CN101436982B - Method for sending and receiving control information and apparatus, transmission system thereof - Google Patents

Abstract

The invention discloses a method for sending control information, which includes the steps of: when sending the last data information not earlier than each activation period, sending indication information for indicating the arrival of the silent period; when the next activation period arrives, generating the The control information of the activation period: when the first data information is sent no later than the activation period, the generated control information is sent on the corresponding control channel. At the same time, a method for receiving control information is disclosed, including the steps of: judging whether the indication information for indicating the arrival of the silent period is received; and switching to the corresponding control channel when receiving the indication information for indicating the arrival of the silent period Monitor and receive control information for the next activation period. Correspondingly, the invention also discloses a control information sending and receiving device and a control information transmission system. By adopting the solution of the invention, the overhead of control information can be effectively reduced, thereby increasing the system capacity; and the energy consumption of the receiving end can be saved.

Description

Control information sending and receiving method and its device, transmission system

technical field

The invention relates to the communication field, in particular to a control information sending and receiving method, device and transmission system.

Background technique

With the rapid development of information technology, people's life is increasingly inseparable from various services provided by the Internet. People hope to obtain convenient Internet services at any place and any time, which is the so-called ever-online concept. The best way to realize this goal is to bear the weight of the packet domain of the wireless network.

When voice (or similar services) are carried in the packet domain, since the voice frame is usually very small, and the voice service is very sensitive to delay, delay jitter and data error rate, it is required that the voice frame must be transmitted in time without Multiple speech frames are concatenated and then transmitted. However, if the transmission of each voice frame is accompanied by control information, the overhead of the control information will be very large relative to the voice payload (the specific overhead ratio depends on the system implementation). Therefore, in order to improve the effectiveness and reliability of carrying voice services in the packet domain, one of the most direct and effective methods is to reduce the overhead of control information as much as possible on the premise of ensuring the quality of voice services.

At present, there are mainly two types of schemes for reducing control information overhead, one is a grouping (Grouping) scheme, and the other is a semi-static scheduling scheme. The two types of prior art solutions are introduced respectively below.

Grouping scheme:

The core idea of this scheme is to group users, and several users belonging to the same group based on Voice over IP transmission (VoIP, Voice over IP) time-division multiplex the same piece of physical layer resources, that is, statistical multiplexing only uses the same piece of physical layer resources. Layer resources are carried out between different users, and the specific resource allocation of each user depends on layer 3 signaling for pre-allocation; this scheme does not use adaptive coding and modulation (AMC) technology, but uses fixed modulation/coding (MCS) scheme Perform data transmission; and adopt synchronous hybrid automatic repeat request (HARQ) technology and fixed redundancy version sequence.

Since multiple users time-division multiplex the same physical layer resource in the Grouping scheme, when this method is applied to the High Speed Downlink Packet Access (HSDPA, High Speed Downlink Packet Access) system, it is necessary to share the high-speed downlink in the existing HSDPA The structure (frame format) of the channel (HS-DSCH, High SpeedDownlink Shared Channel) is modified to distinguish the target receivers of HS-DSCH. In addition, to group users in advance, additional layer 3 signaling needs to be added to configure the grouping and resource pre-allocation.

Since the Grouping scheme uses a fixed MCS, even if the user channel is poor, there is no chance to change the MCS, resulting in a large data error rate, an increase in the system outage probability (Outage), and a decrease in capacity; The MCS of this user cannot be increased, and the resources occupied by this user cannot be dynamically allocated to other users, and the system capacity cannot be increased.

Semi-static scheduling scheme:

In this scheme, asynchronous HARQ is adopted, the first transmission of each data packet adopts fixed resource allocation, and the retransmission adopts a dynamic scheduling method. That is, resources need to be reserved for each user in the active period every 20ms (the time interval between two consecutive voice frames). If a data packet transmission error occurs, it is necessary to remove these resources reserved for the first transmission. Find suitable resources for retransmission, and retransmission needs to send control information.

When the semi-static scheduling scheme is applied to the HSDPA system, it also needs to make major changes to the existing HSDPA system protocol. In addition, since the user also needs to be notified of the first transmission resource information in advance, additional layer 3 signaling needs to be added for implementation.

The gain of reducing the control information overhead of the semi-persistent scheduling scheme depends on the retransmission ratio. If the channel is poor and the retransmission ratio is high, the downlink control overhead will increase because the retransmission requires dynamic scheduling, resulting in a rapid decline in system capacity. In addition, if AMC is not used for the first transmission of fixed resources, there will be either a high probability of error or a waste of resources.

To sum up, the solutions for reducing control information in the prior art have the problems of high probability of transmission errors and failure to improve system capacity.

Contents of the invention

The technical problem to be solved by the embodiments of the present invention is to provide a method for sending control information, so as to effectively reduce control information overhead and improve system capacity.

Correspondingly, the embodiment of the present invention also provides a method for receiving control information, its corresponding sending and receiving device, and a system for transmitting control information.

The control information sending method proposed by the embodiment of the present invention includes the steps of: when sending the last data information not earlier than each activation period, sending indication information for indicating the arrival of the silent period; when the next activation period arrives, generating the indication information The control information of the activation period: when the first data information is sent no later than the activation period, the generated control information is sent on the corresponding control channel.

The control information receiving method proposed by the embodiment of the present invention includes the steps of: judging whether the indication information indicating the arrival of the silent period is received; and switching to the corresponding control channel when receiving the indication information indicating the arrival of the silent period Monitor and receive control information for the next activation period.

The control information sending device proposed by the embodiment of the present invention includes: a first indication information sending unit, configured to send indication information for indicating the arrival of the silent period when the last data information of each activation period is sent no earlier than; The information generation unit is used to generate the control information of the activation period when the next activation period arrives; the control information sending unit is used to send the generated control information no later than the first data information of the activation period sent on the corresponding control channel.

The control information receiving device proposed by the embodiment of the present invention includes: a first indication information judging unit, configured to judge whether the indication information indicating the arrival of the silent period is received; a switching receiving unit, configured to receive the indication information indicating the arrival of the silent period When the indication information arrives, switch to the corresponding control channel to monitor and receive the control information of the next activation period.

The control information sending method proposed by the embodiment of the present invention includes the steps of: when sending the last data message not earlier than each activation period, sending indication information for indicating the arrival of the silent period; when the next activation period arrives, judging the Whether the control information of the activation period needs to be changed relative to the control information sent last in the previous activation period; if so, generate the control information of the activation period; and when the first data information of the activation period is sent, the generated The control information is sent on the corresponding control channel; otherwise, when the first data information is sent no later than the activation period, the instruction information for instructing the receiving end to receive the data information is sent.

The control information receiving method proposed by the embodiment of the present invention includes the steps of: judging whether the indication information indicating the arrival of the silent period is received; and switching to the corresponding control channel when receiving the indication information indicating the arrival of the silent period Monitoring and receiving the control information of the next activation period; judging whether the indication information for instructing the receiving end to receive data information is received; and when receiving the indication information for instructing the receiving end to receive data information, based on the next activation The last control information received in the previous activation period of the period is switched to the traffic channel to receive the data information of the next activation period.

The control information sending device proposed by the embodiment of the present invention includes: a first indication information sending unit, configured to send indication information for indicating the arrival of the silent period when the last data information of each activation period is sent no earlier than; A judging unit, used to judge whether the control information of the activation period needs to be changed relative to the control information sent last in the previous activation period when the next activation period arrives; the control information generating unit is used to generate the activation period of control information; the control information sending unit is used to send the generated control information on the corresponding control channel when the first data information is sent no later than the activation period; the second indication information sending unit is used to When there is no need to change, when the first data message is sent no later than the activation period, the instruction information for instructing the receiving end to receive the data information is sent.

The control information receiving device proposed by the embodiment of the present invention includes: a first indication information judging unit, configured to judge whether the indication information indicating the arrival of the silent period is received; a switching receiving unit, configured to receive the indication information indicating the arrival of the silent period When the indication information arrives, switch to the corresponding control channel to monitor and receive the control information of the next activation period; the second indication information judging unit is used to judge whether the indication information for instructing the receiving end to receive data information is received; When the switching receiving unit receives the indication information for instructing the receiving end to receive data information, it switches to the corresponding traffic channel to receive the next activation based on the last received control information in the previous activation period of the next activation period. Period data information.

The control information transmission system proposed by the embodiment of the present invention includes a control information sending device and a control information receiving device, and the control information sending device includes:

The first indication information sending unit is used to send the indication information for indicating the arrival of the silent period when the last data information is sent not earlier than each activation period; the control information generation unit is used for when the next activation period arrives, Generate the control information of the activation period; the control information sending unit is configured to send the generated control information on the corresponding control channel no later than when the first data information of the activation period is sent;

The control information receiving device includes: a first indication information judging unit, configured to determine whether the indication information indicating the arrival of the silent period is received; a switching receiving unit, configured to receive the indication information indicating the arrival of the silent period , switch to the corresponding control channel to monitor and receive the control information of the next activation period.

The control information transmission system proposed by the embodiment of the present invention includes a control information sending device and a control information receiving device, and the control information sending device includes:

The first indication information sending unit is used to send the indication information used to indicate the arrival of the silent period when the last data information is sent not earlier than each activation period; the first judgment unit is used to send when the next activation period arrives, Judging whether the control information of the activation period needs to be changed relative to the control information sent last in the previous activation period; the control information generating unit is used to generate the control information of the activation period when it needs to be changed; the control information sending unit is used for No later than when the first data message is sent during the activation period, the generated control information is sent on the corresponding control channel; the second indication information sending unit is used to send the generated control information no later than the activation period when no change is required. When sending the first data message in the period, send the indication information used to instruct the receiving end to receive the data message;

The control information receiving device includes: a first indication information judging unit, configured to determine whether the indication information indicating the arrival of the silent period is received; a switching receiving unit, configured to receive the indication information indicating the arrival of the silent period , switch to the corresponding control channel to monitor and receive the control information of the next activation period. The second indication information judging unit is used to judge whether the indication information for instructing the receiving end to receive data information is received; when the switching receiving unit receives the indication information for instructing the receiving end to receive data information, based on the following The last control information received in the previous activation period of an activation period is switched to the corresponding traffic channel to receive the data information of the next activation period.

The method for sending control information proposed by the embodiment of the present invention notifies the receiving end of the resources occupied by the service during this activation period and the corresponding For MCS information, no new control information will be resent before the transition point from the next silent period to the active period, or new control information will be resent only when the MCS or resource allocation method needs to be adjusted, so that the control information overhead is reduced, thereby improving the system capacity .

Another method for sending control information proposed by the embodiment of the present invention judges whether it is necessary to adjust the MCS or resource allocation mode after the transition from the silent period to the active period and no later than when the first data information is sent, and sends it if necessary. New control information, inform the receiving end of the resources occupied by the service during this activation period and the corresponding MCS information, otherwise no new control information will be sent, but the indication information used to instruct the receiving end to receive data information; in the next silent period until activation No new control information is resent before the transition point, or new control information is resent only when the MCS or resource allocation mode needs to be adjusted, so that the control information overhead is reduced, thereby improving the system capacity.

The control information receiving method proposed by the embodiment of the present invention notifies the receiving end of the arrival of the silent period, or informs the receiving end that it is ready to receive new control information, by means of an explicit indication from the sending end. The receiving end does not need to monitor the control channel or the traffic channel all the time, thereby saving the energy consumption of the receiving end.

Description of drawings

FIG. 1 is a schematic diagram of a method for sending control information proposed in an embodiment of the present invention;

FIG. 2 is a flow chart of sending and receiving control information proposed by Embodiment 1 of the present invention;

FIG. 3 is a flow chart of sending and receiving control information of the receiving end monitoring mode proposed in Embodiment 2 of the present invention;

Fig. 4 shows the transmission method proposed by Embodiment 2 of the present invention Flowchart of sending and receiving control information in the display mode;

FIG. 5 is a flow chart of sending and receiving control information proposed in Embodiment 3 of the present invention;

FIG. 6 is a flow chart of sending and receiving control information proposed in Embodiment 4 of the present invention;

FIG. 7 is a schematic structural diagram of a first control information sending device proposed by an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a first device for receiving control information proposed by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a second control information sending device proposed by an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a second control information receiving device proposed by an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a control information transmission system proposed by an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of another control information transmission system proposed by an embodiment of the present invention.

Detailed ways

Since there is no contact between the receiving end and the sending end during the silent period, the wireless channel may change greatly. Therefore, the first technical solution for the transmission of control information proposed in the embodiment of the present invention is: after the transition from the silent period to the active period, No later than when the first data message is sent, send control information to inform the receiving end of the resources occupied by the service during this activation period and the corresponding MCS information, and no more control information can be sent before the transition point from the next silent period to the activation period;

Considering that the wireless channel has time-varying characteristics, the system should have the ability to dynamically adjust the corresponding MCS information or resource allocation method according to channel changes, so the embodiment of the present invention proposes a second technical solution for controlling information transmission: when the silent period expires After the activation period transition, no later than when the first data message is sent, send control information to inform the receiving end of the resources occupied by the service during this activation period and the corresponding MCS information, and only need to be adjusted before the next silent period to the transition point of the activation period When the corresponding MCS or resource allocation mode is used, the new control information is resent;

On the basis of the first technical solution proposed by the embodiment of the present invention, considering that after the transition from the silent period to the active period, the MCS and resource allocation method may be consistent with the resource occupied by the service in the previous active period and the corresponding MCS, then in order To further reduce the control information, the embodiment of the present invention proposes a third technical solution for the transmission of control information: when the first data packet is transmitted after the transition from the silent period to the active period, first determine whether the corresponding MCS or resource allocation method needs to be adjusted , if adjustment is required, the adjusted control information is resent, otherwise no control information is sent, but indication information for instructing the receiving end to receive data information is sent. No more control information may be sent until the next transition point from the silent period to the active period.

The fourth technical solution for sending control information proposed by the embodiment of the present invention is: after the transition from the silent period to the active period, no later than when the first data information is sent, first determine whether it is necessary to adjust the corresponding MCS or resource allocation mode, if If adjustment is required, the adjusted control information is resent; otherwise, control information is not sent, but indication information for instructing the receiving end to receive data information is sent. When it is necessary to adjust the MCS or the resource allocation mode before the transition point from the next silent period to the active period, the adjusted control information is resent, otherwise the control information may not be sent again.

Each technical solution for sending control information based on the above-mentioned embodiments of the present invention corresponds to two receiving solutions for control information.

The first scheme for receiving control information is: the receiving end monitors the control channel and the traffic channel at all times, and once valid control information is received, it receives data information on the corresponding traffic channel according to the latest control information received on the control channel, Otherwise, the data information is still received on the corresponding traffic channel according to the original control information.

In order to save the energy consumption of the receiving end (especially for the downlink, the user terminal is the receiving end), the embodiment of the present invention proposes another technical solution for controlling information reception, that is, the sending end explicitly notifies the receiving end that the silent period is coming or Informs that it is ready to receive new control information. The receiving end usually only receives the data information on the traffic channel. Once the receiving end receives the indication information explicitly notifying the arrival of the silent period from the sending end, it transfers from receiving data information to the control channel to monitor and receive the control information of the next activation period; Or once the receiving end receives the indication information explicitly notified by the sending end that it is ready to receive new control information, it also transfers from receiving data information to the control channel to monitor and receive new control information. When the receiving end correctly receives the control information from the control channel, it switches back to the service channel to continue receiving data information. When the receiving end receives the indication information explicitly notified by the sending end that it is ready to receive data information, it switches from monitoring and receiving control information on the control channel to receiving data information on the traffic channel.

The specific implementation manners of the present invention will be described below in conjunction with the accompanying drawings.

FIG. 1 shows a schematic diagram of a method for sending control information proposed by an embodiment of the present invention.

The transmission process of the data packet in the first activation period shown in FIG. 1 is a good illustration of the first technical solution for sending control information proposed by the embodiment of the present invention. The specific process of the transmission of the data packet in the first activation period shown in the figure is as follows:

1# data packet is the first data packet of the first activation period shown in the figure. When transmitting this data packet, control information can also be sent before the first data information is transmitted to inform the receiving end of this activation The MCS and resource allocation used during the period, and no control information can be sent before the next transition point from the silent period to the active period, and all data packets use the same resource and MCS mode as the first data packet. The retransmission adopts the synchronous HARQ method. As shown in Figure 1, the first retransmission of the 2# data packet occurs after two transmission intervals (TTIs) from the first transmission, and the second retransmission occurs after five TTIs from the first transmission. happened after.

The transmission process of the data packet in the second activation period shown in FIG. 1 is a good illustration of the second technical solution for sending control information proposed by the embodiment of the present invention. The specific process of data packet transmission in the second activation period shown in the figure is as follows:

The 7# data packet is the first data packet of the second activation period shown in the figure. When transmitting this data packet, it is also possible to send control information before the first data information is transmitted, and switch from the silent period to If it is necessary to change the MCS or resource allocation before the conversion point of the activation period, send new control information again. For example, when the 8# data packet is transmitted, the MCS or resource allocation needs to be changed, so new control information needs to be sent again, and the subsequent When the 9# data packet is transmitted, because there is no need to change the MCS and resource allocation, the control information is no longer sent, but the same MCS and resource allocation method as the 8# data packet is transmitted.

The third technical solution for sending control information proposed by the embodiment of the present invention can also be described by using the transmission process of the data packet in the first activation period shown in FIG. 1 . The specific process of data packet transmission in the first activation period shown in the figure is as follows:

The 1# data packet is the first data packet in the first activation period shown in the figure. When transmitting this data packet, before the first data information is transmitted, it is possible to first judge the resources that the business needs to occupy in this activation period and the corresponding Whether the MCS in the previous activation period is consistent with that in the previous activation period. If not, when transmitting the 1# data packet or before transmitting the 1# data packet, send the corresponding control generated according to the resources that the business needs to occupy in the current activation period and the corresponding MCS information; if they are consistent, when the 1# data packet is transmitted, the control information is no longer sent, but the indication information for instructing the receiving end to receive the data information is sent (this indication information is not shown in the figure).

The fourth technical solution for sending control information proposed by the embodiment of the present invention can also be described by using the transmission process of the data packet in the second activation period shown in FIG. 1 . The specific process of data packet transmission in the second activation period shown in the figure is as follows:

The 7# data packet is the first data packet in the second activation period shown in the figure. When transmitting this data packet, before the first data information is transmitted, first judge whether it is necessary to change the MCS or resource allocation method. If necessary , then when sending the 7# data packet or before transmitting the 7# data packet, send the corresponding control information generated according to the resource occupied by the service in this activation period and the corresponding MCS; if when sending the 7# data packet, and the above Compared with the control information sent at the end of the activation period, there is no need to change the MCS or resource allocation method, so instead of sending control information, it sends indication information for instructing the receiving end to receive data information (this indication information is not shown in the figure ). Later in this activation period, if you need to change the MCS or resource allocation method, you need to retransmit new control information again. For example, when the 8# data packet is transmitted, because you need to change the MCS and resource allocation method, you need to resend new control information. , if there is no need to change the MCS or resource allocation method, such as when the 9# data packet is transmitted, no more control information will be sent.

The following four embodiments are used to illustrate the four technical solutions for sending and receiving control information, and the synchronous transmission of control information and data information is used as an example to illustrate (the transmission of control information and data information may also be asynchronous, because the control information and data information are transmitted independently on the control channel and traffic channel, as long as the control information can be guaranteed to be transmitted no later than the data information).

Embodiment one:

It is used to illustrate the first technical solution for sending control information proposed in the embodiment of the present invention, as shown in FIG. 2 for details, and the process of the sending end is as follows:

Step 200: The sending end detects whether the silent period has come, and when detecting that the silent period has arrived, sends indication information for indicating that the silent period has arrived;

Step 201: The sending end does not detect the arrival of the silent period, that is, when it is in the active period, if it needs to send data, judge whether the data packet to be sent is the first data packet in the active period, and if so, go to step 202 to continue execution. Otherwise execute step 203;

Step 202: Select a reasonable MCS and available resources, generate corresponding control information according to the selected MCS and available resources, and send the generated control information on the corresponding control channel;

Step 203: On the resources indicated by the control information, code and modulate service data information based on the MCS indicated by the control information, and send the coded and modulated service data information;

Step 204: Determine whether the corresponding feedback information is received at the specified time, if not, go to step 205 to continue execution, otherwise go to step 201;

Step 205: Determine whether control information was sent when the data packet was sent last time, if yes, go to step 202, otherwise, go to step 201.

It should be noted that the data packets to be sent referred to in the embodiments of the present invention not only refer to newly transmitted data packets, but also include data packets to be retransmitted.

The receiving process is as follows:

Step 211: Monitor the control information and judge whether the monitored control information is valid, if the monitored control information is valid, go to step 212 to continue execution, otherwise return to step 211 to continue monitoring the control information.

Step 212: Receive the control information and judge whether the reception of the control information is successful, if it fails, return to step 211 and continue to execute, otherwise, execute step 213;

Step 213: Receive data services on the traffic channel according to the latest control information, demodulate and decode the received data services based on the latest control information received, and send corresponding reception feedback information;

Step 214: Judging whether the indication information indicating the arrival of the silent period is received, that is, judging whether to enter the silent period, if it is found that the silent period has entered, go to step 211 and continue to execute, otherwise execute step 213.

It should be noted that the method for the receiving end to detect the arrival of the silent period in the embodiment of the present invention is as follows:

The sender explicitly notifies the receiver of the arrival of the silent period. The receiving end only receives business information on time during the activation period, and after receiving the instruction from the sending end to confirm the arrival of the silent period, it changes from receiving business information to monitoring and controlling information, and no longer receives and monitors business information. Afterwards, when valid control information is received, indicating that the activation period has come again, the receiver starts to only receive service information and no longer monitors control information. This method does not require the receiving end to monitor the control information all the time, thereby effectively saving the energy consumption of the receiving end (especially for the downlink, where the user terminal (UE) is the receiving end).

It is necessary for the sender to explicitly notify the receiver that the silent period is coming. This is because: if the sender does not send a silent period indication, during the silent period, although the sender does not send a data packet to the receiver, the receiver still continues to try to receive on the resources indicated by the latest control information it receives. Data information. At this time, the data on the resource is not sent to the receiving end, which will cause the receiving end to receive wrong content during the silent period (that is, the receiving end correctly receives the data that other receiving ends should receive) or not necessary feedback.

In the embodiment of the present invention, the method for the receiving end to detect the arrival of the activation period is as follows:

The receiver monitors the control channel during the silent period. Once the receiving end receives valid control information, or receives the indication information used to instruct the receiving end to receive data information, it indicates that the activation period has arrived, and the receiving end receives service information according to the latest control information on the control channel.

In addition, if the control information sent at the beginning of each activation period is not received by the receiving end (lost) or the transmission is wrong (CRC check fails), the receiving end will continue to monitor the control information, but will not receive business data package, and will not send feedback information to the sender. In this case, the sending end needs to resend the control information to the receiving end, and during this period, the lost data packets can be resent through the HARQ technology. In fact, since the control information is usually protected by strong channel coding, the probability of error is very small.

Services similar to VoIP have the characteristics of small data packets but relatively strict requirements on delay. The gain of using fully adaptive AMC is small, and usually a fixed or only a small number of MCS solutions are used. However, considering that the wireless channel has time-varying characteristics, the system should have the ability to dynamically adjust the corresponding MCS and resource allocation methods according to channel changes, and the solution provided by Embodiment 1 of the present invention can support dynamic AMC and resource allocation. The use of the mode, and can obtain various degrees of AMC operation (Scalable AMC), the following introduces the second embodiment of the Scalable AMC mode that supports dynamic AMC and resource allocation.

Embodiment two:

In order to explain the second technical solution of the control information transmission proposed by the embodiment of the present invention, Fig. 3 has provided the data transmission process of the monitoring mode of the receiving end, and the monitoring mode of the receiving end requires the receiving end to operate similarly to 3GPPR5 HSDPA, that is, the receiving end continuously Monitor its corresponding control information, if it receives the effective control information sent by the sender, it will receive the next service information according to the MCS indicated by the new control information and occupied resources; control information to receive business information.

The sending process is as follows:

Step 300: The sending end detects whether the silent period has come, and when detecting that the silent period has arrived, sends indication information for indicating that the silent period has arrived;

Step 301: The sending end does not detect the arrival of the silent period, that is, when it is in the active period, if it needs to send data, judge whether the data packet to be sent is the first data packet in the active period, if it is, execute step 303, otherwise go to step 302 continue to execute;

Step 302: Determine whether to change the MCS or resource allocation based on information such as wireless channel, data volume, and load. If necessary, select a reasonable MCS and resource, and go to step 303 to continue execution. Otherwise, keep the original MCS and resource allocation. , and execute step 304;

Step 303: According to the latest MCS selection and resource allocation method, generate corresponding control information according to the latest MCS and resource allocation method, and send the generated control information on the corresponding control channel;

Step 304: Coding and modulating service data information based on the MCS mode indicated by the control information, and sending the coded and modulated service data information on the resources indicated by the control information;

Step 305: Judging whether the corresponding feedback information is received at the specified time, if not, proceed to step 306 to continue execution, otherwise execute step 301;

Step 306: Judging whether control information was sent when the data packet was sent last time, if yes, go to step 303, otherwise go to step 301.

Corresponding to the second technical solution for sending control information proposed in the embodiment of the present invention, there are two schemes for receiving control information. Here we take the receiving scheme of "the receiver monitors the control channel all the time" as an example. The receiver process is as follows:

Step 311: monitor control information, if effective control information is detected, go to step 312 to continue execution, otherwise return to step 311 for continuous monitoring;

Step 312: Receive storage control information, and judge whether the control information is successfully received, if it fails, return to step 311 and continue to execute, otherwise, execute step 313;

Step 313: Receive data services on the traffic channel according to the latest control information, demodulate and decode the received data services based on the latest control information received, and send corresponding reception feedback information;

Step 314: Judging whether the indication information for indicating the arrival of the silent period is received, that is, judging whether to enter the silent period, if it is found that the silent period has entered, go to step 311 and continue to execute, otherwise execute step 315;

Step 315: Continuously monitor the control channel. If effective control information is detected, go to step 312 to continue execution; otherwise, go to step 313.

Figure 4 shows the second technical solution for implementing the sending of control information proposed by the embodiment of the present invention by means of an explicit indication at the sending end. The explicit indication at the sending end requires the sending end to give an explicit indication to the receiving end, and the sending method of the indication information can be There are many kinds. For example, 1-bit indication information can be multiplexed and sent with service data to inform the receiving end to monitor and receive control information on the control channel. This method does not require the receiving end to continuously monitor the control information during the activation period, thus It can save the receiving end, especially for the downlink, the power consumption of the receiving end when the UE is the receiving end, and only needs to increase the additional overhead of 1 bit; of course, the indication information can also be sent separately, that is, when the data packet is ready to be sent, it is judged that it needs to be changed. For control information in the activation period, an instruction message is sent separately to notify the receiving end to receive new control information on the control channel, and the receiving end can receive the data packet to be sent on the resource indicated by the new control information. The following embodiments of the present invention are described by taking the instruction information carried in the data information as an example for multiplexing and sending.

The sending process is as follows:

Step 400: The sending end detects whether the silent period has come, and when detecting that the silent period has arrived, sends indication information for indicating that the silent period has arrived;

Step 401: The sending end does not detect the arrival of the silent period, that is, when it is in the active period, if it needs to send data, judge whether the data packet to be sent is the first data packet in the active period, if so, execute step 403, otherwise execute step 402;

Step 402: Determine whether to change the MCS or resource allocation based on information such as wireless channel, data volume, and load. If necessary, select a reasonable MCS and resource, and set indication information to notify the receiving end to receive control information, and then perform step 403 , otherwise execute step 404;

Step 403: Generate corresponding control information according to the latest MCS selection and resource allocation method, and send the generated control information on the corresponding control channel;

Step 404: encode and modulate service data information based on the MCS mode indicated by the control information, and send the encoded and modulated service data information on the resources indicated by the control information;

Step 405: Judging whether the corresponding feedback information is received at the specified time, if not, execute step 406, otherwise execute step 401;

Step 406: Judging whether control information was sent when the data packet was sent last time, if yes, execute step 407, otherwise execute step 401;

Step 407: Determine whether the data packet sent last time is the first data packet in the activation period, if yes, execute step 403, otherwise execute step 402.

Corresponding to the second technical solution for sending control information proposed in the embodiment of the present invention, there are two schemes for receiving control information. Here we take the receiving scheme of "during the activation period, the receiving end will switch to the control channel to monitor and receive new control information when it receives an indication message that explicitly informs it that it is ready to receive new control information" as an example. The flow of the receiving end is as follows :

Step 411: monitor control information, if effective control information is detected, execute step 412, otherwise return to step 411 to continue monitoring control information;

Step 412: Receive the storage control information, and judge whether the control information is successfully received, if it fails, return to step 411 for execution, otherwise, execute step 413;

Step 413: Receive data services on the traffic channel according to the latest control information, demodulate and decode the received data services based on the latest control information received, and send corresponding reception feedback information;

Step 414: Judging whether to receive the next control information according to the instruction information, if necessary, execute step 412, otherwise execute step 415;

Step 415: Judging whether the indication information indicating the arrival of the silent period is received, that is, judging whether to enter the silent period, if entering the silent period, perform step 411, otherwise perform step 413.

The following describes the third embodiment that can further reduce the control information:

It is used to illustrate the third technical solution for sending control information proposed by the embodiment of the present invention, as shown in FIG. 5 for details, and the process of the sending end is as follows:

Step 500: The sending end detects whether the silent period has arrived, and when detecting that the silent period has arrived, sends indication information indicating the arrival of the silent period;

Step 501: The sender does not detect the arrival of the silent period, that is, when it is in the active period, if it needs to send data, judge whether the data packet to be sent is the first data packet in the active period, if it is, execute step 502, otherwise execute step 504 ;

Step 502: Determine whether to change the MCS or resource allocation according to information such as wireless channel, data volume, and load, and if necessary, select a reasonable MCS and resource, and execute step 503; otherwise, keep the original MCS and resource, and send an instruction The receiving end receives the indication information of the data information, and performs step 504;

Step 503: Generate corresponding control information according to the latest MCS selection and resource allocation method, and send the generated control information on the corresponding control channel;

Step 504: encode and modulate service data information based on the MCS mode indicated by the control information, and send the encoded and modulated service data information on the resources indicated by the control information;

Step 505: Determine whether the corresponding feedback information is received at the specified time, if not, execute step 506, otherwise return to step 501 for execution;

Step 506: Determine whether control information was sent when the data packet was sent last time, if yes, execute step 502, otherwise return to step 501 for execution.

Corresponding to the third technical solution for sending control information proposed by the embodiment of the present invention, there are two schemes for receiving control information. Here we take the receiving scheme of "the receiver monitors the control channel all the time" as an example. The receiver process is as follows:

Step 511: monitor control information, if effective control information is detected, execute step 512, otherwise execute step 513;

Step 512: Receive the storage control information, and judge whether the control information is successfully received, if it fails, return to step 511 for execution, otherwise, execute step 514;

Step 513: Judging whether the indication information for instructing the receiving end to receive data information is received, if not, return to step 511 to continue execution, otherwise execute step 514;

Step 514: Receive data services on the traffic channel according to the latest control information, demodulate and decode the received data services based on the latest control information received, and send corresponding reception feedback information;

Step 515: Judging whether the indication information for indicating the arrival of the silent period is received, that is, judging whether to enter the silent period, if it is found that the silent period has entered, then go to step 511 and continue to execute, otherwise execute step 516;

Step 516: Continuously monitor the control channel, if valid control information is detected, go to step 512, otherwise go to step 514.

It should be noted that, corresponding to the third technical solution for sending control information proposed by the embodiment of the present invention, the receiving of control information may also adopt "during the activation period, when the receiving end receives an explicit notification that it is ready to receive new control information Only when the information is received, it switches to the control channel to monitor and receive new control information". Those skilled in the art can obtain it by analogy with the flow of the receiving end in FIG. 4 , and will not be described in detail here.

Embodiment four:

It is used to illustrate the fourth technical solution for sending control information proposed by the embodiment of the present invention. When a data packet needs to be sent, it is judged whether the MCS or resource allocation needs to be changed. If it needs to be changed, the new control information is resent, otherwise only Business data information. Corresponding to the fourth technical solution for sending control information proposed by the embodiment of the present invention, there are two schemes for receiving control information. Here, the receiving scheme of "the receiving end has been monitoring the control channel" is taken as an example to illustrate. The specific process is shown in Figure 6. The flow of the sending end and the receiving end is relatively simple. Those skilled in the art can compare the flow of the above three embodiments. obtained, so it will not be described in detail here.

Similarly, corresponding to the fourth technical solution for sending control information proposed by the embodiment of the present invention, the reception of control information may also adopt "during the activation period, when the receiving end receives the indication information that explicitly notifies that it is ready to receive new control information, Then switch to the control channel to monitor and receive new control information" scheme. Those skilled in the art can obtain it by analogy with the flow of the receiving end in FIG. 4 , and will not be described in detail here.

In the control information sending and receiving method proposed by the embodiment of the present invention, the sending end explicitly notifies the receiving end of the arrival of the silent period, and the receiving end switches from receiving data information on the traffic channel to monitoring the control channel after learning that the silent period has arrived. When valid control information is received (including the indication information instructing the receiving end to receive data information), it indicates that the activation period has come again. At this time, the receiving end starts to monitor and receive data information on the traffic channel, and no longer monitors the control channel. The receiving end does not need to monitor the control channel or the traffic channel all the time, thereby effectively saving the energy consumption of the receiving end.

The control information sending and receiving method proposed by the embodiment of the present invention does not need to perform grouping operations on users, and can obtain statistical multiplexing gains among all users; no additional layer 3 signaling is required to configure grouping resources and allocation operations; no need to use High-power transmission of control information, you can flexibly choose whether to use beamforming for control information transmission, without increasing the overall interference of the system.

The control information sending and receiving method proposed by the embodiment of the present invention is not sensitive to the retransmission ratio, and there is no problem that a high proportion of control information overhead is required due to a high retransmission ratio caused by channel deterioration, resulting in a sharp drop in system capacity. , with good robustness and scalability.

The control information sending and receiving method proposed by the embodiment of the present invention does not need any pre-resource allocation operation for users, and both the first transmission and retransmission can be dynamically scheduled, which can well adapt to system load and wireless channel changes of each user; very flexible A dynamic trade-off between downlink control information overhead and AMC gain can be achieved, and a flexible choice between full-dynamic AMC and fixed MCS can be achieved with the least cost, which can achieve high compatibility with traditional solutions.

If the method for sending and receiving control information proposed by the embodiment of the present invention is applied to the HSDPA system, except for the method of using the explicit indication mode of the sending end of Scalable AMC in the method for sending and receiving control information proposed by the embodiment of the present invention, there is no need to No modifications are made to the existing HSDPA protocol, and there is no need to make any modifications to the channel structure. It can coexist well with other services without increasing system complexity and has good compatibility; of course, the control proposed by the embodiment of the present invention The information sending and receiving method can also be applied to any other related systems.

The control information sending and receiving method proposed by the embodiment of the present invention can effectively reduce the overhead of control information without affecting the service and system performance, improve the system capacity, have strong expansion capabilities, and can be used in different situations Get the best compromise.

According to an embodiment of the technical solution of the present invention, the present invention provides a first control information sending device for implementing the technical solution. As shown in FIG. 7 , the control information sending device 70 includes: a first indication information sending unit 72 for When the last data message of each activation period is sent, the indication information for indicating the arrival of the silent period is sent.

The control information sending device 70 further includes: a first indication information carrying unit 71, configured to carry the indication information sent by the first indication information sending unit 72 in the last data information of the activation period.

The control information generating unit 73 is used to generate the control information of the activation period when the next activation period arrives; the control information sending unit 74 is used to transmit the control information no later than the first data information of the activation period. The control information generated by the information generating unit 73 is sent on the corresponding control channel.

The judging unit 75 is used to judge whether the control information of the activation period needs to be changed when sending each subsequent data information containing the second data information of the activation period; When a piece of data information needs to change the control information of the activation period, generate new control information of the activation period; the control information sending unit 74 sends the new control information generated by the control information generating unit 73 on the corresponding control channel.

The control information sending device 70 also includes a second instruction information sending unit 77, configured to send instruction information for instructing the receiving end to receive new control information before the new control information generated by the control information generating unit 73 is sent;

The second indication information carrying unit 76 is configured to carry the indication information sent by the second indication information sending unit 77 in the data information to be sent.

According to an embodiment of the technical solution of the present invention, the present invention here provides a first control information receiving device implementing the technical solution. As shown in FIG. 8 , the control information receiving device includes: a first indication information judging unit 81 for Judging whether to receive the indication information for indicating the arrival of the silent period; switching the receiving unit 82, for switching to the corresponding control channel when the first indication information judging unit 81 determines that the indication information for indicating the arrival of the silent period is received Monitor and receive control information for the next activation period.

The first indication information judging unit 81 monitors and receives data information on the traffic channel according to the control information of the active period; and judges whether the received data information includes indication information for indicating the arrival of the silent period.

After receiving the control information of the next activation period, the switching receiving unit 82 switches to the traffic channel to monitor and receive the data information of the next activation period based on the received control information.

The control information receiving device further includes: a second indication information judging unit 83, which is used to judge whether the indication information for instructing the receiving end to receive new control information is received; When the indication information for instructing the receiving end to receive the new control information, switch to the corresponding control channel to monitor and receive the new control information; after receiving the new control information, the switching receiving unit 82, based on the received new control information The information is switched to the traffic channel to continue receiving data information.

The second indication information judging unit 83 judges whether the received data information includes indication information for instructing the receiving end to receive new control information.

According to an embodiment of the technical solution of the present invention, the present invention provides a third control information sending device implementing the technical solution. As shown in FIG. 9 , the control information sending device 90 includes: a first indication information sending unit 92, When the last data message of each activation period is sent, the indication information for indicating the arrival of the silent period is sent.

The control information sending device 90 further includes: a first indication information carrying unit 91, configured to carry the indication information sent by the first indication information sending unit 92 in the last data information of the activation period.

The first judging unit 93 is used to judge whether the control information of the activation period needs to be changed relative to the control information of the previous activation period when the next activation period arrives; the control information generating unit 94 is used to judge whether When it needs to be changed, generate the control information of the activation period; the control information sending unit 95 is used to send the control information generated by the control information generating unit 94 in the corresponding The second instruction information sending unit 96 is used to send the instruction information to the receiving end when the first judging unit 93 judges that no change is needed, and when the first data message is sent no later than the activation period. Indication information for receiving data information.

The control information sending device 90 also includes: a second judging unit 97, configured to judge whether it is necessary to change the control information of the activation period when sending each subsequent data information containing the second data information of the activation period; control information generation When the second judging unit 97 judges that the control information of the activation period needs to be changed in order to send a subsequent data message, the unit 94 generates new control information of the activation period; The new control information is sent on the corresponding control channel.

The control information sending device 90 further includes: a third instruction information sending unit 99, configured to send instruction information for instructing the receiving end to receive new control information before the new control information generated by the control information generating unit 94 is sent;

The control information sending device 90 further includes: a third indication information carrying unit 98, configured to carry the indication information sent by the third indication information sending unit 99 in the data information to be sent.

According to an embodiment of the technical solution of the present invention, the present invention provides a second control information receiving device implementing the technical solution. As shown in FIG. 10 , the control information receiving device includes: a first indication information judging unit 101 for Judging whether to receive the indication information for indicating the arrival of the silent period; switching the receiving unit 102, for switching to the corresponding control channel when the first indication information judging unit 101 determines that the indication information for indicating the arrival of the silent period is received Monitor and receive control information for the next activation period.

The second instruction information judging unit 103 is used to judge whether to receive the instruction information for instructing the receiving end to receive data information; After the indication information of the data information, based on the control information received last in the previous activation period of the next activation period, switch to the corresponding traffic channel to receive the data information of the next activation period.

The first indication information judging unit 101 monitors and receives data information on the traffic channel according to the control information of the active period; and judges whether the received data information contains indication information for indicating the arrival of the silent period.

After receiving the control information of the next activation period, the switching receiving unit 102 switches to the traffic channel to receive the data information of the next activation period based on the received control information.

The control information receiving device further includes: a third indication information judging unit 104, which is used to judge whether the indication information for instructing the receiving end to receive new control information is received; When the indication information used to instruct the receiving end to receive new control information, switch to the corresponding control channel to monitor and receive the new control information; after receiving the new control information, the switching receiving unit 102, based on the received new control information The information is switched to the traffic channel to continue receiving data information.

The third indication information judging unit 104 judges whether the received data information includes indication information for instructing the receiving end to receive new control information.

According to the embodiment of the technical solution of the present invention, the present invention here provides a control information transmission system implementing the technical solution, as shown in Figure 11, including a control information sending device 111 and a control information receiving device 112, wherein the control information sending device 111 includes:

The first indication information sending unit 1111 is used to send the indication information for indicating the arrival of the silent period when the last data information is sent not earlier than each activation period; the control information generation unit 1112 is used for the arrival of the next activation period , generate the control information of the activation period; the control information sending unit 1113 is configured to send the control information generated by the control information generating unit 1112 on the corresponding control channel no later than when the first data information of the activation period is sent ;

The control information receiving device 112 includes:

The first indication information judging unit 1121 is configured to judge whether the indication information indicating the arrival of the silent period is received; the handover receiving unit 1122 is used to determine whether the first indication information judging unit 1121 has received the indication information indicating the arrival of the silent period When the information is indicated, switch to the corresponding control channel to monitor and receive the control information of the next activation period.

According to the embodiment of the technical solution of the present invention, the present invention here provides another control information transmission system implementing the technical solution, as shown in Figure 12, including a control information sending device 121 and a control information receiving device 122, wherein the control information sending Equipment 121 includes:

The first indication information sending unit 1211 is configured to send indication information indicating the arrival of the silent period when the last data message is sent not earlier than each activation period; the first judging unit 1212 is configured to arrive at the next activation period , judge whether the control information of the activation period needs to be changed compared with the last control information sent in the previous activation period; the control information generating unit 1213 is used to generate the control information of the activation period when the first judging unit 1212 determines that it needs to be changed. information; the control information sending unit 1214, configured to send the control information generated by the control information generating unit 1213 on the corresponding control channel when the first data information is sent no later than the activation period; the second indication information sending unit 1215 , used to send indication information for instructing the receiving end to receive data information when the first judging unit 1212 judges that no change is needed and when the first data information is sent no later than the activation period;

The control information receiving device 122 includes:

The first indication information judging unit 1221 is configured to judge whether the indication information indicating the arrival of the silent period is received; the switch receiving unit 1222 is configured to determine whether the first indication information judging unit 1221 has received the indication information indicating the arrival of the silent period When indicating information, switch to the corresponding control channel to monitor and receive the control information of the next activation period; the second indication information judging unit 1223 is used to determine whether the indication information for instructing the receiving end to receive data information is received; the When the second indication information judging unit 1223 determines that the indication information for instructing the receiving end to receive data information is received, the switching receiving unit 1222 switches to the corresponding one based on the control information last received in the previous activation period of the next activation period. The data information of the next activation period is received on the traffic channel.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (32)

1. a control information sending method, is characterized in that, comprises step:

When last data message being no earlier than each active period sends, send the indication information being used to indicate quiet period and arriving;

When next active period arrives, generate the control information of this active period;

When sending earlier than this active period first data message, the control information of described generation is sent on the control channel of correspondence, before next quiet period to active period transfer point, only have when needing to adjust corresponding MCS or resource distribution mode, just resend new control information.

2. the method for claim 1, is characterized in that, described indication information is carried in last data message of active period.

3. method as claimed in claim 1 or 2, is characterized in that, also comprise step:

When sending this active period second data message and each data message follow-up, judge whether the control information needing to change this active period; And

When judging to be ready for sending a follow-up data message and needing the control information changing this active period, generate the new control information of this active period;

The new control information of described generation is sent on corresponding control channel.

4. method as claimed in claim 3, is characterized in that, before being also included in described new control information transmission, sending and is used to indicate the step that receiving terminal receives the indication information of this new control information.

5. method as claimed in claim 4, it is characterized in that, described indication information is carried in this data message be ready for sending.

6. a control information dispensing device, is characterized in that, comprising:

First indication information transmitting element, during for sending at last data message being no earlier than each active period, sends the indication information being used to indicate quiet period and arriving;

Control information generation unit, for when next active period arrives, generates the control information of this active period;

Control information transmitting element, for when sending earlier than this active period first data message, the control information of described generation is sent on the control channel of correspondence, before next quiet period to active period transfer point, only have when needing to adjust corresponding MCS or resource distribution mode, just resend new control information.

7. device as claimed in claim 6, is characterized in that, also comprise the first indication information load bearing unit, for being carried in last data message of active period by described indication information.

8. device as claimed in claims 6 or 7, is characterized in that, also comprise:

Judging unit, for when transmission comprises each data message follow-up of this active period second data message, judges whether the control information needing to change this active period;

Described control information generation unit, when judging to be ready for sending a follow-up data message and needing the control information changing this active period, generates the new control information of this active period;

The new control information of described generation sends by described control information transmitting element on corresponding control channel.

9. device as claimed in claim 8, is characterized in that, also comprise the second indication information transmitting element, for before described new control information sends, sends and is used to indicate the indication information that receiving terminal receives this new control information.

10. device as claimed in claim 9, is characterized in that, also comprise the second indication information load bearing unit, for being carried in this data message be ready for sending by described indication information.

The sending method of 11. 1 kinds of control informations, is characterized in that, comprises step:

When last data message being no earlier than each active period sends, send the indication information being used to indicate quiet period and arriving;

When next active period arrives, according to wireless channel, data volume and load, determine the need of change MCS or Resourse Distribute;

If needed, then select rational MCS and resource, and generate corresponding control information according to up-to-date MCS and resource distribution mode; And

When sending earlier than this active period first data message, the control information of described generation is sent on the control channel of correspondence;

Otherwise, when sending earlier than this active period first data message, send the indication information being used to indicate receiving terminal receiving data information.

12. methods as claimed in claim 11, is characterized in that, described in be used to indicate quiet period arrive indication information be carried in last data message of active period.

13. methods as described in claim 11 or 12, is characterized in that, also comprise step:

When sending this active period second data message and each data message follow-up, judge whether the control information needing to change this active period; And

When judging to be ready for sending a follow-up data message and needing the control information changing this active period, generate the new control information of this active period;

The new control information of described generation is sent on the control channel of correspondence.

14. methods as claimed in claim 13, is characterized in that, before being also included in described new control information transmission, sending and are used to indicate the step that receiving terminal receives the indication information of this new control information.

15. methods as claimed in claim 14, it is characterized in that, described indication information is carried in this data message be ready for sending.

16. 1 kinds of control information method of reseptances, is characterized in that, comprise step:

Judge whether to receive the indication information being used to indicate quiet period and arriving; And

Receive be used to indicate indication information that quiet period arrives time, be transformed into and corresponding control channel monitor and receives the control information of next active period;

Judge whether to receive the indication information being used to indicate receiving terminal receiving data information; And

When receiving the indication information being used to indicate receiving terminal receiving data information, the last received control information of previous active period based on next active period described is transformed into data message Traffic Channel receiving next active period described, and carries out demodulation, decoding based on the up-to-date control information received to the data message received.

17. methods as claimed in claim 16, is characterized in that, described in judge whether to receive the step of indication information being used to indicate quiet period and arriving, specifically comprise:

According to the control information receiving data information on a traffic channel of this active period; And

Judge in the data message received, whether to comprise the indication information being used to indicate quiet period and arriving.

18. methods as claimed in claim 16, is characterized in that, also comprise step:

After the control information receiving next active period described, be transformed into data message Traffic Channel receiving next active period described based on this control information received.

19. methods as described in claim 16 or 18, is characterized in that, also comprise step:

Judge whether to receive and be used to indicate the indication information that receiving terminal receives new control information; And

Receive be used to indicate receiving terminal receive the indication information of new control information time, be transformed into and corresponding control channel monitor and receives new control information;

After receiving described new control information, be transformed into Traffic Channel based on this new control information received and continue receiving data information.

20. methods as claimed in claim 19, is characterized in that, described in judge whether to receive and be used to indicate the step that receiving terminal receives the indication information of new control information, specifically comprise:

Judge whether to comprise in the data message received to be used to indicate the indication information that receiving terminal receives new control information.

21. 1 kinds of control information dispensing devices, is characterized in that, comprising:

First indication information transmitting element, during for sending at last data message being no earlier than each active period, sends the indication information being used to indicate quiet period and arriving;

First judging unit, for when next active period arrives, according to wireless channel, data volume and load, determines the need of change MCS or Resourse Distribute;

Control information generation unit, for when needs change MCS or Resourse Distribute, selects rational MCS and resource, and generates corresponding control information according to up-to-date MCS and resource distribution mode;

Control information transmitting element, for when sending earlier than this active period first data message, sends the control information of described generation on the control channel of correspondence;

Second indication information transmitting element, for when not needing to change, when sending earlier than this active period first data message, sends the indication information being used to indicate receiving terminal receiving data information.

22. devices as claimed in claim 21, is characterized in that, also comprise the first indication information load bearing unit, for being carried in last data message of active period by the described indication information being used to indicate quiet period arrival.

23. devices as described in claim 21 or 22, is characterized in that, also comprise:

Second judging unit, for when transmission comprises each data message follow-up of this active period second data message, judges whether the control information needing to change this active period;

Described control information generation unit, when judging to be ready for sending a follow-up data message and needing the control information changing this active period, generates the new control information of this active period;

The new control information of described generation sends by described control information transmitting element on the control channel of correspondence.

24. devices as claimed in claim 23, is characterized in that, also comprise the 3rd indication information transmitting element, for before described new control information sends, send and are used to indicate the indication information that receiving terminal receives this new control information;

The new control information of described generation sends by described control information transmitting element on the control channel of correspondence.

25. devices as claimed in claim 24, is characterized in that, also comprise the 3rd indication information load bearing unit, for being carried in this data message be ready for sending by described indication information.

26. 1 kinds of control information receiving systems, is characterized in that, comprising:

First indication information judging unit, for judging whether to receive the indication information being used to indicate quiet period and arriving;

Switch receiving element, for receive be used to indicate indication information that quiet period arrives time, be transformed into and corresponding control channel monitor and receives the control information of next active period;

Second indication information judging unit, for judging whether to receive the indication information being used to indicate receiving terminal receiving data information;

Described switching receiving element is when receiving the indication information being used to indicate receiving terminal receiving data information, the last received control information of previous active period based on next active period described is transformed into the data message corresponding Traffic Channel receiving next active period described, and carries out demodulation, decoding based on the up-to-date control information received to the data message received.

27. devices as claimed in claim 26, is characterized in that, described first indication information judging unit is according to the control information receiving data information on a traffic channel of this active period; And

Judge in the data message received, whether to comprise the indication information being used to indicate quiet period and arriving.

28. devices as claimed in claim 26, is characterized in that, also comprise:

Described switching receiving element, after the control information receiving next active period described, is transformed into data message Traffic Channel receiving next active period described based on this control information received.

29. devices as described in claim 26 or 28, is characterized in that, also comprise the 3rd indication information judging unit, being used to indicate for judging whether to receive the indication information that receiving terminal receives new control information;

Described switching receiving element receive be used to indicate receiving terminal receive the indication information of new control information time, be transformed into and corresponding control channel monitor and receives new control information;

Described switching receiving element, after receiving described new control information, is transformed into Traffic Channel based on this new control information received and continues receiving data information.

30. devices as claimed in claim 29, is characterized in that, whether described 3rd indication information judging unit judges to comprise in the data message received to be used to indicate the indication information that receiving terminal receives new control information.

31. 1 kinds of control information transmission systems, comprise control information transmitting apparatus and control information receiving equipment, it is characterized in that, described control information transmitting apparatus comprises:

First indication information transmitting element, during for sending at last data message being no earlier than each active period, sends the indication information being used to indicate quiet period and arriving;

Control information generation unit, for when next active period arrives, generates the control information of this active period;

Control information transmitting element, for when sending earlier than this active period first data message, the control information of described generation is sent on the control channel of correspondence, before next quiet period to active period transfer point, only have when needing to adjust corresponding MCS or resource distribution mode, just resend new control information;

Described control information receiving equipment comprises:

First indication information judging unit, receives the indication information being used to indicate quiet period arrival from transmitting terminal explicit notification for judging whether;

Switch receiving element, for receive be used to indicate indication information that quiet period arrives time, be transformed into and corresponding control channel monitor and receives the control information of next active period.

32. 1 kinds of control information transmission systems, comprise control information transmitting apparatus and control information receiving equipment, it is characterized in that, described control information transmitting apparatus comprises:

First indication information transmitting element, during for sending at last data message being no earlier than each active period, sends the indication information being used to indicate quiet period and arriving;

First judging unit, for when next active period arrives, according to wireless channel, data volume and load, determines the need of change MCS or Resourse Distribute;

Control information generation unit, for when needs change MCS or Resourse Distribute, selects rational MCS and resource, and generates corresponding control information according to up-to-date MCS and resource distribution mode;

Control information transmitting element, for when sending earlier than this active period first data message, sends the control information of described generation on the control channel of correspondence;

Second indication information transmitting element, for when not needing to change, when sending earlier than this active period first data message, sends the indication information being used to indicate receiving terminal receiving data information;

Described control information receiving equipment comprises:

First indication information judging unit, for judging whether to receive the indication information being used to indicate quiet period and arriving;

Switch receiving element, for receive be used to indicate indication information that quiet period arrives time, be transformed into and corresponding control channel monitor and receives the control information of next active period;

Second indication information judging unit, for judging whether to receive the indication information being used to indicate receiving terminal receiving data information;

Described switching receiving element is when receiving the indication information being used to indicate receiving terminal receiving data information, the last received control information of previous active period based on next active period described is transformed into the data message corresponding Traffic Channel receiving next active period described, and carries out demodulation, decoding based on the up-to-date control information received to the data message received.