WO2011147167A1 - Procédé de transmission de messages, station de base, terminal, et système de communication multistandard - Google Patents

Procédé de transmission de messages, station de base, terminal, et système de communication multistandard Download PDF

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Publication number
WO2011147167A1
WO2011147167A1 PCT/CN2010/078891 CN2010078891W WO2011147167A1 WO 2011147167 A1 WO2011147167 A1 WO 2011147167A1 CN 2010078891 W CN2010078891 W CN 2010078891W WO 2011147167 A1 WO2011147167 A1 WO 2011147167A1
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Prior art keywords
subframe
configuration information
frame
superframe
configuration
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PCT/CN2010/078891
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English (en)
Chinese (zh)
Inventor
方惠英
曲红云
关艳峰
鲁照华
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中兴通讯股份有限公司
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Publication of WO2011147167A1 publication Critical patent/WO2011147167A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present invention relates to the field of communications, and in particular to a method for transmitting a message, a base station, a terminal, and a multi-communication system. Background technique
  • OFDM Orthogonal Frequency Division Multiplexing
  • WiMAX WiMAX
  • LTE Long Term Evolution
  • a WiMAX system based on OFDM A is a system using OFDM technology. From the perspective of the frequency domain, different users occupy a certain number of orthogonal subcarrier resources. To achieve the purpose of multiple access.
  • OFDM Orthogonal Frequency Division Multiplexing
  • IMT-AdV Advanced Mobile Radio Service
  • 3G Third Generation
  • candidate technologies for IMT-ADV mainly include LTE+ and IEEE802.16m.
  • LTE is an evolution of the third generation mobile communication system (3th Generation, 3G for short).
  • the TGm task force of the IEEE 802.16 working group is working to develop an improved air interface specification 802.16m for mobile WiMAX systems that can support higher peak rates, higher spectral efficiency and sector capacity.
  • the frame structure of the LTE-Time Division Duplex (LTE-TDD) uses a superframe structure of 10ms period.
  • the superframe structure has multiple frame configuration modes, including 5ms conversion point period and 10ms conversion.
  • a plurality of frame configurations of a dot period, and a special subframe including both a downlink OFDM symbol and an uplink OFDM symbol is introduced.
  • all frame configuration modes are 5ms transition point periods. Due to the different frame transition point period settings of the frames in the superframe in the future wireless communication system for IMT-ADV, the existing frame structure design scheme in the message communication system cannot meet the coexistence requirements of the future evolution of LTE and WiMAX.
  • a primary object of the present invention is to provide a method for transmitting a message, a base station, a terminal, and a multi-communication system to solve the above-mentioned existence of different frame transition point periods due to frames in a superframe, resulting in existing information in the message communication system.
  • the frame structure design solution cannot meet the coexistence requirements of the future evolution of LTE and WiMAX.
  • a method of transmitting a message is provided.
  • the method for transmitting a message according to the present invention includes: generating superframe configuration information and subframe configuration information according to a coexistence configuration of a multi-communication system, wherein the coexistence configuration is configured to support a frame structure in which a multi-communication system coexists;
  • the configuration information configures part or all of the unit frames of the superframe of the radio frame in the multi-communication system, where the superframe configuration information is used to indicate the configuration attribute of the unit frame; the subframe in the unit frame is configured according to the subframe configuration information, where the subframe
  • the configuration information is used to indicate the distribution attribute of the subframe; ⁇ the message is sent by using the radio frame.
  • the type of the subframe includes at least one of the following: a downlink subframe, an uplink subframe, and a special subframe, where the special subframe refers to the subframe including the downlink orthogonal frequency division multiplexing (OFDM) symbol and the uplink OFDM symbol.
  • the partial or all unit frames of the superframe of the radio frame in the multi-communication system are configured according to the superframe configuration information, including: the superframe configuration information configuration part or all of the unit frames are configured with the same or different subframes.
  • the subframe in the unit frame is one of the following formats: the subframes are all composed of downlink subframes, and the subframes are all composed of uplink subframes, The subframes are all composed of special subframes, the subframes are composed of downlink subframes and uplink subframes, the subframes are composed of downlink subframes and special subframes, and the subframes are composed of uplink subframes and special subframes.
  • the subframe length is the same.
  • a subframe consists of a plurality of elementary symbol units and/or idle time slots.
  • the subframe includes 12 OFDM symbols and a free slot, wherein the cyclic prefix CP of the subframe is 2.5 us and the subcarrier spacing is 12.5 k; the subframe includes 11 OFDM symbols and idle slots, where the cyclic prefix of the subframe The CP is 9.375us and the subcarrier spacing is 12.5k.
  • the subframe includes 10 OFDM symbols and idle slots.
  • the subframe has a cyclic prefix CP of 16.875us and a subcarrier spacing of 12.5k.
  • the superframe length is 20ms, the unit frame length is 5ms, the superframe length is 20ms, and the unit frame length is 10ms.
  • the terminal After the superframe configuration information and the subframe configuration information are generated according to the coexistence configuration of the multi-communication system, the terminal includes: Receiving the superframe configuration information from the base station; determining whether to acquire the subframe configuration information according to the superframe configuration information. The method further includes: if the judging result is that the superframe configuration information is configured to indicate that the subframe in the unit frame of the superframe is In the non-full uplink subframe or the non-full downlink subframe, the terminal acquires the subframe configuration information.
  • a base station is provided.
  • the base station includes: a generating module, configured to The superframe configuration information and the subframe configuration information are generated according to the coexistence configuration of the multi-communication system, wherein the coexistence configuration is configured to support a frame structure in which the multi-communication system coexists; the first configuration module is configured to configure according to the superframe configuration information. a part or all of a unit frame of a superframe of a radio frame in a multi-communication system, wherein a superframe configuration
  • the second configuration module is configured to configure a subframe in a unit frame according to the subframe configuration information, where the subframe configuration information is used to indicate a distribution attribute of the subframe, and the sending module is configured to be used.
  • the wireless frame transmits a message.
  • a terminal configured to include: a receiving module configured to receive superframe configuration information from a base station; The method is configured to determine whether to obtain the subframe configuration information according to the superframe configuration information, and the obtaining module is configured to determine that the superframe configuration information is a subframe in the unit frame indicating the superframe, and the configuration manner is a non-full uplink subframe or a non-full subframe. In the downlink sub-frame, the sub-frame configuration information is obtained.
  • a multi-communication system is provided.
  • the multi-communication system includes: the base station and the terminal According to the present invention, the superframe configuration information and the superframe configuration information are generated according to the coexistence configuration of the multi-communication system.
  • Subframe configuration information wherein the coexistence configuration is configured to support a frame structure in which a multi-communication system coexists; and some or all unit frames of a superframe of a radio frame in the multi-communication system are configured according to the superframe configuration information, wherein
  • the frame configuration information is used to indicate a configuration attribute of the unit frame;
  • the sub-frame configuration information is configured to be a sub-frame in a unit frame, where the sub-frame configuration information is used to indicate a distribution attribute of the sub-frame; and the radio frame is used to send a message, and the multi-communication system is solved.
  • FIG. 1 is a flowchart of a method for transmitting a message according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a frame structure according to an embodiment of the present invention
  • FIG. 3 is a second schematic diagram of a frame structure according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a subframe structure according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a subframe structure according to an embodiment of the present invention
  • FIG. 7 is a subframe structure of an embodiment of the present invention
  • FIG. 8 is a schematic diagram of a superframe configuration structure according to an embodiment of the present invention
  • FIG. 9 is a schematic diagram of a superframe configuration structure according to an embodiment of the present invention
  • FIG. FIG. 12 is a structural block diagram of a base station according to an embodiment of the present invention
  • Embodiment 1 This embodiment provides a method for transmitting a message.
  • 1 is a flowchart of a method for transmitting a message according to an embodiment of the present invention. As shown in FIG.
  • the method includes the following steps: step S20 to step 4: S20: Step S20, according to the coexistence of the multi-communication system Configuring to generate superframe configuration information and subframe configuration information, where the coexistence configuration is to support the configuration of the frame structure in which the multi-communication system coexists; and in step S40, the superframe of the radio frame in the multi-communication system is configured according to the superframe configuration information. a partial or all unit frame of the frame, where the superframe configuration information is used to indicate a configuration attribute of the unit frame; and in step S60, the subframe in the unit frame is configured according to the subframe configuration information, where the subframe configuration information is used to indicate the subframe.
  • the multi-communication system uses different frame structures with different conversion points. Because the frame structure is not uniform, the multi-communication system is incompatible, and there is a problem of interference when transmitting a message.
  • the superframe configuration information and the subframe configuration information are generated, and the unit frame and the subframe are respectively configured according to the above two kinds of information, thereby solving the interference problem when the multi-communication system for the IMT-ADV coexists, and according to
  • the frame configuration design suitable for the coexistence scenario is selected to adapt to the scenario of multi-system coexistence configuration in the next-generation broadband mobile communication system, thereby satisfying the requirements of IMT-Advanced for system performance, and different frames between multiple communication systems.
  • the type of the subframe includes at least one of the following: a downlink subframe, an uplink subframe, and a special subframe, where the special subframe refers to the subframe including the downlink orthogonal frequency division multiplexing OFDM symbol and the uplink OFDM symbol.
  • the subframe type is configured according to system requirements, and the subframe type is improved.
  • the flexibility of the subframe configuration includes: - configuring some or all of the unit frames according to the superframe configuration information, using the same or different subframe configurations .
  • the structure of the unit frame can be configured according to different system requirements, and the flexibility of the unit frame configuration is improved.
  • the sub-frame in the sub-frame configuration information configuration unit frame includes: the sub-frame configuration information configuration unit frame, the sub-frame in the frame is one of the following formats: the sub-frames are all composed of the downlink sub-frames, and the sub-frames are all composed of the uplink sub-frames.
  • the subframes are all composed of special subframes, the subframes are composed of downlink subframes and uplink subframes, the subframes are composed of downlink subframes and special subframes, and the subframes are composed of uplink subframes and special subframes.
  • the subframe structure can be flexibly configured according to the requirements of different communication systems, and resource utilization is improved.
  • the subframes are the same length.
  • the subframes are all configured to be of equal length, which improves the efficiency of subframe configuration.
  • the subframe consists of a plurality of elementary symbol units and/or idle time slots.
  • the composition of the subframes is flexibly configured according to the system configuration.
  • the subframe when the sub-carrier interval is 12.5 k, when the cyclic prefix CP of the subframe is 2.5 us, the subframe includes 12 OFDM symbols and idle slots; when the cyclic prefix CP of the subframe is 9.375 us, The subframe includes 11 OFDM symbols and idle slots; when the cyclic prefix CP of the subframe is 16.875us, the subframe includes 10 OFDM symbols and idle slots.
  • the number of OFDMs in a subframe is flexibly configured according to different CP lengths.
  • the OFDM symbol length is 82.5 us
  • the OFDM symbol length is 89.375 us
  • the OFDM symbol length is 96.875 us.
  • the method further includes: receiving, by the terminal, superframe configuration information from the base station; determining, according to the superframe configuration information, whether to acquire the sub Frame configuration information.
  • the terminal receives the superframe configuration information, and according to the superframe configuration information, determines whether to acquire the subframe configuration information, and implements optimal configuration of resources.
  • the terminal acquires the subframe configuration information.
  • the preferred embodiment implements the acquisition of subframe configuration information by the terminal, and improves resource utilization.
  • the frame structure in the preferred embodiment is composed of a plurality of unit frames, wherein the configuration of each unit frame in the super frame may be the same or different, and each unit frame is composed of multiple downlink subframes and/or multiple
  • the uplink subframe or the uplink subframe is composed of multiple OFDM symbols or multiple OFDM symbols and idle slots.
  • FIG. 2 is a first schematic diagram of a frame structure according to an embodiment of the present invention.
  • the superframe is composed of L unit frames, and the unit frame is composed of N subframe units, and the subframe unit can be divided into a downlink subframe unit and/or an uplink subframe unit, which can be configured according to the system.
  • the subframe unit is composed of M OFDM symbols.
  • FIG. 3 is a second schematic diagram of a frame structure according to an embodiment of the present invention.
  • a 20 ms superframe is composed of four 5 ms unit frames, and each unit frame is composed of five lms subframe units. According to different CP configurations, subframe units are composed of different numbers of OFDM symbols.
  • 4 is a schematic diagram 3 of a frame structure according to an embodiment of the present invention.
  • a superframe 101 of 20 ms is composed of two 10 ms unit frames 105, and each unit frame 105 is composed of 10 lm subframe units 103. According to different CP configurations, the subframe unit 103 is composed of a different number of OFDM symbols.
  • FIG. 5 is a schematic diagram 1 of a subframe structure according to an embodiment of the present invention.
  • the subframe unit (subframe) is composed of N unit symbols (symbols) and idle slots.
  • FIG. 6 is a second schematic diagram of a subframe structure according to an embodiment of the present invention, showing a subframe unit design with a short CP length of 2.5 us.
  • the OFDM symbol length is 82.5 us.
  • FIG. 7 is a third schematic diagram of a subframe structure according to an embodiment of the present invention, showing a subframe unit design with a standard CP length of 9.375us.
  • FIG. 8 is a fourth schematic diagram of a subframe structure according to an embodiment of the present invention, showing a subframe unit design with a long CP length of 16.875us.
  • the subframe unit includes the subframe unit including 10 OFDM symbols with a length of 16.875 us CP and a free time slot of 31.25 us long.
  • Figures 6 to 8 show the composition of the subframes set for the three CP lengths, respectively.
  • FIG. 9 is a schematic diagram 1 of a superframe configuration structure according to an embodiment of the present invention.
  • the 20ms superframe is composed of four 5ms unit frames.
  • the superframe frame configuration information is used to characterize the configuration features of each unit frame in the superframe.
  • the superframe frame configuration information represents the configuration attributes of four unit frames, as shown in Table 1. .
  • Table 1 X and Y indicate that the subframes in the unit frame are configured in the subframes in Table 2, D indicates that the subframes in the unit frame are all downlink subframes, and U indicates that the subframes in the unit frame are all uplink subframes. .
  • the 5ms unit frame in the superframe consists of five 1ms downlink subframes and/or uplink subframes.
  • the subframes in the unit frame may be composed of the downlink subframes or all of the uplink subframes or the downlink subframes and the uplink subframes, or the downlink subframes, the uplink subframes, and the special subframes.
  • the subframe configurations in different unit frames in the superframe may be the same or different, for example, unit frame 1 includes 3 downlink subframes and 2 uplink subframes; and unit frame 3 is all downlink subframes. composition.
  • the subframe configuration information is used to represent the distribution information of the downlink subframe and the uplink subframe of each subframe in the unit frame, as shown in Table 2, in Table 2, D, U and S represent downlink, uplink, and special subframes, respectively.
  • FIG. 10 is a schematic diagram of a superframe configuration structure according to an embodiment of the present invention.
  • the 20 ms superframe is composed of two 10 ms unit frames, wherein the superframe frame configuration information is used to characterize the configuration features of each unit frame in the superframe.
  • the superframe frame configuration information characterizes the configuration properties of two unit frames, as shown in Table 3.
  • Table 3 X, and Y indicate that the subframe in the unit frame is configured with the subframe in Table 4
  • D indicates that all the subframes in the unit frame are downlink subframes
  • U indicates that the subframes of the unit frame are all uplinks. Subframe.
  • the 10ms unit frame in the superframe consists of 10 1ms downlink subframes and/or uplink subframes.
  • the subframes in the unit frame may all be composed of the downlink subframe or all of the uplink subframe or the downlink subframe and the uplink subframe.
  • the subframe configuration in different unit frames in the superframe may be the same or different unit frame 1 and unit frame 2, using the same subframe configuration. The same configuration is used in Figure 10.
  • 11 is a schematic diagram of a superframe configuration structure according to an embodiment of the present invention. As shown in FIG. 11, unit frame 1 and unit frame 2 are configured with different subframes, for example, unit frame 1 includes 7 downlink subframes and 3 uplinks.
  • Subframe, and unit frame 2 consists of 8 downlink subframes and 2 uplink subframes.
  • the subframe configuration information is used to represent the distribution information of the downlink subframe and the uplink subframe of each subframe in the unit frame, as shown in Table 4, Table 4 D, U And S represent the downlink, uplink, and special subframes, respectively.
  • Table 3 Superframe frame configuration information
  • FIG. 12 is a structural block diagram of a base station according to an embodiment of the present invention.
  • the base station includes: a generating module 20, a first configuration module 40, a second configuration module 60, and a sending module 80.
  • the generating module 20 is configured to generate superframe configuration information and subframe configuration information according to the coexistence configuration of the multi-communication system, wherein the coexistence configuration is to support coexistence of the multi-communication system a configuration of the frame structure;
  • the first configuration module 40 is connected to the generating module 20, configured to configure part or all of the unit frames of the superframe of the radio frame in the multi-communication system according to the superframe configuration information generated by the generating module 20, where The superframe configuration information is used to indicate the configuration attribute of the unit frame.
  • the second configuration module 60 is connected to the generating module 20, configured to configure the subframe in the unit frame according to the subframe configuration information generated by the generating module 20, where the subframe configuration information a distribution attribute for indicating a subframe; a sending module 80, connected to the first configuration module 40 and the second configuration module 60, for using the first configuration module 40 and the wireless frame configured by the second configuration module 60 sends a message.
  • the multi-communication system uses different frame structures with different conversion points. Because the frame structure is not uniform, the multi-communication system is incompatible, and there is a problem of interference when transmitting messages.
  • the generating module 20 generates the superframe configuration information and the subframe configuration information according to the coexistence configuration of the multi-communication system, and the first configuration module 40 and the second configuration module 60 respectively configure the unit frame and the subframe respectively.
  • the terminal includes: a receiving module 132, a determining module 134, and an obtaining module 136.
  • the receiving module 132 receives a superframe configuration from a base station.
  • the determining module 134 is connected to the receiving module 132 for determining whether to acquire the subframe configuration information according to the superframe configuration information received by the receiving module 132.
  • the obtaining module 136 is connected to the determining module 134 for determining the module 134. If the configuration result of the superframe configuration information is that the configuration of the subframe in the unit frame indicating the superframe is a non-full uplink subframe or a non-full downlink subframe, the subframe configuration information is acquired.
  • FIG. 14 is a block diagram showing the structure of a multi-communication system according to an embodiment of the present invention, which includes a base station 2 and a terminal 4.
  • the structure of the base station 2 is the same as that of the base station described in FIG. 12.
  • the structure of the terminal 4 is the same as that of the terminal shown in FIG. 13, and will not be described here.
  • Preferred Embodiment 5 The present invention further provides a preferred embodiment, which combines the technical solutions of the foregoing preferred embodiments.
  • FIG. 5 is a block diagram showing the structure of a multi-communication system according to an embodiment of the present invention, which includes a base station 2 and a terminal 4.
  • the structure of the base station 2 is the same as that of the base station described in FIG. 12.
  • the structure of the terminal 4 is the same as that of the terminal shown in FIG. 13, and will not be described here.
  • Preferred Embodiment 5 The present invention further provides a preferred embodiment, which combines the technical solutions of the foregoing preferred embodiments.
  • Step S1501 Configure a super subframe of the base station system and a specific subframe configuration in a unit frame according to a coexistence requirement between different communication systems.
  • the subframe configurations in different unit frames in the superframe may be the same or different.
  • the superframe is composed of N unit frames, wherein the configuration features of each unit frame in the superframe are characterized by superframe frame configuration information.
  • the superframe frame configuration information characterizes the configuration attributes of the N unit frames.
  • Different unit frames in the superframe Multiple downlink subframes and/or uplink subframes are formed, and subframes in the frame structure define the same lms subframe length.
  • choose to set three different CP lengths which are short CP, standard CP and long CP.
  • the composition of a specific subframe is determined for different CP lengths. For example: Based on the subcarrier spacing (Af) of 12.5k, three different CP lengths are set for different application scenarios: short CP length is 2.5us, standard CP length is 9.375us, and long CP length is 16.875us.
  • the OFDM symbol length is 82.5 us
  • the OFDM symbol length is 89.375 us
  • the OFDM symbol length is 96.875 us.
  • the base station is configured to superframe frame configuration, and sends frame configuration information and/or subframe configuration information. Specifically, the terminal may be notified by transmitting a superframe frame configuration sequence number.
  • Step S1503 The terminal acquires superframe frame configuration information.
  • the terminal is in the super frame frame configuration information, and determines whether the subframe configuration information of the corresponding unit frame needs to be further acquired.
  • the terminal obtains the frame structure configuration information in the subframe configuration information corresponding to the unit frame.
  • the 20ms superframe is composed of four 5ms unit frames.
  • the 4 unit frames in the superframe are configured with the same or different subframes.
  • the system conversion point period is 5 ms.
  • the four unit frames in the superframe are configured with different subframes, the unit frame 1 and the unit frame 3 in the superframe are configured with the same subframe A, and the unit frame 2 and the unit frame 4 in the superframe are used.
  • Frame configuration A has the same or different subframe configuration B, as shown in superframe configuration number 2 in Table 5.
  • the system conversion point period of unit frame 2 and unit frame 4 configured with subframes different from unit frame 1 and unit frame 3 is 10 ms.
  • the multi-communication system described in the device embodiment corresponds to the foregoing method embodiment, and the specific implementation process has been described in detail in the method embodiment, and details are not described herein again.
  • the method of the present invention by using the configurable subframe configuration of the unit frame in the super frame, the interference problem of the multi-communication system for IMT-ADV coexistence can be solved, and can be selected according to the actual network deployment. It is suitable for the frame configuration design of the coexistence scenario to adapt to the scenario of multi-system coexistence configuration in the next-generation broadband mobile communication system, thus meeting the requirements of IMT-Advanced for system performance.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

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Abstract

La présente invention concerne un procédé de transmission de messages, une station de base, un terminal, et un système de communication multistandard. Ce procédé consiste: à se baser sur une configuration de coexistence d'un système de communication multistandard pour générer une information de configuration de supertrame et une information de configuration de sous-trame, la configuration de coexistence étant une configuration de structure de trame admettant la coexistence du système de communication multistandard; à se baser sur l'information de configuration de supertrame pour prendre tout ou partie des trames unitaires et les configurer en supertrames de trames radio du système de communication multistandard, l'information de configuration de supertrame servant à indiquer l'attribut de configuration des trames unitaires; à se baser sur l'information de configuration de sous-trame pour configurer les sous-trame en trames unitaires, l'information de configuration de sous-trame servant à indiquer l'attribut de distribution des sous-trames; et à transmettre un message au moyen des trames radio. La présente invention permet de résoudre le problème des interférences entre transmission de messages provoquées par la non-unicité de la structure de trame quand plusieurs systèmes de communication coexistent entre eux, et d'améliorer le taux d'utilisation des ressources.
PCT/CN2010/078891 2010-05-25 2010-11-18 Procédé de transmission de messages, station de base, terminal, et système de communication multistandard WO2011147167A1 (fr)

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