WO2016149916A1 - Procédé et appareil de transmission de données - Google Patents

Procédé et appareil de transmission de données Download PDF

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Publication number
WO2016149916A1
WO2016149916A1 PCT/CN2015/075036 CN2015075036W WO2016149916A1 WO 2016149916 A1 WO2016149916 A1 WO 2016149916A1 CN 2015075036 W CN2015075036 W CN 2015075036W WO 2016149916 A1 WO2016149916 A1 WO 2016149916A1
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Prior art keywords
user terminal
connection
data transmission
total
band
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PCT/CN2015/075036
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English (en)
Chinese (zh)
Inventor
庄宏成
罗泽宙
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华为技术有限公司
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Priority to PCT/CN2015/075036 priority Critical patent/WO2016149916A1/fr
Publication of WO2016149916A1 publication Critical patent/WO2016149916A1/fr

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

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and apparatus for data transmission in a wireless communication network.
  • the intensive wireless access network allows user terminals to access as short as possible, and enhance users. Terminal throughput and regional throughput of the system.
  • the invention provides a method and a device for data transmission, so as to reduce interference in the data transmission process and improve the efficiency of data transmission.
  • the present invention provides a data transmission method, including:
  • connection mode including multiple connection states and single connection Connected state
  • Data transmission is performed by applying different transmission modes to user terminals of different connection modes.
  • determining a connection mode of the user terminal in the network includes:
  • the user terminal supports the multi-connected state, and the pilot signal strength difference of the at least two cells is less than the preset threshold, determining that the connection mode of the user terminal is a multi-connected state, otherwise, the single-connected state;
  • connection mode of the user terminal is a multi-connected state, otherwise, the single-connected state.
  • the system spectrum is divided into a multi-connection frequency band and a single connection frequency band according to the number of terminals or service requirements of different connection modes, including:
  • the multi-connection band bandwidth and the single-connection band bandwidth are respectively determined according to the ratio of the total number of multi-connected user terminals or the total service demand to the total number of single-connected user terminals or the total service demand and the total system bandwidth.
  • different transmission modes are adopted for terminals of different connection modes for data transmission, including:
  • Data transmission is performed for a multi-connected user terminal to apply a multi-point transmission mode
  • Data transmission is performed for a mode in which a single-connected user terminal applies a silent transmission.
  • data transmission for a multi-connected user terminal applying a multi-point transmission mode includes:
  • the serving cell and the neighboring cell simultaneously transmit data with the multi-connected user terminal;
  • the neighboring cell staggers the transmission resource to avoid interference to the multi-connected user terminal of the serving cell
  • the multi-connected user terminal acquires interference signal configuration information of the neighboring cell, and performs interference cancellation according to the interference signal configuration information.
  • data transmission for a mode in which a single-connected user terminal applies a silent transmission includes:
  • the serving cell When the single-connected user terminal in the neighboring cell is interfered by the serving cell by more than a preset threshold, the serving cell performs data transmission with zero power or low power according to the silence duration and the silence pattern negotiated with the neighboring cell.
  • the method further includes:
  • the parameters determine whether to reselect the appropriate cell for data transmission.
  • the method further includes determining a maximum transmit power of the single connected band or the multi-connected band.
  • determining the maximum transmit power of the single-connected band or the multi-connected band includes:
  • the sum of the transmission powers of the sub-bands of the serving cell is calculated, and the maximum transmission power of the single-connected frequency band or the multi-connection frequency band of the serving cell is obtained.
  • the present disclosure provides a wireless communication network device, including:
  • a determining module configured to determine a connection mode of a user terminal in the network, where the connection mode includes a multi-connected state and a single connected state;
  • Frequency division module used to divide the system spectrum into a multi-connection frequency band and a single connection frequency band according to the number of user terminals or service requirements of different connection modes;
  • a transmission module configured to allocate the multi-connection frequency band to a multi-connected user terminal for data transmission, and allocate the single connection frequency band to a single-connected user terminal for data transmission;
  • the transmission module is also used to apply different transmission modes for data transmission for user terminals of different connection modes.
  • the determining module includes:
  • a receiving module receiving pilot information of a serving cell and a neighboring cell that is measured and reported by the user terminal; and receiving connection capability information of the user terminal reported by the user terminal;
  • a judging module configured to: if the user terminal supports a multi-connection state, and the pilot signal strength difference of the at least two cells is less than a preset threshold, determining that the connection mode of the user terminal is a multi-connected state, otherwise, the single-connected state ;
  • a receiving module receiving neighboring cell interference information measured and reported by the user terminal; and receiving connection capability information of the user terminal reported by the user terminal;
  • the judging module is configured to: if the user terminal supports the multi-connection state, and the neighboring cell interference is greater than the preset threshold, determine that the connection mode of the user terminal is a multi-connected state, otherwise, the single-connected state.
  • the frequency division module includes:
  • the statistics module is used to determine the total number of multi-connected user terminals or the total amount of service requirements in the network; and determine the total number of connected user terminals or the total amount of service requirements in the network;
  • the calculation module is configured to determine the multi-connection bandwidth according to the total number of multi-connected user terminals or the total service demand in the network, the total number of connected user terminals or the total service demand ratio, and the total bandwidth of the system; according to the total bandwidth of the system and multiple connections Band bandwidth determines a single connected band bandwidth;
  • Statistics module used to determine the total number of single-connected user terminals or service requirements in the network; and determine the total number of connected user terminals or the total amount of service requirements in the network;
  • the calculation module is configured to determine a single connection band bandwidth according to the total number of single-connected user terminals or the total service demand in the network, the total number of connected user terminals or the total service demand ratio, and the total bandwidth of the system; according to the total bandwidth of the system and the single connection Band bandwidth determines multi-connection band bandwidth;
  • the statistics module is used to determine the total number of multi-connected user terminals or the total amount of service requirements in the network; and determine the total number of single-connected user terminals or the total amount of service requirements in the network;
  • the calculation module is configured to determine the multi-connection band bandwidth and the single connection band bandwidth according to the ratio of the total number of multi-connected user terminals or the total service demand to the total number of single-connected user terminals or the total service demand and the total system bandwidth.
  • the transmission module further includes:
  • a multi-point transmission module configured to allocate the multi-connection frequency band to a multi-connected user terminal for data transmission, and perform data transmission for a multi-connection state user terminal to apply a multi-point transmission mode;
  • the silent transmission module is configured to allocate the single connection frequency band to a single-connected user terminal for data transmission, and perform data transmission for a single-connected user terminal to apply a silent transmission mode.
  • data transmission for a multi-connected user terminal to apply a multi-point transmission mode includes:
  • the serving cell and the neighboring cell simultaneously transmit data with the multi-connected user terminal;
  • the neighboring cell staggers the transmission resource to avoid interference to the multi-connected user terminal of the serving cell
  • the multi-connected user terminal acquires interference signal configuration information of the neighboring cell, and performs interference cancellation according to the interference signal configuration information.
  • data transmission for a mode in which a single-connected user terminal applies a silent transmission includes:
  • the serving cell When the single-connected user terminal in the neighboring cell is interfered by the serving cell by more than a preset threshold, the serving cell performs data transmission with zero power or low power according to the silence duration and the silence pattern negotiated with the neighboring cell.
  • the apparatus further includes:
  • Power determination module used to determine the maximum transmit power of a single connected band or a multi-connected band.
  • the present invention provides a data transmission method and device, which distinguishes the connection mode of the user terminal, divides the system spectrum according to the number of user terminals or service requirements of different connection modes, and allocates user terminals of different connection modes to different frequency bands for data transmission. And different transmission modes are applied, the interference in the data transmission process is reduced, and the efficiency of data transmission is improved.
  • FIG. 1 is a flowchart of a method for data transmission according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for controlling a single-connected band power according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a wireless network device according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of a wireless network device determining module according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a frequency division module of a wireless network device according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a wireless network device transmission module according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a wireless network device according to another embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a wireless network device according to another embodiment of the present invention.
  • the wireless communication network usually includes: a wireless access point, a wireless access point controller and a user terminal; or only includes a wireless access point and a user terminal.
  • the following embodiment uses a cellular mobile communication network as an example for description, and the wireless access point is The base station, the wireless access point controller is a base station controller.
  • the present invention re-defines the state of the user terminal, including the idle state, the single-connected state, and the multi-connected state.
  • Idle state As with the traditional idle state, the user terminal has no data to send and receive, and is in an inactive state.
  • the user terminal is in the data transmission and reception state, and only communicates with one base station at a time, that is, there is only one serving base station.
  • the user terminal is in the state of data transceiving, and communicates with multiple base stations at each moment, that is, there may be two or more serving base stations at the same time.
  • connection mode includes a multi-connected state and a single connected state
  • Data transmission is performed by applying different transmission modes to user terminals of different connection modes.
  • the data transmission mainly includes:
  • a connection mode of the user terminal in the network that is, determine whether the user terminal is in a single-connected state or a multi-connected state, where the network may be the entire network, or an area in the network, for example, one or more base station coverage areas, and one Or the coverage area of the base station managed by multiple base station controllers; the following two examples are used to illustrate:
  • Method 1 Based on user terminal capabilities and pilot measurements
  • the user terminal measures the pilot information of the serving cell and the neighboring cell, and reports the information to the base station;
  • the user terminal reports its connection capability to the base station to indicate whether multiple connections are supported.
  • the user terminal can report the connection capability to the base station in a plurality of manners, for example, reporting the connection capability to the base station while reporting the terminal capability, or reporting the connection capability to the base station through the measurement report message of the terminal; or using RRC (Radio Resource Control, The radio resource control) reports the connection capability to the base station, such as carrying the connection capability information in the RRC connection request message; or carrying the connection capability information when initiating the service request to the base station;
  • RRC Radio Resource Control
  • the connection mode of the user terminal is multiple connections, otherwise a single connection, that is, the user terminal does not support multiple connections, or there is no pilot signal strength difference of at least two cells is less than the preset threshold, for example, the pilot signal strength difference of any two cells is greater than or equal to the The threshold is determined to be a single connection of the user terminal.
  • Method 2 Based on user terminal capabilities and interference measurement
  • the user terminal measures the interference of the neighboring area it receives, and may also use other parameters, such as SINR (Signal to Interference plus Noise Ratio); and report it to the base station;
  • SINR Signal to Interference plus Noise Ratio
  • the user terminal reports its connection capability to the base station to indicate whether multiple connections are supported.
  • the user terminal can report the connection capability to the base station in a plurality of manners, for example, carrying the connection capability to the base station when reporting the capability of the terminal; or reporting the connection capability to the base station through the measurement report message of the terminal; or reporting the RRC dedicated signaling
  • the connection capability is sent to the base station, such as carrying the connection capability information in the RRC connection request message; or carrying the connection capability information when initiating the service request to the base station;
  • the user terminal supports multiple connections, and the user terminal is interfered by the neighboring area by more than a preset threshold, for example, the SINR is less than the preset threshold, it is determined that the connection mode of the user terminal is multiple connections; otherwise, the single connection, that is, the user The terminal does not support multiple connections, or the user terminal is interfered by the neighboring area less than or equal to the preset threshold. For example, if the SINR is greater than or equal to the preset threshold, it is determined that the connection mode of the user is a single connection.
  • the system spectrum is divided into a multi-connection frequency band and a single connection frequency band, and the step may be performed by a base station or a base station controller.
  • Method 1 the number of user terminals based on different connection modes in the network
  • the step can be completed by the base station or the base station controller;
  • the base station counts the number of multi-connected user terminals. If there are multiple base stations in the network, the base station collects statistics and sends them to other base stations. For example, they can be sent through the interface between the base stations, such as the X2 interface. By interacting with other base stations, one can finally The number of multi-connected user terminals in the network is counted by the base station; or the statistics of each base station are reported to the base station controller, and the total number of multi-connected user terminals in the network is counted by the base station controller;
  • the base station or the base station controller determines the total number of connected state user terminals in the network, and divides the system spectrum into a single connected frequency band and a multiple connected frequency band according to the total number of connected user terminals, the total number of multi-connected user terminals, and the total system bandwidth; among them:
  • BW sc BW-BW mc
  • BW is the total bandwidth of the system
  • N is the total number of connected user terminals in the network
  • N i,mc is the number of multi-connected user terminals of the base station i
  • ⁇ N i,mc is the total number of multi-connected user terminals in the network.
  • the base station controller needs to notify the base station of the division result, and may notify the base station through the S1 interface or the southbound interface, such as the openflow protocol interface.
  • Method 2 Based on the service requirements of user terminals in different connection modes in the network
  • the base station collects the service requirements of the multi-connected user terminal, such as the data rate requirement or the bandwidth requirement. If there are multiple base stations in the network, the base station collects statistics and sends them to other base stations, for example, through the interface between the base stations, such as the X2 interface. By interacting with other base stations, a base station can finally count the total service demand of the multi-connected user terminals in the network; or the statistics of each base station are reported to the base station controller, and the base station controller collects the multi-connected user terminal services in the network. Total demand;
  • the base station or the controller determines the total service demand of the connected terminal user terminal in the network, and divides the system spectrum into a single according to the total service demand of the connected state user terminal, the total service demand of the multi-connected user terminal, and the total system bandwidth. Connected frequency bands and multiple connected frequency bands; where:
  • BW sc BW-BW mc
  • BW is the total bandwidth of the system
  • T is the total user terminal service requirement in the network
  • T i, mc is the service requirement of the multi-connected user terminal of the base station i
  • ⁇ T i, mc is the total of the multi-connected user terminal in the network.
  • the base station controller needs to notify the base station of the division result, and may notify the base station through the S1 interface or the southbound interface, such as the openflow protocol interface.
  • the total number of single-connected user terminals or the total service demand in the network may also be counted first, according to the total number of single-connected user terminals in the network.
  • the ratio of the total amount of service or service demand to the total number of connected user terminals or the total amount of service demand and the total bandwidth of the system determine the bandwidth of the single connection band, and then determine the bandwidth of the multi-connection band according to the total bandwidth of the system and the bandwidth of the single connection band;
  • the total number of multi-connected user terminals or the total number of service requirements in the network, and the total number of single-connected user terminals or the total amount of service requirements may be separately calculated, according to the total number of multi-connected user terminals or the total service demand.
  • the ratio of the total number of single-connected user terminals or the total amount of service demand and the total system bandwidth determine the multi-connection band bandwidth and the single-connection band bandwidth, respectively.
  • data transmission may be performed for a multi-connected user terminal to apply a multi-point transmission mode; data transmission may be performed for a single-connected user terminal to apply a silent transmission mode.
  • the data transmission for the multi-connection user terminal to apply the multi-point transmission mode includes:
  • the serving cell and the neighboring cell simultaneously transmit data in the same spectrum resource, that is, the multi-connected state band and the multi-connected user terminal;
  • the neighboring cell staggers transmission resources, such as time-frequency resources and space resources, to avoid multi-connected user terminals of the serving cell. interference;
  • the multi-connected user terminal acquires interference signal configuration information of the neighboring cell, such as a modulation and coding mode, a FEC (Forward Error Correction), a coding rate, and the like.
  • interference signal configuration information such as a modulation and coding mode, a FEC (Forward Error Correction), a coding rate, and the like.
  • data transmission between the cell and the user terminal refers to data transmission between the cell base station and the user terminal.
  • the data transmission for the mode in which the single-connected user terminal applies the silent transmission includes:
  • the neighboring area When the single-connected user terminal of the serving cell is interfered by the neighboring area by more than a preset threshold, The neighboring area performs data transmission with zero power or low power according to the silence duration and the silence pattern negotiated with the serving cell. Similarly, when the single-connected user terminal in the neighboring cell is interfered by the serving cell by more than a preset threshold, the serving cell performs data transmission with zero power or low power according to the silence duration and the silence pattern negotiated with the neighboring cell.
  • Each base station in the network performs the above operations.
  • the neighboring area interferes greatly.
  • the interference is greater than the preset threshold, the serving cell needs to coordinate with the neighboring area.
  • the relevant neighboring area needs to be Data transmission is performed at zero power or low power according to the negotiated silence duration and silent pattern to avoid interference.
  • the quiet duration and the pattern of the cell are determined by the distribution of the single-connected user terminal.
  • the user-related parameters of the cell can be negotiated at the same time, and the user-related parameters are sent to the single-connected user terminal.
  • the connected state user terminal may determine whether to reselect a suitable cell for data transmission according to the user association parameter.
  • the user association parameter is a cell level, that is, each cell has a user association parameter, which is used to assist the user terminal to perform cell selection.
  • the user association parameter needs to be considered. For example, if the user terminal performs cell selection according to the pilot signal strength of the base station, the cell with the strongest signal is selected as the serving cell. Under the user association parameter, the serving cell selected by the user terminal may be the cell with the largest sum of pilot signal strength and user association parameters.
  • the partial single-connected user terminal may be more conducive to the optimization of the entire network performance.
  • the silent duration and the user association parameters may be jointly optimized to maximize the utility of the entire network. Functions, such as the average throughput of the entire network, are targeted as follows:
  • s is the silent duration variable
  • ⁇ is the user-associated variable
  • X is the average single-connected user terminal data rate
  • U is the network utility function
  • S is the pre-set silence duration value space
  • R is the preset user-associated parameter. Ranges;
  • U k is the utility function of beam k, for example: X i is the average data rate of the single-connected user terminal of beam k, w i is the weight of the single-connected user terminal i; if the base station does not use multi-beam, k denotes the base station.
  • the corresponding silence pattern a* can be obtained by:
  • G ki represents the interference relationship between the beam i and the beam k.
  • G ki 1 indicating that the interference of the beam i to the beam k is greater than a preset threshold, and the interference relationship between the beams or the beams can be obtained by the interference measurement of the user; If the base station does not use multiple beams, k denotes a base station.
  • a specific method for applying a silent mode for data transmission for a single-connected user terminal is as follows:
  • the base station may send the negotiated user association parameter ⁇ * to each single-connected user terminal, so that the single-connected user terminal determines whether the user is heavy according to the user association parameter ⁇ *.
  • the power control may be separately performed, that is, the maximum transmission power of the single connection frequency band is determined, so as to achieve better communication with different transmission modes of different types of terminals in the previous embodiments.
  • the effect of interference cancellation likewise, the power control method of the single connection band can also be used for multi-connection frequency bands, which can be performed with a small time granularity.
  • the single-link band power control process is described in detail below for a serving cell base station. If there are multiple base stations in the network, each base station can perform similar operations. Those skilled in the art can know that the method can also be used for multiple connections. frequency band.
  • the single connection band power control method includes:
  • the base station divides the single connection frequency band into multiple sub-bands, and can equally divide and perform virtual sub-band scheduling on the user. For example, based on the total user data rate on the current subband, the subbands are sorted in descending order, and then users are virtually allocated for each subband; the neighbor base station performs similar operations.
  • X(P n ) is the average user data rate on subband n, for example: The user i indicating the base station 1 is scheduled to the sub-band n, and K l is the set of users of the base station 1.
  • the base station calculates a power gradient of each sub-band of the serving cell relative to each neighboring area based on the interference of the neighboring cell and the virtual user scheduling measured by the user equipment.
  • the power gradient is a partial bias of the power of the network utility function on the sub-bands of the neighboring cell, indicating the influence of the adjustment of the power of the neighboring sub-bands on the utility function of the cell, and the negative value indicating that the power of the adjacent sub-bands increases the sub-band power.
  • the cell utility function is reduced, that is, negative, and vice versa.
  • the neighbor base station also performs a similar operation.
  • U k is the utility function of the base station k
  • the base station m is the neighboring area of the base station k
  • P(m,j) is the power of base station m on subband j.
  • the base station sends a corresponding power gradient to each neighboring cell.
  • the base station k sends the power parameter D m,k,j to the base station m.
  • the power parameters can be exchanged through an interface between the base stations, such as an X2 interface, such as by load information messages.
  • the base station also receives each neighboring cell to calculate and transmit the power gradient of each sub-band to the serving cell.
  • the base station calculates, according to the power gradient of each sub-band of each neighboring cell to the serving cell, a power adjustment amount of each sub-band of the serving cell.
  • the base station determines, according to a power adjustment quantity of each subband of the serving cell, a transmit power of each subband of the serving cell, where is a sum of a current subband power and a corresponding power adjustment amount; and a sum of transmit powers of the serving cell subband, ie, The maximum transmit power for the single-link band of the serving cell.
  • the sum of the transmission powers of each sub-band of each cell is the maximum transmission power of the single-connection frequency band of each cell; the maximum transmission power of the single-connection frequency band of the cell cannot exceed the physical maximum transmission power of the single-connection frequency band of the cell.
  • the physical maximum transmit power of the single-connected frequency band may be specifically determined based on the service demand ratio of the multi-connected user terminal. For example, according to the service demand ratio of the multi-connected user terminal, the physical maximum transmit power of the multi-connection frequency band can be determined, and the physical maximum transmit power of the single-connection frequency band is the physical maximum transmit power of the base station minus the physical maximum transmit power of the multi-connection frequency band.
  • the maximum transmit power of the single-link band of the serving cell is the power mask of the single-connected band.
  • the power mask of the multi-connection band is the maximum transmit power of the base station minus the power mask of the single-link band.
  • the above method can also be applied to the multi-connection frequency band to determine the multi-connection frequency of the serving cell.
  • the maximum transmit power of the band is the power mask of the multi-connection band.
  • the power mask of the single connected band is the maximum transmit power of the base station minus the power mask of the multi-connected band.
  • the cell is a cell formed by a base station or a base station beam.
  • the power control method described above is performed at a small time granularity, and the interference cancellation of the non-transmission mode is adopted for different types of terminals in a large time granularity, so that the interference elimination management is more flexible and the effect is better.
  • the embodiment of the present invention further provides a corresponding wireless communication network device, where the device may correspond to a wireless access point in the method, such as: a base station; or may be a wireless access point and wireless access.
  • Point controllers such as base stations and base station controllers.
  • the wireless network device includes:
  • a determining module 301 configured to determine a connection mode of the user terminal in the network, where the connection mode includes a multi-connected state and a single connected state;
  • the frequency dividing module 302 is configured to divide the system spectrum into a multi-connection frequency band and a single connection frequency band according to the number of user terminals or service requirements of different connection modes;
  • a transmission module 303 configured to allocate the multi-connection frequency band to a multi-connected user terminal for data transmission, and allocate the single connection frequency band to a single-connected user terminal for data transmission;
  • the transmission module 303 is further configured to apply different transmission modes for data transmission for user terminals of different connection modes.
  • the determining module 301 includes:
  • the receiving module 401 is configured to receive pilot information of the serving cell and the neighboring cell that is measured and reported by the user terminal, and receive connection capability information of the user terminal that is reported by the user terminal;
  • the determining module 402 is configured to: if the user terminal supports the multi-connected state, and the pilot signal strength difference of the at least two cells is less than a preset threshold, determine that the connection mode of the user terminal is a multi-connected state, otherwise, the single connection state;
  • the receiving module 401 is configured to receive neighboring cell interference information that is measured and reported by the user terminal, and receive connection capability information of the user terminal that is reported by the user terminal;
  • the determining module 402 is configured to determine that the connection mode of the user terminal is a multi-connected state if the user terminal supports the multi-connected state, and the neighboring cell interference is greater than a preset threshold, and is otherwise a single connected state.
  • the receiving module 401 and the determining module 402 can also have the above two functions.
  • the frequency dividing module 302 includes:
  • the statistic module 501 is configured to determine a total number of multi-connected user terminals or a total service requirement in the network, and determine a total number of connected user terminals or a total service demand in the network;
  • the calculation module 502 is configured to determine, according to the total number of multi-connected user terminals or the total service demand in the network, the total number of connected user terminals or the total service demand ratio and the total bandwidth of the system, and determine the multi-connection bandwidth;
  • the connection band bandwidth determines the single connection band bandwidth;
  • the statistics module 501 is configured to determine a total number of single-connected user terminals or service requirements in the network, and determine a total number of connected user terminals or a total service demand in the network;
  • the calculation module 502 is configured to determine a single connection band bandwidth according to the total number of single-connected user terminals or the total service demand in the network, the total number of connected user terminals or the total service demand ratio, and the total bandwidth of the system; Connecting the bandwidth of the band to determine the bandwidth of the multi-connection band;
  • the statistic module 501 is configured to determine a total number of multi-connected user terminals or a total service requirement in the network, and determine a total number of single-connected user terminals or a total service demand in the network;
  • the calculating module 502 is configured to determine a multi-connection band bandwidth and a single connection band bandwidth according to a ratio of a total number of multi-connected user terminals or a total service requirement to a total number of single-connected user terminals or a total service demand ratio and a total system bandwidth. .
  • the above statistics module 501 and the calculation module 502 can also specify the above two or three functions at the same time.
  • the transmission module 303 further includes:
  • a multi-point transmission module 601 configured to allocate the multi-connection frequency band to a multi-connection state user terminal for data transmission, and perform multi-connection state user terminal application multi-point transmission mode for data transmission;
  • a silent transmission module 602 a user terminal for allocating the single connection band to a single connected state The data transmission is performed, and the data transmission is performed for the mode in which the single-connected user terminal applies the silent transmission.
  • the data transmission for the multi-connected user terminal to apply the multi-point transmission mode includes:
  • the serving cell and the neighboring cell simultaneously transmit data with the multi-connected user terminal;
  • the neighboring cell staggers the transmission resource to avoid interference to the multi-connected user terminal of the serving cell
  • the multi-connected user terminal acquires interference signal configuration information of the neighboring cell, and performs interference cancellation according to the interference signal configuration information.
  • the data transmission for the mode in which the single-connected user terminal applies the silent transmission includes:
  • the serving cell When the single-connected user terminal in the neighboring cell is interfered by the serving cell by more than a preset threshold, the serving cell performs data transmission with zero power or low power according to the silence duration and the silence pattern negotiated with the neighboring cell.
  • the wireless network device may further include:
  • the power determination module 304 is configured to determine a maximum transmit power of a single connected band or a multi-connected band. For specific functions, refer to steps 201-205 in FIG. 2 of the method embodiment.
  • the corresponding wireless network device mentioned in the embodiment of the method for the corresponding embodiment of the wireless network device provided by the embodiment of the present invention may implement the corresponding steps of the foregoing method embodiment.
  • the embodiment of the present invention further provides a wireless network device.
  • the device includes a processor 802, a receiver 801, and a transmitter 803, corresponding to the corresponding network device mentioned in the method embodiment, to implement corresponding Function, the device is similar to the wireless network device of the embodiment of Figure 3, wherein:
  • Receiver 801 configured to determine a connection mode of a user terminal in the network, the connection mode package Including multiple connected states and single connected states;
  • the processor 802 is configured to divide the system spectrum into multiple connected frequency bands and single connected frequency bands according to the number of user terminals or service requirements of different connection modes;
  • a transmitter 803 configured to allocate the multi-connection frequency band to a multi-connected user terminal for data transmission, and allocate the single connection frequency band to a single-connected user terminal for data transmission;
  • the transmitter 803 is also configured to apply different transmission modes for data transmission for user terminals of different connection modes.
  • the implementation manner is various, and is not limited to the foregoing implementation manners.
  • the receiver 801 can implement the corresponding function of the receiving module 401 in FIG. 4, and the determining module 402 can be implemented by the processor 802.
  • the power determining module 304 in FIG. 7 can be implemented by The processor 802 implements, the receiver 801, the processor 802 and the transmitter 803 jointly implement corresponding functions of the network device in the method embodiment, for example, the receiver 801 implements related receiving related functions, and the transmitter 803 implements related transmission and transmission related functions.
  • the processor 802 implements related functions such as calculation, statistics, and judgment.
  • the data transmission method and device adaptively allocates spectrum resources according to the connection state of the user terminals in the network, thereby effectively avoiding interference of user terminals in the cell during data transmission, and reducing interference of user terminals between cells;
  • the multi-point transmission and the silent transmission optimization of the joint multi-cell further reduce the interference of the user terminals between the cells; and can also combine the power adjustment of the multi-cell, further reduce the interference between the cells, and enhance the flexibility of the interference management.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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

Abstract

L'invention concerne un procédé de transmission de données, qui consiste : à déterminer un mode de connexion d'un terminal utilisateur dans un réseau, le mode de connexion comprenant un état de connexion multiple et un état de connexion unique ; selon le nombre de différents modes de connexion du terminal utilisateur ou d'exigence commerciale, à diviser un spectre de fréquence de système en une bande de fréquence de connexion multiple et en une bande de fréquence de connexion unique ; à attribuer la bande de fréquence de connexion multiple à l'état de connexion multiple du terminal utilisateur pour réaliser une transmission de données, et à attribuer la bande de fréquence de connexion unique à l'état de connexion unique du terminal utilisateur pour réaliser une transmission de données, différents modes de transmission étant utilisés pour réaliser une transmission de données pour différents modes de connexion d'un terminal utilisateur, permettant ainsi de réduire le brouillage durant le processus de transmission de données, et d'améliorer l'efficacité de transmission de données.
PCT/CN2015/075036 2015-03-25 2015-03-25 Procédé et appareil de transmission de données WO2016149916A1 (fr)

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CN111586624A (zh) * 2019-02-18 2020-08-25 中国移动通信有限公司研究院 一种终端能力的确定方法、装置和计算机可读存储介质

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CN101868017A (zh) * 2010-06-13 2010-10-20 中兴通讯股份有限公司 一种实现CoMP下行通信的方法和装置
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