WO2011060713A1 - Procédé d'attribution de ressources, dispositif de réseau d'accès et système de communication - Google Patents

Procédé d'attribution de ressources, dispositif de réseau d'accès et système de communication Download PDF

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Publication number
WO2011060713A1
WO2011060713A1 PCT/CN2010/078809 CN2010078809W WO2011060713A1 WO 2011060713 A1 WO2011060713 A1 WO 2011060713A1 CN 2010078809 W CN2010078809 W CN 2010078809W WO 2011060713 A1 WO2011060713 A1 WO 2011060713A1
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Prior art keywords
uplink
frequency band
terminal
frequency
preset
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PCT/CN2010/078809
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English (en)
Chinese (zh)
Inventor
李爽
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华为技术有限公司
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Priority to JP2012539172A priority Critical patent/JP5439690B2/ja
Publication of WO2011060713A1 publication Critical patent/WO2011060713A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a resource allocation method, an access network device, and a communication system.
  • the astigmatism index of the LTE UE is very strict in the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) 36.101 protocol.
  • the index reaches -35.7dBm/300KHz, which is equivalent to the requirement of increasing the capacity of the ordinary filter by more than 5dB in the 300KHz bandwidth.
  • the existing solution mainly implements the spur indicator required by the 3GPP 36.101 protocol by enhancing the hardware filter of the terminal, thereby reducing the adjacent adjacent frequency interference of the uplink signal of the LTE UE to the PHS signal. It can be understood that, because the existing solution has high requirements on the processing of the hardware filter of the terminal, it is necessary to select a filter with high cost, which is very disadvantageous for reducing the hardware cost of the terminal.
  • the embodiments of the present invention provide a resource allocation method, an access network device, and a communication system, which can solve the problem of adjacent frequency interference and reduce the hardware cost of the terminal.
  • the embodiment of the present invention provides the following technical solutions:
  • a resource allocation method including:
  • the uplink data of the terminal is allocated an uplink resource block of the second frequency band used by the second system, where the second frequency band is The frequency interval of the first uplink frequency band satisfies a preset frequency interval condition.
  • An access network device including:
  • An acquiring module configured to acquire a current transmit power of a terminal in the first system, where the cell accessed by the terminal uses a first uplink frequency band;
  • a determining module configured to determine whether a transmit power acquired by the acquiring module is greater than a preset first power threshold
  • a resource allocation module configured to: when the determining module determines that the transmit power acquired by the acquiring module is greater than a preset first power threshold, allocate a frequency for the uplink data of the terminal to be away from the second frequency band used by the second system.
  • the uplink resource block where the frequency interval between the second frequency band and the first uplink frequency band satisfies a preset frequency interval condition.
  • a communication system includes: an access network device in the foregoing embodiment, and a terminal using an uplink resource block allocated by the access network device.
  • the resource allocation is adjusted.
  • the strategy is to allocate the uplink data of the terminal as far as possible to the uplink resource block of the adjacent frequency band occupied by other system systems, which is beneficial to reduce interference between adjacent systems; because the resource allocation strategy is adjusted to solve the adjacent frequency
  • the interference problem can eliminate the need for the terminal to select a hardware filter with high performance. Compared with the prior art, it is beneficial to reduce the terminal. Hardware cost.
  • FIG. 1 is a flowchart of a resource allocation method according to Embodiment 1 of the present invention.
  • FIG. 2 is a flowchart of a resource allocation method according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic diagram of an access network device according to Embodiment 3 of the present invention.
  • Embodiment 4 is a schematic diagram of a communication system according to Embodiment 4 of the present invention.
  • the embodiments of the present invention provide a resource allocation method, an access network device, and a communication system.
  • a resource scheduling algorithm for uplink data of a terminal By adjusting a resource scheduling algorithm for uplink data of a terminal, the hardware cost of the terminal is reduced.
  • a resource allocation method may include:
  • the current transmit power of the terminal can be obtained in multiple manners.
  • the current transmit power of the terminal can be calculated according to the maximum transmit power (P max ) of the terminal and the power headroom (PHR, Power Head Room) reported by the terminal. (P max - PHR ), where PHR is the difference between the transmitted power and the maximum power.
  • Step 130 is performed; if no, step 140 can be performed.
  • the size of the first power threshold may be preset according to requirements. For example, the size of the first power threshold may be preset to 20 dBm.
  • the uplink data of the terminal is allocated to the uplink resource block of the second frequency band used by the second system, where the frequency interval between the second frequency band and the first uplink frequency band meets a preset frequency interval condition.
  • the cell accessed by the terminal may be referred to as the current cell, and correspondingly, the wireless communication system accessed by the terminal may be referred to as the current system.
  • the second system and the first system may adopt different systems, and the frequency interval between the second frequency band and the uplink working frequency band (the first uplink frequency band) of the cell accessed by the terminal may generate a large interference if the preset frequency interval condition is met. The possibility is also relatively large.
  • the uplink data of the terminal can be allocated an uplink resource block whose frequency is far from the second frequency band.
  • the determining manner that the frequency interval between the second frequency band and the first uplink frequency band meets the preset frequency interval condition may be: determining whether the frequency interval between the second frequency band and the first uplink frequency band is less than a preset first frequency interval.
  • the threshold value determines whether the frequency interval between the second frequency band and the first uplink frequency band satisfies a preset frequency interval condition. If the frequency interval between the second frequency band and the first uplink frequency band is smaller than the preset first frequency interval, determining that the frequency interval between the second frequency band and the first uplink frequency band meets a preset frequency interval condition, otherwise, determining The frequency interval between the second frequency band and the first uplink frequency band does not satisfy the preset frequency interval condition.
  • the size of the frequency interval between the two frequency bands will directly affect the interference between the signals transmitted on the two frequency bands.
  • the size of the first frequency interval may be set according to a specific application scenario, and the resource may be determined according to whether the frequency interval between the second frequency band and the uplink working frequency band of the current cell is smaller than the first frequency interval. The assigned strategy.
  • the uplink data of the terminal can be allocated in a plurality of ways to the uplink resource block of the second frequency band used by the second system.
  • the uplink resource block may be sequentially determined whether the uplink resource block satisfies a signal to noise ratio (SNR) decision condition, where
  • SNR signal to noise ratio
  • the signal to noise ratio decision condition is that the signal to noise ratio of the uplink resource block is greater than the preset first signal to noise ratio threshold; and the first one that satisfies the above SNR decision condition is selected.
  • a plurality of uplink resource blocks, and the selected uplink resource blocks are allocated to the foregoing terminal.
  • another frequency interval threshold (which may be referred to as a second frequency interval threshold) may be preset according to a specific situation, and the frequency interval between the frequency value and the second frequency band is greater than the preset
  • the available uplink resource blocks of the second frequency interval threshold one or more uplink resource blocks satisfying the foregoing signal to noise ratio decision condition are selected, and the selected uplink resource block is allocated to the terminal.
  • the size of the first signal to noise ratio threshold can be set as needed.
  • the time domain and the frequency domain location of the uplink resource block allocated for the uplink data of the terminal may be notified to the terminal by using related signaling, and the terminal transmits the uplink data to the uplink resource block allocated thereto.
  • the resource allocation strategy can achieve the frequency of the uplink data transmitted by the terminal and the frequency interval of the second frequency band used by the second system as far as possible, thereby reducing or avoiding the transmission of the uplink data by the terminal and the second frequency band used by the second system.
  • Mutual interference between the transmitted signals can be achieved.
  • one or more uplink resource blocks whose signal to noise ratio is greater than a preset first signal to noise ratio threshold may be allocated to the uplink data of the terminal.
  • the first system and the second system in the embodiments of the present invention may be any two communication systems: PHS, LTE, Global System for Mobile communication (GSM), and code.
  • the embodiment of the present invention is not limited to the above examples.
  • the CDMA Code Division Multiple Access
  • the third generation mobile communication system (3G, 3rd Generation Mobile Communication)
  • Wimax WiFi.
  • the access network device may be a base station (a base station in an LTE system may be referred to as an enhanced base station), a base station controller, an access point, or Other devices having equivalent or similar functions in the communication system
  • the terminal may be a relay station (RS, Relay Station), a user equipment (such as a mobile phone), or other receiving device having equivalent or similar functions, which is not limited by the embodiment of the present invention.
  • the embodiment of the present invention obtains and determines the current transmission of the terminal. Whether the power is greater than a certain threshold, when the transmission power of the terminal is greater than a certain threshold, adjust the resource allocation strategy, and allocate the frequency of the uplink data of the terminal as far as possible to the adjacent frequency band occupied by other system systems.
  • the uplink resource block is beneficial to reduce the interference between adjacent systems. Because the resource allocation strategy is adjusted to solve the problem of adjacent frequency interference, the terminal can select the hardware filter with high performance, which is compared with the existing one. In terms of technology, the hardware cost of the terminal can be reduced.
  • the system A occupies the frequency band a1
  • the system B occupies the frequency band bl (where, the system A and the system B are different types of wireless communication systems, the frequency band a1 and the frequency band bl phase Neighbor)
  • the base station of System A takes the process of flexibly performing resource allocation according to the current transmit power of the terminal as an example, and further details are described.
  • a resource allocation method may include:
  • the base station acquires a current transmit power of the terminal.
  • the manner in which the base station obtains the current transmit power of the terminal may be various.
  • the terminal can report the current PHR in real time in each subframe.
  • the base station determines whether the obtained transmit power is greater than a preset power threshold W1. If yes, go to step 203. If no, go to step 205.
  • the base station can preset the power threshold W1 according to the needs, and the current transmission power of the terminal. Differently from the preset power threshold W1, flexible selection of different resource allocation strategies.
  • the base station can flexibly adjust the size of its preset power threshold W1 according to different application scenarios to meet different scenarios.
  • the preset power threshold W1 of the base station may be 15 dBm, 20 dBm, 22 dBm or other values, which is not limited herein.
  • the base station determines whether the frequency interval between the frequency band b1 and the uplink working frequency band of the terminal access cell is It is smaller than the preset frequency interval threshold Fl. If yes, go to step 204. If no, go to step 205. It can be understood that the uplink working frequency band of the current cell may be part or all of the frequency band a1 occupied by the system A, and the frequency interval between the frequency band bl occupied by the system B and the uplink working frequency band of the current cell is smaller than the preset frequency interval threshold Fl , you can consider the problem of mutual interference.
  • the base station can flexibly select a different resource allocation strategy according to the size relationship according to the mutual interference situation in different scenarios and the flexible preset frequency interval F1.
  • step 203 and the step 202 are not in an inevitable order, and the step 203 may be performed first, and then the step 202 is performed.
  • step 203 may be omitted, that is, if the base station determines the current transmission of the acquired terminal. If the power is greater than the preset power threshold W1, and the base station has previously learned that the frequency interval between the frequency band bl and the uplink working frequency band of the terminal accessing cell is smaller than the preset frequency interval threshold F1, step 204 is directly performed; Frequency band bl and terminal access small
  • the base station allocates the uplink data as far as possible from the frequency band.
  • the size of the frequency interval F1 that is preset by the base station may be 1 ⁇ , 10 MHz, 20 MHz, or other values, which is not limited herein.
  • the uplink data allocation frequency of the terminal can be allocated as far as possible from the uplink resource block (RB) of the frequency band b1 in a plurality of manners, thereby reducing the adjacent adjacent frequency interference as much as possible, and the base station can refer to multiple related parameters.
  • the base station can simultaneously refer to: the frequency interval of the uplink resource block (ie, the available uplink resource block) to be allocated to the frequency band B1, the current SNR of the uplink resource block to be allocated, and other one or more related parameters.
  • the base station can obtain the current SNR of each uplink resource block to be allocated in real time, and the base station can further preset a signal to noise ratio threshold S1 by using the SNR of each to-be-assigned uplink resource block and a preset signal to noise ratio. S1 is compared to ensure that the uplink data of the terminal is allocated to the SNR. An available uplink resource block larger than the preset signal to noise ratio threshold SI to ensure the quality of data transmission and reduce the bit error rate.
  • the base station may preferentially allocate the frequency of the uplink data of the terminal as far as possible.
  • another frequency interval threshold F2 may be set according to a specific situation, and the base station may
  • the SNR is an uplink resource block of S1, and the selected uplink resource block is allocated to the terminal. It can be understood that the implementation of the algorithm is relatively simple, the implementation of the resource allocation process is relatively low, and the implementation is relatively easy.
  • the base station may select uplink data that is allocated to the terminal by some of the uplink resource blocks according to actual needs. It can be understood that the selected uplink resource blocks can be one or more.
  • the base station may also preferentially determine whether the SNR of each uplink resource block is greater than a preset SNR threshold S1, starting from an available uplink resource block whose frequency is farthest from the frequency band bl, and selecting the first to satisfy the SNR greater than the pre- One or more uplink resource blocks of the SNR threshold S1 are allocated, and the selected uplink resource block is allocated to the terminal.
  • the method can allocate the uplink data of the terminal to the uplink resource block whose frequency is farthest from the frequency band bl, thereby facilitating the maximum reduction of the adjacent frequency interference.
  • the base station allocates an uplink resource block for the uplink data of the terminal according to an existing process.
  • this step is as follows: If the frequency interval between the frequency band bl and the uplink working frequency band of the current cell is greater than or equal to the preset frequency interval threshold Fl, or the current transmitting power of the terminal is less than or equal to the preset power threshold Wl.
  • the base station may allocate one or more uplink resource blocks with the SNR as large as possible according to the SNR of each resource block to be allocated according to the existing process or mode, without considering the frequency size or frequency. The problem of spacing.
  • the base station can also refer to other parameters for resource allocation at the same time.
  • the base station can notify the terminal of the time domain and the frequency domain location of the uplink resource block allocated for the uplink data of the terminal by using the related signaling.
  • the terminal After the terminal knows the time domain and the frequency domain location of the uplink resource block allocated by the base station for its uplink data, the terminal transmits the uplink data by using the uplink resource block allocated for the uplink data.
  • the base station can be reasonably valid in real time according to the dynamic change of the actual situation according to the actual situation.
  • the frequency band a is LTE UE BAND 1 frequency band (UL: 1920 MHz ⁇ 1980 MHz; DL: 2110 MHz ⁇ 2170 MHz), system B is PHS, and the range of the frequency band bl is 1884.5 MHz. ⁇ 1919.6MHz.
  • the process of allocating resources to the terminals of the LTE system by the base station of the LTE system is taken as an example for description.
  • the base station can calculate the current transmit power of the terminal according to the PHR reported by the terminal in the current subframe in combination with the maximum transmit power P max of the terminal.
  • the base station may also select other methods to obtain the current transmit power of the terminal, which is not limited herein.
  • the base station determines whether the current transmit power of the obtained terminal is greater than Wl (20dBm).
  • the base station can allocate an uplink resource block whose frequency is as far as possible from the frequency band bl (1919.6 MHz) and the SNR is greater than SI (40 dB).
  • the base station can preferentially allocate an uplink resource block that is farthest from the frequency band bl (1919.6 MHz) (that is, an uplink resource block whose frequency is located at 1940 MHz), and allocate an uplink resource block with an SNR greater than 40 dB for the uplink data of the terminal.
  • the base station can also refer to other parameters for resource allocation at the same time. If the current working frequency band of the current cell is 1940 MHz to 1960 MHz, that is, the frequency lower limit of the uplink working frequency band of the current cell and the frequency interval of the frequency band occupied by the PHS are smaller than the preset frequency interval greater than the preset frequency interval threshold Fl, The base station can flexibly select the foregoing two resource allocation policies to allocate uplink resource blocks for the uplink data of the terminal.
  • the base station may further notify the terminal of the time domain and frequency domain location of the uplink resource block allocated for the uplink data of the terminal by using the related signaling. After learning the time domain and the frequency domain location of the uplink resource block allocated by the base station for its uplink data, the terminal transmits the uplink data by using the uplink resource block allocated for its uplink data.
  • the base station may select an uplink resource block (RB) allocated by the relatively reasonable resource allocation policy for each terminal's uplink data according to the foregoing manner, so as to ensure that the resource allocation is reasonable and effective in real time.
  • RB uplink resource block
  • the base station can select a relatively reasonable resource allocation policy according to the foregoing manner, and use a physical uplink shared channel (PUSCH) that can be used for each terminal to transmit uplink data of the terminal. Allocate resource blocks to ensure that resource allocation is reasonable and effective in real time, and minimize adjacent channel interference.
  • PUSCH physical uplink shared channel
  • the above system A and the above system B may be systems adopting any two systems as follows: LTE, PHS, GSM, CDMA, 3G, Wimax, WiFi, and are not limited to the above examples.
  • the base station allocates resource blocks to the terminal according to different situations according to different situations, and the foregoing base station may also be other devices with equivalent or similar functions in the communication system. .
  • the base station obtains and determines whether the transmit power of the terminal is greater than a certain threshold.
  • the base station adjusts the resource allocation strategy. It is possible that the uplink data of the terminal is allocated a frequency away from the uplink resource blocks of the adjacent frequency bands occupied by other system systems, which is advantageous for reducing mutual interference; since the base station adjusts the resource allocation strategy to solve the problem of adjacent frequency interference, the terminal may There is no need to select a high-performance filter, which is advantageous for reducing the hardware cost of the terminal compared to the prior art.
  • the base station can flexibly select a corresponding resource allocation policy according to specific conditions. Allocating resource blocks to terminals can be applied to multiple application scenarios.
  • an access network device is further provided in the embodiment of the present invention.
  • Embodiment 3
  • an access network device 300 may include: an obtaining module 310, a determining module 320, and a resource allocating module 330.
  • the acquiring module 310 is configured to acquire the current transmit power of the terminal in the first system, and the cell accessed by the terminal uses the first uplink frequency band.
  • the acquiring module 310 can obtain the current transmit power of the terminal in multiple manners.
  • the current transmit power of the terminal can be calculated according to the maximum transmit power (P max ) of the terminal and the PHR reported by the terminal.
  • the determining module 320 is configured to determine whether the transmit power acquired by the acquiring module 310 is greater than a preset first power threshold.
  • the size of the first power threshold may be preset according to requirements. For example, the size of the first power threshold may be preset to 20 dBm.
  • the resource allocation module 330 is configured to: when the determining module 320 determines that the transmit power acquired by the acquiring module 310 is greater than the preset first power threshold, allocate the frequency of the uplink data of the terminal to the uplink of the second frequency band used by the second system. a resource block, where a frequency interval between the second frequency band and the first uplink frequency band meets a preset frequency interval condition.
  • the access network device 300 may further include:
  • a determining module configured to determine whether a frequency interval between the second frequency band and the first uplink frequency band meets a preset frequency interval condition by determining whether a frequency interval between the second frequency band and the first uplink frequency band is smaller than a preset first frequency interval threshold .
  • the frequency interval between the second frequency band and the first uplink frequency band is determined to meet a preset frequency interval condition. And determining that the frequency interval between the second frequency band and the first uplink frequency band does not satisfy the preset frequency interval condition.
  • the resource allocation module 330 can be implemented as a terminal in multiple manners.
  • the row data allocation frequency is far from the uplink resource block of the second frequency band used by the second system.
  • the resource allocation module 330 can include:
  • a first submodule configured to determine, according to an available uplink resource block with a maximum interval between the frequency value and the second frequency band, whether the uplink resource block satisfies a signal to noise ratio decision condition, where the signal to noise ratio decision condition is an uplink resource block
  • the noise ratio is greater than a preset first signal to noise ratio threshold; and one or more uplink resource blocks that satisfy the signal to noise ratio decision condition first are selected.
  • the resource allocation module 330 can include:
  • a third submodule configured to select one or more uplink resource blocks that satisfy a signal to noise ratio decision condition from available uplink resource blocks whose frequency values and frequency intervals of the second frequency band are greater than a preset second frequency interval threshold
  • the signal to noise ratio decision condition is that the signal to noise ratio of the uplink resource block is greater than a preset first signal to noise ratio threshold
  • the resource allocation module 330 is further configured to: when the determining module 320 determines that the transmit power acquired by the acquiring module 310 is less than a preset first power threshold, allocate an uplink resource block with an SNR as large as possible for the uplink data of the terminal.
  • the resource allocation module 330 can adjust the relatively reasonable resource allocation policy for the uplink resource block allocated by the terminal uplink data in real time according to the dynamic change of the actual situation, so as to ensure that the resource allocation is timely and reasonable.
  • the resource allocation module 330 is further configured to: determine, by the determining module 320, that the transmit power acquired by the acquiring module 310 is less than or equal to a preset first power threshold, or in the second frequency band and the first uplink.
  • the uplink data of the terminal is allocated an uplink resource block whose signal to noise ratio is greater than the first signal to noise ratio threshold.
  • the access network device 300 may further include:
  • the notification module is configured to notify the terminal by using the relevant signaling, the time domain and the frequency domain location of the uplink resource block allocated by the resource allocation module 330 for the uplink data of the terminal.
  • the terminal After learning the time domain and the frequency domain location of the uplink resource block allocated by the base station for its uplink data, the terminal transmits the uplink data by using the uplink resource block allocated for its uplink data.
  • the first system and the second system may be respectively adopted by different standards.
  • the wireless communication system for example, the first system and the second system may be systems employing any two of the following systems: PHS, LTE, GSM, CDMA, 3G, Wimax, WiFi, and embodiments of the present invention are not limited to the above examples.
  • the access network device 300 in this example may be a base station (a base station in an LTE system may be referred to as an enhanced base station), a base station controller, an access point, or other devices having equivalent or similar functions in the communication system.
  • the terminal in this example may be a user equipment, a relay station, or other receiving device with equivalent or similar functions, which is not limited in this embodiment.
  • the access network device 300 in this embodiment may be the base station in the second embodiment, and the functions of the respective functional modules may be specifically implemented according to the method in the foregoing method embodiment, and the specific implementation process may refer to the foregoing embodiment. The relevant description in the description will not be repeated here.
  • the access network device 300 obtains and determines whether the current transmit power of the terminal is greater than a certain threshold. When the transmit power of the terminal is greater than a certain threshold, the access network device 300 adjusts the resource.
  • the allocation strategy allocates the uplink data of the terminal to the uplink resource blocks of the adjacent frequency bands occupied by other system systems, which is beneficial to reduce or avoid mutual interference; because the access network device 300 adjusts the resource allocation
  • the strategy can solve the problem of the adjacent-channel interference, and the terminal does not need to select a high-performance filter, which is advantageous for reducing the hardware cost of the terminal compared with the prior art.
  • the access network device 300 can flexibly select a corresponding resource allocation policy to allocate a resource block to the terminal according to a specific situation, and can be applied to multiple application scenarios.
  • the embodiment of the present invention further provides a communication system, which may include: an access network device 300, and a terminal that uses an uplink resource block allocated by the access network device 300.
  • Embodiment 4 In order to facilitate the better implementation of the technical solution of the present invention, a communication system is also provided in the embodiment of the present invention.
  • Embodiment 4
  • a communication system may include: an access network device 410 and a terminal 420, and the access network device 410 and the terminal 420 are communicably connected by data.
  • the access network device 410 is configured to obtain the current transmit power of the terminal 420 in the first system, and the cell accessed by the terminal 420 uses the first uplink frequency band; determining whether the acquired transmit power is greater than a preset first power threshold. If the result of the judgment is that the acquired transmission power is greater than the preset first The power is wide, and the uplink data of the terminal 420 is allocated to the uplink resource block of the second frequency band used by the second system, where the frequency interval between the second frequency band and the first uplink frequency band satisfies a preset frequency interval condition; The time domain and frequency domain location of the uplink resource block of the uplink data allocation of 420 is notified to the terminal 420.
  • the terminal 420 is configured to use the access network device 410 to transmit uplink data for the allocated uplink resource block.
  • the access network device 410 can ensure that the real-time resource allocation is real and reasonable in real time according to the dynamic changes of the actual situation.
  • first system and the second system may be systems employing any two of the following systems: PHS, LTE, GSM, CDMA, 3G, Wimax, WiFi, and the present invention is not limited to the above examples.
  • the access network device 410 can be a base station of a Long Term Evolution system, and the second system can be a personal handheld telephone system.
  • the first upstream frequency band can be, for example, 1920 MHz to 1940 MHz or 1940 to 1960 MHz.
  • the access network device 410 in this embodiment may be the access network device 300 in the third embodiment, and the functions of the respective functional modules may be specifically implemented according to the method in the foregoing solution embodiment, and the specific implementation process thereof. Reference may be made to related descriptions in the foregoing embodiments, and details are not described herein again.
  • the access network device obtains and determines whether the current transmit power of the terminal is greater than a certain threshold.
  • the access network device adjusts resource allocation.
  • the strategy of allocating as much as possible the uplink data of the terminal to the uplink resource blocks of the adjacent frequency bands occupied by other system systems is beneficial to reduce or avoid mutual interference; Since the access network device solves the problem of the adjacent-channel interference by adjusting the resource allocation policy, the terminal does not need to select a high-performance filter, which is advantageous for reducing the hardware cost of the terminal compared with the prior art.
  • the access network device can flexibly select a corresponding resource allocation policy to allocate a resource block to the terminal according to a specific situation, and can be applied to multiple application scenarios.
  • the above storage medium may be a magnetic disk, an optical disk, or a read-only memory.
  • ROM Read-Only Memory
  • RAM Random Access Memory

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Abstract

La présente invention concerne un procédé d'attribution de ressources et un dispositif de réseau d'accès et un système de communication. Le procédé d'attribution de ressources comprend les étapes suivantes qui consistent : à acquérir la puissance de transmission actuelle d'un terminal dans un premier système, la cellule à laquelle le terminal accède utilisant une première bande de fréquence de liaison montante; à évaluer si la puissance de transmission acquise est supérieure à un premier seuil de puissance prédéterminé; si le résultat de l'évaluation est que la puissance de transmission acquise est supérieure au premier seuil de puissance prédéterminé, à attribuer un bloc de ressources de liaison montante dont la fréquence est éloignée de la seconde bande de fréquence utilisée par un second système aux données de liaison montante du terminal, l'intervalle de fréquence entre la seconde bande de fréquence et la première bande de fréquence de liaison montante satisfaisant une condition d'intervalle de fréquence prédéterminée. Par rapport à l'art antérieur, cette solution technique aide à réduire le coût de matériel du terminal.
PCT/CN2010/078809 2009-11-23 2010-11-17 Procédé d'attribution de ressources, dispositif de réseau d'accès et système de communication WO2011060713A1 (fr)

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CN200910199399.X 2009-11-23
CN200910199399XA CN101707779B (zh) 2009-11-23 2009-11-23 资源分配方法、接入网设备及通信系统

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