CN101436982B - Method for sending and receiving control information and apparatus, transmission system thereof - Google Patents
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Abstract
本发明公开了一种控制信息发送方法,包括步骤:在不早于每一个激活期的最后一个数据信息发送时,发送用于指示静默期到来的指示信息;在下一个激活期到来时,生成该激活期的控制信息;在不迟于该激活期第一个数据信息发送时,将所述生成的控制信息在对应的控制信道上发送。同时,公开了一种控制信息接收方法,包括步骤:判断是否接收到用于指示静默期到来的指示信息;以及在接收到用于指示静默期到来的指示信息时,转换到对应的控制信道上监控并接收下一激活期的控制信息。相应的,本发明还公开了一种控制信息的发送、接收装置及控制信息传输系统。采用本发明方案,能够有效降低控制信息开销,从而提高系统容量;以及能够使节省接收端的能源消耗。
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
技术领域technical field
本发明涉及通信领域,尤其涉及一种控制信息发送、接收方法及其装置、传输系统。The invention relates to the communication field, in particular to a control information sending and receiving method, device and transmission system.
背景技术Background technique
随着信息化的高速发展,人们的生活越来越离不开因特网提供的各种服务。人们希望在任何地点、任何时间都能够获得便捷的因特网服务,即所谓的ever-online概念,实现该目标的最好途径是无线网络的分组域承载。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.
语音(或类似业务)在分组域承载时,由于语音帧通常很小,而且语音业务对时延、时延抖动及数据错误率均非常敏感,所以要求语音帧必须及时得到传输,而不会将多个语音帧进行串接后再进行传输。而如果每次语音帧的传输都伴随有控制信息的话,控制信息的开销相对于语音有效负荷而言将会很大(具体的开销比例依赖于系统实现各异)。因此为了提高语音业务在分组域承载的有效性和可靠性,一个最直接有效的方法是在保障语音业务质量的前提下,尽可能的降低控制信息的开销。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.
目前,降低控制信息开销的方案主要有两类,一类是分组(Grouping)方案,另一类是半静态调度方案。下面分别介绍这两类现有技术方案。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.
分组(Grouping)方案:Grouping scheme:
这种方案的核心思想是对用户进行分组,若干个属于同一分组的基于IP语音传输(VoIP,Voice over IP)的用户时分复用同一块物理层资源,即统计复用仅仅在使用同一块物理层资源的不同用户之间进行,各个用户具体的资源分配则依赖于层3信令进行预分配;该方案不采用自适应编码与调制(AMC)技术,而采用固定调制/编码(MCS)方案进行数据传输;并且采用同步混合自动重传请求(HARQ)技术和固定的冗余版本序列。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.
由于Grouping方案中多个用户时分复用同一块物理层资源,当这种方法应用到高速下行分组接入(HSDPA,High Speed Downlink Packet Access)系统时,需要对现有的HSDPA中的高速下行共享信道(HS-DSCH,High SpeedDownlink Shared Channel)的结构(帧格式)作修改以区分HS-DSCH的目标接收者。另外,预先对用户分组,需要增加额外的层3信令对这种分组和资源预分配进行配置。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.
Grouping方案由于采用固定MCS的方式,这样即使用户信道很差,也没有机会可以改变MCS,导致数据错误率大,系统中断概率(Outage)增高,容量下降;而对于用户信道质量变好的情况,也不能提高这个用户的MCS,该用户占用的资源也不能动态分给其他用户,不能提高系统容量。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.
半静态调度方案:Semi-static scheduling scheme:
在这种方案下,采用异步HARQ,每个数据包的首次传输采用固定的资源分配,重传采用动态调度的方式。即需要为每个处于激活期的用户每隔20ms(连续两个语音帧出现时间间隔)固定预留资源,如果某个数据包传输出错,则需要在除去这些为首次传输预留的资源之外寻找合适的资源来进行重传,重传需要发送控制信息。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.
半静态调度方案应用到HSDPA系统时,也需要对现有的HSDPA系统协议进行较大的改动。另外,由于同样需要将首次传输资源信息预先告知用户,需要增加额外的层3信令来实现。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.
半静态调度方案降低控制信息开销的增益依赖于重传比例,如果信道较差,重传比例很高的话,由于重传需要动态调度,下行控制开销增大,导致系统容量下降很快。另外,首次传输固定资源,不采用AMC,会导致要么错误概率大,要么资源浪费的情况发生。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.
综上,现有技术中降低控制信息的方案存在传输错误概率大、系统容量得不到提高的问题。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.
发明内容Contents of the invention
本发明实施例要解决的技术问题在于提供一种控制信息发送方法,以有效降低控制信息开销,提高系统容量。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.
对应的,本发明实施例还提供了一种控制信息接收方法,及其相应的发送、接收装置以及一种控制信息传输系统。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.
本发明实施例提出的控制信息发送方法,包括步骤:在不早于每一个激活期的最后一个数据信息发送时,发送用于指示静默期到来的指示信息;在下一个激活期到来时,生成该激活期的控制信息;在不迟于该激活期第一个数据信息发送时,将所述生成的控制信息在对应的控制信道上发送。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.
本发明实施例提出的控制信息接收方法,包括步骤:判断是否接收到用于指示静默期到来的指示信息;以及在接收到用于指示静默期到来的指示信息时,转换到对应的控制信道上监控并接收下一激活期的控制信息。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.
本发明实施例提出的控制信息发送装置,包括:第一指示信息发送单元,用于在不早于每一个激活期的最后一个数据信息发送时,发送用于指示静默期到来的指示信息;控制信息生成单元,用于在下一个激活期到来时,生成该激活期的控制信息;控制信息发送单元,用于在不迟于该激活期第一个数据信息发送时,将所述生成的控制信息在对应的控制信道上发送。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.
本发明实施例提出的控制信息接收装置,包括:第一指示信息判断单元,用于判断是否接收到用于指示静默期到来的指示信息;切换接收单元,用于在接收到用于指示静默期到来的指示信息时,转换到对应的控制信道上监控并接收下一激活期的控制信息。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.
本发明实施例提出的控制信息发送方法,包括步骤:在不早于每一个激活期的最后一个数据信息发送时,发送用于指示静默期到来的指示信息;在下一个激活期到来时,判断该激活期的控制信息相对于前一个激活期最后发送的控制信息是否需要改变;若是,生成该激活期的控制信息;以及在不迟于该激活期第一个数据信息发送时,将所述生成的控制信息在对应的控制信道上发送;否则,在不迟于该激活期第一个数据信息发送时,发送用于指示接收端接收数据信息的指示信息。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.
本发明实施例提出的控制信息接收方法,包括步骤:判断是否接收到用于指示静默期到来的指示信息;以及在接收到用于指示静默期到来的指示信息时,转换到对应的控制信道上监控并接收下一激活期的控制信息;判断是否接收到用于指示接收端接收数据信息的指示信息;以及在接收到用于指示接收端接收数据信息的指示信息时,基于所述下一激活期的前一个激活期最后接收的控制信息转换到业务信道上接收所述下一激活期的数据信息。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.
本发明实施例提出的控制信息发送装置,包括:第一指示信息发送单元,用于在不早于每一个激活期的最后一个数据信息发送时,发送用于指示静默期到来的指示信息;第一判断单元,用于在下一个激活期到来时,判断该激活期的控制信息相对于前一个激活期最后发送的控制信息是否需要改变;控制信息生成单元,用于在需要改变时,生成该激活期的控制信息;控制信息发送单元,用于在不迟于该激活期第一个数据信息发送时,将所述生成的控制信息在对应的控制信道上发送;第二指示信息发送单元,用于在不需要改变时,在不迟于该激活期第一个数据信息发送时,发送用于指示接收端接收数据信息的指示信息。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.
本发明实施例提出的控制信息接收装置,包括:第一指示信息判断单元,用于判断是否接收到用于指示静默期到来的指示信息;切换接收单元,用于在接收到用于指示静默期到来的指示信息时,转换到对应的控制信道上监控并接收下一激活期的控制信息;第二指示信息判断单元,用于判断是否接收到用于指示接收端接收数据信息的指示信息;所述切换接收单元在接收到用于指示接收端接收数据信息的指示信息时,基于所述下一激活期的前一个激活期最后接收的控制信息转换到对应的业务信道上接收所述下一激活期的数据信息。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.
本发明实施例提出的控制信息传输系统,包括控制信息发送设备及控制信息接收设备,所述控制信息发送设备包括: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:
第一指示信息发送单元,用于在不早于每一个激活期的最后一个数据信息发送时,发送用于指示静默期到来的指示信息;控制信息生成单元,用于在下一个激活期到来时,生成该激活期的控制信息;控制信息发送单元,用于在不迟于该激活期第一个数据信息发送时,将所述生成的控制信息在对应的控制信道上发送;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;
所述控制信息接收设备包括:第一指示信息判断单元,用于判断是否接收到用于指示静默期到来的指示信息;切换接收单元,用于在接收到用于指示静默期到来的指示信息时,转换到对应的控制信道上监控并接收下一激活期的控制信息。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.
本发明实施例提出的控制信息传输系统,包括控制信息发送设备及控制信息接收设备,所述控制信息发送设备包括: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:
第一指示信息发送单元,用于在不早于每一个激活期的最后一个数据信息发送时,发送用于指示静默期到来的指示信息;第一判断单元,用于在下一个激活期到来时,判断该激活期的控制信息相对于前一个激活期最后发送的控制信息是否需要改变;控制信息生成单元,用于在需要改变时,生成该激活期的控制信息;控制信息发送单元,用于在不迟于该激活期第一个数据信息发送时,将所述生成的控制信息在对应的控制信道上发送;第二指示信息发送单元,用于在不需要改变时,在不迟于该激活期第一个数据信息发送时,发送用于指示接收端接收数据信息的指示信息;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;
所述控制信息接收设备包括:第一指示信息判断单元,用于判断是否接收到用于指示静默期到来的指示信息;切换接收单元,用于在接收到用于指示静默期到来的指示信息时,转换到对应的控制信道上监控并接收下一激活期的控制信息。第二指示信息判断单元,用于判断是否接收到用于指示接收端接收数据信息的指示信息;所述切换接收单元在接收到用于指示接收端接收数据信息的指示信息时,基于所述下一激活期的前一个激活期最后接收的控制信息转换到对应的业务信道上接收所述下一激活期的数据信息。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.
本发明实施例提出的控制信息发送方法,通过在静默期到激活期转换后,不迟于第一个数据信息发送时,发送控制信息,告知接收端本次激活时期业务占用的资源和相应的MCS信息,在下一个静默期至激活期转换点之前不再重新发送新的控制信息或者只有需要调整MCS或资源分配方式时才重新发送新的控制信息,使得控制信息开销降低,从而提高了系统容量。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 .
本发明实施例提出的另外一种控制信息发送方法,通过在静默期到激活期转换后,不迟于第一个数据信息发送时,判断是否需要调整MCS或资源分配方式,如果需要调整则发送新的控制信息,告知接收端本次激活时期业务占用的资源和相应的MCS信息,否则不发送新的控制信息,而发送用于指示接收端接收数据信息的指示信息;在下一个静默期至激活期转换点之前不再重新发送新的控制信息或者只有需要调整MCS或资源分配方式时才重新发送新的控制信息,使得控制信息开销降低,从而提高了系统容量。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.
本发明实施例提出的控制信息接收方法,通过发送端显式指示的方式,告知接收端静默期到来,或者告知接收端准备接收新的控制信息。使得接收端不需要一直监控控制信道或业务信道,从而节省了接收端的能源消耗。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.
附图说明Description of drawings
图1为本发明实施例提出的控制信息发送方法的示意图;FIG. 1 is a schematic diagram of a method for sending control information proposed in an embodiment of the present invention;
图2为本发明实施例一提出的控制信息发送、接收流程图;FIG. 2 is a flow chart of sending and receiving control information proposed by Embodiment 1 of the present invention;
图3为本发明实施例二提出的接收端监视方式的控制信息发送、接收流程图;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;
图4为本发明实施例二提出的发送示方式的控制信息发送、接收流程图;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;
图5为本发明实施例三提出的控制信息发送、接收流程图;FIG. 5 is a flow chart of sending and receiving control information proposed in Embodiment 3 of the present invention;
图6为本发明实施例四提出的控制信息发送、接收流程图;FIG. 6 is a flow chart of sending and receiving control information proposed in Embodiment 4 of the present invention;
图7为本发明实施例提出的第一种控制信息发送装置的结构示意图;FIG. 7 is a schematic structural diagram of a first control information sending device proposed by an embodiment of the present invention;
图8为本发明实施例提出的第一种控制信息接收装置的结构示意图;FIG. 8 is a schematic structural diagram of a first device for receiving control information proposed by an embodiment of the present invention;
图9为本发明实施例提出的第二种控制信息发送装置的结构示意图;FIG. 9 is a schematic structural diagram of a second control information sending device proposed by an embodiment of the present invention;
图10为本发明实施例提出的第二种控制信息接收装置的结构示意图;FIG. 10 is a schematic structural diagram of a second control information receiving device proposed by an embodiment of the present invention;
图11为本发明实施例提出的一种控制信息传输系统的结构示意图;FIG. 11 is a schematic structural diagram of a control information transmission system proposed by an embodiment of the present invention;
图12为本发明实施例提出的另一种控制信息传输系统的结构示意图。FIG. 12 is a schematic structural diagram of another control information transmission system proposed by an embodiment of the present invention.
具体实施方式Detailed ways
由于静默期间,接收端和发送端不发生任何联系,无线信道可能发生较大改变,因此,本发明实施例提出的控制信息发送的第一种技术方案是:在静默期到激活期转换后,不迟于第一个数据信息发送时,发送控制信息,告知接收端本次激活时期业务占用的资源和相应的MCS信息,在下一个静默期至激活期转换点之前可以不再发送控制信息;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;
考虑到无线信道具有时变特性,系统应该具备针对信道的变化动态调整相应的MCS信息或资源分配方式的能力,所以本发明实施例提出了控制信息发送的第二种技术方案:在静默期到激活期转换后,不迟于第一个数据信息发送时,发送控制信息,告知接收端本次激活时期业务占用的资源和相应的MCS信息,在下一个静默期至激活期转换点之前只有需要调整相应的MCS或资源分配方式时,才重新发送新的控制信息;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;
在本发明实施例提出的第一种技术方案的基础上,考虑到在静默期到激活期转换后,MCS和资源分配方式可能与前一个激活期中业务占用的资源和相应的MCS一致,那么为了进一步降低控制信息,本发明实施例提出了控制信息发送的第三种技术方案:在静默期到激活期转换后的第一个数据包传输时,首先判断是否需要调整相应的MCS或资源分配方式,如果需要调整,则重新发送调整后的控制信息,否则不发送控制信息,而是发送用于指示接收端接收数据信息的指示信息。在下一个静默期至激活期转换点之前可以不再发送控制信息。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.
本发明实施例提出的控制信息发送第四种技术方案是:在静默期到激活期转换后,不迟于第一个数据信息发送时,首先判断是否需要调整相应的MCS或资源分配方式,如果需要调整,则重新发送调整后的控制信息,否则不发送控制信息,而是发送用于指示接收端接收数据信息的指示信息。在下一个静默期至激活期转换点之前有需要调整MCS或资源分配方式时,再重新发送调整后的控制信息,否则可以不再发送控制信息。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.
基于上述本发明实施例提出的控制信息发送的每一种技术方案,相应的都对应有两种控制信息的接收方案。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.
第一种控制信息的接收方案是:接收端时刻监视控制信道及业务信道,一旦接收到有效的控制信息,则按照在控制信道上最新接收的控制信息,在对应的业务信道上接收数据信息,否则仍按照原先的控制信息,在对应的业务信道上接收数据信息。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.
为了节省接收端(特别是对于下行,用户终端为接收端)的能源消耗,本发明实施例提出了另外一种控制信息接收的技术方案,即发送端显式通知接收端,告知静默期到来或者告知准备接收新的控制信息。接收端通常只接收业务信道上的数据信息,一旦接收端收到发送端显式告知静默期到来的指示信息时,从接收数据信息转到控制信道上监控并接收下一激活期的控制信息;或者一旦接收端收到发送端显式告知准备接收新控制信息的指示信息时,也从接收数据信息转到控制信道上监控并接收新的控制信息。当接收端从控制信道上正确接收到控制信息后,切换回业务信道上继续接收数据信息。当接收端接收到发送端显式告知准备接收数据信息的指示信息时,从在控制信道上监控并接收控制信息转到业务信道上接收数据信息。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.
下面结合说明书附图来说明本发明的具体实施方式。The specific implementation manners of the present invention will be described below in conjunction with the accompanying drawings.
图1给出了本发明实施例提出的控制信息发送方法的示意图。FIG. 1 shows a schematic diagram of a method for sending control information proposed by an embodiment of the present invention.
图1所示第一个激活期中数据包的传输过程很好的说明了本发明实施例提出的控制信息发送的第一种技术方案。图中所示第一个激活期中数据包的传输具体过程如下: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#数据包是图中所示第一个激活期的第一个数据包,在传输这个数据包时,也可以在第一个数据信息传送前,发送控制信息,用以告知接收端本激活期内采用的MCS和资源分配情况,而在下一个由静默期转换到激活期的转换点之前可以不再发送控制信息,所有的数据包均采用与第一个数据包相同的资源和MCS方式。重传采用同步HARQ方式,如图1所示2#数据包的第一次重传在与首次传输间隔两个传输间隔(TTI)后发生,第二次重传在与首次传输间隔五个TTI后发生。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.
图1所示第二个激活期中数据包的传输过程很好的说明了本发明实施例提出的控制信息发送的第二种技术方案。图中所示第二个激活期中数据包的传输具体过程如下: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:
7#数据包是图中所示第二个激活期的第一个数据包,在传输这个数据包时,也可以在第一个数据信息传送前,发送控制信息,在下一个由静默期转换到激活期的转换点之前如果需要改变MCS或资源分配时,再次发送新的控制信息,如在8#数据包传输时,需要改变MCS或资源分配,所以需要再次发送新的控制信息,而之后的9#数据包传输时,因为不需要改变MCS和资源分配,故不再发送控制信息,而是采用与8#数据包传输时相同的MCS和资源分配方式。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.
也可以用图1所示的第一个激活期中数据包的传输过程来说明本发明实施例提出的控制信息发送的第三种技术方案。图中所示第一个激活期中数据包传输的具体过程如下: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:
1#数据包是图示第一个激活期的第一个数据包,在传输这个数据包时,也可以在第一个数据信息传送前,首先判断在本激活期中业务需要占用的资源和相应的MCS是否与前一个激活期中的一致,如果不一致,则在传输1#数据包时或在传输1#数据包之前,发送根据在本激活期中业务需要占用的资源和相应的MCS生成的对应控制信息;如果一致,则在传输1#数据包时,不再发送控制信息,而是发送用于指示接收端接收数据信息的指示信息(此指示信息在图中未给出)。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).
也可以用图1所示的第二个激活期中数据包的传输过程来说明本发明实施例提出的控制信息发送的第四种技术方案。图中所示第二个激活期中数据包传输的具体过程如下: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:
7#数据包是图示第二个激活期的第一个数据包,在传输这个数据包时,也可以在第一个数据信息传送前,首先判断是否需要改变MCS或资源分配方式,如果需要,则在发送7#数据包时或在传输7#数据包之前,发送根据在本激活期中业务需要占用的资源和相应的MCS生成的对应控制信息;如果在发送7#数据包时,和上一激活期最后发送的控制信息相比,不需要改变MCS或资源分配方式,则不发送控制信息,而是发送用于指示接收端接收数据信息的指示信息(此指示信息在图中未给出)。之后在本激活期中,如果需要改变MCS或资源分配方式,则需要再次重新传送新的控制信息,如8#数据包传输时,由于需要改变MCS和资源分配方式,因此需要重新发送新的控制信息,如果不需要改变MCS或资源分配方式,如9#数据包传输时,则不再发送控制信息。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.
下面以四个实施例来说明控制信息发送、接收的这四种技术方案,其中以控制信息与数据信息的同步传输为例来说明(控制信息与数据信息的传输也可以不同步,因为控制信息与数据信息分别在控制信道与业务信道上独立传送,只要能保证控制信息不迟于数据信息传送即可)。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).
实施例一:Embodiment one:
用以说明本发明实施例提出的控制信息发送的第一种技术方案,具体参见图2所示,发送端流程如下: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:
步骤200:发送端检测静默期是否到来,在检测到静默期到来时,发送用于指示静默期到来的指示信息;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;
步骤201:发送端没有检测到静默期到来,即处于激活期时,如果需要发送数据,判断需要发送的数据包是否是激活期的第一个数据包,如果是则转到步骤202继续执行,否则执行步骤203;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;
步骤202:选择合理的MCS和可用资源,并根据选择的MCS和可用资源生成对应的控制信息,并将生成的控制信息在对应控制信道发送;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;
步骤203:在控制信息指示的资源上,并基于控制信息指示的MCS编码调制业务数据信息,并将编码调制后的业务数据信息发送;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;
步骤204:判断在规定时刻是否接收到对应反馈信息,如果没有,则转到步骤205继续执行,否则执行步骤201;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;
步骤205:判断上次发送数据包时,是否发送了控制信息,如果是则转到步骤202执行,否则执行步骤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.
需要说明的是,本发明实施例中所指的需要发送的数据包不仅指新传输的数据包,也包括需要重传的数据包。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.
接收端流程如下:The receiving process is as follows:
步骤211:监测控制信息,并判断监测到的控制信息是否有效,如果监测到的控制信息有效,则转到步骤212继续执行,否则返回步骤211继续监测控制信息。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.
步骤212:接收控制信息并判断控制信息接收是否成功,如果失败则返回步骤211继续执行,否则执行步骤213;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;
步骤213:按照最新得到的控制信息在业务信道上接收数据业务,并基于接收到的最新控制信息对接收到的数据业务进行解调、解码等工作,发送相应的接收反馈信息;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;
步骤214:判断是否接收到用于指示静默期到来的指示信息,即判断是否进入静默期,如果发现进入静默期,则转到步骤211继续执行,否则执行步骤213。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.
需要说明的是,本发明实施例中接收端检测静默期到来的方法为: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:
发送端显式通知接收端,告知静默期的到来。接收端在激活期内只按时接收业务信息,在收到发送端指示确认静默期的到来后,从接收业务信息转为监视控制信息,不再接收和监视业务信息。此后,当收到有效的控制信息,表明激活期重新来到后,接收端开始转为只接收业务信息,不再监视控制信息。这种方法不需要接收端一直监视控制信息,从而可以有效节省接收端(特别是对于下行,用户终端(UE)为接收端)的能源消耗。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).
发送端显式通知接收端,告知其静默期到来的过程是必须的。这是因为:若发送端不发送静默期指示的话,则在静默期,虽然发送端不发送数据包给接收端,但是接收端仍然持续尝试,在其最新接收的控制信息所指示的资源上接收数据信息。而此时,在所述资源上的数据并不是发送给该接收端的,这样会导致接收端在静默期接收到错误的内容(即该接收端正确接收别的接收端应该接收的数据)或者不必要的反馈。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.
本发明实施例中接收端检测激活期到来的方法为:In the embodiment of the present invention, the method for the receiving end to detect the arrival of the activation period is as follows:
接收端在静默期监视控制信道。接收端一旦收到有效的控制信息,或者收到用于指示接收端接收数据信息的指示信息时,则表明激活期到来,接收端按照控制信道上的最新控制信息去接收业务信息。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.
另外,如果在每个激活期开始时发送的控制信息没有被接收端接收到(丢失)或者传输出错(CRC校验未通过),接收端仍然会继续监视控制信息,但是不会收到业务数据包,也不会发送反馈信息给发送端。在这种情况下,需要发送端重新发送控制信息给接收端,期间,丢失的数据包可通过HARQ技术重新发送。实际上,由于控制信息通常采用很强的信道编码保护,出错的概率是很小的。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.
类似于VoIP的业务具有数据包较小,但对时延有较为严格要求的特点,其采用完全自适应AMC的增益较小,通常是采用固定或者只采用少量的MCS方案。但是,考虑到无线信道具有时变特性,系统应该具备针对信道的变化动态调整相应的MCS和资源分配方式的能力,将本发明实施例一提供的方案经过扩展,即可支持动态AMC和资源分配方式的使用,并且可以取得各种程度上的AMC操作(Scalable AMC),下面介绍支持动态AMC和资源分配的Scalable AMC方式的实施例二。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.
实施例二:Embodiment two:
用以说明本发明实施例提出的控制信息发送的第二种技术方案,图3给出了接收端监视方式的数据传输流程,接收端监视方式要求接收端类似于3GPPR5 HSDPA操作,即接收端不断监视其对应的控制信息,如果收到发送端发给其的有效控制信息,则按照新的控制信息指示的MCS和占用资源进行下一次业务信息的接收,否则按照最近一次在控制信道上接收到的控制信息进行业务信息接收。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.
发送端流程如下:The sending process is as follows:
步骤300:发送端检测静默期是否到来,在检测到静默期到来时,发送用于指示静默期到来的指示信息;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;
步骤301:发送端没有检测到静默期到来,即处于激活期时,如果需要发送数据,判断需要发送的数据包是否是激活期的第一个数据包,如果是执行步骤303,否则转到步骤302继续执行;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;
步骤302:依据无线信道、数据量和负载等信息,决定是否需要改变MCS或资源分配,如果需要则选择合理的MCS和资源,并转到步骤303继续执行,否则,保持原来的MCS和资源分配,并执行步骤304;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;
步骤303:依据最新的MCS选择和资源分配方式,并根据最新的MCS和资源分配方式生成对应的控制信息,并将生成的控制信息在对应的控制信道发送;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;
步骤304:基于控制信息指示的MCS方式编码调制业务数据信息,并将编码调制后的业务数据信息在控制信息指示的资源上发送;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;
步骤305:判断在规定时刻是否接收到对应的反馈信息,如果没有则转到步骤306继续执行,否则执行步骤301;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;
步骤306:判断上次发送数据包时,是否发送了控制信息,如果是则执行步骤303,否则执行步骤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.
对应于本发明实施例提出的控制信息发送的第二种技术方案,控制信息的接收方案有两种。这里以“接收端一直监控控制信道”的接收方案为例来说明,接收端流程如下: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:
步骤311:监测控制信息,如果监测到有效的控制信息,则转步骤312继续执行,否则返回步骤311持续监测;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;
步骤312:接收存储控制信息,并判断控制信息接收是否成功,如果失败返回步骤311继续执行,否则执行步骤313;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;
步骤313:按照最新得到的控制信息在业务信道上接收数据业务,并基于接收到的最新控制信息对接收到的数据业务进行解调、解码等工作,发送相应的接收反馈信息;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;
步骤314:判断是否接收到用于指示静默期到来的指示信息,即判断是否进入静默期,如果发现进入静默期,则转到步骤311继续执行,否则执行步骤315;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;
步骤315:持续监测控制信道,如果监测到有效的控制信息,则转步骤312继续执行,否则执行步骤313。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.
图4给出了发送端显式指示方式实现本发明实施例提出的控制信息发送的第二种技术方案,发送端显式指示方式需要发送端给予接收端显式指示,指示信息的发送方法可以有多种,例如1比特的指示信息可以与业务数据进行复用发送,用以告知接收端监测并接收控制信道上的控制信息,这种方法无需接收端在激活期时不断监视控制信息,从而可以节省接收端,特别是对于下行,UE为接收端时接收端的功率消耗,而且只需要增加1比特的额外开销;当然指示信息也可以单独发送,即准备发送数据包时,判断出需要改变本激活期的控制信息,则先单独发送一个指示信息通知接收端到控制信道上接收新的控制信息,接收端即可在新的控制信息指示的资源上接收该准备发送的数据包。本发明下述实施例以指示信息承载在数据信息中进行复用发送为例来说明。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.
发送端流程如下:The sending process is as follows:
步骤400:发送端检测静默期是否到来,在检测到静默期到来时,发送用于指示静默期到来的指示信息;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;
步骤401:发送端没有检测到静默期到来,即处于激活期时,如果需要发送数据,判断需要发送的数据包是否是激活期的第一个数据包,如果是则执行步骤403,否则执行步骤402;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;
步骤402:依据无线信道、数据量和负载等信息,决定是否需要改变MCS或资源分配,如果需要,则选择合理的MCS和资源,并设置指示信息以通知接收端接收控制信息,然后执行步骤403,否则执行步骤404;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;
步骤403:依据最新的MCS选择和资源分配方式,生成对应的控制信息,并将生成的控制信息在对应的控制信道发送;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;
步骤404:基于控制信息指示的MCS方式编码调制业务数据信息,并将编码调制后的业务数据信息在控制信息指示的资源上发送;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;
步骤405:判断在规定时刻是否接收到对应的反馈信息,如果没有则执行步骤406,否则执行步骤401;Step 405: Judging whether the corresponding feedback information is received at the specified time, if not, execute step 406, otherwise execute step 401;
步骤406:判断上次发送数据包时,是否发送了控制信息,如果是则执行步骤407,否则执行步骤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;
步骤407:判断上次发送的数据包是否为激活期第一个数据包,如果是则执行步骤403,否则执行步骤402。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.
对应于本发明实施例提出的控制信息发送的第二种技术方案,控制信息的接收方案有两种。这里以“在激活期,接收端在收到显式告知准备接收新控制信息的指示信息时,才切换到控制信道上监控并接收新控制信息”的接收方案为例来说明,接收端流程如下: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 :
步骤411:监测控制信息,如果监测到有效的控制信息,执行步骤412,否则返回步骤411继续监测控制信息;Step 411: monitor control information, if effective control information is detected, execute step 412, otherwise return to step 411 to continue monitoring control information;
步骤412:接收存储控制信息,并判断控制信息是否接收成功,如果失败则返回步骤411执行,否则执行步骤413;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;
步骤413:按照最新得到的控制信息在业务信道上接收数据业务,并基于接收到的最新控制信息对接收到的数据业务进行解调、解码等工作,发送相应的接收反馈信息;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;
步骤414:依据指示信息判断是否需要接收下一个控制信息,如果需要则执行步骤412,否则执行步骤415;Step 414: Judging whether to receive the next control information according to the instruction information, if necessary, execute step 412, otherwise execute step 415;
步骤415:判断是否接收到用于指示静默期到来的指示信息,即判断是否进入静默期,如果进入静默期执行步骤411,否则执行步骤413。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.
下面介绍可以进一步降低控制信息的实施例三:The following describes the third embodiment that can further reduce the control information:
用以说明本发明实施例提出的控制信息发送的第三种技术方案,具体参见图5所示,发送端流程如下: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:
步骤500:发送端检测静默期是否到来,在检测到静默期到来时,发送用于指示静默期到来的指示信息;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;
步骤501:发送端没有检测到静默期到来,即处于激活期时,如果需要发送数据,判断需要发送的数据包是否是激活期的第一个数据包,如果是执行步骤502,否则执行步骤504;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 ;
步骤502:依据无线信道、数据量和负载等信息,决定是否需要改变MCS或资源分配,如果需要则选择合理的MCS和资源,执行步骤503,否则,保持原来的MCS和资源,发送用于指示接收端接收数据信息的指示信息,执行步骤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;
步骤503:依据最新的MCS选择和资源分配方式,生成对应的控制信息,并将生成的控制信息在对应的控制信道发送;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;
步骤504:基于控制信息指示的MCS方式编码调制业务数据信息,并将编码调制后的业务数据信息在控制信息指示的资源上发送;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;
步骤505:判断在规定时刻是否接收到对应的反馈信息,如果没有则执行步骤506,否则返回步骤501执行;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;
步骤506:判断上次发送数据包时是否发送了控制信息,如果是则执行步骤502,否则返回步骤501执行。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.
对应于本发明实施例提出的控制信息发送的第三种技术方案,控制信息的接收方案有两种。这里以“接收端一直监控控制信道”的接收方案为例来说明,接收端流程如下: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:
步骤511:监测控制信息,如果监测到有效的控制信息,执行步骤512,否则执行步骤513;Step 511: monitor control information, if effective control information is detected, execute step 512, otherwise execute step 513;
步骤512:接收存储控制信息,并判断控制信息是否接收成功,如果失败则返回步骤511执行,否则执行步骤514;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;
步骤513:判断是否接收到用于指示接收端接收数据信息的指示信息,如果没有收到,则返回步骤511继续执行,否则执行步骤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;
步骤514:按照最新得到的控制信息在业务信道上接收数据业务,并基于接收到的最新控制信息对接收到的数据业务进行解调、解码等工作,发送相应的接收反馈信息;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;
步骤515:判断是否接收到用于指示静默期到来的指示信息,即判断是否进入静默期,如果发现进入静默期,则转到步骤511继续执行,否则执行步骤516;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;
步骤516:持续监测控制信道,如果监测到有效的控制信息,则执行步骤512,否则执行步骤514。Step 516: Continuously monitor the control channel, if valid control information is detected, go to step 512, otherwise go to step 514.
需要说明的是,对应于本发明实施例提出的控制信息发送的第三种技术方案,控制信息的接收也可以采用“在激活期,接收端在收到显式告知准备接收新控制信息的指示信息时,才切换到控制信道上监控并接收新控制信息”的方案。本领域技术人员可以类比图4接收端的流程得到,在此不再详述。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.
实施例四:Embodiment four:
用以说明本发明实施例提出的控制信息发送的第四种技术方案,在需要发送数据包时,判断是否需要改变MCS或资源分配,如果需要改变,则重新发送新的控制信息,否则仅发送业务数据信息。对应于本发明实施例提出的控制信息发送的第四种技术方案,控制信息的接收方案有两种。这里以“接收端一直监控控制信道”的接收方案为例来说明,具体过程参见图6所示,其发送端和接收端的流程比较简单,本领域技术人员类比上述三个实施例的流程即可得到,故在此不再详述。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.
同样,对应于本发明实施例提出的控制信息发送的第四种技术方案,控制信息的接收也可以采用“在激活期,接收端在收到显式告知准备接收新控制信息的指示信息时,才切换到控制信道上监控并接收新控制信息”的方案。本领域技术人员可以类比图4接收端的流程得到,在此不再详述。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.
本发明实施例提出的控制信息发送、接收方法,通过发送端显式告知接收端静默期到来,接收端在得知静默期到来后,从在业务信道上接收数据信息转为监视控制信道,当收到有效的控制信息(包括指示接收端接收数据信息的指示信息)时,表明激活期重新到来,此时,接收端开始转为监视并接收业务信道上的数据信息,不再监视控制信道。使得接收端不需要一直监视控制信道或业务信道,从而有效节省接收端的能源消耗。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.
本发明实施例提出的控制信息发送、接收方法,无需对用户进行分组操作,可以获得所有用户间的统计复用增益;无需额外的层3信令来对分组资源与分配操作进行配置;无需采用大功率发送控制信息,可以灵活选择是否采用波束赋形进行控制信息发送,不会提高系统整体干扰。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.
本发明实施例提出的控制信息发送、接收方法,对重传比例不敏感,不存在由于信道恶化带来的重传比例高导致需要很高比例的控制信息开销,从而导致系统容量急剧下降的问题,具备很好的鲁棒性和扩展性。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.
本发明实施例提出的控制信息发送、接收方法,无需对用户进行任何预先资源分配操作,首次传输和重传均可以动态调度,可以很好的适应系统负载和各个用户的无线信道变化;很灵活的在下行控制信息开销和AMC增益之间取得动态折中,在全动态AMC和固定MCS方式之间灵活选择,并且代价最小,能够取得与传统方案的高度兼容性。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.
本发明实施例提出的控制信息发送、接收方法,如果应用于HSDPA系统,除了本发明实施例提出的控制信息发送、接收方法中应用Scalable AMC的发送端显式指示方式的方法外,不需要对现有HSDPA协议做出任何的修改,也无需对信道结构做出任何修改,可以与其他业务很好共存,不会增加系统复杂度,具备很好的兼容性;当然本发明实施例提出的控制信息发送、接收方法也可以应用到其他任何相关系统。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.
本发明实施例提出的控制信息发送、接收方法,可以在不影响业务和系统性能的前提下,有效降低控制信息的开销,提高了系统容量,具备很强的扩展能力,能够在不同的情况下获得最佳的折中。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.
根据本发明技术方案的实施例,本发明这里提供了实施该技术方案的第一种控制信息发送装置,如图7所示,该控制信息发送装置70包括:第一指示信息发送单元72,用于在不早于每一个激活期的最后一个数据信息发送时,发送用于指示静默期到来的指示信息。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.
该控制信息发送装置70还包括:第一指示信息承载单元71,用于将所述第一指示信息发送单元72发送的指示信息承载于激活期的最后一个数据信息中。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.
控制信息生成单元73,用于在下一个激活期到来时,生成该激活期的控制信息;控制信息发送单元74,用于在不迟于该激活期第一个数据信息发送时,将所述控制信息生成单元73生成的控制信息在对应的控制信道上发送。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.
判断单元75,用于在发送包含该激活期第二个数据信息的后续每一个数据信息时,判断是否需要改变该激活期的控制信息;控制信息生成单元73在判断单元75判断出准备发送后续一个数据信息需要改变该激活期的控制信息时,生成该激活期的新控制信息;控制信息发送单元74将所述控制信息生成单元73生成的新控制信息在对应控制信道上发送。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.
该控制信息发送装置70还包括第二指示信息发送单元77,用于在所述控制信息生成单元73生成的新控制信息发送前,发送用于指示接收端接收新控制信息的指示信息;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;
第二指示信息承载单元76,用于将所述第二指示信息发送单元77发送的指示信息承载于该准备发送的数据信息中。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.
根据本发明技术方案的实施例,本发明这里提供了实施该技术方案的第一种控制信息接收装置,如图8所示,该控制信息接收装置包括:第一指示信息判断单元81,用于判断是否接收到用于指示静默期到来的指示信息;切换接收单元82,用于在第一指示信息判断单元81判断出接收到用于指示静默期到来的指示信息时,转换到对应的控制信道上监控并接收下一激活期的控制信息。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.
第一指示信息判断单元81依据本激活期的控制信息在业务信道上监控并接收数据信息;以及判断接收的数据信息中是否包含用于指示静默期到来的指示信息。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.
切换接收单元82在接收到所述下一激活期的控制信息后,基于该接收到的控制信息转换到业务信道上监控并接收下一激活期的数据信息。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.
该控制信息接收装置还包括:第二指示信息判断单元83,用于判断是否接收到用于指示接收端接收新控制信息的指示信息;切换接收单元82在第二指示信息判断单元83判断出接收到用于指示接收端接收新控制信息的指示信息时,转换到对应的控制信道上监控并接收新控制信息;切换接收单元82在接收到所述新控制信息后,基于该接收到的新控制信息转换到业务信道继续接收数据信息。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.
第二指示信息判断单元83判断所述接收的数据信息中是否包含用于指示接收端接收新控制信息的指示信息。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.
根据本发明技术方案的实施例,本发明这里提供了实施该技术方案的第三种控制信息发送装置,如图9所示,该控制信息发送装置90包括:第一指示信息发送单元92,用于在不早于每一个激活期的最后一个数据信息发送时,发送用于指示静默期到来的指示信息。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.
该控制信息发送装置90还包括:第一指示信息承载单元91,用于将所述第一指示信息发送单元92发送的指示信息承载于激活期的最后一个数据信息中。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.
第一判断单元93,用于在下一个激活期到来时,判断该激活期的控制信息相对于前一个激活期的控制信息是否需要改变;控制信息生成单元94,用于在第一判断单元93判断出需要改变时,生成该激活期的控制信息;控制信息发送单元95,用于在不迟于该激活期第一个数据信息发送时,将所述控制信息生成单元94生成的控制信息在对应的控制信道上发送;第二指示信息发送单元96,用于在第一判断单元93判断出不需要改变时,在不迟于该激活期第一个数据信息发送时,发送用于指示接收端接收数据信息的指示信息。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.
该控制信息发送装置90还包括:第二判断单元97,用于在发送包含该激活期第二个数据信息的后续每一个数据信息时,判断是否需要改变该激活期的控制信息;控制信息生成单元94在第二判断单元97判断出准备发送后续一个数据信息需要改变该激活期的控制信息时,生成该激活期的新控制信息;控制信息发送单元95将所述控制信息生成单元94生成的新控制信息在对应的控制信道上发送。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.
该控制信息发送装置90还包括:第三指示信息发送单元99,用于在所述控制信息生成单元94生成的新控制信息发送前,发送用于指示接收端接收新控制信息的指示信息;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;
该控制信息发送装置90还包括:第三指示信息承载单元98,用于将所述第三指示信息发送单元99发送的指示信息承载于该准备发送的数据信息中。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.
根据本发明技术方案的实施例,本发明这里提供了实施该技术方案的第二种控制信息接收装置,如图10所示,该控制信息接收装置包括:第一指示信息判断单元101,用于判断是否接收到用于指示静默期到来的指示信息;切换接收单元102,用于在第一指示信息判断单元101判断出接收到用于指示静默期到来的指示信息时,转换到对应的控制信道上监控并接收下一激活期的控制信息。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.
第二指示信息判断单元103,用于判断是否接收到用于指示接收端接收数据信息的指示信息;所述切换接收单元102在第二指示信息判断单元103判断出接收到用于指示接收端接收数据信息的指示信息后,基于所述下一激活期的前一个激活期最后接收的控制信息转换到对应的业务信道上接收所述下一激活期的数据信息。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.
第一指示信息判断单元101依据本激活期的控制信息在业务信道上监控并接收数据信息;以及判断接收的数据信息中是否包含用于指示静默期到来的指示信息。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.
切换接收单元102在接收到所述下一激活期的控制信息后,基于该接收到的控制信息转换到业务信道上接收所述下一激活期的数据信息。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.
该控制信息接收装置还包括:第三指示信息判断单元104,用于判断是否接收到用于指示接收端接收新控制信息的指示信息;切换接收单元102在第三指示信息判断单元104判断出接收到用于指示接收端接收新控制信息的指示信息时,转换到对应的控制信道上监控并接收新控制信息;切换接收单元102在接收到所述新控制信息后,基于该接收到的新控制信息转换到业务信道继续接收数据信息。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.
第三指示信息判断单元104判断所述接收的数据信息中是否包含用于指示接收端接收新控制信息的指示信息。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.
根据本发明技术方案的实施例,本发明这里提供了实施该技术方案的一种控制信息传输系统,如图11所示,包括控制信息发送设备111及控制信息接收设备112,其中控制信息发送设备111包括: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:
第一指示信息发送单元1111,用于在不早于每一个激活期的最后一个数据信息发送时,发送用于指示静默期到来的指示信息;控制信息生成单元1112,用于在下一个激活期到来时,生成该激活期的控制信息;控制信息发送单元1113,用于在不迟于该激活期第一个数据信息发送时,将控制信息生成单元1112生成的控制信息在对应的控制信道上发送;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 ;
所述控制信息接收设备112包括:The control information receiving device 112 includes:
第一指示信息判断单元1121,用于判断是否接收到用于指示静默期到来的指示信息;切换接收单元1122,用于在第一指示信息判断单元1121判断出接收到用于指示静默期到来的指示信息时,转换到对应的控制信道上监控并接收下一激活期的控制信息。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.
根据本发明技术方案的实施例,本发明这里提供了实施该技术方案的另一种控制信息传输系统,如图12所示,包括控制信息发送设备121及控制信息接收设备122,其中控制信息发送设备121包括: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:
第一指示信息发送单元1211,用于在不早于每一个激活期的最后一个数据信息发送时,发送用于指示静默期到来的指示信息;第一判断单元1212,用于在下一个激活期到来时,判断该激活期的控制信息相对于前一个激活期最后发送的控制信息是否需要改变;控制信息生成单元1213,用于在第一判断单元1212判断出需要改变时,生成该激活期的控制信息;控制信息发送单元1214,用于在不迟于该激活期第一个数据信息发送时,将控制信息生成单元1213生成的控制信息在对应的控制信道上发送;第二指示信息发送单元1215,用于在第一判断单元1212判断出不需要改变时,在不迟于该激活期第一个数据信息发送时,发送用于指示接收端接收数据信息的指示信息;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;
所述控制信息接收设备122包括:The control information receiving device 122 includes:
第一指示信息判断单元1221,用于判断是否接收到用于指示静默期到来的指示信息;切换接收单元1222,用于在第一指示信息判断单元1221判断出接收到用于指示静默期到来的指示信息时,转换到对应的控制信道上监控并接收下一激活期的控制信息;第二指示信息判断单元1223,用于判断是否接收到用于指示接收端接收数据信息的指示信息;所述切换接收单元1222在第二指示信息判断单元1223判断出接收到用于指示接收端接收数据信息的指示信息时,基于所述下一激活期的前一个激活期最后接收的控制信息转换到对应的业务信道上接收所述下一激活期的数据信息。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.
显然,本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也意图包含这些改动和变型在内。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.
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