WO2014048155A1 - 时分双工上/下行配置的更新方法和设备 - Google Patents
时分双工上/下行配置的更新方法和设备 Download PDFInfo
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- WO2014048155A1 WO2014048155A1 PCT/CN2013/078867 CN2013078867W WO2014048155A1 WO 2014048155 A1 WO2014048155 A1 WO 2014048155A1 CN 2013078867 W CN2013078867 W CN 2013078867W WO 2014048155 A1 WO2014048155 A1 WO 2014048155A1
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- WIPO (PCT)
- Prior art keywords
- downlink configuration
- tdd uplink
- updated
- base station
- terminal
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1854—Scheduling and prioritising arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1887—Scheduling and prioritising arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1864—ARQ related signaling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1896—ARQ related signaling
Definitions
- the present invention relates to the field of wireless communications, and in particular, to a method and an apparatus for updating a time division duplex uplink/downlink configuration. Background technique
- LTE Long Term Evolution
- TDD Time Division Duplex
- a radio frame length is 10ms, including 10 subframes, including special subframes and regular subframes, each sub-frame.
- the frame is lms.
- the special subframe is divided into three slots: DwPTS (Downlink Pilot Slot), GP (Guard Period), and UpPTS (Uplink Pilot Slot).
- the regular subframe is further divided into an uplink subframe and a downlink subframe, which are used for transmitting uplink/downlink control signaling and service data, respectively.
- TDD UL/DL (upstream and downstream) configurations are defined for the LTE TDD system, as shown in Table 1 below.
- the common features of the seven TDD UL/DL configurations are as follows: In a radio frame, two special subframes (subframe #1 and subframe #6) can be configured, or only one special subframe (subframe #1) can be configured. ; Subframe #0 and subframe #5 and DwPTS in special subframes are always used for downlink transmission; Subframe #2 and UpPTS in special subframes are always used for uplink transmission; other subframes can be configured as needed For uplink transmission or downlink transmission.
- the LTE system information is divided into MIB (Master Information Block) and SIB (System Information Block).
- the MIB contains only limited information, such as the most important and most frequently transmitted parameters.
- the SIB currently includes SIB1-SIB15. According to the current protocol, TDD UL/DL configuration information is included in SIB1. Therefore, only SIB1 is introduced here.
- the system information update process introduces the concept of the BCCH (Broadcast Control Channel) modification period.
- the minimum BCCH modification period is 640ms, as shown in Figure 2.
- the system information of the terminal and the network side may be inconsistent for a period of time.
- the BCCH modification period starts at n+1
- the network starts to use the new system information
- the terminal only starts after receiving the MIB and the SIB.
- the new system information is used, so that the understanding of the system information of the terminal and the network update is inconsistent in the initial period of the BCCH modification period, as shown in FIG. 2 .
- the TDD UL/DL configuration change in LTE Release 8 (R8) is also implemented using the above system information update process.
- the TDD UL/DL configuration information is included in SIB1.
- SIB1 obtains the changed TDD UL/DL configuration information.
- the base station and the terminal may have different understandings of the current TDD UL/DL configuration for a period of time.
- LTE R8 generally believes that the TDD UL/DL configuration will not change substantially. Even if the change is changed once every day, the TDD UL/DL configuration change will cause inconsistency between the base station and the terminal, but since the change frequency is quite low, The impact is negligible and is not specified in the standard.
- the TDD UL/DL configuration mode of the LTE R8 is static or semi-static, the TDD UL/DL configuration cannot be flexibly adjusted according to service characteristics. Therefore, it is not conducive to improving system resource utilization and better guaranteeing QoS for service transmission.
- the project introduced a more dynamic TDD UL/DL configuration change mechanism to shorten the TDD UL/DL configuration change frequency from a thousand days to If thousands of ms.
- the TDD UL/DL configuration change notification methods introduced in the LTE TDD elMTA project are mainly as follows:
- Method 1.1 Reusing the system information update process of LTE R8, notifying the terminal of the updated TDD UL/DL configuration information by using SIB1 or MIB or other SIB;
- Method 1.2 Reuse the LTE R10 ETWS (Earthquake and Tsunami Warning System) notification process, that is, first notify the TDD UL/DL configuration change by paging, and then the terminal reads the new TDD in the system information.
- the UL/DL configuration indication is used to obtain updated TDD UL/DL configuration information.
- Method 2 RRC (Radio Resource Control) signaling, that is, the TDD UL/DL configuration information after the terminal is changed by the RRC signaling;
- RRC Radio Resource Control
- Method 3 MAC (Medium Access Control), that is, the MAC CE (Control Element) is used to notify the terminal of the changed TDD UL/DL configuration information;
- Method 4 PDCCH (Physical Downlink Control Channel), that is, the TDD UL/DL configuration information after the terminal is changed by the PDCCH.
- PDCCH Physical Downlink Control Channel
- the supported TDD UL/DL minimum reconfiguration intervals are as shown in Table 2 below:
- the TDD UL/DL configuration change notification method introduced by the LTE TDD UL/DL elMTA project may have inconsistencies in the understanding of TDD UL/DL configuration between the base station and the terminal, which will affect scheduling and HARQ (Hybrid Automatic Repeat reQuest). Request) mechanism.
- HARQ Hybrid Automatic Repeat reQuest. Request
- the terminal receives the paging message in the BCCH modification period n, and after reading the SIB1 in the BCCH modification period n+1 to obtain the updated TDD UL/DL configuration information, the updated TDD UL/DL configuration information is used to the terminal. It takes effect immediately, but the ⁇ & station cannot know when the terminal correctly parses out SIB1, so there may be a period of time during the BCCH change period n+1 that the base station and the terminal have an inconsistent understanding of the TDD UL/DL configuration. As shown in Figure 3.
- the terminal after receiving the RRC signaling and successfully completing the parsing, the terminal can obtain the updated TDD UL/DL configuration information and take effect, but the base station does not know when the terminal is received before receiving the RRC reconfiguration complete message.
- the RRC message is correctly parsed and applied. Therefore, the understanding of the TDD UL/DL configuration by the base station and the terminal may be inconsistent during this period, as shown in FIG. 4 . Summary of the invention
- the embodiment of the invention provides a method and a device for updating the time division duplex uplink/downlink configuration, which are used to avoid the problem that the base station and the terminal have inconsistent understanding of the TDD uplink/downlink configuration, so as to ensure system transmission performance.
- An update method for a time division duplex TDD uplink/downlink configuration comprising:
- the base station After updating the TDD uplink/downlink configuration of the cell, the base station sends the updated TDD uplink/downlink configuration information to the terminal in the cell;
- the base station determines the effective time of the updated TDD uplink/downlink configuration according to the same effective time determining method as the terminal, and starts to use the updated TDD uplink/downlink configuration for data transmission when the effective time arrives.
- a method for updating a time division duplex TDD uplink/downlink configuration comprising:
- the terminal receives the updated TDD uplink/downlink configuration information sent by the base station;
- the terminal determines the effective time of the updated TDD uplink/downlink configuration according to the same effective time determining method as the base station, and starts to use the updated TDD uplink/downlink configuration for data transmission when the effective time arrives.
- a base station comprising:
- a sending unit configured to: after updating the TDD uplink/downlink configuration of the cell, send the updated TDD uplink/downlink configuration information to the terminal in the cell;
- a determining unit configured to determine an effective time of the updated TDD uplink/downlink configuration according to the same effective time determining method as the terminal;
- a transmission unit configured to start using the updated TDD uplink/downlink configuration for data transmission when the effective time arrives.
- a terminal comprising:
- a receiving unit configured to receive information about the updated TDD uplink/downlink configuration sent by the base station
- a determining unit configured to determine, by the terminal, an effective time of the updated TDD uplink/downlink configuration according to the same effective time determining method as the base station;
- a transmission unit configured to start using the updated TDD uplink/downlink configuration for data transmission when the effective time arrives.
- the base station after updating the TDD uplink/downlink configuration of the cell, the base station sends the updated TDD uplink/downlink configuration information to the terminal in the cell; the base station determines the same effective time as the terminal.
- the method determines the effective time of the updated TDD uplink/downlink configuration, and starts to use the updated TDD uplink/downlink configuration for data transmission when the effective time arrives; the terminal receives the updated TDD uplink/downlink configuration sent by the base station.
- the information determines the effective time of the updated TDD uplink/downlink configuration according to the same effective time determination method as the base station, and starts to use the updated TDD uplink/downlink configuration for data transmission when the effective time arrives.
- the base station and the terminal determine the effective time of the updated TDD uplink/downlink configuration according to the same effective time determining method, and start to use the updated TDD uplink/downlink configuration for data transmission when the effective time arrives.
- the data transmission of the TDD uplink/downlink configuration before the update is used, so that the base station and the terminal start.
- the use of the same TDD uplink/downlink configuration avoids the problem of inconsistent understanding of the TDD uplink/downlink configuration between the base station and the terminal, thereby avoiding scheduling and HARQ mechanisms due to inconsistent understanding of the TDD uplink/downlink configuration by the base station and the terminal.
- the problem of impact ensures the transmission performance of the system.
- FIG. 1 is a schematic diagram of a frame structure of a TD-LTE system in the background art
- FIG. 2 is a schematic diagram of system information update of an LTE system in the background art
- FIG. 3 is a schematic diagram of inconsistency between the base station and the terminal in understanding the TDD UL/DL configuration in the method 1.1 in the background
- FIG. 4 is a schematic diagram of the inconsistency between the base station and the terminal in understanding the TDD UL/DL configuration in the method 2 in the background art
- FIG. 6 is a schematic flowchart of another method according to an embodiment of the present disclosure.
- FIG. 7 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
- FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
- FIG. 9 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
- FIG. 10 is a schematic structural diagram of another terminal according to an embodiment of the present invention. detailed description
- the embodiment of the present invention provides an update method of the TDD uplink/downlink configuration.
- an embodiment of the present invention provides an update method for a TDD uplink/downlink configuration provided by a network side, including the following steps:
- Step 50 After updating the TDD uplink/downlink configuration of the cell, the base station sends the updated TDD uplink/downlink configuration information to the terminal in the cell.
- Step 51 The base station determines the effective time of the updated TDD uplink/downlink configuration, and starts to use the updated TDD uplink/downlink configuration for data transmission when the effective time arrives.
- the base station sends the updated TDD uplink/downlink configuration information to the terminal in the cell, and specifically adopts one of the following four methods:
- Method 1 The base station notifies the terminal system information in the cell to change through a paging message in a BCCH modification period, and sends the updated system information in the next BCCH modification period, and the updated system information carries the updated information.
- Method 2 The base station notifies the terminal TDD in the cell by using a paging message within a BCCH modification period.
- the IE is carried in the MIB or the SIB1 or other SIBs.
- Method 3 The base station sends the updated TDD uplink/downlink configuration information through the MIB during a change period of the TDD uplink/downlink configuration;
- Method 4 The base station sends the updated TDD uplink/downlink configuration information to the terminal in the cell by using RRC signaling or MAC signaling.
- Method 5 The base station sends the updated TDD uplink/downlink configuration information to the terminal in the cell through the PDCCH.
- the base station determines the effective time of the updated TDD uplink/downlink configuration, and the specific implementation may be as follows:
- the base station determines that the updated TDD uplink/downlink configuration effective time is the Nth millisecond after the start time of the next BCCH modification period; or
- the base station further carries the updated TDD uplink/downlink configuration effective time in the paging message or the updated system information, and the base station determines that the updated TDD uplink/downlink configuration effective time is the paging message or the The effective time carried in the updated system information.
- the effective time carried in the paging message or the updated system information may be an absolute time, such as a certain subframe of a certain radio frame.
- the value of N is the length of the m MIB scheduling period
- the value of N is the length of time of the m SIB1 scheduling periods
- the value of N is the length of time of m scheduling information windows (Si-window);
- N is the length of time of m BCCH tampering periods
- m is an integer of not less than 1, and the base station and the terminal may pre-arrange the value of m, or specify a value of m by the protocol, or the base station may use signaling (such as RRC signaling or MAC signaling or PDCCH signaling) The value of m is notified to the terminal.
- step 51 the base station determines the effective time of the updated TDD uplink/downlink configuration, and the specific implementation may be as follows:
- the base station carries the paging time of the change notification of the TDD uplink/downlink configuration or the system information of the information of the uplink/downlink configuration of the updated TDD, and carries the updated effective time of the TDD uplink/downlink configuration, and the base station determines the update.
- the effective time of the TDD uplink/downlink configuration is the effective time carried in the paging message carrying the change notification of the TDD uplink/downlink configuration or the system information carrying the updated TDD uplink/downlink configuration information.
- the effective time carried in can be an absolute time, such as a certain subframe of a radio frame.
- step 51 the base station determines the effective time of the updated TDD uplink/downlink configuration, and the specific implementation may be as follows:
- the base station determines that the updated TDD uplink/downlink configuration effective time is the start time of the Xth TDD uplink/downlink configuration change cycle after the TDD uplink/downlink configuration change cycle, and X is an integer not less than 1.
- the base station and the terminal may pre-agreed the value of X, or the protocol specifies the value of X, or the base station notifies the terminal of the value of X by signaling.
- the base station may pre-arrange the length of the change period of the TDD uplink/downlink configuration with the terminal; or, the base station notifies the terminal of the length of the change period of the TDD uplink/downlink configuration in advance through the MIB or the dedicated signaling.
- the dedicated signaling may be RRC signaling or MAC signaling or PDCCH signaling.
- step 51 the base station determines the effective time of the updated TDD uplink/downlink configuration, and the specific implementation may be as follows:
- the base station determines that the effective time of the updated TDD uplink/downlink configuration is the k1th subframe after the subframe n, and the subframe n is the subframe in which the RRC signaling or the MAC signaling is sent by the base station, where k1 is an integer not less than 1.
- the base station sends the updated TDD uplink/downlink configuration effective time to the terminal by using signaling, such as RRC signaling or MAC signaling or PDCCH signaling, and the base station determines that the updated TDD uplink/downlink configuration effective time is The effective time sent to the terminal.
- the effective time that the base station sends to the terminal may be an absolute time, such as a certain subframe of a certain radio frame.
- the value of k1 is pre-agreed by the base station and the terminal, or specified by the protocol, or the base station notifies the terminal of the value of k1 by signaling (such as RRC signaling or MAC signaling or PDCCH signaling).
- signaling such as RRC signaling or MAC signaling or PDCCH signaling.
- step 51 the base station determines the effective time of the updated TDD uplink/downlink configuration, and the specific implementation may be as follows:
- the base station determines that the effective time of the updated TDD uplink/downlink configuration is the k2th subframe after the subframe n, and the subframe n is the subframe in which the base station sends the PDCCH signaling, and k2 is an integer not less than 1, for example, the value is 10 Or,
- the base station sends the updated TDD uplink/downlink configuration effective time to the terminal by using signaling, such as RRC signaling or MAC signaling or PDCCH signaling, and the base station determines that the updated TDD uplink/downlink configuration effective time is The effective time sent to the terminal.
- the effective time that the base station sends to the terminal may be an absolute time, such as a certain subframe of a certain radio frame.
- the signaling used by the base station to send the effective time to the terminal may be signaling or other signaling used to send the updated TDD uplink/downlink configuration information.
- the base station sends the updated TDD uplink/downlink configuration information and the updated TDD uplink/downlink configuration effective time to the terminal through RRC signaling, or the base station sends the updated TDD uplink/downlink to the terminal through RRC signaling.
- the configured information is sent to the terminal through the MAC signaling to the effective time of the updated TDD uplink/downlink configuration.
- the value of k2 is pre-agreed by the terminal and the base station, or the base station notifies the terminal of the value of k2 by signaling in advance.
- the method for updating the TDD uplink/downlink configuration on the terminal side includes the following steps:
- Step 60 The terminal receives the updated TDD uplink/downlink configuration information sent by the base station.
- Step 61 The terminal determines the effective time of the updated TDD uplink/downlink configuration, and starts to use the updated TDD uplink/downlink configuration for data transmission when the effective time arrives.
- the terminal receives the updated TDD uplink/downlink configuration information sent by the base station, and specifically adopts one of the following four methods:
- Method 1 The terminal receives the system information change notification sent by the base station by using the paging message in a BCCH modification period, starts receiving the updated system information sent by the base station in the next BCCH modification period, and obtains the updated system information from the updated system information.
- Updated TDD uplink/downlink configuration information
- Method 2 The terminal receives the change indication of the TDD uplink/downlink configuration sent by the base station by using the paging message in a BCCH modification period, and immediately starts receiving the system information, and obtains the updated TDD uplink/downlink configuration information from the system information. ;
- Method 3 The terminal receives information of the updated TDD uplink/downlink configuration sent by the base station in the TDD uplink/downlink configuration change period and sent by the MIB;
- Method 4 The terminal receives information of the updated TDD uplink/downlink configuration sent by the base station through RRC signaling or MAC signaling;
- Method 5 The terminal receives information of the updated TDD uplink/downlink configuration sent by the base station through the PDCCH signaling.
- the terminal determines the effective time of the updated TDD uplink/downlink configuration, and the specific implementation may be as follows:
- the terminal determines that the updated TDD uplink/downlink configuration takes effect on the Nth millisecond after the start time of the BCCH modification period of receiving the updated system information;
- the terminal determines the effective time carried in the paging message or the updated system information as the The effective time of the updated TDD uplink/downlink configuration.
- the value of N is the length of time of the m MIB scheduling periods
- the value of ⁇ is the length of time of the m SIB1 scheduling periods; or
- the value of N is m scheduling information windows.
- N is the length of time of m BCCH tampering periods
- n is an integer not less than one.
- the terminal When the method 2 is used, the terminal immediately starts receiving the system information, and obtains the updated TDD uplink/downlink configuration information from the system information, and the specific implementation may be as follows:
- the terminal If the updated TDD uplink/downlink configuration information is carried in the MIB, the terminal immediately reads the MIB after receiving the paging message, and obtains the updated TDD uplink/downlink configuration information from the newly added IE in the MIB. ;
- the terminal If the updated TDD uplink/downlink configuration information is carried in the SIB1, the terminal immediately reads the SIB 1 after receiving the paging message, and obtains the updated TDD uplink/downlink configuration from the newly added IE in the SIB 1. of;
- the terminal immediately reads the SIB1 to obtain the scheduling information of the SIB including the updated TDD uplink/downlink configuration information after receiving the paging message.
- the SIB is read according to the scheduling information.
- step 61 the terminal determines the effective time of the updated TDD uplink/downlink configuration, and the specific implementation may be as follows:
- the terminal sends the paging message or the carrying The effective time carried in the system information of the updated TDD uplink/downlink configuration information is determined as the effective time of the updated TDD uplink/downlink configuration.
- step 61 the terminal determines the effective time of the updated TDD uplink/downlink configuration, and the specific implementation may be as follows:
- the terminal determines that the updated TDD uplink/downlink configuration effective time is the start time of the Xth TDD uplink/downlink configuration change period after the TDD uplink/downlink configuration change cycle, and X is an integer not less than 1.
- the value of X is pre-agreed by the base station and the terminal or notified by the base station to the terminal.
- the terminal reads the MIB at least once during the period of a TDD uplink/downlink configuration.
- the terminal may pre-arrange the length of the change period of the TDD uplink/downlink configuration with the base station; or, the terminal receives the time length of the change period of the TDD uplink/downlink configuration that the base station sends in advance through the MIB or the dedicated signaling;
- the start time of the change cycle of the Xth TDD uplink/downlink configuration after the change cycle of the TDD uplink/downlink configuration is determined according to the time length of the change cycle of the TDD uplink/downlink configuration.
- the terminal determines the effective time of the updated TDD uplink/downlink configuration
- the specific implementation may be as follows: The terminal determines that the effective time of the updated TDD uplink/downlink configuration is the k1th subframe after the subframe n, and the subframe n is the subframe in which the terminal receives the RRC signaling or the MAC signaling, where k1 is not less than 1. Integer; or,
- the effective time that the terminal sends the signaling by the base station in advance is determined as the effective time of the updated TDD uplink/downlink configuration.
- the value of k1 is pre-agreed by the terminal and the base station, or the base station notifies the terminal of the value of k1 by signaling in advance.
- the signaling used by the base station to transmit the effective time is the signaling or other signaling used to transmit the updated TDD uplink/downlink configuration information.
- step 61 the terminal determines the effective time of the updated TDD uplink/downlink configuration, and the specific implementation may be as follows:
- the terminal determines that the updated TDD uplink/downlink configuration takes effect as the k2th subframe after the subframe n, and the subframe n is the subframe in which the PDCCH signaling is sent by the base station, and k2 is an integer not less than 1, for example, the value is 10. Or,
- the effective time that the terminal sends the signaling by the base station in advance is determined as the effective time of the updated TDD uplink/downlink configuration.
- the value of k2 is pre-agreed by the terminal and the base station, or the base station notifies the terminal of the value of k2 by signaling in advance.
- the signaling used by the base station to transmit the effective time is the signaling or other signaling used to transmit the updated TDD uplink/downlink configuration information.
- Embodiment 1 is a diagrammatic representation of Embodiment 1:
- the TDD UL/DL configuration change notification method 1 is as follows:
- Step 1 The base station determines that the TDD UL/DL configuration needs to be changed
- the base station determines to change the TDD UL/DL configuration according to the amount of uplink and downlink traffic data in the cell and determines the number of the TDD UL/DL configuration after the update.
- Step 2 The base station notifies the UE system information update in the cell and the number of the updated TDD UL/DL configuration; once the base station determines to change the TDD UL/DL configuration of a certain cell, it needs to pass the paging in the BCCH modification period n.
- the message notifies that the terminal system information in the cell is changed and sends the updated system information in the BCCH modification period n+1, and the updated system information carries the updated TDD UL/DL configuration number, the updated TDD.
- the number of the UL/DL configuration can be carried in the MIB, SIB1 or other SIB.
- Step 3 The terminal receives the updated system information.
- the terminal receives the system information update indication sent by the base station in the BCCH modification period n, then the next one
- the BCCH modification period n+1 starts to receive the updated system information and determines the effective time of the new system information.
- the new configuration is valid for connected-mode UEs that are in idle state or do not support dynamic TDD UL/DL configuration changes.
- the specific TDD UL/DL configuration is updated.
- the effective time can be the Nms after the start time of the n+1th BCCH modification period, where the value of N can be as follows:
- N can take the value m (m is greater than Or an integer equal to 1)
- the length of time of the MIB scheduling period If m is 1, then for LTE systems, the value of N is 40ms.
- N can take the value of m (m is an integer greater than or equal to 1) the length of the SIB1 scheduling period. If m is 1 , then for LTE systems, the value of N is 80ms.
- N can take the length of m (m is an integer greater than or equal to 1) Si-window. If m is 1 , then for LTE systems, the value of N is the length of the Si-window, and the length of the Si-window is configured by the base station to the terminal.
- Step 4 The base station determines the effective time of the updated TDD UL/DL configuration
- the updated TDD UL/DL configuration at the base station side is effective at the beginning of the nth BCCH modification period, for supporting dynamic TDD UL/DL configuration changes.
- the effective time determination mode of the updated TDD UL/DL configuration is the same as the UE side determination mode.
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- the TDD UL/DL configuration change notification method 1 is as follows:
- Step 1 The base station determines that the TDD UL/DL configuration needs to be changed
- the base station determines to change the TDD UL/DL configuration according to the amount of uplink and downlink traffic data in the cell and determines the changed TDD.
- the number of the UL/DL configuration is the number of the UL/DL configuration.
- Step 2 The base station notifies the UE system information update in the cell and the number of the updated TDD UL/DL configuration; once the base station determines that the TDD UL/DL configuration of a certain cell needs to be changed, it needs to pass the paging in the BCCH modification period n.
- the message notifies that the terminal system information in the cell is changed and sends the updated system information in the BCCH modification period n+1, and the updated system information carries the updated TDD UL/DL configuration number and the updated TDD.
- the specific time of the UL/DL configuration, these two information can be carried in the MIB, SIB1 or other SIB.
- Step 3 The terminal receives the updated system information.
- the terminal After receiving the system information update indication sent by the base station in the BCCH modification period n, the terminal starts to receive the updated system information and determines the effective time of the updated system information in the next BCCH modification period n+1.
- the new configuration is valid for connected-mode UEs that are in idle state or do not support dynamic TDD UL/DL configuration changes.
- the specific TDD UL/DL configuration is updated. Effective The time is the effective time indicated by the base station in the system information.
- Step 4 The base station determines an updated TDD UL/DL configuration effective time
- the updated TDD UL/DL configuration at the base station side is effective at the beginning of the nth BCCH modification period, for supporting dynamic TDD UL/DL configuration changes.
- the connected state UE, the updated TDD UL/DL configuration effective time determination mode is the same as the UE side determination mode.
- Embodiment 3 is a diagrammatic representation of Embodiment 3
- the TDD UL/DL configuration change method is notified by the method 2, which is as follows:
- Step 1 The base station determines that the TDD UL/DL configuration needs to be changed
- the base station determines to change the TDD UL/DL configuration according to the amount of uplink and downlink traffic data in the cell and determines the number of the updated TDD UL/DL configuration.
- Step 2 The base station notifies the UE system information update in the cell and the number of the updated TDD UL/DL configuration; once the base station determines that the TDD UL/DL configuration of a certain cell needs to be changed, it needs to pass the paging in the BCCH modification period n.
- the message notifies the terminal that supports the dynamic change of the TDD UL/DL configuration in the cell.
- the TDD uplink/downlink configuration of the cell is changed.
- the paging message may also optionally carry the updated TDD UL.
- the effective time of the /DL configuration may be used.
- Step 3 The terminal receives the updated TDD UL/DL configuration
- the connected terminal supporting the dynamic TDD UL/DL configuration After receiving the paging message carrying the TDD UL/DL configuration change indication, the connected terminal supporting the dynamic TDD UL/DL configuration does not need to wait for the next BCCH modification period, and can immediately read and carry the updated TDD UL/DL configuration. Numbered MIB, SIB 1, or other SIB to obtain the number of the updated TDD UL/DL configuration.
- the terminal immediately reads the MIB;
- the terminal needs to immediately read the SIB1 or the scheduling information of the SIB carrying the TDD UL/DL configuration, and then read the corresponding SIB according to the scheduling information.
- the terminal uses the updated TDD according to the effective time indication carried in the paging message.
- Step 4 The base station determines the effective time of the updated TDD UL/DL configuration
- the effective time determination mode of the TDD UL/DL configuration after the base station side update is the same as the UE side determination mode.
- the effective time in the above embodiment is carried in the paging message. Otherwise, it may not be in the paging.
- the effective time is carried in the information, and the effective time of the TDD UL/DL configuration is carried in the MIB or SIB of the number of the TDD UL/DL configuration after the subsequent notification is updated.
- Embodiment 4 is a diagrammatic representation of Embodiment 4:
- the TDD UL/DL configuration change method is notified by the third method, and the TDD UL/DL configuration update period takes the default value, which may be pre-agreed by the base station and the terminal or specified in the protocol, as follows:
- Step 1 The base station determines that the TDD UL/DL configuration needs to be changed
- the base station determines to change the TDD UL/DL configuration according to the amount of uplink and downlink traffic data in the cell and determines the number of the updated TDD UL/DL configuration.
- Step 2 The base station notifies the UE system information update and the updated TDD UL/DL configuration number in the cell; once the base station determines that the TDD UL/DL configuration of a certain cell needs to be changed, the base station is in the nearest TDD.
- the UL/DL configuration change cycle starts within n.
- the number of the updated TDD UL/DL configuration is sent through the MIB.
- Step 3 The terminal receives the updated system information.
- the TDD UL/DL configuration change cycle can be determined in two ways:
- Mode 1 The base station and the terminal pre-arrange or pre-specify the default value in the protocol, for example, the default value is the length of the MIB scheduling period: 40 ms;
- Manner 2 The base station is notified to the terminal by using the MIB or the dedicated signaling, and the dedicated signaling may be RRC/MAC/PDCCH signaling;
- Step 4 The base station determines the effective time of the updated TDD UL/DL configuration
- Embodiment 5 The effective time determination mode of the TDD UL/DL configuration after the base station side update is the same as the UE side determination mode.
- the TDD UL/DL configuration change is notified by the method 4, and the effective time is pre-determined by the base station and the terminal, or a default value is configured in the protocol, as follows:
- the base station may send the RRC signaling to the connected terminal in the cell in the subframe n, and after receiving the RRC signaling, the terminal performs the parsing and obtaining.
- the number of the updated TDD UL/DL configuration starts to use the updated TDD UL/DL configuration at time n+kl.
- both the base station and the terminal need to use the old TDD UL/DL configuration.
- the value of kl is pre-agreed by the base station and the terminal or the default value of k1 is configured in the protocol.
- the TDD UL/DL configuration change is notified by Method 4, and the effective time is notified by the base station through explicit signaling, as follows:
- the base station determines to change the TDD UL/DL configuration according to the data volume of the uplink and downlink services in the cell, and then may send RRC signaling to the connected terminal in the cell in subframe n, and after receiving the RRC signaling, the terminal performs parsing and obtaining the update.
- the number of the subsequent TDD UL/DL configuration then at the time n+kl, the base station and the terminal simultaneously use the updated TDD UL/DL configuration. Prior to n+kl, both the base station and the terminal needed to use the old TDD UL/DL configuration.
- the k1 is notified to the terminal by the base station through explicit signaling, and the explicit signaling may be RRC/MAC/PDCCH signaling, which may be a single signaling, or may be combined with other signaling, or may be merged into TDD UL. /DL configuration notification signaling.
- the TDD UL/DL configuration change is notified by the method 4, and the effective time is pre-determined by the base station and the terminal, or a default value is configured in the protocol, as follows:
- the base station may send the MAC signaling, that is, the MAC CE, to the connected terminal in the cell in the subframe n, after the terminal receives the MAC signaling.
- both the base station and the terminal need to use the old TDD UL/DL configuration.
- the value of kl is pre-agreed by the base station and the terminal or the default value of kl is configured in the protocol. A typical kl value can take 8ms.
- the TDD UL/DL configuration change is notified by Method 4, and the effective time is notified by the base station through explicit signaling, as follows:
- the base station determines to change the TDD UL/DL configuration according to the data volume of the uplink and downlink services in the cell, and then may send the MAC signaling, that is, the MAC CE, to the connected terminal in the cell in the subframe n, after the terminal receives the MAC signaling,
- the number of the updated TDD UL/DL configuration is obtained by parsing, and then at the time n+kl, the base station and the terminal simultaneously use the updated TDD UL/DL configuration. Prior to n+kl, both the base station and the terminal needed to use the old TDD UL/DL configuration.
- the k1 is notified to the terminal by the base station through explicit signaling, and the explicit signaling may be RRC/MAC/PDCCH signaling, which may be a single signaling, or may be combined with other signaling, or may be merged into TDD UL. /DL configuration notification signaling.
- RRC/MAC/PDCCH signaling may be a single signaling, or may be combined with other signaling, or may be merged into TDD UL.
- /DL configuration notification signaling may be configured to 8ms.
- the TDD UL/DL configuration change is notified by the method 4, and the effective time is used in the MAC signaling of the TDD UL/DL configuration update, as follows:
- the subframe n sends the MAC signaling, that is, the MAC CE, to the connected terminal in the cell.
- the terminal parses and obtains the updated TDD UL/DL configuration number and the effective time (including the SFN and the subframe number).
- the SFN and the subframe corresponding to the effective time specified by the MAC signaling the base station and the terminal simultaneously use the updated TDD UL/DL configuration.
- both the base station and the terminal need to use the old TDD UL/DL configuration.
- the effective time can also be notified to the UE by the base station through a separate MAC CE.
- the manner in which the RRC signaling notification is effective is similar to that in the ninth embodiment.
- the difference is that the effective time and the number of the updated TDD UL/DL configuration are notified by RRC signaling.
- the effective time is RRC signaling notification.
- the TDD UL/DL configuration change is notified by the method 5, and the effective time is carried in the PDCCH signaling updated by the TDD UL/DL configuration, as follows:
- the PDCCH signaling may be sent to the connected terminal in the cell in the subframe n, and after receiving the PDCCH signaling, the terminal performs the analysis and obtains the update.
- the number and effective time of the subsequent TDD UL/DL configuration (including SFN and subframe number), and then the TDN and subframe corresponding to the effective time specified by the PDCCH signaling, the base station and the terminal simultaneously use the updated TDD UL/DL configuration.
- both the base station and the terminal need to use the old TDD UL/DL configuration.
- the effective time can also be notified by the base station to the UE through a single PDCCH signaling.
- the manner in which the RRC signaling notification is effective is similar to that in the tenth embodiment, except that the effective time and the updated TDD UL/DL configuration number are notified by RRC signaling.
- the number of the more updated TDD UL/DL configuration may be considered, the RRC signaling notification, the effective time PDCCH signaling notification, or the more updated TDD UL/DL configuration number, PDCCH signaling,
- the effective time is RRC signaling notification.
- an embodiment of the present invention provides a base station, where the base station includes:
- the sending unit 70 is configured to: after updating the TDD uplink/downlink configuration of the cell, send the updated TDD uplink/downlink configuration information to the terminal in the cell;
- a determining unit 71 configured to determine, according to the same effective time determining method as the terminal, an effective time of the updated TDD up/down configuration
- the transmitting unit 72 is configured to start using the updated TDD uplink/downlink configuration for data transmission when the effective time arrives.
- the sending unit 70 is configured to: send the updated TDD uplink/downlink configuration information to the terminal in the cell by using one of the following four methods: Method 1: In a broadcast control channel BCCH modification period, notify the terminal system information in the cell by using a paging message, and send the updated system information in the next BCCH modification period, where the updated system information is Carrying updated information of the TDD uplink/downlink configuration;
- Method 2 In a BCCH modification period, notify a change of the TDD uplink/downlink configuration of the terminal in the cell by using a paging message, and add a new information element IE to the subsequently transmitted system information, where the IE carries the update.
- Information about the TDD uplink/downlink configuration; the IE is carried in the MIB or SIB1 or other SIB;
- Method 3 Send the updated TDD uplink/downlink configuration information through the primary information block MIB during a change period of the TDD uplink/downlink configuration;
- Method 4 The RRC signaling or the medium access control MAC signaling is used to send the updated TDD uplink/downlink configuration information to the terminal in the cell;
- Method 5 The updated TDD uplink/downlink configuration information is sent to the terminal in the cell by using the PDCCH. Further, the determining unit 71 is configured to:
- determining that the updated TDD uplink/downlink configuration takes effect is the Nth millisecond after the start time of the next BCCH modification period;
- the paging message or the updated system information further includes an effective time of the updated TDD uplink/downlink configuration, and determining that the updated TDD uplink/downlink configuration effective time is the paging The effective time carried in the message or the updated system information.
- the value of N is the length of time of the m MIB scheduling periods
- the value of N is the length of time of the m SIB1 scheduling periods
- the value of N is the length of time of the m scheduling information window Si-window;
- N is the length of time of m BCCH tampering periods
- n is an integer not less than one.
- the determining unit 71 is configured to:
- the updated TDD uplink/downlink configuration is carried in the paging message carrying the change notification of the TDD uplink/downlink configuration or the system information carrying the updated TDD uplink/downlink configuration information.
- the system determines the effective time of the updated TDD uplink/downlink configuration as the paging message carrying the change notification of the TDD uplink/downlink configuration or the system information carrying the updated TDD uplink/downlink configuration information.
- the determining unit 71 is configured to:
- determining that the updated TDD uplink/downlink configuration effective time is the start time of the Xth TDD uplink/downlink configuration change period after the TDD uplink/downlink configuration change period, X is an integer not less than 1, and the value of X is pre-agreed by the base station and the terminal or notified by the base station to the terminal.
- the base station further includes:
- a first appointment notification unit 73 configured to pre-arrange the length of the change period of the TDD uplink/downlink configuration with the terminal;
- the length of the change period of the TDD uplink/downlink configuration is notified to the terminal through MIB or dedicated signaling.
- the determining unit 71 is configured to:
- determining that the updated TDD uplink/downlink configuration takes effect is the k1th subframe after the subframe n, and the subframe n is the sub-network transmitting the RRC signaling or the MAC signaling.
- a frame, kl is an integer not less than 1; or
- the effective time of the updated TDD uplink/downlink configuration is sent to the terminal by using the signaling, and the effective time of the updated TDD uplink/downlink configuration is determined to be the effective time sent to the terminal.
- the determining unit 71 is configured to:
- the effective time of the updated TDD uplink/downlink configuration is the k2th subframe after the subframe n, and the subframe n is a subframe in which the base station sends the PDCCH signaling, and k2 is an integer not less than 1.
- the effective time of the TDD uplink/downlink configuration is the effective time sent to the terminal.
- the base station further includes:
- the second appointment notification unit 74 is configured to pre-agreed the value of k1 with the terminal, or notify the terminal of the value of k1 by signaling in advance;
- the value of k2 is pre-agreed with the terminal, or the value of k2 is notified to the terminal by signaling in advance. Further, the determining unit 71 sends the signaling used by the effective time to the terminal, which is signaling or other signaling used to send the updated TDD uplink/downlink configuration information.
- an embodiment of the present invention further provides a terminal, where the terminal includes:
- the receiving unit 80 is configured to receive information about the updated TDD uplink/downlink configuration sent by the base station;
- the determining unit 81 is configured to determine an effective time of the updated TDD up/down configuration according to the same effective time determining method as the base station;
- the transmitting unit 82 is configured to start using the updated TDD uplink/downlink configuration for data transmission when the effective time arrives. Further, the receiving unit 80 is configured to: receive, by using one of the following four methods, information about the updated TDD uplink/downlink configuration sent by the base station:
- Method 1 receiving a system information change notification sent by the base station through the paging message in a broadcast control channel BCCH modification period, starting to receive the updated system information sent by the base station in the next BCCH modification period, and from the updated system information Obtaining information of the updated TDD uplink/downlink configuration;
- Method 2 Receive a change indication of the TDD uplink/downlink configuration sent by the base station by using the paging message in a BCCH modification period, immediately start receiving system information, and obtain updated TDD uplink/downlink configuration information from the system information;
- Method 3 The information of the updated TDD uplink/downlink configuration sent by the base station through the main information block MIB during a change period of the TDD uplink/downlink configuration;
- Method 4 The received base station transmits the updated TDD uplink/downlink configuration information by using the radio resource control RRC signaling or the medium access control MAC signaling.
- Method 5 The information about the updated TDD uplink/downlink configuration sent by the receiving base station through the PDCCH signaling. Further, the determining unit 81 is configured to:
- determining that the updated TDD uplink/downlink configuration takes effect is the Nth millisecond after the start time of the BCCH modification period of starting to receive the updated system information;
- the paging message or the updated system information When the paging message or the updated system information further carries the valid time of the updated TDD uplink/downlink configuration, the paging message or the updated system information is carried in effect.
- the time is determined as the effective time of the updated TDD uplink/downlink configuration.
- the value of N is the length of time of the m MIB scheduling periods
- the value of N is the length of time of the m SIB 1 scheduling period
- the value of N is the length of time of the m scheduling information windows Si-window;
- N is the length of time of m BCCH tampering periods
- n is an integer not less than one.
- the receiving unit 80 is configured to: when using the method 2:
- the terminal If the updated TDD uplink/downlink configuration information is carried in the MIB, the terminal immediately reads the MIB after receiving the paging message, and obtains the updated TDD uplink/downlink configuration from the newly added IE in the MIB. Information;
- the terminal receives the paging message.
- the SIB 1 is read immediately, and the updated TDD uplink/downlink configuration is obtained from the new IE in the SIB 1. If the updated TDD uplink/downlink configuration information is carried in other SIBs, the terminal receives the information. After the paging message, the SIB1 is immediately read to obtain scheduling information of the SIB including the information of the updated TDD uplink/downlink configuration, and the SIB is read according to the scheduling information.
- the determining unit 81 is configured to:
- the terminal when the paging message or the system information carrying the updated TDD uplink/downlink configuration information carries the updated TDD uplink/downlink configuration effective time, the terminal will The effective time carried in the system information of the paging message or the information about the updated TDD uplink/downlink configuration is determined as the effective time of the updated TDD uplink/downlink configuration.
- the determining unit 81 is configured to:
- determining that the updated TDD uplink/downlink configuration effective time is the start time of the Xth TDD uplink/downlink configuration change period after the TDD uplink/downlink configuration change period, X is an integer not less than 1, and the value of X is pre-agreed by the base station and the terminal or notified by the base station to the terminal.
- the receiving unit 80 is configured to:
- the MIB is read at least once during the period of a TDD up/down configuration.
- the terminal further includes:
- the first appointment receiving unit 83 is configured to pre-arrange the length of the change period of the TDD uplink/downlink configuration with the base station; or, the length of the change period of the TDD uplink/downlink configuration that the base station sends in advance through the MIB or the dedicated signaling;
- the start time of the change cycle of the Xth TDD uplink/downlink configuration after the change cycle of the TDD uplink/downlink configuration is determined according to the time length of the change cycle of the TDD uplink/downlink configuration.
- the determining unit 81 is configured to:
- determining that the updated TDD uplink/downlink configuration takes effect is the k1th subframe after the subframe n, and the subframe n is the subframe where the terminal receives the RRC signaling or the MAC signaling.
- a frame, kl is an integer not less than 1; or
- the effective time of transmitting the base station in advance through signaling is determined as the effective time of the updated TDD uplink/downlink configuration.
- the determining unit 81 is configured to:
- the effective time of the updated TDD uplink/downlink configuration is the k2th subframe after the subframe n, and the subframe n is a subframe in which the base station sends the PDCCH signaling, and k2 is an integer not less than 1.
- the effective time of transmitting the base station in advance through signaling is determined as the effective time of the updated TDD uplink/downlink configuration.
- the terminal further includes:
- the second appointment receiving unit 84 is configured to pre-agreed the value of k1 with the base station when the mode 4 is used, or the value of k1 that is received by the base station in advance by signaling;
- the value of k2 is pre-agreed with the base station, or the value of k2 notified by the base station in advance by signaling is received.
- the signaling used by the determining unit 81 to send the effective time is signaling or other signaling used to send the updated TDD uplink/downlink configuration information.
- another base station provided by an embodiment of the present invention includes:
- the first processor 90 is configured to determine, according to the same effective time determining method as the terminal, an effective time of the updated TDD uplink/downlink configuration
- the first transmitter 91 is configured to: after updating the TDD uplink/downlink configuration of the cell, send the updated TDD uplink/downlink configuration information to the terminal in the cell; and start using the effective time when the effective time arrives Data transfer for the updated TDD uplink/downlink configuration.
- the first transmitter 91 is configured to: send the updated TDD uplink/downlink configuration information to the terminal in the cell by using one of the following four methods:
- Method 1 In a broadcast control channel BCCH modification period, notify the terminal system information in the cell by using a paging message, and send the updated system information in the next BCCH modification period, where the updated system information is Carrying updated information of the TDD uplink/downlink configuration;
- Method 2 In a BCCH modification period, notify a change of the TDD uplink/downlink configuration of the terminal in the cell by using a paging message, and add a new information element IE to the subsequently transmitted system information, where the IE carries the update.
- Information about the TDD uplink/downlink configuration; the IE is carried in the MIB or SIB1 or other SIB;
- Method 3 Send the updated TDD uplink/downlink configuration information through the primary information block MIB during a change period of the TDD uplink/downlink configuration;
- Method 4 The RRC signaling or the medium access control MAC signaling is used to send the updated TDD uplink/downlink configuration information to the terminal in the cell;
- Method 5 The updated TDD uplink/downlink configuration information is sent to the terminal in the cell by using the PDCCH. Further, the first processor 90 is configured to:
- determining that the updated TDD uplink/downlink configuration takes effect is the Nth millisecond after the start time of the next BCCH modification period;
- the paging message or the updated system information further includes an effective time of the updated TDD uplink/downlink configuration, and determining that the updated TDD uplink/downlink configuration effective time is the paging Message or after the update The effective time carried in the system information.
- the value of N is the length of time of the m MIB scheduling periods
- the value of N is the length of time of the m SIB1 scheduling periods
- the value of N is the length of time of the m scheduling information window Si-window;
- N is the length of time of m BCCH tampering periods
- n is an integer not less than one.
- the first processor 90 is configured to:
- the updated TDD uplink/downlink configuration is carried in the paging message carrying the change notification of the TDD uplink/downlink configuration or the system information carrying the updated TDD uplink/downlink configuration information.
- the system determines the effective time of the updated TDD uplink/downlink configuration as the paging message carrying the change notification of the TDD uplink/downlink configuration or the system information carrying the updated TDD uplink/downlink configuration information. The effective time carried in.
- the first processor 90 is configured to:
- determining that the updated TDD uplink/downlink configuration effective time is the start time of the Xth TDD uplink/downlink configuration change period after the TDD uplink/downlink configuration change period, X is an integer not less than 1, and the value of X is pre-agreed by the base station and the terminal or notified by the base station to the terminal.
- the first transmitter 91 is further configured to:
- the length of the change period of the TDD uplink/downlink configuration is notified to the terminal through MIB or dedicated signaling.
- the first processor 90 is configured to:
- determining that the updated TDD uplink/downlink configuration takes effect is the k1th subframe after the subframe n, and the subframe n is the sub-network transmitting the RRC signaling or the MAC signaling.
- a frame, kl is an integer not less than 1; or
- the effective time of the updated TDD uplink/downlink configuration is sent to the terminal by using the signaling, and the effective time of the updated TDD uplink/downlink configuration is determined to be the effective time sent to the terminal.
- the first processor 90 is configured to:
- the effective time of the updated TDD uplink/downlink configuration is the k2th subframe after the subframe n, and the subframe n is a subframe in which the base station sends the PDCCH signaling, and k2 is an integer not less than 1.
- the effective time of the TDD uplink/downlink configuration is the effective time sent to the terminal.
- the first transmitter 91 is further configured to:
- the value of k1 is pre-agreed with the terminal, or the value of k1 is notified to the terminal by signaling in advance; when the mode 5 is used, the value of k2 is pre-agreed with the terminal, or the letter is pre-committed. Let the value of k2 be notified to the terminal.
- the signaling used by the first processor 90 to send the validity time to the terminal is signaling or other signaling used to send the updated TDD uplink/downlink configuration information.
- an embodiment of the present invention further provides a terminal, where the terminal includes:
- the receiver 100 is configured to receive information about the updated TDD uplink/downlink configuration sent by the base station;
- the second processor 101 is configured to determine an effective time of the updated TDD uplink/downlink configuration according to the same effective time determining method as the base station;
- the second transmitter 102 is configured to start using the updated TDD uplink/downlink configuration for data transmission when the effective time arrives.
- the receiver 100 is configured to: receive the updated TDD uplink/downlink configuration information sent by the base station by using one of the following four methods:
- Method 1 receiving a system information change notification sent by the base station through the paging message in a broadcast control channel BCCH modification period, starting to receive the updated system information sent by the base station in the next BCCH modification period, and from the updated system information Obtaining information of the updated TDD uplink/downlink configuration;
- Method 2 Receive a change indication of the TDD uplink/downlink configuration sent by the base station by using the paging message in a BCCH modification period, immediately start receiving system information, and obtain updated TDD uplink/downlink configuration information from the system information;
- Method 3 The information of the updated TDD uplink/downlink configuration sent by the base station through the main information block MIB during a change period of the TDD uplink/downlink configuration;
- Method 4 The received base station transmits the updated TDD uplink/downlink configuration information by using the radio resource control RRC signaling or the medium access control MAC signaling;
- Method 5 The information about the updated TDD uplink/downlink configuration sent by the receiving base station through the PDCCH signaling. Further, the second processor 101 is configured to:
- determining that the updated TDD uplink/downlink configuration takes effect is the Nth millisecond after the start time of the BCCH modification period of starting to receive the updated system information;
- the effective time carried in the paging message or the updated system information is determined as the effective time of the updated TDD uplink/downlink configuration.
- the value of N is the length of time of the m MIB scheduling periods
- the value of N is the length of time of the m SIB 1 scheduling period
- the value of N is the length of time of the m scheduling information windows Si-window;
- N is the length of time of m BCCH tampering periods
- n is an integer not less than one.
- the receiver 100 is configured to: when using the method 2:
- the terminal If the updated TDD uplink/downlink configuration information is carried in the MIB, the terminal immediately reads the MIB after receiving the paging message, and obtains the updated TDD uplink/downlink configuration from the newly added IE in the MIB. Information;
- the terminal If the information of the updated TDD uplink/downlink configuration is carried in the SIB1, the terminal immediately reads the SIB 1 after receiving the paging message, and obtains the updated TDD from the newly added IE in the SIB 1. Downstream configuration;
- the terminal immediately reads the SIB1 to obtain the SIB scheduling information including the updated TDD uplink/downlink configuration information after receiving the paging message.
- the SIB is read according to the scheduling information.
- the second processor 101 is configured to:
- the terminal when the paging message or the system information carrying the updated TDD uplink/downlink configuration information carries the updated TDD uplink/downlink configuration effective time, the terminal will The effective time carried in the system information of the paging message or the information about the updated TDD uplink/downlink configuration is determined as the effective time of the updated TDD uplink/downlink configuration.
- the second processor 101 is configured to:
- determining that the updated TDD uplink/downlink configuration effective time is the start time of the Xth TDD uplink/downlink configuration change period after the TDD uplink/downlink configuration change period, X is an integer not less than 1, and the value of X is pre-agreed by the base station and the terminal or notified by the base station to the terminal.
- the receiver 100 is configured to:
- the MIB is read at least once during the period of a TDD up/down configuration.
- receiver 100 is further configured to:
- the receiving base station passes in advance The length of the change period of the TDD uplink/downlink configuration sent by the MIB or dedicated signaling;
- the start time of the change cycle of the Xth TDD uplink/downlink configuration after the change period of the TDD uplink/downlink configuration is determined according to the length of the change period of the TDD uplink/downlink configuration.
- the second processor 101 is configured to:
- determining that the updated TDD uplink/downlink configuration takes effect is the k1th subframe after the subframe n, and the subframe n is the subframe where the terminal receives the RRC signaling or the MAC signaling.
- a frame, kl is an integer not less than 1; or
- the effective time of transmitting the base station in advance through signaling is determined as the effective time of the updated TDD uplink/downlink configuration.
- the second processor 101 is configured to:
- the effective time of the updated TDD uplink/downlink configuration is the k2th subframe after the subframe n, and the subframe n is a subframe in which the base station sends the PDCCH signaling, and k2 is an integer not less than 1.
- the effective time of transmitting the base station in advance through signaling is determined as the effective time of the updated TDD uplink/downlink configuration.
- receiver 100 is further configured to:
- the value of k1 is pre-agreed with the base station, or the value of k1 that is received by the base station in advance by signaling; when the mode 5 is used, the value of k2 is pre-agreed with the base station, or the receiving base station is pre- The value of k2 notified by signaling.
- the second processor 101 is configured to:
- the signaling used to send the effective time is signaling or other signaling used to send the updated TDD uplink/downlink configuration information.
- the present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each process and/or block of the flowchart illustrations and/or FIG.
- the computer program instructions can be provided to a first processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for execution by a first processor of a computer or other programmable data processing device
- the instructions produce means for implementing the functions specified in one or more flows of the flowchart or in a block or blocks of the flowchart.
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Description
时分双工上 /下行配置的更新方法和设备
本申请要求在 2012年 9月 25 日提交中国专利局、 申请号为 201210362174.3、 发明名 称为"时分双工上 /下行配置的更新方法和设备 "的中国专利申请的优先权,其全部内容通过 引用结合在本申请中。
技术领域
本发明涉及无线通信领域, 尤其涉及一种时分双工上 /下行配置的更新方法和设备。 背景技术
LTE ( Long Term Evolution, 长期演进) TDD ( Time division duplex, 时分双工) 系统 如图 1所示, 一个无线帧长度为 10ms, 包含特殊子帧和常规子帧两类共 10个子帧, 每个 子帧为 lms。 特殊子帧分为 3个时隙: DwPTS ( Downlink Pilot Slot, 下行导频时隙)、 GP (Guard Period, 保护间隔)和 UpPTS ( Uplink Pilot Slot, 上行导频时隙)。 常规子帧又分为 上行子帧和下行子帧, 分别用于传输上行 /下行控制信令和业务数据等。
LTE TDD系统一共定义了 7种 TDD UL/DL (上下行) 配置, 如下表 1所示。 这 7种 TDD UL/DL配置共同的特点如下: 一个无线帧中, 可以配置两个特殊子帧 (子帧 #1和子帧 #6), 也可以仅配置一个特殊子帧 (子帧 #1); 子帧 #0和子帧 #5以及特殊子帧中的 DwPTS总 是用作下行传输; 子帧 #2以及特殊子帧中的 UpPTS总是用于上行传输; 其他子帧可以依 据需要配置为用作上行传输或者下行传输。
表 1
LTE 系统信息分为 MIB ( Master Information Block, 主信息块) 和 SIB ( System Information Block, 系统信息块), MIB仅包含有限的信息, 比如最重要最频繁传输的参数。 MIB调度周期为 40ms, 在满足 SFN ( System Frame Number, 系统帧号 ) mod 4=0的无线 帧的子帧 #0进行调度传输, 在 40ms内其它无线帧的子帧 #0进行重复发送。
SIB目前包括 SIB1-SIB15 , 按照目前协议 TDD UL/DL配置信息包含在 SIB1中, 因此 这里仅介绍 SIB1 , SIB1的调度周期为 80ms,在满足 SFN mod 8=0的无线帧的子帧 #5进行 调度传输, 在 80ms内的其它无线帧的子帧 #5进行重传。
系统信息更新过程引入了 BCCH ( Broadcast Control Channel, 广播控制信道)修改周 期的概念, BCCH修改周期最小值为 640ms, 如图 2所示。 一旦系统信息发生变更, 那么 网络首先需要在 BCCH修改周期 n内通过寻呼通知该小区内的终端系统信息发生了变更, 然后在 BCCH修改周期 n+1 , 网络开始发送新的系统信息, 终端开始接收, 一旦终端接收 到新的系统信息, 新的系统信息立即生效。
这种系统信息变更方式下终端和网络侧的系统信息可能在一段时间不一致, 比如在 BCCH修改周期 n+1开始时网络就开始使用新的系统信息, 而终端只有接收到 MIB和 SIB 后才开始使用新的系统信息,这样 BCCH修改周期最初一段时间内终端和网络对发生更新 的系统信息理解就不一致了, 如图 2所示。
LTE版本 8 ( R8 ) 中 TDD UL/DL配置变更也是釆用上述系统信息更新过程实现的,
TDD UL/DL配置信息包含在 SIB1 中, 当 TDD UL/DL配置变更时, 网络首先会在当前 BCCH变更周期内通过寻呼通知该小区内的终端, 然后终端在下一个 BCCH变更周期内通 过读取 SIB1获取变更后的 TDD UL/DL配置信息。 如图 2所示, 如果发生 TDD UL/DL配 置变更,在一段时间内基站和终端对当前 TDD UL/DL配置的理解可能不一致。不过 LTE R8 一般认为 TDD UL/DL配置基本不会变更,即使变更也是若千天变更一次,因此 TDD UL/DL 配置变更虽然会导致基站和终端理解的不一致, 但由于变更频率相当低, 因此其影响可以 忽略不计, 标准中并不规定。
由于 LTE R8的 TDD UL/DL配置方式是静态或者半静态的,不能根据业务特征灵活的 调整 TDD UL/DL 配置, 因此不利于提升系统资源利用率、 更好的保证业务传输的 QoS
( Quality of Service, 业务盾量)。 基于此, LTE TDD UL/DL千扰管理以及业务自适应增强
( Enhancement to LTE TDD for DL-UL Interference Management and Traffic Adapation, LTE TDD UL/DL elMTA )项目引入了较为动态的 TDD UL/DL配置变更机制, 将 TDD UL/DL 配置变更频率由若千天缩短为若千 ms。 目前 LTE TDD elMTA项目中引入的 TDD UL/DL 配置变更通知方法主要有如下几种:
方法 1 : 广播通知;
进一步又可以细分为如下二种:
方法 1.1 : 重用 LTE R8的系统信息更新过程, 通过 SIB1或者 MIB或者其它 SIB通知 终端更新后的 TDD UL/DL配置信息;
方法 1.2: 重用 LTE R10的 ETWS ( Earthquake and Tsunami Warning System, 地震和海 啸预警系统)通知过程, 即首先通过寻呼通知 TDD UL/DL配置发生变更, 然后终端通过 读取系统信息中新增的 TDD UL/DL配置指示来获取更新后的 TDD UL/DL配置信息。
方法 2: RRC ( Radio Resource Control, 无线资源控制)信令, 即通过 RRC信令通知 终端变更后的 TDD UL/DL配置信息;
方法 3: MAC ( Medium Access Control,媒体接入控制 M言令,即通过 MAC CE( Control Element, 控制单元)通知终端变更后的 TDD UL/DL配置信息;
方法 4: PDCCH ( Physical Downlink Control Channel, 物理下行控制信道), 即通过 PDCCH通知终端变更后的 TDD UL/DL配置信息。
上述各种方式下, 支持的 TDD UL/DL最小重配间隔如下表 2所示:
表 2
LTE TDD UL/DL elMTA项目引入的 TDD UL/DL配置变更通知方式都可能存在基站 和终端对 TDD UL/DL配置理解不一致的问题,这将影响调度以及 HARQ( Hybrid Automatic Repeat reQuest, 混合自动重传请求 )机制。
下面以方法 1.1和方法 2为例进行说明基站和终端为什么会对 TDD UL/DL配置理解 不一致, 如下:
方法 1.1中终端在 BCCH修改周期 n中接收到寻呼消息,在 BCCH修改周期 n+1中读 取 SIB1获得更新后的 TDD UL/DL配置信息后, 更新后的 TDD UL/DL配置信息对终端立 即生效, 但^ &站无法确知终端何时正确解析出 SIB1 , 所以在 BCCH变更周期 n+1 内可 能有一段时间基站和终端对 TDD UL/DL配置的理解是不一致的。 如图 3所示。
同理, 方法 2中终端在接收到 RRC信令并成功完成解析后, 可以获得更新后的 TDD UL/DL配置信息并生效, 但是基站在接收到 RRC重配完成消息之前是不知道终端何时正 确解析出 RRC消息并应用的, 因此这段时间内基站和终端对 TDD UL/DL配置的理解可能 存在不一致, 如图 4所示。 发明内容
本发明实施例提供一种时分双工上 /下行配置的更新方法和设备,用于避免基站和终端 对 TDD上 /下行配置的理解不一致的问题, 以保证系统传输性能。
一种时分双工 TDD上 /下行配置的更新方法, 该方法包括:
基站在更新小区的 TDD上 /下行配置的后, 将更新后的 TDD上 /下行配置的信息发送 给所述小区内的终端;
基站按照与终端相同的生效时间确定方法确定所述更新后的 TDD上 /下行配置的生效 时间, 并在该生效时间到达时开始使用所述更新后的 TDD上 /下行配置的进行数据传输。
一种时分双工 TDD上 /下行配置的更新方法, 该方法包括:
终端接收基站发送的更新后的 TDD上 /下行配置的信息;
终端按照与基站相同的生效时间确定方法确定所述更新后的 TDD上 /下行配置的生效 时间, 并在该生效时间到达时开始使用所述更新后的 TDD上 /下行配置的进行数据传输。
一种基站, 该基站包括:
发送单元, 用于在更新小区的 TDD上 /下行配置的后, 将更新后的 TDD上 /下行配置 的信息发送给所述小区内的终端;
确定单元, 用于按照与终端相同的生效时间确定方法确定所述更新后的 TDD上 /下行 配置的生效时间;
传输单元, 用于在该生效时间到达时开始使用所述更新后的 TDD上 /下行配置的进行 数据传输。
一种终端, 该终端包括:
接收单元, 用于接收基站发送的更新后的 TDD上 /下行配置的信息;
确定单元, 用于终端按照与基站相同的生效时间确定方法确定所述更新后的 TDD上 / 下行配置的生效时间;
传输单元, 用于在该生效时间到达时开始使用所述更新后的 TDD上 /下行配置的进行 数据传输。
本发明实施例提供的方案中, 基站在更新小区的 TDD上 /下行配置的后, 将更新后的 TDD 上 /下行配置的信息发送给该小区内的终端; 基站按照与终端相同的生效时间确定方 法确定更新后的 TDD上 /下行配置的生效时间, 并在该生效时间到达时开始使用更新后的 TDD上 /下行配置的进行数据传输; 终端接收基站发送的更新后的 TDD上 /下行配置的信 息, 按照与基站相同的生效时间确定方法确定更新后的 TDD上 /下行配置的生效时间, 并 在该生效时间到达时开始使用更新后的 TDD上 /下行配置的进行数据传输。 可见, 本方法 中基站和终端按照相同的生效时间确定方法确定更新后的 TDD上 /下行配置的生效时间, 并在该生效时间到达时才开始使用更新后的 TDD上 /下行配置的进行数据传输, 在该生效 时间到达前一直使用更新前的 TDD上 /下行配置的进行数据传输, 从而使得基站和终端始
终使用相同的 TDD上 /下行配置的, 避免了基站和终端对 TDD上 /下行配置的理解不一致 的问题, 进而避免了由于基站和终端对 TDD 上 /下行配置的理解不一致造成调度以及 HARQ机制受到影响的问题, 保证了系统的传输性能。 附图说明
图 1为背景技术中的 TD-LTE系统帧结构示意图;
图 2为背景技术中的 LTE系统系统信息更新示意图;
图 3为背景技术中方法 1.1下基站和终端对 TDD UL/DL配置理解不一致的示意图; 图 4为背景技术中方法 2下基站和终端对 TDD UL/DL配置理解不一致的示意图; 图 5为本发明实施例提供的方法流程示意图;
图 6为本发明实施例提供的另一方法流程示意图;
图 7为本发明实施例提供的基站结构示意图;
图 8为本发明实施例提供的终端结构示意图;
图 9为本发明实施例提供的另一种基站结构示意图;
图 10为本发明实施例提供的另一种终端结构示意图。 具体实施方式
为了避免基站和终端对 TDD上 /下行配置的理解不一致的问题,以保证系统传输性能, 本发明实施例提供一种 TDD上 /下行配置的更新方法。
参见图 5 , 本发明实施例针对网络侧提供的 TDD上 /下行配置的更新方法, 包括以下 步骤:
步骤 50: 基站在更新小区的 TDD上 /下行配置的后, 将更新后的 TDD上 /下行配置的 信息发送给该小区内的终端;
步骤 51 : 基站确定该更新后的 TDD上 /下行配置的生效时间, 并在该生效时间到达时 开始使用该更新后的 TDD上 /下行配置的进行数据传输。
具体的,步骤 50中, 基站将更新后的 TDD上 /下行配置的信息发送给该小区内的终端, 具体可以釆用如下四种方法中的一种:
方法一: 基站在一个 BCCH修改周期内 , 通过寻呼消息通知该小区内的终端系统信息 发生变更, 并在下一个 BCCH修改周期内发送更新后的系统信息, 该更新后的系统信息中 携带更新后的 TDD上 /下行配置的信息;
方法二: 基站在一个 BCCH修改周期内, 通过寻呼消息通知该小区内的终端 TDD上 /
下行配置的发生变更, 并在后续发送的系统信息中增加新的信息单元(IE ), 该 IE中携带 更新后的 TDD上 /下行配置的信息; 该 IE携带在 MIB或者 SIB1或者其它 SIB中;
方法三: 基站在一个 TDD上 /下行配置的变更周期内通过 MIB发送更新后的 TDD上 / 下行配置的信息;
方法四: 基站通过 RRC信令或 MAC信令, 将更新后的 TDD上 /下行配置的信息发送 给该小区内的终端;
方法五:基站通过 PDCCH,将更新后的 TDD上 /下行配置的信息发送给小区内的终端。 在釆用方法一时, 步骤 51中, 基站确定更新后的 TDD上 /下行配置的生效时间, 具体 实现可以如下:
基站确定该更新后的 TDD上 /下行配置的生效时间为下一个 BCCH修改周期的起始时 间点后的第 N毫秒; 或者,
基站在该寻呼消息或该更新后的系统信息中还携带该更新后的 TDD上 /下行配置的生 效时间, 基站确定该更新后的 TDD上 /下行配置的生效时间为该寻呼消息或该更新后的系 统信息中携带的生效时间。 该寻呼消息或该更新后的系统信息中携带的生效时间可以为绝 对时间, 例如某个无线帧的某个子帧。
具体的,在更新后的 TDD上 /下行配置的信息携带在 MIB中时, N的取值为 m个 MIB 调度周期的时间长度; 或者,
在更新后的 TDD上 /下行配置的信息携带在 SIB1中时, N的取值为 m个 SIB1调度周 期的时间长度; 或者,
在更新后的 TDD上 /下行配置的信息携带在其它 SIB中时, N的取值为 m个调度信息 窗 (Si-window ) 的时间长度; 或者,
N的取值为 m个 BCCH 爹改周期的时间长度;
其中, m为不小于 1的整数, 基站与终端可以预先约定 m的取值, 或协议规定 m的 取值, 或由基站通过信令 (比如 RRC信令或 MAC信令或 PDCCH信令)将 m的取值通知 给终端。
在釆用方法二时, 步骤 51中, 基站确定该更新后的 TDD上 /下行配置的生效时间, 具 体实现可以如下:
基站在携带 TDD上 /下行配置的变更通知的寻呼消息或携带更新后的 TDD上 /下行配 置的信息的系统信息中, 还携带更新后的 TDD上 /下行配置的生效时间, 基站确定更新后 的 TDD上 /下行配置的生效时间为携带 TDD上 /下行配置的变更通知的寻呼消息或携带更 新后的 TDD上 /下行配置的信息的系统信息中携带的生效时间。 该寻呼消息或该系统信息
中携带的生效时间可以为绝对时间, 例如某个无线帧的某个子帧。
在釆用方法三时, 步骤 51中, 基站确定该更新后的 TDD上 /下行配置的生效时间, 具 体实现可以如下:
基站确定该更新后的 TDD上 /下行配置的生效时间为该 TDD上 /下行配置的变更周期 后的第 X个 TDD上 /下行配置的变更周期的起始时刻, X为不小于 1的整数。 基站与终端 可以预先约定 X的取值,或协议规定 X的取值,或由基站通过信令将 X的取值通知给终端。
进一步的,基站可以与终端预先约定 TDD上 /下行配置的变更周期的时间长度; 或者, 基站预先通过 MIB或专用信令将 TDD上 /下行配置的变更周期的时间长度通知给终端。专 用信令可以是 RRC信令或 MAC信令或 PDCCH信令等。
在釆用方法四时, 步骤 51中, 基站确定该更新后的 TDD上 /下行配置的生效时间, 具 体实现可以如下:
基站确定该更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 kl个子帧, 子帧 n 为基站发送该 RRC信令或 MAC信令的子帧, kl为不小于 1的整数; 或者,
基站通过信令(比如 RRC信令或 MAC信令或 PDCCH信令)将该更新后的 TDD上 / 下行配置的生效时间发送给终端, 基站确定该更新后的 TDD上 /下行配置的生效时间为发 送给终端的生效时间。 基站发送给终端的生效时间可以为绝对时间, 例如某个无线帧的某 个子帧。
这里, kl 的取值由基站与终端预先约定, 或由协议规定, 或由基站通过信令(比如 RRC信令或 MAC信令或 PDCCH信令)将 kl的取值通知给终端。
在釆用方法五时, 步骤 51中, 基站确定该更新后的 TDD上 /下行配置的生效时间, 具 体实现可以如下:
基站确定更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 k2个子帧,子帧 n为 基站发送 PDCCH信令的子帧, k2为不小于 1的整数, 比如取值为 10; 或者,
基站通过信令(比如 RRC信令或者 MAC信令或者 PDCCH信令)将该更新后的 TDD 上 /下行配置的生效时间发送给终端, 基站确定该更新后的 TDD上 /下行配置的生效时间为 发送给终端的生效时间。 基站发送给终端的生效时间可以为绝对时间, 例如某个无线帧的 某个子帧。 基站向终端发送生效时间所使用的信令, 可以是发送该更新后的 TDD上 /下行 配置的信息所使用的信令或其他信令。比如,基站通过 RRC信令向终端发送更新后的 TDD 上 /下行配置的信息和更新后的 TDD上 /下行配置的生效时间, 或者, 基站通过 RRC信令 向终端发送更新后的 TDD上 /下行配置的信息,通过 MAC信令向终端发送该更新后的 TDD 上 /下行配置的生效时间。
这里, k2的取值由终端与基站预先约定, 或由基站预先通过信令将 k2的取值通知给 终端。
参见图 6, 本发明实施例提供的针对终端侧的 TDD上 /下行配置的更新方法, 包括以 下步骤:
步骤 60: 终端接收基站发送的更新后的 TDD上 /下行配置的信息;
步骤 61 : 终端确定该更新后的 TDD上 /下行配置的生效时间, 并在该生效时间到达时 开始使用该更新后的 TDD上 /下行配置的进行数据传输。
具体的, 步骤 60中, 终端接收基站发送的更新后的 TDD上 /下行配置的信息, 具体可 以釆用如下四种方法中的一种:
方法一: 终端在一个 BCCH修改周期内接收到基站通过寻呼消息发送的系统信息变更 通知, 在下一个 BCCH修改周期内开始接收基站发送的更新后的系统信息, 并从更新后的 系统信息中获取更新后的 TDD上 /下行配置的信息;
方法二: 终端在一个 BCCH修改周期内接收到基站通过寻呼消息发送的 TDD上 /下行 配置的变更指示, 立刻开始接收系统信息, 从该系统信息中获取更新后的 TDD上 /下行配 置的信息;
方法三: 终端接收基站在一个 TDD上 /下行配置的变更周期内、 通过 MIB发送的更新 后的 TDD上 /下行配置的信息;
方法四: 终端接收基站通过 RRC信令或 MAC信令, 发送的更新后的 TDD上 /下行配 置的信息;
方法五: 终端接收基站通过 PDCCH信令, 发送的更新后的 TDD上 /下行配置的信息。 在釆用方法一时, 步骤 61中, 终端确定该更新后的 TDD上 /下行配置的生效时间, 具 体实现可以如下:
终端确定该更新后的 TDD 上 /下行配置的生效时间为开始接收更新后的系统信息的 BCCH修改周期的起始时间点后的第 N毫秒; 或者,
在该寻呼消息或该更新后的系统信息中还携带该更新后的 TDD上 /下行配置的生效时 间时,终端将该寻呼消息或该更新后的系统信息中携带的生效时间确定为该更新后的 TDD 上 /下行配置的生效时间。
具体的, 在更新后的 TDD上 /下行配置的信息携带在主信息块 MIB中时, N的取值为 m个 MIB调度周期的时间长度; 或者,
在更新后的 TDD上 /下行配置的信息携带在系统信息块 SIB1时,Ν的取值为 m个 SIB1 调度周期的时间长度; 或者,
在更新后的 TDD上 /下行配置的信息携带在其它 SIB时, N的取值为 m个调度信息窗
Si-window的时间长度; 或者,
N的取值为 m个 BCCH 爹改周期的时间长度;
其中, m为不小于 1的整数。
在釆用方法二时, 终端立刻开始接收系统信息, 从该系统信息中获取更新后的 TDD 上 /下行配置的信息, 具体实现可以如下:
如果更新后的 TDD上 /下行配置的信息携带在 MIB中, 终端在接收到寻呼消息后, 立 即读取 MIB, 从该 MIB中的新增 IE中获取更新后的 TDD上 /下行配置的信息;
如果更新后的 TDD上 /下行配置的信息携带在 SIB1中, 终端在接收到寻呼消息后, 立 即读取 SIB 1 , 从该 SIB 1中的新增 IE中获取更新后的 TDD上 /下行配置的;
如果更新后的 TDD上 /下行配置的信息携带在其它 SIB中,终端在接收到寻呼消息后, 立即读取 SIB1以获取包含该更新后的 TDD上 /下行配置的信息的 SIB的调度信息,按照该 调度信息读取所述 SIB。
在釆用方法二时, 步骤 61中, 终端确定该更新后的 TDD上 /下行配置的生效时间, 具 体实现可以如下:
在该寻呼消息或携带更新后的 TDD上 /下行配置的信息的系统信息中, 还携带所述更 新后的 TDD上 /下行配置的生效时间时,终端将所述寻呼消息或所述携带更新后的 TDD上 /下行配置的信息的系统信息中携带的生效时间, 确定为所述更新后的 TDD上 /下行配置的 生效时间。
在釆用方法三时, 步骤 61中, 终端确定该更新后的 TDD上 /下行配置的生效时间, 具 体实现可以如下:
终端确定该更新后的 TDD上 /下行配置的生效时间为该 TDD上 /下行配置的变更周期 后的第 X个 TDD上 /下行配置的变更周期的起始时刻, X为不小于 1的整数, X的取值由基 站和终端预先约定或者基站通知给终端。
终端在一个 TDD上 /下行配置的周期内至少读取一次 MIB。
进一步的, 终端可以与基站预先约定 TDD上 /下行配置的变更周期的时间长度; 或者, 终端接收基站预先通过 MIB或专用信令发送的 TDD上 /下行配置的变更周期的时间长度; 进而终端可以根据 TDD上 /下行配置的变更周期的时间长度确定该 TDD上 /下行配置 的变更周期后的第 X个 TDD上 /下行配置的变更周期的起始时刻。
在釆用方法四时, 步骤 61中, 终端确定该更新后的 TDD上 /下行配置的生效时间, 具 体实现可以如下:
终端确定该更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 kl个子帧, 子帧 n 为终端接收该 RRC信令或 MAC信令所在的子帧, kl为不小于 1的整数; 或者,
终端将基站预先通过信令发送的生效时间, 确定为该更新后的 TDD上 /下行配置的生 效时间。
这里, kl的取值由终端与基站预先约定, 或由基站预先通过信令将 kl的取值通知给 终端。
基站发送该生效时间所使用的信令, 是发送该更新后的 TDD上 /下行配置的信息所使 用的信令或其他信令。
在釆用方法五时, 步骤 61中, 终端确定该更新后的 TDD上 /下行配置的生效时间, 具 体实现可以如下:
终端确定更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 k2个子帧,子帧 n为 基站发送 PDCCH信令的子帧, k2为不小于 1的整数, 比如取值为 10; 或者,
终端将基站预先通过信令发送的生效时间, 确定为所述更新后的 TDD上 /下行配置的 生效时间。
这里, k2的取值由终端与基站预先约定, 或由基站预先通过信令将 k2的取值通知给 终端。
基站发送该生效时间所使用的信令, 是发送该更新后的 TDD上 /下行配置的信息所使 用的信令或其他信令。
下面结合具体实施例对本发明进行说明:
实施例一:
本步骤中, TDD UL/DL配置变更通知釆用方法一, 具体如下:
步骤 1 : 基站确定 TDD UL/DL配置需要变更;
基站根据小区内的上下行业务数据量决定变更 TDD UL/DL 配置并确定变更新后的 TDD UL/DL配置的编号。
步骤 2: 基站通知小区内的 UE系统信息更新以及更新后的 TDD UL/DL配置的编号; 一旦基站确定要变更某个小区的 TDD UL/DL配置, 那么需要在 BCCH修改周期 n内 通过寻呼消息通知该小区内的终端系统信息发生变更并在 BCCH修改周期 n+1内发送更新 后的系统信息, 更新后的系统信息中携带更新后的 TDD UL/DL配置的编号, 该更新后的 TDD UL/DL配置的编号可以携带在 MIB、 SIB1或者其它 SIB中。
步骤 3: 终端接收到更新后的系统信息;
终端在 BCCH修改周期 n 内接收到基站发送的系统信息更新指示, 那么在下一个
BCCH修改周期 n+1内开始接收更新后的系统信息并确定新系统信息的生效时间。 对于处 于空闲态或者不支持动态 TDD UL/DL配置变更的连接态 UE,新配置接收到即生效; 对于 支持动态 TDD UL/DL配置变更的连接态 UE, 更新后的 TDD UL/DL配置的具体生效时间 可以为第 n+1个 BCCH修改周期的起始时间点后面的第 Nms, 其中 N的取值可以如下: 在更新后的系统信息为 MIB时, N可以取值为 m ( m为大于或等于 1的整数)个 MIB 调度周期的时间长度。 如果 m取 1 , 那么对于 LTE系统, N的取值为 40ms。
在更新后的系统信息为 SIB1时, N可以取值为 m ( m为大于或等于 1的整数)个 SIB1 调度周期的时间长度。 如果 m取 1 , 那么对于 LTE系统, N的取值为 80ms。
在更新后的系统信息为其它 SIB时, N可以取值为 m ( m为大于或等于 1的整数) 个 Si-window的时间长度。 如果 m取 1 , 那么对于 LTE系统, N的取值为 Si-window的时 间长度, Si-window的时间长度由基站配置给终端。
步骤 4: 基站确定更新后的 TDD UL/DL配置的生效时间;
对于处于空闲态或者不支持动态 TDD UL/DL配置变更的连接态 UE,在基站侧更新后 的 TDD UL/DL配置在第 n个 BCCH修改周期开始即生效, 对于支持动态 TDD UL/DL配 置变更的连接态 UE, 更新后的 TDD UL/DL配置的生效时间确定方式和 UE侧确定方式相 同。
实施例二:
本实施例中, TDD UL/DL配置变更通知釆用方法一, 具体如下:
步骤 1 : 基站确定 TDD UL/DL配置需要变更;
基站根据小区内的上下行业务数据量决定变更 TDD UL/DL配置并确定变更后的 TDD
UL/DL配置的编号。
步骤 2: 基站通知小区内的 UE系统信息更新以及更新后的 TDD UL/DL配置的编号; 一旦基站确定需要变更某个小区的 TDD UL/DL配置, 那么需要在 BCCH修改周期 n 内通过寻呼消息通知该小区内的终端系统信息发生变更并在 BCCH修改周期 n+1内发送更 新后的系统信息, 更新后的系统信息中携带更新后的 TDD UL/DL配置的编号和该更新后 的 TDD UL/DL配置的具体生效时间,这两个信息可以携带在 MIB、 SIB1或者其它 SIB中。
步骤 3: 终端接收到更新后的系统信息;
终端在 BCCH修改周期 n 内接收到基站发送的系统信息更新指示, 那么在下一个 BCCH修改周期 n+1内开始接收更新后的系统信息并确定更新后的系统信息的生效时间。 对于处于空闲态或者不支持动态 TDD UL/DL配置变更的连接态 UE,新配置接收到即生效; 对于支持动态 TDD UL/DL配置变更的连接态 UE, 更新后的 TDD UL/DL配置的具体生效
时间为基站在系统信息中指示的生效时间。
步骤 4: 基站确定更新后的 TDD UL/DL配置生效时间;
对于处于空闲态或者不支持动态 TDD UL/DL配置变更的连接态 UE,在基站侧更新后 的 TDD UL/DL配置在第 n个 BCCH修改周期开始即生效, 对于支持动态 TDD UL/DL配 置变更的连接态 UE,更新后的 TDD UL/DL配置生效时间确定方式和 UE侧确定方式相同。
实施例三:
本实施例中, TDD UL/DL配置变更釆用方法二通知, 具体如下:
步骤 1 : 基站确定 TDD UL/DL配置需要变更;
基站根据小区内的上下行业务数据量决定变更 TDD UL/DL配置并确定更新后的 TDD UL/DL配置的编号。
步骤 2: 基站通知小区内的 UE系统信息更新以及更新后的 TDD UL/DL配置的编号; 一旦基站确定需要变更某个小区的 TDD UL/DL配置, 那么需要在 BCCH修改周期 n 内通过寻呼消息通知小区内支持 TDD UL/DL配置动态变更的终端该小区的 TDD上 /下行 配置的发生了变更, 寻呼消息中除了携带 TDD UL/DL配置变更指示, 还可以选择携带更 新后的 TDD UL/DL配置的生效时间。
步骤 3: 终端接收到更新后的 TDD UL/DL配置;
支持动态 TDD UL/DL配置的连接态终端接收到携带 TDD UL/DL配置变更指示的寻 呼消息后,不需要等到下一个 BCCH修改周期,可以立即读取携带有更新后的 TDD UL/DL 配置的编号的 MIB、 SIB 1或者其它 SIB , 以获取更新后的 TDD UL/DL配置的编号。
- 如果在 MIB中通过新增 IE指示更新后的 TDD UL/DL配置, 那么终端立即 读取 MIB即可;
- 如果在 SIB2中通过新增 IE指示更新后的 TDD UL/DL配置, 那么终端立即 读取 SIB1即可;
- 如果在其它 SIB中通过新增 IE指示变更后的 TDD UL/DL配置, 那么终端 需要立即读取 SIB1或者携带 TDD UL/DL配置的 SIB的调度信息, 再按照 调度信息读取相应 SIB。
然后终端根据寻呼消息中携带的生效时间指示, 使用更新后的 TDD
UL/DL配置。
步骤 4: 基站确定更新后的 TDD UL/DL配置的生效时间;
在基站侧更新后的 TDD UL/DL配置的生效时间确定方式和 UE侧确定方式相同。 说明: 上述实施例中生效时间是携带在寻呼消息中的, 除此之外, 也可以不在寻呼消
息中携带生效时间, 而在后续通知更新后的 TDD UL/DL配置的编号的 MIB或者 SIB中携 带该 TDD UL/DL配置的生效时间。
实施例四:
本实施例中, TDD UL/DL配置变更釆用方法三通知, TDD UL/DL配置更新周期取默 认值, 可以是基站和终端预先约定或者在协议中规定默认值, 具体如下:
步骤 1 : 基站确定 TDD UL/DL配置需要变更;
基站根据小区内的上下行业务数据量决定变更 TDD UL/DL配置并确定更新后的 TDD UL/DL配置的编号。
步骤 2: 基站通知小区内 UE系统信息更新以及更新后的 TDD UL/DL配置的编号; 一旦基站确定需要变更某个小区的 TDD UL/DL 配置, 那么基站在最近的一个 TDD
UL/DL配置变更周期 n内开始通过 MIB发送更新后的 TDD UL/DL配置的编号。
步骤 3: 终端接收到更新后的系统信息;
支持动态 TDD UL/DL配置的连接态终端在每个 TDD UL/DL配置变更周期内至少需 要读一次 MIB ,如果 MIB中的 TDD UL/DL配置发生了更新,那么在第 n+x个 TDD UL/DL 配置变更周期开始时,更新后的 TDD UL/DL配置开始生效,如果 x=l ,那么更新后的 TDD UL/DL配置即在第 n+1个 TDD配置变更周期开始生效。
其中 TDD UL/DL配置变更周期可以有两种确定方式:
方式 1 : 基站和终端预先约定或者协议中预先规定默认值, 比如该默认值为 MIB调度 周期的时间长度: 40ms;
方式 2:基站通过 MIB或者专用信令通知给终端,专用信令可以是 RRC/MAC/PDCCH 信令;
步骤 4: 基站确定更新后的 TDD UL/DL配置的生效时间;
在基站侧更新后的 TDD UL/DL配置的生效时间确定方式和 UE侧确定方式相同。 实施例五:
本实施例中, TDD UL/DL 配置变更釆用方法四通知, 生效时间由基站和终端预先约 定或者在协议中配置默认值, 具体如下:
假设基站根据小区内的上下行业务的数据量决定变更 TDD UL/DL配置, 那么基站可 以在子帧 n向小区内的连接态终端发送 RRC信令, 终端接收到 RRC信令后, 进行解析获 取更新后的 TDD UL/DL配置的编号, 在 n+kl时刻开始使用更新后的 TDD UL/DL配置。 n+kl时刻之前, 无论基站和终端都需要使用旧的 TDD UL/DL配置。 其中 kl取值由基站 和终端预先约定或者协议中配置 kl的默认值。
实施例六:
本实施例中, TDD UL/DL 配置变更釆用方法四通知, 生效时间由基站通过显式信令 通知, 具体如下:
假设基站根据小区内的上下行业务的数据量决定变更 TDD UL/DL配置, 那么可以在 子帧 n向小区内的连接态终端发送 RRC信令, 终端接收到 RRC信令后, 进行解析获取更 新后的 TDD UL/DL配置的编号, 然后在 n+kl时刻, 基站和终端同时使用更新后的 TDD UL/DL配置。 在 n+kl之前, 无论基站和终端都需要使用旧的 TDD UL/DL配置。 其中 kl 由基站通过显式信令通知给终端, 显式信令可以是 RRC/MAC/PDCCH信令, 可以是一条 单独的信令, 也可以和其它信令合并, 当然也可以合并到 TDD UL/DL配置通知的信令中。
实施例七:
本实施例中, TDD UL/DL 配置变更釆用方法四通知, 生效时间由基站和终端预先约 定或者在协议中配置默认值, 具体如下:
假设基站根据小区内的上下行业务的数据量决定变更 TDD UL/DL配置, 那么基站可 以在子帧 n向小区内的连接态终端发送 MAC信令, 即 MAC CE, 终端接收到 MAC信令 后,进行解析获取更新后的 TDD UL/DL配置的编号,在 n+kl时刻同时使用更新后的 TDD UL/DL配置。 n+kl 时刻之前, 无论基站和终端都需要使用旧的 TDD UL/DL配置。 其中 kl取值由基站和终端预先约定或者协议中配置 kl的默认值。 典型的 kl取值可以取 8ms。
实施例八:
本实施例中, TDD UL/DL 配置变更釆用方法四通知, 生效时间由基站通过显式信令 通知, 具体如下:
假设基站根据小区内的上下行业务的数据量决定变更 TDD UL/DL配置, 那么可以在 子帧 n向小区内的连接态终端发送 MAC信令, 即 MAC CE, 终端接收到 MAC信令后, 进行解析获取更新后的 TDD UL/DL配置的编号, 然后在 n+kl时刻,基站和终端同时使用 更新后的 TDD UL/DL配置。 在 n+kl之前, 无论基站和终端都需要使用旧的 TDD UL/DL 配置。其中 kl由基站通过显式信令通知给终端,显式信令可以是 RRC/MAC/PDCCH信令, 可以是一条单独的信令, 也可以和其它信令合并, 当然也可以合并到 TDD UL/DL配置通 知的信令中。 典型的 kl可以配置为 8ms。
实施例九:
本实施例中, TDD UL/DL配置变更釆用方法四通知,生效时间釆用绝对时间,在 TDD UL/DL配置更新的 MAC信令中携带, 具体如下:
假设基站根据小区内的上下行业务的数据量决定变更 TDD UL/DL配置, 那么可以在
子帧 n向小区内的连接态终端发送 MAC信令, 即 MAC CE, 终端接收到 MAC信令后, 进行解析获取更新后的 TDD UL/DL配置的编号和生效时间 (包括 SFN和子帧编号), 然 后在 MAC信令指定的生效时间对应的 SFN和子帧, 基站和终端同时使用更新后的 TDD UL/DL配置。 在此时刻之前, 无论基站和终端都需要使用旧的 TDD UL/DL配置。
当然, 生效时间也可以通过一条单独的 MAC CE由基站通知 UE。
RRC信令通知生效时间的方式和实施例九类似,不同之处就在于生效时间和更新后的 TDD UL/DL配置的编号釆用 RRC信令通知。 此外, 还可以考虑更更新后的 TDD UL/DL 配置的编号釆用 RRC信令通知、 生效时间釆用 MAC信令通知, 或者更更新后的 TDD UL/DL配置的编号釆用 MAC信令、 生效时间釆用 RRC信令通知的方式。
实施例十:
本实施例中, TDD UL/DL配置变更釆用方法五通知,生效时间釆用绝对时间,在 TDD UL/DL配置更新的 PDCCH信令中携带, 具体如下:
假设基站根据小区内的上下行业务的数据量决定变更 TDD UL/DL配置, 那么可以在 子帧 n向小区内的连接态终端发送 PDCCH信令, 终端接收到 PDCCH信令后, 进行解析 获取更新后的 TDD UL/DL配置的编号和生效时间(包括 SFN和子帧编号),然后在 PDCCH 信令指定的生效时间对应的 SFN和子帧,基站和终端同时使用更新后的 TDD UL/DL配置。 在此时刻之前, 无论基站和终端都需要使用旧的 TDD UL/DL配置。
当然, 生效时间也可以通过一条单独的 PDCCH信令由基站通知 UE。
RRC信令通知生效时间的方式和实施例十类似,不同之处就在于生效时间和更新后的 TDD UL/DL配置的编号釆用 RRC信令通知。 此外, 还可以考虑更更新后的 TDD UL/DL 配置的编号釆用 RRC信令通知、 生效时间釆用 PDCCH信令通知, 或者更更新后的 TDD UL/DL配置的编号釆用 PDCCH信令、 生效时间釆用 RRC信令通知的方式。
参见图 7, 本发明实施例提供一种基站, 该基站包括:
发送单元 70, 用于在更新小区的 TDD上 /下行配置的后, 将更新后的 TDD上 /下行配 置的信息发送给所述小区内的终端;
确定单元 71 , 用于按照与终端相同的生效时间确定方法确定所述更新后的 TDD上 /下 行配置的生效时间;
传输单元 72, 用于在该生效时间到达时开始使用所述更新后的 TDD上 /下行配置的进 行数据传输。
进一步的, 所述发送单元 70用于: 釆用如下四种方法中的一种方法将更新后的 TDD 上 /下行配置的信息发送给所述小区内的终端:
方法一: 在一个广播控制信道 BCCH修改周期内 , 通过寻呼消息通知所述小区内的终 端系统信息发生变更, 并在下一个 BCCH修改周期内发送更新后的系统信息, 该更新后的 系统信息中携带更新后的 TDD上 /下行配置的信息;
方法二: 在一个 BCCH修改周期内, 通过寻呼消息通知所述小区内的终端 TDD上 /下 行配置的发生变更, 并在后续发送的系统信息中增加新的信息单元 IE, 该 IE中携带更新 后的 TDD上 /下行配置的信息; 该 IE携带在 MIB或者 SIB1或者其它 SIB中;
方法三:在一个 TDD上 /下行配置的变更周期内通过主信息块 MIB发送更新后的 TDD 上 /下行配置的信息;
方法四: 通过无线资源控制 RRC信令或媒体接入控制 MAC信令, 将更新后的 TDD 上 /下行配置的信息发送给所述小区内的终端;
方法五: 通过 PDCCH, 将更新后的 TDD上 /下行配置的信息发送给小区内的终端。 进一步的, 所述确定单元 71用于:
在釆用方法一时, 确定所述更新后的 TDD上 /下行配置的生效时间为下一个 BCCH修 改周期的起始时间点后的第 N毫秒; 或者,
在所述寻呼消息或所述更新后的系统信息中还携带所述更新后的 TDD上 /下行配置的 生效时间, 确定所述更新后的 TDD上 /下行配置的生效时间为所述寻呼消息或所述更新后 的系统信息中携带的生效时间。
进一步的, 在所述更新后的 TDD上 /下行配置的信息携带在 MIB中时, N的取值为 m 个 MIB调度周期的时间长度; 或者,
在所述更新后的 TDD上 /下行配置的信息携带在 SIB1中时, N的取值为 m个 SIB1调 度周期的时间长度; 或者,
在所述更新后的 TDD上 /下行配置的信息携带在其它 SIB中时, N的取值为 m个调度 信息窗 Si-window的时间长度; 或者,
N的取值为 m个 BCCH 爹改周期的时间长度;
其中, m为不小于 1的整数。
进一步的, 所述确定单元 71用于:
在釆用方法二时, 在携带 TDD 上 /下行配置的变更通知的寻呼消息或携带更新后的 TDD上 /下行配置的信息的系统信息中, 还携带所述更新后的 TDD上 /下行配置的生效时 间, 基站确定所述更新后的 TDD上 /下行配置的生效时间为所述携带 TDD上 /下行配置的 变更通知的寻呼消息或携带更新后的 TDD上 /下行配置的信息的系统信息中携带的生效时 间。
进一步的, 所述确定单元 71用于:
在釆用方法三时, 确定所述更新后的 TDD上 /下行配置的生效时间为所述 TDD上 /下 行配置的变更周期后的第 X个 TDD上 /下行配置的变更周期的起始时刻, X为不小于 1的 整数, X的取值由基站和终端预先约定或者基站通知给终端。
进一步的, 该基站还包括:
第一约定通知单元 73 ,用于与终端预先约定 TDD上 /下行配置的变更周期的时间长度; 或者,
通过 MIB或专用信令将 TDD上 /下行配置的变更周期的时间长度通知给终端。
进一步的, 所述确定单元 71用于:
在釆用方法四时, 确定所述更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 kl 个子帧, 子帧 n为基站发送所述 RRC信令或 MAC信令所在的子帧, kl为不小于 1的整 数; 或者,
通过信令将所述更新后的 TDD上 /下行配置的生效时间发送给终端, 确定所述更新后 的 TDD上 /下行配置的生效时间为发送给终端的生效时间。
进一步的, 所述确定单元 71用于:
在釆用方法五时,确定更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 k2个子 帧, 子帧 n为基站发送 PDCCH信令的子帧, k2为不小于 1的整数; 或者,
通过信令将该更新后的 TDD 上 /下行配置的生效时间发送给终端, 确定该更新后的
TDD上 /下行配置的生效时间为发送给终端的生效时间。
进一步的, 该基站还包括:
第二约定通知单元 74, 用于釆用方法四时, 与终端预先约定 kl的取值, 或预先通过 信令将 kl的取值通知给终端;
釆用方法五时,与终端预先约定 k2的取值,或预先通过信令将 k2的取值通知给终端。 进一步的, 所述确定单元 71 向终端发送所述生效时间所使用的信令, 是发送所述更 新后的 TDD上 /下行配置的信息所使用的信令或其他信令。
参见图 8, 本发明实施例还提供一种终端, 该终端包括:
接收单元 80, 用于接收基站发送的更新后的 TDD上 /下行配置的信息;
确定单元 81 , 用于按照与基站相同的生效时间确定方法确定所述更新后的 TDD上 /下 行配置的生效时间;
传输单元 82, 用于在该生效时间到达时开始使用所述更新后的 TDD上 /下行配置的进 行数据传输。
进一步的, 所述接收单元 80 用于: 釆用如下四种方法中的一种方法接收基站发送的 更新后的 TDD上 /下行配置的信息:
方法一:在一个广播控制信道 BCCH修改周期内接收到基站通过寻呼消息发送的系统 信息变更通知, 在下一个 BCCH修改周期内开始接收基站发送的更新后的系统信息, 并从 更新后的系统信息中获取更新后的 TDD上 /下行配置的信息;
方法二: 在一个 BCCH修改周期内接收到基站通过寻呼消息发送的 TDD上 /下行配置 的变更指示, 立刻开始接收系统信息, 从该系统信息中获取更新后的 TDD上 /下行配置的 信息;
方法三:接收基站在一个 TDD上 /下行配置的变更周期内通过主信息块 MIB发送的更 新后的 TDD上 /下行配置的信息;
方法四: 接收基站通过无线资源控制 RRC信令或媒体接入控制 MAC信令, 发送的更 新后的 TDD上 /下行配置的信息。
方法五: 接收基站通过 PDCCH信令, 发送的更新后的 TDD上 /下行配置的信息。 进一步的, 所述确定单元 81用于:
在釆用方法一时, 确定所述更新后的 TDD上 /下行配置的生效时间为开始接收更新后 的系统信息的 BCCH修改周期的起始时间点后的第 N毫秒; 或者,
在所述寻呼消息或所述更新后的系统信息中还携带所述更新后的 TDD上 /下行配置的 生效时间时, 将所述寻呼消息或所述更新后的系统信息中携带的生效时间确定为所述更新 后的 TDD上 /下行配置的生效时间。
进一步的, 在所述更新后的 TDD上 /下行配置的信息携带在主信息块 MIB中时, N的 取值为 m个 MIB调度周期的时间长度; 或者,
在所述更新后的 TDD上 /下行配置的信息携带在系统信息块 SIB1时, N的取值为 m 个 SIB 1调度周期的时间长度; 或者,
在所述更新后的 TDD上 /下行配置的信息携带在其它 SIB时, N的取值为 m个调度信 息窗 Si-window的时间长度; 或者,
N的取值为 m个 BCCH 爹改周期的时间长度;
其中, m为不小于 1的整数。
进一步的, 所述接收单元 80用于: 在釆用方法二时:
如果所述更新后的 TDD上 /下行配置的信息携带在 MIB中,终端在接收到寻呼消息后, 立即读取 MIB, 从该 MIB中的新增 IE中获取更新后的 TDD上 /下行配置的信息;
如果所述更新后的 TDD上 /下行配置的信息携带在 SIB1中,终端在接收到寻呼消息后,
立即读取 SIB 1 , 从该 SIB 1中的新增 IE中获取更新后的 TDD上 /下行配置的; 如果所述更新后的 TDD上 /下行配置的信息携带在其它 SIB中, 终端在接收到寻呼消 息后, 立即读取 SIB1以获取包含该更新后的 TDD上 /下行配置的信息的 SIB的调度信息, 按照该调度信息读取所述 SIB。
进一步的, 所述确定单元 81用于:
在釆用方法二时, 在所述寻呼消息或携带更新后的 TDD上 /下行配置的信息的系统信 息中, 还携带所述更新后的 TDD上 /下行配置的生效时间时, 终端将所述寻呼消息或所述 携带更新后的 TDD上 /下行配置的信息的系统信息中携带的生效时间, 确定为所述更新后 的 TDD上 /下行配置的生效时间。
进一步的, 所述确定单元 81用于:
在釆用方法三时, 确定所述更新后的 TDD上 /下行配置的生效时间为所述 TDD上 /下 行配置的变更周期后的第 X个 TDD上 /下行配置的变更周期的起始时刻, X为不小于 1的 整数, X的取值由基站和终端预先约定或者基站通知给终端。
进一步的, 所述接收单元 80用于:
在一个 TDD上 /下行配置的周期内至少读取一次 MIB。
进一步的, 该终端还包括:
第一约定接收单元 83 ,用于与基站预先约定 TDD上 /下行配置的变更周期的时间长度; 或者,接收基站预先通过 MIB或专用信令发送的 TDD上 /下行配置的变更周期的时间长度; 根据 TDD上 /下行配置的变更周期的时间长度确定所述 TDD上 /下行配置的变更周期 后的第 X个 TDD上 /下行配置的变更周期的起始时刻。
进一步的, 所述确定单元 81用于:
在釆用方法四时, 确定所述更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 kl 个子帧, 子帧 n为终端接收所述 RRC信令或 MAC信令所在的子帧, kl为不小于 1的整 数; 或者,
将基站预先通过信令发送的生效时间, 确定为所述更新后的 TDD上 /下行配置的生效 时间。
进一步的, 所述确定单元 81用于:
在釆用方法五时,确定更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 k2个子 帧, 子帧 n为基站发送 PDCCH信令的子帧, k2为不小于 1的整数; 或者,
将基站预先通过信令发送的生效时间, 确定为所述更新后的 TDD上 /下行配置的生效 时间。
进一步的, 该终端还包括:
第二约定接收单元 84, 用于在釆用方式四时, 与基站预先约定 kl的取值, 或接收基 站预先通过信令通知的 kl的取值;
在釆用方式五时, 与基站预先约定 k2的取值, 或接收基站预先通过信令通知的 k2的 取值。
进一步的, 所述确定单元 81 发送所述生效时间所使用的信令, 是发送所述更新后的 TDD上 /下行配置的信息所使用的信令或其他信令。
参见图 9, 本发明实施例提供的另一种基站, 该基站包括:
第一处理器 90, 用于按照与终端相同的生效时间确定方法确定所述更新后的 TDD上 / 下行配置的生效时间;
第一发射器 91 , 用于在更新小区的 TDD上 /下行配置的后, 将更新后的 TDD上 /下行 配置的信息发送给所述小区内的终端; 在该生效时间到达时开始使用所述更新后的 TDD 上 /下行配置的进行数据传输。
进一步的, 所述第一发射器 91用于:釆用如下四种方法中的一种方法将更新后的 TDD 上 /下行配置的信息发送给所述小区内的终端:
方法一: 在一个广播控制信道 BCCH修改周期内 , 通过寻呼消息通知所述小区内的终 端系统信息发生变更, 并在下一个 BCCH修改周期内发送更新后的系统信息, 该更新后的 系统信息中携带更新后的 TDD上 /下行配置的信息;
方法二: 在一个 BCCH修改周期内, 通过寻呼消息通知所述小区内的终端 TDD上 /下 行配置的发生变更, 并在后续发送的系统信息中增加新的信息单元 IE, 该 IE中携带更新 后的 TDD上 /下行配置的信息; 该 IE携带在 MIB或者 SIB1或者其它 SIB中;
方法三:在一个 TDD上 /下行配置的变更周期内通过主信息块 MIB发送更新后的 TDD 上 /下行配置的信息;
方法四: 通过无线资源控制 RRC信令或媒体接入控制 MAC信令, 将更新后的 TDD 上 /下行配置的信息发送给所述小区内的终端;
方法五: 通过 PDCCH, 将更新后的 TDD上 /下行配置的信息发送给小区内的终端。 进一步的, 所述第一处理器 90用于:
在釆用方法一时, 确定所述更新后的 TDD上 /下行配置的生效时间为下一个 BCCH修 改周期的起始时间点后的第 N毫秒; 或者,
在所述寻呼消息或所述更新后的系统信息中还携带所述更新后的 TDD上 /下行配置的 生效时间, 确定所述更新后的 TDD上 /下行配置的生效时间为所述寻呼消息或所述更新后
的系统信息中携带的生效时间。
进一步的, 在所述更新后的 TDD上 /下行配置的信息携带在 MIB中时, N的取值为 m 个 MIB调度周期的时间长度; 或者,
在所述更新后的 TDD上 /下行配置的信息携带在 SIB1中时, N的取值为 m个 SIB1调 度周期的时间长度; 或者,
在所述更新后的 TDD上 /下行配置的信息携带在其它 SIB中时, N的取值为 m个调度 信息窗 Si-window的时间长度; 或者,
N的取值为 m个 BCCH 爹改周期的时间长度;
其中, m为不小于 1的整数。
进一步的, 所述第一处理器 90用于:
在釆用方法二时, 在携带 TDD 上 /下行配置的变更通知的寻呼消息或携带更新后的 TDD上 /下行配置的信息的系统信息中, 还携带所述更新后的 TDD上 /下行配置的生效时 间, 基站确定所述更新后的 TDD上 /下行配置的生效时间为所述携带 TDD上 /下行配置的 变更通知的寻呼消息或携带更新后的 TDD上 /下行配置的信息的系统信息中携带的生效时 间。
进一步的, 所述第一处理器 90用于:
在釆用方法三时, 确定所述更新后的 TDD上 /下行配置的生效时间为所述 TDD上 /下 行配置的变更周期后的第 X个 TDD上 /下行配置的变更周期的起始时刻, X为不小于 1的 整数, X的取值由基站和终端预先约定或者基站通知给终端。
进一步的, 第一发射器 91还用于:
与终端预先约定 TDD上 /下行配置的变更周期的时间长度; 或者,
通过 MIB或专用信令将 TDD上 /下行配置的变更周期的时间长度通知给终端。
进一步的, 所述第一处理器 90用于:
在釆用方法四时, 确定所述更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 kl 个子帧, 子帧 n为基站发送所述 RRC信令或 MAC信令所在的子帧, kl为不小于 1的整 数; 或者,
通过信令将所述更新后的 TDD上 /下行配置的生效时间发送给终端, 确定所述更新后 的 TDD上 /下行配置的生效时间为发送给终端的生效时间。
进一步的, 所述第一处理器 90用于:
在釆用方法五时,确定更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 k2个子 帧, 子帧 n为基站发送 PDCCH信令的子帧, k2为不小于 1的整数; 或者,
通过信令将该更新后的 TDD 上 /下行配置的生效时间发送给终端, 确定该更新后的
TDD上 /下行配置的生效时间为发送给终端的生效时间。
进一步的, 第一发射器 91还用于:
在釆用方式四时, 与终端预先约定 kl的取值, 或预先通过信令将 kl的取值通知给终 端; 在釆用方式五时, 与终端预先约定 k2的取值, 或预先通过信令将 k2的取值通知给终 端。
进一步的, 所述第一处理器 90 向终端发送所述生效时间所使用的信令, 是发送所述 更新后的 TDD上 /下行配置的信息所使用的信令或其他信令。
参见图 10, 本发明实施例还提供一种终端, 该终端包括:
接收器 100, 用于接收基站发送的更新后的 TDD上 /下行配置的信息;
第二处理器 101 ,用于按照与基站相同的生效时间确定方法确定所述更新后的 TDD上 /下行配置的生效时间;
第二发射器 102, 用于在该生效时间到达时开始使用所述更新后的 TDD上 /下行配置 的进行数据传输。
进一步的, 所述接收器 100用于: 釆用如下四种方法中的一种方法接收基站发送的更 新后的 TDD上 /下行配置的信息:
方法一:在一个广播控制信道 BCCH修改周期内接收到基站通过寻呼消息发送的系统 信息变更通知, 在下一个 BCCH修改周期内开始接收基站发送的更新后的系统信息, 并从 更新后的系统信息中获取更新后的 TDD上 /下行配置的信息;
方法二: 在一个 BCCH修改周期内接收到基站通过寻呼消息发送的 TDD上 /下行配置 的变更指示, 立刻开始接收系统信息, 从该系统信息中获取更新后的 TDD上 /下行配置的 信息;
方法三:接收基站在一个 TDD上 /下行配置的变更周期内通过主信息块 MIB发送的更 新后的 TDD上 /下行配置的信息;
方法四: 接收基站通过无线资源控制 RRC信令或媒体接入控制 MAC信令, 发送的更 新后的 TDD上 /下行配置的信息;
方法五: 接收基站通过 PDCCH信令, 发送的更新后的 TDD上 /下行配置的信息。 进一步的, 所述第二处理器 101用于:
在釆用方法一时, 确定所述更新后的 TDD上 /下行配置的生效时间为开始接收更新后 的系统信息的 BCCH修改周期的起始时间点后的第 N毫秒; 或者,
在所述寻呼消息或所述更新后的系统信息中还携带所述更新后的 TDD上 /下行配置的
生效时间时, 将所述寻呼消息或所述更新后的系统信息中携带的生效时间确定为所述更新 后的 TDD上 /下行配置的生效时间。
进一步的, 在所述更新后的 TDD上 /下行配置的信息携带在主信息块 MIB中时, N的 取值为 m个 MIB调度周期的时间长度; 或者,
在所述更新后的 TDD上 /下行配置的信息携带在系统信息块 SIB1时, N的取值为 m 个 SIB 1调度周期的时间长度; 或者,
在所述更新后的 TDD上 /下行配置的信息携带在其它 SIB时, N的取值为 m个调度信 息窗 Si-window的时间长度; 或者,
N的取值为 m个 BCCH 爹改周期的时间长度;
其中, m为不小于 1的整数。
进一步的, 所述接收器 100用于: 在釆用方法二时:
如果所述更新后的 TDD上 /下行配置的信息携带在 MIB中,终端在接收到寻呼消息后, 立即读取 MIB, 从该 MIB中的新增 IE中获取更新后的 TDD上 /下行配置的信息;
如果所述更新后的 TDD上 /下行配置的信息携带在 SIB1中,终端在接收到寻呼消息后, 立即读取 SIB 1 , 从该 SIB 1中的新增 IE中获取更新后的 TDD上 /下行配置的;
如果所述更新后的 TDD上 /下行配置的信息携带在其它 SIB中, 终端在接收到寻呼消 息后, 立即读取 SIB1以获取包含该更新后的 TDD上 /下行配置的信息的 SIB的调度信息, 按照该调度信息读取所述 SIB。
进一步的, 所述第二处理器 101用于:
在釆用方法二时, 在所述寻呼消息或携带更新后的 TDD上 /下行配置的信息的系统信 息中, 还携带所述更新后的 TDD上 /下行配置的生效时间时, 终端将所述寻呼消息或所述 携带更新后的 TDD上 /下行配置的信息的系统信息中携带的生效时间, 确定为所述更新后 的 TDD上 /下行配置的生效时间。
进一步的, 所述第二处理器 101用于:
在釆用方法三时, 确定所述更新后的 TDD上 /下行配置的生效时间为所述 TDD上 /下 行配置的变更周期后的第 X个 TDD上 /下行配置的变更周期的起始时刻, X为不小于 1的 整数, X的取值由基站和终端预先约定或者基站通知给终端。
进一步的, 所述接收器 100用于:
在一个 TDD上 /下行配置的周期内至少读取一次 MIB。
进一步的, 所述接收器 100还用于:
与基站预先约定 TDD上 /下行配置的变更周期的时间长度; 或者, 接收基站预先通过
MIB或专用信令发送的 TDD上 /下行配置的变更周期的时间长度;
根据 TDD上 /下行配置的变更周期的时间长度确定所述 TDD上 /下行配置的变更周期 后的第 X个 TDD上 /下行配置的变更周期的起始时刻。
进一步的, 所述第二处理器 101用于:
在釆用方法四时, 确定所述更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 kl 个子帧, 子帧 n为终端接收所述 RRC信令或 MAC信令所在的子帧, kl为不小于 1的整 数; 或者,
将基站预先通过信令发送的生效时间, 确定为所述更新后的 TDD上 /下行配置的生效 时间。
进一步的, 所述第二处理器 101用于:
在釆用方法五时,确定更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 k2个子 帧, 子帧 n为基站发送 PDCCH信令的子帧, k2为不小于 1的整数; 或者,
将基站预先通过信令发送的生效时间, 确定为所述更新后的 TDD上 /下行配置的生效 时间。
进一步的, 所述接收器 100还用于:
在釆用方式四时, 与基站预先约定 kl的取值, 或接收基站预先通过信令通知的 kl的 取值; 在釆用方式五时, 与基站预先约定 k2的取值, 或接收基站预先通过信令通知的 k2 的取值。
进一步的, 所述第二处理器 101用于:
发送所述生效时间所使用的信令, 是发送所述更新后的 TDD上 /下行配置的信息所使 用的信令或其他信令。
本发明是参照根据本发明实施例的方法、 设备(系统)、 和计算机程序产品的流程图 和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图和 /或方框图中的每一流 程和 /或方框、 以及流程图和 /或方框图中的流程和 /或方框的结合。 可提供这些计算机 程序指令到通用计算机、 专用计算机、 嵌入式处理机或其他可编程数据处理设备的第一处 理器以产生一个机器, 使得通过计算机或其他可编程数据处理设备的第一处理器执行的指 令产生用于实现在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定 的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方 式工作的计算机可读存储器中, 使得存储在该计算机可读存储器中的指令产生包括指令装 置的制造品, 该指令装置实现在流程图一个流程或多个流程和 /或方框图一个方框或多个
方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上, 使得在计算机 或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理, 从而在计算机或其他 可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和 /或方框图一个 方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例, 但本领域内的技术人员一旦得知了基本创造性概 念, 则可对这些实施例作出另外的变更和修改。 所以, 所附权利要求意欲解释为包括优选 实施例以及落入本发明范围的所有变更和修改。
显然, 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和 范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。
Claims
1、 一种时分双工 TDD上 /下行配置的更新方法, 其特征在于, 该方法包括: 基站在更新小区的 TDD上 /下行配置的后, 将更新后的 TDD上 /下行配置的信息发送 给所述小区内的终端;
所述基站按照与终端相同的生效时间确定方法确定所述更新后的 TDD上 /下行配置的 生效时间, 并在该生效时间到达时开始使用所述更新后的 TDD上 /下行配置的进行数据传 输。
2、如权利要求 1所述的方法, 其特征在于, 所述基站将更新后的 TDD上 /下行配置的 信息发送给所述小区内的终端, 具体包括如下四种方法中的一种:
方法一: 所述基站在一个广播控制信道 BCCH修改周期内, 通过寻呼消息通知所述小 区内的终端系统信息发生变更, 并在下一个 BCCH修改周期内发送更新后的系统信息, 该 更新后的系统信息中携带更新后的 TDD上 /下行配置的信息;
方法二: 所述基站在一个 BCCH修改周期内, 通过寻呼消息通知所述小区内的终端
TDD上 /下行配置的发生变更, 并在后续发送的系统信息中增加新的信息单元 IE, 该 IE中 携带更新后的 TDD上 /下行配置的信息; 该 IE携带在主信息块 MIB或者系统信息块 SIB1 或者其它 SIB中;
方法三:所述基站在一个 TDD上 /下行配置的变更周期内通过 MIB发送更新后的 TDD 上 /下行配置的信息;
方法四: 所述基站通过无线资源控制 RRC信令或媒体接入控制 MAC信令, 将更新后 的 TDD上 /下行配置的信息发送给所述小区内的终端;
方法五:基站通过 PDCCH,将更新后的 TDD上 /下行配置的信息发送给小区内的终端。
3、 如权利要求 2 所述的方法, 其特征在于, 在釆用方法一时, 所述基站按照与终端 相同的生效时间确定方法确定所述更新后的 TDD上 /下行配置的生效时间, 具体包括: 所述基站确定所述更新后的 TDD上 /下行配置的生效时间为下一个 BCCH修改周期的 起始时间点后的第 N毫秒; 或者,
所述基站在所述寻呼消息或所述更新后的系统信息中还携带所述更新后的 TDD上 /下 行配置的生效时间, 基站确定所述更新后的 TDD上 /下行配置的生效时间为所述寻呼消息 或所述更新后的系统信息中携带的生效时间。
4、 如权利要求 3所述的方法, 其特征在于, 在所述更新后的 TDD上 /下行配置的信息 携带在 MIB中时, N的取值为 m个 MIB调度周期的时间长度; 或者,
在所述更新后的 TDD上 /下行配置的信息携带在 SIB1中时, N的取值为 m个 SIB1调
度周期的时间长度; 或者,
在所述更新后的 TDD上 /下行配置的信息携带在其它 SIB中时, N的取值为 m个调度 信息窗 Si-window的时间长度; 或者,
N的取值为 m个 BCCH 爹改周期的时间长度;
其中, m为不小于 1的整数。
5、 如权利要求 2 所述的方法, 其特征在于, 在釆用方法二时, 所述基站按照与终端 相同的生效时间确定方法确定所述更新后的 TDD上 /下行配置的生效时间, 具体包括: 所述基站在携带 TDD上 /下行配置的变更通知的寻呼消息或携带更新后的 TDD上 /下 行配置的信息的系统信息中, 还携带所述更新后的 TDD上 /下行配置的生效时间, 基站确 定所述更新后的 TDD上 /下行配置的生效时间为所述携带 TDD上 /下行配置的变更通知的 寻呼消息或携带更新后的 TDD上 /下行配置的信息的系统信息中携带的生效时间。
6、 如权利要求 2 所述的方法, 其特征在于, 在釆用方法三时, 所述基站按照与终端 相同的生效时间确定方法确定所述更新后的 TDD上 /下行配置的生效时间, 具体包括: 所述基站确定所述更新后的 TDD上 /下行配置的生效时间为所述 TDD上 /下行配置的 变更周期后的第 X个 TDD上 /下行配置的变更周期的起始时刻, X为不小于 1的整数, X的 取值由基站和终端预先约定或者基站通知给终端。
7、 如权利要求 6所述的方法, 其特征在于, 进一步包括:
所述基站与终端预先约定 TDD上 /下行配置的变更周期的时间长度; 或者, 所述基站预先通过 MIB或专用信令将 TDD上 /下行配置的变更周期的时间长度通知给 终端。
8、 如权利要求 2 所述的方法, 其特征在于, 在釆用方法四时, 所述基站按照与终端 相同的生效时间确定方法确定所述更新后的 TDD上 /下行配置的生效时间, 具体包括: 所述基站确定所述更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 kl个子帧, 子帧 n为基站发送所述 RRC信令或 MAC信令所在的子帧, kl为不小于 1的整数; 或者, 所述基站通过信令将所述更新后的 TDD上 /下行配置的生效时间发送给终端, 基站确定所 述更新后的 TDD上 /下行配置的生效时间为发送给终端的生效时间;
在釆用方法五时, 所述基站按照与终端相同的生效时间确定方法确定所述更新后的 TDD上 /下行配置的生效时间, 具体包括:
所述基站确定所述更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 k2个子帧, 子帧 n为基站发送该 PDCCH信令的子帧, k2为不小于 1的整数; 或者, 所述基站通过信 令将所述更新后的 TDD上 /下行配置的生效时间发送给终端,基站确定该更新后的 TDD上
/下行配置的生效时间为发送给终端的生效时间。
9、 如权利要求 8所述的方法, 其特征在于, kl的取值由所述基站与终端预先约定, 或由所述基站通过信令将 kl的取值通知给终端;
K2的取值由所述基站与终端预先约定, 或由所述基站通过信令将 k2的取值通知给终 端。
10、 如权利要求 8所述的方法, 其特征在于, 所述基站向终端发送所述生效时间所使 用的信令, 是发送所述更新后的 TDD上 /下行配置的信息所使用的信令或其他信令。
11、 一种时分双工 TDD上 /下行配置的更新方法, 其特征在于, 该方法包括: 终端接收基站发送的更新后的 TDD上 /下行配置的信息;
所述终端按照与基站相同的生效时间确定方法确定所述更新后的 TDD上 /下行配置的 生效时间, 并在该生效时间到达时开始使用所述更新后的 TDD上 /下行配置的进行数据传 输。
12、如权利要求 11所述的方法,其特征在于, 所述终端接收基站发送的更新后的 TDD 上 /下行配置的信息, 具体包括如下四种方法中的一种:
方法一: 所述终端在一个广播控制信道 BCCH修改周期内接收到基站通过寻呼消息发 送的系统信息变更通知,在下一个 BCCH修改周期内开始接收基站发送的更新后的系统信 息, 并从更新后的系统信息中获取更新后的 TDD上 /下行配置的信息;
方法二: 所述终端在一个 BCCH修改周期内接收到基站通过寻呼消息发送的 TDD上 / 下行配置的变更指示, 立刻开始接收系统信息, 从该系统信息中获取更新后的 TDD上 /下 行配置的信息;
方法三: 所述终端接收基站在一个 TDD上 /下行配置的变更周期内通过主信息块 MIB 发送的更新后的 TDD上 /下行配置的信息;
方法四: 所述终端接收基站通过无线资源控制 RRC信令或媒体接入控制 MAC信令, 发送的更新后的 TDD上 /下行配置的信息;
方法五: 所述终端接收基站通过 PDCCH信令, 发送的更新后的 TDD上 /下行配置的 信息。
13、 如权利要求 12 所述的方法, 其特征在于, 在釆用方法一时, 所述终端按照与基 站相同的生效时间确定方法确定所述更新后的 TDD上 /下行配置的生效时间, 具体包括: 所述终端确定所述更新后的 TDD上 /下行配置的生效时间为开始接收更新后的系统信 息的 BCCH修改周期的起始时间点后的第 N毫秒; 或者,
在所述寻呼消息或所述更新后的系统信息中还携带所述更新后的 TDD上 /下行配置的
生效时间时, 所述终端将所述寻呼消息或所述更新后的系统信息中携带的生效时间确定为 所述更新后的 TDD上 /下行配置的生效时间。
14、 如权利要求 13所述的方法, 其特征在于, 在所述更新后的 TDD上 /下行配置的信 息携带在主信息块 MIB中时, N的取值为 m个 MIB调度周期的时间长度; 或者,
在所述更新后的 TDD上 /下行配置的信息携带在系统信息块 SIB1时, N的取值为 m 个 SIB 1调度周期的时间长度; 或者,
在所述更新后的 TDD上 /下行配置的信息携带在其它 SIB时, N的取值为 m个调度信 息窗 Si-window的时间长度; 或者,
N的取值为 m个 BCCH 爹改周期的时间长度;
其中, m为不小于 1的整数。
15、 如权利要求 12 所述的方法, 其特征在于, 在釆用方法二时, 所述终端立刻开始 接收系统信息, 从该系统信息中获取更新后的 TDD上 /下行配置的信息, 具体包括: 如果所述更新后的 TDD上 /下行配置的信息携带在 MIB中,所述终端在接收到寻呼消 息后, 立即读取 MIB, 从该 MIB中的新增 IE中获取更新后的 TDD上 /下行配置的信息; 如果所述更新后的 TDD上 /下行配置的信息携带在 SIB1中,所述终端在接收到寻呼消 息后, 立即读取 SIB 1 , 从该 SIB 1中的新增 IE中获取更新后的 TDD上 /下行配置的; 如果所述更新后的 TDD上 /下行配置的信息携带在其它 SIB中, 所述终端在接收到寻 呼消息后,立即读取 SIB1以获取包含该更新后的 TDD上 /下行配置的信息的 SIB的调度信 息, 按照该调度信息读取所述 SIB。
16、 如权利要求 12 所述的方法, 其特征在于, 在釆用方法二时, 所述终端按照与基 站相同的生效时间确定方法确定所述更新后的 TDD上 /下行配置的生效时间, 具体包括: 在所述寻呼消息或携带更新后的 TDD上 /下行配置的信息的系统信息中, 还携带所述 更新后的 TDD上 /下行配置的生效时间时, 所述终端将所述寻呼消息或所述携带更新后的 TDD上 /下行配置的信息的系统信息中携带的生效时间,确定为所述更新后的 TDD上 /下行 配置的生效时间。
17、 如权利要求 12 所述的方法, 其特征在于, 在釆用方法三时, 所述终端按照与基 站相同的生效时间确定方法确定所述更新后的 TDD上 /下行配置的生效时间, 具体包括: 所述终端确定所述更新后的 TDD上 /下行配置的生效时间为所述 TDD上 /下行配置的 变更周期后的第 X个 TDD上 /下行配置的变更周期的起始时刻, X为不小于 1的整数, X的 取值由基站和终端预先约定或者基站通知给终端。
18、 如权利要求 17所述的方法, 其特征在于, 终端在一个 TDD上 /下行配置的周期内
至少读取一次 MIB。
19、 如权利要求 17所述的方法, 其特征在于, 进一步包括:
所述终端与基站预先约定 TDD上 /下行配置的变更周期的时间长度; 或者, 终端接收 基站通过 MIB或专用信令发送的 TDD上 /下行配置的变更周期的时间长度;
所述终端根据 TDD上 /下行配置的变更周期的时间长度确定所述 TDD上 /下行配置的 变更周期后的第 X个 TDD上 /下行配置的变更周期的起始时刻。
20、 如权利要求 12 所述的方法, 其特征在于, 在釆用方法四时, 所述终端按照与基 站相同的生效时间确定方法确定所述更新后的 TDD上 /下行配置的生效时间, 具体包括: 所述终端确定所述更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 kl个子帧, 子帧 n为终端接收所述 RRC信令或 MAC信令所在的子帧, kl为不小于 1的整数; 或者, 所述终端将基站预先通过信令发送的生效时间, 确定为所述更新后的 TDD上 /下行配置的 生效时间;
在釆用方法五时, 所述终端按照与基站相同的生效时间确定方法确定所述更新后的 TDD上 /下行配置的生效时间, 具体包括:
所述终端确定更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 k2个子帧,子帧 n为基站发送 PDCCH信令的子帧, k2为不小于 1的整数; 或者, 所述终端将基站预先通 过信令发送的生效时间, 确定为所述更新后的 TDD上 /下行配置的生效时间。
21、 如权利要求 20所述的方法, 其特征在于, kl的取值由终端与基站预先约定, 或 由基站预先通过信令将 kl的取值通知给终端;
K2的取值由终端与基站预先约定, 或由基站预先通过信令将 k2的取值通知给终端。
22、 如权利要求 20所述的方法, 其特征在于, 基站发送所述生效时间所使用的信令, 是发送所述更新后的 TDD上 /下行配置的信息所使用的信令或其他信令。
23、 一种基站, 其特征在于, 该基站包括:
发送单元, 用于在更新小区的 TDD上 /下行配置的后, 将更新后的 TDD上 /下行配置 的信息发送给所述小区内的终端;
确定单元, 用于按照与终端相同的生效时间确定方法确定所述更新后的 TDD上 /下行 配置的生效时间;
传输单元, 用于在该生效时间到达时开始使用所述更新后的 TDD上 /下行配置的进行 数据传输。
24、 如权利要求 23 所述的基站, 其特征在于, 所述发送单元具体用于: 釆用如下四 种方法中的一种方法将更新后的 TDD上 /下行配置的信息发送给所述小区内的终端:
方法一: 在一个广播控制信道 BCCH修改周期内 , 通过寻呼消息通知所述小区内的终 端系统信息发生变更, 并在下一个 BCCH修改周期内发送更新后的系统信息, 该更新后的 系统信息中携带更新后的 TDD上 /下行配置的信息;
方法二: 在一个 BCCH修改周期内, 通过寻呼消息通知所述小区内的终端 TDD上 /下 行配置的发生变更, 并在后续发送的系统信息中增加新的信息单元 IE, 该 IE中携带更新 后的 TDD上 /下行配置的信息; 该 IE携带在 MIB或者 SIB 1或者其它 SIB中;
方法三:在一个 TDD上 /下行配置的变更周期内通过主信息块 MIB发送更新后的 TDD 上 /下行配置的信息;
方法四: 通过无线资源控制 RRC信令或媒体接入控制 MAC信令, 将更新后的 TDD 上 /下行配置的信息发送给所述小区内的终端;
方法五:基站通过 PDCCH,将更新后的 TDD上 /下行配置的信息发送给小区内的终端。
25、 如权利要求 24所述的基站, 其特征在于, 所述确定单元具体用于:
在釆用方法一时, 确定所述更新后的 TDD上 /下行配置的生效时间为下一个 BCCH修 改周期的起始时间点后的第 N毫秒; 或者,
在所述寻呼消息或所述更新后的系统信息中还携带所述更新后的 TDD上 /下行配置的 生效时间, 确定所述更新后的 TDD上 /下行配置的生效时间为所述寻呼消息或所述更新后 的系统信息中携带的生效时间。
26、 如权利要求 25所述的基站, 其特征在于, 在所述更新后的 TDD上 /下行配置的信 息携带在 MIB中时, N的取值为 m个 MIB调度周期的时间长度; 或者,
在所述更新后的 TDD上 /下行配置的信息携带在 SIB 1中时, N的取值为 m个 SIB 1调 度周期的时间长度; 或者,
在所述更新后的 TDD上 /下行配置的信息携带在其它 SIB中时, N的取值为 m个调度 信息窗 Si-window的时间长度; 或者,
N的取值为 m个 BCCH 爹改周期的时间长度;
其中, m为不小于 1的整数。
27、 如权利要求 24所述的基站, 其特征在于, 所述确定单元具体用于:
在釆用方法二时, 在携带 TDD 上 /下行配置的变更通知的寻呼消息或携带更新后的 TDD上 /下行配置的信息的系统信息中, 还携带所述更新后的 TDD上 /下行配置的生效时 间, 基站确定所述更新后的 TDD上 /下行配置的生效时间为所述携带 TDD上 /下行配置的 变更通知的寻呼消息或携带更新后的 TDD上 /下行配置的信息的系统信息中携带的生效时 间。
28、 如权利要求 24所述的基站, 其特征在于, 所述确定单元具体用于: 在釆用方法三时, 确定所述更新后的 TDD上 /下行配置的生效时间为所述 TDD上 /下 行配置的变更周期后的第 X个 TDD上 /下行配置的变更周期的起始时刻, X为不小于 1的 整数, X的取值由基站和终端预先约定或者基站通知给终端。
29、 如权利要求 28所述的基站, 其特征在于, 该基站还包括:
第一约定通知单元, 用于与终端预先约定 TDD上 /下行配置的变更周期的时间长度; 或者,
通过 MIB或专用信令将 TDD上 /下行配置的变更周期的时间长度通知给终端。
30、 如权利要求 24所述的基站, 其特征在于, 所述确定单元具体用于:
在釆用方法四时, 确定所述更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 kl 个子帧, 子帧 n为基站发送所述 RRC信令或 MAC信令所在的子帧, kl为不小于 1的整 数; 或者, 通过信令将所述更新后的 TDD上 /下行配置的生效时间发送给终端, 确定所述 更新后的 TDD上 /下行配置的生效时间为发送给终端的生效时间;
在釆用方法五时, 确定所述更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 k2 个子帧, 子帧 n为基站发送该 PDCCH信令的子帧, k2为不小于 1的整数; 或者, 通过信 令将该更新后的 TDD上 /下行配置的生效时间发送给终端, 确定所述更新后的 TDD上 /下 行配置的生效时间为发送给终端的生效时间
31、 如权利要求 30所述的基站, 其特征在于, 该基站还包括:
第二约定通知单元, 用于与终端预先约定 kl的取值, 或预先通过信令将 kl的取值通 知给终端;
与终端预先约定 k2的取值, 或预先通过信令将 k2的取值通知给终端。
32、 如权利要求 30 所述的基站, 其特征在于, 所述确定单元向终端发送所述生效时 间所使用的信令,是发送所述更新后的 TDD上 /下行配置的信息所使用的信令或其他信令。
33、 一种终端, 其特征在于, 该终端包括:
接收单元, 用于接收基站发送的更新后的 TDD上 /下行配置的信息;
确定单元, 用于终端按照与基站相同的生效时间确定方法确定所述更新后的 TDD上 / 下行配置的生效时间;
传输单元, 用于在该生效时间到达时开始使用所述更新后的 TDD上 /下行配置的进行 数据传输。
34、 如权利要求 33 所述的终端, 其特征在于, 所述接收单元具体用于: 釆用如下四 种方法中的一种方法接收基站发送的更新后的 TDD上 /下行配置的信息:
方法一:在一个广播控制信道 BCCH修改周期内接收到基站通过寻呼消息发送的系统 信息变更通知, 在下一个 BCCH修改周期内开始接收基站发送的更新后的系统信息, 并从 更新后的系统信息中获取更新后的 TDD上 /下行配置的信息;
方法二: 在一个 BCCH修改周期内接收到基站通过寻呼消息发送的 TDD上 /下行配置 的变更指示, 立刻开始接收系统信息, 从该系统信息中获取更新后的 TDD上 /下行配置的 信息;
方法三:接收基站在一个 TDD上 /下行配置的变更周期内通过主信息块 MIB发送的更 新后的 TDD上 /下行配置的信息;
方法四: 接收基站通过无线资源控制 RRC信令或媒体接入控制 MAC信令, 发送的更 新后的 TDD上 /下行配置的信息;
方法五: 所述终端接收基站通过 PDCCH信令, 发送的更新后的 TDD上 /下行配置的 信息。
35、 如权利要求 34所述的终端, 其特征在于, 所述确定单元具体用于:
在釆用方法一时, 确定所述更新后的 TDD上 /下行配置的生效时间为开始接收更新后 的系统信息的 BCCH修改周期的起始时间点后的第 N毫秒; 或者,
在所述寻呼消息或所述更新后的系统信息中还携带所述更新后的 TDD上 /下行配置的 生效时间时, 将所述寻呼消息或所述更新后的系统信息中携带的生效时间确定为所述更新 后的 TDD上 /下行配置的生效时间。
36、 如权利要求 35所述的终端, 其特征在于, 在所述更新后的 TDD上 /下行配置的信 息携带在主信息块 MIB中时, N的取值为 m个 MIB调度周期的时间长度; 或者,
在所述更新后的 TDD上 /下行配置的信息携带在系统信息块 SIB1时, N的取值为 m 个 SIB 1调度周期的时间长度; 或者,
在所述更新后的 TDD上 /下行配置的信息携带在其它 SIB时, N的取值为 m个调度信 息窗 Si-window的时间长度; 或者,
N的取值为 m个 BCCH 爹改周期的时间长度;
其中, m为不小于 1的整数。
37、 如权利要求 34 所述的终端, 其特征在于, 所述接收单元具体用于: 在釆用方法 二时:
如果所述更新后的 TDD上 /下行配置的信息携带在 MIB中,终端在接收到寻呼消息后, 立即读取 MIB, 从该 MIB中的新增 IE中获取更新后的 TDD上 /下行配置的信息;
如果所述更新后的 TDD上 /下行配置的信息携带在 SIB1中,终端在接收到寻呼消息后,
立即读取 SIB 1 , 从该 SIB 1中的新增 IE中获取更新后的 TDD上 /下行配置的; 如果所述更新后的 TDD上 /下行配置的信息携带在其它 SIB中, 终端在接收到寻呼消 息后, 立即读取 SIB1以获取包含该更新后的 TDD上 /下行配置的信息的 SIB的调度信息, 按照该调度信息读取所述 SIB。
38、 如权利要求 34所述的终端, 其特征在于, 所述确定单元具体用于:
在釆用方法二时, 在所述寻呼消息或携带更新后的 TDD上 /下行配置的信息的系统信 息中, 还携带所述更新后的 TDD上 /下行配置的生效时间时, 终端将所述寻呼消息或所述 携带更新后的 TDD上 /下行配置的信息的系统信息中携带的生效时间, 确定为所述更新后 的 TDD上 /下行配置的生效时间。
39、 如权利要求 34所述的终端, 其特征在于, 所述确定单元具体用于:
在釆用方法三时, 确定所述更新后的 TDD上 /下行配置的生效时间为所述 TDD上 /下 行配置的变更周期后的第 X个 TDD上 /下行配置的变更周期的起始时刻, X为不小于 1的 整数, X的取值由基站和终端预先约定或者基站通知给终端。
40、 如权利要求 39所述的终端, 其特征在于, 所述接收单元具体用于:
在一个 TDD上 /下行配置的周期内至少读取一次 MIB。
41、 如权利要求 39所述的终端, 其特征在于, 该终端还包括:
第一约定接收单元, 用于与基站预先约定 TDD上 /下行配置的变更周期的时间长度; 或者,接收基站预先通过 MIB或专用信令发送的 TDD上 /下行配置的变更周期的时间长度; 根据 TDD上 /下行配置的变更周期的时间长度确定所述 TDD上 /下行配置的变更周期 后的第 X个 TDD上 /下行配置的变更周期的起始时刻。
42、 如权利要求 34所述的终端, 其特征在于, 所述确定单元具体用于:
在釆用方法四时, 确定所述更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 kl 个子帧, 子帧 n为终端接收所述 RRC信令或 MAC信令所在的子帧, kl为不小于 1的整 数; 或者, 将基站预先通过信令发送的生效时间, 确定为所述更新后的 TDD上 /下行配置 的生效时间;
在釆用方法五时,确定更新后的 TDD上 /下行配置的生效时间为子帧 n后的第 k2个子 帧, 子帧 n为基站发送 PDCCH信令的子帧, k2为不小于 1的整数; 或者, 将基站预先通 过信令发送的生效时间, 确定为所述更新后的 TDD上 /下行配置的生效时间。
43、 如权利要求 42所述的终端, 其特征在于, 该终端还包括:
第二约定接收单元, 用于与基站预先约定 kl 的取值, 或接收基站预先通过信令通知 的 kl的取值; 与基站预先约定 k2的取值, 或接收基站预先通过信令通知的 k2的取值。
44、 如权利要求 42 所述的终端, 其特征在于, 所述确定单元发送所述生效时间所使 用的信令, 是发送所述更新后的 TDD上 /下行配置的信息所使用的信令或其他信令。
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| TWI713348B (zh) * | 2015-10-08 | 2020-12-11 | 美商蘋果公司 | 增強型自含式時分雙工子訊框結構 |
| WO2020024280A1 (zh) * | 2018-08-03 | 2020-02-06 | 富士通株式会社 | 数据发送和接收方法以及装置 |
| US12185428B2 (en) | 2018-08-03 | 2024-12-31 | Fujitsu Limited | Methods and apparatuses for data transmission and reception |
| CN112335200A (zh) * | 2020-09-25 | 2021-02-05 | 北京小米移动软件有限公司 | 生效时间确定方法、装置、通信设备和存储介质 |
| CN112335200B (zh) * | 2020-09-25 | 2023-08-15 | 北京小米移动软件有限公司 | 生效时间确定方法、装置、通信设备和存储介质 |
| CN114731196A (zh) * | 2022-02-14 | 2022-07-08 | 北京小米移动软件有限公司 | 一种传输系统信息的方法、装置及可读存储介质 |
| CN114731196B (zh) * | 2022-02-14 | 2024-12-03 | 北京小米移动软件有限公司 | 一种传输系统信息的方法、装置及可读存储介质 |
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| Publication number | Publication date |
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| CN103687019A (zh) | 2014-03-26 |
| CN103687019B (zh) | 2017-07-14 |
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