WO2013078967A1 - 用户设备收发转化时间的处理方法及装置 - Google Patents
用户设备收发转化时间的处理方法及装置 Download PDFInfo
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- WO2013078967A1 WO2013078967A1 PCT/CN2012/085220 CN2012085220W WO2013078967A1 WO 2013078967 A1 WO2013078967 A1 WO 2013078967A1 CN 2012085220 W CN2012085220 W CN 2012085220W WO 2013078967 A1 WO2013078967 A1 WO 2013078967A1
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- base station
- user equipment
- time
- signaling
- information
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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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
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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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
- H04W16/06—Hybrid resource partitioning, e.g. channel borrowing
Definitions
- the present invention relates to the field of wireless communication systems, and in particular, to a method and apparatus for processing a transmission and reception time of a user equipment. Background technique
- the low power base station and the macro base station perform full or partial spectrum multiplexing, so that the low power base station and the macro base station generate co-channel (or the same frequency) interference with each other.
- an interfering base station (a first base station, for example, a macro base station, a micro base station, a relay base station, a home base station, etc.) and an interfered base station (a second base station) can be configured with different TDDs.
- TDD Time Divi s ion Duplex
- the ratio is such that the uplink subframe of the first base station is more than the uplink subframe of the second base station, and the first base station can configure some uplink subframes corresponding to the downlink subframe of the second base station as a subframe (Fake) Upl ink Subf rame ) to reduce interference to the downlink channel transmission of the second base station.
- the so-called fake uplink subframe means that although the subframe is an uplink subframe, the scheduling or configuration method can be used to carry as few service data services and control data services as possible on the uplink subframe, thereby reducing the pair.
- the time shifting technique can also eliminate the problem of co-channel interference between cells.
- the downlink SCH cannot be sent to the second base station because the UE is already in the uplink sending state in the TDD ratio of the first base station (Synchroniza)
- the signal carried by the t ion Channe l (synchronous channel) is received and detected, and thus the CRS cannot be obtained (Ce l l- spec if ic reference s igna ls , cell specific parameter Check the position of the signal), thus affecting the UE's normal neighbor measurement.
- Embodiments of the present invention provide a processing method and apparatus for receiving and transmitting a conversion time of a user equipment, which solves the problem that the UE cannot perform normal neighboring area measurement when canceling co-channel interference between base stations.
- a processing method for sending and receiving a conversion time of a user equipment including:
- the user equipment determines, according to the first indication information, a transmission and reception conversion time that needs to be delayed; and the user equipment determines, according to the delayed transmission and reception conversion time, a downlink time that can perform neighboring area measurement on the second base station;
- the user equipment performs neighbor cell measurement on the second base station at the downlink time.
- a user equipment including:
- a receiving unit configured to receive first indication information sent by the first base station
- a determining unit configured to determine, according to the first indication information received by the receiving unit, a transmission and reception conversion time that needs to be delayed; and determine, according to the required transmission and reception conversion time, a downlink that can perform neighboring area measurement on the second base station Moment
- a processing method for sending and receiving a conversion time of a user equipment including:
- the first base station sends the first indication information to the user equipment, so that the user equipment determines, according to the first indication information, a transceiving conversion time that needs to be delayed, and further receives and receives a conversion time according to the required delay. Determining a downlink time at which a neighboring cell measurement can be performed on the second base station and under the
- a base station comprising:
- a confirmation unit configured to confirm first indication information that needs to be sent to the user equipment
- a sending unit configured to send the first indication information that is confirmed by the confirming unit to the user equipment, to enable the user equipment to determine, according to the first indication information, a transmission and reception conversion time that needs to be delayed, and further according to the The delayed transmission and reception conversion time is determined to determine a downlink time at which the second base station can perform the neighbor cell measurement, and the neighboring cell measurement is performed on the second base station at the downlink time.
- the method and device for processing a sending and receiving time of a user equipment provided by the embodiment of the present invention, first, the first base station sends the first indication information to the user equipment, and then the user equipment determines, according to the first indication information, the sending and receiving conversion time that needs to be delayed. And determining, by the user equipment, a downlink time that can perform neighbor cell measurement on the second base station according to the required transmission and reception conversion time, where the user equipment performs neighbor cell measurement on the second base station.
- the problem of the co-channel interference between the base stations is eliminated, and the user equipment that is served by the first base station can perform normal neighbor cell measurement on the second base station by delaying the transmission and reception time of the user equipment. At the same time as the channel quality, the neighboring area measurement is performed.
- FIG. 1 is a flow chart of a processing method for receiving and sending a conversion time of a user equipment according to Embodiment 1 of the present invention
- FIG. 2 is a schematic structural diagram of a user equipment according to Embodiment 1 of the present invention.
- FIG. 3 is a flowchart of a method for processing a sending and receiving conversion time of a user equipment according to Embodiment 1 of the present invention
- FIG. 4 is a schematic structural diagram of a base station according to Embodiment 1 of the present invention.
- FIG. 5 is a flowchart of a method for processing a sending and receiving conversion time of a user equipment according to Embodiment 2 of the present invention
- FIG. 6 is a schematic structural diagram of a user equipment according to Embodiment 2 of the present invention.
- FIG. 8 is a flowchart of a method for processing a receiving and sending time of a user equipment according to Embodiment 2 of the present invention
- FIG. 8 is a schematic structural diagram of a base station according to Embodiment 2 of the present invention
- Figure 9 is a schematic diagram of a flexible intraframe intraframe application. detailed description
- This embodiment provides a processing method for sending and receiving a conversion time of a user equipment. As shown in FIG. 1, the method includes:
- the user equipment receives the first indication information sent by the first base station.
- the first base station may be a serving base station of the user equipment, or may be a communication entity that has an interface with the serving base station of the user equipment and has a function of sending information, and the interface connection may be an X2 interface, an S1 interface, and a fiber interface.
- the wireless interface is not limited herein; the communication entity may be a remote radio unit having the interface connected to the serving base station of the user equipment.
- RRU remote radio uni t
- RRU remote radio uni t
- MME mobility management entity
- Mobi le Management Ent i ty The serving base station of the user equipment has a non-serving base station connected to the interface, which is not limited herein.
- the user equipment may receive first indication information that is sent by the first base station by using the first signaling.
- the first indication information includes information about whether the user equipment needs to delay the transmission and reception conversion time and specific time information of the transmission and reception conversion delay
- the first signaling that is, the radio resource control RRC broadcast signaling may be used.
- RRC-specific signaling or physical layer signaling, indicating whether the user equipment needs to delay sending and receiving conversion time information and specific time information of sending and receiving conversion delay.
- the first signaling that is, the radio resource control RRC broadcast signaling, or the RRC dedicated signaling, or the physical layer signaling, may be used to indicate whether the user equipment needs to delay sending and receiving conversion time information, and The first signaling different from the foregoing signaling indicates specific time information of the user equipment to send and receive a conversion delay.
- the RRC broadcast signaling may be controlled by the first signaling, that is, the radio resource, or the RRC specialization The signaling is sent, or the physical layer signaling directly sends the first indication information to the user equipment.
- the user equipment may receive the first indication information that is sent by the first base station by using the first signaling.
- the first indication information includes the configuration information of the interference coordination mechanism used by the first base station and the configuration information of the first base station
- the first signaling that is, the radio resource control RRC broadcast may be used.
- the signaling is the radio resource control RRC broadcast signaling, or the RRC dedicated signaling, or the physical layer signaling indicates the configuration information of the interference coordination mechanism used by the first base station by the user equipment, and uses different information from the foregoing
- the first signaling of the command indicates configuration information of the first base station.
- the user equipment determines, according to the first indication information, a transmission and reception conversion time that needs to be delayed.
- the user equipment determines, according to the required transmission and reception conversion time, a downlink time that can perform neighbor cell measurement on the second base station.
- the second base station refers to a neighboring base station corresponding to a serving base station of the user equipment, And may be a neighboring base station that is interfered by the first base station, or may be a base station that has time shift information between the first base station and the first base station, where the time shift information may be an integer number of OFDM (
- the Orthogonal Frequency Division Multiplexing (OFDM) symbol may be an integer number of time slots, or may be an integer number of subframes, or may be an integer number of radio frames, which is not limited herein.
- the downlink time may be a time when the second base station performs downlink data transmission or a time when the user equipment performs downlink data reception, where the downlink time may be represented by an integer number of OFDM symbols, or an integer number of time slots may be used. It can also be represented by an integer number of subframes, and can also be represented by an integer number of radio frames, which is not limited herein.
- the user equipment performs neighbor cell measurement on the second base station at the downlink time.
- the neighboring cell measurement includes, but is not limited to, a channel quality indicator (CQI), a precoding matrix indicator (PMI), a rank indicator RI (Rank Indicator), an RRM (Radio Resource Management) related measurement, and the like.
- CQI channel quality indicator
- PMI precoding matrix indicator
- RI rank Indicator
- RRM Radio Resource Management
- the embodiment provides a user equipment.
- the apparatus includes: a receiving unit 21, a determining unit 22, and a measuring unit 23.
- the receiving unit 21 is configured to receive first indication information sent by the first base station.
- the first base station may be a serving base station of the user equipment, or may be a communication entity that has an interface with the serving base station of the user equipment and has a function of sending information, and the interface connection may be an X2 interface, an S1 interface, and a fiber interface.
- the wireless interface is not limited herein; the communication entity may be a remote radio unit having the interface connected to the serving base station of the user equipment.
- the remote radio unit may also be a mobility management entity (MME) that has the interface connection with the serving base station of the user equipment, and may also be a non-interface connection with the serving base station of the user equipment.
- MME mobility management entity
- the serving base station is not limited herein.
- the user equipment may receive first indication information that is sent by the first base station by using the first signaling.
- first indication information includes information about whether the user equipment needs to delay sending and receiving conversion time and specific time information of sending and receiving conversion delay
- a signaling that is, radio resource control RRC broadcast signaling, or RRC dedicated signaling, or physical layer signaling, indicates whether the user equipment needs to delay sending and receiving conversion time information and specific time information of the transceiving conversion delay.
- the first signaling that is, the radio resource control RRC broadcast signaling, or the RRC dedicated signaling, or the physical layer signaling, may be used to indicate whether the user equipment needs to delay sending and receiving conversion time information, and The first signaling different from the foregoing signaling indicates specific time information of the user equipment to send and receive a conversion delay.
- the RRC broadcast signaling may be controlled by the first signaling, that is, the radio resource, or the RRC specialization The signaling is sent, or the physical layer signaling directly sends the first indication information to the user equipment.
- the user equipment may receive the first indication information that is sent by the first base station by using the first signaling.
- the first indication information includes the configuration information of the interference coordination mechanism used by the first base station and the configuration information of the first base station
- the first signaling that is, the radio resource control RRC broadcast may be used.
- the signaling is the radio resource control RRC broadcast signaling, or the RRC dedicated signaling, or the physical layer signaling indicates the configuration information of the interference coordination mechanism used by the first base station by the user equipment, and uses different information from the foregoing
- the first signaling of the command indicates configuration information of the first base station.
- the determining unit 22 is configured to determine, according to the first indication information received by the receiving unit 21, a transceiving conversion time that needs to be delayed. And determining, according to the required transmission and reception conversion time, a downlink time at which the neighboring cell can be measured by the second base station.
- the second base station refers to a neighboring base station corresponding to the serving base station of the user equipment, and may be a neighboring base station interfered by the first base station, or may be in a sending time with the first base station.
- a base station on which time shift information is present where the time shift information may be an integer number of OFDM (Orthogonal Frequency Division Multiplexing) symbols, or may be an integer number of time slots. It can also be an integer number of subframes, or it can be an integer number of wireless Frames are not limited here.
- the downlink time may be a time when the second base station performs downlink data transmission or a time when the receiving unit 21 performs downlink data reception, where the downlink time may be represented by an integer number of OFDM symbols, or an integer number of times may be used.
- the slot is represented by an integer number of subframes, and may be represented by an integer number of radio frames, which is not limited herein.
- the base station performs neighbor cell measurement.
- the neighboring cell measurement includes, but is not limited to, a channel quality indicator CQI (Chenne l Qua li ty Indica tor), a precoding head matrix indicia PMI (Precoding Ma tr ix Indi ca tor ), a rank indicating RI ( Rank Indi ca tor ), RRM (Radio Resource Management) related measurements, etc.
- CQI Channel quality indicator
- PMI Precoding Ma tr ix Indi ca tor
- rank RI Rank Indi ca tor
- RRM Radio Resource Management
- This embodiment provides a processing method for sending and receiving a conversion time of a user equipment. As shown in FIG. 3, the method includes:
- the first base station confirms the first indication information that needs to be sent to the user equipment.
- the first base station may determine whether to send the first indication information to the user equipment according to the time offset information between the first base station and the second base station, and the first base station may further reduce the second base station according to whether the interference mechanism is used.
- the interference is used to determine whether to send the first indication information to the user equipment, and the first indication information may be sent to the user equipment according to other manners, which is not limited herein.
- the interference mechanism may be that the first base station uses a fake uplink sub-frame (fake UL subframe) configuration, or may use a low-power transmission subframe configuration or an approximate null transmission subframe configuration, or may be
- the fake UL subf rame configuration uses a time shifting technique in combination, and may be a low-power transmission subframe configuration or an approximate null transmission subframe configuration combined with a time shifting technique, which is not limited herein.
- the first base station sends the first indication information to the user equipment, so that the user equipment determines, according to the first indication information, a transmission and reception conversion time that needs to be delayed, and further receives and receives according to the required delay.
- the conversion time determines a downlink time at which the second base station can perform the neighbor cell measurement and performs the neighbor cell measurement on the second base station at the downlink time.
- the first base station may send the first indication information to the user equipment by using the first signaling.
- the first signaling may include: radio resource control RRC broadcast signaling, or RRC dedicated signaling, or physical layer signaling.
- the first indication information includes: information about whether the user equipment needs to delay the transmission and reception of the conversion time, and/or specific time information of the transmission and reception delay, or the first indication information includes: the interference used by the first base station Configuring the configuration information of the coordination mechanism and the configuration information of the first base station, so that the user equipment determines that the user equipment is configured according to the configuration information of the interference coordination mechanism used by the first base station and the configuration information of the first base station. Whether there is uplink service at the uplink time. Further, the configuration information of the interference coordination mechanism used by the first base station may be a fake uplink subframe (fake UL subframe) configuration information used by the first base station, or may be a low power used by the first base station.
- the configuration information of the interference coordination mechanism used by the first base station may be a fake uplink subframe (fake UL subframe) configuration information used by the first base station, or may be a low power used by the first base station.
- the configuration information of the transmit subframe or the approximate null transmit subframe may also be the configuration information of the fake UL subfram combined time shifting technique used by the first base station, or may be the low power transmit subframe used by the first base station.
- the configuration information of the configuration or the approximate null transmission subframe joint time shifting technology is not limited herein.
- the configuration information of the first base station may be a specific location of a FA subframe, or may be a specific location of a low power transmission subframe or an approximate null transmission subframe, or may be a first base station.
- the relative time shift information between the second base station and the second base station may also be any combination of the foregoing information, which is not limited herein.
- the first indication information and the indication method of the first signaling are the same as those described in FIG. 1, and details are not described herein again.
- a base station as shown in FIG. 4, the device includes: a confirming unit 41 and a sending unit 42.
- the confirmation unit 41 is configured to confirm the first indication information that needs to be sent to the user equipment.
- the determining unit 41 may determine, according to the time offset information between the first base station and the second base station, whether to send the first indication information to the user equipment, and the confirming unit 41 may further reduce the second base station according to whether the interference mechanism is used.
- the interference is used to determine whether to send the first indication information to the user equipment, and the first indication information may be sent to the user equipment according to other manners, which is not limited herein.
- the interference mechanism may be that the first base station uses a fake uplink subframe (fake UL Subf rame ) configuration, may also use low power transmission subframe configuration or approximate null transmission subframe configuration, may also be fake UL subf rame configuration joint use time shift technology, or low power transmission subframe configuration Alternatively, the approximate null transmission subframe configuration is combined with the time shifting technique, which is not limited herein.
- a fake uplink subframe (fake UL Subf rame ) configuration
- the approximate null transmission subframe configuration is combined with the time shifting technique, which is not limited herein.
- the sending unit 42 is configured to send, to the user equipment, the first indication information that is confirmed by the confirming unit 41, to enable the user equipment to determine, according to the first indication information, a transmission and reception conversion time that needs to be delayed, and further
- the delayed transmission and reception conversion time determines a downlink time at which a neighboring cell measurement can be performed on the second base station, and performs a neighboring cell measurement on the second base station at the downlink time.
- the first base station may send the first indication information to the user equipment by using the first signaling.
- the first signaling includes: radio resource control RRC broadcast signaling, or RRC-specific signaling, or physical layer signaling.
- the first indication information includes: information about whether the user equipment needs to delay the transmission and reception of the conversion time, and/or specific time information of the transmission and reception delay, or the first indication information includes: the interference used by the first base station Configuring the configuration information of the coordination mechanism and the configuration information of the first base station, so that the user equipment determines that the user equipment is configured according to the configuration information of the interference coordination mechanism used by the first base station and the configuration information of the first base station. Whether there is uplink service at the uplink time.
- the first indication information and the indication method of the first signaling are the same as those described in FIG. 1, and details are not described herein again.
- the method and device for processing a sending and receiving time of a user equipment provided by the embodiment of the present invention, first, the first base station sends the first indication information to the user equipment, and then the user equipment determines, according to the first indication information, the sending and receiving conversion time that needs to be delayed. And determining, by the user equipment, a downlink time that can perform neighbor cell measurement on the second base station according to the required transmission and reception conversion time, where the user equipment performs neighbor cell measurement on the second base station.
- the prior art can eliminate the co-channel interference problem between the base stations, the user equipment served by the first base station cannot perform the neighbor cell measurement on the second base station.
- the embodiment of the present invention eliminates co-channel interference between base stations. At the same time of the interference problem, by delaying the transmission and reception time of the user equipment, the normal neighboring area measurement can still be performed on the second base station, so that the neighboring area measurement is performed while ensuring the channel quality.
- This embodiment provides a processing method for sending and receiving a conversion time of a user equipment. As shown in FIG. 5, the method includes:
- the user equipment receives the first indication information sent by the first base station.
- the first base station may be a serving base station of the user equipment, or may be a communication entity that has an interface with the serving base station of the user equipment and has a function of sending information, and the interface connection may be an X2 interface, an S1 interface, and a fiber interface.
- the wireless interface is not limited herein; the communication entity may be a remote radio unit having the interface connected to the serving base station of the user equipment.
- RRU remote radio uni t
- RRU may also be a mobility management entity (MME, Mobi le Management Entity) having the interface connection with the serving base station of the user equipment, or may be the serving base station with the user equipment.
- MME mobility management entity
- Mobi le Management Entity Mobi le Management Entity
- the user equipment may receive first indication information that is sent by the first base station by using the first signaling.
- the first indication information includes information about whether the user equipment needs to delay the transmission and reception conversion time and specific time information of the transmission and reception conversion delay
- the first signaling that is, the radio resource control RRC broadcast signaling may be used.
- RRC-specific signaling, or physical layer signaling indicating whether the user equipment needs to delay sending and receiving conversion time information and specific time information of sending and receiving conversion delay.
- the first signaling that is, the radio resource control RRC broadcast signaling, or the RRC dedicated signaling, or the physical layer signaling, may be used to indicate whether the user equipment needs to delay sending and receiving conversion time information, and The first signaling different from the foregoing signaling indicates specific time information of the user equipment to send and receive a conversion delay.
- the RRC broadcast signaling may be controlled by the first signaling, that is, the radio resource, or the RRC specialization The signaling is sent, or the physical layer signaling directly sends the first indication information to the user equipment.
- the first base station may notify the user of the cell service to delay the sending and receiving conversion time by using the RRC broadcast signaling, and the content of the signaling bearer includes, but is not limited to, indicating whether the user equipment UE needs to delay.
- the transmission and reception conversion time indicates the transmission and reception conversion time that the UE needs to delay.
- the signaling may be carried in the existing RRC broadcast signaling, for example, may be carried in a physical broadcast channel (PBCH), and the redundant bit (bit) information is used to indicate whether the UE served by the cell needs to be delayed.
- PBCH physical broadcast channel
- the redundant bit (bit) information is used to indicate whether the UE served by the cell needs to be delayed.
- the transmission and reception time is further, and the lbit information can be used to directly indicate whether the UE needs to delay the transmission and reception conversion time.
- the delay time required by the UE may be the default between the first base station and the UE, for example, the existing transmission and reception of the UE may be performed. Delaying the conversion time based on the delay of 1 subframe; or using the redundant bit information to directly indicate the required transmission and reception delay time of the UE. For example, if the number of PBCH redundancy bits is X, 2 X can be expressed.
- the transmission delay time may be measured in units of orthogonal frequency division multiplexing (OFDM) symbols/subframes/frames. For example, in the above example, if the UE is notified to delay the time of one subframe, specific signaling may be utilized.
- One of the 2 X states is represented as lsf (1 subframe) or 0.
- the signaling may also be carried in a System Information Block (SIB), specifically, SIB-1/SIB-2/SIB-3, etc., and the information content of the bearer may be as described above.
- SIB System Information Block
- the field may be directly extended in the SIB information, where the extension field is used to indicate that the UE delays the transmission and reception conversion time, and the delayed transmission and reception conversion time can ensure that the UE can correctly interpret the SCH (synchronization channel) bearer information of the neighboring cell, thereby obtaining the CRS.
- the first base station may also notify the user served by the cell to delay the transmission and reception conversion time by using the RRC dedicated signaling.
- the content of the RRC dedicated signaling bearer includes, but is not limited to, indicating whether the UE needs to delay the conversion time, indicating that the UE needs to The specific time of delayed transmission and reception conversion, the RRC proprietary signaling can be valid for a group of users with the same characteristics. For example, the user who needs to perform the measurement of the neighboring area, that is, when the user who needs to perform the measurement of the neighboring area reads the RRC dedicated signaling, the transmission and reception conversion time of the signaling notification may be delayed according to the signaling content, so as to ensure that The neighboring area measurement is performed normally.
- the first base station may also notify the user served by the cell to delay the transmission and reception conversion time by using physical layer signaling.
- the content of the signaling bearer includes, but is not limited to, indicating whether the UE needs to To delay the transceiving conversion time, the UE is required to specifically delay the transceiving conversion time.
- the content may be indicated by a redundant bit carried in the physical downlink control channel PDCCH.
- the redundant bit information may be carried by a paging channel (Pag ing ) scheduling information or a bearer system message block type 1 (S IB1 ) scheduling information or a physical layer random access channel (PRACH, Phys i ca l random acces s channe l
- Pag ing paging channel
- S IB1 bearer system message block type 1
- PRACH physical layer random access channel
- a reserved field ie, a redundant bit in the PDCCH, so as to know whether it is necessary to delay the transmission and reception conversion time in the subsequent period of the 0th subframe, and if the delay is required, what is the specific time of the delay;
- the S IB1 information is transmitted once every 20 ms, that is, the subframe 5 in each even radio frame is transmitted, so the UE can also know the reserved field (ie, the redundant bit) of the PDCCH by detecting the SIB 1 scheduling information.
- the transmission/reception conversion time needs to be delayed in the subsequent period of the sub-frame 5, and if the delay is required, the specific time of the delay What; for the PRACH channel has a similar process.
- the base station notifies the user equipment of the UE to delay the transmission and reception of the transition time content to the UE through the RRC broadcast signaling or the RRC dedicated signaling or the physical layer signaling, and the UE may pass other signaling after delaying the transmission and reception conversion time.
- the signaling may be carried in the foregoing signaling, that is, in the content "instructing whether the UE needs to delay the transmission and reception conversion time", or may use the new RRC broadcast signaling or RRC proprietary Signaling or physical layer signaling is indicated.
- the user equipment may receive the first indication information that is sent by the first base station by using the first signaling.
- the first indication information includes the configuration information of the interference coordination mechanism used by the first base station and the configuration information of the first base station
- the first signaling that is, the radio resource control RRC broadcast
- the signaling is the radio resource control RRC broadcast signaling, or the RRC dedicated signaling, or the physical layer signaling indicates the interference used by the first base station by the user equipment. Coordinating the configuration information of the mechanism, and indicating the configuration information of the first base station by using the first signaling different from the foregoing signaling. Further, the specific signaling design manner may be the same as previously described, and details are not described herein.
- the first base station (macro base station Macro) still uses the ratio 0
- the second base station (micro base station Pico) uses the ratio 1
- the first base station and the second base station pass the fake UL subframe scheme and the subframe shift,
- the second base station common channel such as the synchronization channel SCH/physical broadcast channel PBCH, and the physical downlink control channel PDCCH and/or the physical downlink shared channel PDSCH transmitted to the second base station subframe 1 and subframe 6.
- the first base station may further further downlink the sub-frame 1 and the sub-frame 6 (the following pilot time)
- the gap DwPTS or the downlink subframe in this example, because the Macro is using TDD ratio 0, and the downlink portions of subframes 1 and 6 are corresponding to DwPTS) is configured as an approximate blank subframe (ABS: Almost blank subframe) to further reduce Interference to the Paging channel of the interfered cell and the SIB-1 channel.
- An approximate null subframe refers to a transmission in which only a common pilot is transmitted, or only a transmission of a common pilot and a limited control channel (such as a physical downlink control channel).
- the limited control channel on the approximate null subframe may be used for scheduling paging messages and/or system information, and may also be used for scheduling other broadcast information or unicast information.
- limited uplink signals such as UL ACK or UL NACK, may also be transmitted on the fake uplink subframe.
- the UL ACK or UL NACK signal carried by the subframe 2 and the subframe 7 of the fake cell subframe of the Macro cell is exactly the UL ACK or UL NACK of the downlink data carried by the subframe 6DwPTS and the downlink data carried by the subframe 1DwPTS. Therefore, as described above, since the subframes 1 and 6 of the Macro are already configured as the ABS, there is no downlink traffic data requiring UL ACK or UL NACK on the subframe 1 and the subframe 6, so that the configuration can be configured as fake UL subframe. Subframe 2 and subframe 7 do not carry any uplink information, thereby further reducing interference to downlink subframes of the Pico cell.
- the Macro may also The transmission of certain uplink signals is configured in a part of the subframe 2 and the subsequent part of the subframe 7, that is, the overlap with the UpPTS of the Pico cell subframe 1 and the subframe 6, including but not limited to the transmission configuration of the PRACH, the transmission configuration of the SRS, and the like.
- the user equipment determines, according to the required transmission and reception conversion time.
- the second base station refers to a neighboring base station corresponding to the serving base station of the user equipment, and may be a neighboring base station interfered by the first base station, or may be in a sending time with the first base station.
- a base station on which time shift information is present where the time shift information may be an integer number of OFDM (Orthogonal Frequency Division Multiplexing) symbols, or may be an integer number of time slots, or may be an integer number of subframes. It can also be an integer number of radio frames, which is not limited herein.
- the downlink time may be a time when the second base station performs downlink data transmission or a time when the user equipment performs downlink data reception, where the downlink time may be represented by an integer number of OFDM symbols, or an integer number of time slots may be used. It can also be represented by an integer number of subframes, and can also be represented by an integer number of radio frames, which is not limited herein.
- the user equipment performs neighbor cell measurement on the second base station at the downlink time.
- the neighboring cell measurement includes, but is not limited to, a channel quality indicator CQI (Channel Quality Indicator), a precoding matrix array indicating PMI (Precoding Matrix Indicator), a rank indicating RI (Rank Indicator), an RRM (Radio Resource Management) related measurement, and the like.
- CQI Channel Quality Indicator
- PMI Precoding Matrix Indicator
- rank RI Rank Indicator
- RRM Radio Resource Management
- the user equipment determines, according to the first indication information, that Whether there is uplink service at an uplink time.
- the first uplink time may be a time when the serving base station of the user equipment (the first base station in the embodiment of the present invention) performs uplink data reception or a time when the user equipment performs uplink data transmission, where the uplink time is Can be represented by an integer number of 0FDM symbols, or The integer number of timeslots may be used, and may be represented by an integer number of subframes, or may be represented by an integer number of radio frames, which is not limited herein.
- the uplink service may be an uplink data service or an uplink control service.
- the channel quality indicator CQI Channel Quali ty Indicator
- the precoding matrix indicator PMI Precoding Matr ix Indicator
- the rank indication RI The transmission of the Rank Indicator
- the PRACH Physical Random Access Channel
- the PUSCH Physical Uplink Shared Channel
- the transmission and reception conversion time required to be delayed is not zero, and the transmission and reception conversion time required to be delayed is a positive integer or a negative integer OFDM symbol, or a positive integer or a negative integer time slot, or is positive An integer or a negative integer number of subframes is a positive integer or a negative integer number of radio frames, which is not limited herein.
- the transmission and reception conversion time required to be delayed is a positive integer OFDM symbol or a positive integer number of slots or a positive integer number of subframes or a positive integer number of radio frames, it indicates that the user equipment needs to increase at an existing transmission and reception conversion time or The transmission and reception switching time required to be delayed is reduced.
- the transmission and reception conversion time required to be delayed is a negative integer OFDM symbol or a negative integer number of slots or a negative integer number of subframes or a negative integer number of radio frames
- the existing transmission and reception switching time may be a GP between the DwPTS (DownPlot) and the UpPTS (Upl Initiation Pilot Time Slot).
- the device switching time of the user equipment included in the iod guard interval may also be the device device state transition time required for the user equipment to switch from the downlink data receiving state to the uplink data transmitting state, which is not limited herein.
- the user equipment determines, according to the required transmission and reception conversion time, a downlink time that can perform neighbor cell measurement on the second base station, and enters the second base station in the downlink time Line neighbor measurement.
- the neighboring area measurement includes, but is not limited to, a channel quality indicator (CQI), a precoding matrix indicator (PMI), a rank indicator RI (Rank Indicator), an RRM (Radio Resource Management) related measurement, and the like.
- CQI channel quality indicator
- PMI precoding matrix indicator
- RI rank indicator
- RRM Radio Resource Management
- the second base station initiates a request to the first base station, requesting the first base station to use an interference coordination mechanism, such as a fake UL subfram scheme, and a time shifting scheme, where the first base station responds by requesting feedback information.
- an interference coordination mechanism such as a fake UL subfram scheme
- time shifting scheme where the first base station responds by requesting feedback information.
- the first base station determines a dry coordination mechanism, such as a fake UL subfram scheme
- the first base station can notify the user equipment through the air interface to use the fake UL subf rame scheme and the fake UL subf rame Specific configuration. That is, before configuring the interference coordination mechanism, the first base station may interact with the second base station by using the foregoing method to determine whether the first base station uses an interference coordination mechanism, such as a fake UL subfram scheme and a time shifting scheme.
- the uplink service is present on the fake UL subfame through the configuration information of the first base station, including but not limited to the channel quality indicator CQI (Channel Quality Indicator),
- the coding matrix indicates PMI (Precoding Matrix Indicator).
- the feedback indication such as the rank indication RI ( Rank Indicator), UL ACK (uplink acknowledgement response) / UL NACK (uplink denied response) transmission, SRS (probe reference symbol) transmission, PRACH ( Physical random access channel), etc.
- the first base station may further notify the user equipment of the synchronization channel location of the interfered cell, so that the user equipment can obtain the location information of the neighboring cell CRS.
- the user equipment determines whether there is its own uplink service on the fake UL subframe through the above information, and can determine the first time by using the synchronization channel location information of the second base station or the time shift information between the second base station and the first base station.
- the synchronization channel location information of the second base station so that it can be based on its actual line service requirement and/or the synchronization channel location information of the second base station.
- the transmission and reception conversion time is adjusted to determine the measurement time of the second base station, and the neighboring area measurement of the second base station is completed.
- the notification of the above information can be obtained by RRC broadcast signaling or RRC dedicated signaling or physical layer signaling.
- each flexible subframe can be used as an uplink, or as a downlink, or temporarily.
- the last two subframes in each field are flexible subframes, as shown in FIG. 5, where D represents a downlink subframe, S represents a special subframe, U represents an uplink subframe, and F represents a flexible subframe.
- the UE may not perform the transmission and reception conversion, that is, delay the transmission and reception conversion time. The number of times the UE receives and receives conversions is reduced, thereby reducing the complexity of the UE.
- the apparatus includes: a receiving unit 61, a determining unit 62, and a measuring unit 63.
- the receiving unit 61 is configured to receive first indication information sent by the first base station.
- the receiving unit 61 is specifically configured to receive the first indication information that is sent by the first base station by using the first signaling.
- the first base station may be a serving base station of the user equipment, or may be a communication entity that has an interface with the serving base station of the user equipment and has a function of sending information, and the interface connection may be an X2 interface, an S1 interface, and a fiber interface.
- the wireless interface is not limited herein; the communication entity may be a remote radio unit having the interface connected to the serving base station of the user equipment.
- RRU remote radio uni t
- RRU may also be a mobility management entity (MME, Mobi le Management Entity) having the interface connection with the serving base station of the user equipment, or may be the serving base station with the user equipment.
- MME mobility management entity
- the non-serving base station to which the interface is connected is not limited herein.
- the first signaling that is, the radio resource control RRC broadcast signaling may be used.
- RRC-specific signaling or physical layer signaling, indicating whether the user equipment needs to delay sending and receiving conversion time information and specific time information of sending and receiving conversion delay.
- the first signaling that is, the radio resource control RRC broadcast signaling, or the RRC dedicated signaling, or the physical layer signaling, may be used to indicate whether the user equipment needs to delay sending and receiving conversion time information, and The first signaling different from the foregoing signaling indicates specific time information of the user equipment to send and receive a conversion delay.
- the RRC broadcast signaling may be controlled by the first signaling, that is, the radio resource, or the RRC specialization The signaling is sent, or the physical layer signaling directly sends the first indication information to the user equipment.
- the first signaling that is, radio resource control RRC broadcast
- the first signaling may be used.
- the signaling is the radio resource control RRC broadcast signaling, or the RRC dedicated signaling, or the physical layer signaling indicates the configuration information of the interference coordination mechanism used by the first base station by the user equipment, and uses different information from the foregoing
- the first signaling of the command indicates configuration information of the first base station.
- the determining unit 62 is configured to determine, according to the first indication information received by the receiving unit 61, a transmission and reception conversion time that needs to be delayed, and determine, according to the required transmission and reception conversion time, that the neighboring area measurement can be performed on the second base station. Down time.
- the second base station refers to a neighboring base station corresponding to the serving base station of the user equipment, and may be a neighboring base station interfered by the first base station, or may be in a sending time with the first base station. a base station having time shift information thereon, wherein the time shift information may be an integer
- the OFDM (Orthogonal Frequency Division Multiplexing, Orthogona Frequency Dimitted Mul t iplexing) symbol may be an integer number of time slots, or may be an integer number of subframes, or may be an integer number of radio frames, which is not limited herein. .
- the downlink time may be a time when the second base station performs downlink data transmission or a time when the receiving unit 61 performs downlink data reception, where the downlink time may be represented by an integer number of OFDM symbols, or an integer number of times may be used.
- the slot is represented by an integer number of subframes, and may be represented by an integer number of radio frames, which is not limited herein.
- the determining unit 62 is specifically configured to:
- Determining whether there is an uplink service at the first uplink time according to the configuration information of the interference coordination mechanism used by the first base station and the configuration information of the first base station.
- the first uplink time may be a time when the serving base station of the user equipment (the first base station in the embodiment of the present invention) performs uplink data reception or a time when the user equipment performs uplink data transmission, where the uplink time is It may be represented by an integer number of OFDM symbols, or may be represented by an integer number of time slots, or may be represented by an integer number of subframes, or may be represented by an integer number of radio frames, which is not limited herein.
- the uplink service may be an uplink data service or an uplink control service. Specifically, it may be a channel quality indicator CQI (Channel Quali ty Indicator), and a precoding matrix indicator PMI (Precoding Matr ix Indicator). Rank Indicator), etc. Feedback reporting, UL ACK (uplink acknowledgment) / UL NACK (uplink acknowledgment) transmission, SRS (probe reference symbol) transmission, PRACH (physical random access channel) transmission, PUSCH (physical uplink shared channel) )Wait.
- CQI Channel Quality indicator
- PMI Precoding Matr ix Indicator
- Rank Indicator etc.
- Feedback reporting UL ACK (uplink acknowledgment) / UL NACK (uplink acknowledgment) transmission, SRS (probe reference symbol) transmission, PRACH (physical random access channel) transmission, PUSCH (physical uplink shared channel) )Wait.
- the transceiving conversion time that needs to be delayed is not the middle, and the transceiving conversion time that needs to be delayed is not zero, and the transceiving conversion time that needs to be delayed may be a positive integer or a negative An integer number of OFDM symbols, or a positive integer or a negative integer number of slots, or a positive integer or a negative integer number of subframes, being a positive integer or a negative integer number of radio frames, There is no limit here.
- the transmission and reception conversion time required to be delayed is a positive integer OFDM symbol or a positive integer number of slots or a positive integer number of subframes or a positive integer number of radio frames, it indicates that the user equipment needs to increase at an existing transmission and reception conversion time or The transmission and reception switching time required to be delayed is reduced.
- the transmission and reception conversion time required to be delayed is a negative integer OFDM symbol or a negative integer number of slots or a negative integer number of subframes or a negative integer number of radio frames, it indicates that the user equipment needs to be reduced at an existing transmission and reception switching time. Or increase the transceiving conversion time that requires delay.
- the existing transmission and reception switching time may be a GP between the DwPTS (DownPlot) and the UpPTS (Upl Initiation Pilot Time Slot).
- the device switching time of the user equipment included in the iod guard interval may also be the device device state transition time required for the user equipment to switch from the downlink data receiving state to the uplink data transmitting state, which is not limited herein.
- the base station When the uplink service exists, it is determined that the transceiving conversion time that needs to be delayed is zero.
- the base station performs neighbor cell measurement.
- the neighboring cell measurement includes, but is not limited to, a channel quality indicator CQI (Channel Quali ty Indicator), a precoding head matrix indicator PMI (Precoding Matr ix Indicator), a rank indicator RI ( Rank Indicator), and RRM (Radio Resource Management). ) related measurements, etc.
- CQI Channel Quality indicator
- PMI Precoding Matr ix Indicator
- rank indicator RI Rank Indicator
- RRM Radio Resource Management
- the device provided by the embodiment of the present invention is also applicable to the scenario of the time-division duplex TDD flexible subframe matching, which is similar to the method in the method of FIG. 5, and details are not described herein again.
- This embodiment provides a processing method for sending and receiving a conversion time of a user equipment. As shown in FIG. 7, the method includes:
- the first base station confirms the first indication information that needs to be sent to the user equipment.
- the first base station may determine whether to send the first indication information to the user equipment according to the time offset information between the first base station and the second base station, and the first base station may further reduce the second base station according to whether the interference mechanism is used.
- the interference is used to determine whether to send the first indication information to the user equipment, and may also determine whether to send the first indication information to the user equipment according to other manners. Set.
- the interference mechanism may be that the first base station uses a fake uplink sub-frame (fake UL subframe) configuration, or may use a low-power transmission subframe configuration or an approximate null transmission subframe configuration, or may be
- the fake UL subf rame configuration uses a time shifting technique in combination, and may be a low-power transmission subframe configuration or an approximate null transmission subframe configuration combined with a time shifting technique, which is not limited herein.
- the first base station sends first indication information to the user equipment by using first signaling. Further, the user equipment is configured to determine, according to the first indication information, a transmission and reception conversion time that needs to be delayed, and further determine, according to the required transmission and reception conversion time, a downlink time that can perform neighboring area measurement on the second base station, and The downlink time is used to perform neighbor cell measurement on the second base station.
- the first signaling that is, the radio resource control RRC broadcast signaling
- the RRC-specific signaling, or the physical layer signaling simultaneously indicating whether the user equipment needs to delay the sending and receiving conversion time information and the specific time information of the sending and receiving conversion delay.
- the first signaling that is, the radio resource control RRC broadcast signaling, or the RRC dedicated signaling, or the physical layer signaling, may be used to indicate whether the user equipment needs to delay sending and receiving conversion time information, and The first signaling different from the foregoing signaling indicates specific time information of the user equipment to send and receive a conversion delay.
- the RRC broadcast signaling may be controlled by the first signaling, that is, the radio resource, or the RRC specialization The signaling is sent, or the physical layer signaling directly sends the first indication information to the user equipment.
- the first base station may notify the user of the cell service to delay the transmission and reception of the conversion time by using the RRC broadcast signaling, and the content of the signaling bearer includes, but is not limited to, indicating whether the user equipment UE needs to delay the transmission and reception conversion time, and indicates that the UE specifically needs to delay. Transceiver conversion time.
- the signaling may be carried in the existing RRC broadcast signaling, for example, may be carried in the physical broadcast channel PBCH (Phys i ca l broadcas t channe l ), and the redundant bit (bi t ) information is used to indicate the local cell. Whether the serving UE needs to delay the transmission and reception conversion time.
- the lbi t information may be used to directly indicate whether the UE needs to delay the transmission and reception conversion time.
- the delay time required by the UE may be the default between the first base station and the UE, for example.
- the time delay of one subframe may be delayed based on the existing transmission and reception delay conversion time of the UE; or the redundant bi t information may be used to directly indicate the transmission and reception conversion delay time required by the UE, for example, if the number of PBCH redundancy is X, then 2 X states can be expressed, and the transmission and reception delay time can be measured in units of orthogonal frequency division multiplexing (OFDM) symbols/subframes/frames.
- OFDM orthogonal frequency division multiplexing
- the specific signaling can be represented by one of the 2 X states as l sf (1 subframe) or 0. l rf (0.11 radio frame) or 14symbol (14 symbols) or l Os lot (10 time slots), other representations may also be used, which are not limited herein.
- the signaling can also be carried in the system information type block SIB (Sys tem informa t ion block), specifically, it can be S IB-1/SIB-2/SIB-3, etc., and the information content carried can be
- SIB system information type block
- the field may be directly extended in the SIB information, where the extension field is used to indicate that the UE delays the transmission and reception conversion time, and the delayed transmission and reception conversion time can ensure that the UE can correctly interpret the SCH (synchronization channel) bearer information of the neighboring cell.
- the position of the CRS Cell Specific Reference Signal
- the first base station may also notify the user served by the cell to delay the transmission and reception conversion time by using the RRC dedicated signaling.
- the content of the RRC dedicated signaling bearer includes, but is not limited to, indicating whether the UE needs to delay the conversion time, indicating that the UE needs to The specific time of delayed transmission and reception conversion, the RRC proprietary signaling can be valid for a group of users with the same characteristics. For example, the user who needs to perform the measurement of the neighboring area, that is, when the user who needs to perform the measurement of the neighboring area reads the RRC dedicated signaling, the transmission and reception conversion time of the signaling notification may be delayed according to the signaling content, so as to ensure that The neighboring area measurement is performed normally.
- the first base station may further notify the user served by the cell to delay the transmission and reception conversion time by using physical layer signaling.
- the content of the signaling bearer includes, but is not limited to, indicating whether the UE needs to delay the transmission and reception conversion time, and indicates the UE specific The delayed transmission and reception conversion time is required.
- the content may be indicated by the redundancy bi t carried in the physical downlink control channel PDCCH.
- the redundant bit information may be carried by a paging channel (Pag ing ) scheduling information or a bearer system message block type 1 (S IB1 ) scheduling information or PDCCH acquisition of physical layer random access channel (PRACH, Phys i ca l random acces s channe l ) scheduling information, further, since for TDD (Time Division Duplex) system, paging
- Pag ing paging channel
- S IB1 bearer system message block type 1
- PRACH Physical layer random access channel
- Phys i ca l random acces s channe l Physical layer random access channel
- the UE can also know whether the delay is required in the subsequent period of the subframe 5 in the subsequent period of the subframe 5 by detecting the reserved field (ie, the redundant bit) of the PDCCH of the SIB 1 scheduling information. Transceiver conversion time, and the specific time of delay if delay is required; there is a similar process for the PRACH channel.
- the base station notifies the user equipment of the UE to delay the transmission and reception of the transition time content to the UE through the RRC broadcast signaling or the RRC dedicated signaling or the physical layer signaling, and the UE may pass other signaling after delaying the transmission and reception conversion time.
- the signaling may be carried in the foregoing signaling, that is, in the content "instructing whether the UE needs to delay the transmission and reception conversion time", or may use the new RRC broadcast signaling or RRC proprietary Signaling or physical layer signaling is indicated.
- the user equipment receives the first indication information that is sent by the first base station by using the first signaling.
- the first indication information includes the configuration information of the interference coordination mechanism used by the first base station and the configuration information of the first base station
- the first signaling that is, the radio resource control RRC broadcast may be used.
- the signaling is the radio resource control RRC broadcast signaling, or the RRC dedicated signaling, or the physical layer signaling indicates the configuration information of the interference coordination mechanism used by the first base station by the user equipment, and uses different information from the foregoing
- the first signaling of the command indicates configuration information of the first base station.
- the specific signaling indication manner may be the same as that described above, and details are not described herein.
- the first base station (macro base station Macro) still uses the ratio 0
- the second base station (micro base station Pico) uses the ratio 1
- the first base station and the second base station adopt the fake UL subframe scheme and the subframe shift,
- the second base station common channel such as the synchronization channel SCH/physical broadcast channel PBCH, and the physical downlink control channel PDCCH and/or the physical downlink shared channel PDSCH transmitted to the second base station subframe 1 and subframe 6.
- the first base station may further further downlink the sub-frame 1 and the sub-frame 6 (as follows) Frequency slot DwPTS or downlink subframe.
- the downlink portion of subframes 1 and 6 corresponds to DwPTS.
- the configuration is approximate to empty subframe (ABS: Almos t blank subframe).
- An approximate null subframe refers to a transmission in which only a common pilot is transmitted, or only a transmission of a common pilot and a limited control channel (such as a physical downlink control channel PDCCH: PHY).
- the limited control channel on the approximate null subframe may be used for scheduling paging messages and/or system information, and may also be used for scheduling other broadcast information or unicast information.
- limited uplink signals such as UL ACK or UL NACK, may also be transmitted on the fake uplink subframe.
- the UL ACK or UL NACK signal carried by the subframe 2 and the subframe 77 of the fake cell subframe corresponding to the Macro cell is exactly the UL ACK or UL NACK of the downlink data carried by the subframe 6DwPTS and the downlink data carried by the subframe 1DwPTS. Therefore, as described above, since the subframes 1 and 6 of the Macro are already configured as the ABS, there is no downlink traffic data requiring UL ACK or UL NACK on the subframe 1 and the subframe 6, so that the configuration can be configured as fake UL subframe. Subframe 2 and subframe 7 do not carry any uplink information, thereby further reducing interference to downlink subframes of the Pico cell.
- the macro may also be in the subframe 2 and the latter part of the subframe 7 and the Pico
- the UpPTS overlap of the cell subframe 1 and the subframe 6 configures transmission of certain uplink signals, including but not limited to the transmission configuration of the PRACH, the transmission configuration of the SRS, and the like. view.
- the time division duplex TDD flexible subframe matching scenario 3GPP LTE Re l-11 (3rd Generation Partnership Project Medium and Long Term Evolution Version 11) introduces TDD flexible subframe application technology, that is, configures some in the TDD system. Flexible sub-frames.
- Each flexible sub-frame can be used in the uplink or in the downlink. It can also be used temporarily.
- the last two subframes in each field are flexible subframes, as shown in FIG. 5, where D represents a downlink subframe, S represents a special subframe, U represents an uplink subframe, and F represents a flexible subframe.
- D represents a downlink subframe
- S represents a special subframe
- U represents an uplink subframe
- F represents a flexible subframe.
- the method of signaling or the UE itself is obtained, so that the UE can know that the U subframe after the S subframe does not have corresponding uplink data, and the UE may not perform transmission and reception conversion, that is, delay the transmission and reception conversion time, thereby reducing the UE receiving and transmitting conversion.
- the number of times which in turn reduces the complexity of the UE.
- the embodiment provides a processing device for sending and receiving a conversion time of a user equipment.
- the device includes: a confirming unit 81 and a sending unit 82.
- the confirmation unit 81 is configured to confirm the first indication information that needs to be sent to the user equipment.
- the determining unit 81 may determine, according to the time offset information between the first base station and the first base station, whether to send the first indication information to the user equipment, and the confirming unit 81 may further reduce the second base station according to whether the interference mechanism is used.
- the interference is used to determine whether to send the first indication information to the user equipment, and the first indication information may be sent to the user equipment according to other manners, which is not limited herein.
- the interference mechanism may be that the first base station uses a fake uplink sub-frame (fake UL subframe) configuration, or may use a low-power transmission subframe configuration or an approximate null transmission subframe configuration, or may be
- the fake UL subf rame configuration uses a time shifting technique in combination, and may be a low-power transmission subframe configuration or an approximate null transmission subframe configuration combined with a time shifting technique, which is not limited herein.
- the sending unit 82 is configured to send, to the user equipment, the first indication information that is confirmed by the confirming unit 81, so that the user equipment determines, according to the first indication information, a transmission and reception conversion time that needs to be delayed, and further according to The delayed transmission and reception conversion time determines a downlink time at which a neighboring cell measurement can be performed on the second base station, and performs a neighboring cell measurement on the second base station at the downlink time.
- the sending unit 82 is specifically applicable to
- the first signaling that is, the radio resource control RRC broadcast signaling
- the RRC-specific signaling, or the physical layer signaling simultaneously indicating whether the user equipment needs to delay the sending and receiving conversion time information and the specific time information of the sending and receiving conversion delay.
- the first signaling that is, the radio resource control RRC broadcast signaling, or the RRC dedicated signaling, or the physical layer signaling, may be used to indicate whether the user equipment needs to delay sending and receiving conversion time information, and The first signaling different from the foregoing signaling indicates specific time information of the user equipment to send and receive a conversion delay.
- the RRC broadcast signaling may be controlled by the first signaling, that is, the radio resource, or the RRC specialization The signaling is sent, or the physical layer signaling directly sends the first indication information to the user equipment.
- the first signaling that is, radio resource control RRC broadcast
- the first signaling may be used.
- the signaling is the radio resource control RRC broadcast signaling, or the RRC dedicated signaling, or the physical layer signaling indicates the configuration information of the interference coordination mechanism used by the first base station by the user equipment, and uses different information from the foregoing
- the first signaling of the command indicates configuration information of the first base station.
- the device provided by the embodiment of the present invention is also applicable to the time division duplex TDD flexible subframe matching scenario, which is similar to the method in the method of FIG. 7, and details are not described herein again.
- the method and device for processing a sending and receiving time of a user equipment provided by the embodiment of the present invention, first, the first base station sends the first indication information to the user equipment, and then the user equipment determines, according to the first indication information, the sending and receiving conversion time that needs to be delayed.
- the last user equipment according to the needs The downlink transmission and reception time to be delayed determines a downlink time at which the neighboring cell can be measured by the second base station, and the user equipment performs the neighboring cell measurement on the second base station at the downlink time.
- the problem of the co-channel interference between the base stations is eliminated, and the normal neighboring area measurement can still be performed on the second base station by delaying the transmission and reception time of the user equipment, thereby ensuring the channel quality and performing the same. Neighbor measurement.
- the device for processing the transmission and reception time of the user equipment provided by the embodiment of the present invention may implement the foregoing method embodiment.
- the processing method and apparatus for receiving and receiving a conversion time of a user equipment provided by the embodiments of the present invention may be applicable to the field of a wireless communication system, but are not limited thereto.
- the storage medium may be a magnetic disk, an optical disk, or a read-only storage memory.
- ROM Read-Only ly Memory
- RAM Random Acces s Memory
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Abstract
本发明实施例公开了一种用户设备收发转化时间的处理方法及装置,涉及无线通信系统领域,本发明在消除基站之间共信道干扰问题的同时,通过延迟用户设备收发转化时间,依然可以对第二基站进行正常的邻区测量。所述方法包括:首先用户设备接收第一基站发送的第一指示信息;然后所述用户设备根据所述第一指示信息,确定需要延迟的收发转化时间;最后所述用户设备根据所述需要延迟的收发转化时间确定能够对第二基站进行邻区测量的下行时刻,并且所述用户设备在所述下行时刻对所述第二基站进行邻区测量。本发明适用于无线通信系统领域。
Description
用户设备收发转化时间的处理方法及装置 本申请要求于 2011 年 12 月 2 日提交中国专利局、 申请号为 201110396227. 9 , 发明名称为 "用户设备收发转化时间的处理方法及装置" 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系统领域, 特别涉及一种用户设备收发转化时间 的处理方法及装置。 背景技术
在无线通信系统中, 为了提高系统的频谱利用效率, 低功率基站和宏 基站进行完全或部分的频谱复用, 从而低功率基站和宏基站彼此之间会产 生同道 (或同频)干扰。
为了保护被干扰基站第二基站, 例如可以是, 宏基站、 微基站、 中继 基站、 家庭基站等) 的下行信道的传输, 特别是第二基站的下行控制信道 的传输, 在时分双工(Time Divi s ion Duplex, TDD )系统中, 干扰基站(第 一基站, 例如可以是, 宏基站、 微基站、 中继基站、 家庭基站等)和被干 扰基站(第二基站)可以配置不同的 TDD配比, 使得第一基站的上行子帧 多于第二基站的上行子帧, 同时第一基站可以将对应于第二基站下行子帧 的某些上行子帧配置为^ J行子帧 (Fake Upl ink Subf rame ), 以降低对第 二基站下行信道传输的干扰。 所谓假上行子帧, 是指这个子帧尽管是一个 上行子帧, 但是可以通过调度或者配置的方法, 使得在这个上行子帧上承 载尽可能少的业务数据业务和控制数据业务, 从而降低对第二基站下行信 道传输的干扰。 同时, 时间移位技术也可以消除小区之间共信道干扰问题。
但是对于第一基站所服务的 UE , 在进行第二基站邻区测量的时候, 由 于在第一基站 TDD配比下 UE已经处于上行发送状态, 而导致无法对第二基站 发送的下行 SCH (Synchroniza t ion Channe l,同步信道)承载的信号进行接收 检测, 进而无法获取 CRS (Ce l l- spec if i c reference s igna l s ,小区特定参
考信号)的位置, 从而影响 UE进行正常的邻区测量。 发明内容
本发明的实施例提供一种用户设备收发转化时间的处理方法及装置 , 解决了在消除基站之间共信道干扰时, UE无法进行正常邻区测量的问题。
本发明实施例釆用的技术方案为:
一种用户设备收发转化时间的处理方法, 包括:
用户设备接收第一基站发送的第一指示信息;
所述用户设备根据所述第一指示信息, 确定需要延迟的收发转化时间; 所述用户设备根据所述需要延迟的收发转化时间确定能够对第二基站 进行邻区测量的下行时刻;
所述用户设备在所述下行时刻对所述第二基站进行邻区测量。
一种用户设备, 包括:
接收单元, 用于接收第一基站发送的第一指示信息;
确定单元, 用于根据所述接收单元接收到的所述第一指示信息, 确定 需要延迟的收发转化时间; 并根据所述需要延迟的收发转化时间确定能够 对第二基站进行邻区测量的下行时刻;
进行邻区测量。
一种用户设备收发转化时间的处理方法, 包括:
第一基站确认需要向用户设备发送的第一指示信息;
所述第一基站向所述用户设备发送所述第一指示信息; 以使得所述用 户设备根据所述第一指示信息, 确定需要延迟的收发转化时间, 进而根据 所述需要延迟的收发转化时间确定能够对第二基站进行邻区测量的下行时 刻并在所述下
行时刻对所述第二基站进行邻区测量。
一种基站, 包括:
确认单元, 用于确认需要向用户设备发送的第一指示信息;
发送单元, 用于向所述用户设备发送所述确认单元确认的所述第一指 示信息; 以使得所述用户设备根据所述第一指示信息, 确定需要延迟的收 发转化时间, 进而根据所述需要延迟的收发转化时间确定能够对第二基站 进行邻区测量的下行时刻并在所述下行时刻对所述第二基站进行邻区测 量。
本发明实施例提供的用户设备收发转化时间的处理方法及装置, 首先 第一基站向用户设备发送第一指示信息, 然后所述用户设备根据所述第一 指示信息, 确定需要延迟的收发转化时间, 最后所述用户设备根据所述需 要延迟的收发转化时间确定能够对第二基站进行邻区测量的下行时刻, 所 述用户设备在所述下行时刻对所述第二基站进行邻区测量。 现有技术虽然 可以消除基站之间共信道干扰问题, 但是会导致第一基站服务的用户设备 无法对第二基站进行邻区测量。 而本发明实施例在消除基站之间共信道干 扰问题的同时, 通过延迟用户设备收发转化时间, 依然使得第一基站服务 的用户设备可以对第二基站进行正常的邻区测量, 这样在保证了信道质量 的同时, 又进行了邻区测量。 附图说明
为了更清楚地说明本发明实施例中的技术方案, 下面将对实施例或现 有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中 的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不 付出创造性劳动的前提下, 还可以根据这些附图获得其它的附图。
图 1为本发明实施例一提供的用户设备收发转化时间的处理方法流程 图;
图 2为本发明实施例一提供的用户设备结构示意图;
图 3为本发明实施例一提供的用户设备收发转化时间的处理方法流程
图;
图 4为本发明实施例一提供的基站结构示意图;
图 5为本发明实施例二提供的用户设备收发转化时间的处理方法流程 图;
图 6为本发明实施例二提供的用户设备结构示意图;
图 7本发明实施例二提供的用户设备收发转化时间的处理方法流程图; 图 8为本发明实施例二提供的基站结构示意图;
图 9为一个无线帧内灵活子帧应用的示意图。 具体实施方式
下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进 行清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没 有做出创造性劳动前提下所获得的所有其它实施例, 都属于本发明保护的 范围。
为使本发明技术方案的优点更加清楚, 下面结合附图和实施例对本发 明作详细说明。
实施例一
本实施例提供一种用户设备收发转化时间的处理方法, 如图 1所示, 所 述方法包括:
101、 用户设备接收第一基站发送的第一指示信息。
其中, 所述第一基站可以是用户设备的服务基站, 也可以是和用户设 备的服务基站具有接口连接且具有发送信息功能的通信实体, 所述接口连 接可以是 X2接口, S1接口, 光纤接口, 无线接口, 在此不做限定; 所述通 信实体可以是和用户设备的服务基站具有所述接口连接的远程射频单元
( RRU, remote radio uni t ), 也可以是和用户设备的服务基站具有所述接 口连接的移动管理实体 ( MME, Mobi le Management Ent i ty ), 还可以是和
用户设备的服务基站具有所述接口连接的非服务基站, 在此不做限定。 具体地, 所述用户设备可以接收所述第一基站通过第一信令发送的第 一指示信息。 其中, 当所述第一指示信息包括所述用户设备是否需要延迟 收发转化时间的信息和收发转换延迟的具体时间信息时, 可以釆用所述第 一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令 指示所述用户设备是否需要延迟收发转化时间的信息和收发转换延迟的具 体时间信息。或者,也可以釆用所述第一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令指示所述用户设备是否需要延迟收发转 化时间的信息, 并釆用不同于上述信令的所述第一信令指示所述用户设备 收发转换延迟的具体时间信息。 当所述第一指示信息包括所述用户设备是 否需要延迟收发转化时间的信息或收发转换延迟的具体时间信息时, 可以 通过所述第一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者 物理层信令直接向所述用户设备发送所述第一指示信息。
此外, 具体地, 所述用户设备可以接收所述第一基站通过第一信令发 送的第一指示信息。 其中, 当所述第一指示信息包括所述第一基站釆用的 干扰协调机制的配置信息和所述第一基站的配置信息时, 可以釆用所述第 一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令 指示所述第一基站釆用的干扰协调机制的配置信息和所述第一基站的配置 信息; 或者, 也可以釆用所述第一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令指示所述用户设备所述第一基站釆用的干扰 协调机制的配置信息, 并釆用不同于上述信令的所述第一信令指示所述第 一基站的配置信息。
102、 所述用户设备根据所述第一指示信息, 确定需要延迟的收发转化 时间。
103、 所述用户设备根据所述需要延迟的收发转化时间确定能够对第二 基站进行邻区测量的下行时刻。
其中, 所述第二基站是指与用户设备的服务基站相对应的邻区基站,
可以是被所述第一基站干扰的邻区基站, 也可以是和所述第一基站之间在 发送时间上存在时间移位信息的基站, 其中所述时间移位信息可以是整数 个 OFDM (正交频分复用, Orthogonal Frequency Division Multiplexing) 符号, 也可以是整数个时隙, 也可以是整数个子帧, 也可以是整数个无线 帧, 在此不做限定。
所述下行时刻可以是所述第二基站进行下行数据发送的时刻或者是所 述用户设备进行下行数据接收的时刻, 所述下行时刻可以用整数个 OFDM符 号来表示, 也可以用整数个时隙来表示, 也可以用整数个子帧来表示, 也 可以用整数个无线帧来表示, 在此不做限定。
104、 所述用户设备在所述下行时刻对所述第二基站进行邻区测量。 所述邻区测量包括但不限于信道质量指示 CQI ( Channel Quality Indicator ), 预编码头巨阵指示 PMI ( Precoding Matrix Indicator ), 秩指 示 RI (Rank Indicator ), RRM (无线资源管理)相关测量等。
本实施例提供一种用户设备,如图 2所示, 所述装置包括:接收单元 21、 确定单元 22和测量单元 23。
接收单元 21, 用于接收第一基站发送的第一指示信息。 其中, 所述第一基站可以是用户设备的服务基站, 也可以是和用户设 备的服务基站具有接口连接且具有发送信息功能的通信实体, 所述接口连 接可以是 X2接口, S1接口, 光纤接口, 无线接口, 在此不做限定; 所述通 信实体可以是和用户设备的服务基站具有所述接口连接的远程射频单元
(RRU, remote radio unit ), 也可以是和用户设备的服务基站具有所述接 口连接的移动管理实体 (MME, Mobile Management Entity ), 还可以是和 用户设备的服务基站具有所述接口连接的非服务基站, 在此不做限定。
具体地, 所述用户设备可以接收所述第一基站通过第一信令发送的第 一指示信息。 其中, 当所述第一指示信息包括所述用户设备是否需要延迟 收发转化时间的信息和收发转换延迟的具体时间信息时, 可以釆用所述第
一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令 指示所述用户设备是否需要延迟收发转化时间的信息和收发转换延迟的具 体时间信息。或者,也可以釆用所述第一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令指示所述用户设备是否需要延迟收发转 化时间的信息, 并釆用不同于上述信令的所述第一信令指示所述用户设备 收发转换延迟的具体时间信息。 当所述第一指示信息包括所述用户设备是 否需要延迟收发转化时间的信息或收发转换延迟的具体时间信息时, 可以 通过所述第一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者 物理层信令直接向所述用户设备发送所述第一指示信息。
此外, 具体地, 所述用户设备可以接收所述第一基站通过第一信令发 送的第一指示信息。 其中, 当所述第一指示信息包括所述第一基站釆用的 干扰协调机制的配置信息和所述第一基站的配置信息时, 可以釆用所述第 一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令 指示所述第一基站釆用的干扰协调机制的配置信息和所述第一基站的配置 信息; 或者, 也可以釆用所述第一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令指示所述用户设备所述第一基站釆用的干扰 协调机制的配置信息, 并釆用不同于上述信令的所述第一信令指示所述第 一基站的配置信息。
确定单元 22 , 用于根据所述接收单元 21接收到的所述第一指示信息, 确定需要延迟的收发转化时间。 并且根据所述需要延迟的收发转化时间确 定能够对第二基站进行邻区测量的下行时刻。
其中, 所述第二基站是指与用户设备的服务基站相对应的邻区基站, 可以是被所述第一基站干扰的邻区基站, 也可以是和所述第一基站之间在 发送时间上存在时间移位信息的基站, 其中所述时间移位信息可以是整数 个 OFDM (正交频分复用, Or thogona l Frequency Divi s ion Mul t iplexing ) 符号, 也可以是整数个时隙, 也可以是整数个子帧, 也可以是整数个无线
帧, 在此不做限定。
所述下行时刻可以是所述第二基站进行下行数据发送的时刻或者是所 述接收单元 21进行下行数据接收的时刻, 所述下行时刻可以用整数个 OFDM 符号来表示, 也可以用整数个时隙来表示, 也可以用整数个子帧来表示, 也可以用整数个无线帧来表示, 在此不做限定。 基站进行邻区测量。
所述邻区测量包括但不限于信道质量指示 CQI ( Channe l Qua l i ty Indica tor ), 预编码头巨阵指示 PMI ( Precoding Ma tr ix Indi ca tor ), 秩指 示 RI ( Rank Indi ca tor ), RRM (无线资源管理)相关测量等。
本实施例提供一种用户设备收发转化时间的处理方法, 如图 3所示, 所 述方法包括:
301、 第一基站确认需要向用户设备发送的第一指示信息。
其中第一基站可以根据第一基站和第二基站之间的时间偏移信息确定 是否向用户设备发送第一指示信息, 第一基站还可以根据是否釆用了干扰 机制来减少对第二基站的干扰来确定是否向用户设备发送第一指示信息, 也可以根据其他方式确定是否向用户设备发送第一指示信息, 在此不做限 定。 其中, 所述干扰机制可以是第一基站釆用了假上行子帧 (fake UL subf rame ) 配置, 也可以是釆用了低功率发送子帧配置或者是近似空发送 子帧配置, 也可以是 fake UL subf rame配置联合使用时间移位技术, 也可 以是低功率发送子帧配置或者是近似空发送子帧配置联合使用时间移位技 术, 在此不做限定。
302、 所述第一基站向所述用户设备发送所述第一指示信息; 以使得所 述用户设备根据所述第一指示信息, 确定需要延迟的收发转化时间, 进而 根据所述需要延迟的收发转化时间确定能够对第二基站进行邻区测量的下 行时刻并在所述下行时刻对所述第二基站进行邻区测量。
具体地, 所述第一基站可以通过第一信令向所述用户设备发送第一指 示信息。其中,所述第一信令可以包括:无线资源控制 RRC广播信令,或者 RRC 专有信令,或者物理层信令。 所述第一指示信息包括: 所述用户设备是否需 要延迟收发转化时间的信息, 和 /或收发转换延迟的具体时间信息, 或者所 述第一指示信息包括: 所述第一基站釆用的干扰协调机制的配置信息和所 述第一基站的配置信息, 以使得所述用户设备根据所述第一基站釆用的干 扰协调机制的配置信息和所述第一基站的配置信息, 确定在第一上行时刻 是否存在上行业务。 进一步地, 所述干扰第一基站釆用的干扰协调机制的 配置信息可以是第一基站釆用的假上行子帧 (fake UL subf rame ) 配置信 息, 也可以是第一基站釆用的低功率发送子帧或者是近似空发送子帧的配 置信息, 也可以是第一基站釆用的 fake UL subf rame联合时间移位技术的 配置信息, 也可以是第一基站釆用的低功率发送子帧配置或者近似空发送 子帧联合时间移位技术的配置信息, 在此不做限定。 所述第一基站的配置 信息可以是^ J行子帧 (fake UL subf rame ) 的具体位置, 也可以是低功 率发送子帧或者是近似空发送子帧的具体位置, 也可以是第一基站和第二 基站之间的相对时间移位信息, 也可以是以上所述信息的任意组合, 在此 不做限定。
其中, 所述第一指示信息以及第一信令的指示方法与图 1所述的内容相 同, 在此不再赘述。
一种基站, 如图 4所示, 所述装置包括: 确认单元 41、 发送单元 42。 确认单元 41 , 用于确认需要向用户设备发送的第一指示信息。
其中确认单元 41可以根据第一基站和第二基站之间的时间偏移信息确 定是否向用户设备发送第一指示信息, 确认单元 41还可以根据是否釆用了 干扰机制来减少对第二基站的干扰来确定是否向用户设备发送第一指示信 息, 也可以根据其他方式确定是否向用户设备发送第一指示信息, 在此不 做限定。 其中, 所述干扰机制可以是第一基站釆用了假上行子帧 (fake UL
subf rame ) 配置, 也可以是釆用了低功率发送子帧配置或者是近似空发送 子帧配置, 也可以是 fake UL subf rame配置联合使用时间移位技术, 也可 以是低功率发送子帧配置或者是近似空发送子帧配置联合使用时间移位技 术, 在此不做限定。
发送单元 42 , 用于向所述用户设备发送所述确认单元 41确认的所述第 一指示信息; 以使得所述用户设备根据所述第一指示信息, 确定需要延迟 的收发转化时间, 进而根据所述需要延迟的收发转化时间确定能够对第二 基站进行邻区测量的下行时刻并在所述下行时刻对所述第二基站进行邻区 测量。
具体地, 所述第一基站可以通过第一信令向所述用户设备发送第一指 示信息。 其中, 所述第一信令包括:无线资源控制 RRC广播信令,或者 RRC专 有信令,或者物理层信令。 所述第一指示信息包括: 所述用户设备是否需要 延迟收发转化时间的信息, 和 /或收发转换延迟的具体时间信息, 或者所述 第一指示信息包括: 所述第一基站釆用的干扰协调机制的配置信息和所述 第一基站的配置信息, 以使得所述用户设备根据所述第一基站釆用的干扰 协调机制的配置信息和所述第一基站的配置信息, 确定在第一上行时刻是 否存在上行业务。
其中, 所述第一指示信息以及第一信令的指示方法与图 1所述的内容相 同, 在此不再赘述。
本发明实施例提供的用户设备收发转化时间的处理方法及装置, 首先 第一基站向用户设备发送第一指示信息, 然后所述用户设备根据所述第一 指示信息, 确定需要延迟的收发转化时间, 最后所述用户设备根据所述需 要延迟的收发转化时间确定能够对第二基站进行邻区测量的下行时刻, 所 述用户设备在所述下行时刻对所述第二基站进行邻区测量。 现有技术虽然 可以消除基站之间共信道干扰问题, 但是会导致第一基站服务的用户设备 无法对第二基站进行邻区测量。 而本发明实施例在消除基站之间共信道干
扰问题的同时, 通过延迟用户设备收发转化时间, 依然可以对第二基站进 行正常的邻区测量, 这样在保证了信道质量的同时, 又进行了邻区测量。
实施例二
本实施例提供一种用户设备收发转化时间的处理方法, 如图 5所示, 所 述方法包括:
501、 用户设备接收第一基站发送的第一指示信息。 其中, 所述第一基站可以是用户设备的服务基站, 也可以是和用户设 备的服务基站具有接口连接且具有发送信息功能的通信实体, 所述接口连 接可以是 X2接口, S1接口, 光纤接口, 无线接口, 在此不做限定; 所述通 信实体可以是和用户设备的服务基站具有所述接口连接的远程射频单元
( RRU, remote radio uni t ), 也可以是和用户设备的服务基站具有所述接 口连接的移动管理实体 ( MME, Mobi le Management Ent i ty ), 还可以是和 用户设备的服务基站具有所述接口连接的非服务基站, 在此不做限定。
具体地, 所述用户设备可以接收所述第一基站通过第一信令发送的第 一指示信息。 其中, 当所述第一指示信息包括所述用户设备是否需要延迟 收发转化时间的信息和收发转换延迟的具体时间信息时, 可以釆用所述第 一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令 指示所述用户设备是否需要延迟收发转化时间的信息和收发转换延迟的具 体时间信息。或者,也可以釆用所述第一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令指示所述用户设备是否需要延迟收发转 化时间的信息, 并釆用不同于上述信令的所述第一信令指示所述用户设备 收发转换延迟的具体时间信息。 当所述第一指示信息包括所述用户设备是 否需要延迟收发转化时间的信息或收发转换延迟的具体时间信息时, 可以 通过所述第一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者 物理层信令直接向所述用户设备发送所述第一指示信息。
例如, 第一基站可以通过 RRC广播信令通知本小区服务的用户延迟收发 转化时间, 该信令承载的内容包括但不限于指示用户设备 UE是否需要延迟
收发转换时间, 指示 UE具体所需要延迟的收发转换时间。 该信令可以承载 在已有的 RRC广播信令中, 例如可以承载在物理广播信道 PBCH (Physical broadcast channel ) 中, 利用其中的冗余比特(bit )信息来指示本小区 服务的 UE是否需要延迟收发转换时间, 进一步的, 可以利用 lbit信息来直 接指示 UE是否需要延迟收发转换时间, 此时 UE所需的延迟时间可以是第一 基站和 UE之间默认的, 例如可以在 UE现有的收发延迟转换时间基础上延迟 1 个子帧的时间; 或者也可以利用冗余 bit信息来直接指示 UE所需的收发转换 延迟时间, 例如若 PBCH冗余 bit个数为 X个, 则可以表述 2X个状态, 所述收发 延迟时间可以是以正交频分复用 (OFDM)符号 /子帧 /帧为单位进行计量, 例如上例中, 如果通知 UE延迟 1个子帧的时间, 具体信令可以利用 2X个状态 中的其中一个表示为 lsf ( 1个子帧) 或 0. lrf ( 0.1个无线帧) 或 14symbol (14个符号)或 lOslot (10个时隙), 也可以釆用其他表示形式, 在此不做 限定。 另一方面, 该信令也可以承载在系统信息类型块 SIB ( System information block), 具体的, 可以是 SIB-1/SIB-2/SIB-3等等, 承载的信 息内容可以如上所述, 也可以在 SIB信息中直接扩展字段, 所述扩展字段用 来指示 UE延迟收发转换时间, 且延迟的收发转换时间可以保证 UE能够正确 解读邻区的 SCH (同步信道)承载信息, 以此获得 CRS (小区特定参考信号) 的位置, 从而执行邻区测量。
另一方面, 第一基站也可以通过 RRC专有信令通知本小区服务的用户延 迟收发转换时间, 该 RRC专有信令承载的内容包括但不限于指示 UE是否需要 延迟转化时间, 指示 UE需要延迟的收发转换的具体时间, 该 RRC专有信令可 以针对一组具有相同特征的用户有效。 例如可以是需要进行邻区测量的用 户, 即当需要进行邻区测量的用户读到此 RRC专有信令时, 可以根据此信令 内容延迟所述信令通知的收发转换时间, 以保证可以正常进行邻区测量。
另一方面, 第一基站还可以通过物理层信令通知本小区服务的用户延 迟收发转换时间, 同样的, 该信令承载的内容包括但不限于指示 UE是否需
要延迟收发转换时间, 指示 UE具体所需要延迟的收发转换时间。 例如, 可 以利用物理下行控制信道 PDCCH中承载的冗余 b i t指示上述内容。 该冗余比 特信息可以通过承载寻呼信道(Pag ing )调度信息或承载系统消息块类型 1 ( S IB1 )调度信息或承载物理层随机接入信道(PRACH , Phys i ca l random acces s channe l )调度信息的 PDCCH获得, 进一步地, 由于对于 TDD (时分 双工) 系统而言, 寻呼信道总是位于 0号子帧, 因此 UE可以总是在 0号子帧 上检测调度寻呼信道的 PDCCH中的预留字段(即冗余比特), 从而获知在该 0 号子帧随后的一段时间内是否需要延迟收发转化时间, 以及如果需要延迟, 延迟的具体时间是多少; 另一方面, 由于 S IB1信息每 20ms转输一次, 即在 每个偶数无线帧中的 5号子帧进行传输, 因此 UE同样可以通过检测 S I B 1调度 信息的 PDCCH的预留字段(即冗余比特)获知在 5号子帧随后的一段时间内, 获知在该 5号子帧随后的一段时间内是否需要延迟收发转化时间, 以及如果 需要延迟, 延迟的具体时间是多少; 对于 PRACH信道也有类似的过程。
另外, 无论基站通过 RRC广播信令还是 RRC专有信令还是物理层信令将 指示用户设备 UE延迟收发转换时间内容通知给 UE , —旦 UE进行延迟收发转 换时间之后, 可以再通过其他信令通知 UE获知停止延迟收发转化时间, 该 信令可以承载在上述信令中, 即包括在内容 "指示 UE是否需要延迟收发转 化时间" 中, 也可以釆用新的 RRC广播信令或 RRC专有信令或物理层信令进 行指示。
此外, 具体地, 所述用户设备可以接收所述第一基站通过第一信令发 送的第一指示信息。 其中, 当所述第一指示信息包括所述第一基站釆用的 干扰协调机制的配置信息和所述第一基站的配置信息时, 可以釆用所述第 一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令 指示所述第一基站釆用的干扰协调机制的配置信息和所述第一基站的配置 信息; 或者, 也可以釆用所述第一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令指示所述用户设备所述第一基站釆用的干扰
协调机制的配置信息, 并釆用不同于上述信令的所述第一信令指示所述第 一基站的配置信息。 进一步地, 具体信令设计方式可以同前描述, 在此不 做赘述。
进一步地, 仍然第一基站 (宏基站 Macro)釆用配比 0, 第二基站 (微 基站 Pico)釆用配比 1, 第一基站和第二基站通过 fake UL subframe方案以 及子帧移位, 来规避第一基站对第二基站公共信道如同步信道 SCH/物理广 播信道 PBCH的干扰, 以及对第二基站子帧 1和子帧 6传输的物理下行控制信 道 PDCCH和 /或物理下行共享信道 PDSCH的干扰, 进一步地, 为了规避第一基 站对第二基站传输的 Paging信道以及 SIB-1信道的干扰, 第一基站还可以进 一步地将子帧 1和子帧 6中的下行部分(如下行导频时隙 DwPTS或下行子帧, 本例中, 由于 Macro釆用的是 TDD配比 0, 子帧 1和 6的下行部分对应的是 DwPTS ) 配置为近似空子帧 (ABS: Almost blank subframe )来进一步降低 对被干扰小区的 Paging信道以及 SIB-1信道的干扰。 近似空子帧是指在该子 帧上只有公共导频的传输, 或者只有公共导频的传输和有限的控制信道 (如 物理下行控制信道 PDCCH: physical downlink control channel)传输。 其 中, 上述近似空子帧上的有限控制信道可用于寻呼消息和 /或系统信息的调 度, 也可以用于其它广播信息或者单播信息的调度。 如前所述, 考虑到保 证对第一基站服务用户设备 UE的后向兼容性, 也可以在假上行子帧上传输 有限的上行信号, 诸如 UL ACK或 UL NACK。但是由于 Macro小区配置为 fake UL subframe的子帧 2和子帧 7 载的 UL ACK或 UL NACK信号对应的刚好是对子帧 6DwPTS承载的下行数据和子帧 lDwPTS承载的下行数据的 UL ACK或 UL NACK, 因此, 如前所述, 由于 Macro的子帧 1和 6已经配置为 ABS, 因此, 在子帧 1和 子帧 6上没有需要 UL ACK或 UL NACK的下行业务数据, 从而可以使得配置为 fake UL subframe的子帧 2和子帧 7上不承载任何上行信息, 从而进一步降 低了对 Pico小区下行子帧的干扰。 此外, 进一步地, 由于 Macro的子帧 2和 子帧 7的后一部分对应的是 P i co子帧 1和子帧 6的 UpPTS部分, 因此 Ma c r o还可
以在子帧 2和子帧 7后一部分即与 Pico小区子帧 1和子帧 6的 UpPTS重叠部分 配置某些上行信号的传输, 包括但不限于 PRACH的发送配置、 SRS的发送配 置等。
502a、 当所述第一指示信息为所述用户设备是否需要延迟收发转化时 间的信息, 和 /或收发转换延迟的具体时间信息时, 所述用户设备根据所述 需要延迟的收发转化时间确定能够对第二基站进行邻区测量的下行时刻。
其中, 所述第二基站是指与用户设备的服务基站相对应的邻区基站, 可以是被所述第一基站干扰的邻区基站, 也可以是和所述第一基站之间在 发送时间上存在时间移位信息的基站, 其中所述时间移位信息可以是整数 个 OFDM (正交频分复用, Orthogonal Frequency Division Multiplexing) 符号, 也可以是整数个时隙, 也可以是整数个子帧, 也可以是整数个无线 帧, 在此不做限定。
所述下行时刻可以是所述第二基站进行下行数据发送的时刻或者是所 述用户设备进行下行数据接收的时刻, 所述下行时刻可以用整数个 OFDM符 号来表示, 也可以用整数个时隙来表示, 也可以用整数个子帧来表示, 也 可以用整数个无线帧来表示, 在此不做限定。
503a, 所述用户设备在所述下行时刻对所述第二基站进行邻区测量。 所述邻区测量包括但不限于信道质量指示 CQI ( Channel Quality Indicator ), 预编码头巨阵指示 PMI ( Precoding Matrix Indicator ), 秩指 示 RI (Rank Indicator ), RRM (无线资源管理)相关测量等
502b, 当所述第一指示信息为所述第一基站釆用的干扰协调机制的配 置信息和所述第一基站的配置信息时, 所述用户设备根据所述第一指示信 息, 确定在第一上行时刻是否存在上行业务。
其中, 所述第一上行时刻可以是所述用户设备的服务基站 (本发明实 施例中为第一基站)进行上行数据接收的时刻或者所述用户设备进行上行 数据发送的时刻, 所述上行时刻可以用整数个 0FDM符号来表示, 也可以用
整数个时隙来表示, 也可以用整数个子帧来表示, 也可以用整数个无线帧 来表示, 在此不做限定。
所述上行业务可以是上行数据业务, 也可以是上行控制业务, 具体的, 可以是信道质量指示 CQI ( Channel Qua l i ty Indicator ) 、 预编码矩阵指 示 PMI ( Precoding Matr ix Indicator ) 、 秩指示 RI ( Rank Indicator )等 测参考符号)的发送、 PRACH (物理随机接入信道)发送, PUSCH (物理上行 共享信道)等。
503bl、 确定所述需要延迟的收发转化时间不为零, 并获取所述延迟的 收发转化时间。
其中, 所述需要延迟的收发转化时间不为零, 可以是所述需要延迟的 收发转化时间为正整数个或负整数个 OFDM符号, 或者为正整数个或负整数 个时隙, 或者为正整数个或负整数个子帧, 为正整数个或负整数个无线帧, 在此不做限定。 其中当所述需要延迟的收发转化时间为正整数个 OFDM符号 或正整数个时隙或正整数个子帧或正整数个无线帧时, 表示所述用户设备 需要在已有的收发转换时刻增加或减少所述需要延迟的收发转换时间。 反 之, 当所述需要延迟的收发转化时间为负整数个 OFDM符号或负整数个时隙 或负整数个子帧或负整数个无线帧时, 表示所述用户设备需要在已有的收 发转换时刻减少或增加所述需要延迟的收发转换时间。 其中, 已有的收发 转换时刻可以是 TDD系统中, DwPTS ( Downl ink Pi lot Time Slot 下行导频 时隙)和 UpPTS ( Upl ink Pi lot Time Slot上行导频时隙)之间的 GP ( Guard Per iod保护间隔)所包含的用户设备的收发转换时刻, 也可以是用户设备 从下行数据接收状态转换为上行数据发送状态所需要的设备器件状态转换 时间, 在此不做限定。
504bl、 所述用户设备根据所述需要延迟的收发转化时间确定能够对第 二基站进行邻区测量的下行时刻, 并且在所述下行时刻对所述第二基站进
行邻区测量。其中, 所述邻区测量包括但不限于信道质量指示 CQI (Channel Quality Indicator )、予贞编码矩阵指示 PMI ( Precoding Matrix Indicator )、 秩指示 RI (Rank Indicator ), RRM (无线资源管理)相关测量等。
例如, 首先, 第二基站向第一基站发起请求, 请求第一基站釆用干扰 协调机制, 例如 fake UL subf rame (假上行子帧)方案联合时间移位方案, 第一基站通过反馈请求应答信息,来确认是否釆用干扰协调机制,例如 fake UL subf rame方案联合时间移位方案。
其次, 如果第一基站确定干 ·ί尤协调机制, 例如 fake UL subf rame方案 联合时间移位方案, 则第一基站可以通过空口通知用户设备釆用了 fake UL subf rame方案以及 fake UL subf rame的具体配置。 即第一基站在配置干扰 协调机制之前, 可以和第二基站之间釆用上述方法进行交互, 以确定第一 基站是否釆用干扰协调机制, 例如 fake UL subf rame方案联合时间移位方 案。
最后, 用户设备获得此信息之后, 进一步的, 可以通过第一基站的配 置信息, 获知在 fake UL subf rame上是否存在自己的上行业务, 包括但不 限于信道质量指示 CQI ( Channel Quality Indicator ), 预编码矩阵指示 PMI ( Precoding Matrix Indicator ). 秩指示 RI ( Rank Indicator )等的反馈 上报、 UL ACK (上行确认应答) /UL NACK (上行否认应答)发送、 SRS (探测 参考符号)的发送、 PRACH (物理随机接入信道)发送等, 这些信息是否存 在于 fake UL subf rame可以通过已有的第一基站配置信息获得。 可选的, 第一基站还可以将被干扰小区的同步信道位置通知给用户设备, 以使得用 户设备可以获知邻区 CRS的位置信息。
至此, 用户设备通过以上信息判断在 fake UL subf rame上是否存在自 己的上行业务, 同时可以通过第二基站的同步信道位置信息或第二基站与 第一基站之间的时间移位信息, 判断第二基站的同步信道位置信息, 从而 可以根据自己的实际上行业务需求和 /或第二基站的同步信道位置信息来
调整收发转化时间, 从而确定对第二基站的测量时间, 完成对第二基站的 邻区测量。 如上信息的通知可以通过 RRC广播信令或 RRC专有信令或物理层 信令来获得。
503b2、 当存在所述上行业务时, 确定所述需要延迟的收发转化时间为 零, 即不延迟收发转化时间。 分双工 TDD灵活子帧配比场景, 3GPP LTE Re l-11 (第三代合作伙伴计划中 长期演进的版本十一) 引入了 TDD灵活子帧应用技术, 即在 TDD系统中配置 一些灵活子帧, 每个灵活子帧可以当上行使用, 也可以当下行使用, 还可 以暂时不用。 每个半帧中的最后两个子帧为灵活子帧, 如图 5所示, 其中 D 表示下行子帧、 S表示特殊子帧、 U表示上行子帧、 F表示灵活子帧。 此时, 如果通过信令通知或 UE自身获取的方式, 使得 UE可以获知在 S子帧后的 U子 帧没有对应的上行数据, 那么 UE可以先不进行收发转化, 即延迟收发转化 时间, 从而减少 UE收发转化的次数, 进而降低 UE端的复杂度。
本实施例提供一种用户设备, 可以实现图 5所示的方法, 如图 6所示, 所述装置包括: 接收单元 61、 确定单元 62、 测量单元 63。
接收单元 61 , 用于接收第一基站发送的第一指示信息。
可选地, 接收单元 61 , 具体可以用于接收所述第一基站通过第一信令 发送的第一指示信息。 其中, 所述第一基站可以是用户设备的服务基站, 也可以是和用户设 备的服务基站具有接口连接且具有发送信息功能的通信实体, 所述接口连 接可以是 X2接口, S1接口, 光纤接口, 无线接口, 在此不做限定; 所述通 信实体可以是和用户设备的服务基站具有所述接口连接的远程射频单元
( RRU, remote radio uni t ), 也可以是和用户设备的服务基站具有所述接 口连接的移动管理实体 ( MME, Mobi le Management Ent i ty ), 还可以是和 用户设备的服务基站具有所述接口连接的非服务基站, 在此不做限定。
当所述用户设备接收所述第一基站通过第一信令发送的第一指示信 息。 其中, 当所述第一指示信息包括所述用户设备是否需要延迟收发转化 时间的信息和收发转换延迟的具体时间信息时, 可以釆用所述第一信令即 无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令指示所述 用户设备是否需要延迟收发转化时间的信息和收发转换延迟的具体时间信 息。或者,也可以釆用所述第一信令即无线资源控制 RRC广播信令, 或者 RRC 专有信令, 或者物理层信令指示所述用户设备是否需要延迟收发转化时间 的信息, 并釆用不同于上述信令的所述第一信令指示所述用户设备收发转 换延迟的具体时间信息。 当所述第一指示信息包括所述用户设备是否需要 延迟收发转化时间的信息或收发转换延迟的具体时间信息时, 可以通过所 述第一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层 信令直接向所述用户设备发送所述第一指示信息。
此外, 当所述第一指示信息包括所述第一基站釆用的干扰协调机制的 配置信息和所述第一基站的配置信息时, 可以釆用所述第一信令即无线资 源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令指示所述第一基 站釆用的干扰协调机制的配置信息和所述第一基站的配置信息; 或者, 也 可以釆用所述第一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令指示所述用户设备所述第一基站釆用的干扰协调机制的配 置信息, 并釆用不同于上述信令的所述第一信令指示所述第一基站的配置 信息。
确定单元 62 , 用于根据所述接收单元 61接收到的所述第一指示信息, 确定需要延迟的收发转化时间, 并根据所述需要延迟的收发转化时间确定 能够对第二基站进行邻区测量的下行时刻。
其中, 所述第二基站是指与用户设备的服务基站相对应的邻区基站, 可以是被所述第一基站干扰的邻区基站, 也可以是和所述第一基站之间在 发送时间上存在时间移位信息的基站, 其中所述时间移位信息可以是整数
个 OFDM (正交频分复用, Orthogona l Frequency Divi s ion Mul t iplexing ) 符号, 也可以是整数个时隙, 也可以是整数个子帧, 也可以是整数个无线 帧, 在此不做限定。
所述下行时刻可以是所述第二基站进行下行数据发送的时刻或者是所 述接收单元 61进行下行数据接收的时刻, 所述下行时刻可以用整数个 OFDM 符号来表示, 也可以用整数个时隙来表示, 也可以用整数个子帧来表示, 也可以用整数个无线帧来表示, 在此不做限定。
可选地, 所述确定单元 62 , 具体可以用于:
根据所述第一基站釆用的干扰协调机制的配置信息和所述第一基站的 配置信息, 确定在第一上行时刻是否存在上行业务。
其中, 所述第一上行时刻可以是所述用户设备的服务基站 (本发明实 施例中为第一基站)进行上行数据接收的时刻或者所述用户设备进行上行 数据发送的时刻, 所述上行时刻可以用整数个 OFDM符号来表示, 也可以用 整数个时隙来表示, 也可以用整数个子帧来表示, 也可以用整数个无线帧 来表示, 在此不做限定。
所述上行业务可以是上行数据业务, 也可以是上行控制业务, 具体的, 可以是信道质量指示 CQI ( Channel Qua l i ty Indicator ), 预编码矩阵指示 PMI ( Precoding Matr ix Indicator ). 秩指示 RI ( Rank Indicator ) 等的 反馈上报、 UL ACK (上行确认应答) /UL NACK (上行否认应答)发送、 SRS (探 测参考符号)的发送、 PRACH (物理随机接入信道)发送, PUSCH (物理上行 共享信道)等。
当不存在所述上行业务时, 确定所述需要延迟的收发转化时间不为 其中, 所述需要延迟的收发转化时间不为零, 可以是所述需要延迟的 收发转化时间为正整数个或负整数个 OFDM符号, 或者为正整数个或负整数 个时隙, 或者为正整数个或负整数个子帧, 为正整数个或负整数个无线帧,
在此不做限定。 其中当所述需要延迟的收发转化时间为正整数个 OFDM符号 或正整数个时隙或正整数个子帧或正整数个无线帧时, 表示所述用户设备 需要在已有的收发转换时刻增加或减少所述需要延迟的收发转换时间。 反 之, 当所述需要延迟的收发转化时间为负整数个 OFDM符号或负整数个时隙 或负整数个子帧或负整数个无线帧时, 表示所述用户设备需要在已有的收 发转换时刻减少或增加所述需要延迟的收发转换时间。 其中, 已有的收发 转换时刻可以是 TDD系统中, DwPTS ( Downl ink Pi lot Time Slot 下行导频 时隙)和 UpPTS ( Upl ink Pi lot Time Slot上行导频时隙)之间的 GP ( Guard Per iod保护间隔)所包含的用户设备的收发转换时刻, 也可以是用户设备 从下行数据接收状态转换为上行数据发送状态所需要的设备器件状态转换 时间, 在此不做限定。
当存在所述上行业务时, 确定所述需要延迟的收发转化时间为零。 基站进行邻区测量。
其中, 所述邻区测量包括但不限于信道质量指示 CQI ( Channel Qua l i ty Indicator ), 预编码头巨阵指示 PMI ( Precoding Matr ix Indicator ), 秩指 示 RI ( Rank Indicator ), RRM (无线资源管理)相关测量等。
本发明实施例所提供的装置还可以应用于时分双工 TDD灵活子帧配比 场景, 与图 5所述方法的情况相似, 在此不再赘述。
本实施例提供一种用户设备收发转化时间的处理方法, 如图 7所示, 所 述方法包括:
701、 第一基站确认需要向用户设备发送的第一指示信息。
其中第一基站可以根据第一基站和第二基站之间的时间偏移信息确定 是否向用户设备发送第一指示信息, 第一基站还可以根据是否釆用了干扰 机制来减少对第二基站的干扰来确定是否向用户设备发送第一指示信息, 也可以根据其他方式确定是否向用户设备发送第一指示信息, 在此不做限
定。 其中, 所述干扰机制可以是第一基站釆用了假上行子帧 (fake UL subf rame ) 配置, 也可以是釆用了低功率发送子帧配置或者是近似空发送 子帧配置, 也可以是 fake UL subf rame配置联合使用时间移位技术, 也可 以是低功率发送子帧配置或者是近似空发送子帧配置联合使用时间移位技 术, 在此不做限定。
702、 所述第一基站通过第一信令向所述用户设备发送第一指示信息。 进一步地, 以使得所述用户设备根据所述第一指示信息, 确定需要延 迟的收发转化时间, 进而根据所述需要延迟的收发转化时间确定能够对第 二基站进行邻区测量的下行时刻并在所述下行时刻对所述第二基站进行邻 区测量。
其中, 当所述第一指示信息包括所述用户设备是否需要延迟收发转化 时间的信息和收发转换延迟的具体时间信息时, 可以釆用所述第一信令即 无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令同时指示 所述用户设备是否需要延迟收发转化时间的信息和收发转换延迟的具体时 间信息。 或者, 也可以釆用所述第一信令即无线资源控制 RRC广播信令, 或 者 RRC专有信令, 或者物理层信令指示所述用户设备是否需要延迟收发转化 时间的信息, 并釆用不同于上述信令的所述第一信令指示所述用户设备收 发转换延迟的具体时间信息。 当所述第一指示信息包括所述用户设备是否 需要延迟收发转化时间的信息或收发转换延迟的具体时间信息时, 可以通 过所述第一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物 理层信令直接向所述用户设备发送所述第一指示信息。
例如, 第一基站可以通过 RRC广播信令通知本小区服务的用户延迟收发 转化时间, 该信令承载的内容包括但不限于指示用户设备 UE是否需要延迟 收发转换时间, 指示 UE具体所需要延迟的收发转换时间。 该信令可以承载 在已有的 RRC广播信令中, 例如可以承载在物理广播信道 PBCH ( Phys i ca l broadcas t channe l ) 中, 利用其中的冗余比特(bi t )信息来指示本小区
服务的 UE是否需要延迟收发转换时间, 进一步的, 可以利用 lbi t信息来直 接指示 UE是否需要延迟收发转换时间, 此时 UE所需的延迟时间可以是第一 基站和 UE之间默认的, 例如可以在 UE现有的收发延迟转换时间基础上延迟 1 个子帧的时间; 或者也可以利用冗余 bi t信息来直接指示 UE所需的收发转换 延迟时间, 例如若 PBCH冗余 bi t个数为 X个, 则可以表述 2X个状态, 所述收发 延迟时间可以是以正交频分复用 (OFDM )符号 /子帧 /帧为单位进行计量, 例如上例中, 如果通知 UE延迟 1个子帧的时间, 具体信令可以利用 2X个状态 中的其中一个表示为 l sf ( 1个子帧) 或 0. l rf ( 0. 1个无线帧) 或 14symbol ( 14个符号)或 l Os lot ( 10个时隙), 也可以釆用其他表示形式, 在此不做 限定。 另一方面, 该信令也可以承载在系统信息类型块 SIB ( Sys tem informa t ion block ), 具体的, 可以是 S IB-1/SIB-2/SIB-3等等, 承载的信 息内容可以如上所述, 也可以在 SIB信息中直接扩展字段, 所述扩展字段用 来指示 UE延迟收发转换时间, 且延迟的收发转换时间可以保证 UE能够正确 解读邻区的 SCH (同步信道)承载信息, 以此获得 CRS (小区特定参考信号) 的位置, 从而执行邻区测量。
另一方面, 第一基站也可以通过 RRC专有信令通知本小区服务的用户延 迟收发转换时间, 该 RRC专有信令承载的内容包括但不限于指示 UE是否需要 延迟转化时间, 指示 UE需要延迟的收发转换的具体时间, 该 RRC专有信令可 以针对一组具有相同特征的用户有效。 例如可以是需要进行邻区测量的用 户, 即当需要进行邻区测量的用户读到此 RRC专有信令时, 可以根据此信令 内容延迟所述信令通知的收发转换时间, 以保证可以正常进行邻区测量。
另一方面, 第一基站还可以通过物理层信令通知本小区服务的用户延 迟收发转换时间, 同样的, 该信令承载的内容包括但不限于指示 UE是否需 要延迟收发转换时间, 指示 UE具体所需要延迟的收发转换时间。 例如, 可 以利用物理下行控制信道 PDCCH中承载的冗余 bi t指示上述内容。 该冗余比 特信息可以通过承载寻呼信道(Pag ing )调度信息或承载系统消息块类型 1
( S IB1 )调度信息或承载物理层随机接入信道(PRACH , Phys i ca l random acces s channe l )调度信息的 PDCCH获得, 进一步地, 由于对于 TDD (时分 双工) 系统而言, 寻呼信道总是位于 0号子帧, 因此 UE可以总是在 0号子帧 上检测调度寻呼信道的 PDCCH中的预留字段(即冗余比特), 从而获知在该 0 号子帧随后的一段时间内是否需要延迟收发转化时间, 以及如果需要延迟, 延迟的具体时间是多少; 另一方面, 由于 S IB1信息每 20ms转输一次, 即在 每个偶数无线帧中的 5号子帧进行传输, 因此 UE同样可以通过检测 S I B 1调度 信息的 PDCCH的预留字段(即冗余比特)获知在 5号子帧随后的一段时间内, 获知在该 5号子帧随后的一段时间内是否需要延迟收发转化时间, 以及如果 需要延迟, 延迟的具体时间是多少; 对于 PRACH信道也有类似的过程。
另外, 无论基站通过 RRC广播信令还是 RRC专有信令还是物理层信令将 指示用户设备 UE延迟收发转换时间内容通知给 UE , —旦 UE进行延迟收发转 换时间之后, 可以再通过其他信令通知 UE获知停止延迟收发转化时间, 该 信令可以承载在上述信令中, 即包括在内容 "指示 UE是否需要延迟收发转 化时间" 中, 也可以釆用新的 RRC广播信令或 RRC专有信令或物理层信令进 行指示。
此外, 具体地, 所述用户设备接收所述第一基站通过第一信令发送的 第一指示信息。 其中, 当所述第一指示信息包括所述第一基站釆用的干扰 协调机制的配置信息和所述第一基站的配置信息时, 可以釆用所述第一信 令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令指示 所述第一基站釆用的干扰协调机制的配置信息和所述第一基站的配置信 息; 或者,也可以釆用所述第一信令即无线资源控制 RRC广播信令, 或者 RRC 专有信令, 或者物理层信令指示所述用户设备所述第一基站釆用的干扰协 调机制的配置信息, 并釆用不同于上述信令的所述第一信令指示所述第一 基站的配置信息。 进一步地, 具体信令指示方式可以同前描述, 在此不做 赘述。
进一步地, 仍然第一基站 (宏基站 Macro )釆用配比 0 , 第二基站 (微 基站 Pico )釆用配比 1 , 第一基站和第二基站通过 fake UL subframe方案以 及子帧移位, 来规避第一基站对第二基站公共信道如同步信道 SCH/物理广 播信道 PBCH的干扰, 以及对第二基站子帧 1和子帧 6传输的物理下行控制信 道 PDCCH和 /或物理下行共享信道 PDSCH的干扰, 进一步地, 为了规避第一基 站对第二基站传输的 Pag ing信道以及 S IB-1信道的干扰, 第一基站还可以进 一步地将子帧 1和子帧 6中的下行部分(如下行导频时隙 DwPTS或下行子帧, 本例中, 由于 Macro釆用的是 TDD配比 0 , 子帧 1和 6的下行部分对应的是 DwPTS ) 配置为近似空子帧 (ABS: Almos t blank subframe )来进一步降低 对被干扰小区的 Pag ing信道以及 SIB-1信道的干扰。 近似空子帧是指在该子 帧上只有公共导频的传输, 或者只有公共导频的传输和有限的控制信道 (如 物理下行控制信道 PDCCH: phys ica l downl ink control channe l)传输。 其 中, 上述近似空子帧上的有限控制信道可用于寻呼消息和 /或系统信息的调 度, 也可以用于其它广播信息或者单播信息的调度。 如前所述, 考虑到保 证对第一基站服务用户设备 UE的后向兼容性, 也可以在假上行子帧上传输 有限的上行信号, 诸如 UL ACK或 UL NACK。但是由于 Macro小区配置为 fake UL subframe的子帧 2和子帧 77 载的 UL ACK或 UL NACK信号对应的刚好是对子帧 6DwPTS承载的下行数据和子帧 lDwPTS承载的下行数据的 UL ACK或 UL NACK, 因此, 如前所述, 由于 Macro的子帧 1和 6已经配置为 ABS , 因此, 在子帧 1和 子帧 6上没有需要 UL ACK或 UL NACK的下行业务数据, 从而可以使得配置为 fake UL subframe的子帧 2和子帧 7上不承载任何上行信息, 从而进一步降 低了对 Pico小区下行子帧的干扰。 此外, 进一步地, 由于 Macro的子帧 2和 子帧 7的后一部分对应的是 P i co子帧 1和子帧 6的 UpPTS部分, 因此 Ma c r o还可 以在子帧 2和子帧 7后一部分即与 Pico小区子帧 1和子帧 6的 UpPTS重叠部分 配置某些上行信号的传输, 包括但不限于 PRACH的发送配置、 SRS的发送配 置等。
景。 例如, 时分双工 TDD灵活子帧配比场景, 3GPP LTE Re l-11 (第三代合 作伙伴计划中长期演进的版本十一)引入了 TDD灵活子帧应用技术,即在 TDD 系统中配置一些灵活子帧, 每个灵活子帧可以当上行使用, 也可以当下行 使用, 还可以暂时不用。 每个半帧中的最后两个子帧为灵活子帧, 如图 5所 示, 其中 D表示下行子帧、 S表示特殊子帧、 U表示上行子帧、 F表示灵活子 帧此时, 如果通过信令通知或 UE自身获取的方式, 使得 UE可以获知在 S子帧 后的 U子帧没有对应的上行数据, 那么 UE可以先不进行收发转化, 即延迟收 发转化时间, 从而减少 UE收发转化的次数, 进而降低 UE端的复杂度。
本实施例提供一种用户设备收发转化时间的处理装置, 如图 8所示, 所 述装置包括: 确认单元 81、 发送单元 82。
确认单元 81 , 用于确认需要向用户设备发送的第一指示信息。
其中确认单元 81可以根据第一基站和第一基站之间的时间偏移信息确 定是否向用户设备发送第一指示信息, 确认单元 81还可以根据是否釆用了 干扰机制来减少对第二基站的干扰来确定是否向用户设备发送第一指示信 息, 也可以根据其他方式确定是否向用户设备发送第一指示信息, 在此不 做限定。 其中, 所述干扰机制可以是第一基站釆用了假上行子帧 (fake UL subf rame ) 配置, 也可以是釆用了低功率发送子帧配置或者是近似空发送 子帧配置, 也可以是 fake UL subf rame配置联合使用时间移位技术, 也可 以是低功率发送子帧配置或者是近似空发送子帧配置联合使用时间移位技 术, 在此不做限定。
发送单元 82 , 用于向所述用户设备发送所述确认单元 81确认的所述第 一指示信息; 以使得所述用户设备根据所述第一指示信息, 确定需要延迟 的收发转化时间, 进而根据所述需要延迟的收发转化时间确定能够对第二 基站进行邻区测量的下行时刻并在所述下行时刻对所述第二基站进行邻区 测量。
可选地, 所述发送单元 82 , 具体可以用于
通过第一信令向所述用户设备发送第一指示信息。
其中, 当所述第一指示信息包括所述用户设备是否需要延迟收发转化 时间的信息和收发转换延迟的具体时间信息时, 可以釆用所述第一信令即 无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令同时指示 所述用户设备是否需要延迟收发转化时间的信息和收发转换延迟的具体时 间信息。 或者, 也可以釆用所述第一信令即无线资源控制 RRC广播信令, 或 者 RRC专有信令, 或者物理层信令指示所述用户设备是否需要延迟收发转化 时间的信息, 并釆用不同于上述信令的所述第一信令指示所述用户设备收 发转换延迟的具体时间信息。 当所述第一指示信息包括所述用户设备是否 需要延迟收发转化时间的信息或收发转换延迟的具体时间信息时, 可以通 过所述第一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物 理层信令直接向所述用户设备发送所述第一指示信息。
此外, 当所述第一指示信息包括所述第一基站釆用的干扰协调机制的 配置信息和所述第一基站的配置信息时, 可以釆用所述第一信令即无线资 源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令指示所述第一基 站釆用的干扰协调机制的配置信息和所述第一基站的配置信息; 或者, 也 可以釆用所述第一信令即无线资源控制 RRC广播信令, 或者 RRC专有信令, 或者物理层信令指示所述用户设备所述第一基站釆用的干扰协调机制的配 置信息, 并釆用不同于上述信令的所述第一信令指示所述第一基站的配置 信息。
本发明实施例提供的装置还可应用于时分双工 TDD灵活子帧配比场景, 与图 7所述方法的情况相似, 在此不再赘述。
本发明实施例提供的用户设备收发转化时间的处理方法及装置, 首先 第一基站向用户设备发送第一指示信息, 然后所述用户设备根据所述第一 指示信息, 确定需要延迟的收发转化时间, 最后所述用户设备根据所述需
要延迟的收发转化时间确定能够对第二基站进行邻区测量的下行时刻, 所 述用户设备在所述下行时刻对所述第二基站进行邻区测量。 现有技术虽然 可以消除基站之间共信道干扰问题, 但是会导致第一基站服务的用户设备 无法对第二基站进行邻区测量。 而本发明实施例在消除基站之间共信道干 扰问题的同时, 通过延迟用户设备收发转化时间, 依然可以对第二基站进 行正常的邻区测量, 这样在保证了信道质量的同时, 又进行了邻区测量。
本发明实施例提供的用户设备收发转化时间的处理装置可以实现上述 提供的方法实施例, 具体功能实现请参见方法实施例中的说明, 在此不再 赘述。 本发明实施例提供的用户设备收发转化时间的处理方法及装置可以 适用于无线通信系统领域, 但不仅限于此。
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, 所述的程序可存储 于一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, 所述的存储介质可为磁碟、 光盘、 只读存储记忆体
( Read-On ly Memory, ROM )或随机存储记忆体 ( Random Acces s Memory, RAM )等。
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局 限于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可 轻易想到的变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发 明的保护范围应该以权利要求的保护范围为准。
Claims
1、 一种用户设备收发转化时间的处理方法, 其特征在于, 包括: 用户设备接收第一基站发送的第一指示信息;
所述用户设备根据所述第一指示信息, 确定需要延迟的收发转化时间; 所述用户设备根据所述需要延迟的收发转化时间确定能够对第二基站 进行邻区测量的下行时刻;
所述用户设备在所述下行时刻对所述第二基站进行邻区测量。
2、 根据权利要求 1所述的方法, 其特征在于, 所述用户设备接收第一 基站发送的第一指示信息, 包括:
所述用户设备接收所述第一基站通过第一信令发送的第一指示信息, 其中所述第一信令包括:
无线资源控制 RRC广播信令,或者 RRC专有信令,或者物理层信令。
3、 根据权利要求 1所述的方法, 其特征在于,
所述第一指示信息包括: 所述用户设备是否需要延迟收发转化时间的 信息, 和 /或收发转换延迟的具体时间信息。
4、 根据权利要求 1所述的方法, 其特征在于, 所述第一指示信息包括: 所述第一基站釆用的干扰协调机制的配置信息和所述第一基站的配置信 息;
所述用户设备根据所述第一指示信息, 确定需要延迟的收发转化时间 包括:
根据所述第一基站釆用的干扰协调机制的配置信息和所述第一基站的 配置信息, 确定在第一上行时刻是否存在上行业务;
当不存在所述上行业务时, 确定所述需要延迟的收发转化时间不为零; 当存在所述上行业务时, 确定所述需要延迟的收发转化时间为零。
5、 一种用户设备收发转化时间的处理方法, 其特征在于, 包括:
第一基站确认需要向用户设备发送的第一指示信息;
所述第一基站向所述用户设备发送所述第一指示信息; 以使得所述用 户设备根据所述第一指示信息, 确定需要延迟的收发转化时间, 进而根据 所述需要延迟的收发转化时间确定能够对第二基站进行邻区测量的下行时 刻并在所述下行时刻对所述第二基站进行邻区测量。
6、 根据权利要求 5所述的方法, 其特征在于, 所述第一基站向所述用 户设备发送第一指示信息包括: 所述第一基站通过第一信令向所述用户设 备发送第一指示信息, 其中, 所述第一信令包括:
无线资源控制 RRC广播信令,或者 RRC专有信令,或者物理层信令。
7、 根据权利要求 5所述的方法, 其特征在于, 所述第一指示信息包括: 所述用户设备是否需要延迟收发转化时间的信息, 和 /或收发转换延迟的具 体时间信息。
8、 根据权利要求 5所述的方法, 其特征在于, 所述第一指示信息包括: 所述第一基站釆用的干扰协调机制的配置信息和所述第一基站的配置信 息, 以使得所述用户设备根据所述第一基站釆用的干扰协调机制的配置信 息和所述第一基站的配置信息, 确定在第一上行时刻是否存在上行业务。
9、 一种用户设备, 其特征在于, 包括:
接收单元, 用于接收第一基站发送的第一指示信息;
确定单元, 用于根据所述接收单元接收到的所述第一指示信息, 确定 需要延迟的收发转化时间; 并根据所述需要延迟的收发转化时间确定能够 对第二基站进行邻区测量的下行时刻; 进行邻区测量。
10、 根据权利要求 9所述的用户设备, 其特征在于, 所述接收单元具体 用于接收所述第一基站通过第一信令发送的第一指示信息, 其中, 所述第 一信令包括:
无线资源控制 RRC广播信令,或者 RRC专有信令,或者物理层信令。
1 1、 根据权利要求 9所述的用户设备, 其特征在于, 所述接收单元接收 到的第一指示信息包括:
所述用户设备是否需要延迟收发转化时间的信息, 和 /或收发转换延迟 的具体时间信息。
12、 根据权利要求 9所述的用户设备, 其特征在于, 所述接收单元接收 到的所述第一指示信息包括:
所述第一基站釆用的干扰协调机制的配置信息和所述第一基站的配置 信息;
所述确定单元具体用于:
根据所述第一基站釆用的干扰协调机制的配置信息和
所述第一基站的配置信息, 确定在第一上行时刻是否存在上行业务; 当不存在所述上行业务时, 确定所述需要延迟的收发转化时间不为零; 当存在所述上行业务时, 确定所述需要延迟的收发转化时间为零。
1 3、 一种基站, 其特征在于, 包括:
确认单元, 用于确认需要向用户设备发送的第一指示信息;
发送单元, 用于向所述用户设备发送所述确认单元确认的所述第一指 示信息; 以使得所述用户设备根据所述第一指示信息, 确定需要延迟的收 发转化时间, 进而根据所述需要延迟的收发转化时间确定能够对第二基站 进行邻区测量的下行时刻并在所述下行时刻对所述第二基站进行邻区测 量。
14、 根据权利要求 1 3所述的基站, 其特征在于, 所述发送单元具体用 于通过第一信令向所述用户设备发送第一指示信息, 其中, 所述第一信令 包括:
无线资源控制 RRC广播信令,或者 RRC专有信令,或者物理层信令。
15、 根据权利要求 1 3所述的基站, 其特征在于, 所述确认单元确认的 第一指示信息包括: 所述用户设备是否需要延迟收发转化时间的信息, 和 / 或收发转换延迟的具体时间信息。
16、 根据权利要求 1 3所述的基站, 其特征在于, 所述确认单元确认的 第一指示信息包括: 所述基站釆用的干扰协调机制的配置信息和所述基站 的配置信息, 以使得所述用户设备根据所述基站釆用的干扰协调机制的配 置信息和所述第一基站的配置信息, 确定在第一上行时刻是否存在上行业 务。
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EP2779748A1 (en) | 2014-09-17 |
EP2779748A4 (en) | 2015-06-03 |
CN103139784B (zh) | 2015-11-25 |
US9615372B2 (en) | 2017-04-04 |
CN103139784A (zh) | 2013-06-05 |
US20140307662A1 (en) | 2014-10-16 |
EP2779748B1 (en) | 2018-03-07 |
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