WO2011060713A1 - Resource allocation method, access network device and communication system - Google Patents
Resource allocation method, access network device and communication system Download PDFInfo
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- 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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- 238000013468 resource allocation Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000004891 communication Methods 0.000 title claims abstract description 26
- 230000007774 longterm Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 13
- 230000008569 process Effects 0.000 description 9
- 230000006870 function Effects 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000011664 signaling Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 201000009310 astigmatism Diseases 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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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
A resource allocation method and an access network device and a communication system are provided. The resource allocation method includes: acquiring the current transmission power of a terminal in a first system, wherein the cell accessed by the terminal uses a first uplink frequency band; judging whether the acquired transmission power is greater than a preset first power threshold; if the result of the judgment being that the acquired transmission power is greater than the preset first power threshold, allocating an uplink resource block having the frequency away from the second frequency band used by a second system to the uplink data of the terminal, wherein the frequency interval between the second frequency band and the first uplink frequency band satisfies a preset frequency interval condition. Comparing with the prior art, this technical solution helps to reduce the hardware cost of the terminal.
Description
资源分配方法、 接入网设备及通信*** Resource allocation method, access network device and communication system
本申请要求于 2009 年 11 月 23 日提交中国专利局、 申请号为 200910199399.X,发明名称为"资源分配方法、接入网设备及通信***"的中 国专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域 This application claims the priority of the Chinese Patent Application entitled "Resource Allocation Method, Access Network Equipment and Communication System" submitted to the China Patent Office on November 23, 2009, application number 200910199399.X, the entire contents of which are The citations are incorporated herein by reference. Technical field
本发明涉及通信技术领域, 具体涉及一种资源分配方法、 接入网设备 及通信***。 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.
背景技术 在两个无线通信***的信号同时传输时, 若两个***所使用频段的范 围非常的接近, 两者之间通常会产生比较严重的同邻频干扰。 BACKGROUND When signals of two wireless communication systems are simultaneously transmitted, if the ranges of frequency bands used by the two systems are very close, a relatively serious adjacent-channel interference usually occurs between the two.
个人手持式电话***(PHS, Personal Handy-Phone System )使用频段 的范围: 1884.5MHz 1919.6MHz; 长期演进(LTE, Long Term Evolution ) 用户设备( UE, User equipment ) BANDl频段的范围:上行链路( UL, Uplink ) 为 1920 MHz ~ 1980 MHz, 下行链路( DL, Downlink )为 2110 MHz ~ 2170 MHz。由于 LTE UE BANDl上行链路频段的范围和 PHS频段的范围十分的接 近( 1920MHz - 1919.6MHz = 0.4MHz ), 以至于两个***之间会产生严重的 同邻频干扰。 The range of frequency bands used by the Personal Handy-Phone System (PHS) is 1884.5MHz 1919.6MHz; Long Term Evolution (LTE, Long Term Evolution) User Equipment (UE, User equipment) Range of BAND1 Band: Uplink ( UL, Uplink) is 1920 MHz ~ 1980 MHz, and downlink (DL, Downlink) is 2110 MHz ~ 2170 MHz. Since the range of the LTE UE BAND1 uplink frequency band is very close to the range of the PHS frequency band (1920MHz - 1919.6MHz = 0.4MHz), serious adjacent-channel interference will occur between the two systems.
为尽量避免 LTE UE上行信号对 PHS信号的同邻频干扰, 在第三代移动 通信标准化伙伴项目 (3GPP, 3rd Generation Partnership Project ) 36.101协 议中对 LTE UE的杂散指标规定的非常苛刻 , 杂散指标达到 -35.7dBm/300KHz, 相当于在 300KHz带宽上对普通滤波器的能力增加 5dB 以上的要求。 In order to avoid the same adjacent frequency interference of the LTE UE uplink signal to the PHS signal, 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.
现有方案主要通过增强终端的硬件滤波器, 实现 3GPP 36.101协议所要 求的杂散指标, 进而减小 LTE UE上行信号对 PHS信号的同邻频干扰。 可以 理解的是, 由于现有方案对终端的硬件滤波器的处理要求较高, 需要选用 成本很高的滤波器, 故而非常不利于降低终端的硬件成本。
发明内容 本发明实施例提供一种资源分配方法、 接入网设备及通信***, 能够 解决同邻频干扰问题, 同时有利于降低终端的硬件成本。 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. SUMMARY OF THE INVENTION 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.
为解决上述技术问题, 本发明实施例提供以下技术方案: To solve the above technical problem, the embodiment of the present invention provides the following technical solutions:
一种资源分配方法, 包括: A resource allocation method, including:
获取处于第一***的终端当前的发射功率, 所述终端接入的小区使用 第一上行频段; Obtaining a current transmit power of the terminal in the first system, where the cell accessed by the terminal uses the first uplink frequency band;
判断所述获取的发射功率是否大于预设的第一功率阔值; Determining whether the acquired transmit power is greater than a preset first power threshold;
若判断的结果为所述获取的发射功率大于预设的第一功率阔值, 为所 述终端的上行数据分配频率远离第二***使用的第二频段的上行资源块, 其中, 第二频段与第一上行频段的频率间隔满足预设的频率间隔条件。 If the result of the determination is that the acquired transmit power is greater than the preset first power threshold, 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.
一种接入网设备, 包括: An access network device, including:
获取模块, 用于获取处于第一***的终端当前的发射功率, 所述终端 接入的小区使用第一上行频段; 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;
判断模块, 用于判断所述获取模块获取的发射功率是否大于预设的第 一功率阔值; a determining module, configured to determine whether a transmit power acquired by the acquiring module is greater than a preset first power threshold;
资源分配模块, 用于在所述判断模块判断出所述获取模块获取的发射 功率大于预设的第一功率阔值时, 为所述终端的上行数据分配频率远离第 二***使用的第二频段的上行资源块, 其中, 第二频段与第一上行频段的 频率间隔满足预设的频率间隔条件。 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.
一种通信***, 包括: 上述实施例中的接入网设备, 以及使用该接入 网设备分配的上行资源块的终端。 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.
由上可以看出, 本发明实施例的技术方案中, 获取并判断终端当前的 发射功率是否大于某一设定阔值, 在终端的发射功率大于某一设定阔值时, 调整资源分配的策略, 尽可能为终端的上行数据分配频率远离由其它制式 ***占用的相邻频段的上行资源块, 有利于减小相邻***相互间的干扰; 由于是通过调整资源分配策略来解决同邻频干扰问题, 也就可以不需要终 端选用性能很高的硬件滤波器, 相比较现有技术而言, 有利于降低终端的
硬件成本。 附图说明 为了更清楚地说明本发明实施例中的技术方案, 下面将对实施例描述 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。 It can be seen that, in the technical solution of the embodiment of the present invention, it is obtained and determined whether the current transmit power of the terminal is greater than a certain threshold, and when the transmit power of the terminal is greater than a certain threshold, 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. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. For the embodiments, those skilled in the art can obtain other drawings according to the drawings without any creative labor.
图 1是本发明实施例一提供的一种资源分配方法流程图; 1 is a flowchart of a resource allocation method according to Embodiment 1 of the present invention;
图 2是本发明实施例二提供的一种资源分配方法流程图; 2 is a flowchart of a resource allocation method according to Embodiment 2 of the present invention;
图 3是本发明实施例三提供的一种接入网设备示意图; 3 is a schematic diagram of an access network device according to Embodiment 3 of the present invention;
图 4是本发明实施例四提供的一种通信***示意图。 具体实施方式 本发明实施例提供一种资源分配方法、 接入网设备及通信***, 通过 调整终端上行数据的资源调度算法, 有利于降低终端的硬件成本。 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. By adjusting a resource scheduling algorithm for uplink data of a terminal, the hardware cost of the terminal is reduced.
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。 实施例一、 The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention. Embodiment 1
请参见图 1, 本发明实施例一的一种资源分配方法, 可以包括: Referring to FIG. 1, a resource allocation method according to Embodiment 1 of the present invention may include:
110、 获取处于第一***的终端当前的发射功率, 该终端接入的小区使 用第一上行频段。 110. Acquire a current transmit power of the terminal in the first system, where the cell accessed by the terminal uses the first uplink frequency band.
在实际应用中, 可以通过多种方式获取终端当前的发射功率, 例如可 以根据终端的最大发射功率 (Pmax )和终端上报的功率余量(PHR, Power Head Room ), 计算终端当前的发射功率 (Pmax - PHR ), 其中 PHR是指发射 功率与最大功率的差值。 In a practical application, the current transmit power of the terminal can be obtained in multiple manners. For example, 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.
120、 判断上述获取的发射功率是否大于预设的第一功率阔值, 若是,
执行步骤 130; 若否, 可执行步骤 140。 120. Determine whether the obtained transmit power is greater than a preset first power threshold, and if so, Step 130 is performed; if no, step 140 can be performed.
可以理解, 同等条件下终端的发射功率越大, 对在相邻频段传输的信 号的干扰通常也就越大。 在实际应用中, 可以根据需要来预设第一功率阔 值的大小, 例如可以将第一功率阔值的大小预设为 20dBm。 It can be understood that the greater the transmission power of the terminal under the same conditions, the greater the interference to the signals transmitted in the adjacent frequency bands. In an actual application, 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.
130、 为终端的上行数据分配频率远离第二***使用的第二频段的上行 资源块, 其中, 第二频段与第一上行频段的频率间隔满足预设的频率间隔 条件。 130. 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.
其中, 终端接入的小区可称当前小区, 相应的, 终端接入的无线通信 ***可称当前***。 第二***与第一***可采用不同的制式, 第二频段与 上述终端接入的小区的上行工作频段(第一上行频段) 的频率间隔如果满 足预设的频率间隔条件, 则产生较大干扰的可能性也比较大, 在这种情况 下, 可以为终端的上行数据分配频率远离第二频段的上行资源块。 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. In this case, the uplink data of the terminal can be allocated an uplink resource block whose frequency is far from the second frequency band.
具体的, 第二频段与第一上行频段的频率间隔满足预设的频率间隔条 件的确定方式例如可以是: 通过判断第二频段与第一上行频段的频率间隔 是否小于预设的第一频率间隔阔值, 来确定第二频段与第一上行频段的频 率间隔是否满足预设的频率间隔条件。 若第二频段与第一上行频段的频率 间隔小于该预设的第一频率间隔阔值, 则确定出第二频段与第一上行频段 的频率间隔满足预设的频率间隔条件, 否则, 确定出第二频段与第一上行 频段的频率间隔不满足预设的频率间隔条件。 Specifically, 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.
可以理解, 两个频段的频率间隔的大小, 将直接关系到在两个频段上 传输的信号之间的干扰大小。 在实际应用中, 可以根据具体应用场景设定 第一频率间隔阔值的大小, 进而可以根据第二频段与当前小区的上行工作 频段的频率间隔是否小于该第一频率间隔阔值, 具体确定资源分配的策略。 It can be understood that 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. In a practical application, 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.
另一方面, 在实际应用中, 可以通过多种方式来实现为终端的上行数 据分配频率远离第二***使用的第二频段的上行资源块。 On the other hand, in practical applications, 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.
在一种应用场景下, 例如, 可以从频率值与第二频段的频率间隔最大 的可用的上行资源块开始, 依次判断上行资源块是否满足信噪比 (SNR, Signal Noise Ratio )判决条件, 其中, 信噪比判决条件为上行资源块的信噪 比大于预设的第一信噪比阔值; 选择最先满足上述信噪比判决条件的一个
或多个上行资源块, 将选择的上行资源块分配给上述终端。 In an application scenario, for example, starting from an available uplink resource block with the highest frequency interval and the frequency interval of the second frequency band, it may be sequentially determined whether the uplink resource block satisfies a signal to noise ratio (SNR) decision condition, where 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. Or a plurality of uplink resource blocks, and the selected uplink resource blocks are allocated to the foregoing terminal.
在另一种应用场景下, 例如, 可以根据具体情况先预设另外一个频率 间隔阔值(可以称为第二频率间隔阔值), 从频率值与第二频段的频率间隔 大于该预设的第二频率间隔阔值的可用的上行资源块中, 选择满足上述信 噪比判决条件的一个或多个上行资源块, 将选择的上行资源块分配给上述 终端。 In another application scenario, for example, 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 In 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.
再一方面, 可以才艮据需要设定第一信噪比阔值的大小。 On the other hand, the size of the first signal to noise ratio threshold can be set as needed.
另外, 关于上行资源块分配, 可以通过相关信令, 将为终端的上行数 据分配的上行资源块的时域和频域位置通知终端, 终端在为其分配的上行 资源块传输上行数据。 In addition, regarding the uplink resource block allocation, 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.
上述资源分配的策略可以实现终端传输上行数据的频率和第二***使 用的第二频段的频率间隔尽量的远, 也就有利于减小或避免终端传输上行 数据与第二***使用的第二频段上传输信号之间的相互干扰。 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.
140、 按照现有流程为终端的上行数据分配上行资源块。 140. Allocate an uplink resource block for the uplink data of the terminal according to an existing process.
具体的, 本步骤中可以为终端的上行数据分配信噪比大于预设的第一 信噪比阔值的一个或多个上行资源块。 Specifically, in this step, 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.
当然, 在为终端的上行数据分配上行资源块时, 还可以同时参考其它 多个相关参数来进行分配。 Of course, when allocating uplink resource blocks for the uplink data of the terminal, it is also possible to perform allocation by referring to other multiple related parameters at the same time.
需要说明的是, 本发明实施例中的第一***和第二***可以是分别采 用如下任意两个制式的通信***: PHS、 LTE、 全球移动通信***(GSM, Global System for Mobile communication )、 码分多址接入 ( CDMA, Code Division Multiple Access )、第三代移动通信*** ( 3G, 3rd Generation Mobile communication )、 Wimax、 WiFi, 本发明实施例不限于上述举例。 It should be noted that 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.
需要说明的是, 上述步骤可以在通信***的接入网设备上具体实施, 上述接入网设备可以是基站 (LTE***中的基站可以称为增强型基站)、 基 站控制器、 接入点或通信***中其它具有等同或相似功能的设备, 终端可 以是中继站(RS, Relay Station )、 用户设备(例如手机)、 或其它具有等同 或相似功能的接收设备, 本发明实施例不做限定。 It should be noted that the foregoing steps may be specifically implemented on an access network device of a communication system, where 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.
由上述技术方案可以看出, 本发明实施例获取并判断终端当前的发射
功率是否大于某一设定阔值, 在终端的发射功率大于某一设定阔值时, 调 整资源分配的策略, 尽可能为终端的上行数据分配频率远离由其它制式系 统占用的相邻频段的上行资源块, 有利于减小相邻***相互间的干扰; 由 于是通过调整资源分配策略来解决同邻频干扰问题, 也就可以不需要终端 选用性能很高的硬件滤波器, 相比较现有技术而言, 可以降低终端的硬件 成本。 It can be seen from the above technical solution that 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.
实施例二、 Embodiment 2
为便于更好的理解本发明实施例提供的技术方案,下面以*** A占用频 段 al、 *** B占用频段 bl (其中, *** A和*** B为不同制式的无线通信系 统, 频段 al和频段 bl相邻), *** A的基站根据终端当前的发射功率大小, 灵活进行资源分配的过程为例, 进行进一步详细的描述。 In order to better understand the technical solution provided by the embodiment of the present invention, the system A occupies the frequency band a1, and 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.
请参见图 2, 本发明实施例二的一种资源分配方法, 可以包括: Referring to FIG. 2, a resource allocation method according to Embodiment 2 of the present invention may include:
201、 基站获取终端当前的发射功率。 201. The base station acquires a current transmit power of the terminal.
其中, 基站获取终端当前发射功率的方式可以是多种多样的。 The manner in which the base station obtains the current transmit power of the terminal may be various.
在一种应用场景下, 在每个子帧, 终端都可以实时的上报当前的 PHR, 基站可以根据终端的最大发射功率 Pmax和终端当前上报的 PHR,获取到终端 当前的发射功率 (终端当前的发射功率=?皿- PHR )。 In an application scenario, the terminal can report the current PHR in real time in each subframe. The base station can obtain the current transmit power of the terminal according to the maximum transmit power P max of the terminal and the PHR currently reported by the terminal. Transmit power = ? dish - PHR ).
202、 基站判断获取的发射功率是否大于预设的功率阔值 Wl, 若是, 进入步骤 203, 若否, 进入步骤 205。 202. 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.
其中, 在同等条件下, 终端的发射功率越大, 对在相邻频段传输的信 号的干扰通常也就越大, 因此基站可以根据需要预设功率阔值 W1的大小, 针对终端当前的发射功率与预设的功率阔值 W1的大小关系, 灵活的选择不 同的资源分配策略。 Among them, under the same conditions, the greater the transmission power of the terminal, the greater the interference to the signals transmitted in the adjacent frequency bands. Therefore, 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.
在实际应用中, 基站可以根据不同的应用场景, 灵活的调整其预设的 功率阔值 W1的大小, 以满足不同的场景需要。 In actual applications, the base station can flexibly adjust the size of its preset power threshold W1 according to different application scenarios to meet different scenarios.
举例来说, 若终端的发射功率范围是 -45dBm ~ 25dBm, 基站预设的功 率阔值 W1的大小可以是 15dBm、 20dBm、 22dBm或其它值, 此处不做限定。 For example, if the transmit power of the terminal is in the range of -45 dBm to 25 dBm, 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.
203、 基站判断频段 bl与终端接入小区的上行工作频段的频率间隔是否
小于预设的频率间隔阔值 Fl, 若是, 执行步骤 204、 若否, 执行步骤 205。 可以理解, 当前小区的上行工作频段可以是*** A所占用的频段 al的部 分或者全部, 当*** B所占用的频段 bl与当前小区的上行工作频段的频率间 隔小于预设的频率间隔阔值 Fl, 就可以考虑相互干扰的问题。 基站可以根 据不同场景下的相互干扰情况, 灵活的预设频率间隔阔值 F1的大小, 针对 大小关系, 灵活的选择不同的资源分配策略。 203. 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.
需要说明的是, 步骤 203和步骤 202没有必然的顺序, 也可以先执行步 骤 203, 再执行步骤 202。 It should be noted that the 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.
进一步的, 若基站事先已经获知了频段 b 1和终端当前接入小区的频率 间隔与频率间隔阔值 F1的关系, 则步骤 203可以省略, 也就是说, 若基站判 断出获取的终端当前的发射功率大于预设的功率阔值 Wl, 且基站事先已经 获知频段 bl与终端接入小区的上行工作频段的频率间隔小于预设的频率间 隔阔值 Fl, 则直接执行步骤 204; 若基站事先已经获知频段 bl与终端接入小 Further, if the base station has previously learned the relationship between the frequency band b 1 and the frequency interval of the currently accessed cell of the terminal and the frequency interval threshold F1, 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
205。 205.
204、 若终端的发射功率大于预设的功率阔值 Wl, 且频段 bl与当前小 区的上行工作频段的频率间隔小于预设的频率间隔阔值 F1, 基站为终端的 上行数据分配频率尽量远离频段 b 1的上行资源块。 204. If the transmit power of the terminal is greater than the preset power threshold W1, and the frequency interval between the frequency band bl and the uplink working frequency band of the current cell is smaller than the preset frequency interval F1, the base station allocates the uplink data as far as possible from the frequency band. The uplink resource block of b 1.
举例来说, 基站预设的频率间隔阔值 F1的大小可以是 1ΜΗζ、 10MHz、 20MHz或者其它值, 此处不做限定。 For example, the size of the frequency interval F1 that is preset by the base station may be 1 ΜΗζ, 10 MHz, 20 MHz, or other values, which is not limited herein.
在实际应用中, 可以通过多种方式实现为终端的上行数据分配频率尽 量远离频段 b 1的上行资源块( RB, Resource Block ), 进而尽可能减少同邻 频干扰, 基站可以参考多个相关参数来进行分配, 例如基站可以同时参考: 待分配上行资源块(即可用的上行资源块)与频段 B1的频率间隔大小、 待 分配上行资源块当前的 SNR以及其它一个或多个相关参数。 In an actual application, 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. For the allocation, for example, 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.
其中, 基站能够比较实时的获得各个待分配上行资源块当前的 SNR, 基站可以进一步预设一个信噪比阔值 Sl, 通过将各个待分配上行资源块的 SNR与预设的信噪比阔值 S1进行比较, 确保为终端的上行数据分配到 SNR
大于预设的信噪比阔值 SI的可用的上行资源块, 以保障数据传输的质量, 减少误码率。 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.
在一种应用场景下, 基站可以为终端的上行数据优先分配频率尽量远 举例来说, 可以根据具体情况设定另一个频率间隔阔值 F2, 基站可以 In an application scenario, the base station may preferentially allocate the frequency of the uplink data of the terminal as far as possible. For example, another frequency interval threshold F2 may be set according to a specific situation, and the base station may
SNR阔值 S1的上行资源块, 并将选择的上行资源块分配给终端。 可以理解, 该方式实现算法相对简单, 资源分配过程的实现复杂度较低, 实现相对容 易。 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.
其中, 若有多个满足分配条件的待分配的上行资源块, 基站可以根据 实际需要选择其中的部分上行资源块分配给终端的上行数据。 可以理解的 是, 选择的上行资源块可以是一个或多个。 If there are multiple uplink resource blocks to be allocated that meet the allocation condition, 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.
又举例来说, 基站也可以优先从频率离频段 bl最远的可用的上行资源 块开始, 依次判断各个上行资源块的 SNR是否大于预设的 SNR阔值 Sl, 并 选择最先满足 SNR大于预设的 SNR阔值 S1的一个或多个上行资源块, 将选 择的上行资源块分配给终端。 可以理解, 该方式可以最大限度的为终端的 上行数据分配到频率离频段 bl最远的上行资源块, 有利于最大限度的降低 同邻频干扰。 For example, 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. It can be understood that 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.
205、 基站按照现有流程为终端的上行数据分配上行资源块。 205. The base station allocates an uplink resource block for the uplink data of the terminal according to an existing process.
执行本步骤的情况是: 若频段 bl与当前小区的上行工作频段的频率间 隔大于或等于预设的频率间隔阔值 Fl, 或终端当前的发射功率小于或等于 预设的功率阔值 Wl。 本步骤中, 基站可以按照现有流程或方式, 根据各个 待分配资源块的 SNR的大小,为终端的上行数据分配 SNR尽量大的一个或多 个上行资源块, 而不需要考虑频率大小或频率间隔的问题。 The implementation of 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. In this step, 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.
当然, 基站也还可以同时参考其它参数进行资源分配。 Of course, the base station can also refer to other parameters for resource allocation at the same time.
进一步的, 基站可以利用相关信令, 将为终端的上行数据分配的上行 资源块的时域和频域位置通知终端。 Further, 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.
终端在获知基站为其上行数据分配的上行资源块的时域和频域位置 后, 利用为其上行数据分配的上行资源块, 传输上行数据。
基站可以按照上述方式, 根据实际情况的动态变化, 实时的选择相对 分配实时合理有效。 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.
为便于更好的理解本实施例的上述技术方案, 下面通过具体实例对本 发明实施例的技术方案做进一步详细的说明。 In order to facilitate a better understanding of the above technical solutions of the present embodiment, the technical solutions of the embodiments of the present invention are further described in detail below by way of specific examples.
举例来说, 假设上述*** A为 LTE***, 频段 al为 LTE UE BAND 1频段 ( UL: 1920 MHz ~ 1980 MHz; DL: 2110 MHz ~ 2170 MHz ), *** B为 PHS, 频段 bl的范围: 1884.5MHz ~ 1919.6MHz。 For example, suppose the above system A is an LTE system, 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.
下面以 LTE***的基站为接入 LTE***的终端分配资源的过程为例, 进 行说明。 其中, 以基站预设的功率阔值 Wl=20dBm、 频率间隔阔值 Fl=30MHz、 信噪比阔值 Sl=40dB为例。 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. For example, the power threshold Wl=20dBm preset by the base station, the frequency interval threshold Fl=30MHz, and the signal to noise ratio threshold Sl=40dB are taken as an example.
首先, 基站可以根据终端在当前子帧上报的 PHR, 结合终端的最大发 射功率 Pmax计算终端当前的发射功率。 First, 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.
当然, 基站也可以选择其它方式获取终端当前的发射功率, 此处不做 限定。 Of course, the base station may also select other methods to obtain the current transmit power of the terminal, which is not limited herein.
基站判断获取的终端当前的发射功率是否大于 Wl ( 20dBm )。 The base station determines whether the current transmit power of the obtained terminal is greater than Wl (20dBm).
若是, 且当前小区的上行工作频段为 1920 MHz - 1940 MHz ( ( 1920 MHz - 1919.6 MHz = 0.4 MHz ) < Fl ( 30MHz ) ), 即当前小区的上行工作频 段与 PHS占用的频段的频率间隔小于预设的频率间隔阔值 F1,基站可以在为 终端的上行数据分配频率尽量远离频段 bl ( 1919.6MHz ) 且 SNR大于 SI ( 40dB ) 的上行资源块。 If yes, and the current working frequency band of the current cell is 1920 MHz - 1940 MHz (( 1920 MHz - 1919.6 MHz = 0.4 MHz ) < Fl ( 30 MHz ) ), that is, the frequency interval between the uplink working frequency band of the current cell and the frequency band occupied by the PHS is smaller than the pre-pre- The frequency interval F1 is set, and 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).
举例来说, 基站可以优先从离频段 bl ( 1919.6MHz )最远的上行资源块 (即频率位于 1940 MHz的上行资源块)开始, 为终端的上行数据分配 SNR 大于 40dB的上行资源块。 For example, 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.
若当前小区的上行工作频段为 1960 MHz ~ 1980 MHz ( ( 1960 MHz - If the current working frequency band of the current cell is 1960 MHz ~ 1980 MHz ( (1960 MHz -
1919.6 MHz = 40.4 MHz ) >F1 ( 30MHz ) ), 即当前小区的上行工作频段与 待选的上行资源块的 SNR,为终端的上行数据分配 SNR尽量大的一个或多个 上行资源块。 当然, 基站也还可以同时参考其它参数进行资源分配。
若当前小区的上行工作频段为 1940 MHz ~ 1960 MHz, 即当前小区的上 行工作频段的频率下限与 PHS占用的频段的频率间隔小于预设的频率间隔 隔大于预设的频率间隔阔值 Fl, 此时, 基站可以灵活的选择上述两种资源 分配策略为终端的上行数据分配上行资源块。 1919.6 MHz = 40.4 MHz) >F1 (30MHz)), that is, the SNR of the uplink working frequency band of the current cell and the uplink resource block to be selected, and one or more uplink resource blocks whose SNR is as large as possible for the uplink data of the terminal. Of course, 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.
基站可以进一步利用相关信令, 将为终端的上行数据分配的上行资源 块的时域和频域位置通知终端。 终端在获知基站为其上行数据分配的上行 资源块的时域和频域位置后, 利用为其上行数据分配的上行资源块, 传输 上行数据。 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.
基站可以按照上述方式, 对应每一个子帧, 选择相对合理的资源分配 策略为各个终端的上行数据分配的上行资源块(RB, Resource Block ), 以 保证资源分配实时合理有效。 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.
举例来说, 在每一个子帧, 基站都可以按照上述方式, 选择相对合理 的资源分配策略, 为各个终端使用的可用于承载终端的上行数据的物理上 行共享信道(PUSCH, Physical uplink shared channel )分配资源块, 以保证 资源分配实时合理有效, 尽可能减少同邻频干扰。 For example, in each subframe, 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.
可以理解, 上述*** A和上述*** B可以是分别采用如下任意两种制式 的***: LTE、 PHS , GSM, CDMA, 3G、 Wimax、 WiFi, 且不限于上述举 例。 It can be understood that 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.
需要说明的是, 本实施例是以基站根据不同的情况, 选择不同的资源 分配策略为终端分配资源块为例进行说明的, 当然上述基站也可以是通信 ***中其它具有等同或相似功能的设备。 It should be noted that, in this embodiment, 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. .
由上述技术方案可以看出, 本实施例基站获取并判断终端的发射功率 是否大于某一设定阔值, 在终端的发射功率大于某一设定阔值时, 基站调 整资源分配的策略, 尽可能为终端的上行数据分配频率远离由其它制式系 统占用的相邻频段的上行资源块, 有利于减小相互间的干扰; 由于是基站 通过调整资源分配策略来解决同邻频干扰问题、 终端可以不需要选择高性 能的滤波器, 相比较现有技术而言, 有利于降低终端的硬件成本。 It can be seen from the foregoing technical solution that, in this embodiment, the base station obtains and determines whether the 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 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.
进一步的, 基站可以根据具体情况, 灵活的选择对应的资源分配策略
为终端分配资源块, 能够适用于多种应用场景。 Further, 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.
为便于更好的实施本发明的技术方案, 本发明实施例中还提供一种接 入网设备。 实施例三、 In order to facilitate the implementation of the technical solution of the present invention, an access network device is further provided in the embodiment of the present invention. Embodiment 3
请参见图 3, 本发明实施例三的一种接入网设备 300, 可以包括: 获取 模块 310、 判断模块 320、 资源分配模块 330。 Referring to FIG. 3, an access network device 300 according to Embodiment 3 of the present invention may include: an obtaining module 310, a determining module 320, and a resource allocating module 330.
其中, 获取模块 310, 用于获取处于第一***的终端当前的发射功率, 该终端接入的小区使用第一上行频段。 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.
在实际应用中, 获取模块 310可以通过多种方式来获取终端当前的发射 功率, 例如可以根据终端的最大发射功率(Pmax )和终端上报的 PHR, 计算 终端当前的发射功率。 In an actual application, the acquiring module 310 can obtain the current transmit power of the terminal in multiple manners. For example, 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.
判断模块 320, 用于判断获取模块 310获取的发射功率是否大于预设的 第一功率阔值。 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.
可以理解, 同等条件下终端的发射功率越大, 对在相邻频段传输的信 号的干扰通常也就越大。 在实际应用中, 可以根据需要来预设第一功率阔 值的大小, 例如可以将第一功率阔值的大小预设为 20dBm。 It can be understood that the greater the transmission power of the terminal under the same conditions, the greater the interference to the signals transmitted in the adjacent frequency bands. In an actual application, 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.
资源分配模块 330, 用于在判断模块 320判断出获取模块 310获取的发射 功率大于预设的第一功率阔值时, 为上述终端的上行数据分配频率远离第 二***使用的第二频段的上行资源块, 其中, 第二频段与第一上行频段的 频率间隔满足预设的频率间隔条件。 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.
在一种应用场景下, 接入网设备 300还可以包括: In an application scenario, the access network device 300 may further include:
确定模块, 用于通过判断第二频段与第一上行频段的频率间隔是否小 于预设的第一频率间隔阔值, 确定第二频段与第一上行频段的频率间隔是 否满足预设的频率间隔条件。 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 .
具体的, 若第二频段与第一上行频段的频率间隔小于该预设的第一频 率间隔阔值, 则确定出第二频段与第一上行频段的频率间隔满足预设的频 率间隔条件, 否则, 确定出第二频段与第一上行频段的频率间隔不满足预 设的频率间隔条件。 Specifically, if the frequency interval between the second frequency band and the first uplink frequency band is smaller than the preset first frequency interval, 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.
在实际应用中, 资源分配模块 330可以通过多种方式来实现为终端的上
行数据分配频率远离第二***使用的第二频段的上行资源块。 In an actual application, 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.
在一种应用场景下, 资源分配模块 330可以包括: In an application scenario, the resource allocation module 330 can include:
第一子模块, 用于从频率值与第二频段的间隔最大的可用的上行资源 块开始, 依次判断上行资源块是否满足信噪比判决条件, 该信噪比判决条 件为上行资源块的信噪比大于预设的第一信噪比阔值; 选择最先满足该信 噪比判决条件的一个或多个上行资源块。 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.
第二子模块, 用于将第一子模块选择的上行资源块分配给上述终端。 在一种应用场景下, 资源分配模块 330可以包括: And a second submodule, configured to allocate an uplink resource block selected by the first submodule to the terminal. In an application scenario, the resource allocation module 330 can include:
第三子模块, 用于从频率值与第二频段的频率间隔大于预设的第二频 率间隔阔值的可用的上行资源块中, 选择满足信噪比判决条件的一个或多 个上行资源块, 该信噪比判决条件为上行资源块的信噪比大于预设的第一 信噪比阔值; 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;
第四子模块, 用于将第三子模块选择的上行资源块分配给上述终端。 资源分配模块 330还可以用于, 在判断模块 320判断出获取模块 310获取 的发射功率小于预设的第一功率阔值时, 为上述终端的上行数据分配 SNR 尽量大的上行资源块。 And a fourth submodule, configured to allocate an uplink resource block selected by the third submodule to the terminal. 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.
进一步的, 资源分配模块 330可以根据实际情况的动态变化, 实时的调 整相对合理的资源分配策略为终端的上行数据分配的上行资源块, 以保证 资源分配实时合理有效。 Further, 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.
在一种应用场景下, 资源分配模块 330还可以用于, 在判断模块 320判 断出获取模块 310获取的发射功率小于或等于预设的第一功率阔值, 或在第 二频段与第一上行频段的频率间隔不满足预设的频率间隔条件时, 为终端 的上行数据分配信噪比大于第一信噪比阔值的上行资源块。 In an application scenario, 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. When the frequency interval of the frequency band does not meet the preset frequency interval condition, 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.
进一步的, 接入网设备 300还可以包括: Further, the access network device 300 may further include:
通知模块, 用于通过相关信令, 将资源分配模块 330为上述终端的上行 数据分配的上行资源块的时域和频域位置通知上述终端。 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.
终端在获知基站为其上行数据分配的上行资源块的时域和频域位置 后, 利用为其上行数据分配的上行资源块, 传输上行数据。 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.
需要说明的是, 第一***和第二***可以是分别采用不同的制式的任
意无线通信***, 例如, 第一***和第二***可以是分别采用如下任意两 个制式的***: PHS、 LTE、 GSM, CDMA, 3G、 Wimax、 WiFi, 且本发明 实施例不限于上述举例。 It should be noted that 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.
需要说明的是, 本实例接入网设备 300具体可以是基站(LTE***中的 基站可以称为增强型基站)、 基站控制器、 接入点或通信***中其它具有等 同或相似功能的设备, 本实例终端可以是用户设备、 中继站或其它具有等 同或相似功能的接收设备, 本实施例不做限定。 It should be noted that 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.
可以理解是的, 本实施例的接入网设备 300可以如实施例二中的基站, 其各个功能模块的功能可以根据上述方法实施例中的方法具体实现, 其具 体实现过程可参照上述实施例中的相关描述, 此处不再赘述。 It can be understood that 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.
由上可见, 本实施例接入网设备 300获取并判断终端当前的发射功率是 否大于某一设定阔值, 在终端的发射功率大于某一设定阔值时, 接入网设 备 300调整资源分配的策略, 尽可能为终端的上行数据分配频率远离由其它 制式***占用的相邻频段的上行资源块, 有利于减小或避免相互间的干扰; 由于是接入网设备 300通过调整资源分配策略来解决同邻频干扰问题、 终端 可以不需要选择高性能的滤波器, 相比较现有技术而言, 有利于降低终端 的硬件成本。 It can be seen that, in the embodiment, 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, as far as possible, 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.
进一步的, 接入网设备 300可以根据具体情况, 灵活的选择对应的资源 分配策略为终端分配资源块, 能够适用于多种应用场景。 Further, 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.
进一步的, 本发明实施例中还提供一种通信***, 可以包括: 接入网 设备 300、 以及使用接入网设备 300分配的上行资源块的终端。 Further, 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.
为了便于更好的实施本发明的技术方案, 本发明实施例中还提供一种 通信***。 实施例四、 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
请参见图 4, 本发明实施例四的一种通信***, 可以包括: 接入网设备 410和终端 420, 接入网设备 410和终端 420以可通信方式数据连接。 Referring to FIG. 4, a communication system according to Embodiment 4 of the present invention 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.
其中, 接入网设备 410, 用于获取处于第一***的终端 420当前的发射 功率, 终端 420接入的小区使用第一上行频段; 判断获取的发射功率是否大 于预设的第一功率阔值; 若判断的结果为获取的发射功率大于预设的第一
功率阔值, 为终端 420的上行数据分配频率远离第二***使用的第二频段的 上行资源块, 其中, 第二频段与第一上行频段的频率间隔满足预设的频率 间隔条件; 将为终端 420的上行数据分配的上行资源块的时域和频域位置通 知终端 420。 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.
终端 420, 用于使用接入网设备 410为其分配的上行资源块传输上行数 据。 The terminal 420 is configured to use the access network device 410 to transmit uplink data for the allocated uplink resource block.
接入网设备 410可以按照上述方式, 根据实际情况的动态变化, 实时的 保证资源分配实时合理有效。 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.
可以理解, 第一***和第二***可以是分别采用如下任意两个制式的 ***: PHS、 LTE、 GSM, CDMA, 3G、 Wimax、 WiFi, 本发明不限于上述 举例。 It is to be understood that 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 the present invention is not limited to the above examples.
举例来说, 接入网设备 410可以为长期演进***的基站, 第二***可以 为个人手持式电话***。第一上行频段例如可以为 1920 MHz ~ 1940 MHz或 1940 ~ 1960 MHz。 For example, 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.
可以理解是的, 本实施例的接入网设备 410可以是如实施例三中的接入 网设备 300, 其各个功能模块的功能可以根据上述方案实施例中的方法具体 实现, 其具体实现过程可参照上述实施例中的相关描述, 此处不再赘述。 It can be understood that 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.
需要说明的是, 对于前述的各方法实施例, 为了简单描述, 故将其都 表述为一系列的动作组合, 但是本领域技术人员应该知悉, 本发明并不受 所描述的动作顺序的限制, 因为依据本发明, 某些步骤可以采用其他顺 序或者同时进行。 其次, 本领域技术人员也应该知悉, 说明书中所描述 的实施例均属于优选实施例, 所涉及的动作和模块并不一定是本发明所 必须的。 It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should understand that the present invention is not limited by the described action sequence. Because certain steps may be performed in other sequences or concurrently in accordance with the present invention. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.
在上述实施例中, 对各个实施例的描述都各有侧重, 某个实施例中 没有详述的部分, 可以参见其他实施例的相关描述。 In the above embodiments, the descriptions of the various embodiments are different, and the parts that are not detailed in an embodiment can be referred to the related descriptions of other embodiments.
综上, 本发明实施例中接入网设备获取并判断终端当前的发射功率是 否大于某一设定阔值, 在终端的发射功率大于某一设定阔值时, 接入网设 备调整资源分配的策略, 尽可能为终端的上行数据分配频率远离由其它制 式***占用的相邻频段的上行资源块, 有利于减小或避免相互间的干扰;
由于是接入网设备通过调整资源分配策略来解决同邻频干扰问题、 终端可 以不需要选择高性能的滤波器, 相比较现有技术而言, 有利于降低终端的 硬件成本。 In summary, in the embodiment of the present invention, the access network device 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 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.
进一步的, 接入网设备可以根据具体情况, 灵活的选择对应的资源分 配策略为终端分配资源块, 能够适用于多种应用场景。 Further, 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.
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流 程, 是可以通过计算机程序来指令相关的硬件来完成, 上述的程序可存储 于计算机可读取存储介质中, 该程序在执行时, 可包括如上述各方法的实 施例的流程。 其中, 上述的存储介质可为磁碟、 光盘、 只读存储记忆体 A person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by a computer program to instruct related hardware, and the above program can be stored in a computer readable storage medium, and the program is executed. At the time, the flow of the embodiment of each method as described above may be included. The above storage medium may be a magnetic disk, an optical disk, or a read-only memory.
( Read-Only Memory, ROM )或随机存储记忆体 ( Random Access Memory, RAM )等。 (Read-Only Memory, ROM) or Random Access Memory (RAM).
以上对本发明实施例所提供的一种资源分配方法、 接入网设备及通信 进行了阐述, 以上实施例的说明只是用于帮助理解本发明的方法及其核心 思想; 同时, 对于本领域的一般技术人员, 依据本发明的思想, 在具体实 施方式及应用范围上均会有改变之处, 综上, 本说明书内容不应理解为对 本发明的限制。
The foregoing describes a resource allocation method, an access network device, and a communication provided by the embodiments of the present invention. The foregoing description of the embodiments is only used to help understand the method and core ideas of the present invention. The present invention is not limited by the scope of the present invention, and the details of the present invention are not limited by the scope of the present invention.
Claims
1、 一种资源分配方法, 其特征在于, 包括: A resource allocation method, characterized in that it comprises:
获取处于第一***的终端当前的发射功率, 所述终端接入的小区使用 第一上行频段; Obtaining a current transmit power of the terminal in the first system, where the cell accessed by the terminal uses the first uplink frequency band;
判断所述获取的发射功率是否大于预设的第一功率阔值; Determining whether the acquired transmit power is greater than a preset first power threshold;
若判断的结果为所述获取的发射功率大于预设的第一功率阔值, 为所 述终端的上行数据分配频率远离第二***使用的第二频段的上行资源块, 其中, 第二频段与第一上行频段的频率间隔满足预设的频率间隔条件。 If the result of the determination is that the acquired transmit power is greater than the preset first power threshold, 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.
2、 根据权利要求 1所述的方法, 其特征在于, 还包括: 确定第二频段 与第一上行频段的频率间隔是否满足预设的频率间隔条件的步骤, 具体包 括: The method of claim 1, further comprising: determining whether the frequency interval between the second frequency band and the first uplink frequency band meets a preset frequency interval condition, specifically:
通过判断第二频段与第一上行频段的频率间隔是否小于预设的第一频 率间隔阔值, 确定第二频段与第一上行频段的频率间隔是否满足预设的频 率间隔条件。 And determining whether the frequency interval between the second frequency band and the first uplink frequency band meets a preset frequency interval condition by determining whether the frequency interval between the second frequency band and the first uplink frequency band is smaller than a preset first frequency interval threshold.
3、 根据权利要求 2所述的方法, 其特征在于, 为所述终端的上行数据 分配频率远离第二***使用的第二频段的上行资源块, 包括: The method according to claim 2, wherein the uplink data of the terminal is allocated with an uplink resource block of a second frequency band used by the second system, including:
从频率值与第二频段的频率间隔最大的可用的上行资源块开始, 依次 判断所述上行资源块是否满足信噪比判决条件, 所述信噪比判决条件为上 行资源块的信噪比大于预设的第一信噪比阔值; Starting from an available uplink resource block with the highest frequency interval and the frequency interval of the second frequency band, determining whether the uplink resource block satisfies a signal to noise ratio decision condition, where 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;
选择最先满足所述信噪比判决条件的一个或多个上行资源块, 将选择 的上行资源块分配给所述终端; Selecting one or more uplink resource blocks that satisfy the SNR decision condition first, and allocating the selected uplink resource block to the terminal;
或 Or
从频率值与第二频段的频率间隔大于预设的第二频率间隔阔值的可用 的上行资源块中, 选择满足所述信噪比判决条件的一个或多个上行资源块, 将选择的上行资源块分配给所述终端。 Selecting one or more uplink resource blocks that satisfy the SNR decision condition from an available uplink resource block whose frequency value is equal to a frequency interval of the second frequency band greater than a preset second frequency interval threshold, and the selected uplink is selected. A resource block is allocated to the terminal.
4、 根据权利要求 1至 3任一项所述的方法, 其特征在于, 第一***为长 期演进***, 所述第二***与所述第一***是制式不同的通信***。 The method according to any one of claims 1 to 3, wherein the first system is a long-term evolution system, and the second system and the first system are different communication systems.
5、 根据权利要求 4所述的方法, 其特征在于, 为所述终端的上行数据 分配频率远离第二***使用的第二频段的上行资源块, 包括: 为所述终端所使用的物理上行共享信道分配频率远离第二***使用的 第二频段的上行资源块, 其中, 所述第一上行频段为 1920 MHz ~ 1940 MHz 或 1940 ~ 1960 MHz。 The method according to claim 4, wherein: the uplink data of the terminal is allocated to the uplink resource block of the second frequency band used by the second system, and the method includes: The uplink uplink resource block of the second frequency band used by the second system is allocated to the physical uplink shared channel used by the terminal, where the first uplink frequency band is 1920 MHz ~ 1940 MHz or 1940 ~ 1960 MHz.
6、 一种接入网设备, 其特征在于, 包括: 6. An access network device, comprising:
获取模块, 用于获取处于第一***的终端当前的发射功率, 所述终端 接入的小区使用第一上行频段; 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;
判断模块, 用于判断所述获取模块获取的发射功率是否大于预设的第 一功率阔值; a determining module, configured to determine whether a transmit power acquired by the acquiring module is greater than a preset first power threshold;
资源分配模块, 用于在所述判断模块判断出所述获取模块获取的发射 功率大于预设的第一功率阔值时, 为所述终端的上行数据分配频率远离第 二***使用的第二频段的上行资源块, 其中, 第二频段与第一上行频段的 频率间隔满足预设的频率间隔条件。 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.
7、 根据权利要求 6所述的接入网设备, 其特征在于, 还包括: 确定模块, 用于通过判断第二频段与第一上行频段的频率间隔是否小 于预设的第一频率间隔阔值, 确定第二频段与第一上行频段的频率间隔是 否满足预设的频率间隔条件。 The access network device according to claim 6, further comprising: a determining module, configured to determine whether a frequency interval between the second frequency band and the first uplink frequency band is smaller than a preset first frequency interval threshold And determining whether the frequency interval between the second frequency band and the first uplink frequency band meets a preset frequency interval condition.
8、 根据权利要求 7所述的接入网设备, 其特征在于, 8. The access network device of claim 7, wherein
所述资源分配模块包括: The resource allocation module includes:
第一子模块, 用于从频率值与第二频段的间隔最大的可用的上行资源 块开始, 依次判断所述上行资源块是否满足信噪比判决条件, 所述信噪比 判决条件为上行资源块的信噪比大于预设的第一信噪比阔值; 选择最先满 足所述信噪比判决条件的一个或多个上行资源块; 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 The signal to noise ratio of the block is greater than a preset first signal to noise ratio threshold; selecting one or more uplink resource blocks that first satisfy the signal to noise ratio decision condition;
第二子模块, 用于将所述第一子模块选择的上行资源块分配给所述终 端; a second submodule, configured to allocate an uplink resource block selected by the first submodule to the terminal;
或 Or
所述资源分配模块包括: The resource allocation module includes:
第三子模块, 用于从频率值与第二频段的频率间隔大于预设的第二频 率间隔阔值的可用的上行资源块中, 选择满足所述信噪比判决条件的一个 或多个上行资源块; 第四子模块, 用于将所述第三子模块选择的上行资源块分配给所述终 端。 a third submodule, configured to select one or more uplinks that satisfy the SNR decision condition from an available uplink resource block whose frequency value and the frequency interval of the second frequency band are greater than a preset second frequency interval threshold Resource block And a fourth submodule, configured to allocate an uplink resource block selected by the third submodule to the terminal.
9、 根据权利要求 6至 8任一项所述的接入网设备, 其特征在于, 所述接 入网设备为第一***中的基站设备, 所述第一***为长期演进***, 所述 第二***与所述第一***是制式不同的通信***。 The access network device according to any one of claims 6 to 8, wherein the access network device is a base station device in a first system, and the first system is a long term evolution system, The second system and the first system are different communication systems.
10、 一种通信***, 其特征在于, 包括: 根据权利要求 6至 9任一项所 述的接入网设备, 以及使用所述接入网设备分配的上行资源块的终端。 A communication system, comprising: an access network device according to any one of claims 6 to 9, and a terminal using an uplink resource block allocated by the access network device.
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