CN103516490A - TDD uplink/downlink configuration transmission feedback method and device - Google Patents
TDD uplink/downlink configuration transmission feedback method and device Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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Abstract
The invention relates to the field of communication and discloses a TDD uplink/downlink configuration transmission feedback method. The method comprises the steps that a base state distributes the latest TDD uplink/downlink configuration to a terminal, the terminal can feed back the receiving situation of the newly-distributed TDD uplink/downlink configuration to the base station, and the base station and the terminal can choose appropriate TDD uplink/downlink configuration according to the receiving situation to control uplink/downlink transmission in a following process. Thus, the situation where the base station and the terminal are different in comprehension of the TDD uplink/downlink configuration is avoided, a fuzzy period is avoided, the base station and the terminal can control uplink/downlink transmission according to identical TDD uplink/downlink configuration, service quality of a system is further effectively guaranteed, and performance of the system is improved.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a transmission feedback method and apparatus for TDD uplink and downlink configuration.
Background
Referring to fig. 1, for the basic duplex mode employed by the cellular system: TDD (time division duplex) mode means that uplink and downlink use the same operating frequency band, and uplink and downlink signals are transmitted at different times, and there is a GP (Guard Period) between the uplink and downlink;
the fdd (frequency Division duplex) mode means that the uplink and downlink use different operating frequency bands, and the uplink and downlink signals can be transmitted on different frequency carriers at the same time, and there is a GB (Guard Band, Guard bandwidth) between the uplink and downlink.
The frame structure of an LTE (Long Term Evolution ) TDD system is somewhat complex. As shown in fig. 2, one radio frame has a length of 10ms, and includes 10 subframes including two types, i.e., a special subframe and a normal subframe, each subframe is 1 ms. The special subframe is divided into 3 slots: DwPTS (downlink pilot time slot), GP, and UpPTS (uplink pilot time slot). The normal subframe includes an uplink subframe and a downlink subframe, and is used for transmitting uplink/downlink control signaling, service data and the like. In one radio frame, two special subframes (usually located in subframes #1 and # 6) may be configured, and one special subframe (usually located in subframe # 1) may also be configured. The DwPTS in the subframe # 0 and the subframe # 5 and the special subframe is always used for downlink transmission, the UpPTS in the subframe # 2 and the special subframe is always used for uplink transmission, and other subframes can be flexibly configured to be used for uplink transmission or downlink transmission according to requirements.
In a TD-LTE (TD-SCDMA Long Term Evolution ) system, the sum of three timeslots DwPTS/GP/UpPTS in a special subframe is 1ms, and the three timeslot lengths are divided to support different configuration situations, as shown in table 1, where the unit of time length is Ts, and 1T is a time length unit in the tables=1/(15000 × 2048) seconds.
TABLE 1
(TD-LTE Special subframe configuration format)
The uplink and downlink subframe allocation in TD-LTE supports 7 different TDD uplink and downlink configuration modes, and specific configuration parameters are shown in table 2 below, where D denotes being used for downlink transmission, U denotes being used for uplink transmission, and S denotes that the subframe is a special subframe and includes three parts, DwPTS, GP, and UpPTS.
TABLE 2
(LTE TDD uplink and downlink subframe configuration format)
The special subframe configuration and the uplink and downlink subframe allocation are broadcasted to all users in the cell through SI (System Information).
In the prior art, an existing uplink and downlink subframe configuration scheme is as follows:
in a certain time period, four subframe types are set, including a subframe fixedly used for downlink transmission, a subframe fixedly used for uplink transmission, and a subframe flexibly allocated to uplink transmission or downlink transmission. Referring to fig. 3, a time period is set as a radio frame (for example only, other time periods are also possible), where subframes # 0 and #5 are fixed downlink subframes, subframes # 2 and #7 are fixed uplink subframes, subframes #1 and #6 are special subframes (which may also be categorized as fixed downlink subframes), and other subframes (such as subframe #3, subframe # 4, subframe # 8, and subframe # 9) are subframes flexibly allocated for uplink transmission or downlink transmission. For the last type of subframe, the base station can perform dynamic configuration according to the real-time service requirement and the channel condition so as to adapt to the dynamic change of the service requirement.
The configuration scheme of the special subframe and the uplink and downlink subframes generally adopts broadcast information to send to users. Currently, the broadcast Information includes MIB (Master Information Block) and SIB (systemlnformationblock), which may be denoted as SIBi (i =1,2, 3.. N), where the TDDTDD uplink and downlink configuration is sent in SIB 1. The transmission period of the SIB1 is fixed to 80ms, and the same content is retransmitted every 20ms within one period. The transmission of the SIB1 is fixed at subframe # 5 of an even radio Frame, and a radio Frame located at SFN (System Frame Number) mod8=0 is transmitted for the first time, as shown in fig. 4.
At present, in common TDD systems, such as a 3G TD-SCDMA system and a 4G TD-LTE system, the configuration of the uplink special subframe and the uplink and downlink subframes is static or semi-static, and the general method is to determine the ratio division of various subframes according to the cell type and the approximate service ratio and keep the ratio division unchanged during the network planning process. This is simpler to do and also more effective in the context of large macro cell coverage.
As technology develops, more and more Pico cells (micro cells), Home nodebs (Home base stations), and other low power base stations are deployed to provide local small coverage. In such cells, the number of users is small, and the change of the user service requirement is large, so that the uplink and downlink service proportion requirement of the cell is dynamically changed, at this time, the network side needs to set the TDD uplink and downlink configuration in a semi-static manner, that is, the system information carrying the TDD uplink and downlink configuration changes frequently. However, because different terminals have different processing capabilities and different actual processing delays, when the system notifies the reconfigured TDD uplink/downlink configuration to each terminal through the system information, the base station cannot determine when each terminal starts to operate according to the new TDD uplink/downlink configuration, so that the base station and the terminal have inconsistent understanding of the TDD uplink/downlink configuration, that is, a fuzzy period exists. If the uplink and downlink transmission is performed in the ambiguity period, the base station and the terminal may not receive and feed back data normally due to the inconsistency of the HARQ (Hybrid Automatic Repeat request) timing relationship defined by the base station and the terminal.
In the prior art, the most direct solution to the above technical problem is that the base station does not schedule the terminal in the ambiguity period, which is usually about 80 ms. The variation period of the TDD uplink and downlink configuration is relatively short (for example, the maximum uplink and downlink variation period considered at present is 640 ms), which causes a lot of resource waste. For example, when the variation cycle of the TDD uplink and downlink configuration is 640ms and the ambiguity period is 80ms, the base station does not schedule the terminal in the next 80ms every 640ms, which causes serious resource waste, and the degree of resource waste is about 12.5% according to statistics; and with the shortening of the change cycle of the TDD uplink and downlink configuration, the phenomenon of resource waste will become more and more serious.
Disclosure of Invention
The embodiment of the invention provides a transmission feedback method and a transmission feedback device for TDD uplink and downlink configuration, which are used for avoiding system resource waste caused by the change of the TDD uplink and downlink configuration.
The embodiment of the invention provides the following specific technical scheme:
a transmission feedback method for TDD uplink and downlink configuration comprises the following steps:
the base station determines newly allocated TDD uplink and downlink configuration for the terminal and informs the newly allocated TDD uplink and downlink configuration to the terminal;
and the base station adopts the corresponding TDD uplink and downlink configuration to control uplink and downlink transmission according to the receiving condition of the newly allocated TDD uplink and downlink configuration fed back by the terminal.
A transmission feedback method for TDD uplink and downlink configuration comprises the following steps:
the terminal receives the newly allocated TDD uplink and downlink configuration of the base station and feeds back the receiving condition of the newly allocated TDD uplink and downlink configuration to the base station;
and the terminal adopts the corresponding TDD uplink and downlink configuration to control uplink and downlink transmission according to the receiving condition of the newly allocated TDD uplink and downlink configuration.
A transmission feedback device for TDD uplink and downlink configuration comprises:
the first processing unit is used for determining newly allocated TDD uplink and downlink configuration for the terminal and informing the newly allocated TDD uplink and downlink configuration to the terminal;
and the second processing unit is used for controlling uplink and downlink transmission by adopting corresponding TDD uplink and downlink configuration according to the receiving condition of the newly allocated TDD uplink and downlink configuration fed back by the terminal.
A transmission feedback device for TDD uplink and downlink configuration comprises:
the communication unit is used for receiving the newly allocated TDD uplink and downlink configuration of the base station and feeding back the receiving condition of the newly allocated TDD uplink and downlink configuration to the base station;
and the control unit is used for adopting the corresponding TDD uplink and downlink configuration to control uplink and downlink transmission according to the receiving condition of the newly allocated TDD uplink and downlink configuration.
In the embodiment of the invention, after the base station allocates the latest TDD uplink and downlink configuration for the terminal, the terminal feeds back the receiving condition of the newly allocated TDD uplink and downlink configuration to the base station, and the base station and the terminal both refer to the receiving condition and select proper TDD uplink and downlink configuration to control uplink and downlink transmission in the subsequent process, so that the condition that the base station side and the terminal side understand the TDD uplink and downlink configuration is inconsistent does not exist, the generation of a fuzzy period is avoided, the base station and the terminal can control uplink and downlink transmission according to the consistent TDD uplink and downlink configuration, the service quality of a system is effectively ensured, and the system performance is improved.
Drawings
FIG. 1 is a diagram illustrating a time-frequency relationship in a basic duplex mode in the prior art;
FIG. 2 is a schematic diagram of a frame structure of a TD-LTE system according to the prior art;
fig. 3 is a schematic diagram of a dynamic uplink and downlink subframe allocation scheme in the prior art;
FIG. 4 is a diagram illustrating a SIB1 transmission scheme in the prior art;
FIG. 5 is a functional block diagram of a base station according to an embodiment of the present invention;
FIG. 6 is a functional block diagram of a terminal according to an embodiment of the present invention;
fig. 7 is a flowchart illustrating a TDD uplink/downlink configuration setup by a base station according to an embodiment of the present invention;
fig. 8 is a flowchart illustrating an uplink and downlink configuration for a terminal using TDD according to an embodiment of the present invention.
Detailed Description
In a system of a TDD system, in order to avoid system resource waste and improve system performance, in the embodiment of the invention, after a base station allocates the latest TDD uplink and downlink configuration for a terminal, the terminal feeds back the receiving condition of the newly allocated TDD uplink and downlink configuration to the base station, and the base station and the terminal select a proper TDD uplink and downlink configuration to control uplink and downlink transmission in a subsequent process according to the receiving condition.
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 5, in the embodiment of the present invention, the base station includes a first processing unit 50 and a second processing unit 51, wherein,
a first processing unit 50, configured to determine a newly allocated TDD uplink and downlink configuration for the terminal, and notify the newly allocated TDD uplink and downlink configuration to the terminal;
and a second processing unit 51, configured to control uplink and downlink transmission by using the corresponding TDD uplink and downlink configuration according to the receiving condition of the newly allocated TDD uplink and downlink configuration fed back by the terminal.
Referring to fig. 6, in the embodiment of the present invention, the terminal includes a communication unit 60 and a control unit 61, wherein,
a communication unit 60, configured to receive a TDD uplink/downlink configuration newly allocated by a base station, and feed back a reception condition of the newly allocated TDD uplink/downlink configuration to the base station;
and a control unit 61, configured to control uplink and downlink transmission by using the corresponding TDD uplink and downlink configuration according to the receiving condition of the newly allocated TDD uplink and downlink configuration.
Referring to fig. 7, in the embodiment of the present invention, a detailed flow of setting the TDD uplink and downlink configuration for the terminal by the base station is as follows:
step 700: and the base station determines the newly allocated TDD uplink and downlink configuration for the terminal and informs the terminal of the TDD uplink and downlink configuration.
In the embodiment of the present invention, because the network environment is changing constantly, the base station may dynamically and periodically allocate TDD uplink and downlink configurations to the terminal according to the actual application environment, for example, the TDD uplink and downlink configurations are allocated to the terminal in a period of 640ms, 320ms, and so on.
Generally, the base station may carry the newly allocated TDD uplink and downlink configuration on a PDSCH (physical downlink Shared Channel), and send the TDD uplink and downlink configuration to the terminal through system information.
Step 710: and the base station adopts the corresponding TDD uplink and downlink configuration to control uplink and downlink transmission according to the receiving condition of the newly allocated TDD uplink and downlink configuration fed back by the terminal.
Specifically, when the base station determines that the terminal correctly receives the newly allocated TDD uplink and downlink configuration according to the feedback of the terminal, the newly allocated TDD uplink and downlink configuration is adopted to control uplink and downlink transmission in the subsequent process until the new TDD uplink and downlink configuration is allocated next time, and when the base station determines that the terminal does not correctly receive the newly allocated TDD uplink and downlink configuration according to the feedback of the terminal, the currently used TDD uplink and downlink configuration is continuously adopted to control uplink and downlink transmission in the subsequent process until the terminal feeds back the newly allocated TDD uplink and downlink configuration that has been correctly received; the so-called control uplink and downlink transmission at least comprises the following steps: and the base station adopts newly allocated or currently used TDD uplink and downlink configuration, schedules corresponding uplink and downlink resources for each subframe, and configures the HARQ feedback time sequence relation among the subframes.
In this embodiment, when step 710 is executed, the base station may receive, by using a physical layer signaling or a higher layer signaling, the receiving condition of the newly allocated TDD uplink and downlink configuration fed back by the terminal.
A. Take physical layer signaling as an example.
Physical layer signaling is usually carried on a PUCCH (Physical Uplink Control CHannel), and the base station may receive ACK (correct response) fed back by the terminal through the Physical layer signaling, or receive ACK or NACK (incorrect response) fed back by the terminal through the Physical layer signaling, where in the former case, the terminal only feeds back ACK to the base station when correctly receiving newly allocated TDD Uplink and downlink configuration, and therefore, if the base station does not receive ACK fed back by the base station, the default terminal does not correctly receive newly allocated TDD Uplink and downlink configuration, and in the latter case, the base station determines that the terminal has correctly received newly allocated TDD Uplink and downlink configuration if receives ACK fed back by the terminal, and determines that the terminal does not correctly receive newly allocated TDD Uplink and downlink configuration if receives NACK fed back by the terminal. This is true in the following embodiments, and will not be described again.
Certainly, the HARQ timing relationship between the subframe k used by the base station to send the newly allocated TDD uplink/downlink configuration and the subframe n used to receive the physical layer signaling carrying the feedback information may be predetermined by the base station and the terminal, or configured to the terminal by the base station.
B. Take higher layer signaling as an example.
The high layer signaling adopted by the base station may be MAC (Medium Access Control) signaling or RRC (Radio Resource Control) signaling. The base station can receive the ACK fed back by the terminal through MAC signaling or RRC signaling; or, an identifier (e.g., a serial number of the TDD downlink configuration) of the TDD uplink and downlink configuration currently used by the terminal, which is fed back by the terminal, may also be received through the MAC signaling or the RRC signaling, where in the last case, if the terminal feeds back the serial number of the newly allocated TDD uplink and downlink configuration, it indicates that the terminal has correctly received the newly allocated TDD uplink and downlink configuration, and if the terminal feeds back the serial number of the currently used TDD uplink and downlink configuration, it indicates that the terminal has not correctly received the newly allocated TDD uplink and downlink configuration.
Further, the base station may further obtain time information for the terminal to receive the newly allocated TDD uplink/downlink configuration in the MAC signaling or the RCC signaling, and according to the time information, the base station and the terminal may synchronously and accurately know from which time the newly allocated TDD uplink/downlink configuration should be used to control uplink/downlink transmission, so as to avoid a fuzzy period.
Based on the foregoing embodiments, correspondingly, referring to fig. 8, in the embodiments of the present invention, a detailed flow of using TDD uplink and downlink configuration by a terminal according to an instruction of a base station is as follows:
step 800: and the terminal receives the newly allocated TDD uplink and downlink configuration of the base station and feeds back the receiving condition of the newly allocated TDD uplink and downlink configuration to the base station.
In the embodiment of the present invention, because the network environment is changing constantly, the base station may dynamically and periodically allocate TDD uplink and downlink configurations to the terminal according to the actual application environment, for example, the TDD uplink and downlink configurations are allocated to the terminal in a period of 640ms, 320ms, and so on. In general, a terminal may receive a TDD uplink and downlink configuration transmitted by a base station through system information carried on a PDSCH.
In this embodiment, when performing step 800, the terminal may use a physical layer signaling or a higher layer signaling to feed back the receiving condition of the newly allocated TDD uplink and downlink configuration to the base station.
A. Take physical layer signaling as an example.
Physical layer signaling is usually carried on PUCCH, and the terminal may feed back ACK to the base station through physical layer signaling, or may feed back ACK or NACK to the base station through physical layer signaling.
Certainly, the HARQ timing relationship between the subframe k used by the terminal to receive the newly allocated TDD uplink and downlink configuration and the subframe n used to send the physical layer signaling carrying the feedback information may be predetermined by the base station and the terminal, or configured to the terminal by the base station.
B. Take higher layer signaling as an example.
The higher layer signaling adopted by the terminal may be MAC signaling or RRC signaling. The terminal can feed back the ACK to the base station through MAC signaling or RRC signaling; or, the ACK or NACK may be fed back to the base station through MAC signaling or RRC signaling, or the identifier of the TDD uplink and downlink configuration currently used by the terminal (e.g., the serial number of the TDD downlink configuration) may be fed back to the base station through MAC signaling or RRC signaling.
Further, the terminal may further carry time information for receiving newly allocated TDD uplink and downlink configurations in the MAC signaling or the RCC signaling, and according to the time information, the base station and the terminal may synchronously and accurately know from which time the newly allocated TDD uplink and downlink configurations should be used to control uplink and downlink transmission, so as to avoid a fuzzy period.
Step 810: and the terminal adopts the corresponding TDD uplink and downlink configuration to control uplink and downlink transmission according to the receiving condition of the newly allocated TDD uplink and downlink configuration.
Specifically, when the terminal correctly receives the newly allocated TDD uplink and downlink configuration, the newly allocated TDD uplink and downlink configuration is adopted to control uplink and downlink transmission in the subsequent process until the next time the base station allocates the new TDD uplink and downlink configuration, and when the terminal determines that the terminal does not correctly receive the newly allocated TDD uplink and downlink configuration, the currently used TDD uplink and downlink configuration is continuously adopted to control uplink and downlink transmission in the subsequent process until the terminal correctly receives the newly allocated TDD uplink and downlink configuration (the base station may repeatedly issue), wherein the so-called uplink and downlink transmission control at least includes: and the base station adopts newly allocated or currently used TDD uplink and downlink configuration, schedules corresponding uplink and downlink resources for each subframe, and configures the HARQ feedback time sequence relation among the subframes.
The above embodiments will be described in further detail below with reference to several specific application scenarios as examples.
Scene one: and the terminal feeds back whether the newly allocated TDD uplink and downlink configuration is correctly received or not by adopting RRC signaling.
After the terminal correctly receives the TDD uplink and downlink configuration newly allocated by the base station (for example, the TDD uplink and downlink configuration is carried in SIB 1), an RRC signaling S1 is generated, where S1 only includes 1-bit information indicating that the terminal has correctly received the TDD uplink and downlink configuration, and the SI may be an additional RRC message, or may reuse an existing RRC message and add a corresponding field parameter.
The terminal sends the data carrying the SI to the base station in a corresponding subframe, wherein the corresponding subframe also refers to an available uplink subframe and includes two layers of meanings: generally refers to a fixed uplink subframe or the same uplink subframe in the old-new TDD uplink-downlink configuration. The terminal should feed back the SI as early as possible, preferably, the SI is usually fed back on the latest available uplink subframe.
The terminal follows the old TDD uplink-downlink configuration before correctly receiving the system message (e.g., SIB 1) carrying the newly allocated TDD uplink-downlink configuration, and then follows the new TDD uplink-downlink configuration.
Scene two: the terminal feeds back the TDD uplink and downlink configuration currently used by the terminal by adopting RRC signaling.
After the terminal correctly receives the TDD uplink and downlink configuration newly allocated by the base station (for example, the TDD uplink and downlink configuration is carried in SIB 1), an RRC signaling S1 is generated, where S1 includes only 3 bits of information indicating the TDD uplink and downlink configuration currently used by the terminal, and the SI may be an additional RRC message, or may reuse an existing RRC message and add a corresponding field parameter.
The terminal sends the data carrying the SI to the base station in a corresponding subframe, wherein the corresponding subframe also refers to an available uplink subframe and includes two layers of meanings: generally refers to a fixed uplink subframe or the same uplink subframe in the old-new TDD uplink-downlink configuration. The terminal should feed back the SI as early as possible, preferably, the SI is usually fed back on the latest available uplink subframe.
The terminal follows the old TDD uplink-downlink configuration before correctly receiving the system message (e.g., SIB 1) carrying the newly allocated TDD uplink-downlink configuration, and then follows the new TDD uplink-downlink configuration.
Scene three: and the terminal feeds back the TDD uplink and downlink configuration correct receiving and receiving time by adopting RRC signaling.
After the terminal correctly receives the TDD uplink and downlink configuration newly allocated by the base station (for example, the TDD uplink and downlink configuration is carried in SIB 1), an RRC signaling S1 is generated, and S1 includes two contents respectively indicating the time when the terminal has correctly received the TDD uplink and downlink configuration and correctly received the TDD uplink and downlink configuration; the time for correct reception may refer to subframe number, radio frame number, or a combination of both; the SI may be an additional RRC message, or may reuse a currently existing RRC message and add a corresponding field parameter.
The terminal sends the data carrying the SI to the base station in a corresponding subframe, wherein the corresponding subframe also refers to an available uplink subframe and includes two layers of meanings: generally refers to a fixed uplink subframe or the same uplink subframe in the old-new TDD uplink-downlink configuration. The terminal should feed back the SI as early as possible, preferably, the SI is usually fed back on the latest available uplink subframe.
The terminal follows the old TDD uplink-downlink configuration before correctly receiving the system message (e.g., SIB 1) carrying the newly allocated TDD uplink-downlink configuration, and then follows the new TDD uplink-downlink configuration.
And fourthly, the terminal feeds back the TDD uplink and downlink configuration and the receiving time currently used by the terminal by adopting RRC signaling
After the terminal correctly receives the TDD uplink and downlink configuration newly allocated by the base station (for example, the TDD uplink and downlink configuration is carried in SIB 1), an RRC signaling S1 is generated, and S1 includes two contents respectively indicating the TDD uplink and downlink configuration currently used by the terminal and the correct receiving time; the time for correct reception may refer to a subframe number, a radio frame number, or a combination of the two, the SI may be an added RRC message, or may reuse a currently existing RRC message and add a corresponding field parameter.
The terminal sends the data carrying the SI to the base station in a corresponding subframe, wherein the corresponding subframe also refers to an available uplink subframe and includes two layers of meanings: generally refers to a fixed uplink subframe or the same uplink subframe in the old-new TDD uplink-downlink configuration. The terminal should feed back the SI as early as possible, preferably, the SI is usually fed back on the latest available uplink subframe.
The terminal follows the old TDD uplink-downlink configuration before correctly receiving the system message (e.g., SIB 1) carrying the newly allocated TDD uplink-downlink configuration, and then follows the new TDD uplink-downlink configuration.
Scene five: feedback TDD uplink and downlink configuration correct reception by MAC signaling
After the terminal correctly receives the newly allocated TDD uplink and downlink configuration, (for example, the TDD uplink and downlink configuration is carried in SIB 1), an MAC signaling is generated, where the MAC signaling may only include 1-bit information to indicate that the terminal has correctly received the TDD uplink and downlink configuration, and the MAC signaling may be an additional MAC message, or may reuse an existing MAC message and add a corresponding field parameter.
The terminal sends the data carrying the MSC signaling to the base station in a corresponding subframe, wherein the corresponding subframe also refers to an available uplink subframe and comprises two layers of meanings: generally refers to a fixed uplink subframe or the same uplink subframe in the old-new TDD uplink-downlink configuration. The terminal should feed back the MAC signaling as early as possible, preferably, the MAC signaling is usually fed back on the nearest available uplink subframe.
The terminal follows the old TDD uplink-downlink configuration before correctly receiving the system message (e.g., SIB 1) carrying the newly allocated TDD uplink-downlink configuration, and then follows the new TDD uplink-downlink configuration.
Scene six: the terminal feeds back the TDD uplink and downlink configuration currently used by the terminal by adopting the MAC signaling.
After the terminal correctly receives the TDD uplink and downlink configuration newly allocated by the base station (for example, the TDD uplink and downlink configuration is carried in SIB 1), an MAC signaling is generated, where the MAC signaling may only include 3-bit information to indicate the TDD uplink and downlink configuration currently used by the terminal, and the MAC signaling may be an additional MAC message, or may reuse the existing MAC message and add a corresponding field parameter.
The terminal sends the data carrying the MAC signaling to the base station in a corresponding subframe, wherein the corresponding subframe also refers to an available uplink subframe and comprises two layers of meanings: generally refers to a fixed uplink subframe or the same uplink subframe in the old-new TDD uplink-downlink configuration. The terminal should feed back the MAC signaling as early as possible, preferably, the MAC signaling is usually fed back on the nearest available uplink subframe.
The terminal follows the old TDD uplink-downlink configuration before correctly receiving the system message (e.g., SIB 1) carrying the newly allocated TDD uplink-downlink configuration, and then follows the new TDD uplink-downlink configuration.
Scene seven: the terminal adopts MAC signaling to feed back the correct receiving and receiving time of TDD uplink and downlink configuration
After the terminal correctly receives the TDD uplink and downlink configuration newly allocated by the base station (for example, the TDD uplink and downlink configuration is carried in SIB 1), an MAC signaling is generated, where the MAC CE includes two contents, which respectively indicate the time when the terminal has correctly received the TDD uplink and downlink configuration and correctly received the TDD uplink and downlink configuration; the time for correct reception may refer to subframe number, radio frame number, or a combination of both; the MAC signaling can be a newly added MAC message, or can reuse the current existing MAC message and newly add corresponding field parameters
The terminal sends the data carrying the MSC signaling to the base station in a corresponding subframe, wherein the corresponding subframe also refers to an available uplink subframe and comprises two layers of meanings: generally refers to a fixed uplink subframe or the same uplink subframe in the old-new TDD uplink-downlink configuration. The terminal should feed back the MAC signaling as early as possible, preferably, the MAC signaling is usually fed back on the nearest available uplink subframe.
The terminal follows the old TDD uplink-downlink configuration before correctly receiving the system message (e.g., SIB 1) carrying the newly allocated TDD uplink-downlink configuration, and then follows the new TDD uplink-downlink configuration.
And eighth scene: the terminal feeds back the TDD uplink and downlink configuration and receiving time currently used by the terminal by adopting the MAC signaling
After the terminal correctly receives the TDD uplink and downlink configuration newly allocated by the base station (for example, the TDD uplink and downlink configuration is carried in SIB 1), generating an MAC signaling, where the MAC signaling includes two contents, which respectively indicate the TDD uplink and downlink configuration currently used by the terminal and the correct receiving time; the time for correct reception may refer to subframe number, radio frame number, or a combination of both; the MAC signaling can be a newly added MAC message, or can reuse the current existing MAC message and newly add corresponding parameters
The terminal sends the data carrying the MSC signaling to the base station in a corresponding subframe, wherein the corresponding subframe also refers to an available uplink subframe and comprises two layers of meanings: generally refers to a fixed uplink subframe or the same uplink subframe in the old-new TDD uplink-downlink configuration. The terminal should feed back the MAC signaling as early as possible, preferably, the MAC signaling is usually fed back on the nearest available uplink subframe.
The terminal follows the old TDD uplink-downlink configuration before correctly receiving the system message (e.g., SIB 1) carrying the newly allocated TDD uplink-downlink configuration, and then follows the new TDD uplink-downlink configuration.
Scene nine: the terminal feeds back the TDD uplink and downlink configuration to be correctly received through a PUCCH (namely physical layer signaling), and the HARQ timing relation between transmission and feedback is agreed by a protocol.
Only after the terminal correctly receives the TDD uplink and downlink configuration (for example, the TDD uplink and downlink configuration is carried in SIB 1), the terminal may feed back ACK through PUCCH by using physical layer signaling, where the terminal correctly receives the TDD uplink and downlink configuration, which may be correctly received by the physical layer or correctly received by the RRC layer; the former means that the physical layer directly performs feedback once correctly receiving, and the latter means that the RRC layer triggers the physical layer to perform feedback after correctly receiving.
The feedback subframe (marked as subframe n) and the subframe (marked as subframe k) where the TDD uplink and downlink configuration which is correctly received are located meet the determined HARQ timing relationship, and the HARQ timing relationship is agreed by a protocol.
For example n = k +7, or n = k +17, or n = k + 12. N = k +7 does not consider the process of RRC signaling analysis performed by the terminal, so in general, when the base station receives the physical layer signaling carrying the feedback information at the corresponding location of the PUCCH, it needs to consider a period of delay and then make the newly allocated TDD uplink and downlink configuration take effect. n = k +17 or n = k +12 considers the time required by the terminal to perform RRC signaling analysis, and therefore, after the base station receives the physical layer signaling carrying the feedback signaling at the corresponding position of the PUCCH, it may be considered that the terminal has adopted the newly allocated TDD uplink and downlink configuration.
The PUCCH resource bearing the physical layer signaling is configured to the terminal by the base station through a high-level signaling, and the terminal does not need to feed back the TDD uplink and downlink configuration for correct receiving before the PUCCH resource is configured.
Generally, once the terminal correctly receives the newly allocated TDD uplink and downlink configuration, the terminal does not continue to detect the TDD uplink and downlink configuration. Therefore, in the TDD uplink/downlink configuration change period, the terminal only needs to feed back once, that is, only feeds back after correctly receiving the TDD uplink/downlink configuration for the first time, or in the TDD uplink/downlink configuration change period, the terminal may also correctly receive the TDD uplink/downlink configuration for the first time, and still feed back ACK data no matter whether detecting the TDD uplink/downlink configuration or not, where the number of times may be a number of times agreed with the base station, or may be until the next change period starts.
Scene ten: the terminal feeds back TDD uplink and downlink configuration to be correctly received through a PUCCH, and the HARQ time sequence relation between transmission and feedback is configured by a base station.
Only after the terminal correctly receives the TDD uplink and downlink configuration (for example, the TDD uplink and downlink configuration is carried in SIB 1), the terminal may feed back ACK through PUCCH by using physical layer signaling, where the terminal correctly receives the TDD uplink and downlink configuration, which may be correctly received by the physical layer or correctly received by the RRC layer; the former means that the physical layer directly performs feedback once correctly receiving, and the latter means that the RRC layer triggers the physical layer to perform feedback after correctly receiving.
And the feedback subframe (marked as a subframe n) and a subframe (marked as a subframe k) where the TDD uplink and downlink configuration which is correctly received are positioned meet the determined HARQ time sequence relation. The timing relationship is configured by the base station, e.g. n = k + l, l is signaled to the terminal by the base station through higher layer signaling.
The PUCCH resource bearing the physical layer signaling is configured to the terminal by the base station through a high-level signaling, and the terminal does not need to feed back the TDD uplink and downlink configuration for correct receiving before the PUCCH resource is configured.
Generally, once the terminal correctly receives the newly allocated TDD uplink and downlink configuration, the terminal does not continue to detect the TDD uplink and downlink configuration. Therefore, in the TDD uplink/downlink configuration change period, the terminal only needs to feed back once, that is, only feeds back after correctly receiving the TDD uplink/downlink configuration for the first time, or in the TDD uplink/downlink configuration change period, the terminal may also correctly receive the TDD uplink/downlink configuration for the first time, and still feed back ACK data no matter whether detecting the TDD uplink/downlink configuration or not, where the number of times may be a number of times agreed with the base station, or may be until the next change period starts.
Scene eleven: the terminal feeds back whether the TDD uplink and downlink configuration is correctly received through the PUCCH, and the HARQ time sequence relation between transmission and feedback is agreed by a protocol.
After the terminal receives the TDD uplink and downlink configuration, (e.g., the TDD uplink and downlink configuration is carried in SIB 1), the terminal uses physical layer signaling to feed back ACK or NACK through PUCCH, correctly receives the feedback ACK, and does not correctly receive the feedback NACK, where whether the terminal correctly receives the TDD uplink and downlink configuration may be whether the physical layer correctly receives or not, and may also be whether the RRC layer correctly receives or not; the former means to directly perform feedback according to the receiving state of the physical layer, and the latter means to trigger the feedback of the physical layer by the RRC layer according to the receiving state of the RRC layer.
The feedback subframe (marked as subframe n) and the subframe (marked as subframe k) where the TDD uplink and downlink configuration which is correctly received are located meet the determined HARQ timing relationship, and the HARQ timing relationship is agreed by a protocol.
For example n = k +7, or n = k +17, or n = k + 12. N = k +7 does not consider the process of RRC signaling analysis performed by the terminal, so in general, when the base station receives the physical layer signaling carrying the feedback information at the corresponding location of the PUCCH, it needs to consider a period of delay and then make the newly allocated TDD uplink and downlink configuration take effect. n = k +17 or n = k +12 considers the time required by the terminal to perform RRC signaling analysis, and therefore, after the base station receives the physical layer signaling carrying the feedback signaling at the corresponding position of the PUCCH, it may be considered that the terminal has adopted the newly allocated TDD uplink and downlink configuration.
The PUCCH resource bearing the physical layer signaling is configured to the terminal by the base station through a high-level signaling, and the terminal does not need to feed back the TDD uplink and downlink configuration for correct receiving before the PUCCH resource is configured.
Generally, once the terminal correctly receives the newly allocated TDD uplink and downlink configuration, the terminal does not continue to detect the TDD uplink and downlink configuration. Therefore, in the TDD uplink/downlink configuration change period, the terminal only needs to feed back once, that is, only feeds back after correctly receiving the TDD uplink/downlink configuration for the first time, or in the TDD uplink/downlink configuration change period, the terminal may also correctly receive the TDD uplink/downlink configuration for the first time, and still feed back ACK data no matter whether detecting the TDD uplink/downlink configuration or not, where the number of times may be a number of times agreed with the base station, or may be until the next change period starts.
Scene twelve: the terminal feeds back whether the TDD uplink and downlink configuration is correctly received through the PUCCH, and the HARQ time sequence relation between transmission and feedback is configured by the base station.
After the terminal receives the TDD uplink and downlink configuration, (e.g., the TDD uplink and downlink configuration is carried in SIB 1), the terminal uses physical layer signaling to feed back ACK or NACK through PUCCH, correctly receives the feedback ACK, and does not correctly receive the feedback NACK, where whether the terminal correctly receives the TDD uplink and downlink configuration may be whether the physical layer correctly receives or not, and may also be whether the RRC layer correctly receives or not; the former means to directly perform feedback according to the receiving state of the physical layer, and the latter means to trigger the feedback of the physical layer by the RRC layer according to the receiving state of the RRC layer.
And the feedback subframe (marked as a subframe n) and a subframe (marked as a subframe k) where the TDD uplink and downlink configuration which is correctly received are positioned meet the determined HARQ time sequence relation. The timing relationship is configured by the base station, e.g. n = k + l, l is signaled to the terminal by the base station through higher layer signaling.
The PUCCH resource bearing the physical layer signaling is configured to the terminal by the base station through a high-level signaling, and the terminal does not need to feed back the TDD uplink and downlink configuration for correct receiving before the PUCCH resource is configured.
Generally, once the terminal correctly receives the newly allocated TDD uplink and downlink configuration, the terminal does not continue to detect the TDD uplink and downlink configuration. Therefore, in the TDD uplink/downlink configuration change period, the terminal only needs to feed back once, that is, only feeds back after correctly receiving the TDD uplink/downlink configuration for the first time, or in the TDD uplink/downlink configuration change period, the terminal may also correctly receive the TDD uplink/downlink configuration for the first time, and still feed back ACK data no matter whether detecting the TDD uplink/downlink configuration or not, where the number of times may be a number of times agreed with the base station, or may be until the next change period starts.
In summary, in the embodiment of the present invention, after the base station allocates the latest TDD uplink and downlink configuration to the terminal, the terminal feeds back the receiving condition of the newly allocated TDD uplink and downlink configuration to the base station, and the base station and the terminal both refer to the receiving condition and select an appropriate TDD uplink and downlink configuration to control uplink and downlink transmission in the subsequent process, so that a situation that the base station side and the terminal side understand the TDD uplink and downlink configuration inconsistently does not exist, and a fuzzy period is avoided, so that the base station and the terminal can control uplink and downlink transmission according to the consistent TDD uplink and downlink configuration, thereby effectively ensuring the service quality of the system and improving the system performance.
On the other hand, in the time that the terminal completes the TDD uplink and downlink configuration conversion, if the base station does not schedule the terminal, the waiting time of the base station can be shortened by adopting the scheme of the invention, thereby effectively avoiding the waste of system resources and improving the resource utilization rate.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (28)
1. A transmission feedback method for TDD uplink and downlink configuration is characterized by comprising the following steps:
the base station determines newly allocated TDD uplink and downlink configuration for the terminal and informs the newly allocated TDD uplink and downlink configuration to the terminal;
and the base station adopts the corresponding TDD uplink and downlink configuration to control uplink and downlink transmission according to the receiving condition of the newly allocated TDD uplink and downlink configuration fed back by the terminal.
2. The method of claim 1, wherein a base station receives the reception condition of the newly allocated TDD uplink and downlink configuration fed back by a terminal through physical layer signaling or higher layer signaling.
3. The method of claim 2, wherein the base station receives the reception condition of the newly allocated TDD uplink and downlink configuration fed back by the terminal through physical layer signaling, and the method comprises:
the base station receives a correct response ACK (acknowledgement) fed back by the terminal and indicating that the newly allocated TDD uplink and downlink configuration is correctly received through a physical layer signaling carried on a Physical Uplink Control Channel (PUCCH), or,
and the base station receives ACK (acknowledgement character) which indicates that the newly allocated TDD uplink and downlink configuration is correctly received or NACK (negative acknowledgement character) which indicates that the newly allocated TDD uplink and downlink configuration is not correctly received, fed back by the terminal through a physical layer signaling carried on the PUCCH.
4. The method of claim 3, wherein a resource location occupied by the physical layer signaling on the PUCCH is signaled to a terminal by a base station through higher layer signaling.
5. The method of claim 3, wherein the base station informs the terminal of the HARQ timing relationship between the newly allocated TDD UL/DL configuration and the terminal feedback physical layer signaling, which is pre-agreed by the base station and the terminal, or configured by the base station to the terminal.
6. The method of claim 2, wherein the base station receives the reception condition of the newly allocated TDD uplink and downlink configuration fed back by the terminal through higher layer signaling, and the method comprises:
the base station receives ACK (acknowledgement) which is fed back by the terminal and indicates that newly allocated TDD uplink and downlink configuration is correctly received through Media Access Control (MAC) signaling or Radio Resource Control (RRC) signaling; or,
the base station receives ACK (acknowledgement character) which indicates that the newly allocated TDD uplink and downlink configuration is correctly received or NACK (negative acknowledgement character) which indicates that the newly allocated TDD uplink and downlink configuration is not correctly received, fed back by the terminal through MAC (media access control) signaling or RRC (radio resource control) signaling, or,
and the base station receives the identifier of the TDD uplink and downlink configuration currently used by the terminal, which is fed back by the terminal, through the MAC signaling or the RRC signaling.
7. The method of claim 6, wherein after receiving the receiving condition of the newly allocated TDD uplink and downlink configuration fed back by the terminal through the high layer signaling, the base station further obtains time information for the terminal to receive the newly allocated TDD uplink and downlink configuration in the high layer signaling.
8. The method according to any one of claims 1 to 7, wherein the base station controls uplink and downlink transmission by using the corresponding TDD uplink and downlink configuration according to the reception condition of the newly allocated TDD uplink and downlink configuration fed back by the terminal, including:
if the base station determines that the terminal has correctly received the newly allocated TDD uplink and downlink configuration according to the feedback of the terminal, the newly allocated TDD uplink and downlink configuration is adopted to control the subsequent uplink and downlink transmission;
and if the base station determines that the terminal does not correctly receive the newly allocated TDD uplink and downlink configuration according to the feedback of the terminal, continuing to adopt the currently used TDD uplink and downlink configuration to control the subsequent uplink and downlink transmission.
9. A transmission feedback method for TDD uplink and downlink configuration is characterized by comprising the following steps:
the terminal receives the newly allocated TDD uplink and downlink configuration of the base station and feeds back the receiving condition of the newly allocated TDD uplink and downlink configuration to the base station;
and the terminal adopts the corresponding TDD uplink and downlink configuration to control uplink and downlink transmission according to the receiving condition of the newly allocated TDD uplink and downlink configuration.
10. The method of claim 9, wherein the terminal feeds back the reception status of the newly allocated TDD uplink and downlink configuration to the base station through physical layer signaling or higher layer signaling.
11. The method of claim 10, wherein the terminal feeds back the reception status of the newly allocated TDD uplink and downlink configuration to the base station through physical layer signaling, and the method comprises:
feeding back a correct response ACK (acknowledgement) indicating that the newly allocated TDD uplink and downlink configuration is correctly received to the base station through physical layer signaling carried on a Physical Uplink Control Channel (PUCCH), or,
and feeding back ACK (acknowledgement character) indicating that the newly allocated TDD uplink and downlink configuration is correctly received or error response NACK (negative acknowledgement character) indicating that the newly allocated TDD uplink and downlink configuration is not correctly received to the base station through physical layer signaling carried on the PUCCH for sending.
12. The method of claim 11, wherein a resource location occupied by the physical layer signaling on the PUCCH is signaled by a base station to a terminal through higher layer signaling.
13. The method of claim 11, wherein the base station informs the terminal of the HARQ timing relationship between the newly allocated TDD uplink and downlink configuration and the terminal feedback physical layer signaling, which is pre-agreed by the base station and the terminal, or configured by the base station to the terminal.
14. The method of claim 10, wherein the terminal feeds back the reception status of the newly allocated TDD uplink and downlink configuration to the base station through higher layer signaling, and the method comprises:
the terminal feeds back ACK (acknowledgement) indicating that newly allocated TDD uplink and downlink configuration is correctly received to the base station through Media Access Control (MAC) signaling or Radio Resource Control (RRC) signaling; or,
the terminal feeds back ACK indicating that the newly allocated TDD uplink and downlink configuration is correctly received or NACK indicating that the newly allocated TDD uplink and downlink configuration is not correctly received to the base station through MAC signaling or RRC signaling, or,
the terminal feeds back the identifier of the TDD uplink and downlink configuration currently used by the terminal to the base station through the MAC signaling or the RRC signaling.
15. The method of claim 9, wherein the terminal further carries time information for the terminal to receive the newly allocated TDD uplink/downlink configuration in the higher layer signaling while carrying the reception condition of the newly allocated TDD uplink/downlink configuration in the higher layer signaling.
16. The method according to any of claims 9-15, wherein the terminal uses the corresponding TDD uplink/downlink configuration to control uplink/downlink transmission according to the receiving condition of the newly allocated TDD uplink/downlink configuration, including:
if the terminal has correctly received the newly allocated TDD uplink and downlink configuration, the newly allocated TDD uplink and downlink configuration is adopted to control the subsequent uplink and downlink transmission;
and if the terminal does not correctly receive the newly allocated TDD uplink and downlink configuration, continuing to adopt the currently used TDD uplink and downlink configuration to control subsequent uplink and downlink transmission.
17. A transmission feedback device for TDD uplink and downlink configuration is characterized by comprising:
the first processing unit is used for determining newly allocated TDD uplink and downlink configuration for the terminal and informing the newly allocated TDD uplink and downlink configuration to the terminal;
and the second processing unit is used for controlling uplink and downlink transmission by adopting corresponding TDD uplink and downlink configuration according to the receiving condition of the newly allocated TDD uplink and downlink configuration fed back by the terminal.
18. The apparatus of claim 17, wherein the first processing unit receives a reception status of the newly allocated TDD uplink and downlink configuration fed back by a terminal through physical layer signaling or higher layer signaling.
19. The apparatus as claimed in claim 18, wherein said first processing unit is specifically configured to:
receiving a correct response ACK (acknowledgement character) fed back by a terminal and indicating that newly allocated TDD uplink and downlink configuration is correctly received through a physical layer signaling carried on a Physical Uplink Control Channel (PUCCH); or,
and receiving ACK (acknowledgement character) fed back by the terminal and indicating that the newly allocated TDD uplink and downlink configuration is correctly received or error response NACK (negative acknowledgement character) indicating that the newly allocated TDD uplink and downlink configuration is not correctly received through physical layer signaling carried on the PUCCH and sent.
20. The apparatus as claimed in claim 18, wherein said first processing unit is specifically configured to:
receiving ACK (acknowledgement character) fed back by a terminal and indicating that newly allocated TDD uplink and downlink configuration is correctly received through Media Access Control (MAC) signaling or Radio Resource Control (RRC) signaling; or,
receiving ACK (acknowledgement) fed back by the terminal and indicating that the newly allocated TDD uplink and downlink configuration is correctly received or NACK (negative acknowledgement) fed back by the terminal and indicating that the newly allocated TDD uplink and downlink configuration is not correctly received through MAC (media access control) signaling or RRC (radio resource control) signaling, or,
and receiving the identifier of the TDD uplink and downlink configuration currently used by the terminal fed back by the terminal through MAC signaling or RRC signaling.
21. The apparatus of claim 20, wherein the first processing unit further obtains time information for the terminal to receive the newly allocated TDD uplink and downlink configuration in the higher layer signaling after receiving a reception condition of the newly allocated TDD uplink and downlink configuration fed back by the terminal through the higher layer signaling.
22. The apparatus according to any of claims 17-21, wherein the second processing unit is specifically configured to:
if the terminal is determined to correctly receive the newly allocated TDD uplink and downlink configuration according to the feedback of the terminal, adopting the newly allocated TDD uplink and downlink configuration to control subsequent uplink and downlink transmission;
and if the terminal does not correctly receive the newly allocated TDD uplink and downlink configuration according to the feedback of the terminal, continuing to adopt the currently used TDD uplink and downlink configuration to control the subsequent uplink and downlink transmission.
23. A transmission feedback device for TDD uplink and downlink configuration is characterized by comprising:
the communication unit is used for receiving the newly allocated TDD uplink and downlink configuration of the base station and feeding back the receiving condition of the newly allocated TDD uplink and downlink configuration to the base station;
and the control unit is used for adopting the corresponding TDD uplink and downlink configuration to control uplink and downlink transmission according to the receiving condition of the newly allocated TDD uplink and downlink configuration.
24. The apparatus of claim 23, wherein the communication unit feeds back the reception of the newly allocated TDD uplink and downlink configuration to a base station through physical layer signaling or higher layer signaling.
25. The apparatus as recited in claim 24, wherein said communication unit is specifically configured to:
feeding back a correct response ACK (acknowledgement) indicating that the newly allocated TDD uplink and downlink configuration is correctly received to the base station through physical layer signaling carried on a Physical Uplink Control Channel (PUCCH), or,
and feeding back ACK (acknowledgement character) indicating that the newly allocated TDD uplink and downlink configuration is correctly received or error response NACK (negative acknowledgement character) indicating that the newly allocated TDD uplink and downlink configuration is not correctly received to the base station through physical layer signaling carried on the PUCCH for sending.
26. The apparatus as recited in claim 24, wherein said communication unit is specifically configured to:
feeding back ACK (acknowledgement character) indicating that newly allocated TDD uplink and downlink configuration is correctly received to a base station through Media Access Control (MAC) signaling or Radio Resource Control (RRC) signaling; or,
feeding back ACK indicating that the newly allocated TDD uplink and downlink configuration is correctly received or NACK indicating that the newly allocated TDD uplink and downlink configuration is not correctly received to the base station through MAC signaling or RRC signaling, or,
and feeding back the identifier of the TDD uplink and downlink configuration currently used by the terminal to the base station through MAC signaling or RRC signaling.
27. The apparatus of claim 26, wherein the communication unit further carries time information for a terminal to receive the newly allocated TDD uplink/downlink configuration in the higher layer signaling while carrying the reception condition of the newly allocated TDD uplink/downlink configuration in the higher layer signaling.
28. The apparatus according to any one of claims 23 to 27, wherein the control unit is specifically configured to:
if the newly allocated TDD uplink and downlink configuration is correctly received, the newly allocated TDD uplink and downlink configuration is adopted to control the subsequent uplink and downlink transmission;
and if the newly allocated TDD uplink and downlink configuration is not correctly received, continuing to adopt the currently used TDD uplink and downlink configuration to control subsequent uplink and downlink transmission.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210226753.5A CN103516490A (en) | 2012-06-29 | 2012-06-29 | TDD uplink/downlink configuration transmission feedback method and device |
| PCT/CN2013/078372 WO2014000689A1 (en) | 2012-06-29 | 2013-06-28 | Transmission feedback method and device for tdd uplink and downlink configuration |
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| CN201210226753.5A CN103516490A (en) | 2012-06-29 | 2012-06-29 | TDD uplink/downlink configuration transmission feedback method and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016131235A1 (en) * | 2015-02-17 | 2016-08-25 | 华为技术有限公司 | Information transmission method, user equipment and base station |
| WO2017120803A1 (en) * | 2016-01-13 | 2017-07-20 | Lenovo Innovations Limited (Hong Kong) | Bidirectional subframe communication |
| WO2018218688A1 (en) * | 2017-06-02 | 2018-12-06 | 华为技术有限公司 | Method, device, and system for dynamic time adjustment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11700085B2 (en) | 2018-08-10 | 2023-07-11 | Beijing Xiaomi Mobile Software Co., Ltd. | Method and apparatus for transmitting response information on feedback resources |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100195587A1 (en) * | 2009-02-05 | 2010-08-05 | Motorola, Inc. | Method for uplink acknowledgement/non-acknowledgement messages in a wireless communication system |
| CN101882982A (en) * | 2009-05-04 | 2010-11-10 | 大唐移动通信设备有限公司 | Method and equipment for feeding back and processing ACK/NACK information |
| CN101925188A (en) * | 2009-06-16 | 2010-12-22 | 中兴通讯股份有限公司 | Method and device for transmitting downlink feedback information for trunk link |
| CN102083211A (en) * | 2010-03-29 | 2011-06-01 | 大唐移动通信设备有限公司 | Determining method and equipment of uplink control channel resources |
| CN102164029A (en) * | 2011-04-29 | 2011-08-24 | 电信科学技术研究院 | Method and device for transmitting ACK (acknowledgement)/NACK (negative acknowledgement) feedback information |
| CN102281099A (en) * | 2011-08-08 | 2011-12-14 | 电信科学技术研究院 | Method, system and equipment for transmitting data in time division duplex (TDD) radio frame |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494866A (en) * | 2008-01-25 | 2009-07-29 | 中兴通讯股份有限公司 | Notification method and system for down feedback physical channel of uplink reinforced CELL-FACH |
| CN101827448A (en) * | 2009-03-05 | 2010-09-08 | 中兴通讯股份有限公司 | Method, relay station and terminal for transmitting feedback information |
-
2012
- 2012-06-29 CN CN201210226753.5A patent/CN103516490A/en active Pending
-
2013
- 2013-06-28 WO PCT/CN2013/078372 patent/WO2014000689A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100195587A1 (en) * | 2009-02-05 | 2010-08-05 | Motorola, Inc. | Method for uplink acknowledgement/non-acknowledgement messages in a wireless communication system |
| CN101882982A (en) * | 2009-05-04 | 2010-11-10 | 大唐移动通信设备有限公司 | Method and equipment for feeding back and processing ACK/NACK information |
| CN101925188A (en) * | 2009-06-16 | 2010-12-22 | 中兴通讯股份有限公司 | Method and device for transmitting downlink feedback information for trunk link |
| CN102083211A (en) * | 2010-03-29 | 2011-06-01 | 大唐移动通信设备有限公司 | Determining method and equipment of uplink control channel resources |
| CN102164029A (en) * | 2011-04-29 | 2011-08-24 | 电信科学技术研究院 | Method and device for transmitting ACK (acknowledgement)/NACK (negative acknowledgement) feedback information |
| CN102281099A (en) * | 2011-08-08 | 2011-12-14 | 电信科学技术研究院 | Method, system and equipment for transmitting data in time division duplex (TDD) radio frame |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016131235A1 (en) * | 2015-02-17 | 2016-08-25 | 华为技术有限公司 | Information transmission method, user equipment and base station |
| CN105991251A (en) * | 2015-02-17 | 2016-10-05 | 华为技术有限公司 | Information transmission method, user equipment and base station |
| CN105991251B (en) * | 2015-02-17 | 2019-06-21 | 华为技术有限公司 | Method, user equipment and the base station of information transmission |
| US10454630B2 (en) | 2015-02-17 | 2019-10-22 | Huawei Technologies Co., Ltd. | Information transmission method, and user equipment and base station |
| WO2017120803A1 (en) * | 2016-01-13 | 2017-07-20 | Lenovo Innovations Limited (Hong Kong) | Bidirectional subframe communication |
| CN108463962A (en) * | 2016-01-13 | 2018-08-28 | 联想创新有限公司（香港) | Bidirectional subframe communication |
| WO2018218688A1 (en) * | 2017-06-02 | 2018-12-06 | 华为技术有限公司 | Method, device, and system for dynamic time adjustment |
| US11088794B2 (en) | 2017-06-02 | 2021-08-10 | Huawei Technologies Co., Ltd. | Dynamic time assignment method, apparatus, and system |
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| WO2014000689A1 (en) | 2014-01-03 |
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