WO2017215368A1 - 调整帧结构的方法、网络设备与终端 - Google Patents

调整帧结构的方法、网络设备与终端 Download PDF

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Publication number
WO2017215368A1
WO2017215368A1 PCT/CN2017/083590 CN2017083590W WO2017215368A1 WO 2017215368 A1 WO2017215368 A1 WO 2017215368A1 CN 2017083590 W CN2017083590 W CN 2017083590W WO 2017215368 A1 WO2017215368 A1 WO 2017215368A1
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WIPO (PCT)
Prior art keywords
terminal
frame structure
network device
processor
information
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PCT/CN2017/083590
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English (en)
French (fr)
Inventor
权威
陈雁
李荣鹏
徐修强
王磊
杜颖钢
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华为技术有限公司
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Publication of WO2017215368A1 publication Critical patent/WO2017215368A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • Embodiments of the present application relate to the field of communication technologies, and more specifically, to a method of dynamically adjusting a frame structure.
  • the current wireless communication technology has been developed into a long-term evolution (English term: Long Term Evolution; English abbreviation: LTE) system, taking FIG. 1 as an example.
  • the existing LTE system includes multiple cells, each of which has A network device 11 and a plurality of terminals 12, the network device 11 transmits common control information and data to the terminal 12, and reference signals for detecting common control information and data.
  • the network device sends signals to the terminal and the terminal sends signals to the network device to utilize independent resources.
  • the independent resources may be the same time but different frequencies, that is, frequency division duplex (English full name: Frequency Division Duplexing; English abbreviation: FDD), or at the same frequency but at different times, instant duplex (English full name: Time Division Duplexing; English abbreviation: TDD).
  • frequency division duplex English full name: Frequency Division Duplexing; English abbreviation: FDD
  • instant duplex English full name: Time Division Duplexing; English abbreviation: TDD
  • full-duplex (English full name: Ful l Duplex; English abbreviation: FD) technology came into being.
  • full-duplex uses the same spectrum on the transceiver channel that works simultaneously.
  • the same frequency can double the spectrum efficiency.
  • the transmission signal of the network device itself overlaps with the signal transmitted by the terminal and the power is much larger than the signal of the terminal, the signal of the terminal forms self-interference.
  • the prior art effectively suppresses self-interference signals by means of antenna isolation, analog cancellation and digital cancellation and other self-interference cancellation techniques.
  • an existing method is to set up a flexible subframe in the existing frame structure, and place it after the uplink subframe and before the downlink subframe, it can serve as an uplink sub-frame.
  • the frame may also be used as a downlink subframe.
  • the special subframe S is used to indicate whether the flexible subframe is an uplink subframe or a downlink subframe.
  • flexible subframes in this mode require that all terminals must be uplink or both downstream, so they are not flexible enough.
  • Embodiments of the present invention provide a method, a network device, and a terminal for adjusting a frame structure.
  • an embodiment of the present application provides a method for adjusting a frame structure, including: a terminal sending a frame structure change request to a network device, the terminal serving as a terminal of the network device; the frame structure change request is used for requesting The network device changes the frame structure currently used by the terminal; in case the network device agrees to change the frame structure currently used by the terminal, the terminal receives response information from the network device, where the response information includes a message indicating that the terminal uses the new frame structure. information.
  • the response information is specifically sent for the terminal, so that each terminal can dynamically adjust the frame structure independently and improve communication efficiency.
  • the terminal After receiving the response message, the terminal communicates with the network device using a new frame structure.
  • the terminal sends a frame structure change request to the network device to further include information about a new frame structure that the terminal desires to use.
  • the network device may determine whether to agree to use the desired new frame structure by the terminal, and if yes, the response message carries information indicating that the terminal uses the desired new frame structure, if not If yes, the response message carries information indicating that the new frame structure is not expected to be used by the terminal. For example, one bit in the response message indicates whether or not to agree to the terminal. The desired new frame structure. Further, when the one bit indicates that the terminal does not agree to use the desired new frame structure, it may also indicate that the terminal does not agree to the frame structure change.
  • the advantage of this design is that the signaling is very simple and the overhead is small.
  • the response information also includes the time at which the frame structure change starts, and the terminal changes the frame structure to a new frame structure to communicate with the network device at the start of the frame structure change.
  • the terminal receives another response information from the network device, where the other response information includes indicating that the terminal does not intend to change the current use.
  • the structure of the frame structure For example, another bit of the response information indicates a frame structure change request that does not agree with the terminal.
  • the terminal communicates with the network device using the current frame structure.
  • another response message includes information of a new frame structure, and the new frame structure is consistent with the frame structure currently used by the terminal. After receiving the other response message, the terminal knows that the network device does not agree to change the frame structure currently used by the terminal.
  • the information of the new frame structure is the index value of the new frame structure. Since the index value is relatively simple, you can save traffic.
  • the frame structure change request sent by the terminal to the network device is sent when the terminal determines that the currently used frame structure does not meet the needs of the terminal.
  • the frame structure currently used by the terminal does not meet the needs of the terminal, and specifically includes: the frame structure currently used by the terminal is not suitable for the service of the terminal, or the service of the terminal, the location of the terminal, the interference received by the terminal, and the channel quality of the terminal or Multiple parameters have changed. In this way, the terminal can have more freedom to select its own frame structure.
  • the new frame structure is used by the network device after receiving the frame structure change request sent by the terminal, according to the service type of the terminal, the location information of the terminal, the channel quality, the interference of the terminal, and the load of the network device.
  • One or more parameters are determined by the terminal.
  • the network device can independently schedule the frame structure for each terminal, so that each terminal can find a suitable frame structure, which can significantly improve system performance.
  • an embodiment of the present application provides a method for adjusting a frame structure, including: receiving, by a network device, a frame structure change request sent by a terminal, where the terminal is a terminal served by the network device, and a frame structure change request is used for The network device is requested to change the frame structure currently used by the terminal; in case the network device agrees to change the frame structure currently used by the terminal, the network device sends a response message to the terminal, where the response information includes information indicating that the terminal uses the new frame structure.
  • the network device communicates with the terminal using a new frame structure after the terminal receives the response message.
  • the frame structure change request contains information about the new frame structure that the terminal desires to use.
  • the response message carries information that agrees to the new frame structure that the terminal desires to use.
  • the response information indicates with one bit whether or not the terminal agrees to use the desired new frame structure. Further, when the one bit indicates that the terminal does not agree to use the desired new frame structure, it may also indicate that the terminal does not agree to the frame structure change.
  • the network device determines whether the new frame structure is a change to the frame structure of the terminal to a new frame structure desired by the terminal, and if it does not agree, it needs to determine other new frame structures.
  • the network device also determines the start time of the frame structure change, and the response information also includes the time when the frame structure change starts, and the network device changes the frame structure to a new time at the start of the frame structure change.
  • the frame structure communicates with the terminal.
  • the network device if the network device does not agree to change the frame structure currently used by the terminal, the network device communicates with the terminal using the current frame structure.
  • the network device if the network device does not agree to change the frame structure currently used by the terminal, the network The network device sends another response message to the terminal, wherein the other response information includes information indicating that the terminal structure is not used to change the currently used frame. For example, another bit of the response information indicates a frame structure change request that does not agree with the terminal.
  • another response message includes information of a new frame structure, and the new frame structure is consistent with the frame structure currently used by the terminal.
  • the network device after receiving the frame structure change request sent by the terminal, receives one or more of the service type of the terminal, the location information of the terminal, the channel quality of the terminal, the interference of the terminal, and the load of the network device.
  • the parameters determine whether the terminal agrees to the frame structure change request, and if so, the network device also determines a new frame structure.
  • the information of the new frame structure is the index value of the new frame structure.
  • an embodiment of the present application provides a method for adjusting a frame structure, where an adjustment frame structure is initiated by a network device, where the method includes: determining, by the network device, a new frame structure for the terminal, where the terminal is the network A terminal served by the device; the network device sends information to the terminal indicating that the terminal uses the new frame structure.
  • the network device can actively schedule the frame structure independently for each terminal, so that each terminal can find a suitable frame structure, which can significantly improve system performance.
  • the network device determines a new frame structure for the terminal, which is determined when the network device determines that the current frame structure of the terminal does not satisfy the needs of the terminal or the network device.
  • the current frame structure does not meet the requirements of the terminal or the network device, and specifically includes: the frame structure currently used by the terminal is not suitable for the service of the terminal, or the service of the terminal, the location of the terminal, the interference of the terminal, and the channel quality of the terminal, and the network.
  • the frame structure currently used by the terminal is not suitable for the service of the terminal, or the service of the terminal, the location of the terminal, the interference of the terminal, and the channel quality of the terminal, and the network.
  • One or more parameters in the load of the device change.
  • determining a new frame structure for the terminal is specifically: one or more of a service type of the network device according to the terminal requirement, location information of the terminal, channel quality of the terminal, interference of the terminal, and load of the network device.
  • the parameter determines the new frame structure for the terminal.
  • the network device communicates with the terminal using the new frame structure after the terminal receives the information indicating that the terminal uses the new frame structure.
  • the network device also determines the start time of the frame structure change, and the information indicating that the terminal uses the new frame structure further includes the time when the frame structure change starts, and the network device changes the frame structure.
  • the initial time changes the frame structure to a new frame structure to communicate with the terminal.
  • the new frame structure information is the index value of the new frame structure.
  • the terminal sends a response message to the network device agreeing to adopt a new frame structure or rejecting the new frame structure.
  • an embodiment of the present application provides a method for adjusting a frame structure, where the method includes: receiving, by a terminal, information sent by the network device to the terminal, indicating that the terminal uses a new frame structure, where the terminal is the network device A terminal for services.
  • the terminal communicates with the network device using the new frame structure after receiving the information indicating that the terminal uses the new frame structure.
  • the new frame structure information is the index value of the new frame structure.
  • the terminal sends a response message to the network device agreeing to adopt a new frame structure or rejecting the new frame structure.
  • the information indicating that the terminal uses the new frame structure further includes the time when the frame structure change starts, and the terminal changes the frame structure to a new frame structure at the time when the frame structure change starts.
  • an embodiment of the present application provides a terminal that initiates a change frame structure, where the terminal is a terminal served by a network device, including an antenna, a transmitter, a receiver, a memory, and a processor, and an antenna, a transmitter, and a receiver.
  • the processor is coupled to the transmitter, the receiver, and the memory; the memory is configured to store program code executable by the processor; and when the program code is executed by the processor, the processor is configured to Generating a frame structure change request and transmitting it to the transmitter; the transmitter is configured to send a frame structure change request from the processor to the network device through the antenna, and the frame structure change request is used to request the network device to change the frame structure currently used by the terminal; In the case that the device agrees to change the frame structure currently used by the terminal, the receiver is configured to receive response information from the network device through the antenna and transmit the response information to the processor, where the response information includes information indicating that the terminal uses the new frame structure; When executed by the processor, the processor is also operative to process based on the response information.
  • the processor is configured to process according to the response information, the processor is configured to instruct the transmitter and the receiver to communicate with the network device through the antenna according to a new frame structure.
  • the frame structure change request contains information about the new frame structure that the terminal desires to use.
  • the network device may determine whether to agree to use the desired new frame structure by the terminal, and if agreed, the response message carries information indicating that the terminal is allowed to use the desired new frame structure. For example, the response information indicates with one bit whether or not the terminal agrees to use the desired new frame structure. Further, when the one bit indicates that the terminal does not agree to use the desired new frame structure, it may also indicate that the terminal does not agree to the frame structure change.
  • the response information further includes a time when the frame structure change starts, and the processor is configured to instruct the transmitter and the receiver to communicate with the network device through the antenna according to the new frame structure at the time when the frame structure change starts.
  • the receiver is configured to receive another response information from the network device through the antenna and transmit it to the processor, and the other response information includes Disagree to change the information of the frame structure currently used by the terminal; the processor is used to process according to another response message.
  • another response message indicates a frame structure change request that does not agree with the terminal by one bit.
  • the processor is configured to process according to another response information for the processor to instruct the transmitter and the receiver to communicate with the network device through the antenna according to the currently used frame structure.
  • another response message includes information of a new frame structure, and the new frame structure is consistent with the frame structure currently used by the terminal.
  • the information of the new frame structure is the index value of the new frame structure.
  • the memory is also used to store various frame structures and index values corresponding to various frame structures.
  • the processor is configured to generate a frame structure change request when the frame structure currently used by the terminal does not meet the needs of the terminal, for example, the frame structure currently used by the terminal is not suitable for the service of the terminal, or the service of the terminal.
  • the new frame structure is after the network device receives the frame structure change request sent by the terminal, according to the service type of the terminal, the location information of the terminal, the channel quality of the terminal, the interference of the terminal, and the load of the network device.
  • One or more parameters in the determination are determined by the terminal.
  • an embodiment of the present application provides a network device responsive to a change frame structure, including an antenna, a transmitter, a receiver, a memory, and a processor, an antenna coupled to a transmitter and a receiver, a processor and a transmitter, a receiver, a memory coupling; a memory for storing program code executable by the processor; and a receiver for receiving a frame structure change request from the terminal through the antenna and transmitting the same to the processor, wherein the terminal serves one of the network devices
  • the frame structure change request is used to request the network device to change the frame structure currently used by the terminal; when the program code is executed by the processor, the processor is configured to generate a response message if the processor agrees to change the frame structure currently used by the terminal.
  • transmitting the response information to the sender the response information includes information indicating that the terminal uses the new frame structure; the transmitter For transmitting response information from the processor to the terminal through the antenna.
  • the network device communicates with the terminal using a new frame structure after the terminal receives the response message.
  • the frame structure change request contains information about the new frame structure that the terminal desires to use.
  • the response information when the new frame structure is consistent with the new frame structure that the terminal desires to use, the response information carries information that agrees to the new frame structure that the terminal desires to use. For example, the response information indicates with one bit whether or not the terminal agrees to use the desired new frame structure. Further, when the one bit indicates that the terminal does not agree to use the desired new frame structure, it may also indicate that the terminal does not agree to the frame structure change.
  • the processor also determines the start time of the frame structure change, and the generated response information also includes the start time of the frame structure change, and the processor is used to indicate that the transmitter and the receiver change the start of the frame structure. The time communicates with the terminal through the antenna in accordance with the new frame structure.
  • the processor is configured to instruct the transmitter and the receiver to communicate with the network device through the antenna according to the currently used frame structure.
  • the processor does not agree to change the frame structure currently used by the terminal, another response information is sent to the transmitter and sent to the terminal through the antenna, and the other response information is included to indicate that the terminal does not agree to change the current Information about the frame structure used.
  • another bit of the response information indicates a frame structure change request that does not agree with the terminal.
  • another response message includes information of a new frame structure, and the new frame structure is consistent with the frame structure currently used by the terminal.
  • the processor is further configured to: after receiving the frame structure change request sent by the terminal from the receiver, the service type according to the terminal requirement, the location information of the terminal, the channel quality of the terminal, the interference of the terminal, and the network One or more parameters in the load of the device determine if the terminal agrees to the frame structure change request, and if so, the processor is further configured to determine a new frame structure.
  • the processor determines whether the new frame structure agrees to change the frame structure of the terminal to a new frame structure desired by the terminal, and if it does not agree, it needs to determine other new frame structures.
  • the information of the new frame structure is the index value of the new frame structure.
  • the memory is also used to store various frame structures and index values corresponding to various frame structures.
  • an embodiment of the present application provides a network device that initiates a change frame structure, including an antenna, a transmitter, a memory, and a processor, the antenna is coupled to a transmitter, the processor is coupled to the transmitter and the memory, and the memory is used to Storing program code executable by the processor; when the program code is executed by the processor, the processor is configured to determine a new frame structure for the terminal, and generate information for instructing the terminal to use the new frame structure, which is used to indicate the terminal usage
  • the information of the new frame structure is transmitted to the transmitter, which is a terminal served by the network device; the transmitter is configured to send the information for indicating the terminal to use the new frame structure to the terminal through the antenna.
  • the processor determines a new frame structure for the terminal, which is determined when the processor determines that the current frame structure does not meet the needs of the terminal or the network device. For example, the frame structure currently used by the terminal is not suitable for the service of the terminal. Or, one or more parameters of the service of the terminal, the location of the terminal, the interference of the terminal, the channel quality of the terminal, and the load of the network device change.
  • the processor determines a new frame structure for the terminal, specifically: the service type according to the terminal requirement, the location information of the terminal, the channel quality of the terminal, the interference of the terminal, the load of the network device, or A plurality of parameters determine a new frame structure for the terminal.
  • the network device further includes a receiver coupled to the antenna and the processor, The processor is configured to instruct the transmitter and the receiver to communicate with the network device through the antenna using a new frame structure after the terminal receives the information indicating that the terminal uses the new frame structure.
  • the new frame structure information is the index value of the new frame structure.
  • the memory is also used to store various frame structures and index values corresponding to various frame structures.
  • the processor further determines a time when the frame structure change starts, and the generated information for indicating that the terminal uses the new frame structure further includes a time when the frame structure change starts, and the processor is used to indicate sending.
  • the receiver and the receiver communicate with the terminal through the antenna in accordance with the new frame structure at the start of the frame structure change.
  • the network device further includes a receiver coupled to the antenna and the processor for receiving response information from the terminal through the antenna and transmitting the response information to the processor, wherein the response information is for the terminal to agree or reject the change.
  • Current frame structure
  • the terminal sends response information to the network device agreeing to adopt a new frame structure or rejecting the new frame structure.
  • an embodiment of the present application provides a terminal that receives a frame structure change, including: an antenna, a receiver, a memory, and a processor, the antenna is coupled to the receiver, the processor is coupled to the receiver and the memory, and the memory is configured to store a program code executable by the processor; the receiver receives, by the antenna, information transmitted by the network device for instructing the terminal to use a new frame structure, the terminal being a terminal of the network device service; when the program code is executed by the processor, The processor is configured to process information transmitted by the receiver for instructing the terminal to use the new frame structure.
  • the terminal further includes a transmitter, the transmitter is coupled to the antenna and the processor, and the processor is configured to process the information transmitted by the receiver for instructing the terminal to use the new frame structure, including: the processor is used to indicate the transmitter. And the receiver communicates with the network device through the antenna according to the new frame structure.
  • the new frame structure information is the index value of the new frame structure.
  • the memory is also used to store various frame structures and index values corresponding to various frame structures.
  • the information indicating that the terminal uses the new frame structure further includes a time when the frame structure change starts, and the processor is configured to instruct the transmitter and the receiver to follow the start time of the frame structure change.
  • the new frame structure communicates with the terminal through the antenna.
  • the terminal further includes a transmitter, the transmitter is coupled to the antenna and the processor, and the processor is further configured to generate response information that agrees to adopt a new frame structure or rejects the new frame structure, and transmits the response information to the transmitter.
  • the antenna is sent to the network device.
  • the antennas in the above fifth to eighth aspects may be a single antenna or a multiple antenna.
  • the response information, the other response information, or the information used to indicate that the terminal uses the new frame structure may be an independent message, or may be carried by an uplink and downlink scheduling control channel or RRC signaling.
  • the interference of the terminal in the above aspects includes interference received by the terminal and/or interference to other terminals.
  • the network device in the above aspects may be a base station, or may be other network side devices having similar functions of the base station.
  • the current frame structure may be a default frame structure.
  • the response information, another response information, or information indicating that the terminal adopts a new frame structure is separately sent by a terminal served by the network device, if it is a group of terminals to which the network device serves (not If all the terminals are uniformly changed, the response information, another response information, or the information indicating that the terminal adopts the new frame structure may include information indicating the terminal group or by transmitting on the shared resource corresponding to the group of terminals.
  • the method and principle of changing the frame structure for the unified frame structure change of this group of terminals is consistent with the method and principle of changing the frame structure of a terminal.
  • each terminal can perform dynamic frame structure adjustment with the network device, and different terminals in the same network device can simultaneously communicate with the network device by using different frame structures, thereby meeting the requirements of different terminals.
  • the full-duplex processing capability of the network device can be maximized, and the frame structure adopted by each terminal is more suitable for the needs of the terminal, and the system resources are effectively utilized.
  • FIG. 1 is a schematic structural diagram of an LTE system
  • Figure 2 is a flexible subframe diagram
  • FIG. 3 is a schematic diagram of a terminal trigger frame structure change process
  • Figure 4 is a schematic diagram of adjacent terminal interference
  • Figure 5 is a schematic diagram of the terminal trigger frame structure change process (the change request contains the information of the desired frame structure)
  • FIG. 6 is a schematic diagram of a network device trigger frame structure change process
  • Figure 7 is a schematic diagram of the structure of the network device and the terminal
  • the network device and the uplink and downlink configurations of all the terminals are the same, that is, the same frame structure is adopted between the network device and each terminal.
  • the network device is a base station, but may also be other forms of network side devices having similar functions, such as distributed antennas, distributed transmission points, and the like.
  • the network device adopts full duplex, and the terminal adopts half duplex.
  • Different terminals served by the same network device can simultaneously communicate with the network device by using different frame structures, and the frame structure used for each terminal can be independent.
  • the uplink and downlink configurations are performed, that is, different uplink and downlink configurations may exist in the frame structure used by different terminals. Since the uplink and downlink are the same frequency, the LTE-TDD mode may be referred to more. In this scenario, how to negotiate to change the frame structure of the terminal to effectively optimize the system resource configuration is a problem solved by the present invention.
  • a default frame structure can be specified, which does not require the network device to notify the terminal or the network device to negotiate with the terminal.
  • the network device uses a predetermined time slot and period to send a synchronization signal to the terminal, the initial access of the receiving terminal, the capability negotiation with the terminal, or the capability confirmation with the terminal, to ensure a new one.
  • the terminal can be accessed at any time through the default frame structure without being negotiated with the network device.
  • the default frame structure may be the frame structure specified by the existing LTE-TDD, or may be newly defined.
  • the default frame structure may be a frame structure corresponding to any index value in Table 1, where the length of the frame may be the same as the length of the frame in the LTE-TDD (of course, the new frame length may be redefined as needed) That is, each subframe includes 10 subframes, and the network device and the terminal can save the index values corresponding to the frame structure and the frame structure defined in Table 1.
  • different default frame structures can also be set according to different frequency bands, and are not described here.
  • the index values 0 to 6 correspond to the existing frame structure of the existing LTE-TDD
  • the index values 7 to (n-1) correspond to n-7 types of frame structures that may be added in the future
  • the frame structures x and x+1 Represents any two adjacent frame structures in the n-1 frame structure.
  • n does not necessarily need to be greater than 6, that is, it is not necessary to adopt all the frame structures in the existing LTE-TDD.
  • n can also be 1, that is, only one frame structure is specified and As the default frame structure.
  • the subframes for the synchronization signal transmission are configured to be downlink, for example, the transmission synchronization signal can be configured in the 0th subframe and the 5th subframe.
  • the transmission synchronization signal can be configured in the 0th subframe and the 5th subframe.
  • the network device can independently schedule the frame structure for each terminal, so that each terminal can find a suitable frame structure, which can significantly improve system performance.
  • the network device and the terminal communicate according to the frame structure determined by the negotiation result.
  • the network device can flexibly adjust the frame structure of the terminal according to the requirements of the terminal.
  • the network device may be a network side device, such as a base station, or may be a terminal.
  • a terminal as a transmitter assumes the role of a network device.
  • a method for flexibly adjusting a full-duplex frame structure includes: after establishing a connection according to a default frame structure, or during communication, the network device and the terminal negotiate to change the frame structure of the terminal.
  • the current frame structure is the frame structure j in Table 1 (0 ⁇ j ⁇ n-1, the frame structure may be a default frame structure, or may be a previously adjusted frame structure), and the network device negotiates with the terminal.
  • the response information or the information indicating that the terminal adopts the new frame structure may include information indicating the terminal group or
  • the transmission on the shared resource corresponding to the group terminal indicates that this is a change of the frame structure uniformly performed by the group of terminals, and the method and principle of changing the frame structure are consistent with the method and principle of changing the frame structure of one terminal. Without loss of generality, this application takes a terminal as an example.
  • the frame structure change request may be initiated by the terminal.
  • the terminal 100 in FIG. 3 is any terminal served by the network device 200 (note that any terminal here, that is, different terminals serving the network device can perform independent processing), in step 301.
  • the terminal 100 sends a frame structure change request to the network device 200 when the currently used frame structure does not meet the requirement, and the frame structure change request is used to request the network device 200 to change the frame structure currently used by the terminal, and may also be named.
  • step 302 after receiving the frame structure change request sent by the terminal 100, the network device 200 determines whether to agree to change the frame structure currently used by the terminal 100, and sends a response message to the terminal 100 in step 303, if the network device If the change is 200, the response information includes information indicating that the terminal 100 uses the new frame structure. If the network device 200 does not agree to the change, the response information includes the network device 200 for indicating that the network device 200 does not agree to the change. Information about the frame structure currently used by the terminal 100. Then in step 304, the network device 200 and the terminal 100 follow the frame structure confirmed in the response message. Communication.
  • the current frame structure of the terminal does not meet the needs of the terminal.
  • the default frame structure currently used by the terminal is not suitable for the service of the terminal, or the service of the terminal, the location of the terminal, or the location of the terminal in the process of communicating with the network device.
  • the interference received by the terminal and one or more parameters of the channel quality of the terminal are changed, and the like.
  • the default frame structure currently used by the terminal is the frame structure x+1
  • most of the subframes are allocated to the downlink under the x+1 frame structure, but if the current service is initiated by the terminal.
  • the terminal may send a frame structure change request to the network device, requesting the network device to change the frame structure of the terminal to a new desired by the terminal.
  • Frame structure 0 or other frame structure suitable for the current service of the terminal As another example, as shown in FIG.
  • the terminal A and the terminal B can send a frame structure change request to the network device, and the terminal A requests the frame.
  • the structure is changed to frame structure 2 or only the frame structure is changed, and terminal B also requests to change the frame structure to frame structure x+1 or only request to change the frame structure.
  • the frame structure may be uniformly adjusted to the frame structure 2, or the frame structure may be selected to be adjusted to the frame structure x+1, and the terminal A and the terminal B may be selected to select a new identical frame structure, respectively, to notify the terminal A and terminal B, in this way, both terminal A and terminal B communicate with the network device in the frame structure of the notification, and the frame structure can be synchronized, thereby reducing interference caused by changes in position and interference.
  • the terminal may actively initiate a frame structure change request to the network device according to the change of the service type, the interference of the terminal received by the terminal itself, or the change of the channel quality, or the location change, or other situations.
  • the terminal may further include information about a new frame structure desired by the terminal in the frame structure change request sent to the network device, that is, the terminal may actively tell the network device which frame structure is desired to be used by the network device.
  • the terminal may find a suitable frame structure (ie, a new frame structure desired by the terminal) in a frame structure index table similar to Table 1.
  • the so-called appropriate frame structure is that the terminal performs according to factors such as interference conditions and service types that the terminal receives.
  • the selection, and the information of the frame structure (for example, the index value of the frame structure) is sent to the network device together in the frame structure change request, as shown in FIG. 5, similar to the process shown in FIG.
  • the terminal 100 transmits the configuration to the network device 200.
  • the frame structure change request of the desired frame structure the network device confirms whether the request is approved in step 402, and sends a response message to the terminal 100 in step 403, the response message may be a request confirmation (see FIG. 5, the response message) Or the request confirmation may be 1 bit. It should be noted that the request confirmation may also be carried by multiple bits. For example, considering the coding and other factors, it is necessary to carry more.
  • the terminal 100 communicates with the network device 200 in step 404 according to the frame structure corresponding to the content requested for confirmation, that is, if it is agreed, the communication is performed according to the frame structure desired by the terminal. If it does not agree, it still communicates according to the current frame structure of the terminal.
  • the terminal may also not inform the network device of which frame structure to use, and the network device determines the appropriate frame structure for the terminal according to the service type of the terminal. For example, when the terminal initiates the service request, the terminal already knows the service required by the network device. Type, therefore, the terminal can also only send the frame structure change request without carrying the frame structure that the terminal expects to use.
  • the network device After receiving the frame structure change request sent by the terminal, the network device can be based on the load of the network device and the service type required by the terminal. And determining one or more of the parameters of the terminal location information, the channel quality, and the interference of the terminal obtained by the network device to determine a suitable new frame structure for the terminal, and it is noted that the terminal only needs to evaluate the interference received by the terminal. ,Internet equipment When assessing the interference situation, not only the interference received by the terminal but also the interference of the terminal to other terminals should be considered. Therefore, the term "interference of the terminal" is collectively referred to here (the same below). After receiving the frame structure change request sent by the terminal, the network device replies with a response message to the terminal whether or not the change is agreed.
  • the response message includes a message indicating that the terminal uses the new frame structure. information. If the network device does not agree to the change, or the newly determined frame structure is still the current frame structure, the response information includes information indicating that the frame structure currently used by the terminal is not changed.
  • the network device determines a new frame structure for the terminal, and the new frame structure is more suitable for the current service type or scenario of the terminal;
  • the network device determines to use the new frame structure desired by the terminal as a new frame structure
  • the network device determines a new frame structure for the terminal; the new frame structure is more suitable for the current terminal.
  • Business type or scenario If the frame structure change request includes a new frame structure desired by the terminal, but the network device does not agree, the network device determines a new frame structure for the terminal; the new frame structure is more suitable for the current terminal. Business type or scenario.
  • the network device After determining the new frame structure for the terminal, the network device sends a response message to the terminal. After receiving the response message, the terminal communicates with the network device using a new frame structure.
  • the response information sent by the network device to the terminal may simply carry information indicating that the terminal agrees or does not agree to use the desired new frame structure.
  • the ACK/NACK Choinese full name: acknowledgment/non-confirmation; English full name: Acknowledged/Not Acknowledged
  • the ACK signal indicates that the frame structure suggested by the terminal is agreed
  • the NACK indicates disagreement.
  • the new frame structure expected by the terminal Or whether to adopt a new frame structure desired by the terminal as a domain to be placed in the existing downlink control channel, so that only one bit is needed, for example, 1 for consent and 0 for disagreement.
  • the network device not only uses 0 to indicate that the frame structure is not expected by the terminal, but also indicates that the terminal does not agree to change the frame structure, that is, either adopts a new frame structure desired by the terminal, or Continuing with the current frame structure, Figure 5 shows this response.
  • This response is relatively simple, and of course lacks flexibility. It is a compromise between complexity and flexibility.
  • the network device includes a new uplink and downlink frame structure in the response message. Or the index of the new uplink and downlink frame structure.
  • the response information may be sent to the terminal through a separate message, or may be sent to the terminal in other messages, for example, directly included in the PDCCH (Chinese full name: downlink control physical channel; English full name: Physical Downlink Control Channel) and other uplink and downlink scheduling control Channel or RRC (Chinese full name: Radio Resource Control Layer; English full name: Radio Resource Control) signaling.
  • the network device may reject the frame structure change request if it does not agree to change after receiving the frame structure change request sent by the terminal. For example, if the network device determines that the frame structure cannot be changed according to one or more of the current load condition, the service of the terminal, the location, the interference condition, or the channel information, the frame structure change request may be rejected. In this case, The terminal still communicates with the network device according to the original frame structure. Or when the new frame structure confirmed by the network device is consistent with the original frame structure of the terminal, it also indicates that the network device does not agree with the change request.
  • the network device can send an index of the frame structure currently used by the terminal to the terminal by using the response information, and after receiving the message, the terminal finds the index value of the frame structure in the response information and the current use of the terminal.
  • the index value of the frame structure is the same, thereby determining that the network device rejects the request of the terminal to change the frame structure this time.
  • the network device For the above terminal only sending the frame structure change request without specifying the desired new frame structure, this is because the network device has more global information, which is beneficial to make the system more suitable for scheduling, and can also simplify the processing of the terminal. It is beneficial to extend the life of the terminal.
  • the terminal processing complexity is increased, but the terminal can obtain the most suitable frame structure and improve the user experience.
  • the frame structure change request may be initiated again.
  • the network device and the terminal change to the new frame structure in the next frame in which the response information is sent and received.
  • the network device may also determine the start time of the frame structure change, and include the time at which the frame structure change starts in the response information sent to the terminal, in which case the network device and the terminal change in the frame structure.
  • the starting time changes the frame structure to a new frame structure for communication.
  • the terminal initiates a frame structure change request as an example.
  • the frame structure change request may also be initiated by the network device.
  • the network device determines a new frame structure for the terminal when the current frame structure does not meet the needs of the terminal or the network device; the network device sends information to the terminal to instruct the terminal to use the new frame structure.
  • the current frame structure of the terminal does not meet the requirements of the terminal.
  • the current frame structure of the terminal does not meet the needs of the network device.
  • the main reason is that the load of the network device does not support the current frame structure of the terminal well. For example, when the network device is fully loaded, a new service is added.
  • the network device cannot maintain the frame structure of all the original terminals well, and needs to actively adjust the frame structure of one of the original terminals or a part of the terminals to achieve a new load balancing.
  • the network device determines a new frame structure for the terminal reference may also be made to the description of the first embodiment.
  • the frame structure of the current terminal A is frame structure 0, and most of the subframes in the frame structure are allocated to the uplink, but if the network device transmits a large-capacity service such as video to other terminals in the vicinity of the terminal A, this time
  • the network device can actively adjust the frame structure of the terminal A, and appropriately reduce its uplink transmission, for example, to the frame structure 2.
  • the terminal 100 is any terminal served by the network device 200 (note that any terminal, that is, different terminals serving the network device can perform independent processing), and the network device 200 can be based on the current terminal 100.
  • Determining the current frame of the terminal 100 by one or more of a service type (eg, a change in service type), location information of the terminal 100, channel quality of the terminal 100, interference of the terminal 100, load of the network device 200, or other conditions If the structure needs to be adjusted, the network device 200 actively initiates a change of the frame structure. For example, in step 501, information for instructing the terminal 100 to use the new frame structure (for example, an index value corresponding to the new frame structure) is directly transmitted to the terminal 100.
  • the information used to indicate that the terminal 100 uses the new frame structure may be sent to the terminal 100 through a separate message, or may be sent to the terminal 100 in other messages, for example, directly included in the uplink and downlink scheduling control channel of the PDCCH or the like.
  • RRC signaling Different from the uplink and downlink frame structure change request initiated by the terminal, the network device agrees, and the change initiated by the network device directly informs the terminal.
  • the terminal may also decide to agree or reject the changed response message, but considering that the network device has more global information and resource scheduling by the network device, this step is generally not recommended, which is also the terminal in step 502 in FIG.
  • the reason for the 'response to the information indicating the terminal using the new frame structure' is indicated by a broken line, indicating that the terminal generally does not adopt this step, but directly accepts the uplink and downlink frame structure changed by the network device, and then terminates in step 503. 100 communicates with the network device 200 in accordance with the changed new frame structure.
  • the network device and the terminal change to a new frame structure at the next frame that transmits and receives information indicating that the terminal uses the new frame structure.
  • the information sent by the network device to indicate that the terminal uses the new frame structure may further include a time when the frame structure change starts, in which case the network device and the terminal may The frame structure is changed to a new frame structure for communication at the start of the frame structure change.
  • FIG. 7 is a structural block diagram of communication between a terminal and a network device in Embodiment 1 of the present application. For convenience of description, only parts related to the embodiment of the present application are shown.
  • the terminal 100 shown in FIG. 7 includes an antenna 110, a transmitter 120, a receiver 130, a processor 140, and a memory 150.
  • Antenna 110 is used to transmit and receive signals and is coupled to transmitter 120 and receiver 130.
  • transmitter 120 and receiver 130 may also be combined into transceiver 160.
  • the memory 150 is coupled to the processor 150 for storing program code that can be executed by the processor 140 and various frame structures, and can also store an index table of various frame structures, and the processor 140 is configured to execute the code in the memory 150.
  • a frame structure change request is generated and transmitted to the transmitter 120.
  • the transmitter 120 is configured to send a frame structure change request from the processor 140 to the network device 200 through the antenna 110.
  • the receiver 130 is configured to receive response information from the network device 200 through the antenna 110 and deliver the response information to the processor 140.
  • the response information includes information indicating that the terminal uses the new frame structure or information indicating that the frame structure currently used by the terminal is not changed.
  • the processor 140 processes the response information according to the response information, for example, if the response information includes information indicating that the frame structure currently used by the terminal is agreed to be changed, and the information of the new frame structure is included in the response information. (e.g., the index value of the new frame structure or the frame structure desired by the terminal), the processor 140 reads the frame structure corresponding to the index value from the memory 150 and updates the frame structure. Processor 140 then notifies transmitter 120 and receiver 130 to communicate with network device 200 via antenna 110 in accordance with the new frame structure.
  • the response information may also include a start time of the frame structure change, and the processor 140 instructs the transmitter 120 and the receiver 130 to communicate with the network device in the new frame structure through the antenna 110 at the start time of the frame structure change.
  • the processor 140 notifies the transmitter 120 and the receiver 130 that the antenna device 110 and the network device 200 are still in accordance with the currently used frame structure. Communicate.
  • the current frame structure of the terminal does not meet the requirements of the terminal. For details, refer to the description in the foregoing method embodiment.
  • the specific content of the frame structure change request and the response information is consistent with the corresponding content in the first embodiment of the method.
  • the network device 200 shown in FIG. 7 includes an antenna 210, a transmitter 220, a receiver 230, a processor 240, and a memory 250.
  • Antenna 210 is coupled to transmitter 220 and receiver 230 for transmitting and receiving signals.
  • transmitter 220 and receiver 230 may also be combined into transceiver 260.
  • the receiver 230 is configured to receive a frame structure change request from the terminal 100 through the antenna 210 and pass it to the processor 240.
  • the frame structure change request may include a new frame structure that is required by the terminal or may not include a new frame structure that is required by the terminal. For details, refer to the description of the method embodiment 1.
  • the memory 250 is coupled to the processor 240 for storing program code and various frame structures that can be executed by the processor 240, and can also store index tables for various frame structures.
  • the processor 240 is configured to execute the code in the memory 250, and the processor 240 generates a response message after the receiver 230 receives the frame structure change request from the terminal 100, and transmits the response information to the transmitter 220. Specifically, after receiving the frame structure change request, the processor 240 determines whether to agree to change the frame structure currently used by the terminal 100; and generates a response message according to the determined result; if it agrees to change the frame structure currently used by the terminal 100, The response information includes information indicating that the terminal 100 uses the new frame structure.
  • the response information may further include a start time of the frame structure change determined by the processor 240, and the processor 240 further instructs the transmitter 220. And the receiver 230 communicates with the terminal in a new frame structure through the antenna 210 at the start time of the frame structure change. If the frame structure currently used by the terminal 100 is not changed, the response information includes information indicating that the frame structure currently used by the terminal 100 is not changed.
  • the transmitter 220 transmits response information from the processor 240 to the terminal 100 via the antenna 210.
  • the processor 240 is further configured to: according to the service type required by the terminal 100, the location information of the terminal 100. Determining whether to agree with the frame structure change request of the terminal 100, one or more parameters of the channel quality of the terminal 100, the interference of the terminal 100, the load of the network device 200, if agreed, according to One or more of these parameters determines a new frame structure for the terminal 100.
  • the processor 240 generates response information accordingly. For a specific procedure of how to determine a new frame structure and response information after the processor 240 receives the frame structure change request, refer to the description of the network device in the foregoing method embodiment 1.
  • the schematic diagram of the device structure of the foregoing FIG. 7 is used, but the network device and the terminal function are different from the previous embodiments.
  • the device in this embodiment is used to implement the method for adjusting the frame structure in the second embodiment of the present application.
  • only parts related to the embodiment of the present invention are shown: an antenna, a transmitter, a receiver, a processor, and a memory.
  • the network device 200 shown in FIG. 7 includes an antenna 210, a transmitter 220, a processor 240, and a memory 250.
  • Antenna 210 is coupled to transmitter 220 for transmitting signals.
  • the memory 250 is coupled to the processor 240 for storing program code and various frame structures that can be executed by the processor 240, and can also store index tables for various frame structures.
  • the processor 240 is configured to execute code in the memory 250, and determine a new frame structure for the terminal 100 when the current frame structure of the terminal 100 does not meet the needs of the terminal 100 or the network terminal 200, and Information of the new frame structure is passed to the transmitter 220.
  • the processor 240 when the current frame structure of the processor 240 does not meet the needs of the terminal 100 or the network terminal 200, information for instructing the terminal to use a new frame structure is generated, and the information is used to indicate the terminal is used.
  • the information of the new frame structure is transmitted to the transmitter 220.
  • the information indicating that the terminal uses the new frame structure may further include the start time of the frame structure change determined by the processor 240, and the processor 240 further indicates Transmitter 220 and receiver 230 communicate with the terminal in a new frame structure via antenna 210 at the start of the frame structure change.
  • the transmitter 220 is configured to send, by using the antenna 210, the information of the new frame structure to the terminal 100.
  • the processor 240 determines a new frame structure for the terminal 100 and how the transmitter 220 transmits the information of the new frame structure to the terminal 100, refer to the related description in the foregoing method embodiment 2.
  • the terminal 100 may feed back a response message to the network device 200 for notifying the network device 200 that the terminal 100 agrees to change the current frame structure or does not agree to change the current frame structure.
  • the network device 200 can also include a receiver 230 coupled to the antenna 210 and the processor 240 for receiving response information from the terminal 100 via the antenna 210 and communicating the response information to the processor 240.
  • transmitter 220 and receiver 230 may also be combined into transceiver 260.
  • the information of the above new frame structure may be an index value of a new frame structure.
  • the processor 240 determines the new frame structure for the terminal 100
  • the index value corresponding to the new frame structure can be read from the memory 250 and transmitted to the transmitter 220 to be sent through the antenna 210. To the terminal 100.
  • the terminal shown in FIG. 7 includes an antenna 110, a transmitter 120 and a receiver 130, a processor 140, and a memory 150.
  • Antenna 110 is coupled to transmitter 120 and receiver 130 for transmitting and receiving signals.
  • transmitter 120 and receiver 130 may also be combined into transceiver 160.
  • the receiver 130 is configured to receive, via the antenna 110, information from the network device 200 for instructing the terminal to use the new frame structure and pass it to the processor 140.
  • the memory 150 is coupled to the processor 150 for storing program code that can be executed by the processor 140 and various frame structures, and can also store an index table of various frame structures, and the processor 140 is configured to execute the code in the memory 150.
  • the response information is generated when the terminal response is required and the response information is transmitted to the transmitter 120, and the transmitter 120 transmits the response information to the network device 200 through the antenna 110.
  • the processor 140 is configured to: after receiving the foregoing information used to indicate that the terminal uses a new frame structure, to indicate to the terminal that the terminal uses a new frame structure. The information is parsed to obtain the above new frame structure.
  • the information indicating that the terminal uses the new frame structure may further include a start time of the frame structure change, and the processor 140 instructs the transmitter 120 and the receiver 130 to pass through the antenna 110 at the start time of the frame structure change.
  • Network devices communicate in a new frame structure.
  • the processor 140 can also be configured to generate a response message indicating that the change is agreed upon when agreeing to change the frame structure, and generate a response message rejecting the change when the frame structure is not changed.
  • the information of the above new frame structure may be an index value of a new frame structure.
  • the processor 140 may acquire the new frame structure from the memory 150 after acquiring the index value of the new frame structure.
  • the information used to indicate that the terminal uses the new frame structure and the specific content of the terminal response information are consistent with the corresponding content in the second embodiment, and details are not described herein again.
  • the antenna 110 or the antenna 210 in the above embodiments 3 and 4 may be a single antenna or a multiple antenna.
  • the disclosed methods and apparatus may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the device is only a logical function division, and the actual implementation may have another division manner, for example, multiple devices may be combined to form a new one.
  • Device the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device, device or unit, and may be electrical, mechanical or otherwise.
  • the devices in the various embodiments of the present application are physical units, and some of the functions may be implemented by software, and may be implemented by hardware. A person skilled in the art may select a corresponding implementation manner according to actual needs.
  • the processor of the present invention may be a general-purpose processor, and may be an integrated circuit or a chip.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

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Abstract

本发明公开了一种全双工帧结构灵活调整的方法，在通信进行过程中，根据终端的业务需要、位置、干扰情况、信道质量、网络设备的负载等变化，全双工的网络设备和半双工的终端协商更改该终端的帧结构，以有效地优化系统资源配置。

Description

调整帧结构的方法、网络设备与终端 技术领域
本申请实施例涉及通信技术领域，并且更具体地，涉及动态调整帧结构的方法。
背景技术
当前的无线通信技术已经发展到长期演进(英文全称：Long Term Evolut ion；英文缩写：LTE)系统，以附图1为例，现有的LTE系统中包括多个小区，每个小区中都有一个网络设备11和多个终端12，网络设备11向终端12发送公共控制信息和数据，以及用于检测公共控制信息和数据的参考信号。一般地，为了防止互相干扰，网络设备向终端发送信号与终端向网络设备发送信号都利用独立的资源，这个独立的资源可以是相同的时间但不同的频率，即频分双工(英文全称：Frequency Divis ion Duplexing；英文缩写：FDD)，或者在相同的频率但不同的时间，即时分双工(英文全称：Time Divis ion Duplexing；英文缩写：TDD)。
随着通信技术的发展，全双工(英文全称：Ful l Duplex；英文缩写：FD)技术应运而生，相比于FDD和TDD，全双工因在同时工作的收发信道上使用相同的频谱，即同时同频，可以使频谱效率最大提升一倍。然而，由于网络设备自身的发射信号与终端发送的信号在频谱上重叠且功率远远大于终端的信号，因此会对终端的信号形成自干扰。现有技术通过天线隔离，模拟消除和数字消除等自干扰消除技术，对自干扰信号进行了有效的抑制。
由于自干扰消除实现较为复杂，在终端侧实现的成本过高，因此一个常用的折中方案是仅在网络设备实现全双工，而在终端侧还是实现传统的半双工。为了利用网络设备侧的全双工处理能力，一个现有的做法是在现有的帧结构中设立一个灵活子帧，放置于上行子帧之后而在下行子帧之前，它既可以作为上行子帧也可以作为下行子帧，如图2所示，在通信过程中，利用特殊子帧S指示该灵活子帧究竟是作为上行子帧还是下行子帧。但这种方式下的灵活子帧要求所有终端必须同时为上行或同时为下行，因此不够灵活。
发明内容
本发明的实施例提供一种调整帧结构的方法、网络设备与终端。
第一方面，本申请的实施例提供了一种调整帧结构的方法，包括：终端向网络设备发送帧结构更改请求，该终端为该网络设备服务的一个终端；该帧结构更改请求用于请求网络设备更改终端当前使用的帧结构；在网络设备同意更改终端当前使用的帧结构的情况下，终端接收来自网络设备的响应信息，该响应信息中包括用于指示该终端使用新的帧结构的信息。该响应信息是专门针对该终端而发，这样每一个终端可以独立地动态调整帧结构，提高通信效率。
终端收到响应信息后使用新的帧结构与网络设备进行通信。
在一个可能的设计中，终端向网络设备发送帧结构更改请求中还包含终端期望使用的新的帧结构的信息。
网络设备收到该终端发送的帧结构更改请求后可以确定是否同意该终端使用期望的新的帧结构，如果同意，则响应信息中携带表示同意终端使用期望的新的帧结构的信息，如果不同意，则响应信息中携带表示不同意该终端使用期望的新的帧结构的信息。例如，响应信息中以一个比特表示是否同意终端使用 期望的新的帧结构。进一步地，该一个比特表示不同意终端使用期望的新的帧结构的时候，还可以表示不同意终端更改帧结构。这种设计的优势在于信令非常简单，开销较小。
在一个可能的设计中，响应信息中还包括帧结构更改起始的时间，终端在该帧结构更改起始的时间将帧结构更改成新的帧结构与网络设备通信。
在一个可能的设计中，在网络设备不同意更改终端当前使用的帧结构的情况下，终端接收来自网络设备的另一响应信息，该另一响应信息中包括用于指示不同意更改终端当前使用的帧结构的信息。例如，另一响应信息中以一个比特表示不同意终端的帧结构更改请求。终端收到另一响应信息后使用当前的帧结构与网络设备进行通信。
在一个可能的设计中，另一响应信息中包括一个新的帧结构的信息，新的帧结构与终端当前使用的帧结构一致。终端收到该另一响应信息后就知道，网络设备不同意更改该终端当前使用的帧结构。
在一个可能的设计中，新的帧结构的信息为新的帧结构的索引值。由于索引值比较简洁，因此可以节省流量。
在一个可能的设计中，终端向网络设备发送的帧结构更改请求，是在终端确定当前使用的帧结构不满足该终端的需要时发送的。例如，终端当前使用的帧结构不满足终端的需要具体包括：终端当前使用的帧结构不适合终端的业务，或者终端的业务、终端的位置、终端受到的干扰和终端的信道质量中的一个或者多个参数发生变化。这样终端可以有更大的自由度选择自身的帧结构。
在一个可能的设计中，新的帧结构为网络设备收到终端发送的帧结构更改请求后，根据终端需求的业务类型、终端的位置信息、信道质量、终端的干扰、网络设备的负载中的一个或者多个参数为终端确定的。这样网络设备就可以为每一个终端都独立的调度帧结构，使得每个终端都能找到各自合适的帧结构，可以显著提升系统性能。
第二方面，本申请的实施例提供了一种调整帧结构的方法，包括：网络设备接收终端发送的帧结构更改请求,其中该终端为该网络设备服务的一个终端，帧结构更改请求用于请求网络设备更改终端当前使用的帧结构；在网络设备同意更改终端当前使用的帧结构的情况下，网络设备向终端发送响应信息，响应信息中包括用于指示终端使用新的帧结构的信息。
在一个可能的设计中，网络设备在终端收到响应信息后使用新的帧结构与终端进行通信。
在一个可能的设计中，帧结构更改请求中包含终端期望使用的新的帧结构的信息。响应信息携带同意终端期望使用的新的帧结构的信息。例如：响应信息中以一个比特表示是否同意终端使用期望的新的帧结构。进一步地，该一个比特表示不同意终端使用期望的新的帧结构的时候，还可以表示不同意终端更改帧结构。这种设计的优势在于信令非常简单，开销较小。
在一个可能的设计中，网络设备确定新的帧结构为是否同意终端的帧结构更改为终端期望的新的帧结构，如果不同意则还需要确定其它的新的帧结构。
在一个可能的设计中，网络设备还确定帧结构更改起始的时间，响应信息中还包括帧结构更改起始的时间，网络设备在该帧结构更改起始的时间将帧结构更改成新的帧结构与终端通信。
在一个可能的设计中，如果网络设备不同意更改终端当前使用的帧结构，则网络设备使用当前的帧结构与终端进行通信。
在一个可能的设计中，如果网络设备不同意更改终端当前使用的帧结构，网 络设备向终端发送另一响应信息，其中另一响应信息中包括用于指示不同意终端更改当前使用的帧结构的信息。例如，另一响应信息中以一个比特表示不同意终端的帧结构更改请求。
在一个可能的设计中，另一响应信息中包括一个新的帧结构的信息，新的帧结构与终端当前使用的帧结构一致。
在一个可能的设计中，网络设备收到终端发送的帧结构更改请求后，根据终端需求的业务类型、终端的位置信息、终端的信道质量、终端的干扰、网络设备的负载中的一个或者多个参数为终端确定是否同意该帧结构更改请求，如果同意，则网络设备还要确定新的帧结构。
在一个可能的设计中，新的帧结构的信息为新的帧结构的索引值。
第三方面，本申请的实施例提供了一种调整帧结构的方法，该方法中的调整帧结构由网络设备发起，该方法包括：网络设备为终端确定新的帧结构，该终端为该网络设备服务的一个终端；该网络设备向该终端发送用于指示该终端使用新的帧结构的信息。这样网络设备就可以主动为每一个终端都独立的调度帧结构，使得每个终端都能找到各自合适的帧结构，可以显著提升系统性能。
在一个可能的设计中，网络设备为终端确定新的帧结构，是在网络设备确定该终端当前的帧结构不满足该终端或者该网络设备的需要时确定。
例如，当前的帧结构不满足该终端或者该网络设备的需要具体包括：终端当前使用的帧结构不适合终端的业务，或者终端的业务、终端的位置、终端的干扰和终端的信道质量、网络设备的负载中的一个或者多个参数发生变化。
在一个可能的设计中，为终端确定新的帧结构具体为：网络设备根据终端需求的业务类型、终端的位置信息、终端的信道质量、终端的干扰、网络设备的负载中的一个或者多个参数为终端确定新的帧结构。
网络设备在终端收到用于指示该终端使用新的帧结构的信息后使用新的帧结构与终端进行通信。
在一个可能的设计中，网络设备还确定帧结构更改起始的时间，用于指示该终端使用新的帧结构的信息中还包括帧结构更改起始的时间，网络设备在该帧结构更改起始的时间将帧结构更改为新的帧结构与终端通信。
在一个可能的设计中，新的帧结构信息为新的帧结构的索引值。
在一个可能的设计中，终端向网络设备发送同意采用新的帧结构或者拒绝采用新的帧结构的响应信息。
第四方面，本申请的实施例提供一种调整帧结构的方法，该方法包括：终端接收网络设备向该终端发送的用于指示该终端使用新的帧结构的信息，该终端是该网络设备服务的一个终端。终端在收到用于指示该终端使用新的帧结构的信息后使用新的帧结构与网络设备进行通信。
在一个可能的设计中，新的帧结构信息为新的帧结构的索引值。
在一个可能的设计中，终端向网络设备发送同意采用新的帧结构或者拒绝采用新的帧结构的响应信息。
在一个可能的设计中，用于指示该终端使用新的帧结构的信息中还包括帧结构更改起始的时间，终端在该帧结构更改起始的时间将帧结构更改为新的帧结构与网络设备通信。
第五方面，本申请的实施例提供一种发起更改帧结构的终端，其中该终端为网络设备服务的一个终端，包括天线、发送器、接收器、存储器和处理器，天线与发送器和接收器耦合，处理器与发送器、接收器、存储器耦合；存储器用于存储能被处理器执行的程序代码；当程序代码被处理器执行时，处理器用于 产生帧结构更改请求并传递至发送器；发送器用于通过天线向该网络设备发送来自于处理器的帧结构更改请求,帧结构更改请求用于请求网络设备更改终端当前使用的帧结构；在网络设备同意更改终端当前使用的帧结构的情况下，接收器用于通过天线接收来自网络设备的响应信息并传递至处理器，响应信息中包括用于指示终端使用新的帧结构的信息；当程序代码被处理器执行时，处理器还用于根据响应信息进行处理。
在一个可能的设计中，处理器用于根据响应信息进行处理包括：处理器用于指示发送器和接收器按照新的帧结构通过天线与网络设备进行通信。
在一个可能的设计中，帧结构更改请求中包含终端期望使用的新的帧结构的信息。
网络设备收到该终端发送的帧结构更改请求后可以确定是否同意该终端使用期望的新的帧结构，如果同意，则响应信息携带表示同意终端使用期望的新的帧结构的信息。例如：响应信息中以一个比特表示是否同意终端使用期望的新的帧结构。进一步地，该一个比特表示不同意终端使用期望的新的帧结构的时候，还可以表示不同意终端更改帧结构。
在一个可能的设计中，响应信息中还包括帧结构更改起始的时间，处理器用于指示发送器和接收器在该帧结构更改起始的时间按照新的帧结构通过天线与网络设备进行通信。
在一个可能的设计中，如果网络设备不同意更改终端当前使用的帧结构，则接收器用于通过天线接收来自网络设备的另一响应信息并传递至处理器，另一响应信息中包括用于指示不同意更改终端当前使用的帧结构的信息；处理器用于根据另一响应信息进行处理。例如：另一响应信息中以一个比特表示不同意终端的帧结构更改请求。
在一个可能的设计中，处理器用于根据另一响应信息进行处理为处理器用于指示发送器和接收器按照当前使用的帧结构通过天线与网络设备进行通信。
在一个可能的设计中，另一响应信息中包括一个新的帧结构的信息，新的帧结构与终端当前使用的帧结构一致。
在一个可能的设计中，新的帧结构的信息为新的帧结构的索引值。
在一个可能的设计中，存储器还用于存储各种帧结构以及各种帧结构对应的索引值。
在一个可能的设计中，处理器用于产生帧结构更改请求是在终端当前使用的帧结构不满足该终端的需要时产生，例如：终端当前使用的帧结构不适合终端的业务，或者终端的业务、终端的位置、终端受到的干扰和终端的信道质量中的一个或者多个参数发生变化。
在一个可能的设计中，新的帧结构为网络设备收到终端发送的帧结构更改请求后，根据终端需求的业务类型、终端的位置信息、终端的信道质量、终端的干扰、网络设备的负载中的一个或者多个参数为终端确定的。
第六方面，本申请的实施例提供了一种响应更改帧结构的网络设备，包括天线、发送器、接收器、存储器和处理器，天线与发送器和接收器耦合，处理器与发送器、接收器、存储器耦合；存储器用于存储能被处理器执行的程序代码；接收器用于通过天线接收来自终端的帧结构更改请求并将之传递到处理器,其中该终端为该网络设备服务的一个终端，帧结构更改请求用于请求网络设备更改终端当前使用的帧结构；当程序代码被处理器执行时，在处理器同意更改终端当前使用的帧结构的情况下，处理器用于产生一个响应信息，并将响应信息传递给发送器；响应信息中包括用于指示终端使用新的帧结构的信息；发送器 用于通过天线向终端发送来自于处理器的响应信息。
在一个可能的设计中，网络设备在终端收到响应信息后使用新的帧结构与终端进行通信。
在一个可能的设计中，帧结构更改请求中包含终端期望使用的新的帧结构的信息。
在一个可能的设计中，当新的帧结构与终端期望使用的新的帧结构一致时，响应信息携带同意终端期望使用的新的帧结构的信息。例如：响应信息中以一个比特表示是否同意终端使用期望的新的帧结构。进一步地，该一个比特表示不同意终端使用期望的新的帧结构的时候，还可以表示不同意终端更改帧结构。
在一个可能的设计中，处理器还确定帧结构更改起始的时间，产生的响应信息中还包括帧结构更改起始的时间，处理器用于指示发送器和接收器在该帧结构更改起始的时间按照新的帧结构通过天线与终端进行通信。
在一个可能的设计中，如果处理器不同意更改终端当前使用的帧结构，处理器用于指示发送器和接收器按照当前使用的帧结构通过天线与网络设备进行通信。
在一个可能的设计中，如果处理器不同意更改终端当前使用的帧结构，产生另一响应信息传递给发送器通过天线发送给终端，该另一响应信息中包括用于指示不同意更改终端当前使用的帧结构的信息。
例如，另一响应信息中以一个比特表示不同意终端的帧结构更改请求。
在一个可能的设计中，另一响应信息中包括一个新的帧结构的信息，新的帧结构与终端当前使用的帧结构一致。
在一个可能的设计中，处理器还用于收到来自于接收器的终端发送的帧结构更改请求后，根据终端需求的业务类型、终端的位置信息、终端的信道质量、终端的干扰、网络设备的负载中的一个或者多个参数为终端确定是否同意该帧结构更改请求，如果同意，则处理器还用于确定新的帧结构。
在一个可能的设计中，处理器确定新的帧结构为是否同意终端的帧结构更改为终端期望的新的帧结构，如果不同意则还需要确定其他的新的帧结构。
在一个可能的设计中，新的帧结构的信息为新的帧结构的索引值。
在一个可能的设计中，存储器还用于存储各种帧结构以及各种帧结构对应的索引值。
第七方面，本申请的实施例提供了一种发起更改帧结构的网络设备，包括天线、发送器、存储器和处理器，天线与发送器耦合，处理器与发送器和存储器耦合；存储器用于存储能被处理器执行的程序代码；当程序代码被处理器执行时，处理器用于为终端确定新的帧结构，产生用于指示终端使用新的帧结构的信息，将该用于指示终端使用新的帧结构的信息传递给发送器，该终端是该网络设备服务的一个终端；发送器用于通过天线向终端发送该用于指示终端使用新的帧结构的信息。
在一个可能的设计中，处理器为终端确定新的帧结构，是在处理器确定当前的帧结构不满足终端或者网络设备的需要时确定，例如，终端当前使用的帧结构不适合终端的业务，或者终端的业务、终端的位置、终端的干扰和终端的信道质量、网络设备的负载中的一个或者多个参数发生变化。
在一个可能的设计中，处理器为终端确定新的帧结构具体为：处理器根据终端需求的业务类型、终端的位置信息、终端的信道质量、终端的干扰、网络设备的负载中的一个或者多个参数为终端确定新的帧结构。
在一个可能的设计中，网络设备还包括接收器，接收器与天线和处理器耦合， 处理器用于指示发送器和接收器在终端收到用于指示所述终端使用新的帧结构的信息后使用新的帧结构通过天线与网络设备进行通信。
在一个可能的设计中，新的帧结构信息为新的帧结构的索引值。
在一个可能的设计中，存储器还用于存储各种帧结构以及各种帧结构对应的索引值。
在一个可能的设计中，处理器还确定帧结构更改起始的时间，产生的用于指示所述终端使用新的帧结构的信息中还包括帧结构更改起始的时间，处理器用于指示发送器和接收器在该帧结构更改起始的时间按照新的帧结构通过天线与终端进行通信。
在一个可能的设计中，该网络设备还包括接收器，接收器与天线和处理器耦合，用于通过天线接收来自终端的响应信息并传递至处理器，其中响应信息为终端同意或者拒绝更改的当前的帧结构。
在一个可能的设计中，终端向该网络设备发送同意采用新的帧结构或者拒绝采用新的帧结构的响应信息。
第八方面，本申请的实施例提供一种接收帧结构更改的终端，包括：天线、接收器、存储器和处理器，天线与接收器耦合，处理器与接收器和存储器耦合；存储器用于存储能被处理器执行的程序代码；接收器通过天线接收网络设备发送的用于指示终端使用新的帧结构的信息，该终端是该网络设备服务的一个终端；当程序代码被处理器执行时，处理器用于处理接收器传递过来的用于指示终端使用新的帧结构的信息。
在一个可能的设计中，终端还包括发送器，发送器与天线和处理器耦合，处理器用于处理接收器传递过来的用于指示终端使用新的帧结构的信息包括：处理器用于指示发送器和接收器按照新的帧结构通过天线与网络设备进行通信。
在一个可能的设计中，新的帧结构信息为新的帧结构的索引值。
在一个可能的设计中，存储器还用于存储各种帧结构以及各种帧结构对应的索引值。
在一个可能的设计中，用于指示所述终端使用新的帧结构的信息中还包括帧结构更改起始的时间，处理器用于指示发送器和接收器在该帧结构更改起始的时间按照新的帧结构通过天线与终端进行通信。
在一个可能的设计中，终端还包括发送器，发送器与天线和处理器耦合，处理器还用于产生同意采用新的帧结构或者拒绝采用新的帧结构的响应信息，传递给发送器通过天线向网络设备发送。
以上第五方面至第八方面中的天线可以是单天线，也可以是多天线。
以上各方面中的响应信息、另一响应信息或者用于指示终端使用新的帧结构的信息可以为独立的消息，也可以由上下行调度控制信道或RRC信令承载。
以上各方面中终端的干扰包括终端受到的干扰和/或对其他终端的干扰。
以上各方面中的网络设备可以为基站，也可以为具有基站类似功能的其它网络侧设备。
以上各方面中，当前的帧结构可以是默认的帧结构。
以上各方面中，响应信息、另一响应信息或者用于指示终端采用新的帧结构的信息是由网络设备对其服务的一个终端单独发送，如果是网络设备对其服务的一组终端(并非全部终端)统一进行更改，则响应信息、另一响应信息或者用于指示终端采用新的帧结构的信息中可以包含指示终端组的信息或者通过在该组终端对应的共用资源上传输表示这是对这一组终端统一进行的帧结构的更改，更改帧结构的方法和原则与一个终端更改帧结构的方法和原则一致。
通过本申请的实施例，每个终端都可以和网络设备进行动态的帧结构调整，同一网络设备内的不同终端可以用不同的帧结构同时与网络设备通信，由此可以满足不同终端的需求，可以最大限度地发挥网络设备的全双工处理能力，同时也使得各终端采用的帧结构更切合该终端的需要，并且有效地利用系统资源。
附图说明
图1为LTE系统结构示意图
图2为灵活子帧示意图
图3为终端触发帧结构更改流程示意图
图4为临近终端干扰示意图
图5为终端触发帧结构更改流程示意图(更改请求中含有期望的帧结构的信息)
图6为网络设备触发帧结构更改流程示意图
图7为网络设备与终端结构示意图
具体实施方式
在现有的LTE-TDD中，无论是否采用灵活子帧，网络设备与所有终端的上下行配置都是一致的，即网络设备与每个终端之间都采用相同的帧结构。一般地，网络设备为基站，但也可以是具有类似功能的其他形式的网络侧设备，比如分布式的天线、分布式发射点等。
在本申请的实施例中，网络设备采用全双工，终端采用半双工，同一网络设备服务的不同终端可以用不同的帧结构同时与网络设备通信，对于每个终端使用的帧结构可以独立地进行上下行配置，即不同的终端使用的帧结构中可以存在不同的上下行配置，由于上下行同频，因此更多地可以参考LTE-TDD的模式。在这种场景下，如何协商更改该终端的帧结构以有效地优化系统资源配置，是本发明所解决的问题。
考虑到终端初始接入的需要，可以规定一个默认的帧结构，该帧结构无需网络设备通知终端或网络设备与终端之间进行协商。在该默认的帧结构下，网络设备采用事先约定好的时隙和周期来向终端发送同步信号、接收终端的初始接入、与终端进行能力协商、或与终端进行能力确认等，确保新的终端在没有与网络设备之间经过协商的情况下能通过该默认的帧结构随时接入，默认的帧结构可以是现有的LTE-TDD规定的帧结构，也可以是新定义的，以表1为例，默认的帧结构可为表1中任意一个索引值对应的帧结构，其中帧的长度可以与LTE-TDD中帧的长度相同(当然，也可以根据需要重新定义新的帧长度)，即每一帧中包括10个子帧，网络设备和终端都可以保存如表1定义的帧结构和帧结构对应的索引值。当然，还可以根据不同的频段设定不同的默认的帧结构，这里不再赘述。表1中共有n种帧结构，最大的帧结构索引值为n-1。索引值0～6对应的为现有LTE-TDD已有的帧结构，索引值7～(n-1)对应的为未来可能新增的n-7种帧结构，帧结构x和x+1表示这n-1种帧结构中的任意两种相邻帧结构。需要注意的是，n不一定需要大于6，即不一定需要将现有LTE-TDD中所有的帧结构都一并采纳，特别地，n还可以为1，即只规定一种帧结构并将之作为默认的帧结构。优选地，为了终端更好的同步，在同步信号发送的子帧，都配置为下行，例如可在第0子帧和第5子帧配置发送同步信号。不失一般性，假设帧结构x为默认的帧结构且只在#0(其中#表示次序，比如#0即表示0号，即第0个)子帧发送同步信号，则新的终端只在每一帧的#2子帧发送接入请求，接入后网络设备和终端可以进行能力协商或需求协商，确认是否要调整帧结构。这样通过协商，网络设备就可以为每一个终端都独立的调度帧结构，使得每个终端都能找到各自合适的帧结构，可以显著提升系统性能。协商过程一旦结束， 网络设备和终端就按照协商结果确定的帧结构进行通信。
本申请的实施例在网络设备全双工，终端半双工的模式中，网络设备可以根据终端的需求，灵活地调整终端的帧结构。该网络设备可以是网络侧设备，例如基站，也可以是终端，例如，在D2D通信中，由作为发射机的终端承担网络设备的角色。为便于理解，下面均以网络设备为例进行描述。
表1全双工帧结构上下行子帧配置
Figure PCTCN2017083590-appb-000001
一种全双工帧结构灵活调整的方法包括：在按照默认的帧结构建立连接后，或者在通信进行过程中，网络设备和终端协商更改终端的帧结构。比如，当前的帧结构为表1中的帧结构j(0≤j≤n-1，这个帧结构可以是默认的帧结构，也可以是之前已经调整过的帧结构)，网络设备和终端协商更改终端的帧结构为表1所示帧结构i(0≤i≤n-1，i≠j)，这种更改可以由网络设备触发，也可以由终端触发。
下面通过不同的实施例来具体说明，需要指出的是，无论是哪一个实施例，针对的都是网络设备服务的任一终端，不同的终端可以独立进行更改帧结构，彼此不必强求一致。由于是对每个终端单独进行帧结构的调整，因此无论同意还是不同意更改，如无特别说明，下文中的响应信息或者用于指示终端采用新的帧结构的信息都是对一个终端单独发送。特别地，如果是网络设备对其服务的一组终端(并非全部终端)统一进行更改，则响应信息或者用于指示终端采用新的帧结构的信息中可以包含指示终端组的信息或者通过在该组终端对应的共用资源上传输表示这是对这一组终端统一进行的帧结构的更改，更改帧结构的方法和原则与一个终端更改帧结构的方法和原则一致。不失一般性，本申请均以一个终端为例。
实施例一
网络设备和终端协商更改终端的帧结构时，可由终端发起帧结构更改请求。例如，参见图3所示，图3中的终端100为网络设备200服务的任一终端(注意这里是任一终端，即对网络设备服务的不同终端可以做各自独立的处理)，在步骤301，终端100在当前使用的帧结构不满足需要时，向网络设备200发送帧结构更改请求，所述帧结构更改请求用于请求网络设备200更改所述终端当前使用的帧结构，当然也可以命名为其他的信令名称；在步骤302，网络设备200收到终端100发送的帧结构更改请求后确定是否同意更改终端100当前使用的帧结构，在步骤303向终端100发送响应信息，如果网络设备200同意更改，则该响应信息中包括用于指示所述终端100使用新的帧结构的信息，如果网络设备200不同意更改，则该响应信息中包括用于指示所述网络设备200不同意更改所述终端100当前使用的帧结构的信息。随后在步骤304网络设备200与终端100就按照响应信息中确认的帧结构进行 通信。
终端当前的帧结构不满足终端的需要的情况有很多，例如，终端当前使用的默认帧结构不适合终端的业务，或者终端在与网络设备通信的过程中该终端的业务、该终端的位置、该终端受到的干扰和该终端的信道质量中的一个或者多个参数发生变化等等。举个具体的例子来说，假如终端当前使用的默认帧结构是帧结构x+1，在x+1帧结构下大部分子帧都是分配给下行的，但若当前业务是由终端发起的上传视频或者上载软件包等大容量业务，则显然需要更多的上行资源来传输较大数据流量，而对下行资源的要求不是太高，这时候帧结构x+1就不是很合适了，因此需要配置更多上行子帧的帧结构，例如帧结构0，在此种情况下，终端就可以向网络设备发送一个帧结构更改请求，请求网络设备将终端的帧结构更改为终端期望的新的帧结构0或者其他适合终端当前业务的帧结构。再举一例，如图4所示，假如终端A当前使用的帧结构是帧结构x+1，该终端A位置发生移动后，与采用帧结构2通信的另一终端B位置非常靠近，即图4中的临近终端，这样其特殊子帧受到终端B上行通信的严重干扰，即终端A的位置和干扰都发生了变化，相应地，终端B的第3、8个下行子帧也受到终端A的上行通信的严重干扰，图中以斜体标出终端A和终端B受到严重干扰的子帧，这时候，终端A和终端B就可以向网络设备发送一个帧结构更改请求，终端A请求将帧结构更改为帧结构2或者只请求更改帧结构，而终端B也请求将帧结构更改为帧结构x+1或者只请求更改帧结构，网络设备在分别收到终端A和终端B的请求后，可以选择将帧结构统一调为帧结构2，也可以选择将帧结构同意调为帧结构x+1，还可以选择为终端A和终端B选择一个新的相同的帧结构，分别通知终端A和终端B，这样终端A和终端B都以通知的帧结构与网络设备通信，帧结构就可以同步，减小了因位置和干扰的变化而带来的干扰。除此之外，终端还可以根据业务类型的变化，终端自身所受到其他终端的干扰，或者信道质量的变化，或者位置变化，或者其他情形，主动发起帧结构更改请求给网络设备。
上述例子中提到了终端在向网络设备发送的帧结构更改请求中还可以包括该终端期望的新的帧结构的信息，即终端可以主动告诉网络设备自己期望使用哪种帧结构。例如，终端可以在类似表1的帧结构索引表中找到合适的帧结构(即终端期望的新的帧结构)，所谓合适的帧结构，是终端根据自身受到的干扰情况、业务类型等因素做出的选择，并将该帧结构的信息(例如，该帧结构的索引值)放在帧结构更改请求中一并发送给网络设备，如图5所示，与图3所示的流程类似，图5中的终端100为网络设备200服务的任一终端(注意这里是任一终端，即对网络设备服务的不同终端可以做各自独立的处理)，在步骤401终端100向网络设备200发送包括期望的帧结构的帧结构更改请求，网络设备在步骤402确认是否同意该请求，并在步骤403向终端100发送响应消息，该响应消息可以是一个请求确认(参见图5所示，该响应消息或请求确认可以为1比特，需要说明的是，该请求确认还可以是通过多个比特携带的，例如，考虑编码等因素需要携带更多的信息的情况下就可能不止1个比特了)，然后终端100与网络设备200就在步骤404按请求确认的内容对应的帧结构通信，即如果是同意，则按终端期望的帧结构进行通信，如果是不同意，则还是按终端当前的帧结构进行通信。终端也可以不告诉网络设备期望使用哪种帧结构，由网络设备根据终端的业务类型来为终端确定适合的帧结构，例如，终端在发起业务请求的时候，已经知会网络设备所需的业务类型，因此，终端也可以只发送帧结构更改请求而不携带终端期望使用哪种帧结构，网络设备收到终端发送的帧结构更改请求后，可以基于网络设备的负载、终端所需的业务类型、网络设备所获得的终端位置信息、信道质量、终端的干扰等参数中的一个或多个来为终端确定合适的新的帧结构，需要注意的是，不同于终端只需评估自身受到的干扰，网络设备 在评估干扰情况时，不但要考虑该终端受到的干扰，还要评估该终端对其他终端的干扰，因此这里以‘终端的干扰’统称(下同)。网络设备收到终端发送的帧结构更改请求后，不管是否同意更改，都会给终端回复一个响应信息，如果网络设备同意更改，则该响应信息中包括用于指示所述终端使用新的帧结构的信息。若网络设备不同意更改，或者重新确定的新的帧结构还是当前的帧结构，则响应信息中包括用于指示不同意更改所述终端当前使用的帧结构的信息。
网络设备在收到终端发送的帧结构更改请求后如果同意更改，则存在如下几种情况：
(1)如果该帧结构更改请求中没有包含终端期望的新的帧结构，则网络设备为终端确定一种新的帧结构，这种新的帧结构更适合终端当前的业务类型或场景；
(2)如果该帧结构更改请求中包含了终端期望的新的帧结构，并且网络设备同意，则网络设备确定将终端期望的新的帧结构作为新的帧结构；
(3)如果该帧结构更改请求中包含了终端期望的新的帧结构，但是网络设备不同意，则网络设备为终端确定一种新的帧结构；这种新的帧结构更适合终端当前的业务类型或场景。
前面已经描述过网络设备如何为终端确定新的帧结构，因此，此处不再赘述。
网络设备为终端确定好新的帧结构后，发送响应信息给终端。终端收到该响应信息后使用新的帧结构与网络设备之间进行通信。
如果终端发送的帧结构更改请求中已经包含期望的新的帧结构的信息，则网络设备发送给终端的响应信息中可以简单携带表示同意或者不同意终端使用所述期望的新的帧结构的信息即可，比如，采用现有通信协议中ACK/NACK(中文全称：确认/不确认；英文全称：Acknowledged/Not Acknowledged)信号的发送方式，ACK信号表示同意终端建议的帧结构，NACK表示不同意终端期望的新的帧结构。或者将是否采用终端期望的新的帧结构作为一个域放到现有的下行控制信道中，这样，只需要一个比特即可，比如用1表示同意，用0表示不同意。特别地，还有个更简化的响应方式，即网络设备不但用0表示不同意终端期望的帧结构，而且还表示不同意终端更改帧结构，即要么采用终端期望的新的帧结构，要么就继续当前的帧结构，图5就给出了这种响应方式，这种响应方式比较简便，当然在灵活性上有所欠缺，属于一个兼顾复杂度和灵活性的折中方案。
如果终端发送的更改请求不包含期望的新的帧结构，或者网络设备最终确定的新的帧结构不同于终端期望的新的帧结构，那么网络设备在响应信息中则包括新的上下行帧结构或者新的上下行帧结构的索引。响应信息可以通过一条独立的消息发送给终端，也可以包括在其它消息中发送给终端，例如直接包括在PDCCH(中文全称：下行控制物理信道；英文全称：Physical Downlink Control Channel)等上下行调度控制信道或RRC(中文全称：无线资源控制层；英文全称：Radio Resource Control)信令中。
网络设备在收到终端发送的帧结构更改请求后如果不同意更改，也可以拒绝该帧结构更改请求。例如，网络设备根据当前的负载情况、终端的业务、位置、干扰情况或信道信息等参数中的一个或者多个判断不能更改帧结构，则可以拒绝该帧结构更改请求，在这种情况下，终端还是按照原有的帧结构与网络设备通信。或者网络设备确认的新的帧结构与终端原有的帧结构一致时，同样表示网络设备不同意该更改请求。特别地，即使这种情况下，网络设备还是可以通过响应信息将终端当前使用的帧结构的索引发送给终端，终端收到该消息后，发现响应信息中的帧结构的索引值与终端当前使用的帧结构的索引值一样，由此确定网络设备拒绝该终端本次更改帧结构的请求。
对于上述终端只发送帧结构更改请求而不指定期望的新的帧结构的方式，这是由于网络设备有更多的全局信息，有利于做出更适合系统的调度，同时也可以简化终端的处理，有利于延长终端的寿命。
而对于由终端指定期望的新的帧结构的方式，会加大终端处理复杂度，但是可以使终端获得最合适的帧结构，提升用户体验。
进一步地，如果终端发现新的帧结构还不能满足需求，则可以再次发起帧结构更改请求。
通常，网络设备与终端在发送和接收响应信息的下一帧更改为新的帧结构。特别地，网络设备还可以确定帧结构更改起始的时间，并在发送给终端的响应信息中包括该帧结构更改起始的时间，这种情况下，网络设备与终端会在该帧结构更改起始的时间将帧结构更改为新的帧结构进行通信。
实施例二
上面的实施例中是以终端发起帧结构更改请求为例来进行说明的，在实际应用中，也可以由网络设备来发起帧结构更改请求。
网络设备在当前的帧结构不满足终端或者网络设备的需要时为所述终端确定新的帧结构；所述网络设备向所述终端发送用于指示所述终端使用新的帧结构的信息。终端当前的帧结构不满足终端的需要的情况有很多，具体可以参见前面实施例一的描述。终端当前的帧结构不满足网络设备的需要主要是指网络设备的负载不能很好地支持终端当前的帧结构，比如在网络设备已经满负荷的情况下，又有新的业务加入，这时候，网络设备不能很好地维持所有原有终端的帧结构，需要主动调整所有原有终端中的某一个或者某一部分终端的帧结构，达到新的负载平衡。至于网络设备如何为终端确定新的帧结构也可以参见前面实施例一的描述。
比如当前终端A的帧结构是帧结构0，该帧结构下大部分子帧都是分配给上行的，但若网络设备对于终端A附近的其他终端的业务是传输视频等大容量业务，这时候为了控制终端A的上行传输对于其他终端的干扰，网络设备可以主动调整终端A的帧结构，适当减少其上行传输，例如更改为帧结构2。
如图6所示，终端100为网络设备200服务的任一终端(注意这里是任一终端，即对该网络设备服务的不同终端可以做各自独立的处理)，网络设备200可以根据终端100当前的业务类型(例如，业务类型的变化)、终端100的位置信息、终端100的信道质量、终端100的干扰、网络设备200的负载或者其他情形中的一个或多个确定该终端100当前的帧结构需要调整，则网络设备200主动发起改变帧结构，例如，在步骤501中直接向终端100发送用于指示终端100使用新的帧结构的信息(例如，新的帧结构对应的索引值)。另外，这个用于指示终端100使用新的帧结构的信息可以通过一条独立的消息发送给终端100，也可以包括在其它消息中发送给终端100，例如直接包括在PDCCH等上下行调度控制信道或RRC信令中。不同于由终端发起的上下行帧结构更改请求需要网络设备同意，由网络设备发起的这种更改直接通知终端即可。当然，终端也可以决定同意或者拒绝更改的响应消息，但考虑到网络设备有更多的全局信息且由网络设备进行资源调度，所以一般不建议这个步骤，这也是图6中在步骤502，终端100的‘对用于指示终端使用新的帧结构的信息的响应’以虚线表示的原因，表示终端一般不采用这个步骤，而是直接接受网络设备更改的上下行帧结构，然后在步骤503终端100与网络设备200就按照所更改的新的帧结构通信。
通常网络设备与终端在发送和接收用于指示所述终端使用新的帧结构的信息的下一帧更改为新的帧结构。特别地，网络设备发送的用于指示所述终端使用新的帧结构的信息中还可以包括帧结构更改起始的时间，这种情况下网络设备与终端会 在该帧结构更改起始的时间将帧结构更改为新的帧结构进行通信。
实施例三
图7示出了本申请实施例一中的终端与网络设备通信的结构框图，为了便于说明，仅示出了与本申请实施例相关的部分。图7所示的终端100包括：天线110，发送器120，接收器130，处理器140，存储器150。天线110用于发送和接收信号，与发送器120和接收器130耦合。特别地，发送器120和接收器130还可以合并成收发器160。存储器150与处理器150耦合，用于存储能被处理器140执行的程序代码以及各种帧结构，还可以存储各种帧结构的索引表，处理器140用于执行存储器150中的代码，在所述终端当前使用的帧结构不满足所述终端的需要时，产生帧结构更改请求并传递至所述发送器120。发送器120用于通过所述天线110向网络设备200发送来自于所述处理器140的帧结构更改请求。接收器130用于通过天线110接收来自网络设备200的响应信息，并将该响应信息传递到处理器140。响应信息中包括用于指示所述终端使用新的帧结构的信息或者用于指示不同意更改所述终端当前使用的帧结构的信息。
处理器140收到该响应信息后根据该响应信息进行处理，例如，如果响应信息中包括用于指示同意更改所述终端当前使用的帧结构的信息，当响应信息中包括新的帧结构的信息(例如，新的帧结构的的索引值或者同意终端期望的帧结构)时，处理器140从存储器150中读取索引值对应的帧结构并更新帧结构。随后处理器140通知发送器120和接收器130按照所述新的帧结构通过天线110与网络设备200进行通信。响应信息中还可以包括帧结构更改的起始时间，则处理器140指示发送器120和接收器130在该帧结构更改的起始时间通过天线110与网络设备按新的帧结构通信。反之，如果响应信息中包括用于指示不同意更改所述终端当前使用的帧结构的信息，则处理器140通知发送器120和接收器130仍旧按照当前使用的帧结构通过天线110与网络设备200进行通信。终端当前的帧结构不满足终端的需要的情况有很多，具体可以参见前面方法实施例中的描述。帧结构更改请求以及响应信息的具体内容与方法实施例一中相应的内容一致。
图7所示的网络设备200包括：天线210，发送器220，接收器230，处理器240，存储器250。天线210与发送器220和接收器230耦合，用于发送和接收信号。特别地，发送器220和接收器230还可以合并成收发器260。接收器230用于通过天线210接收来自终端100的帧结构更改请求并传递到处理器240。该帧结构更改请求中可以包括终端期望的新的帧结构也可以不包括终端期望的新的帧结构，具体可以参见方法实施例一的描述。
存储器250与处理器240耦合，用于存储能被处理器240执行的程序代码以及各种帧结构，还可以存储各种帧结构的索引表。处理器240用于执行存储器250中的代码，处理器240在接收器230收到来自终端100的帧结构更改请求后产生一个响应信息，并将该响应信息传递给发送器220。具体地，处理器240收到所述帧结构更改请求后确定是否同意更改所述终端100当前使用的帧结构；并根据确定的结果产生一个响应信息；如果同意更改终端100当前使用的帧结构，则响应信息中包括用于指示所述终端100使用新的帧结构的信息，另外，响应信息中还可以包括处理器240确定的帧结构更改的起始时间，则处理器240还指示发送器220和接收器230在该帧结构更改的起始时间通过天线210与终端按新的帧结构通信。如果不同意更改终端100当前使用的帧结构，则响应信息中包括用于指示不同意更改所述终端100当前使用的帧结构的信息。
发送器220通过天线210向终端100发送来自于处理器240的响应信息。
其中处理器240还用于根据终端100需求的业务类型、所述终端100的位置信 息、所述终端100的信道质量、所述终端100的干扰、所述网络设备200的负载中的一个或者多个参数来确定是否同意终端100的帧结构更改请求，如果同意，则还要根据这些参数中的一个或多个为终端100确定一个的新的帧结构。处理器240据此产生响应信息。处理器240收到帧结构更改请求后如何确定新的帧结构以及响应信息的具体步骤，可以参见前面方法实施例一中对于网络设备的描述。
实施例四
在本实施例中，沿用了前面图7的设备结构示意图，但是网络设备和终端功能与前面的实施例都有所不同。本实施例的设备用于实现本申请实施例二调整帧结构的方法。同样地，为了便于说明，仅示出了与本发明实施例相关的部分：天线，发送器，接收器，处理器，存储器。
图7所示的网络设备200包括天线210，发送器220，处理器240，存储器250。天线210与发送器220耦合，用于发送信号。存储器250与处理器240耦合，用于存储能被处理器240执行的程序代码以及各种帧结构，还可以存储各种帧结构的索引表。处理器240用于执行存储器250中的代码，在终端100当前的帧结构不满足所述终端100或者所述网络终端200的需要时，为所述终端100确定新的帧结构，并将所述新的帧结构的信息传递给所述发送器220。例如，处理器240当前的帧结构不满足所述终端100或者所述网络终端200的需要时，产生用于指示所述终端使用新的帧结构的信息，并将该用于指示所述终端使用新的帧结构的信息传递给发送器220，另外，用于指示所述终端使用新的帧结构的信息中还可以包括处理器240确定的帧结构更改的起始时间，则处理器240还指示发送器220和接收器230在该帧结构更改的起始时间通过天线210与终端按新的帧结构通信。
所述发送器220用于通过所述天线210向所述终端100发送所述新的帧结构的信息。至于处理器240是如何为所述终端100确定新的帧结构，以及发送器220如何向终端100发送该新的帧结构的信息的具体实现方式可以参见前面方法实施例二中的相关描述。
终端100收到网络设备200发送的新的帧结构后可以向该网络设备200反馈一个响应信息，用于通知网络设备200，终端100同意更改当前的帧结构或者不同意更改当前的帧结构。因此，该网络设备200还可以包括一个接收器230，该接收器230与天线210和处理器240耦合，用于通过天线210接收来自终端100的响应信息，并将该响应信息传递到处理器240。特别地，发送器220和接收器230还可以合并成收发器260。
上述新的帧结构的信息可以是新的帧结构的索引值。在此种情况下，处理器240为终端100确定好新的帧结构后可以从存储器250中读取该新的帧结构对应的索引值，并将其传递给所述发送器220通过天线210发送给终端100。
终端当前的帧结构不满足终端的需要的情况有很多，具体可以参见方法实施例一或方法实施例二中的相关描述。
图7所示的终端包括天线110，发送器120和接收器130，处理器140，存储器150。天线110与发送器120和接收器130耦合，用于发送和接收信号。特别地，发送器120和接收器130还可以合并成收发器160。接收器130用于通过天线110接收来自网络设备200的用于指示所述终端使用新的帧结构的信息并传递到处理器140。存储器150与处理器150耦合，用于存储能被处理器140执行的程序代码以及各种帧结构，还可以存储各种帧结构的索引表，处理器140用于执行存储器150中的代码，在需要终端响应时产生响应信息并将响应信息传递到发送器120，发送器120通过天线110向网络设备200发送该响应信息。处理器140用于收到上述用于指示所述终端使用新的帧结构的信息后，对该用于指示所述终端使用新的帧结构的 信息进行解析获取上述新的帧结构。用于指示所述终端使用新的帧结构的信息中还可以包括帧结构更改的起始时间，则处理器140指示发送器120和接收器130在该帧结构更改的起始时间通过天线110与网络设备按新的帧结构通信。另外，处理器140还可以用于在同意更改帧结构的时候产生一个表示同意更改的响应信息，在不同意更改帧结构的时候产生一个拒绝更改的响应信息。
上述新的帧结构的信息可以是新的帧结构的索引值。在此种情况下，处理器140获取上述新的帧结构的索引值后可以从存储器150中获取该新的帧结构。
用于指示所述终端使用新的帧结构的信息以及终端响应信息的具体内容与实施例二中相应的内容一致，此处不再赘述。
上述实施例三和四中的天线110或天线210，既可以是单天线也可以是多天线。
在本申请所提供的几个实施例中，应该理解到，所揭示的方法和装置，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述器件的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个器件可以结合形成一个新的器件。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置，器件或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。本申请各个实施例中的器件为物理单元，其部分功能可以通过软件实现可以可以通过硬件实现，本领域的技术人员可以根据实际的需要来选择相应的实现方式。本发明的处理器可以是通用的处理器，可以是集成电路，也可以是芯片。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。

Claims (35)

  1. 一种调整帧结构的方法，其特征在于，所述方法包括：
    终端向网络设备发送帧结构更改请求；所述帧结构更改请求用于请求所述网络设备更改所述终端当前使用的帧结构，所述终端是所述网络设备服务的一个终端；
    在所述网络设备同意更改所述终端当前使用的帧结构的情况下，所述终端接收来自所述网络设备的响应信息，所述响应信息中包括用于指示所述终端使用新的帧结构的信息。
  2. 如权利要求1所述的方法，其特征在于，所述终端向网络设备发送的帧结构更改请求中包含所述终端期望使用的新的帧结构的信息。
  3. 如权利要求2所述的方法，其特征在于，所述响应信息中包括用于指示所述终端使用新的帧结构的信息为：所述响应信息携带表示同意所述终端使用所述期望的新的帧结构的信息。
  4. 如权利要求1-3中任意一项所述的方法，其特征在于，所述用于指示所述终端使用新的帧结构的信息为所述新的帧结构的索引值。
  5. 如权利要求1-4中任意一项所述的方法，其特征在于，所述方法还包括：所述终端收到所述响应信息后使用所述新的帧结构与所述网络设备进行通信。
  6. 如权利要求1所述的方法，其特征在于，所述方法还包括：
    在网络设备不同意更改终端当前使用的帧结构的情况下，所述终端接收来自所述网络设备的另一响应信息，所述另一响应信息中包括用于指示不同意更改所述终端当前使用的帧结构的信息。
  7. 如权利要求6所述的方法，其特征在于，所述方法还包括：所述终端收到所述另一响应信息后使用所述当前的帧结构与所述网络设备进行通信。
  8. 如权利要求1至7中任意一项所述的方法，其特征在于，所述帧结构更改请求是在所述终端确定当前使用的帧结构不满足所述终端的需要时发送的。
  9. 一种帧结构调整的方法，其特征在于，所述方法包括：
    网络设备接收终端发送的帧结构更改请求,所述帧结构更改请求用于请求所述网络设备更改所述终端当前使用的帧结构，所述终端是所述网络设备服务的一个终端；
    在所述网络设备同意更改所述终端当前使用的帧结构的情况下，所述网络设备向所述终端发送响应信息，所述响应信息中包括用于指示所述终端使用新的帧结构的信息。
  10. 如权利要求9所述的方法，其特征在于，所述帧结构更改请求中包含所述终端期望使用的新的帧结构的信息。
  11. 如权利要求10所述的方法，其特征在于，所述响应信息中包括用于指示所述终端使用新的帧结构的信息为：所述响应信息携带表示同意所述终端使用所述期望的新的帧结构的信息。
  12. 如权利要求9-11任意一项所述的方法，其特征在于，所述用于指示所述终端使用新的帧结构的信息为所述新的帧结构的索引值。
  13. 如权利要求9所述的方法，其特征在于，所述方法还包括：在所述网络设备不同意更改所述终端当前使用的帧结构的情况下，所述网络设备向所述终端 发送另一响应信息，所述另一响应信息中包括用于指示不同意所述终端更改当前使用的帧结构的信息。
  14. 一种帧结构调整的方法，其特征在于：
    网络设备为终端确定新的帧结构，所述终端是所述网络设备服务的一个终端；
    所述网络设备向所述终端发送用于指示所述终端使用新的帧结构的信息。
  15. 如权利要求14所述的方法，其特征在于，所述网络设备为终端确定新的帧结构包括：所述网络设备在当前的帧结构不满足所述终端或者所述网络设备的需要时为所述终端确定所述新的帧结构。
  16. 如权利要求14或15所述的方法，其特征在于，所述用于指示所述终端使用新的帧结构信息为新的帧结构的索引值。
  17. 一种终端，所述终端是网络设备服务的一个终端，且所述终端包括天线、发送器、接收器、存储器和处理器，所述天线与所述发送器和所述接收器耦合，所述处理器与所述发送器、所述接收器、所述存储器耦合；
    所述存储器用于存储能被所述处理器执行的程序代码；所述程序代码被所述处理器执行时，所述处理器用于产生帧结构更改请求并传递至所述发送器,所述帧结构更改请求用于请求所述网络设备更改所述终端当前使用的帧结构；
    所述发送器用于通过所述天线向所述网络设备发送来自于所述处理器的帧结构更改请求；
    在所述网络设备同意更改所述终端当前使用的帧结构的情况下，所述接收器用于通过所述天线接收来自所述网络设备的响应信息并传递至所述处理器，所述响应信息中包括用于指示所述终端使用新的帧结构的信息；
    当所述指令被所述处理器执行时，所述处理器还用于根据所述响应信息进行处理。
  18. 如权利要求17所述的终端，其特征在于，所述帧结构更改请求中包含所述终端期望使用的新的帧结构的信息。
  19. 如权利要求18所述的终端，其特征在于，所述响应信息中包括用于指示所述终端使用新的帧结构的信息包括：所述响应信息携带表示同意所述终端使用所述期望的新的帧结构的信息。
  20. 如权利要求17-19中任意一项所述的终端，其特征在于，所述新的帧结构的信息为所述新的帧结构的索引值。
  21. 如权利要求20所述的终端，其特征在于，所述存储器还用于存储各种帧结构以及所述各种帧结构对应的索引值。
  22. 如权利要求17-21任意一项所述的终端，其特征在于，所述处理器用于根据所述响应信息进行处理包括：所述处理器用于指示所述发送器和所述接收器按照所述新的帧结构通过所述天线与所述网络设备进行通信。
  23. 如权利要求17所述的终端，其特征在于，还包括，在所述网络设备不同意更改所述终端当前使用的帧结构的情况下，则所述接收器还用于通过所述天线接收来自所述网络设备的另一响应信息并传递至所述处理器，所述另一响应信息中包括用于指示不同意更改所述终端当前使用的帧结构的信息；
    当所述指令被所述处理器执行时，所述处理器还用于根据所述另一响应信息进行处理。
  24. 如权利要求23所述的终端，其特征在于，所述处理器用于根据所述另一响应 信息进行处理为：所述处理器用于指示所述发送器和所述接收器按照所述当前使用的帧结构通过所述天线与所述网络设备进行通信。
  25. 如权利要求17-24任意一项所述的终端，其特征在于，所述帧结构更改请求是在所述处理器确定当前使用的帧结构不满足所述终端的需要时产生的。
  26. 一种网络设备，其特征在于，所述网络设备包括天线、发送器、接收器、存储器和处理器，所述天线与所述发送器和所述接收器耦合，所述处理器与所述发送器、所述接收器、所述存储器耦合；
    所述存储器用于存储能被所述处理器执行的程序代码；
    所述接收器用于通过所述天线接收来自终端的帧结构更改请求,所述帧结构更改请求用于请求所述网络设备更改所述终端当前使用的帧结构，所述终端是所述网络设备服务的一个终端；
    所述程序代码被所述处理器执行时，所述处理器同意更改所述终端当前使用的帧结构，所述处理器产生一个响应信息，并将所述响应信息传递给所述发送器；所述响应信息中包括用于指示所述终端使用新的帧结构的信息；
    所述发送器用于通过所述天线向所述终端发送来自于所述处理器的响应信息。
  27. 如权利要求26所述的网络设备，其特征在于，所述的帧结构更改请求中包含所述终端期望使用的新的帧结构的信息。
  28. 如权利要求27所述的方法，其特征在于，所述响应信息中包括用于指示所述终端使用新的帧结构的信息包括：所述响应信息携带表示同意所述终端使用所述期望的新的帧结构的信息。
  29. 如权利要求26-28任意一项所述的网络设备，其特征在于，所述的新的帧结构的信息为所述新的帧结构的索引值。
  30. 如权利要求29所述的网络设备，其特征在于，所述存储器还用于存储所述各种帧结构以及所述各种帧结构对应的索引值。
  31. 如权利要求26所述的网络设备，其特征在于，还包括，所述程序代码被所述处理器执行时，所述处理器不同意更改所述终端当前使用的帧结构，所述处理器产生另一响应信息，并将所述另一响应信息传递给所述发送器；所述另一响应信息中包括用于指示不同意更改所述终端当前使用的帧结构的信息。
  32. 一种网络设备，其特征在于，所述网络设备包括天线、发送器、存储器和处理器，所述天线与所述发送器耦合，所述处理器与所述发送器、所述存储器耦合；
    所述存储器用于存储能被所述处理器执行的程序代码；
    所述程序代码包括指令，当所述指令被所述处理器执行时，所述处理器用于为终端确定新的帧结构，并产生用于指示所述终端使用新的帧结构的信息，将所述用于指示所述终端使用新的帧结构的信息传递给所述发送器，所述终端是所述网络设备服务的一个终端；
    所述发送器用于通过所述天线向所述终端发送所述用于指示所述终端使用新的帧结构的信息。
  33. 如权利要求32所述的网络设备，其特征在于，所述处理器用于为终端确定新的帧结构包括：所述处理器在当前的帧结构不满足所述终端或者所述网络设备的需要时为所述终端确定新的帧结构。
  34. 如权利要求32或33所述的网络设备，其特征在于，所述的新的帧结构信息 为新的帧结构的索引值。
  35. 如权利要求32-34任意一项所述的网络设备，其特征在于，所述存储器还用于存储各种帧结构以及所述各种帧结构对应的索引值。
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