in step 306, or may take a different value. In practical use, the first predetermined transform value takes a larger value, and when the second predetermined transform value takes a smaller value, a better effect can be obtained in the data transmission process.
  • the dynamic maintenance loss tolerance method provided in this embodiment may be maintained according to a preset period of the system, or may be triggered by an event, such as manual triggering.
  • Base station saves dynamic maintenance Loss tolerance.
  • the loss tolerance can be set for the user terminal that starts the guaranteed bit rate GBR service according to the loss tolerance of dynamic maintenance.
  • the embodiment provides a method for dynamically maintaining the loss tolerance, and obtains the actual service rate of each user terminal that starts the GBR service in the first terminal group according to the preset maintenance period of the system, and selects the actual service of the terminal.
  • the loss tolerance of the terminal is reduced according to a predetermined transform value, and when the actual service rate of the selected terminal is not less than the target service rate, the loss tolerance of the terminal is increased according to the transformed value.
  • the loss tolerance described in step 401 can be set according to different situations, and can be set to a fixed loss tolerance or dynamic maintenance loss tolerance.
  • the step is to dynamically maintain the loss tolerance amount according to the maintenance period preset by the system.
  • the loss tolerance of all user terminals can be the same value before the loss tolerance is changed.
  • the base station maintains a loss tolerance for each user terminal that includes the GBR service in the first terminal group.
  • the loss tolerance may be an interval between one value and another, such as an interval greater than or equal to 0 and less than or equal to one.
  • the user terminals that send the service request are respectively divided into the first terminal group and the second terminal group according to a predefined rule.
  • the specific scheme for dividing the first terminal group and the second terminal group may be: first, randomly selecting a specified number of terminals from all user terminals (terminals that receive a service request from the base station in the detection period) These terminals are respectively allocated channels for transmitting data, and these terminals are listed as the first terminal group, and the remaining terminals that are not allocated channels for transmitting data are listed as the second terminal group.
  • N is the total number of user terminals that the system allows to be paired, and is greater than or equal to 2, that is, one first to be matched user terminal and N-1 second to-be-matched user terminals are allowed to perform MU-MIM0 pairing. 405. Obtain a service rate after pre-pairing.
  • the MU-MIM0 pre-pairing is performed on the N user terminals selected in step 404 according to the a priori information, and the service rate after the pre-pairing of the first to-be-matched user terminal and the total service rate after the pre-pairing of the N user terminals are calculated.
  • the service rate after the pre-pairing of the first to-be-matched user terminal is that after the first to-be-matched user terminal and the N-1 second to-be-matched user terminals form a multi-antenna terminal group, the first to-be-matched The service rate of the user terminal.
  • the total service rate after the pre-pairing of the N user terminals is the sum of the service rates of the first to-be-matched user terminal and the N-1 second to-be-matched user terminals.
  • the service rate after the pre-pairing of the first to-be-matched user terminal and the total service rate after the pre-pairing of the N user terminals are recorded in a data table provided by the base station.
  • the data sheet is obtained by correlation algorithms and experiments and recorded in the control protocol provided by the MU-MIM0 system.
  • the paired service rate is related to parameters such as the maximum number of user terminals in the multi-antenna terminal group allowed by the MU-MIM0 system.
  • the dynamic maintenance loss tolerance is based on the preset maintenance period of the system. Therefore, the loss tolerance of the first to-be-matched user terminal also dynamically changes according to the preset maintenance period of the system.
  • step 408 is performed; when the first to-be-matched
  • step 407 is performed.
  • the service rate before the pre-pairing is recorded in the same MU-MIM0 as the pre-paired service rate.
  • the system control protocol provides the data sheet.
  • the data table is pre-stored in the base station.
  • the service rate before pairing is related to parameters such as the maximum number of user terminals in the multi-antenna terminal group allowed by the MU-MIM0 system.
  • step 406 The determination process in step 406 is now illustrated by way of example:
  • the loss of the service rate before the pre-pairing of the first to-be-matched user terminal may be defined as the difference between the service rate before the pre-pairing of the first to-be-matched user terminal and the pre-paired service rate.
  • the range of the loss tolerance is 0.5.
  • the range of the loss tolerance is greater than 0 and less than 0.5. If the service rate before the pre-pairing of the first to-be-matched user terminal is 2500 bits/second, the pre-paired The service rate is 2000 bits/second.
  • step 406 the judgment condition in step 406 is satisfied, the judgment of step 408 is continued. If all the user terminals in the second terminal group cannot satisfy the judgment condition of step 406, the first matching user terminal MU-MIM0 pairing process ends, that is, the base station cannot select the second to-be-matched from the second terminal group.
  • the user terminal and the first to-be-matched user terminal form a multi-antenna terminal group.
  • the second-to-match user terminal of the second terminal group cannot be configured into a multi-antenna terminal group.
  • Data transmission that is, the first to-be-matched user terminal does not participate in the MU-MIM0 pairing process, and can only use a separate channel for separate data transmission.
  • step 408 is performed.
  • step 406 does not necessarily result in successful pairing, and the judgment is continued according to the subsequent process.
  • step 409 is performed. Otherwise, go to step 407.
  • the determining condition of step 408 is to ensure that the total service rate of the multi-antenna terminal group composed of the pairing is higher than the service rate before the pairing of the first to-be-matched user terminal. That is, the multi-antenna terminal group can be formed only after the judgment condition of step 408 is satisfied, so that the terminal realizes data transmission and reception with the base station together in units of multiple antenna terminal groups. If the judgment condition of step 408 is not satisfied, then return to step 407, and another N-1 second to-be-matched user terminals are selected, and then the process proceeds to step 405, and the subsequent steps 406 and 408 are performed.
  • steps 404 to 409 illustrate how a first to-be-matched user terminal selects N-1 second to-be-matched user terminals and finally forms a multi-antenna terminal group.
  • the first to-be-matched user terminal having the GBR service may be selected from the first terminal group, and step 404 is repeatedly performed. Up to 409 to continue to form a multi-antenna terminal group.
  • the user terminal that has participated in the pairing operation no longer participates in pairing in the process of repeatedly performing steps 404 to 409.
  • the user terminal participating in the pairing operation includes the user terminal that has been selected to participate in the pairing and is not satisfied. User terminal with pairing conditions.
  • the first terminal group may have both a user terminal including a GBR service and a user terminal not including a GBR service.
  • the user terminal that does not include the GBR service it is only necessary to select the second to-be-matched user terminal from the second terminal group, and then directly perform the steps 408 to 409 of the embodiment.
  • the specific value of the actual scenario N is determined by the support capability of the base station.
  • steps 404 through 409 For a more detailed description of steps 404 through 409, an example is given:
  • the base station receives a service request from the user terminals A, B, C, D, E, F, G, H, and I, where the service requests of the user terminals A and B are included.
  • GBR service the GBR service is not included in the service request of the remaining terminals, and the maximum use of the multi-antenna terminal group allowed by the system
  • the number of households is 3.
  • the base station divides the user terminals, B, and C into the first terminal group, and the terminals D, E, F, G, H, and I are the second terminal group (of course, in actual cases, other grouping results may also be, for example, B, C and D are divided into a first terminal group, and E, F, G, H, and I are divided into second terminal groups, which are not described herein again.
  • the user terminal A is selected as the first to-be-matched user terminal, and two of the second terminal group are selected as the second to-be-matched user terminal corresponding to the user terminal A. If the user terminal A and any two second to-be-matched user terminals form a multi-antenna terminal group, the loss of the pre-paired service rate of the user terminal A relative to the service rate before the pairing is not the loss corresponding to the terminal A. Within the range of tolerance, the user terminal A no longer participates in the MU-MIM0 pairing; and further determines the terminal B.
  • the user terminal B and the second terminal group are Two user terminals (here 4 are set to terminals D and E) are pre-paired.
  • the total service rate is higher than the pre-pairing service rate of the user terminal B, so that the MU-MIM0 pairing requirement is met, and the members of the multi-antenna terminal group corresponding to the user terminal B are the user terminals B, D, and E; then, the system will be the user.
  • the terminal C performs MU-MIM0 pairing with two user terminals (here, H is not for the user terminals F and G) in the second terminal group. Since the user terminals D and E have already performed MU-MIM0 pairing with the user terminal B, Therefore, the MU-MIM0 pairing of the user terminal C is no longer involved. Since the user terminal C does not include the GBR service, the loss tolerance judgment is not performed. It is determined that the total service rate of the user terminals F and G is lower than the service rate of the terminal C before the pairing, and therefore does not meet the requirement, and continues from the second terminal group. The remaining user terminals H and I are selected to be paired with the terminal C.
  • the members of the multi-antenna terminal group are user terminals C, H, and I.
  • the pairing result is that the members of the multi-antenna terminal group corresponding to the user terminal B are the user terminals B, D, and E, and the multi-antenna terminal group corresponding to the user terminal C is User terminals C, H and I.
  • a user terminal may include several services at the same time. As long as one of the services is a GBR service, it is required to perform the determination according to the steps described in this embodiment.
  • the embodiment provides a data transmission method.
  • the first step is to dynamically maintain a loss tolerance. First, the actual service rate of the user terminal that starts the GBR service in the first terminal group is obtained, and then the first terminal group is started. One of the user terminals of the GBR service is selected to determine whether the actual service rate of the selected terminal is less than the corresponding target service rate. When the actual service rate of the selected terminal is less than the target service rate, the predetermined conversion value is reduced. The loss tolerance of the terminal.
  • the loss tolerance of the terminal is increased according to a predetermined transformed value.
  • a first to-be-matched user terminal is selected in the first terminal group, and N-1 second to-be-matched user terminals are selected in the second terminal group; the pre-paired service rate is obtained; and then the first to-be-matched is determined.
  • the loss of the pre-paired service rate of the user terminal relative to the service rate before the pre-pairing is within a loss tolerance; when the pre-paired service rate of the first to-be-matched user terminal And determining, after the loss of the service rate before the pairing is within the range of the loss tolerance, determining that the first to-be-matched user terminal and the second to-be-matched user terminal are paired to form the multi-antenna terminal group Whether the total service rate is higher than the pre-pairing service rate of the first to-be-matched user terminal; the service after the first to-be-matched user terminal and the second to-be-matched user terminal are paired to form a multi-antenna terminal group When the total rate is higher than the pre-pairing service rate of the first to-be-matched user terminal, the first to-be-matched user terminal is paired with the second to-be-matched user terminal.
  • the base station includes: a selecting unit 51, configured to select a first to-match user terminal in the first terminal group, and select N in the second terminal group. -1 second to-be-matched user terminal; wherein the first to-be-matched user terminal is a user terminal that enables a guaranteed bit rate GBR service in the first terminal group; N is a total number of user terminals that the system allows to be paired, and Greater than or equal to 2.
  • the pre-pairing service rate obtaining unit 52 is configured to obtain a pre-paired service rate.
  • the provisioning The service rate after the pairing includes the service rate pre-paired by the first to-be-matched user terminal, and the total service after the first to-be-matched user terminal and the N-1 second to-be-matched user terminals are paired to form the multi-antenna terminal group. rate.
  • the first determining unit 53 is configured to determine whether the loss of the pre-paired service rate of the first to-be-matched user terminal is within a range of a corresponding loss tolerance amount, that is, determining the Whether the loss of the service rate after the pre-pairing of the first to-be-matched user terminal is smaller than the loss tolerance of the first to-be-matched user terminal.
  • a second determining unit 54 configured to: when the first determining unit 53 determines that the loss of the pre-paired service rate of the first to-be-matched user terminal is within a range of the loss tolerance amount, Whether the total service rate of the first to-be-matched user terminal and the N-1 second to-be-matched user terminals are pre-paired to form the multi-antenna terminal group is higher than the pre-pairing service of the first to-be-matched user terminal rate.
  • the pairing unit 55 is configured to: when the second determining unit 54 determines that the total service rate is higher than the pre-pairing service rate of the first to-be-matched user terminal, the first to-be-matched user terminal and the The N-1 second to-be-matched user terminals are paired to form a multi-antenna terminal group.
  • the data transmission unit 56 is configured to perform data transmission of the multi-antenna terminal group.
  • the base station further includes: a loss tolerance setting unit 57, and is further configured to preset a fixed loss tolerance amount for each user terminal that opens the guaranteed bit rate GBR service.
  • the loss tolerance setting unit 57 further includes: an actual service rate obtaining subunit 571, configured to acquire each user of the first terminal group that enables the GBR service The actual service rate of the terminal.
  • the actual service rate determining sub-unit 572 is configured to determine whether the actual service rate of each of the user terminals that enable the GBR service is smaller than the target service rate of the user terminals that enable the GBR service.
  • a loss tolerance reduction subunit 573 when the actual service rate of the user terminal that starts the GBR service is smaller than the target service rate, reducing the actual service rate to be smaller than the target service rate according to the first predetermined transformation value Said loss tolerance of the user terminal that enables the GBR service And subtracting the first predetermined transformed value from the loss tolerance of the user terminal.
  • a loss tolerance increase subunit 574 configured to: when the actual service rate of the user terminal that starts the GBR service is not less than the target service rate, increase the actual service rate according to the second predetermined transformation value is not less than The loss tolerance of the user terminal that enables the GBR service of the target service rate, that is, the loss tolerance of the user terminal is added to the second predetermined transformed value.
  • first predetermined transform value and the second predetermined transform value are the same value; or the first predetermined transform value and the second predetermined transform value are different values.
  • the pairing unit 55 is further configured to: when the loss of the pre-paired service rate of the first to-be-matched user terminal is not always within the loss tolerance range of the first to-be-matched user terminal, The first to-be-matched user terminal is not involved in the MU-MIM0 pairing process.
  • the user terminal selected by the selecting unit 51 in the first terminal group is the scheduled user terminal; and the user terminal selected by the selecting unit 51 in the second terminal group is the unscheduled user terminal.
  • the embodiment provides a base station, selecting a first to-be-matched user terminal in the first terminal group, and selecting N-1 second to-be-matched user terminals in the second terminal group; obtaining a pre-paired service rate; Whether the loss of the pre-paired service rate of the first to-be-matched user terminal relative to the service rate before the pairing is within a range of corresponding loss tolerance; when the first to-be-matched user terminal is Determining the first to-be-matched user terminal and the N-1 second to-be-matched user terminals when the loss of the pre-paired traffic rate relative to the pre-pairing traffic rate is within the range of the loss tolerance amount Whether the total service rate of the multi-antenna terminal group is higher than the pre-pairing service rate of the first to-be-matched user terminal; and the first to-be-matched user terminal and the N-1 second The first to-be-matched user terminal, when the total service rate of the pair of user terminals to be combined with the multi-antenna terminal group is higher than the pre-pairing service
  • the embodiment further provides a base station, including:
  • the memory 61 is configured to store a scheduling instruction.
  • the processor 62 is configured to set a loss tolerance amount for the user terminal that starts the guaranteed bit rate GBR service according to the scheduling instruction stored by the memory 61; select a first to-match user terminal in the first terminal group, and And selecting, by the second terminal group, N-1 second to-be-matched user terminals, where the first to-be-matched user terminal is the user terminal that opens the guaranteed bit rate GBR service in the first terminal group, where N is allowed to be paired by the system.
  • the total number of user terminals is greater than or equal to 2; the service rate after the pre-pairing is obtained; the service rate after the pre-pairing includes the service rate after the pre-pairing of the first to-be-matched user terminal, and the first to-be-matched Determining the total service rate of the multi-antenna terminal group after the user terminal is pre-paired with the N-1 second to-be-matched user terminals; determining the first to-be-waited service rate before the pre-pairing of the first to-be-matched user terminal Whether the loss of the service rate after the pre-pairing of the user terminal is within the range of the loss tolerance of the first to-be-matched user terminal, that is, determining the Whether the loss of the service rate after the pre-pairing of the matching user terminal is smaller than the loss tolerance of the first to-be-matched user terminal; when the pre-paired service rate of the first to-be-matched user terminal is relative to the pairing If the loss of the service rate is within the range of the loss tolerance, if the first to-
  • the transceiver 63 is configured to perform data transmission of the multi-antenna terminal group.
  • the processor 62 is further configured to preset a fixed loss tolerance amount for each of the user terminals that open the guaranteed bit rate GBR service.
  • the processor 62 is further configured to obtain an actual service rate of each user terminal that starts the GBR service in the first terminal group, and determine an actual service of each user terminal that starts the GBR service. Whether the rate is smaller than the target service rate corresponding to the user terminal that enables the GBR service; when the actual service rate of the user terminal that starts the GBR service is smaller than the target service rate, the actual value is reduced according to the first predetermined transformation value.
  • the loss tolerance of the user terminal of the GBR service with the service rate being less than the target service rate that is, the loss tolerance of the user terminal minus the first predetermined transformation value; and/or when Open the user of the GBR service
  • the loss tolerance of the user terminal that starts the GBR service with the actual service rate not less than the target service rate is increased according to the second predetermined transformation value.
  • the loss tolerance of the user terminal is added to the second predetermined transformed value.
  • the user terminal selected by the processor in the first terminal group is a scheduled user terminal; and the user terminal selected by the processor in the second terminal group is an unscheduled user terminal.
  • the processor 62 is further configured to: when the service rate of the first to-be-matched user terminal is pre-paired, the loss of the service rate before the pre-pairing of the first to-be-matched user terminal is not in the first The first to-be-matched user terminal does not participate in the MU-MIM0 pairing process when the loss tolerance of the user terminal is to be matched.
  • the embodiment provides a base station, which selects a first to-be-matched user terminal in the first terminal group, and selects N-1 second to-be-matched user terminals in the second terminal group; obtains a pre-paired service rate; and then determines Whether the loss of the pre-paired service rate of the first to-be-matched user terminal relative to the service rate before the pre-pairing is within a range of loss tolerance; when the pre-pairing of the first to-be-matched user terminal And determining that the first to-be-matched user terminal and the second to-be-matched user terminal are paired to form the multi-antenna when the loss of the service rate relative to the service rate before the pre-pairing is within the range of the loss tolerance amount.
  • the terminal pairings form a multi-antenna terminal group, so that the base station and the multi-antenna terminal group perform data transmission.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. .
  • the technical solution of the present invention which is essential or contributes to the prior art, can be embodied in the form of a software product.
  • the computer software product is stored in a readable storage medium, such as a floppy disk, a hard disk or an optical disk of a computer, and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the present invention.
  • a computer device which may be a personal computer, a server, or a network device, etc.

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Abstract

本发明的实施例公开一种数据传输的方法和基站。涉及通信领域,解决MU-MIMO系统中不区分用户终端的业务要求,用户终端单位时间的传输数据量和系统的数据吞吐量低的技术问题。一种数据传输的方法:首先,在第一终端组中选一个第一待匹配用户终端,并在第二终端组中选N-1个第二待匹配用户终端;然后判断预配对后的业务速率的损失是否在对应的损失容忍量的范围内;当在所述损失容忍量的范围内时,判断配对后的多天线终端组的业务总速率是否高于第一待匹配用户终端的预配对前的业务速率;若高于,则第一待匹配用户终端与第二待匹配用户终端配对组成多天线终端组。本发明主要应用于基站的MU-MIMO业务中。

Description

一种数据传输的方法和基站 技术领域 本发明涉及通信领域, 特别涉及一种数据传输的方法和基站。 背景技术
多输入多输出 ( Mul t i Input Mul t i Output , MIMO )技术是在无线通信 中, 在不增加发送端发射功率的情况下, 增加数据吞吐量的一种技术, 其机 理是在发送端设置多个天线并各自独立的发送数据, 同时在接收端同样设置 多个天线接收发送端发送的数据。
在一种常见的应用场景下, 在多用户 MIMO (Mul t i-User MIMO, MU-MIMO) 系统的用户终端可以安装一个天线, 基站安装多个天线, 由于基站下有多个 用户终端, 因此基站可将多个用户终端进行匹配组成一个多天线终端组, 然 后传输数据。
多天线终端组的组成是 MU-MIMO技术中的重要步骤, 首先选定若干用户 终端, 作为第一终端组。 然后从剩下的用户终端中选取 N-1个用户终端; N为 MU-MIMO 系统允许匹配的最大用户终端数; 将从第一终端组中选取的用户终 端和选取的 N-1个用户终端按照预设定配对规则完成匹配,组成一个多天线终 端组。 按照上述方法, 可为第一终端组中的其它用户终端配对。 从而继续组 成多天线终端组。
在实际应用中, 一个用户终端有多个业务, 每个业务对单位时间内传输 的数据量有不同要求, 比如通话业务需要实时传输数据, 在单位时间内就需 要较大的传输数据量以保证业务质量; 邮件业务仅需在规定的时间内完成即 可, 对单位时间内传输的数据量的要求较小。 现有技术中, 不区分用户终端 的业务要求, 对用户终端进行配对组成多天线终端组, 降低了用户终端单位 时间的传输数据量和系统的数据吞吐量。 发明内容
本发明的实施例提供一种数据传输的方法和基站, 解决现有技术中不区 分用户终端的业务要求的情况下对用户终端进行配对, 降低用户终端单位时 间的传输量和系统的数据吞吐量的技术问题。
为达到上述目的, 本发明实施例釆用如下技术方案:
第一方面, 提供一种数据传输的方法, 包括:
在第一终端组中选一个第一待匹配用户终端, 并在第二终端组中选 N-1 个第二待匹配用户终端; 其中, 所述第一待匹配用户终端为所述第一终端组 中所述开启保证比特率 GBR业务且已调度的用户终端, N为系统允许配对的用 户终端的总数, 且大于或等于 2 ;
获取预配对后的业务速率; 所述预配对后的业务速率包括第一待匹配用 户终端预配对后的业务速率和第一待匹配用户终端与所述 N-1 个第二待匹配 用户终端预配对组成所述多天线终端组后的业务总速率;
相对所述第一待匹配用户终端预配对前的业务速率, 判断所述第一待匹 配用户终端预配对后的业务速率的损失是否在所述第一待匹配用户终端的预 设的损失容忍量范围内;
当所述第一待匹配用户终端的所述预配对后的业务速率的损失在所述损 失容忍量的范围内时, 如果所述业务总速率高于所述第一待匹配用户终端预 配对前的业务速率, 则确定所述第一待匹配用户终端与所述 N-1 个第二待匹 配用户终端配对组成多天线终端组;
进行多天线终端组的数据传输。
结合第一方面, 在第一方面的第一种可能的实现方式中, 所述预设的损 失容忍量通过如下方式进行设置:
为每个所述开启保证比特率 GBR业务的用户终端分别预先设置一个固定 的损失容忍量。
结合第一方面, 在第一方面的第二种可能的实现方式中, 所述预设的损 失容忍量通过如下方式进行设置:
获取所述第一终端组中的每个所述开启 GBR业务的用户终端的实际业务 速率;
判断每个所述开启 GBR业务的用户终端的实际业务速率是否小于所述开 启 GBR业务的用户终端各自对应的目标业务速率;
当所述开启 GBR业务的用户终端的实际业务速率小于所述目标业务速率 时, 按照第一预定的变换值减少所述实际业务速率小于所述目标业务速率的 所述开启 GBR业务的用户终端的所述损失容忍量; 和\或
当所述开启 GBR业务的用户终端的实际业务速率不小于所述目标业务速 率时, 按照第二预定的变换值增加所述实际业务速率不小于所述目标业务速 率的所述开启 GBR业务的用户终端的所述损失容忍量。
在第一方面的第二种可能的实现方式中, 所述第一预定的变换值与所述 第二预定的变换值为同一值; 或
所述第一预定的变换值与所述第二预定的变换值为不同值。
结合第一方面, 在第一方面的第四种可能实现方式中, 所述相对所述第 一待匹配用户终端预配对前的业务速率, 判断所述第一待匹配用户终端预配 对后的业务速率的损失是否在所述第一待匹配用户终端的损失容忍量范围 内, 进一步包括:
当所述第一待匹配用户终端预配对后的业务速率相对于所述第一待匹配 用户终端预配对前的业务速率的损失始终不在所述第一待匹配用户终端的损 失容忍量范围内时, 所述第一待匹配用户终端不参与 MU-MIM0配对处理。
结合第一方面、 第一方面的第一种可能的实现方式, 第一方面的第二种 可能的实现方式, 第一方面的第三种可能的实现方式, 第一方面的第四种可 能的实现方式; 所述第一终端组为已调度用户终端的集合, 所述第二待匹配 用户终端为未调度用户终端; 所述第二终端组为所述未调度用户终端的集合。
第二方面, 提供一种基站, 包括:
选择单元, 用于在第一终端组中选一个第一待匹配用户终端, 并在第二 终端组中选 N-1 个第二待匹配用户终端; 其中, 所述第一待匹配用户终端为 所述第一终端组中开启保证比特率 GBR业务的用户终端, N为系统允许配对的 用户终端的总数, 且大于或等于 2 ;
预配对业务速率获取单元, 用于获取预配对后的业务速率; 所述预配对 后的业务速率包括第一待匹配用户终端预配对后的业务速率和第一待匹配用 户终端与所述 N-l 个第二待匹配用户终端配对组成所述多天线终端组后的业 务总速率;
第一判断单元, 用于判断所述第一待匹配用户终端的所述预配对后的业 务速率相对于配对前的业务速率的损失是否在所述第一待匹配用户终端的预 设的损失容忍量的范围内;
第二判断单元, 用于当所述第一判断单元判断出所述第一待匹配用户终 端的所述预配对后的业务速率的损失在所述损失容忍量的范围内时, 判断所 述第一待匹配用户终端与所述 N-1 个第二待匹配用户终端预配对组成所述多 天线终端组后的业务总速率是否高于所述第一待匹配用户终端的配对前的业 务速率;
配对单元, 用于当所述第二判断单元判断出所述业务总速率高于所述第 一待匹配用户终端的配对前的业务速率时, 所述第一待匹配用户终端与所述 N-1个第二待匹配用户终端配对组成多天线终端组;
数据传输单元, 用于进行所述多天线终端组的数据传输。
结合第二方面, 在第二方面的第一种可能的实现方式中, 所述基站还包 括:
损失容忍量设置单元, 用于为每个所述开启保证比特率 GBR业务的用户 终端分别预先设置一个损失容忍量。
结合第二方面,在第二方面的第二种可能的实现中,所述损失容忍量设置 单元还包括:
实际业务速率获取子单元, 用于获取所述第一终端组中的每个所述开启 GBR业务的用户终端的实际业务速率;
实际业务速率判断子单元, 用于判断每个所述开启 GBR业务的用户终端 的实际业务速率是否小于所述开启 GBR业务的用户终端各自对应的目标业务 速率;
损失容忍量减少子单元, 用于当所述实际业务速率判断单元判断出所述 开启 GBR业务的用户终端的实际业务速率小于所述目标业务速率时, 按照第 一预定的变换值减少所述实际业务速率小于所述目标业务速率的所述开启 GBR业务的用户终端的所述损失容忍量; 和\或
损失容忍量增加子单元, 用于所述开启 GBR业务的用户终端的实际业务 速率不小于所述目标业务速率时, 按照第二预定的变换值增加所述实际业务 速率不小于所述目标业务速率的所述开启 GBR业务的用户终端的所述损失容 忍量。
结合第二方面的第二种可能的实现方式, 在第三种可能的实现方式中, 所述第一预定的变换值与所述第二预定的变换值为同一值; 或
所述第一预定的变换值与所述第二预定的变换值为不同值。
结合第二方面, 在第二方面的第四种可能的实现方式中, 所述配对单元, 还用于当所述第一待匹配用户终端的所述预配对后的业务速率的损失始终不 在所述第一待匹配用户终端的损失容忍量范围内时, 使所述第一待匹配用户 终端不参与 MU-MIM0配对处理。
第三方面, 提供一种数据传输的基站, 包括:
存储器, 用于存储调度指令;
处理器, 用于根据所述存储器存储的所述调度指令, 在第一终端组中选 一个第一待匹配用户终端, 并在第二终端组中选 N-1个第二待匹配用户终端; 其中,所述第一待匹配用户终端为所述第一终端组中所述开启保证比特率 GBR 业务的用户终端, N为系统允许配对的用户终端的总数, 且大于或等于 2 ; 获 取预配对后的业务速率; 所述预配对后的业务速率包括所述第一待匹配用户 终端预配对后的业务速率和所述第一待匹配用户终端与所述 N-1 个第二待匹 配用户终端预配对组成多天线终端组后的业务总速率; 相对所述第一待匹配 用户终端预配对前的业务速率, 判断所述第一待匹配用户终端预配对后的业 务速率的损失是否在所述第一待匹配用户终端的预设的损失容忍量范围内; 当所述第一待匹配用户终端的所述预配对后的业务速率的损失在所述损失容 忍量的范围内时, 如果所述业务总速率高于所述第一待匹配用户终端预配对 前的业务速率, 则确定所述第一待匹配用户终端与所述 N-1 个第二待匹配用 户终端配对组成多天线终端组;
收发器, 用于进行所述多天线终端组的数据传输。 结合第三方面, 在第一种可能的实现方式中, 所述处理器, 还用于为每 个所述开启保证比特率 GBR业务的用户终端分别预先设置一个损失容忍量。
结合第三方面, 在第三方面的第二种可能的实现方式中, 所述处理器, 还用于获取所述第一终端组中的每个所述开启 GBR业务的用户终端的实际业 务速率;
判断每个所述开启 GBR业务的用户终端的实际业务速率是否小于所述开 启 GBR业务的用户终端各自对应的目标业务速率;
当所述开启 GBR业务的用户终端的实际业务速率小于所述目标业务速率 时, 按照第一预定的变换值减少所述实际业务速率小于所述目标业务速率的 所述开启 GBR业务的用户终端的所述损失容忍量; 和\或
当所述开启 GBR业务的用户终端的实际业务速率不小于所述目标业务速 率时, 按照第二预定的变换值增加所述实际业务速率不小于所述目标业务速 率的所述开启 GBR业务的用户终端的所述损失容忍量。
在第三方面, 第一终端组中供所述处理器选择的用户终端为已调度用户 终端; 第二终端组中供所述处理器选择的用户终端为未调度用户终端。
结合第三方面, 在第三方面的第三种可能的实现方式中, 所述处理器还 用于所述相对所述第一待匹配用户终端预配对前的业务速率, 判断所述第一 待匹配用户终端预配对后的业务速率的损失是否在所述第一待匹配用户终端 的损失容忍量范围内, 进一步包括:
当所述第一待匹配用户终端预配对后的业务速率相对于所述第一待匹配 用户终端预配对前的业务速率的损失始终不在所述第一待匹配用户终端的损 失容忍量范围内时, 所述第一待匹配用户终端不参与 MU-MIM0配对处理。
本发明实施例提供一种数据传输的方法和基站, 在第一终端组中选一个 第一待匹配用户终端, 并在第二终端组中选 N-1 个第二待匹配用户终端; 获 取预配对后的业务速率; 然后判断所述第一待匹配用户终端的所述预配对后 的业务速率相对于预配对前的业务速率的损失是否在损失容忍量的范围内; 当所述第一待匹配用户终端的所述预配对后的业务速率相对于预配对前的业 务速率的损失在所述损失容忍量的范围内时, 判断所述第一待匹配用户终端 与所述第二待匹配用户终端配对组成所述多天线终端组后的业务总速率是否 高于所述第一待匹配用户终端的预配对前的业务速率; 当所述第一待匹配用 户终端与所述第二待匹配用户终端配对组成多天线终端组后的业务总速率高 于所述第一待匹配用户终端的预配对前的业务速率时, 所述第一待匹配用户 终端与所述第二待匹配用户终端配对组成多天线终端组, 以便基站与所述多 天线终端组进行数据传输。 通过上述方案, 区分用户终端的业务要求, 对用 户终端进行配对, 保证用户终端单位时间的传输量, 提高系统吞吐量。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实 施例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面 描述中的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明实施例 1中一种数据传输的方法的流程图;
图 2为本发明实施例 2中一种数据传输的方法的流程图;
图 3为本发明实施例 3中动态维护损失容忍量的方法的流程图; 图 4为本发明实施例 3中一种数据传输的方法的流程图;
图 5为本发明实施例 4中一种基站的框图;
图 6为本发明实施例 4中一种基站的框图;
图 7为本发明实施例 4中损失容忍量设置单元的框图;
图 8为本发明实施例 4中一种基站的示意图。 具体实施方式
下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进行 清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而 不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有做 出创造性劳动前提下所获得的所有其他实施例 , 都属于本发明保护的范围。
本发明的技术方案, 可以应用于各种通信系统, 例如: 全球移动通信系 统(GSM, Globa l Sys tem for Mobi le Communica t ions ) ,码分多址接入(CDMA, Code Division Multiple Access )系统, 宽带码分多址接入( WCDMA, Wideband Code Division Multiple Access )系统,长期演进( LTE, Long Term Evolution ) 系统等。
用户终端 (UT, User Terminal ) 也可称之为用户设备 ( UE, User Equipment )、移动终端(MT, Mobile Terminal )、移动台(MS, Mobile Station ) 等, 可以经无线接入网 (例如, RAN, Radio Access Network )与一个或多个 核心网进行通信。
基站,可以是 GSM或 CDMA中的基站(BTS, Base Transceiver Station) , 也可以是 WCDMA中的基站(称为 Node B ) , 还可以是 LTE中的演进型基站(称 为 eNB或 e_NodeB, evolutional NodeB ) 。 另外, 一个基站可能支持 /管理一 个或多个小区 (cell ) , 用户终端需要和网络通信时, 它将选择一个小区发 起网络接入。
GBR 业务是实际传输速率必须高于规定传输速率的业务, 否则会出现业 务质量不能满足客户需求的现象, 实时通话业务是典型的 GBR 业务, 假如所 述业务的规定传输速率是 100kb/s (kilobyte/second,千字节 /秒), 实际传输 速率是 80kb/s, 则在通话过程中, 用户可能只能听到断断续续的声音。 另外, 从 MU-MIM0技术的特点可知, 需要首先对传输数据的天线进行配对, 组成具 有若干天线的天线组后, 再传输数据。 在实际应用中, 将天线进行配对的过 程就相当于是对用户终端进行配对的过程, 本发明实施例中所说的配对处理 不限于两个用户, 可以泛指多个用户。 具有若干天线的天线组就相当于具有 若干用户终端的终端组, 为便于描述, 我们把这样的终端组称作多天线终端 组。
实施例 1:
本发明的一个实施例提供一种数据传输的方法, 如图 1所示, 包括如下 步骤:
101、在第一终端组中选一个第一待匹配用户终端, 并在第二终端组中选 N-1个第二待匹配用户终端; 其中, 所述第一待匹配用户终端为第一终端组中 开启保证比特率 GBR业务的用户终端。
第一终端组中的用户终端为已调度用户终端, 第二终端组中的用户终端 为未调度用户终端。 已调度用户终端即已经分配信道的用户终端, N为系统允 许配对的用户终端的总数, 且大于或等于 2。
102、获取预配对后的业务速率。 所述预配对后的业务速率包括第一待匹 配用户终端预配对后的业务速率和第一待匹配用户终端与所述 N-1 个第二待 匹配用户终端配对组成所述多天线终端组后的业务总速率。
103、相对所述第一待匹配用户终端预配对前的业务速率, 判断所述第一 待匹配用户终端预配对后的业务速率的损失是否在所述第一待匹配用户终端 预设的损失容忍量范围内, 即判断所述第一待匹配用户终端预配对后的业务 速率的损失是否小于所述第一待匹配用户终端的损失容忍量。
104、当所述第一待匹配用户终端的所述预配对后的业务速率相对于配对 前的业务速率的损失在所述损失容忍量的范围内时, 判断所述第一待匹配用 户终端与所述 N-1 个第二待匹配用户终端配对组成所述多天线终端组后的业 务总速率高于所述第一待匹配用户终端的预配对前的业务速率。
105、所述第一待匹配用户终端与所述 N-1个第二待匹配用户终端配对组 成所述多天线终端组后的业务总速率高于所述第一待匹配用户终端的预配对 前的业务速率, 确定所述第一待匹配用户终端与所述 N-1 个第二待匹配用户 终端配对组成多天线终端组。
106、 进行所述多天线终端组的数据传输。
本发明实施例提供一种数据传输的方法, 在第一终端组中选一个第一待 匹配用户终端, 并在第二终端组中选 N-1 个第二待匹配用户终端; 获取预配 对后的业务速率; 然后判断所述第一待匹配用户终端的所述预配对后的业务 速率相对于预配对前的业务速率的损失是否在损失容忍量的范围内; 当所述 第一待匹配用户终端的所述预配对后的业务速率相对于配对前的业务速率的 损失在所述损失容忍量的范围内时, 判断所述第一待匹配用户终端与所述第 二待匹配用户终端配对组成所述多天线终端组后的业务总速率是否高于所述 第一待匹配用户终端的预配对前的业务速率; 当所述第一待匹配用户终端与 所述第二待匹配用户终端配对组成多天线终端组后的业务总速率高于所述第 一待匹配用户终端的预配对前的业务速率时, 所述第一待匹配用户终端与所 述第二待匹配用户终端配对组成多天线终端组, 以便基站与所述多天线终端 组进行数据传输。 通过上述方案, 区分用户终端的业务要求, 对用户终端进 行配对, 保证用户终端单位时间的传输量, 提高系统吞吐量。
实施例 2
本发明的一个实施例提供一种数据传输的方法, 如图 2所示, 包括如下 步骤:
201、为每个所述开启保证比特率 GBR业务的用户终端分别预先设置一个 固定的损失容忍量。
系统可以根据实际情况将每个开启保证比特率 GBR业务的用户终端的损 失容忍量设置为一个固定值, 实际情况可以是用户终端开启的 GBR (Guaranteed Bi t Ra te,保证比特率)业务比较单一的情况, 如某一地区的 用户终端开启的 GBR业务均为实时通话业务。
202、在第一终端组中选一个第一待匹配用户终端, 并在第二终端组中选 N-1个第二待匹配用户终端。
其中, 所述第一待匹配用户终端为第一终端组中开启 GBR (guaranteed bi t ra te,保证比特率)业务的用户终端, 所述第一终端组为已调度用户终端 的集合, 所述第二待匹配用户终端为未调度用户终端; 所述第二终端组为未 调度用户终端的集合; N为系统允许配对的用户终端的总数,且大于或等于 2。
MU-MIM0技术中,匹配是实现所述技术的重要步骤。一般情况下, MU-MIM0 系统允许多天线终端组中的最大用户数为整数 Ν, Ν大于或等于 2。在第一终端 组中选定第一待匹配用户终端后, 按照系统要求, 需要为第一待匹配用户终 端选取 N-1个第二待匹配用户终端。 为便于表述, 以 Ν=2为例, 具体选择 1 个第二待匹配用户终端的方法可以是: 从第二终端组中选取一个第二待匹配 用户终端, 经判断符合配对要求, 则第一待匹配用户终端与所述第二待匹配 用户终端可以组成多天线终端组。 需要指出的是, 在 Ν>2 时, 需从第二终端 组中选取 N- 1 个第二待匹配用户终端。 本发明实施例对第一待匹配用户终端 和第二待匹配用户终端选择方法不做具体限定, 既可以随机选取, 也可以按 照用户终端在终端组的顺序依次选取。
203、 获取预配对后的业务速率。
根据先验信息, 对步骤 202选择的 N个用户终端进行 MU-MIM0预配对, 计算第一待匹配用户终端预配对后的业务速率以及所述 N个用户终端预配对 后的总业务速率。
所述第一待匹配用户终端预配对后的业务速率是指所述第一待匹配用户 终端与所述 N-1 个第二待匹配用户终端组成多天线终端组后, 所述第一待匹 配用户终端的业务速率。
所述 N个用户终端预配对后的总业务速率是指所述第一待匹配用户终端 与所述 N-1个第二待匹配用户终端在预配对后的业务速率之和。
所述第一待匹配用户终端预配对后的业务速率以及所述 N个用户终端预 配对后的总业务速率都记录在基站提供的数据表中。
特殊情况下,Ν的取值为 2 , 此时的情况是, 一个第一待匹配用户终端与 一个第二待匹配用户终端进行预配对。 更普通的情况是, Ν的取值大于 2 , 即 2个以上的用户终端进行预配对。
系统提供的数据表上记录了计算得到的用户终端预配对前的业务速率和 预配对后的业务速率。 选定的第一待匹配用户终端预配对前的业务速率是所 述用户终端在进行 SU-MIM0 的传输速率。 实际应用场景中, 所述数据表存储 在基站中, 可以按照需要随时获取记录在数据表中的数据。
204、相对第一待匹配用户终端预配对前的业务速率, 判断所述第一待匹 配用户终端预配对后的业务速率的损失是否在所述第一待匹配用户终端的损 失容忍量范围内, 即判断所述第一待匹配用户终端预配对后的业务速率的损 失是否小于所述第一待匹配用户终端的损失容忍量。
所述预配对前的业务速率记录在基站提供的数据表中。
步骤 204中提到的预配对前的业务速率与预配对后的业务速率的损失应 做广义理解, 即通过一定的计算方法, 可以反映出配对前的业务速率与配对 后的业务速率大小关系的, 都属于本步骤中损失的概念, 比如: 配对前的业 务速率减去配对后的业务速率得到的差值; 配对前的业务速率除以配对后的 业务速率得到的商值; 配对前的业务速率减去配对后的业务速率得到的差值 与配对前的业务速率的比值。
205、当所述第一待匹配用户终端预配对后的业务速率的损失在所述损失 容忍量的范围内时, 再判断所述 N个用户终端预配对后的总业务速率是否高 于所述第一待匹配用户终端的预配对前的业务速率。
举例来说, 例 1 , 设第一待匹配用户终端预配对前的业务速率为 10000 比特 /秒; 第一待匹配用户终端预配对后的业务速率为 6200比特 /秒; 第二待 匹配用户终端预配对后的业务速率为 5200 比特 /秒。 假设根据系统运行情况 设置的损失容忍量为 0. 5 ,则所述第一待匹配用户终端预配对后的业务速率相 对配对前的业务速率的损失为 0. 16 ( [6200-5200] / 6200=0. 16) ,小于上述损失 容忍量 0. 5 ,即所述第一待匹配用户终端预配对后的业务速率相对配对前的业 务速率的损失在损失容忍量的范围内, 则再判断所述预配对用户的总业务速 率是否高于所述第一待匹配用户终端的预配对前的业务速率, 预配对后的总 业务速率为 6200+5200=11400比特 /秒, 大于所述第一待匹配用户终端预配对 前的业务速率: 1 0000比特 /秒。
需要说明的是, 当选择的第一待匹配用户终端的预配对后的业务速率始 终不在损失容忍量的范围内时, 不执行后续步骤 206 , 即所述第一待匹配用户 终端不进行 MU-MIM0配对。 也就是说, 第二终端组中不存在 N-1个第二待匹 配用户终端使所述第一待匹配用户终端与所述 N-1 个第二待匹配用户终端预 配对后的业务速率相对于所述第一待匹配用户终端预配对前的业务速率的损 失在步骤 201 设置的损失容忍量的范围内。 进一步的说就是, 在第二终端组 中不存在 N-1 个第二待匹配用户终端与所述第一待匹配用户终端组成多天线 终端组进行数据传输。
206、当所述 N个用户终端预配对后的总业务速率高于所述第一待匹配用 户终端的预配对前的业务速率, 则确定所述 N个用户终端组成多天线终端组, 进行 MU-MIM0配对, 以便基站与所述多天线终端组进行数据传输。 步骤 206中提到 N个用户终端预配对后的总业务速率高于所述第一待匹 配用户终端的预配对前的业务速率, 具体到例 1 中来, 即: 预配对后的总业 务速率 1 1400比特 /秒大于第一待匹配用户终端预配对前的业务速率 10000比 特 /秒。
例 2 , 为更加清楚的说明如何组成多线终端组, 我们再以 N=3为例进行 说明。 假设, 根据系统运行情况设置的损失容忍量为 0. 5 , 第一待匹配用户终 端, 1号第二待匹配用户终端, 2号第二待匹配用户终端进行 MU-MIM0预配对。 第一待匹配用户终端配预对前的业务速率为 10000比特 /秒; 第一待匹配用户 终端预配对后的业务速率为 6200比特 /秒; 1号第二待匹配用户终端预配对后 的业务速率为 3200比特 /秒, 2号第二待匹配用户终端预配对后的业务速率为 3600比特 /秒。则所述第一待匹配用户终端预配对后的业务速率相对配对前的 业务速率的损失为 0. 16 ( [ 10000-6200] / 10000=0. 38) , 小于上述损失容忍量 0. 5。 所述第一待匹配用户终端预配对后的业务速率相对配对前的业务速率的 损失在损失容忍量的范围内, 则再判断所述预配对用户的总业务速率是否高 于所述第一待匹配用户终端的预配对前的业务速率, 预配对后的总业务速率 为 1 3000 ( 6200+3200+3600 ) 比特 /秒, 大于第一待匹配用户终端预配对前的 业务速率, 10000 比特 /秒, 则第一待匹配用户终端, 1 号第二待匹配用户终 端, 2号第二待匹配用户终端满足组成多天线终端组的条件, 能够组成多天线 终端组, 确定这 3个用户终端进行 MU-MIM0配对。
本实施例提供一种数据传输的方法, 首先设置一个固定的损失容忍量, 然后在第一终端组中选一个第一待匹配用户终端, 在第二终端组中选 N-1 个 第二待匹配用户终端; 获取预配对后的业务速率; 接着判断所述第一待匹配 用户终端的所述预配对后的业务速率相对于配对前的业务速率的损失是否在 所述第一待匹配用户终端的损失容忍量的范围内; 当所述第一待匹配用户终 端的所述预配对后的业务速率相对于配对前的业务速率的损失在所述损失容 忍量的范围内时, 再判断所述第一待匹配用户终端与所述 N-1 个第二待匹配 用户终端配对组成所述多天线终端组后的总业务速率是否高于所述第一待匹 配用户终端预配对前的业务速率; 当所述总业务速率高于所述第一待匹配用 户终端预配对前的业务速率时, 所述第一待匹配用户终端与所述 N-1 个第二 待匹配用户终端配对组成多天线终端组, 进行 MU-MIM0 配对, 以便基站与所 述多天线终端组进行数据传输。 通过上述方案, 区分用户终端的业务要求, 对用户终端进行配对, 保证用户终端单位时间的传输量, 提高系统吞吐量。
实施例 3
本发明的一个实施例提供一种数据传输的方法。
根据 MU-MIM0的技术特点可知, 配对成功的多天线终端组可以提高系统 的吞吐量, 但需要以牺牲单个用户终端的单位时间的传输量作为代价。 开启 GBR业务的用户终端必须保证单位时间的数据传输量, 即业务速率, 因此多天 线终端组中的开启 GBR业务的用户终端的业务速率不能降低到 GBR业务的用 户终端必须保证的业务速率之下。 举例来说, 设某用户终端 A的 GBR业务必 须保证的速率为 1000比特 /秒, 若用户终端 A配对到多天线终端组后的业务 速率为 800比特 /秒, 则用户终端 A不能参与配对。 判断用户终端能否配对到 多天线终端组的参数是损失容忍量, 用户终端预配对后的业务速率损失在损 失容忍量的范围内时, 用户终端才可以进行配对。 本段所述的用户终端为实 施例 1和后续叙述中的第一待匹配用户终端。
在另一场景下, 当用户终端开启的 GBR业务不单一且会经常变更的情况 下, 则第一待匹配用户终端在不同的时间内会有不同的业务或在不同的时间 内会与不同的用户终端匹配。 例如, 第一待匹配用户终端在时间段 t l 至 t 2 内为实时通话业务(设必须要保证的业务速率为 1000比特 /秒), 在时间段 t 2 至 t 3内为视频通话业务(设必须要保证的业务速率为 2000比特 /秒)。 显然, 实时通话业务和视频通话业务都是 GBR业务, 但视频通话业务需要保证的业 务速率比实时通话业务的业务速率要高。 若损失容忍量为一预先设定的固定 值, 则会出现所述用户终端的业务速率低于必须要保证的业务速率的情况。 因此, 系统需要为每一个用户终端动态维护一个损失容忍量。
动态维护损失容忍量, 如图 3所示, 包括如下步骤:
301、 为每个开启 GBR业务的用户终端设置初始的损失容忍量。 302、 按照系统预设定的维护周期获取所述第一终端组中的每个开启 GBR 业务的用户终端的实际业务速率。
在实际应用中, 基站会为每一个包含 GBR业务的用户终端分别维护一个 损失容忍量, 其原因是在第二终端组中包含 GBR业务的终端, 可能在下一次 传输数据的过程中被基站选入第一终端组。 这样做可以减少配对程序, 节省 基站开支。
303、 从第一终端组开启 GBR业务的用户终端中任选其中一个用户终端。
304、 判断选取终端的实际业务速率是否小于对应的目标业务速率。 所述目标业务速率预先存储在基站中。
目标业务速率是每个业务的最低服务标准, 简单的说, 低于所述目标速 率则所述业务不能满足客户的需求。 在实际应用中, 实际业务速率低于目标 业务速率的现象可能是, 实时通话业务出现声音断断续续的现象, 或者上传 数据业务出现需要相当长的时间才能上传完毕的现象。
305、 当选取终端的实际业务速率小于所述目标业务速率时,按照第一预 定的变换值减少所述用户终端的损失容忍量,即所述用户终端的损失容忍量 减去所述第一预定的变换值。
306、 当选取终端的实际业务速率不小于所述目标业务速率时, 按照第二 预定的变换值增加所述用户终端的损失容忍量,即所述用户终端的损失容忍 量加上所述第二预定的变换值。
步骤 305和步骤 306可以以择一的方式存在, 也可以同时存在, 另夕卜, 对于第一终端组中每个开启 GBR业务的用户终端都需执行步骤 303至 306 ,以 便为第一终端组开启 GBR业务的所有用户终端都分别维护一个单独的损失容 忍量。 步骤 305 中所述的第一预定的变换值可以与步骤 306 中所述的第二预 定的变换值取同一值, 也可以取不同值。 在实际运用中, 第一预定的变换值 取较大值, 第二预定的变换值取较小值时, 在数据传输过程中可以取得较好 的效果。
本实施例提供的动态维护损失容忍量的方法可以按照系统预设定的周期 进行维护, 也可以由某种事件触发, 比如人工触发等。 基站保存动态维护的 损失容忍量, 在进行 MU-MIM0配对过程中, 可以根据动态维护的损失容忍量, 为开启保证比特率 GBR业务的用户终端设置损失容忍量。
本实施例提供一种动态维护损失容忍量的方法, 按照系统预设定的维护 周期获取所述第一终端组中的每个开启 GBR业务的用户终端的实际业务速率, 当选取终端的实际业务速率小于所述目标业务速率时, 按照预定的变换值减 少所述终端的损失容忍量, 当选取终端的实际业务速率不小于所述目标业务 速率时, 按照变换值增加所述终端的损失容忍量。 通过上述方案, 避免用户 终端参与配对后传输速率低于必须保证的传输速率的情况发生, 提高用户终 端参与配对操作的准确性,
另一方面, 在动态维护损失容忍量的前提下,提供一种数据传输的方法, 如图 4所示, 包括如下步骤:
401、 为每个开启 GBR业务的用户终端设置损失容忍量。
步骤 401所述的损失容忍量可以根据不同情况进行设置, 既可以设置为 一个固定的损失容忍量, 也可以动态维护损失容忍量。 在本实施例中该步骤 为按照系统预设定的维护周期动态维护损失容忍量。
在未对损失容忍量更改之前,所有用户终端的损失容忍量可以为同一值。 在本实施例的后续步骤中, 基站会为第一终端组中每个包含 GBR业务的用户 终端分别维护一个损失容忍量。 另外, 损失容忍量可以是一个数值与另一个 数值之间的区间, 例如大于或等于 0并且小于或等于 1的区间。
402、 在预设的检测周期内, 确定向所述基站发送业务请求的用户终端。
403、按照预定义的规则将所述发送业务请求的用户终端分别划分到所述 第一终端组和所述第二终端组。
划分第一终端组和第二终端组的具体方案可以是, 首先从所有的用户终 端 (在检测周期内, 基站接收到的向基站发送业务请求的终端) 中, 随机选 取规定数量的终端, 同时为这些终端分别分配用于发送数据的信道, 并将这 些终端列为第一终端组, 余下的未分配用于发送数据的信道的终端则列为第 二终端组。
404、在第一终端组中选一个第一待匹配用户终端, 并在第二终端组中选 N-l个第二待匹配用户终端; 其中, 所述第一待匹配用户终端为第一终端组中 开启 GBR业务的用户终端。
N为系统允许配对的用户终端的总数, 且大于或等于 2 , 即允许一个第一 待匹配用户终端和 N-1个第二待匹配用户终端进行 MU-MIM0配对。 405、 获 取预配对后的业务速率。
根据先验信息, 对步骤 404选择的 N个用户终端进行 MU-MIM0预配对, 计算第一待匹配用户终端预配对后的业务速率以及所述 N个用户终端预配对 后的总业务速率。
所述第一待匹配用户终端预配对后的业务速率是指所述第一待匹配用户 终端与所述 N-1 个第二待匹配用户终端组成多天线终端组后, 所述第一待匹 配用户终端的业务速率。
所述 N个用户终端预配对后的总业务速率是指所述第一待匹配用户终端 与所述 N-1个第二待匹配用户终端在预配对后的业务速率之和。
所述第一待匹配用户终端预配对后的业务速率以及所述 N个用户终端预 配对后的总业务速率都记录在基站提供的数据表中。 所述数据表通过相关算 法和试验得到, 并记录在由 MU-MIM0 系统提供的控制协议中。 配对后的业务 速率与 MU-MIM0系统允许的多天线终端组中最大用户终端数等参数相关。
406、相比所述第一待匹配用户终端预配对前的业务速率, 判断所述第一 待匹配用户终端预配对后的业务速率的损失是否在所述第一待匹配用户终端 的损失容忍量范围内,即判断所述第一待匹配用户终端预配对后的业务速率 的损失是否 d、于所述第一待匹配用户终端的损失容忍量。
本实施例是基于系统预设定的维护周期动态维护损失容忍量, 因此所述 第一待匹配用户终端的损失容忍量也根据系统预设定的维护周期动态变化。 当所述第一待匹配用户终端的所述预配对后的业务速率的损失在所述第一待 匹配用户终端对应的损失容忍量的范围内时,执行步骤 408 ; 当所述第一待匹 配用户终端预配对后的业务速率的损失不在所述第一待匹配用户终端对应的 损失容忍量的范围内时, 执行步骤 407。
所述预配对前的业务速率同预配对后的业务速率一样都记录在 MU-MIM0 系统控制协议提供的数据表中。 所述数据表预先存储在基站中。 配对前的业 务速率与 MU-MIM0系统允许的多天线终端组中最大用户终端数等参数相关。
现举例说明步骤 406中的判断过程:
例 3 , 第一待匹配用户终端预配对后的业务速率相对配对前的业务速率 的损失可以定义为所述第一待匹配用户终端预配对前的业务速率与预配对后 的业务速率的差值与预配对前的业务速率之比。设损失容忍量为 0. 5 , 则损失 容忍量的范围是大于 0小于 0. 5的区间, 若所述第一待匹配用户终端预配对 前的业务速率是 2500比特 /秒, 预配对后的业务速率 2000比特 /秒。 则所述 第一待匹配用户终端的预配对后的业务速率相对配对前的业务速率的损失为 0. 2 ( [2500-2000] /2500=0. 2) , 小于上述损失容忍量, 即在损失容忍量的范围 内。
407、 在所述第二终端组中另选 N-1个第二待匹配用户终端。
在另选 N-1个第二待匹配用户终端后, 返回步骤 405获取第一待匹配用 户终端与另选的 N-1 个第二待匹配用户终端预配对后的业务速率, 然后继续 执行步骤 406。当满足步骤 406中的判断条件时,则继续执行步骤 408的判断。 如果第二终端组中的所有用户终端均不能满足步骤 406 的判断条件, 则所述 第一待匹配用户终端 MU-MIM0 配对流程结束, 即基站不能从第二终端组中选 出第二待匹配用户终端与第一待匹配用户终端组成多天线终端组。
需说明的是, 如果第一待匹配用户终端预配对后的业务速率损失始终不 在所述损失容忍量的范围内, 则无法与第二终端组的第二待匹配用户终端组 成多天线终端组进行数据传输, 即第一待匹配用户终端不参与 MU-MIM0 配对 处理, 只能使用单独的信道, 进行单独的数据传输。
若第一待匹配用户终端预配对后的业务速率损失在所述损失容忍量的范 围内, 则执行步骤 408。
这里需指出的是, 满足步骤 406的判断条件, 并不必然会配对成功, 还 要根据后续流程继续进行判断。
408、判断第一待匹配用户终端与所述 N-1个第二待匹配用户终端配对组 成多天线终端组后的业务总速率是否高于第一待匹配用户终端的配对前的业 务速率。
当第一待匹配用户终端与所述 N-1个第二待匹配用户终端配对组成多天 线终端组后的业务总速率高于第一待匹配用户终端的配对前的业务速率时, 执行步骤 409 , 否则执行步骤 407。
409、将第一待匹配用户终端与 N-1个第二待匹配用户终端配对组成多天 线终端组, 以便基站与所述多天线终端组进行数据传输。
步骤 408的判断条件, 是为了保证配对组成的多天线终端组的业务总速 率要高于第一待匹配用户终端的配对前的业务速率。 即只有在满足步骤 408 的判断条件后才能够组成多天线终端组, 使终端以多天线终端组为单位一起 实现与基站间的数据发送和接收。 若不满足步骤 408 的判断条件, 则重新回 到步骤 407 , 另选 N-1个第二待匹配用户终端, 然后转向步骤 405 , 并执行后 续步骤 406和步骤 408的判断动作。
以上步骤 404到步骤 409阐述了一个第一待匹配用户终端如何选择 N-1 个第二待匹配用户终端并最终形成多天线终端组的过程。 当第一待匹配用户 终端与第二待匹配用户终端完成配对, 形成一个多天线终端组后, 可以从第 一终端组中另选一个具有 GBR业务的第一待匹配用户终端,重复执行步骤 404 至 409 , 以便继续形成多天线终端组。 需要注意的是, 已经参与过配对操作的 用户终端在重复执行步骤 404至 409的过程中不再参与配对, 所述参与过配 对操作的用户终端包括, 已经被选中参与配对的用户终端和不满足配对条件 的用户终端。
另外,第一终端组中可能既有包含 GBR业务的用户终端,也有不包含 GBR 业务的用户终端。 对于不包含 GBR业务的用户终端, 仅需从第二终端组中选 取第二待匹配用户终端后, 直接参照本实施例的步骤 408至 409执行即可。
实际场景 N的具体取值以基站的支持能力来确定。
为更详细的叙述步骤 404至 409 , 现举例说明:
例 4 , 设在预设的周期内, 基站共接受到来自用户终端 A、 B、 C、 D、 E、 F、 G、 H、 I的业务请求, 其中用户终端 A、 B的业务请求中包含 GBR业务, 其 余终端的业务请求中不包含 GBR业务, 系统允许的多天线终端组中的最大用 户数为 3。 基站将用户终端 、 B、 C划分为第一终端组, 终端 D、 E、 F、 G、 H、 I为第二终端组(当然, 实际情况中也可能是其他的分组结果, 如 、 B、 C和 D划分为第一终端组, E、 F、 G、 H和 I划分为第二终端组, 本发明实施例在 此不再赘述 )。
假设先将用户终端 A选为第一待匹配用户终端, 并从第二终端组任选两 个作为与用户终端 A对应的第二待匹配用户终端。 如果用户终端 A与任何两 个第二待匹配用户终端组成多天线终端组时, 用户终端 A 的所述预配对后的 业务速率相对于配对前的业务速率的损失都不在终端 A所对应的损失容忍量 的范围内, 则用户终端 A不再参与 MU-MIM0配对; 进而判断终端 B, 由于系统 允许的多天线终端组中的最大用户数为 3 ,故将用户终端 B和在第二终端组中 任选的两个用户终端 (这里 4叚设为终端 D和 E )进行预配对。 4叚设用户终端 B 的所述预配对后的业务速率相对于预配对前的业务速率的损失在对应的损失 容忍量的范围内, 故继续进行判断, 经判断, 用户终端^ D和 E的业务总速 率高于用户终端 B的预配对前的业务速率, 故符合 MU-MIM0配对要求, 则用 户终端 B对应的多天线终端组的成员为用户终端 B、 D和 E;然后, 系统将用户 终端 C与在第二终端组中任选的两个用户终端 (这里 H没为用户终端 F和 G ) 进行 MU-MIM0配对, 由于用户终端 D和 E已经和用户终端 B进行 MU-MIM0配 对, 故不再参与用户终端 C的 MU-MIM0配对。 由于用户终端 C不包含 GBR业 务, 不用进行损失容忍量判断, 经判断, 用户终端 F和 G的业务总速率低 于终端 C 的配对前的业务速率, 故不符合要求, 继续从第二终端组中选择剩 余的用户终端 H和 I与终端 C配对, 经判断, 用户终端 C、 H和 I的业务总速 率高于用户终端 C的配对前的业务速率, 故符合要求, 则用户终端 C对应的 多天线终端组的成员为用户终端 C、 H和 I。
由于第一终端组中的用户终端全部参与配对, 故配对结束, 配对结果是 用户终端 B对应的多天线终端组的成员为用户终端 B、 D和 E, 用户终端 C对 应的多天线终端组为用户终端 C、 H和 I。
在实际应用中, 一个用户终端可能同时包含几个业务, 只要其中一个业 务是 GBR业务, 就需要按照本实施例中描述的步骤进行判断。 本实施例提供一种数据传输的方法, 第一步, 动态维护一个损失容忍量, 首先获取所述第一终端组中的开启 GBR业务的用户终端的实际业务速率, 然 后从第一终端组开启 GBR业务的用户终端中任选其中一个用户终端, 判断选 取终端的实际业务速率是否小于对应的目标业务速率; 当选取终端的实际业 务速率小于所述目标业务速率时, 按照预定的变换值减少所述终端的损失容 忍量。 当选取终端的实际业务速率不小于所述目标业务速率时, 按照预定的 变换值增加所述终端的损失容忍量。 第二步, 在第一终端组中选一个第一待 匹配用户终端, 并在第二终端组中选 N-1 个第二待匹配用户终端; 获取预配 对后的业务速率; 然后判断第一待匹配用户终端的所述预配对后的业务速率 相对于所述预配对前的业务速率的损失是否在损失容忍量的范围内; 当所述 第一待匹配用户终端的所述预配对后的业务速率相对于所述配对前的业务速 率的损失在所述损失容忍量的范围内时, 再判断所述第一待匹配用户终端与 所述第二待匹配用户终端配对组成所述多天线终端组后的业务总速率是否高 于所述第一待匹配用户终端的预配对前的业务速率; 当所述第一待匹配用户 终端与所述第二待匹配用户终端配对组成多天线终端组后的业务总速率高于 所述第一待匹配用户终端的预配对前的业务速率时, 所述第一待匹配用户终 端与所述第二待匹配用户终端配对组成多天线终端组, 最后, 基站与所述多 天线终端组进行数据传输。 通过上述方案, 动态维护一个损失容忍量, 避免 用户终端参与配对后传输速率低于必须保证的传输速率的情况发生, 提高用 户终端参与配对操作的准确性且区分用户终端的业务要求, 对用户终端进行 配对, 保证用户终端单位时间的传输量, 提高系统吞吐量。
实施例 4
本发明的一个实施例提供一种基站, 如图 5所示, 所述基站包括: 选择单元 51 , 用于在第一终端组中选一个第一待匹配用户终端, 并在第 二终端组中选 N-1 个第二待匹配用户终端; 其中, 所述第一待匹配用户终端 为所述第一终端组中开启保证比特率 GBR业务的用户终端; N为系统允许配对 的用户终端的总数, 且大于或等于 2。
预配对业务速率获取单元 52 , 用于获取预配对后的业务速率。 所述预配 对后的业务速率包括第一待匹配用户终端预配对后的业务速率和第一待匹配 用户终端与所述 N-1 个第二待匹配用户终端配对组成所述多天线终端组后的 业务总速率。
第一判断单元 53 , 用于判断所述第一待匹配用户终端的所述预配对后的 业务速率相对于配对前的业务速率的损失是否在对应的损失容忍量的范围 内, 即判断所述第一待匹配用户终端预配对后的业务速率的损失是否小于所 述第一待匹配用户终端的损失容忍量。
第二判断单元 54 , 用于当所述第一判断单元 53判断出所述第一待匹配 用户终端的所述预配对后的业务速率的损失在所述损失容忍量的范围内时, 判断所述第一待匹配用户终端与所述 N-1 个第二待匹配用户终端预配对组成 所述多天线终端组后的业务总速率是否高于所述第一待匹配用户终端的配对 前的业务速率。
配对单元 55 , 用于当所述第二判断单元 54判断出所述业务总速率高于 所述第一待匹配用户终端的配对前的业务速率时, 所述第一待匹配用户终端 与所述 N-1个第二待匹配用户终端配对组成多天线终端组。
数据传输单元 56 , 用于进行所述多天线终端组的数据传输。
进一步的, 如图 6所示, 所述基站还包括: 损失容忍量设置单元 57 , 还 用于为每个所述开启保证比特率 GBR业务的用户终端分别预先设置一个固定 的损失容忍量。
进一步的, 如图 7所示, 所述损失容忍量设置单元 57 , 进一步还包括: 实际业务速率获取子单元 571 , 用于获取所述第一终端组中的每个所述 开启 GBR业务的用户终端的实际业务速率。
实际业务速率判断子单元 572 , 用于判断每个所述开启 GBR业务的用户 终端的实际业务速率是否小于所述开启 GBR业务的用户终端各自对应的目标 业务速率。
损失容忍量减少子单元 573 , 当所述开启 GBR业务的用户终端的实际业 务速率小于所述目标业务速率时, 按照第一预定的变换值减少所述实际业务 速率小于所述目标业务速率的所述开启 GBR业务的用户终端的所述损失容忍 量, 即将所述用户终端的损失容忍量减去所述第一预定的变换值。 和\或 损失容忍量增加子单元 574 , 用于当所述开启 GBR业务的用户终端的实 际业务速率不小于所述目标业务速率时, 按照第二预定的变换值增加所述实 际业务速率不小于所述目标业务速率的所述开启 GBR业务的用户终端的所述 损失容忍量, 即将所述用户终端的损失容忍量加上所述第二预定的变换值。
进一步的, 所述第一预定的变换值与所述第二预定的变换值为同一值; 或所述第一预定的变换值与所述第二预定的变换值为不同值。
进一步的, 所述配对单元 55 , 还用于当所述第一待匹配用户终端的所述 预配对后的业务速率的损失始终不在所述第一待匹配用户终端的损失容忍量 范围内时, 使所述第一待匹配用户终端不参与 MU-MIM0配对处理。
需要说明的是,第一终端组中供所述选择单元 51选择的用户终端为已调 度用户终端; 第二终端组中供所述选择单元 51选择的用户终端为未调度用户 终端。
本实施例提供一种基站, 在第一终端组中选一个第一待匹配用户终端, 并在第二终端组中选 N-1个第二待匹配用户终端; 获取预配对后的业务速率; 然后所述第一待匹配用户终端的所述预配对后的业务速率相对于所述配对前 的业务速率的损失是否在对应的损失容忍量的范围内; 当所述第一待匹配用 户终端的所述预配对后的业务速率相对于所述配对前的业务速率的损失在所 述损失容忍量的范围内时, 判断所述第一待匹配用户终端与所述 N-1 个第二 待匹配用户终端配对组成所述多天线终端组后的业务总速率是否高于所述第 一待匹配用户终端的预配对前的业务速率; 当所述第一待匹配用户终端与所 述 N-1 个第二待匹配用户终端配对组成多天线终端组后的业务总速率高于所 述第一待匹配用户终端的预配对前的业务速率时, 所述第一待匹配用户终端 与所述 N-1 个第二待匹配用户终端配对组成多天线终端组, 以便基站与所述 多天线终端组进行数据传输。 通过上述方案, 区分用户终端的业务要求, 保 证用户终端单位时间的传输量, 提高系统吞吐量。
进一步的, 如图 8所示, 本实施例还提供一种基站, 包括: 存储器 61 , 用于存储调度指令。
处理器 62 , 用于根据所述存储器 61存储的所述调度指令, 为开启保证 比特率 GBR业务的用户终端设置损失容忍量; 在第一终端组中选一个第一待 匹配用户终端, 并在第二终端组中选 N-1 个第二待匹配用户终端; 其中, 所 述第一待匹配用户终端为所述第一终端组中所述开启保证比特率 GBR业务的 用户终端, N为系统允许配对的用户终端的总数, 且大于或等于 2 ; 获取预配 对后的业务速率; 所述预配对后的业务速率包括所述第一待匹配用户终端预 配对后的业务速率和所述第一待匹配用户终端与所述 N-1 个第二待匹配用户 终端预配对组成多天线终端组后的业务总速率; 相对所述第一待匹配用户终 端预配对前的业务速率, 判断所述第一待匹配用户终端预配对后的业务速率 的损失是否在所述第一待匹配用户终端的所述损失容忍量范围内, 即判断所 述第一待匹配用户终端预配对后的业务速率的损失是否小于所述第一待匹配 用户终端的损失容忍量; 当所述第一待匹配用户终端的所述预配对后的业务 速率相对于配对前的业务速率的损失在所述损失容忍量的范围内时, 如果所 述第一待匹配用户终端与所述 N-1 个第二待匹配用户终端预配对组成所述多 天线终端组后的业务总速率高于所述第一待匹配用户终端预配对前的业务速 率, 则确定所述第一待匹配用户终端与所述 N-1 个第二待匹配用户终端配对 组成多天线终端组。
收发器 63 , 用于进行所述多天线终端组的数据传输。
进一步的, 所述处理器 62 , 还用于为每个所述开启保证比特率 GBR业务 的用户终端分别预先设置一个固定的损失容忍量。
进一步的, 所述处理器 62 , 还用于获取所述第一终端组中的每个所述开 启 GBR业务的用户终端的实际业务速率; 判断每个所述开启 GBR业务的用户 终端的实际业务速率是否小于所述开启 GBR业务的用户终端各自对应的目标 业务速率; 当所述开启 GBR业务的用户终端的实际业务速率小于所述目标业 务速率时, 按照第一预定的变换值减少所述实际业务速率小于所述目标业务 速率的所述开启 GBR业务的用户终端的所述损失容忍量, 即将所述用户终端 的损失容忍量减去所述第一预定的变换值; 和\或当所述开启 GBR业务的用户 终端的实际业务速率不小于所述目标业务速率时, 按照第二预定的变换值增 加所述实际业务速率不小于所述目标业务速率的所述开启 GBR 业务的用户终 端的所述损失容忍量, 即将所述用户终端的损失容忍量加上所述第二预定的 变换值。
需要说明的是, 第一终端组中供所述处理器选择的用户终端为已调度用 户终端; 第二终端组中供所述处理器选择的用户终端为未调度用户终端。
进一步的,所述处理器 62还用于当所述第一待匹配用户终端预配对后的 业务速率相对于所述第一待匹配用户终端预配对前的业务速率的损失始终不 在所述第一待匹配用户终端的损失容忍量范围内时, 所述第一待匹配用户终 端不参与 MU- MIM0配对处理。
本实施例提供一种基站, 在第一终端组中选一个第一待匹配用户终端, 并在第二终端组中选 N-1个第二待匹配用户终端; 获取预配对后的业务速率; 然后判断所述第一待匹配用户终端的所述预配对后的业务速率相对于预配对 前的业务速率的损失是否在损失容忍量的范围内; 当所述第一待匹配用户终 端的所述预配对后的业务速率相对于预配对前的业务速率的损失在所述损失 容忍量的范围内时, 再判断所述第一待匹配用户终端与所述第二待匹配用户 终端配对组成所述多天线终端组后的业务总速率是否高于所述第一待匹配用 户终端的配对前得业务速率; 当所述第一待匹配用户终端与所述第二待匹配 用户终端配对组成多天线终端组后的业务总速率高于所述第一待匹配用户终 端预配对前的业务速率时, 所述第一待匹配用户终端与所述第二待匹配用户 终端配对组成多天线终端组, 以便基站与所述多天线终端组进行数据传输。 通过上述方案, 区分用户终端的业务要求, 对用户终端进行配对, 提高基站 的数据吞吐量。
通过以上的实施方式的描述, 所属领域的技术人员可以清楚地了解到本 发明可借助软件加必需的通用硬件的方式来实现, 当然也可以通过硬件, 但 很多情况下前者是更佳的实施方式。 基于这样的理解, 本发明的技术方案本 质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来, 所 述计算机软件产品存储在可读取的存储介质中, 如计算机的软盘, 硬盘或光 盘等, 包括若干指令用以使得一台计算机设备(可以是个人计算机, 服务器, 或者网络设备等)执行本发明各个实施例所述的方法。
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局限 于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可轻易 想到的变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的保 护范围应以所述权利要求的保护范围为准。

Claims

权 利 要求 书
1、 一种数据传输的方法, 其特征在于, 包括:
在第一终端组中选一个第一待匹配用户终端, 并在第二终端组中选 N-1个 第二待匹配用户终端; 其中, 所述第一待匹配用户终端为所述第一终端组中所 述开启保证比特率 GBR业务的用户终端, N为系统允许配对的用户终端的总数, 且大于或等于 2 ;
获取预配对后的业务速率; 所述预配对后的业务速率包括所述第一待匹配 用户终端预配对后的业务速率和所述第一待匹配用户终端与所述 N-1 个第二待 匹配用户终端预配对组成多天线终端组后的业务总速率;
相对所述第一待匹配用户终端预配对前的业务速率, 判断所述第一待匹配 用户终端预配对后的业务速率的损失是否在所述第一待匹配用户终端的预设的 损失容忍量范围内;
当所述第一待匹配用户终端的所述预配对后的业务速率的损失在所述损失 容忍量的范围内时, 如果所述业务总速率高于所述第一待匹配用户终端预配对 前的业务速率, 则确定所述第一待匹配用户终端与所述 N-1 个第二待匹配用户 终端配对组成多天线终端组;
进行所述多天线终端组的数据传输。
2、 根据权利要求 1所述的方法, 其特征在于, 所述预设的损失容忍量通过 如下方式进行设置:
为每个所述开启保证比特率 GBR业务的用户终端分别预先设置一个固定的 损失容忍量。
3、 根据权利要求 1所述的方法, 其特征在于, 所述预设的损失容忍量通过 如下方式进行设置:
获取所述第一终端组中的每个所述开启 GBR业务的用户终端的实际业务速 率;
判断每个所述开启 GBR业务的用户终端的实际业务速率是否小于所述开启 GBR业务的用户终端各自对应的目标业务速率;
当所述开启 GBR 业务的用户终端的实际业务速率小于所述目标业务速率 时, 按照第一预定的变换值减少所述实际业务速率小于所述目标业务速率的所 述开启 GBR业务的用户终端的所述损失容忍量; 和\或
当所述开启 GBR业务的用户终端的实际业务速率不小于所述目标业务速率 时, 按照第二预定的变换值增加所述实际业务速率不小于所述目标业务速率的 所述开启 GBR业务的用户终端的所述损失容忍量。
4、 根据权利要求 3所述的方法, 其特征在于, 所述第一预定的变换值与所 述第二预定的变换值为同一值; 或
所述第一预定的变换值与所述第二预定的变换值为不同值。
5、 根据权利要求 1所述的方法, 其特征在于, 所述相对所述第一待匹配用 户终端预配对前的业务速率, 判断所述第一待匹配用户终端预配对后的业务速 率的损失是否在所述第一待匹配用户终端的损失容忍量范围内, 进一步包括: 当所述第一待匹配用户终端预配对后的业务速率相对于所述第一待匹配用 户终端预配对前的业务速率的损失始终不在所述第一待匹配用户终端的损失容 忍量范围内时, 所述第一待匹配用户终端不参与 MU-MIM0配对处理。
6、 根据权利要求 1、 2、 3、 4或 5所述的方法, 其特征在于, 所述第一终 端组为已调度用户终端的集合, 所述第二待匹配用户终端为未调度用户终端; 所述第二终端组为所述未调度用户终端的集合。
7、 一种基站, 其特征在于, 包括:
选择单元, 用于在第一终端组中选一个第一待匹配用户终端, 并在第二终 端组中选 N-1 个第二待匹配用户终端; 其中, 所述第一待匹配用户终端为第一 终端组中开启保证比特率 GBR业务的用户终端, Ν为系统允许配对的用户终端的 总数, 且大于或等于 2;
预配对业务速率获取单元, 用于获取预配对后的业务速率; 所述预配对后 的业务速率包括第一待匹配用户终端预配对后的业务速率和第一待匹配用户终 端与所述 N-1 个第二待匹配用户终端配对组成所述多天线终端组后的业务总速 率;
第一判断单元, 用于判断所述第一待匹配用户终端的所述预配对后的业务 速率相对于配对前的业务速率的损失是否在所述第一待匹配用户终端的预设的 损失容忍量范围内;
第二判断单元, 用于当所述第一判断单元判断出所述第一待匹配用户终端 的所述预配对后的业务速率的损失在所述损失容忍量的范围内时, 判断所述第 一待匹配用户终端与所述 N-1 个第二待匹配用户终端预配对组成所述多天线终 端组后的业务总速率是否高于所述第一待匹配用户终端的配对前的业务速率; 配对单元, 用于当所述第二判断单元判断出所述业务总速率高于所述第一 待匹配用户终端的配对前的业务速率时, 所述第一待匹配用户终端与所述 N-1 个第二待匹配用户终端配对组成多天线终端组;
数据传输单元, 用于进行所述多天线终端组的数据传输。
8、 根据权利要求 7所述的基站, 其特征在于, 所述基站还包括:
损失容忍量设置单元, 用于为每个所述开启保证比特率 GBR业务的用户终 端分别预先设置一个固定的损失容忍量。
9、 根据权利要求 7所述的基站, 其特征在于, 所述损失容忍量设置单元还 包括:
实际业务速率获取子单元,用于获取所述第一终端组中的每个所述开启 GBR 业务的用户终端的实际业务速率;
实际业务速率判断子单元, 用于判断每个所述开启 GBR业务的用户终端的 实际业务速率是否小于所述开启 GBR业务的用户终端各自对应的目标业务速率; 损失容忍量减少子单元, 用于当所述实际业务速率判断单元判断出所述开 启 GBR业务的用户终端的实际业务速率小于所述目标业务速率时, 按照第一预 定的变换值减少所述实际业务速率小于所述目标业务速率的所述开启 GBR 业务 的用户终端的所述损失容忍量; 和\或
损失容忍量增加子单元, 用于所述开启 GBR业务的用户终端的实际业务速 率不小于所述目标业务速率时, 按照第二预定的变换值增加所述实际业务速率 不小于所述目标业务速率的所述开启 GBR业务的用户终端的所述损失容忍量。
10、 根据权利要求 9所述的基站, 其特征在于, 所述第一预定的变换值与 所述第二预定的变换值为同一值; 或
所述第一预定的变换值与所述第二预定的变换值为不同值。
11、 根据权利要求 7所述的基站, 其特征在于, 所述配对单元, 还用于当 所述第一待匹配用户终端的所述预配对后的业务速率的损失始终不在所述第一 待匹配用户终端的损失容忍量范围内时, 使所述第一待匹配用户终端不参与 MU-MIM0配对处理。
12、 一种基站, 其特征在于, 包括:
存储器, 用于存储调度指令;
处理器, 用于根据所述存储器存储的所述调度指令, 在第一终端组中选一 个第一待匹配用户终端, 并在第二终端组中选 N-1 个第二待匹配用户终端; 其 中, 所述第一待匹配用户终端为所述第一终端组中所述开启保证比特率 GBR业 务的用户终端, N为系统允许配对的用户终端的总数, 且大于或等于 2 ; 获取预 配对后的业务速率; 所述预配对后的业务速率包括所述第一待匹配用户终端预 配对后的业务速率和所述第一待匹配用户终端与所述 N-1 个第二待匹配用户终 端预配对组成多天线终端组后的业务总速率; 相对所述第一待匹配用户终端预 配对前的业务速率, 判断所述第一待匹配用户终端预配对后的业务速率的损失 是否在所述第一待匹配用户终端的预设的损失容忍量范围内; 当所述第一待匹 配用户终端的所述预配对后的业务速率的损失在所述损失容忍量的范围内时, 如果所述业务总速率高于所述第一待匹配用户终端预配对前的业务速率, 则确 定所述第一待匹配用户终端与所述 N-1 个第二待匹配用户终端配对组成多天线 终端组;
收发器, 用于进行所述多天线终端组的数据传输。
1 3、 根据权利要求 10所述的基站, 其特征在于, 所述处理器, 还用于为每 个所述开启保证比特率 GBR 业务的用户终端分别预先设置一个固定的损失容忍 量。
14、 根据权利要求 10所述的基站, 其特征在于, 所述处理器, 还用于获取 所述第一终端组中的每个所述开启 GBR业务的用户终端的实际业务速率;
判断每个所述开启 GBR业务的用户终端的实际业务速率是否小于所述开启 GBR业务的用户终端各自对应的目标业务速率;
当所述开启 GBR 业务的用户终端的实际业务速率小于所述目标业务速率 时, 按照第一预定的变换值减少所述实际业务速率小于所述目标业务速率的所 述开启 GBR业务的用户终端的所述损失容忍量; 和\或
当所述开启 GBR业务的用户终端的实际业务速率不小于所述目标业务速率 时, 按照第二预定的变换值增加所述实际业务速率不小于所述目标业务速率的 所述开启 GBR业务的用户终端的所述损失容忍量。
15、 根据权利要求 1 0所述的基站, 其特征在于, 所述处理器还用于所述相 对所述第一待匹配用户终端预配对前的业务速率, 判断所述第一待匹配用户终 端预配对后的业务速率的损失是否在所述第一待匹配用户终端的损失容忍量范 围内, 进一步包括:
当所述第一待匹配用户终端预配对后的业务速率相对于所述第一待匹配用 户终端预配对前的业务速率的损失始终不在所述第一待匹配用户终端的损失容 忍量范围内时, 所述第一待匹配用户终端不参与 MU-MIM0配对处理。
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