WO2012130139A1 - 子帧配置信息通知和子帧配置的方法、系统及设备 - Google Patents
子帧配置信息通知和子帧配置的方法、系统及设备 Download PDFInfo
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- WO2012130139A1 WO2012130139A1 PCT/CN2012/073191 CN2012073191W WO2012130139A1 WO 2012130139 A1 WO2012130139 A1 WO 2012130139A1 CN 2012073191 W CN2012073191 W CN 2012073191W WO 2012130139 A1 WO2012130139 A1 WO 2012130139A1
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- subframe
- network side
- side device
- information
- control signaling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
Definitions
- the present application claims a method, system and method for submitting a sub-frame configuration information notification and a sub-frame configuration to the Chinese Patent Office on March 29, 2011, the application number is 201110077308.2
- the present invention relates to the field of wireless communication technologies, and in particular, to a method, system and device for subframe configuration information notification and subframe configuration.
- Technology for the basic duplex mode of cellular systems TDD (Time Division Duplex) mode refers to the use of the same working frequency band on the uplink and downlink, and the uplink and downlink signals are transmitted at different time intervals.
- guard interval between the lines; FDD (Frequency Division Duplex) mode means that the uplink and downlink use different working bands, and can be performed on different frequency carriers at the same time. Transmission of line signals, protection bandwidth between uplink and downlink (Guard B And, GB ).
- a radio frame has a length of 10 ms, and includes 10 subframes of a special subframe and a regular subframe. Each subframe is Lms.
- the special subframe is divided into three subframes: DwPTS (Downlink Pilot Time Slot) for transmitting PSS (Primary Synchronization Signal), PDCCH (Physical Downlink Control Channel), PHICH (Physical HARQ Indication Channel), PCFICH (Physical Control Format Indication Channel), PDSCH (Physical Downlink Shared Channel), etc.
- DwPTS Downlink Pilot Time Slot
- PSS Primary Synchronization Signal
- PDCCH Physical Downlink Control Channel
- PHICH Physical HARQ Indication Channel
- PCFICH Physical Control Format Indication Channel
- PDSCH Physical Downlink Shared Channel
- the UpP Pilot (Uplink Pilot Time Slot) is used to transmit SRS (Sounding Reference Signal) and PRACH (Physical Random Access Channel). ) Wait.
- the regular subframe includes an uplink subframe and a downlink subframe, and is used for transmitting an uplink/downlink control channel and service data.
- two special subframes (located in subframes 1 and 6) or a special subframe (located in subframe 1) can be configured.
- Subframe 0 and subframe 5 and DwPTS subframes in special subframes are always used for downlink transmission.
- Subframe 2 and UpPTS subframes in special subframes are always used for uplink transmission. Other subframes can be configured as needed. For uplink transmission or downlink transmission.
- the uplink and downlink transmissions use the same frequency resource, and the uplink/downlink signals are transmitted on different subframes.
- TDD systems including 3G TD-SCDMA (Time Division Synchronous Code Division Multiple Access) system and 4G TD-LTE
- the division of the uplink and downlink subframes is static or semi-static.
- the proportion of the uplink and downlink subframes is determined and remains unchanged according to the cell type and the approximate service ratio in the network planning process. This is a relatively simple approach in the context of large coverage of macro cells, and is also more effective.
- more and more low-power base stations such as Pico cells and Home NodeBs are deployed to provide local small coverage. In such cells, the number of users is small, and The user service requirements vary greatly. Therefore, there is a dynamic change in the proportion of uplink and downlink services in the cell.
- the cross-slots of adjacent cells may be disturbed.
- the femto cell is used for the uplink signal reception, and then the two cells appear: the base station-base station is interfered, and the femto base station directly receives the Macro base station.
- the downlink signal will seriously affect the shield of the femto base station receiving the uplink signal of the L-UE (Local UE, local UE).
- the neighboring cells herein may be geographically adjacent cells (shown in Figure 1B) that use the same TDD carrier, or cells that are geographically overlapping or using adjacent TDD carriers (shown in Figure 1C).
- the embodiments of the present invention provide a method and a device for notifying a subframe configuration information, which can be used to obtain configuration information of a neighboring cell when the uplink and downlink traffic ratios of the cell are dynamically changed.
- the embodiments of the present invention provide a method, a system, and a device for configuring a subframe, which are used to solve the problem that the neighboring area interferes coexistence when the uplink and downlink service ratio requirements of the small area in the prior art are dynamically changed.
- the network side device #> determines the subframe type information according to the subframe in the radio frame configured by the cell;
- the network side device sends control signaling including subframe type information to the network side device of the neighboring cell through the air interface.
- the network side device receives, by the air interface, the control signaling including the neighboring cell subframe type information of the network side device of the neighboring cell, where the subframe type information is a subframe in the configured wireless frame according to the network side device of the neighboring cell. definite;
- the network side device configures a subframe in a radio frame of the local cell according to the neighbor cell subframe type information.
- An apparatus for notifying a subframe configuration information that is provided by the embodiment of the present invention includes:
- An information determining module configured to determine subframe type information according to a subframe in a radio frame configured by the cell
- a sending module configured to send, by using an air interface, a control message including subframe type information to a network side device of the neighboring cell Order.
- a processing module configured to receive, by using an air interface, control signaling, including a neighboring cell subframe type information, of the network side device of the neighboring cell, where the subframe type information is a network side device of the neighboring cell according to the configured wireless frame Sub-frame determined;
- a configuration module configured to configure, according to the neighbor cell subframe type information, a subframe in a radio frame of the local cell.
- a system for configuring a subframe according to an embodiment of the present invention includes:
- a network side device configured to determine subframe type information according to a subframe in a radio frame configured by the cell, and send, by using an air interface, control signaling including subframe type information to a network side device of the neighboring cell;
- a network side device that receives the control signaling, configured to receive, by using an air interface, a control signaling that includes a neighboring cell subframe type information of a network side device of a neighboring cell, and according to the neighboring cell subframe type information, to the local cell
- the subframes in the radio frame are configured.
- the embodiment of the present invention sends the control signaling of the local cell to the neighboring cell through the air interface, so that when the uplink and downlink service proportion requirements of the cell are dynamically changed, the configuration information of the neighboring cell can be acquired, and the system performance is improved; further, The update speed of the subframe configuration information is improved to support more dynamic subframe allocation and corresponding interference avoidance operation, and is particularly effective in a scenario where there is no network interface between cell base stations or a network interface delay is large.
- the network side device determines the type of each subframe in the radio frame of the local cell according to the received control signaling including the subframe type information, and configures the subframe in the radio frame of the local cell to implement the neighboring cell.
- Thousands of disturbances coexist.
- FIG. 1A is a schematic diagram of a frame structure of a TD-LTE system
- FIG. 1B is a schematic diagram of cross-slot interference when using the same TDD carrier
- Figure 1C is a schematic diagram of cross-slot interference when using adjacent TDD carriers
- FIG. 2 is a schematic structural diagram of a system for configuring a subframe according to an embodiment of the present invention
- FIG. 3 is a schematic structural diagram of a first network side device according to an embodiment of the present invention.
- FIG. 4 is a schematic structural diagram of a second network side device according to an embodiment of the present invention.
- FIG. 5 is a schematic flowchart of a method for transmitting information according to an embodiment of the present invention.
- FIG. 6 is a schematic flowchart of a method for configuring a subframe according to an embodiment of the present invention.
- the network side device determines the subframe type information according to the subframe in the radio frame configured by the cell in the embodiment of the present invention; the network side device sends the control message including the subframe type information to the network side device of the neighboring cell through the air interface. make. Due to this In the embodiment of the present invention, the control signaling of the local cell is sent to the neighboring cell through the air interface, so that when the uplink and downlink traffic ratio requirements of the cell are dynamically changed, the configuration information of the neighboring cell can be acquired, and the system performance is improved.
- the network side device configures the subframe in the radio frame of the local cell according to the control signaling that includes the neighboring cell subframe type information of the network side device from the neighboring cell, where the subframe type information is neighbor.
- the network side device of the cell is determined according to the subframe in the configured radio frame.
- the network side device determines the type of each subframe in the radio frame of the local cell according to the received control signaling including the subframe type information, and configures the subframe in the radio frame of the local cell to implement the neighboring cell. Thousands of 4 coexist.
- the embodiments of the present invention can be applied to a TDD system (such as a TD-LTE system), and can also be applied to other systems that need to dynamically adjust uplink and downlink configurations of a subframe, such as a TD-SCDMA system and its subsequent evolution system, WiMAX ( Worldwide Interoperability for Microwave Access, Wave Access Global Interoperability) systems and their subsequent evolution systems.
- a TDD system such as a TD-LTE system
- WiMAX Worldwide Interoperability for Microwave Access, Wave Access Global Interoperability
- the system for configuring a subframe in the embodiment of the present invention includes: a first network side device 10 and a second network side device 20.
- the first network side device 10 is configured to determine, according to the subframe in the radio frame configured by the local cell, the subframe type information, and send the control signaling including the subframe type information to the network side device of the neighboring cell through the air interface.
- the second network side device 20, which receives the control signaling is configured to receive, by using an air interface, control signaling including neighboring cell subframe type information of the network side device of the neighboring cell, and wirelessly, according to the neighboring cell subframe type information
- the subframes in the frame are configured.
- the neighboring cell here is an intra-frequency neighboring cell or an inter-frequency neighboring cell; the local cell and the neighboring cell may be in the same TDD network or different TDD networks.
- a specific time-frequency position of some specific subframes may be preset in a radio frame, and the first network-side device 10 may send control signaling by using a specific time-frequency position of a specific subframe in the radio frame. Which of the time-frequency positions of the specific subframes can be specified as the specific time-frequency position of the specific subframe can be specified in the protocol or the first network-side device 10 can be notified by the upper layer.
- the second network side device 20 receives the control signaling by using a specific time-frequency position of a specific subframe in the radio frame.
- the first network side device 10 transmits control signaling through a specific time-frequency position of a specific subframe in a radio frame, and several types are listed below.
- Manner 1 The first network side device 10 sends control signaling through a system broadcast, for example, through a cell system broadcast.
- MIB Master Information Block
- SIB System Information Block
- control signaling can also be sent through a new system broadcast message.
- the first network side device 10 sends control signaling by using a subframe fixed for downlink transmission. For example, one or more of subframe 0, subframe 1, subframe 5, and subframe 6.
- the first network side device 10 sends control signaling by using a specific resource location of a downlink pilot time slot in a special subframe or a specific resource location of a protection time slot in a special subframe.
- Manner 4 The first network side device 10 sends control signaling by using a specific resource location of the downlink subframe.
- embodiments of the present invention are not limited to the foregoing four modes, and other embodiments capable of transmitting control signaling including subframe type information through an air interface are applicable to the embodiments of the present invention.
- the first network side device 10 transmits control signaling every N radio frame cycles through the air interface; where N is a positive integer. For example, if N is 5, the number of infinite frames can be calculated, and control signaling is sent once to the fifth radio frame; then it is cleared to continue the calculation.
- the specific number of N can be specified in the agreement or notified by the senior management as needed.
- the sender and the receiver need to be consistent regardless of the transmission method and the value of N. Specifically, it may be specified in the agreement or negotiated by the sender and the receiver or notified by the upper layer.
- the first network side device 10 transmits the transmission information of the resource carrying the control signaling to the second network side device 20, if it is determined by the sender and the receiver.
- the transmission information herein includes, but is not limited to, at least one of the following information:
- OFDM Orthogonal Frequency Division Multiplexing
- PRB Physical Resource block, physical resource block, resource information such as code channel.
- the transmission information is read through a network interface (for example, an OAM (Operation and Maintenance) interface); and the high-level signaling carrying the transmission information is directly read to obtain transmission information.
- a network interface for example, an OAM (Operation and Maintenance) interface
- OAM Operaation and Maintenance
- the second network side device 20 can perform downlink synchronization with the first network side device 10 before receiving the control signaling, and then read the system broadcast information of the neighboring cell, so as to know the information of the neighboring cell.
- the second network side device 20 can obtain control signaling when reading the system broadcast information of the neighboring cell. Otherwise, after reading the system broadcast information of the neighboring cell, the control signaling is received.
- the radio frame in the embodiment of the present invention includes three types of variable subframes with variable transmission directions and/or fixed subframes with fixed transmission directions. 1.
- the subframes in the radio frame are all variable subframes; 2.
- the subframes in the radio frame are all solid.
- the subframe in the radio frame has a variable subframe and a fixed subframe.
- Variable subframes can be dynamically configured as needed. For example, if the current period is the next uplink, it may become a downlink, and the fixed subframe is a subframe in which the transmission direction does not change.
- the first network side device 10 determines the subframe type information, and several are listed below.
- the first network side device 10 sets a first identifier of a corresponding bit in a type bitmap in a fixed time frame in a certain time length, and a corresponding bit position in the type bitmap in the variable time frame in the set time length.
- the second identifier, and the type bitmap is used as the subframe type information.
- the type bitmap may only represent the subframe type information of the fixed subframe in a certain length of time.
- subframe 0 subframe 1
- subframe 2 subframe 5
- subframe 6 and subframe 7 are fixed subframes.
- the first identifier uses "1" to indicate a fixed subframe
- the second identifier uses "0" to indicate a variable subframe, as shown in Table 1:
- the specific type bitmap is 1110011100. That is, the subframe type information is 1110011100.
- the second network side device 20 After receiving the 1110011100, the second network side device 20 knows the type of each subframe by using the subframe corresponding to each bit in the type bitmap and the meaning of the identifier corresponding to each bit.
- the type b it m ap may only represent the subframe type information of the variable subframe in a certain length of time.
- subframe 3 subframe 4
- subframe 8 subframe 9
- “1” means a fixed subframe
- "0” means a variable subframe, as shown in Table 2:
- the second network side device 20 After receiving the 0001100011, the second network side device 20 knows the type of each subframe according to the subframe corresponding to each bit in the type bitmap and the meaning of the identifier corresponding to each bit.
- the specific length of time can be specified in the agreement, or it can be notified by the senior management.
- the set duration can also be updated as needed.
- the specific type bitmap indicates which subframes, the subframes corresponding to each bit, and the meaning of each bit identifier can be specified in the protocol, and can also be notified by the upper layer.
- the first network side device 10 determines one according to the corresponding relationship between the configured type configuration mode and the first serial number.
- the first sequence number corresponding to the type configuration mode of the fixed subframe and the variable subframe in the fixed time length, and the determined first sequence number is used as the subframe type information.
- Table 3 assumes that the time length is 10ms (ie, one radio frame length), and subframe 3, subframe 4, subframe 8 and subframe 9 are variable subframes; subframe 0, subframe 1, subframe 2, subframe 5 Subframe 6 and subframe 7 are fixed subframes. According to Table 3, it can be determined that the first serial number is 1.
- the second network side device 20 after receiving the first sequence number 2, the second network side device 20 knows the type of each subframe according to Table 3.
- the correspondence between the type configuration mode and the first serial number may be specified in the protocol in advance, or may be notified by the upper layer.
- the correspondence between the configuration format and the serial number can also be updated as needed.
- the network interface Since it is not dynamically allocated, the network interface has already interacted with the uplink and downlink configuration information. Therefore, if a certain subframe is notified as a fixed subframe in the implementation, the transmission direction is the same as that indicated by the already notified uplink and downlink configuration information; if a certain subframe is notified as a variable subframe, the transmission direction is already notified. The meaning indicated by the uplink and downlink configuration information is irrelevant.
- the first network side device 10 can also place the transmission direction information in the control signaling.
- the transmission direction information indicates whether each subframe is an uplink transmission or a downlink transmission.
- the first network side device 10 may determine the transmission direction information according to the subframe in the radio frame configured by the cell.
- the first network side device 10 determines the transmission direction information, and several are listed below.
- the first network side device 10 sets a third identifier of a corresponding bit in the transmission direction bitmap of the fixed subframe in a certain length of time, and a fourth corresponding bit in the transmission direction bitmap in the set time length. Identify and use the transmission direction bitmap as the transmission direction information.
- the transmission direction of subframe 2, subframe 7, subframe 8, and subframe 9 is uplink.
- " ⁇ indicates that the transmission direction is uplink
- "0" indicates that the transmission direction is downlink, as shown in Table 4: 0 1 2 3 4 5 6 7 8 9 Transmission direction 0 0 1 0 0 0 0 1 1 1 Table 4
- the specific transmission direction bitmap is 0010000111.
- the second network side device 20 After receiving the 0010000111, the second network side device 20 knows the transmission direction of each subframe according to the meaning of the subframe corresponding to each bit in the transmission direction and the identifier corresponding to each bit.
- the specific length of time can be specified in the agreement, or it can be notified by the senior management.
- the set duration can also be updated as needed.
- the specific transmission direction bitmap indicates which subframes, subframes corresponding to each bit, and the meaning of each bit identifier can be specified in the protocol, and can also be notified by the upper layer.
- the second network side device 10 determines the second serial number corresponding to the transmission direction configuration format of the fixed subframe and the variable subframe in a certain time length according to the correspondence between the configuration format of the transmission direction and the second serial number, and determines The second serial number is used as the transmission direction information.
- the transmission direction of subframe 2, subframe 3, subframe 4, and subframe 7 is uplink; subframe 0, subframe 1, subframe 5, subframe 6, and sub-frame
- the transmission direction of frame 8 and subframe 9 is downlink. According to Table 5, it can be determined that the first serial number is 3.
- the second network side device 20 after receiving the first sequence number 3, the second network side device 20 knows the type of each subframe according to Table 5.
- the correspondence between the type configuration mode and the first serial number may be specified in the protocol in advance, or may be notified by the upper layer.
- the correspondence between the configuration format and the serial number can also be updated as needed.
- the first network side device 10 may send the transmission direction information and the subframe type information by using two different control signals.
- the transmission direction information and the subframe type information may also be placed in the same control signaling.
- the first network side device 10 sets both the transmission direction information and the subframe type information in the same control signaling, the first network side device 10 combines the transmission direction information and the subframe type information into configuration information, and sets the configuration information. Control In the signaling.
- the specific configuration information may be type bitmap+transmission direction bitmap; type bitmap+second sequence number; first sequence number + transmission direction bitmap; first sequence number + one of the second sequence numbers.
- the specific use can be specified in the agreement; it can also be notified by the senior management.
- the configuration information can be type bitmap+transmission direction bitmap
- the first half is the type bitmap
- the second half is the transmission direction bitmap
- the first half is the transmission direction bitmap
- the second half is the type bitmap
- the bitmap is mixed together.
- the subframe type information and the transmission direction information of each subframe may be directly notified to the neighboring cell by using more than one bit information.
- subframe 0, subframe 1, subframe 2, subframe 5, subframe 6 and subframe 7 are fixed subframes
- subframe 3, subframe 4, subframe 8 and subframe 9 are variable subframes "1" for fixed subframes, "0” for variable subframes
- subframe 2, subframe 7, subframes 8 and subframes 9 for transmission direction, subframe 0, sub-frames
- the transmission direction of frame 1, subframe 3, subframe 4, subframe 5, and subframe 6 is downlink, 1" indicates that the transmission direction is uplink, and "0" indicates that the transmission direction is downlink, as shown in Table 6:
- Table 6 The specific configuration information is 00000110100000011111.
- the second network side device 20 After receiving the 00000110100000011111, the second network side device 20 knows the type and the type of each subframe according to the meaning of the subframe corresponding to each bit in the type bitmap and the transmission direction bitmap and the identifier corresponding to each bit. The direction of transmission is gone.
- the network side device may also put one or more of the following information into the control signaling according to the requirement: the cell identifier of the local cell, the PLMN (Public Land Mobile Network) identifier and the neighbor of the local cell.
- the cell identity of the cell may also put one or more of the following information into the control signaling according to the requirement: the cell identifier of the local cell, the PLMN (Public Land Mobile Network) identifier and the neighbor of the local cell.
- the cell identity of the cell may be put one or more of the following information into the control signaling according to the requirement: the cell identifier of the local cell, the PLMN (Public Land Mobile Network) identifier and the neighbor of the local cell.
- the second network side device 20 determines the type of each subframe in the radio frame of the local cell according to the received control signaling including the subframe type information, and then configures the subframe in the radio frame of the local cell.
- the second network side device 20 can also determine whether the interference strength between the local cell and the neighboring cell transmitting the control signaling can be detected.
- the intensity of the disturbance here includes but is not limited to one of the following values:
- RSRP Reference signal received power
- RIP Receiveived Interference Power
- CQI Channel Quality Indicator
- RSRQ Reference Signal Received Quality
- the second network side device 20 When it is determined that the interference strength between the local cell and the neighboring cell that sends the control signaling cannot be detected, if the subframe to be configured is a variable subframe in the neighboring cell, the second network side device 20 does not use the subframe. Or lower the usage priority of the subframe.
- the second network side device 20 may configure the unused subframe as an MBSFN (MBSFN Multicast Broadcast Single Frequency Network) subframe or an ABS (Almost Blank Subframe) or an uplink sub-frame. Frames are not scheduled for uplink.
- MBSFN MBSFN Multicast Broadcast Single Frequency Network
- ABS Almost Blank Subframe
- the control signaling includes the transmission direction information, and determines that the interference strength between the local cell and the neighboring cell that sends the control signaling cannot be detected, if the subframe to be configured is a variable subframe in the neighboring cell, the second network
- the subframe type and the transmission direction that the side device 20 can configure are the same as the subframe type and the transmission direction of the same subframe identifier in the neighboring cell.
- the subframe 7 of the current cell may be configured to be the same transmission direction as the subframe 7 of the neighboring cell; and the subframe 8 of the local cell is configured to be associated with the neighboring cell.
- Frame 8 has the same transmission direction.
- the subframe to be configured is a fixed subframe in the neighboring cell
- the subframe type and transmission that the second network side device 20 can configure The direction is the same as the subframe type and the transmission direction of the same subframe identifier in the neighboring cell.
- the transmission direction of the fixed subframe can be determined according to preset information or uplink and downlink configuration information, if the transmission direction information is not included in the control signaling, the transmission direction of the fixed subframe can also be known.
- the control direction includes the transmission direction information, the transmission direction information in the control signaling is taken as the standard.
- the interference intensity is further compared with the threshold.
- the specific threshold setting can be specified in the agreement based on empirical values or simulation results or notified by the upper layer. Different interference strengths correspond to different thresholds.
- the second network side device 20 does not use the subframe or lowers the usage priority of the subframe.
- the specific manner of not using the subframe is the same as the manner in which the subframe is not used, and details are not described herein again.
- the second network side device 20 may configure the subframe in the radio frame of the local cell according to the default configuration information, or according to the unification of the network side.
- the configuration information is configured on the subframe in the radio frame of the local cell, or when the control signaling further includes the transmission direction information, and configures the subframe in the radio frame of the local cell according to the received control signaling.
- the second network side device 20 autonomously configures the subframe in the radio frame of the cell.
- the second network side device 20 may consider one of a service requirement, a channel load, a number of terminals, and the like, and may also consider multiple types, and then configure the subframe in the radio frame of the local cell in a specific case. For example, if the uplink load is too heavy, you can configure an uplink subframe. If there are too many downlink services, you can configure multiple downlink subframes. It should be noted that the above Tables 1 to 6 are merely illustrative, and the embodiments of the present invention are not necessarily in accordance with the contents of Tables 1 to 6, and may not be used in the form and contents of Tables 1 to 6. Other ways to achieve.
- the first network side device 10 and the second network side device 20 in the embodiment of the present invention may be a station (such as a macro base station, a micro base station, a home base station, etc.), or an RN (relay) device, or may be Other network side devices.
- a station such as a macro base station, a micro base station, a home base station, etc.
- RN relay
- two network side devices a method for transmitting information, and a method for configuring a subframe are also provided in the embodiment of the present invention. Since the principles of the devices and methods for solving the problem are similar to those for configuring the subframe, the devices are The implementation of the method and method can be referred to the implementation of the system, and the repetition will not be repeated.
- the first network side device of the embodiment of the present invention includes: an information determining module 100 and a sending module 110.
- the information determining module 100 is configured to determine the subframe type information according to the subframe in the radio frame configured by the cell
- the sending module 110 is configured to send, by using an air interface, a control packet that includes the subframe type information to the network side device of the neighboring cell. make.
- the transmitting module 110 transmits control signaling through a specific time-frequency position of a specific subframe in the radio frame.
- the transmitting module 110 can transmit control signaling through a specific time-frequency position of a specific subframe in a radio frame.
- the transmitting module 110 transmits control signaling through the system broadcast.
- the sending module 110 sends control signaling through an MIB message or an SIB message.
- the sending module 110 is configured to be a downlink subframe, a specific resource location of a downlink pilot slot in a special subframe, a specific resource location of a guard slot in a special subframe, and a specific resource of a downlink subframe.
- One of the locations sends control signaling.
- the transmitting module 110 can transmit control signaling every N radio frame cycles over the air interface; where N is a positive integer.
- the sending module 110 sends the transmission information of the resource carrying the control signaling to the network side device of the neighboring cell.
- the radio frame in the embodiment of the present invention includes a variable subframe with a variable transmission direction and/or a fixed subframe with a fixed transmission direction.
- the information determining module 100 sets a first identifier of a corresponding bit of the fixed subframe in the type bitmap in a certain length of time, and a second identifier of the corresponding bit of the variable subframe in the type bitmap in the set time length, and
- the type bitmap is used as the subframe type information; or the first sequence number corresponding to the type configuration mode of the fixed subframe and the variable subframe in a certain time length is determined according to the correspondence between the type configuration mode and the first sequence number, and the determined The first sequence number is used as subframe type information.
- control signaling further includes transmission direction information; and the information determining module 100 determines the transmission direction information according to the subframe in the radio frame configured by the cell.
- the information determining module 100 sets a third identifier of a corresponding bit in the transmission direction bitmap of the fixed subframe in a certain length of time, and a fourth corresponding bit in the transmission direction bitmap in the set time length. Identifying, and using the transmission direction bitmap as the transmission direction information; or determining the second serial number corresponding to the transmission direction configuration format of the fixed subframe and the variable subframe in a certain length of time according to the correspondence between the transmission direction configuration format and the second serial number And the determined second serial number is used as the transmission direction information.
- the information determining module 100 combines the transmission direction information and the subframe type information into configuration information, and places the configuration information in the control signaling.
- the second network side device in the embodiment of the present invention includes: a processing module 200 and a configuration module 210, where the processing module 200 is configured to receive, by using an air interface, a neighboring cell subframe type of a network side device from a neighboring cell.
- the configuration module 210 is configured to configure, according to the neighbor cell subframe type information, a subframe in the radio frame of the local cell.
- the processing module 200 receives control signaling through a specific time-frequency location of a particular subframe in the radio frame.
- the processing module 200 before receiving the control signaling, performs downlink synchronization with the network side device of the neighboring cell, and then reads the system broadcast message of the neighboring cell.
- the processing module 200 obtains the transmission information through the network interface or the high layer signaling, and determines the resource that carries the control signaling according to the transmission information.
- the radio frame of the embodiment of the present invention includes a variable subframe and/or a fixed subframe, and the variable subframe is a subframe with a variable transmission direction, and the fixed subframe is a subframe with a fixed transmission direction.
- the configuration module 210 cannot detect the interference strength between the local cell and the neighboring cell that sends the control signaling, or can detect the interference strength between the local cell and the neighboring cell that sends the control signaling, and the interference strength If the subframe to be configured is a variable subframe in the neighboring cell, the subframe is not used or the usage priority of the subframe is lowered.
- the configuration module 210 configures the unused subframe into an MBSFN subframe or an ABS subframe or an uplink subframe but does not perform uplink scheduling.
- the configuration module 210 does not detect the interference strength between the local cell and the neighboring cell that sends the control signaling, and configures the subframe type and the transmission direction to be the same subframe identifier in the neighboring cell.
- the subframe type and the transmission direction are the same.
- the configuration module 210 autonomously configures the subframe in the radio frame of the local cell when detecting the interference strength between the local cell and the neighboring cell that sends the control signaling, and the interference strength cell threshold; If the interference strength between the local cell and the neighboring cell that sends the control signaling is not the cell threshold, the subframe in the radio frame of the local cell is configured according to the default configuration information, or according to the unified configuration delivered by the network side.
- the information is configured on the subframe in the radio frame of the local cell, or when the control signaling further includes the transmission direction information, and configures the subframe in the radio frame of the local cell according to the received control signaling.
- the first type of network side device may also act as a receiver.
- the second network side device may also function as a sender, so the functions of the first network side device and the second network side device may be combined in one entity (ie, the first network side device
- the modules of the second network side device and the second network side device are in a single entity, and the function of the first network side device or the function of the second network side device is selected as needed.
- the method for transmitting information in the embodiment of the present invention includes the following steps:
- Step 501 The network side device # ⁇ determines the subframe type information according to the subframe in the radio frame configured by the cell.
- Step 502 The network side device sends, by using an air interface, control signaling that includes subframe type information to the network side device of the neighboring cell.
- the neighboring cell here is an intra-frequency neighboring cell or an inter-frequency neighboring cell; the local cell and the neighboring cell may be in the same TDD network or different TDD networks.
- a specific time-frequency position of a specific subframe may be preset in a radio frame.
- the network-side device may send control signaling by using a specific time-frequency position of a specific subframe in the radio frame. Which of the time-frequency positions of the specific subframes can be specified as the specific time-frequency position of the specific subframe can be specified in the protocol or the network-side device can be notified by the upper layer.
- Manner 1 The network side device sends control signaling through system broadcast, for example, through MIB message or SIB message in the cell system broadcast, and control signaling is also sent through the new system broadcast message.
- Manner 2 The network side device sends control signaling by using a subframe that is fixed for downlink transmission. For example, one or more of subframe 0, subframe 1, subframe 5, and subframe 6.
- Manner 3 The network side device sends control signaling by using a specific resource location of a downlink pilot time slot in a special subframe or a specific resource location of a protection time slot in a special subframe.
- Manner 4 The network side device sends control signaling by using a specific resource location of the downlink subframe.
- embodiments of the present invention are not limited to the foregoing four modes, and other embodiments capable of transmitting control signaling including subframe type information through an air interface are applicable to the embodiments of the present invention.
- the network side device transmits control signaling every N radio frame cycles through the air interface; wherein N is a positive integer. For example, if N is 5, the number of infinite frames can be calculated, and control signaling is sent to the fifth radio frame; then, the calculation is continued.
- the specific number of N can be specified in the agreement or notified by the senior management as needed.
- the sender and the receiver need to be consistent regardless of the transmission method and the value of N. Specifically, it may be specified in the agreement or negotiated by the sender and the receiver or notified by the upper layer.
- the network side device sends the transmission information of the resource carrying the control signaling to the network side device of the neighboring cell before the network side device sends the control signaling.
- the transmission information herein includes, but is not limited to, at least one of the following information:
- the transmission information is read through a network interface (for example, OAM is read; and the high-level signaling carrying the transmission information is directly read to obtain transmission information.
- a network interface for example, OAM is read; and the high-level signaling carrying the transmission information is directly read to obtain transmission information.
- the radio frame in the embodiment of the present invention includes three types of variable subframes with variable transmission directions and/or fixed subframes with fixed transmission directions. 1.
- the subframes in the radio frame are all variable subframes; 2.
- the subframes in the radio frame are all fixed subframes; 3.
- the subframes in the radio frame have variable subframes and fixed subframes.
- Variable subframes can be dynamically configured as needed. For example, if the current period is the next uplink, it may become a downlink, and the fixed subframe is a subframe in which the transmission direction does not change.
- step 501 there are many ways for the network side device to determine the subframe type information, and several types are listed below.
- Manner 1 The network side device sets a first identifier of a corresponding bit in a fixed type subframe in a type bitmap (bit bitmap), and a second time in which the variable subframe is in a corresponding bit length in the type bitmap. Identifies and uses the type bitmap as the subframe type information.
- bit bitmap type bitmap
- the type bitmap may only represent the subframe type information of the fixed subframe in a certain length of time.
- subframe 0 subframe 1
- subframe 2 subframe 5
- subframe 6 and subframe 7 are fixed subframes.
- ' ⁇ indicating a fixed subframe
- "0" means a variable subframe, as shown in Table 1, the specific type bitmap is 1110011100.
- the type b it m ap may only represent the subframe type information of the variable subframe in a certain length of time.
- subframe 3 denotes a fixed subframe
- subframe 8 and subframe 9 are variable subframes.
- ⁇ denotes a fixed subframe
- 0 denotes a variable subframe, as shown in Table 2, the specific type bitmap is 0001100011.
- the specific length of time can be specified in the agreement, or it can be notified by the senior management.
- the set duration can also be updated as needed.
- the specific type bitmap indicates which subframes, the subframes corresponding to each bit, and the meaning of each bit identifier can be specified in the protocol, and can also be notified by the upper layer.
- Manner 2 The network side device determines, according to the corresponding relationship between the type configuration mode and the first sequence number, the first sequence number corresponding to the type configuration mode of the fixed subframe and the variable subframe in a certain length of time, and the determined first The sequence number is used as the subframe type information.
- the correspondence between the type configuration mode and the first serial number may be specified in the protocol in advance, or may be notified by the upper layer.
- the correspondence between the configuration format and the serial number can also be updated as needed.
- the network interface Since it is not dynamically allocated, the network interface has already interacted with the uplink and downlink configuration information. Therefore, if a certain subframe is notified as a fixed subframe in the implementation, the transmission direction is the same as that indicated by the already notified uplink and downlink configuration information; A certain subframe is notified as a variable subframe, and its transmission direction is independent of the meaning indicated by the already notified uplink and downlink configuration information.
- the network side device can also put the transmission direction information into the control signaling.
- the transmission direction information indicates whether each subframe is an uplink transmission or a downlink transmission.
- the network side device may further determine the transmission direction information according to the subframe in the radio frame configured by the cell.
- the network side device determines the transmission direction information, and several are listed below.
- Manner 1 The network side device sets a third identifier of a corresponding bit in the transmission direction bitmap of the fixed subframe in a certain length of time, and a fourth identifier of the corresponding bit in the transmission direction bitmap of the variable subframe in the set time length, and The transmission direction bitmap is used as the transmission direction information.
- the transmission direction of subframe 2, subframe 7, subframe 8 and subframe 9 is uplink. "1" indicates that the transmission direction is uplink, and "0" indicates that the transmission direction is downlink. As shown in Table 4, the specific transmission direction bitmap is 0010000111.
- the specific length of time can be specified in the agreement, or it can be notified by the senior management.
- the set duration can also be updated as needed.
- the specific transmission direction bitmap indicates which subframes, subframes corresponding to each bit, and the meaning of each bit identifier can be specified in the protocol, and can also be notified by the upper layer.
- Manner 2 The network side device determines a second serial number corresponding to a transmission direction configuration format of the fixed subframe and the variable subframe in a certain length of time according to the mapping between the configuration format of the transmission direction and the second serial number, and determines the second serial number.
- the serial number is used as the transmission direction information.
- the transmission direction of subframe 2, subframe 3, subframe 4, and subframe 7 is uplink; subframe 0, subframe 1, subframe 5, subframe 6, and sub-frame
- the transmission direction of frame 8 and subframe 9 is downlink. According to Table 5, it can be determined that the first serial number is 3.
- the correspondence between the type configuration mode and the first serial number may be specified in the protocol in advance, or may be notified by the upper layer.
- the correspondence between the configuration format and the serial number can also be updated as needed.
- the network side device may send the transmission direction information and the subframe type information through two different control signals.
- the transmission direction information and the subframe type information may also be placed in the same control signaling.
- the network side device If the network side device puts both the transmission direction information and the subframe type information in the same control signaling, the network side device combines the transmission direction information and the subframe type information into configuration information, and places the configuration information in the control signaling.
- the specific configuration information may be type bitmap+transmission direction bitmap; type bitmap+second serial number; first serial number
- transmission direction bitmap one of the first sequence number + the second sequence number.
- the specific use can be specified in the agreement; it can also be notified by the senior management.
- the configuration information can be type bitmap + transmission direction bitmap
- the first half can be type bitmap, the second half Part of the transmission direction bitmap; the first half is the transmission direction bitmap, the second half is the type bitmap; you can also mix the type bitmap and the transmission direction bitmap.
- the subframe type information and the transmission direction information of each subframe may be directly notified to the neighboring cell by using more than one bit information.
- subframe 0, subframe 1 subframe 2
- subframe 5, subframe 6 and subframe 7 are fixed subframes
- 8 and subframe 9 are variable subframes " ⁇ denotes a fixed subframe, "0" denotes a variable subframe; subframe 2, subframe 7, subframe 8 and subframe 9 transmit direction is uplink, subframe 0, subframe 1.
- the transmission direction of subframe 3, subframe 4, subframe 5, and subframe 6 is downlink, 1" indicates that the transmission direction is uplink, and "0" indicates that the transmission direction is downlink, as shown in Table 6.
- the specific configuration information is 00000110100000011111.
- the network side device may also put one or more of the following information into the control signaling according to the requirement: the cell identifier of the current cell, the PLMN identifier of the current cell, and the cell identifier of the neighboring cell.
- the method for configuring a subframe in the embodiment of the present invention includes the following steps:
- Step 601 The network side device receives the control signaling of the neighboring cell subframe type information of the network side device of the neighboring cell by using the air interface, where the subframe type information is a sub-frame of the neighboring cell according to the configured radio frame.
- the frame is determined.
- Step 602 The network side device only uses the neighboring cell subframe type information to configure the subframe in the radio frame of the local cell.
- the network side device receives control signaling by using a specific time-frequency position of a specific subframe in the radio frame.
- the resource transmission information of the specific bearer control signaling needs to be consistent between the sender and the receiver. Specifically, it may be specified in the agreement or negotiated by the sender and the receiver or notified by the upper layer.
- the network side device receives the transmission information of the bearer control signaling sent by the network side device of the neighboring cell.
- the transmission information herein includes, but is not limited to, at least one of the following information:
- the transmission information is read through a network interface (for example, an OAM interface); and the high-level signaling carrying the transmission information is directly read to obtain transmission information.
- a network interface for example, an OAM interface
- the high-level signaling carrying the transmission information is directly read to obtain transmission information.
- the network side device may perform downlink synchronization with the network side device of the neighboring cell, and then read system broadcast information of the neighboring cell, so as to know the information of the neighboring cell.
- the radio frame of the embodiment of the present invention includes a variable subframe and/or a fixed subframe, which indicates three cases. 1.
- the subframes in the radio frame are all variable subframes; 2.
- the subframes in the radio frame are all fixed subframes; 3.
- the subframes in the radio frame have variable subframes and fixed subframes.
- the network side device can also determine whether the interference strength between the local cell and the neighboring cell transmitting the control signaling can be detected.
- the intensity of the disturbance here includes but is not limited to one of the following values:
- the network side device does not use the subframe or lowers the subframe. The priority of the use of the subframe.
- the network side device may configure the unused subframe into an MBSFN subframe or an ABS or an uplink subframe but does not perform uplink scheduling.
- control signaling includes the transmission direction information, and determines that the interference strength between the local cell and the neighboring cell that sends the control signaling cannot be detected, if the subframe to be configured is a variable subframe in the neighboring cell, the network side device
- the subframe type and the transmission direction that can be configured are the same as the subframe type and the transmission direction of the same subframe identifier in the neighboring cell.
- the subframe to be configured is a fixed subframe in the neighboring cell
- the subframe type and the transmission direction and the neighboring direction that the network side device can configure is the same as the transmission direction.
- the transmission direction of the fixed subframe can be determined according to preset information or uplink and downlink configuration information, if the transmission direction information is not included in the control signaling, the transmission direction of the fixed subframe can also be known.
- the control direction includes the transmission direction information, the transmission direction information in the control signaling is taken as the standard.
- the interference strength is further compared with the threshold.
- the specific threshold setting can be specified in the agreement or notified by the upper layer based on the empirical value or simulation result. Different interference strengths correspond to different thresholds.
- the network side device does not use the subframe or lowers the usage priority of the subframe.
- the specific manner of not using the subframe is the same as the method of not using the subframe described above, and details are not described herein again.
- the network side device may configure the subframe in the radio frame of the local cell according to the default configuration information, or according to the unified configuration information sent by the network side.
- the subframe in the radio frame of the cell is configured, or when the transmission direction information is included in the control signaling, the subframe in the radio frame of the local cell is configured according to the received control signaling.
- the network side device autonomously configures the subframe in the wireless frame of the cell.
- the network side device may consider one of a service requirement, a channel load, and a number of terminals. It is also possible to consider a plurality of types, and then configure the subframes in the radio frame of the cell in a specific case.
- a process may be synthesized to form a new method for configuring a subframe, that is, step 501 and step 502 are performed first, and then step 601 and step 602 are performed.
- embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention can be embodied in the form of a computer program product embodied on one or more computer-usable storage interfaces (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.
- computer-usable storage interfaces including but not limited to disk storage, CD-ROM, optical storage, etc.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
- the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
- the embodiment of the present invention sends the control signaling of the local cell to the neighboring cell through the air interface, so that when the uplink and downlink service proportion requirements of the cell are dynamically changed, the configuration information of the neighboring cell can be acquired, and the system performance is improved; further, The update speed of the subframe configuration information is improved to support more dynamic subframe allocation and corresponding interference avoidance operation, and is particularly effective in a scenario where there is no network interface between cell base stations or a network interface delay is large.
- the network side device determines the type of each subframe in the radio frame of the local cell according to the received control signaling including the subframe type information, and configures the subframe in the radio frame of the local cell to implement the neighboring cell. Thousands of disturbances coexist.
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Abstract
本发明涉及无线通信技术领域,特别涉及一种子帧配置信息通知和子帧配置的方法、系统及设备,用以在小区的上下行业务比例需求进行动态改变时,能够获取邻区的配置信息。本发明实施例将子帧配置信息通知的方法包括:网络侧设备根据本小区配置的无线帧中的子帧,确定子帧类型信息;所述网络侧设备通过空中接口向邻小区的网络侧设备发送含有子帧类型信息的控制信令。由于本发明实施例通过空中接口将本小区的控制信令发送给邻小区,从将小区的上下行业务比例需求进行动态改变时,能够获取邻区的配置信息,提高了系统性能。
Description
子帧配置信息通知和子帧配置的方法、 系统及设备 本申请要求在 2011年 3月 29日提交中国专利局、 申请号为 201110077308.2、 发明名称为 子帧配置信息通知和子帧配置的方法、 系统及设备"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 本发明涉及无线通信技术领域, 特别涉及一种子帧配置信息通知和子帧配置的方法、 系统及设备。 背景技术 对于蜂窝系统釆用的基本的双工方式, TDD ( Time division duplex, 时分双工)模式 是指上下行链路使用同一个工作频带, 在不同的时间间隔上进行上下行信号的传输, 上下 行之间有保护间隔 ( Guard Period, GP ); FDD ( Frequency division duplex, 频分双工)模 式则指上下行链路使用不同的工作频带, 可以在同一个时刻在不同的频率载波上进行上下 行信号的传输, 上下行之间有保护带宽 (Guard Band, GB )。
LTE ( Long Term Evolution, 长期演进) TDD系统的帧结构稍复杂一些, 如图 1A所示, 一个无线帧长度为 10ms, 包含特殊子帧和常规子帧两类共 10个子帧, 每个子帧为 lms。 特 殊子帧分为 3个子帧: DwPTS ( Downlink Pilot Time Slot, 下行导频子帧) 用于传输 PSS ( Primary Synchronization Signal , 主同步信号 )、 PDCCH ( Physical Downlink Control Channel, 物理下行控制信道)、 PHICH ( Physical HARQ Indication Channel, 物理混合自动 请求重传指示信道)、 PCFICH ( Physical Control Format Indication Channel, 物理控制格式 指示信道)、 PDSCH ( Physical Downlink Shared Channel, 物理下行链路共享信道)等; GP 用于下行和上行之间的保护间隔); UpPTS ( Uplink Pilot Time Slot, 上行导频子帧)用于传 输 SRS ( Sounding Reference Signal, 探测用参考信号)、 PRACH ( Physical Random Access Channel, 物理随机接入信道) 等。 常规子帧包括上行子帧和下行子帧, 用于传输上行 /下 行控制信道和业务数据等。 其中在一个无线帧中, 可以配置两个特殊子帧 (位于子帧 1和 6), 也可以配置一个特殊子帧 (位于子帧 1)。子帧 0和子帧 5以及特殊子帧中的 DwPTS子帧总是用 作下行传输,子帧 2以及特殊子帧中的 UpPTS子帧总是用于上行传输,其他子帧可以依据需 要配置为用作上行传输或者下行传输。
TDD系统中上行和下行传输使用相同的频率资源, 在不同的子帧上传输上行 /下行信 号。在常见的 TDD系统中, 包括 3G的 TD-SCDMA (时分同步码分多址)系统和 4G的 TD-LTE
系统, 上行和下行子帧的划分是静态或半静态的, 通常的做法是在网络规划过程中根据小 区类型和大致的业务比例确定上下行子帧比例划分并保持不变。 这在宏小区大覆盖的背景 下是较为筒单的做法, 并且也较为有效。 而随着技术发展, 越来越多的微小区( Pico cell ), 家庭基站( Home NodeB )等低功率基站被部署用于提供局部的小覆盖, 在这类小区中, 用户数量较少, 且用户业务需求变化较大, 因此小区的上下行业务比例需求存在动态改变 的情况。
在实际系统中, 不同的小区如果设置了不同的上下行子帧配置, 则会造成相邻小区的 交叉时隙千扰。 如图 4所示, 宏小区在发送下行信号的时隙上, femto cell (毫微微小区) 用于上行信号接收, 则两小区之间出现: 基站 -基站千扰, femto基站直接接收到 Macro基站 的下行信号, 将严重影响 femto基站接收 L-UE ( Local UE, 本地 UE )上行信号的盾量。
这里的相邻小区可以是地理上相邻的使用同样 TDD载波的小区(图 1B所示), 或者是地 理上重叠或使用相邻 TDD载波的小区 (图 1C所示)。
综上所述, 目前小区的上下行业务比例需求进行动态改变时, 还没有一种获取邻区配 置信息的方案, 从而无法实现邻区千扰共存。 发明内容 本发明实施例提供一种子帧配置信息通知的方法和设备, 用以在小区的上下行业务比 例需求进行动态改变时, 能够获取邻区的配置信息。
本发明实施例提供一种配置子帧的方法、 系统和设备, 用以解决现有技术中存在的小 区的上下行业务比例需求进行动态改变时, 无法实现邻区千扰共存的方法。
本发明实施例提供的一种子帧配置信息通知的方法, 包括:
网络侧设备 #>据本小区配置的无线帧中的子帧, 确定子帧类型信息;
所述网络侧设备通过空中接口向邻小区的网络侧设备发送含有子帧类型信息的控制 信令。
本发明实施例提供的一种子帧配置的方法, 包括:
网络侧设备通过空中接口接收来自邻小区的网络侧设备的包含邻小区子帧类型信息 的控制信令, 其中所述子帧类型信息是邻小区的网络侧设备根据配置的无线帧中的子帧确 定的;
所述网络侧设备根据所述邻小区子帧类型信息, 对本小区无线帧中的子帧进行配置。 本发明实施例提供的一种子帧配置信息通知的设备, 包括:
信息确定模块, 用于根据本小区配置的无线帧中的子帧, 确定子帧类型信息; 发送模块, 用于通过空中接口向邻小区的网络侧设备发送含有子帧类型信息的控制信
令。
本发明实施例提供的一种子帧配置的设备, 包括:
处理模块, 用于通过空中接口接收来自邻小区的网络侧设备的包含邻小区子帧类型信 息的控制信令, 其中所述子帧类型信息是邻小区的网络侧设备根据配置的无线帧中的子帧 确定的;
配置模块, 用于根据所述邻小区子帧类型信息, 对本小区无线帧中的子帧进行配置。 本发明实施例提供的一种子帧配置的系统, 包括:
网络侧设备, 用于根据本小区配置的无线帧中的子帧, 确定子帧类型信息, 通过空中 接口向邻小区的网络侧设备发送含有子帧类型信息的控制信令;
收到所述控制信令的网络侧设备, 用于通过空中接口接收来自邻小区的网络侧设备的 包含邻小区子帧类型信息的控制信令, 根据所述邻小区子帧类型信息, 对本小区无线帧中 的子帧进行配置。
由于本发明实施例通过空中接口将本小区的控制信令发送给邻小区, 从而在小区的上 下行业务比例需求进行动态改变时, 能够获取邻区的配置信息, 提高了系统性能; 进一步 的,提高了子帧配置信息的更新速度,以支持更为动态的子帧分配和相应的千扰避免操作, 在小区基站之间没有网络接口, 或者网络接口延时较大的场景中尤为有效。
由于本发明实施例网络侧设备根据收到的包含子帧类型信息的控制信令, 确定本小区 无线帧中的每个子帧的类型, 并对本小区无线帧中的子帧进行配置, 实现邻区千扰共存。 附图说明 图 1A为 TD-LTE系统帧结构示意图;
图 1B为使用相同 TDD载波时交叉时隙千扰示意图;
图 1 C为使用相邻 TDD载波时交叉时隙千扰示意图;
图 2为本发明实施例配置子帧的系统结构示意图;
图 3为本发明实施例第一种网络侧设备的结构示意图;
图 4为本发明实施例第二种网络侧设备的结构示意图;
图 5为本发明实施例传输信息的方法流程示意图;
图 6为本发明实施例配置子帧的方法流程示意图。 具体实施方式 本发明实施例网络侧设备 据本小区配置的无线帧中的子帧, 确定子帧类型信息; 网 络侧设备通过空中接口向邻小区的网络侧设备发送含有子帧类型信息的控制信令。 由于本
发明实施例通过空中接口将本小区的控制信令发送给邻小区, 从而在小区的上下行业务比 例需求进行动态改变时, 能够获取邻区的配置信息, 提高了系统性能。
本发明实施例网络侧设备根据通过空中接口接收来自邻小区的网络侧设备的包含邻 小区子帧类型信息的控制信令, 对本小区无线帧中的子帧进行配置, 其中子帧类型信息是 邻小区的网络侧设备根据配置的无线帧中的子帧确定的。 由于本发明实施例网络侧设备根 据收到的包含子帧类型信息的控制信令, 确定本小区无线帧中的每个子帧的类型, 并对本 小区无线帧中的子帧进行配置, 实现邻区千 4尤共存。
其中, 本发明实施例能够应用于 TDD系统中 (比如 TD-LTE系统), 也可以应用于其他 需要动态调整子帧上下行配置的系统中,例如 TD-SCDMA系统及其后续演进系统, WiMAX ( Worldwide Interoperability for Microwave Access, 波存取全球互通) 系统及其后续演进 系统等。
在下面的说明过程中, 先从网络侧和终端侧的配合实施进行说明, 最后分别从网络侧 与终端侧的实施进行说明, 但这并不意味着二者必须配合实施, 实际上, 当网络侧与终端 侧分开实施时, 也解决了分别在网络侧、 终端侧所存在的问题, 只是二者结合使用时, 会 获得更好的技术效果。
下面结合说明书附图对本发明实施例作进一步详细描述。
如图 2所示, 本发明实施例配置子帧的系统包括: 第一网络侧设备 10和第二网络侧设 备 20。
第一网络侧设备 10, 用于才 居本小区配置的无线帧中的子帧, 确定子帧类型信息, 通 过空中接口向邻小区的网络侧设备发送含有子帧类型信息的控制信令。
收到控制信令的第二网络侧设备 20, 用于通过空中接口接收来自邻小区的网络侧设备 的包含邻小区子帧类型信息的控制信令, 根据邻小区子帧类型信息, 对本小区无线帧中的 子帧进行配置。
其中, 这里的邻小区是同频邻小区或异频邻小区; 本小区和邻小区可以处于同一个 TDD网络或不同 TDD网络。
在实施中, 可以在无线帧中预先设置一些特定子帧的特定时频位置, 第一网络侧设备 10可以通过无线帧中特定子帧的特定时频位置发送控制信令。 具体哪些子帧的哪些时频位 置可以作为特定子帧的特定时频位置可以在协议中规定也可以由高层通知第一网络侧设 备 10。
相应的, 第二网络侧设备 20通过无线帧中特定子帧的特定时频位置接收控制信令。 第一网络侧设备 10通过无线帧中特定子帧的特定时频位置发送控制信令的方式有很 多种, 下面列举几种。
方式一、 第一网络侧设备 10通过系统广播发送控制信令, 比如通过小区系统广播中的
MIB ( Master Information Block, 主信息块 ) 消息或 SIB ( System Information Block, 系统 信息块) 消息发送控制信令, 也可以通过新的系统广播消息发送控制信令。
方式二、 第一网络侧设备 10通过固定为下行传输的子帧发送控制信令。 比如子帧 0、 子帧 1、 子帧 5和子帧 6中的一个或多个。
方式三、 第一网络侧设备 10通过特殊子帧中的下行导频时隙的特定资源位置或特殊子 帧中的保护时隙的特定资源位置发送控制信令。
方式四、 第一网络侧设备 10通过下行子帧的特定资源位置发送控制信令。
需要说明的是, 本发明实施例并不局限于上述四种方式, 其他能够通过空口发送含有 子帧类型信息的控制信令的方式都适用本发明实施例。
较佳的,第一网络侧设备 10通过空中接口以每 N个无线帧为周期发送控制信令;其中 N 为正整数。 比如 N是 5 , 则可以计算无限帧的数量, 到第 5个无线帧就发送一次控制信令; 然后清零继续计算。
N具体取多少可以根据需要在协议中规定或者由高层通知。
需要说明的是, 不管釆用哪种发送方式以及 N的取值是多少, 发送方和接收方都需要 保持一致。 具体可以在协议中规定或者发送方和接收方协商确定或者都由高层通知。
如果釆用发送方和接收方协商确定, 较佳的一种方式是第一网络侧设备 10向第二网络 侧设备 20发送承载控制信令的资源的传输信息。
这里的传输信息包括但不限于下列信息中的至少一种:
承载控制信令的子帧的位置、 发送控制信令的周期、 承载控制信令的资源位置信息、 OFDM ( Orthogonal Frequency Division Multiplexing, 正交频分复用)符号、 频域子载波、 PRB ( Physical Resource Block, 物理资源块)、 码道等资源信息。
其中, 传输信息的发送方式有很多。 比如通过网络接口 (例如 OAM ( Operations & Maintenance, 运行和维护)接口)读取传输信息; 直接读取携带传输信息的高层信令获得 传输信息。
需要说明的是, 本发明实施例并不局限于上述几种方式, 其他能够发送传输信息的方 式都适用本发明实施例。
较佳的, 第二网络侧设备 20接收控制信令之前还可以与第一网络侧设备 10进行下行同 步, 然后读取邻小区的系统广播信息, 从而知道邻小区的信息。
如果第一网络侧设备 10通过系统广播信息传输控制信令, 则第二网络侧设备 20读取邻 小区的系统广播信息时就可以得到控制信令。 否则, 读取邻小区的系统广播信息之后, 接 收控制信令。
其中, 本发明实施例的无线帧包括传输方向可变的可变子帧和 /或传输方向固定不变 的固定子帧表示三种情况。 1、 无线帧中的子帧全是可变子帧; 2、 无线帧中的子帧全是固
定子帧; 3、 无线帧中的子帧有可变子帧和固定子帧。
可变子帧是根据需要可以进行可以动态配置。 比如当前周期是上行下个周期就有可能 变成下行, 固定子帧是传输方向不会发生变化的子帧。
第一网络侧设备 10确定子帧类型信息的方式有很多种, 下面列举几种。
方式一、 第一网络侧设备 10设置一定时间长度中固定子帧在类型 bitmap (比特位图) 中对应比特位的第一标识, 以及设置时间长度中可变子帧在类型 bitmap中对应比特位的第 二标识, 并将类型 bitmap作为子帧类型信息。
在实施中, 类型 bitmap可以只表示一定时间长度中固定子帧的子帧类型信息。
假设时间长度是 10ms (即一个无线帧长度), 子帧 0、 子帧 1、 子帧 2、 子帧 5、 子帧 6和 子帧 7是固定子帧。 第一标识用 " 1" 表示固定子帧, 第二标识用 "0" 表示可变子帧, 则 如表 1所示:
具体的类型 bitmap是 1110011100。 即子帧类型信息为 1110011100。
相应的, 第二网络侧设备 20收到 1110011100后, 居类型 bitmap中每个比特位对应的 子帧以及每个比特位对应的标识的含义就知道每个子帧的类型了。
在实施中, 类型 b it m ap可以只表示一定时间长度中可变子帧的子帧类型信息。
表 2 具体的类型 bitmap是 0001100011。
相应的, 第二网络侧设备 20收到 0001100011后, 根据类型 bitmap中每个比特位对应的 子帧以及每个比特位对应的标识的含义就知道每个子帧的类型了。
具体时长可以在协议中规定, 也可以由高层通知。 根据需要还可以对设定的时长进行 更新。
具体类型 bitmap表示哪些子帧、 每个比特位对应的子帧以及每个比特位标识的含义可 以在协议中规定, 还可以由高层通知。
方式二、 第一网络侧设备 10根据设置的类型配置模式和第一序号的对应关系, 确定一
定时间长度中的固定子帧和可变子帧的类型配置模式对应的第一序号, 并将确定的第一序 号作为子帧类型信息。
类型配置模式和第一序号的对应关系可以参见表 3。
表 3 假设时间长度是 10ms (即一个无线帧长度), 子帧 3、 子帧 4、 子帧 8和子帧 9是可变子 帧; 子帧 0、 子帧 1、 子帧 2、 子帧 5、 子帧 6和子帧 7是固定子帧。 根据表 3就可以确定第一 序号是 1。
相应的, 第二网络侧设备 20收到第一序号 2后, 根据表 3就知道每个子帧的类型了。 类型配置模式和第一序号的对应关系可以预先在协议中规定, 也可以由高层通知。 根 据需要还可以对配置格式和序号的对应关系进行更新。
由于不是动态分配时, 网络接口已经交互了上下行配置信息。 因此, 在实施中如果通 知某子帧为固定子帧, 其传输方向与已经通知的上下行配置信息所指示的含义相同; 如果 通知某个子帧为可变子帧, 其传输方向与已经通知的上下行配置信息所指示的含义无关。
较佳的, 第一网络侧设备 10还可以将传输方向信息置于控制信令中。 传输方向信息表 示每个子帧是上行传输还是下行传输。
具体的, 第一网络侧设备 10可以根据本小区配置的无线帧中的子帧, 确定传输方向信 息。
第一网络侧设备 10确定传输方向信息的方式有很多种, 下面列举几种。
方式一、 第一网络侧设备 10设置一定时间长度中固定子帧在传输方向 bitmap中对应比 特位的第三标识, 以及设置时间长度中可变子帧在传输方向 bitmap中对应比特位的第四标 识, 并将传输方向 bitmap作为传输方向信息。
假设时间长度是 10ms (即一个无线帧长度)。 子帧 2、 子帧 7、 子帧 8和子帧 9的传输方 向是上行。 " Γ 表示传输方向是上行, "0" 表示传输方向是下行, 则如表 4所示:
0 1 2 3 4 5 6 7 8 9 传输方向 0 0 1 0 0 0 0 1 1 1 表 4 具体的传输方向 bitmap是 0010000111。
相应的, 第二网络侧设备 20收到 0010000111后, 根据传输方向 bitmap中每个比特位对 应的子帧以及每个比特位对应的标识的含义就知道每个子帧的传输方向了。
具体时长可以在协议中规定, 也可以由高层通知。 根据需要还可以对设定的时长进行 更新。
具体传输方向 bitmap表示哪些子帧、 每个比特位对应的子帧以及每个比特位标识的含 义可以在协议中规定, 还可以由高层通知。
方式二、 第一网络侧设备 10根据传输方向配置格式和第二序号的对应关系, 确定一定 时间长度中的固定子帧和可变子帧的传输方向配置格式对应的第二序号, 并将确定的第二 序号作为传输方向信息。
传输方向配置格式和第二序号的对应关系可以参见表 5。
表 5 ( D表示下行; U表示上行)
假设时间长度是 10ms (即一个无线帧长度), 子帧 2、 子帧 3、 子帧 4和子帧 7的传输方 向是上行; 子帧 0、 子帧 1、 子帧 5、 子帧 6、 子帧 8和子帧 9的传输方向是下行。 根据表 5就 可以确定第一序号是 3。
相应的, 第二网络侧设备 20收到第一序号 3后, 根据表 5就知道每个子帧的类型了。 类型配置模式和第一序号的对应关系可以预先在协议中规定, 也可以由高层通知。 根 据需要还可以对配置格式和序号的对应关系进行更新。
其中, 第一网络侧设备 10可以将传输方向信息和子帧类型信息通过两个不同的控制信 令发送; 也可以将传输方向信息和子帧类型信息都置于同一个控制信令中。
如果第一网络侧设备 10将传输方向信息和子帧类型信息都置于同一个控制信令中, 则 第一网络侧设备 10将传输方向信息和子帧类型信息组合成配置信息, 并将配置信息置于控
制信令中。
具体的配置信息可以是类型 bitmap+传输方向 bitmap; 类型 bitmap+第二序号; 第一序号 +传输方向 bitmap; 第一序号 +第二序号中的一种。
具体釆用那种可以在协议中规定; 还可以由高层通知。
如果配置信息可以是类型 bitmap+传输方向 bitmap, 可以前半部分是类型 bitmap, 后半 部分是传输方向 bitmap; 也可以前半部分是传输方向 bitmap, 后半部分是类型 bitmap; 还可 以将类型 bitmap和传输方向 bitmap混合在一起。
如果是将类型 bitmap和传输方向 bitmap混合在一起, 可以直接将每个子帧的子帧类型 信息与传输方向信息用多于一个 bit信息通知给邻小区。
假设时间长度是 10ms (即一个无线帧长度), 子帧 0、 子帧 1、 子帧 2、 子帧 5、 子帧 6和 子帧 7是固定子帧, 子帧 3、 子帧 4、 子帧 8和子帧 9是可变子帧 " 1" 表示固定子帧, "0" 表 示可变子帧; 子帧 2、 子帧 7、 子帧 8和子帧 9传输方向是上行, 子帧 0、 子帧 1、 子帧 3、 子 帧 4、 子帧 5和子帧 6传输方向是下行, 1"表示传输方向是上行, "0"表示传输方向是下行, 则如表 6所示:
表 6 具体的配置信息是 00000110100000011111。
相应的, 第二网络侧设备 20收到 00000110100000011111后, 根据分别根据类型 bitmap 和传输方向 bitmap中每个比特位对应的子帧以及每个比特位对应的标识的含义就知道每个 子帧的类型和传输方向了。
其中, 根据需要网络侧设备还可以将下列信息中的一种或多种置于控制信令中: 本小区的小区标识、 本小区的 PLMN ( Public Land Mobile Network, 公共陆地移动网) 标识和邻小区的小区标识。
第二网络侧设备 20根据收到的包含子帧类型信息的控制信令, 确定本小区无线帧中的 每个子帧的类型, 然后对本小区无线帧中的子帧进行配置。
较佳的, 第二网络侧设备 20还可以判断是否能够检测本小区与发送控制信令的邻小区 之间的千扰强度。
这里的千扰强度包括但不限于下列值中的一种:
RSRP ( Reference signal received power , 参考信号接收功率) 值、 RIP ( Received
Interference Power, 千扰接收功率)值、 CQI ( Channel Quality Indicator, 信道盾量指示) 值和 RSRQ ( Reference Signal Received Quality, 参考信号接收盾量)值。
在确定不能够检测本小区与发送控制信令的邻小区之间的千扰强度时, 如果需要配置 的子帧在邻小区是可变子帧, 则第二网络侧设备 20不使用该子帧或降低该子帧的使用优先 级。
具体的, 第二网络侧设备 20可以将不使用的子帧配制成 MBSFN ( MBSFN Multicast Broadcast Single Frequency Network, 多播广播单频网络) 子帧或 ABS ( Almost Blank Subframe, 空白子帧)或上行子帧但不进行上行调度。
如果控制信令包括传输方向信息, 并且确定不能够检测本小区与发送控制信令的邻小 区之间的千扰强度, 如果需要配置的子帧在邻小区是可变子帧时, 第二网络侧设备 20可以 配置的子帧类型和传输方向与邻小区中同一子帧标识的子帧类型和传输方向相同。
比如子帧 7和子帧 8是可变子帧, 则可以将本小区的子帧 7配置成与邻小区的子帧 7相同 的传输方向; 将本小区的子帧 8配置成与邻小区的子帧 8相同的传输方向。
在确定不能够检测本小区与发送控制信令的邻小区之间的千扰强度, 如果需要配置的 子帧在邻小区是固定子帧, 第二网络侧设备 20可以配置的子帧类型和传输方向与邻小区中 同一子帧标识的子帧类型和传输方向相同。
由于固定子帧的传输方向可以根据预先设定的信息或上下行配置信息确定, 所以控制 信令中如果没有包括传输方向信息, 也可以知道固定子帧的传输方向。 当然, 如果控制信 令中包括传输方向信息, 则以控制信令中的传输方向信息为准。
其中, 如果第二网络侧设备 20确定能够检测本小区与发送控制信令的邻小区之间的千 扰强度, 则进一步将千扰强度与阈值进行比较。 具体阈值的设定可以根据经验值或仿真结 果在协议中规定或由高层通知。 不同的千扰强度对应不同的阈值。
如果千扰强度不小于阈值, 并且需要配置的子帧在邻小区是可变子帧时, 第二网络侧 设备 20不使用该子帧或降低该子帧的使用优先级。 不使用子帧的具体方式与上述不使用子 帧的方式相同, 在此不再赘述。
如果千扰强度不小于阈值, 不管是可变子帧还是固定子帧, 第二网络侧设备 20都可以 根据默认配置信息对本小区无线帧中的子帧进行配置, 或根据网络侧下发的统一配置信息 对本小区无线帧中的子帧进行配置, 或在控制信令中还包括传输方向信息时, 根据收到的 控制信令对本小区无线帧中的子帧进行配置。
如果千扰强度小于阈值, 不管是可变子帧还是固定子帧, 第二网络侧设备 20自主对本 小区无线帧中的子帧进行配置。
在自主配置时, 第二网络侧设备 20可以考虑业务需求、 信道负荷、 终端数量等情况中 的一种, 也可以考虑多种, 然后才 居具体情况对本小区无线帧中的子帧进行配置。
比如上行负载过重, 可以多配置上行子帧; 下行业务过多, 可以多配置下行子帧等。 需要说明的是, 上述表 1〜表 6只是举例说明, 并不表示本发明实施例一定按照表 1 ~ 表 6的内容, 也可以不釆用表 1〜表 6的形式以及内容, 而釆用其他方式实现。
其中, 本发明实施例的第一网络侧设备 10和第二网络侧设备 20可以 ^&站(比如宏基 站, 微基站、 家庭基站等), 也可以是 RN (中继)设备, 还可以是其它网络侧设备。
基于同一发明构思, 本发明实施例中还提供了两种网络侧设备以及传输信息的方法和 配置子帧的方法, 由于这些设备和方法解决问题的原理与配置子帧的系统相似, 因此这些 设备和方法的实施可以参见系统的实施, 重复之处不再赘述。
如图 3所示,本发明实施例的第一种网络侧设备包括:信息确定模块 100和发送模块 110。 信息确定模块 100, 用于根据本小区配置的无线帧中的子帧, 确定子帧类型信息; 发送模块 110,用于通过空中接口向邻小区的网络侧设备发送含有子帧类型信息的控制 信令。
较佳的, 发送模块 110通过无线帧中特定子帧的特定时频位置发送控制信令。
发送模块 110通过无线帧中特定子帧的特定时频位置发送控制信令的方式有很多种。 较佳的, 发送模块 110通过系统广播发送控制信令。
较佳的, 发送模块 110通过 MIB消息或 SIB消息发送控制信令。
较佳的,发送模块 110通过固定为下行传输的子帧、特殊子帧中的下行导频时隙的特定 资源位置、 特殊子帧中的保护时隙的特定资源位置和下行子帧的特定资源位置中的一种发 送控制信令。
发送模块 110可以通过空中接口以每 N个无线帧为周期发送控制信令;其中 N为正整数。 较佳的,发送模块 110发送控制信令之前, 向邻小区的网络侧设备发送承载控制信令的 资源的传输信息。
较佳的, 本发明实施例的无线帧包括传输方向可变的可变子帧和 /或传输方向固定不 变的固定子帧。
较佳的,信息确定模块 100设置一定时间长度中固定子帧在类型 bitmap中对应比特位的 第一标识, 以及设置时间长度中可变子帧在类型 bitmap中对应比特位的第二标识, 并将类 型 bitmap作为子帧类型信息; 或根据类型配置模式和第一序号的对应关系, 确定一定时间 长度中的固定子帧和可变子帧的类型配置模式对应的第一序号, 并将确定的第一序号作为 子帧类型信息。
较佳的, 控制信令还包括传输方向信息; 信息确定模块 100根据本小区配置的无线帧 中的子帧, 确定传输方向信息。
较佳的,信息确定模块 100设备设置一定时间长度中固定子帧在传输方向 bitmap中对应 比特位的第三标识, 以及设置时间长度中可变子帧在传输方向 bitmap中对应比特位的第四
标识, 并将传输方向 bitmap作为传输方向信息; 或根据传输方向配置格式和第二序号的对 应关系, 确定一定时间长度中的固定子帧和可变子帧的传输方向配置格式对应的第二序 号, 并将确定的第二序号作为传输方向信息。
较佳的, 信息确定模块 100将传输方向信息和子帧类型信息组合成配置信息, 并将配 置信息置于控制信令中。
如图 4所示, 本发明实施例的第二种网络侧设备包括: 处理模块 200和配置模块 210 处理模块 200 , 用于通过空中接口接收来自邻小区的网络侧设备的包含邻小区子帧类 型信息的控制信令, 其中子帧类型信息是邻小区的网络侧设备根据配置的无线帧中的子帧 确定的;
配置模块 210 , 用于根据邻小区子帧类型信息, 对本小区无线帧中的子帧进行配置。 较佳的, 处理模块 200通过无线帧中特定子帧的特定时频位置接收控制信令。
较佳的, 处理模块 200接收控制信令之前, 与邻小区的网络侧设备进行下行同步后, 读取邻小区的系统广播消息。
较佳的, 处理模块 200接收控制信令之前, 通过网络接口或高层信令获得传输信息, 根据传输信息确定承载控制信令的资源。
较佳的, 本发明实施例的无线帧包括可变子帧和 /或固定子帧, 可变子帧是传输方向 可变的子帧, 固定子帧是传输方向固定不变的子帧。
较佳的, 配置模块 210在不能检测本小区与发送控制信令的邻小区之间的千扰强度或 能够检测本小区与发送控制信令的邻小区之间的千扰强度, 且千扰强度不小于阈值时, 如 果需要配置的子帧在邻小区是可变子帧, 不使用该子帧或降低该子帧的使用优先级。
具体的, 配置模块 210将不使用的子帧配制成 MBSFN子帧或 ABS子帧或上行子帧但不 进行上行调度。
如果控制信令包括传输方向信息, 配置模块 210在不能检测本小区与发送控制信令的 邻小区之间的千扰强度时, 配置的子帧类型和传输方向与邻小区中同一子帧标识的子帧类 型和传输方向相同。
较佳的, 配置模块 210在能够检测本小区与发送控制信令的邻小区之间的千扰强度, 且千扰强度小区阈值时, 自主对本小区无线帧中的子帧进行配置; 在能够检测本小区与发 送控制信令的邻小区之间的千扰强度, 且千扰强度不小区阈值时, 根据默认配置信息对本 小区无线帧中的子帧进行配置, 或根据网络侧下发的统一配置信息对本小区无线帧中的子 帧进行配置, 或在控制信令中还包括传输方向信息时, 根据收到的控制信令对本小区无线 帧中的子帧进行配置。
在实施中, 第一种网络侧设备也可能作为接收方。 第二种网络侧设备也可能作为发送 方, 所以第一网络侧设备和第二网络侧设备的功能可以合在一个实体中 (即第一网络侧设
备和第二网络侧设备的模块在一个实体中), 根据需要选择使用第一网络侧设备的功能或 第二网络侧设备的功能。
如图 5所示, 本发明实施例传输信息的方法包括下列步骤:
步骤 501、 网络侧设备 # ^据本小区配置的无线帧中的子帧, 确定子帧类型信息。
步骤 502、 网络侧设备通过空中接口向邻小区的网络侧设备发送含有子帧类型信息的 控制信令。
其中, 这里的邻小区是同频邻小区或异频邻小区; 本小区和邻小区可以处于同一个 TDD网络或不同 TDD网络。
在实施中, 可以在无线帧中预先设置一些特定子帧的特定时频位置, 步骤 502中, 网 络侧设备可以通过无线帧中特定子帧的特定时频位置发送控制信令。 具体哪些子帧的哪些 时频位置可以作为特定子帧的特定时频位置可以在协议中规定也可以由高层通知网络侧 设备。
网络侧设备通过无线帧中特定子帧的特定时频位置发送控制信令的方式有很多种, 下 面列举几种。
方式一、 网络侧设备通过系统广播发送控制信令, 比如通过小区系统广播中的 MIB消 息或 SIB消息发送控制信令, 也可以通过新的系统广播消息发送控制信令。
方式二、 网络侧设备通过固定为下行传输的子帧发送控制信令。 比如子帧 0、 子帧 1、 子帧 5和子帧 6中的一个或多个。
方式三、 网络侧设备通过特殊子帧中的下行导频时隙的特定资源位置或特殊子帧中的 保护时隙的特定资源位置发送控制信令。
方式四、 网络侧设备通过下行子帧的特定资源位置发送控制信令。
需要说明的是, 本发明实施例并不局限于上述四种方式, 其他能够通过空口发送含有 子帧类型信息的控制信令的方式都适用本发明实施例。
较佳的, 网络侧设备通过空中接口以每 N个无线帧为周期发送控制信令;其中 N为正整 数。 比如 N是 5 , 则可以计算无限帧的数量, 到第 5个无线帧就发送一次控制信令; 然后清 零继续计算。
N具体取多少可以根据需要在协议中规定或者由高层通知。
需要说明的是, 不管釆用哪种发送方式以及 N的取值是多少, 发送方和接收方都需要 保持一致。 具体可以在协议中规定或者发送方和接收方协商确定或者都由高层通知。
如果釆用发送方和接收方协商确定, 较佳的一种方式是网络侧设备发送控制信令之 前, 向邻小区的网络侧设备发送承载控制信令的资源的传输信息。
这里的传输信息包括但不限于下列信息中的至少一种:
承载控制信令的子帧的位置、 发送控制信令的周期、 承载控制信令的资源位置信息、
OFDM符号、 频域子载波、 PRB、 码道等资源信息。
其中, 传输信息的发送方式有很多。 比如通过网络接口 (例如 OAM读取传输信息; 直 接读取携带传输信息的高层信令获得传输信息。
需要说明的是, 本发明实施例并不局限于上述几种方式, 其他能够发送传输信息的方 式都适用本发明实施例。
其中, 本发明实施例的无线帧包括传输方向可变的可变子帧和 /或传输方向固定不变 的固定子帧表示三种情况。 1、 无线帧中的子帧全是可变子帧; 2、 无线帧中的子帧全是固 定子帧; 3、 无线帧中的子帧有可变子帧和固定子帧。
可变子帧是根据需要可以进行可以动态配置。 比如当前周期是上行下个周期就有可能 变成下行, 固定子帧是传输方向不会发生变化的子帧。
步骤 501中, 网络侧设备确定子帧类型信息的方式有很多种, 下面列举几种。
方式一、 网络侧设备设置一定时间长度中固定子帧在类型 bitmap (比特位图) 中对应 比特位的第一标识, 以及设置时间长度中可变子帧在类型 bitmap中对应比特位的第二标识, 并将类型 bitmap作为子帧类型信息。
在实施中, 类型 bitmap可以只表示一定时间长度中固定子帧的子帧类型信息。
假设时间长度是 10ms (即一个无线帧长度), 子帧 0、 子帧 1、 子帧 2、 子帧 5、 子帧 6和 子帧 7是固定子帧。 'Τ,表示固定子帧, "0"表示可变子帧,则如表 1所示,具体的类型 bitmap 是 1110011100。
在实施中, 类型 b it m ap可以只表示一定时间长度中可变子帧的子帧类型信息。
假设时间长度是 10ms (即一个无线帧长度), 子帧 3、 子帧 4、 子帧 8和子帧 9是可变子 帧。 " Γ表示固定子帧, "0"表示可变子帧,则如表 2所示,具体的类型 bitmap是 0001100011。
具体时长可以在协议中规定, 也可以由高层通知。 根据需要还可以对设定的时长进行 更新。
具体类型 bitmap表示哪些子帧、 每个比特位对应的子帧以及每个比特位标识的含义可 以在协议中规定, 还可以由高层通知。
方式二、 网络侧设备根据设置的类型配置模式和第一序号的对应关系, 确定一定时间 长度中的固定子帧和可变子帧的类型配置模式对应的第一序号, 并将确定的第一序号作为 子帧类型信息。
类型配置模式和第一序号的对应关系可以参见表 3。
类型配置模式和第一序号的对应关系可以预先在协议中规定, 也可以由高层通知。 根 据需要还可以对配置格式和序号的对应关系进行更新。
由于不是动态分配时, 网络接口已经交互了上下行配置信息。 因此, 在实施中如果通 知某子帧为固定子帧, 其传输方向与已经通知的上下行配置信息所指示的含义相同; 如果
通知某个子帧为可变子帧, 其传输方向与已经通知的上下行配置信息所指示的含义无关。 较佳的, 网络侧设备还可以将传输方向信息置于控制信令中。 传输方向信息表示每个 子帧是上行传输还是下行传输
具体的, 步骤 501中, 网络侧设备还可以根据本小区配置的无线帧中的子帧, 确定传 输方向信息。
网络侧设备确定传输方向信息的方式有很多种, 下面列举几种。
方式一、 网络侧设备设置一定时间长度中固定子帧在传输方向 bitmap中对应比特位的 第三标识, 以及设置时间长度中可变子帧在传输方向 bitmap中对应比特位的第四标识, 并 将传输方向 bitmap作为传输方向信息。
假设时间长度是 10ms (即一个无线帧长度)。 子帧 2、 子帧 7、 子帧 8和子帧 9的传输方 向是上行。 " 1 " 表示传输方向是上行, "0" 表示传输方向是下行, 则如表 4所示, 具体的 传输方向 bitmap是 0010000111。
具体时长可以在协议中规定, 也可以由高层通知。 根据需要还可以对设定的时长进行 更新。
具体传输方向 bitmap表示哪些子帧、 每个比特位对应的子帧以及每个比特位标识的含 义可以在协议中规定, 还可以由高层通知。
方式二、 网络侧设备根据传输方向配置格式和第二序号的对应关系, 确定一定时间长 度中的固定子帧和可变子帧的传输方向配置格式对应的第二序号, 并将确定的第二序号作 为传输方向信息。
传输方向配置格式和第二序号的对应关系可以参见表 5。
假设时间长度是 10ms (即一个无线帧长度), 子帧 2、 子帧 3、 子帧 4和子帧 7的传输方 向是上行; 子帧 0、 子帧 1、 子帧 5、 子帧 6、 子帧 8和子帧 9的传输方向是下行。 根据表 5就 可以确定第一序号是 3。
类型配置模式和第一序号的对应关系可以预先在协议中规定, 也可以由高层通知。 根 据需要还可以对配置格式和序号的对应关系进行更新。
步骤 502中, 网络侧设备可以将传输方向信息和子帧类型信息通过两个不同的控制信 令发送; 也可以将传输方向信息和子帧类型信息都置于同一个控制信令中。
如果网络侧设备将传输方向信息和子帧类型信息都置于同一个控制信令中, 则网络侧 设备将传输方向信息和子帧类型信息组合成配置信息, 并将配置信息置于控制信令中。
具体的配置信息可以是类型 bitmap+传输方向 bitmap; 类型 bitmap+第二序号; 第一序号
+传输方向 bitmap; 第一序号 +第二序号中的一种。
具体釆用那种可以在协议中规定; 还可以由高层通知。
如果配置信息可以是类型 bitmap+传输方向 bitmap, 可以前半部分是类型 bitmap, 后半
部分是传输方向 bitmap; 也可以前半部分是传输方向 bitmap, 后半部分是类型 bitmap; 还可 以将类型 bitmap和传输方向 bitmap混合在一起。
如果是将类型 bitmap和传输方向 bitmap混合在一起, 可以直接将每个子帧的子帧类型 信息与传输方向信息用多于一个 bit信息通知给邻小区。
假设时间长度是 10ms (即一个无线帧长度), 子帧 0、 子帧 1、 子帧 2、 子帧 5、 子 帧 6和子帧 7是固定子帧, 子帧 3、子帧 4、子帧 8和子帧 9是可变子帧 "Γ表示固定子帧, "0" 表示可变子帧; 子帧 2、 子帧 7、 子帧 8和子帧 9传输方向是上行, 子帧 0、 子帧 1、 子帧 3、 子帧 4、 子帧 5和子帧 6传输方向是下行, 1" 表示传输方向是上行, "0" 表示传输方向是下 行, 则如表 6所示。 具体的配置信息是 00000110100000011111。
其中, 根据需要网络侧设备还可以将下列信息中的一种或多种置于控制信令中: 本小区的小区标识、 本小区的 PLMN标识和邻小区的小区标识。
如图 6所示, 本发明实施例配置子帧的方法包括下列步骤:
步骤 601、 网络侧设备通过空中接口接收来自邻小区的网络侧设备的包含邻小区子帧 类型信息的控制信令, 其中子帧类型信息是邻小区的网络侧设备根据配置的无线帧中的子 帧确定的。
步骤 602、 网络侧设备才 居邻小区子帧类型信息, 对本小区无线帧中的子帧进行配置。 步骤 601中, 网络侧设备通过无线帧中特定子帧的特定时频位置接收控制信令。
具体承载控制信令的资源传输信息需要发送方和接收方保持一致。 具体可以在协议中 规定或者发送方和接收方协商确定或者都由高层通知。
如果釆用发送方和接收方协商确定, 较佳的一种方式是步骤 601之前, 网络侧设备接 收邻小区的网络侧设备发送的承载控制信令的资源的传输信息。
这里的传输信息包括但不限于下列信息中的至少一种:
承载控制信令的子帧的位置、 发送控制信令的周期、 承载控制信令的资源位置信息、 OFDM符号、 频域子载波、 PRB、 码道等资源信息。
其中, 传输信息的发送方式有很多。 比如通过网络接口 (例如 OAM接口)读取传输信 息; 直接读取携带传输信息的高层信令获得传输信息。
需要说明的是, 本发明实施例并不局限于上述几种方式, 其他能够发送传输信息的方 式都适用本发明实施例。
较佳的, 网络侧设备接收控制信令之前还可以与邻小区的网络侧设备进行下行同步, 然后读取邻小区的系统广播信息, 从而知道邻小区的信息。
如果邻小区的网络侧设备通过系统广播信息传输控制信令, 则网络侧设备读取邻小区 的系统广播信息时就可以得到控制信令。 否则, 读取邻小区的系统广播信息之后 , 接收控 制信令。
其中, 本发明实施例的无线帧包括可变子帧和 /或固定子帧表示三种情况。 1、 无线 帧中的子帧全是可变子帧; 2、 无线帧中的子帧全是固定子帧; 3、 无线帧中的子帧有可变 子帧和固定子帧。
较佳的, 网络侧设备还可以判断是否能够检测本小区与发送控制信令的邻小区之间的 千扰强度。
这里的千扰强度包括但不限于下列值中的一种:
RSRP值、 RIP值、 CQI值和 RSRQ值。
在确定不能够检测本小区与发送控制信令的邻小区之间的千扰强度时, 如果需要配置 的子帧在邻小区是可变子帧, 则网络侧设备不使用该子帧或降低该子帧的使用优先级。
具体的,网络侧设备可以将不使用的子帧配制成 MBSFN子帧或 ABS或上行子帧但不进 行上行调度。
如果控制信令包括传输方向信息, 并且确定不能够检测本小区与发送控制信令的邻小 区之间的千扰强度, 如果需要配置的子帧在邻小区是可变子帧时, 网络侧设备可以配置的 子帧类型和传输方向与邻小区中同一子帧标识的子帧类型和传输方向相同。
在确定不能够检测本小区与发送控制信令的邻小区之间的千扰强度, 如果需要配置的 子帧在邻小区是固定子帧, 网络侧设备可以配置的子帧类型和传输方向与邻小区中同一子 帧标识的子帧类型和传输方向相同。
由于固定子帧的传输方向可以根据预先设定的信息或上下行配置信息确定, 所以控制 信令中如果没有包括传输方向信息, 也可以知道固定子帧的传输方向。 当然, 如果控制信 令中包括传输方向信息, 则以控制信令中的传输方向信息为准。
其中, 如果网络侧设备确定能够检测本小区与发送控制信令的邻小区之间的千扰强 度, 则进一步将千扰强度与阈值进行比较。 具体阈值的设定可以根据经验值或仿真结果在 协议中规定或由高层通知。 不同的千扰强度对应不同的阈值。
如果千扰强度不小于阈值, 并且需要配置的子帧在邻小区是可变子帧时, 网络侧设备 不使用该子帧或降低该子帧的使用优先级。 不使用子帧的具体方式与上述不使用子帧的方 式相同, 在此不再赘述。
如果千扰强度不小于阈值, 不管是可变子帧还是固定子帧, 网络侧设备都可以根据默 认配置信息对本小区无线帧中的子帧进行配置, 或根据网络侧下发的统一配置信息对本小 区无线帧中的子帧进行配置 , 或在控制信令中还包括传输方向信息时, 根据收到的控制信 令对本小区无线帧中的子帧进行配置。
如果千扰强度小于阈值, 不管是可变子帧还是固定子帧, 网络侧设备自主对本小区无 线帧中的子帧进行配置。
在自主配置时, 网络侧设备可以考虑业务需求、信道负荷、终端数量等情况中的一种,
也可以考虑多种, 然后才 居具体情况对本小区无线帧中的子帧进行配置。
其中, 图 5和图 6可以合成一个流程, 形成一个新的配置子帧的方法, 即先执行步骤 501 和步骤 502 , 再执行步骤 601和步骤 602。
本领域内的技术人员应明白, 本发明的实施例可提供为方法、 系统、 或计算机程序产 品。 因此, 本发明可釆用完全硬件实施例、 完全软件实施例、 或结合软件和硬件方面的实 施例的形式。 而且, 本发明可釆用在一个或多个其中包含有计算机可用程序代码的计算机 可用存储介盾 (包括但不限于磁盘存储器、 CD-ROM、 光学存储器等)上实施的计算机程 序产品的形式。
本发明是参照根据本发明实施例的方法、 设备(系统)、 和计算机程序产品的流程图 和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图和 /或方框图中的每一流 程和 /或方框、 以及流程图和 /或方框图中的流程和 /或方框的结合。 可提供这些计算机 程序指令到通用计算机、 专用计算机、 嵌入式处理机或其他可编程数据处理设备的处理器 以产生一个机器, 使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用 于实现在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方 式工作的计算机可读存储器中, 使得存储在该计算机可读存储器中的指令产生包括指令装 置的制造品, 该指令装置实现在流程图一个流程或多个流程和 /或方框图一个方框或多个 方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上, 使得在计算机 或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理, 从而在计算机或其他 可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和 /或方框图一个 方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例, 但本领域内的技术人员一旦得知了基本创造性概 念, 则可对这些实施例作出另外的变更和修改。 所以, 所附权利要求意欲解释为包括优选 实施例以及落入本发明范围的所有变更和修改。
由于本发明实施例通过空中接口将本小区的控制信令发送给邻小区, 从而在小区的上 下行业务比例需求进行动态改变时, 能够获取邻区的配置信息, 提高了系统性能; 进一步 的,提高了子帧配置信息的更新速度,以支持更为动态的子帧分配和相应的千扰避免操作 , 在小区基站之间没有网络接口, 或者网络接口延时较大的场景中尤为有效。
由于本发明实施例网络侧设备根据收到的包含子帧类型信息的控制信令, 确定本小区 无线帧中的每个子帧的类型, 并对本小区无线帧中的子帧进行配置, 实现邻区千扰共存。
显然, 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和
范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。
显然, 本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实 施例的精神和范围。 这样, 倘若本发明实施例的这些修改和变型属于本发明权利要求及其 等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。
Claims
1、 一种子帧配置信息通知的方法, 其特征在于, 该方法包括:
网络侧设备 #>据本小区配置的无线帧中的子帧, 确定子帧类型信息;
所述网络侧设备通过空中接口向邻小区的网络侧设备发送含有子帧类型信息的控制 信令。
2、 如权利要求 1所述的方法, 其特征在于, 所述网络侧设备发送所述控制信令包括: 所述网络侧设备通过无线帧中特定子帧的特定时频位置发送所述控制信令。
3、 如权利要求 2所述的方法, 其特征在于, 所述网络侧设备发送所述控制信令包括: 所述网络侧设备通过系统广播发送所述控制信令。
4、 如权利要求 3所述的方法, 其特征在于, 所述网络侧设备发送所述控制信令包括: 所述网络侧设备通过主信息块 MIB消息或系统信息块 SIB消息发送所述控制信令。
5、 如权利要求 2所述的方法, 其特征在于, 所述网络侧设备发送所述控制信令包括: 所述网络侧设备通过固定为下行传输的子帧、 特殊子帧中的下行导频时隙的特定资源 位置、 特殊子帧中的保护时隙的特定资源位置和下行子帧的特定资源位置中的一种发送所 述控制信令。
6、 如权利要求 5所述的方法, 其特征在于, 所述固定为下行传输的子帧是子帧 0、 子 帧 1、 子帧 5和子帧 6中的一个或多个。
7、 如权利要求 1 ~ 6任一所述的方法, 其特征在于, 所述网络侧设备发送所述控制信 令包括:
所述网络侧设备通过空中接口以每 N个无线帧为周期发送所述控制信令;
其中 N为正整数。
8、 如权利要求 1 ~ 6任一所述的方法, 其特征在于, 所述网络侧设备发送所述控制信 令之前还包括:
所述网络侧设备向邻小区的网络侧设备发送承载控制信令的资源的传输信息。
9、 如权利要求 1所述的方法, 其特征在于, 所述无线帧包括传输方向可变的可变子帧 和 /或传输方向固定不变的固定子帧。
10、 如权利要求 9所述的方法, 其特征在于, 所述网络侧设备确定子帧类型信息包括: 所述网络侧设备设置一定时间长度中固定子帧在类型比特位图 bitmap中对应比特位的 将类型 bitmap作为子帧类型信息; 或
所述网络侧设备根据设置的类型配置模式和第一序号的对应关系, 确定一定时间长度 中的固定子帧和可变子帧的类型配置模式对应的第一序号, 并将确定的第一序号作为子帧 类型信息。
11、 如权利要求 9所述的方法, 其特征在于, 所述控制信令还包括传输方向信息; 所述网络侧设备发送控制信令之前还包括:
所述网络侧设备根据本小区配置的无线帧中的子帧, 确定传输方向信息。
12、如权利要求 11所述的方法, 其特征在于, 所述网络侧设备确定传输方向信息包括: 所述网络侧设备设置一定时间长度中固定子帧在传输方向 bitmap中对应比特位的第三 标识, 以及设置所述时间长度中可变子帧在传输方向 bitmap中对应比特位的第四标识, 并 将传输方向 bitmap作为传输方向信息; 或
所述网络侧设备根据设置的传输方向配置格式和第二序号的对应关系, 确定一定时间 长度中的固定子帧和可变子帧的传输方向配置格式对应的第二序号, 并将确定的第二序号 作为传输方向信息。
13、如权利要求 11所述的方法, 其特征在于, 所述网络侧设备确定传输方向信息之后, 发送控制信令之前还包括:
所述网络侧设备将所述传输方向信息和所述子帧类型信息组合成配置信息, 并将配置 信息置于所述控制信令中。
14、 一种子帧配置的方法, 其特征在于, 该方法包括:
网络侧设备通过空中接口接收来自邻小区的网络侧设备的包含邻小区子帧类型信息 的控制信令, 其中所述子帧类型信息是邻小区的网络侧设备根据配置的无线帧中的子帧确 定的;
所述网络侧设备根据所述邻小区子帧类型信息, 对本小区无线帧中的子帧进行配置。
15、如权利要求 14所述的方法, 其特征在于, 所述网络侧设备接收所述控制信令包括: 所述网络侧设备通过无线帧中特定子帧的特定时频位置接收所述控制信令。
16、如权利要求 15所述的方法, 其特征在于, 所述网络侧设备接收所述控制信令包括: 所述网络侧设备与所述邻小区的网络侧设备进行下行同步, 读取所述邻小区的系统广 播消息, 所述广播消息中含有控制信令。
17、 如权利要求 14 ~ 16任一所述的方法, 其特征在于, 所述网络侧设备接收所述控制 信令之前还包括:
所述网络侧设备通过网络接口或高层信令获得传输信息;
所述网络侧设备根据所述传输信息确定承载控制信令的资源。
18、 如权利要求 14 ~ 16任一所述的方法, 其特征在于, 所述无线帧包括可变子帧和 / 或固定子帧, 可变子帧是传输方向可变的子帧, 固定子帧是传输方向固定不变的子帧。
19、 一种子帧配置信息通知的设备, 其特征在于, 该设备包括:
信息确定模块, 用于根据本小区配置的无线帧中的子帧, 确定子帧类型信息; 发送模块, 用于通过空中接口向邻小区的网络侧设备发送含有子帧类型信息的控制信 令。
20、 如权利要求 19所述的设备, 其特征在于, 所述发送模块具体用于:
通过无线帧中特定子帧的特定时频位置发送所述控制信令。
21、 如权利要求 19所述的设备, 其特征在于, 所述发送模块具体用于:
通过系统广播发送所述控制信令。
22、 如权利要求 19所述的设备, 其特征在于, 所述发送模块具体用于:
通过 MIB消息或 SIB消息发送所述控制信令。
23、 如权利要求 19所述的设备, 其特征在于, 所述发送模块具体用于:
通过固定为下行传输的子帧、 特殊子帧中的下行导频时隙的特定资源位置、 特殊子帧 中的保护时隙的特定资源位置和下行子帧的特定资源位置中的一种发送所述控制信令。
24、 如权利要求 18 - 23任一所述的设备, 其特征在于, 所述发送模块具体用于: 通过空中接口以每 N个无线帧为周期发送所述控制信令;
其中 N为正整数。
25、 如权利要求 18 - 23任一所述的设备, 其特征在于, 所述发送模块还用于: 发送所述控制信令之前, 向邻小区的网络侧设备发送承载控制信令的资源的传输信 息。
26、 如权利要求 18所述的设备, 其特征在于, 所述无线帧包括传输方向可变的可变子 帧和 /或传输方向固定不变的固定子帧。
27、 如权利要求 26所述的设备, 其特征在于, 所述信息确定模块具体用于: 设置一定时间长度中固定子帧在类型 bitmap中对应比特位的第一标识, 以及设置所述 时间长度中可变子帧在类型 bitmap中对应比特位的第二标识, 并将类型 bitmap作为子帧类 型信息; 或根据设置的类型配置模式和第一序号的对应关系, 确定一定时间长度中的固定 子帧和可变子帧的类型配置模式对应的第一序号, 并将确定的第一序号作为子帧类型信 息。
28、 如权利要求 26所述的设备, 其特征在于, 所述控制信令还包括传输方向信息; 所述信息确定模块还用于:
根据本小区配置的无线帧中的子帧, 确定传输方向信息。
29、 如权利要求 28所述的设备, 其特征在于, 所述信息确定模块具体用于: 设备设置一定时间长度中固定子帧在传输方向 bitmap中对应比特位的第三标识, 以及 设置所述时间长度中可变子帧在传输方向 bitmap中对应比特位的第四标识, 并将传输方向 bitmap作为传输方向信息; 或根据设置的传输方向配置格式和第二序号的对应关系, 确定 一定时间长度中的固定子帧和可变子帧的传输方向配置格式对应的第二序号, 并将确定的 第二序号作为传输方向信息。
30、 如权利要求 28所述的设备, 其特征在于, 所述信息确定模块还用于:
将所述传输方向信息和所述子帧类型信息组合成配置信息, 并将配置信息置于所述控 制信令中。
31、 一种子帧配置的设备, 其特征在于, 该设备包括:
处理模块, 用于通过空中接口接收来自邻小区的网络侧设备的包含邻小区子帧类型信 息的控制信令, 其中所述子帧类型信息是邻小区的网络侧设备根据配置的无线帧中的子帧 确定的;
配置模块, 用于根据所述邻小区子帧类型信息, 对本小区无线帧中的子帧进行配置。
32、 如权利要求 31所述的设备, 其特征在于, 所述处理模块具体用于:
通过无线帧中特定子帧的特定时频位置接收所述控制信令。
33、 如权利要求 32所述的设备, 其特征在于, 所述处理模块还用于:
接收所述控制信令之前, 与所述邻小区的网络侧设备进行下行同步后, 读取所述邻小 区的系统广播消息。
34、 如权利要求 31 ~ 33任一所述的设备, 其特征在于, 所述处理模块具体用于: 接收所述控制信令之前, 通过网络接口或高层信令获得传输信息, 根据所述传输信息 确定承载控制信令的资源。
35、 如权利要求 31 ~ 33任一所述的设备, 其特征在于, 所述无线帧包括可变子帧和 / 或固定子帧, 可变子帧是传输方向可变的子帧, 固定子帧是传输方向固定不变的子帧。
36、 一种子帧配置的系统, 其特征在于, 该系统包括:
网络侧设备, 用于根据本小区配置的无线帧中的子帧, 确定子帧类型信息, 通过空中 接口向邻小区的网络侧设备发送含有子帧类型信息的控制信令;
收到所述控制信令的网络侧设备, 用于通过空中接口接收来自邻小区的网络侧设备的 包含邻小区子帧类型信息的控制信令, 根据所述邻小区子帧类型信息, 对本小区无线帧中 的子帧进行配置。
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| CN102026209B (zh) * | 2010-12-21 | 2014-04-16 | 大唐移动通信设备有限公司 | 一种传输信息和配置子帧的方法、系统及设备 |
| CN102143499A (zh) * | 2011-03-29 | 2011-08-03 | 电信科学技术研究院 | 子帧配置信息通知和子帧配置的方法、系统及设备 |
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| CN101795473A (zh) * | 2009-02-03 | 2010-08-04 | 大唐移动通信设备有限公司 | 特殊子帧配置方式及时域资源使用方式的确定方法和装置 |
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