WO2008074263A1 - Procédé de transmission, système, émetteur, récepteur et procédé de réalisation d'une transmission de données - Google Patents

Procédé de transmission, système, émetteur, récepteur et procédé de réalisation d'une transmission de données Download PDF

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Publication number
WO2008074263A1
WO2008074263A1 PCT/CN2007/071282 CN2007071282W WO2008074263A1 WO 2008074263 A1 WO2008074263 A1 WO 2008074263A1 CN 2007071282 W CN2007071282 W CN 2007071282W WO 2008074263 A1 WO2008074263 A1 WO 2008074263A1
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WIPO (PCT)
Prior art keywords
time
signal
time slice
data
gap
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PCT/CN2007/071282
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English (en)
French (fr)
Inventor
Xuyong Wu
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to EP07846108A priority Critical patent/EP2124374B8/en
Publication of WO2008074263A1 publication Critical patent/WO2008074263A1/zh
Priority to US12/487,881 priority patent/US8547925B2/en
Anticipated expiration legal-status Critical
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/06Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058Allocation criteria
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18Negotiating wireless communication parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements

Definitions

  • the present invention relates to the field of communications, and in particular, to a transmission method, a transmission system, a transmitter, a receiver, and a method for implementing information transmission.
  • the system A and the system B shown in FIG. 1 are wireless communication access systems, and the system A and the system B respectively include: a terminal (Subscriber Station, SS) and a base station (BS); the system A includes: SS A1 , SSAS and BS A ; System B includes: SS B1 , SS B2 , SS B3 and BS B .
  • SS Subscriber Station
  • BS base station
  • the system A and the system B may be one of the following systems: Time Division Duplex - code division multiple access (TDD-CDMA), universal terrestrial wireless access - time division duplex (Universal Terrestrial Radio Access - Time Division Duplex, UTRA-TDD ), Time Division Duplex - Synchronous code division multiple access (TDD-SCDMA), Third Generation Mobile Telecommunication (The third generation mobile Telecommunication, 3G), World Interoperability for Microwave Access (WiMAX), Wireless Broadband Access Service (WiBro), Wireless High-speed Unlicensed Metropolitan Area Network (Wireless High-speed Unlicensed Metropolitan Area Network, WirelessHuman ), Wireless Fidelity (WiFi), High Performance Radio Local Area Network (HiererLAN), High Performance Radio Metropolitan Area Network (HiererMAN), Wireless Access Network ( Radio Access Network, RAN), wireless metropolitan area network Wireless Metropolitan Area Network (WMAN), Wireless Local Area Network (WLAN), Mobile Broadband Wireless Access (MBWA), Beyond the third Generation Mobile Telecommunication (B3G) And other and subsequent evolutionary wireless Communication access system, etc.
  • System C and System D shown in Figure 2 are wired communication access systems (such as copper access ⁇ Cable, PLC, 08, etc. ⁇ , optical access systems ⁇ such as XPON, etc. ⁇ , and subsequent use of shared media as media.
  • Point-to-multipoint (PMP) or multipoint-to-multipoint (MESH) wired access technology Such as Point-to-multipoint (PMP) or multipoint-to-multipoint (MESH) wired access technology.
  • interaction information is required in many cases. For example, in order to eliminate and mitigate interference between systems, specific parameters need to be negotiated. When the terminal switches between different types of systems, Need to control the interaction of information, etc.
  • the current technical solution mainly uses the respective networks to connect to the public network and interact with the upper layer information. To achieve, but not directly through the underlying network directly connected, especially between different network types, it is not possible to directly communicate to obtain the corresponding information.
  • embodiments of the present invention provide a transmission method, system, transmitter, receiver, and method for implementing information transmission to solve the problem of signaling interaction in a data transmission process in a multi-system or hybrid type network.
  • an embodiment of the present invention provides a transmission system, including at least a transmitter and a receiver, where
  • the transmitter is configured to determine a reference time, insert a time slice signal into the data frame according to the reference time, and send the data frame and the time slice signal;
  • the receiver is configured to determine a reference time corresponding to the transmitter, and after receiving the data frame and the time slice signal, detect a state parameter of the time slice signal, and parse the data frame according to the state parameter.
  • An embodiment of the present invention further provides a transmitter, including:
  • a time slice generating device configured to insert a time slice signal into a specific time position of the data frame according to a bit attribute of the data to be transmitted and the reference time;
  • a sending device configured to send the data frame after inserting the time slice signal and the time slice signal.
  • the embodiment of the invention further provides a receiver, including:
  • a first time device configured to determine a reference time corresponding to the transmitter
  • a time slice detecting device configured to receive a data frame of the inserted time slice signal and the time slice signal sent by a transmitter, and detect a state parameter of the time slice signal
  • a determining device configured to parse the data frame according to the state parameter of the detected time slice signal.
  • the invention also provides a transmission method, comprising:
  • the invention also provides a method for implementing information transmission, comprising:
  • the sender sets a signal transmission time parameter within a specific time period according to the information unit to be transmitted; the receiver receives the information unit according to the characteristics of the received signal within the determined specific time period.
  • the receiving party may not consider the modulation mode, the modulation frequency, and the coding mode of the received signal, and the requirements for synchronization and propagation delay of each system device are not strict.
  • the embodiments of the present invention can communicate commands or information among multiple systems to solve the problem of signaling interaction in a process of coexistence negotiation and fast handover of a multimode terminal in a multi-system or hybrid type network.
  • embodiments of the present invention can also facilitate network optimization and convergence between current and future wireless networks of various types and between wired networks using the same shared medium.
  • FIG. 1 is a schematic diagram of a wireless neighboring system in the background art
  • FIG. 2 is a schematic diagram of a wired adjacent system in the background art
  • FIG. 3 is a flowchart of a method for transmitting information by using GAP according to an embodiment of the present invention
  • 4A is an example of signal bearer gaps in a TDD data frame according to an embodiment of the present invention.
  • FIG. 4B is an example of defining a signal bearer gap with respect to a reference time point according to an embodiment of the present invention
  • FIG. 4-C is an example of selecting a reference time point according to an embodiment of the present invention
  • FIG. 5-A is a schematic diagram of a signal bearer gap in a downlink frame of a TDD data frame according to an embodiment of the present invention
  • FIG. 5-B is an example of a signal bearer gap in an uplink frame of a TDD data frame according to an embodiment of the present invention
  • FIG. 5-D is an example of a signal bearer gap in an uplink frame of an FDD data frame according to an embodiment of the present invention
  • FIG. 5-- is an example of a signal bearer gap in a TDD data frame based on a contention according to an embodiment of the present invention
  • FIG. 6-A is an example of changing a state of a GAP to bear bearer information according to an embodiment of the present invention
  • FIG. 6-B is an example of changing the state of the GAP in the embodiment of the present invention to carry information
  • FIG. 7-A is an example of information in the GAP carried by the signal strength decision signal in the signal strength decision interval according to an embodiment of the present invention
  • 7-B is a schematic diagram of the use of a signal strength decision interval for an air-full binary GAP detection according to an embodiment of the present invention.
  • 7-C is a schematic diagram of determining a multi-valued GAP detection using a signal strength decision interval according to an embodiment of the present invention
  • FIG. 9 is a schematic diagram of the information carried by the GAP by using the GAP length determination signal according to the embodiment of the present invention.
  • FIG. 10 is a drawing diagram of the information transmission mode between multiple systems according to an embodiment of the present invention.
  • 11-A is a diagram showing information transfer between systems of a hybrid type using GAP start position values in an embodiment of the present invention
  • 11-B is a diagram for transmitting information between systems of a hybrid type by using a GAP starting position value in an embodiment of the present invention
  • 11-C illustrates the use of GAP length setting and decision to transfer information between systems of a hybrid type in accordance with an embodiment of the present invention
  • 11-D illustrates the use of GAP length setting and decision to transfer information between systems of a hybrid type in accordance with an embodiment of the present invention
  • 11-E is a diagram for transmitting information between systems of a hybrid type using a signal GAP start point setting and a signal strength detection decision according to an embodiment of the present invention
  • FIG. 12 is a diagram showing an example of application in a wireless neighboring system according to an embodiment of the present invention.
  • FIG. 13 is a diagram showing an example of application in a wired neighboring system according to an embodiment of the present invention.
  • FIG. 14 is a diagram showing an application example in a wired neighboring system according to an embodiment of the present invention.
  • FIG. 15 is a schematic diagram of signaling sent by a signaling bearer GAP to a neighboring system in each system in a loop period according to an embodiment of the present invention
  • FIG. 16 is a schematic diagram showing an actual example of each system separately transmitting signaling to an adjacent system according to an embodiment of the present invention
  • FIG. 17 is a diagram showing an example of application in a wireless neighboring system according to an embodiment of the present invention.
  • FIG. 18 is a diagram showing an example of application in a wired neighboring system according to an embodiment of the present invention.
  • FIG. 19 is a schematic diagram of signaling, by using a signaling bearer GAP, in a system with no data transmission and reception in the vicinity of a GAP according to an embodiment of the present invention
  • FIG. 20 is a schematic diagram of signaling signaling by a system carrying no GAP in the vicinity of a GAP according to an embodiment of the present invention.
  • Embodiments of the present invention provide a method for transferring information between multiple systems sharing media resources, which is implemented by: transmitting a variable state characteristic of power or intensity at a specific time position on a sender, and/or in a time interval. Bearer information; at the receiving side, the received information is parsed using a particular time location, and/or state characteristics of power or intensity changes detected over the time interval.
  • the state characteristic may be the presence or absence of power or intensity, or may be a change in the specific value of power or intensity.
  • the time interval of the signal power or intensity can be used to parse the data. Therefore, the receiver may not consider the modulation mode, modulation frequency, and coding mode of the received signal, and the requirements for synchronization and propagation delay of each system equipment may not be strictly required. It can be seen that the method of the embodiment of the present invention can solve the problem of signaling interaction in the process of coexistence negotiation and fast handover of multi-mode terminals in a multi-system or hybrid type network by using inter-communication commands or information among multiple systems. In addition, network optimization and convergence between existing and future wireless networks and wired networks using the same shared medium can be promoted.
  • An embodiment of the present invention provides a transmission method, where the method is applicable to a transmitting end, the method includes the steps of: determining a reference time; inserting a time slice signal into a specific frame structure according to a bit attribute of the data to be transmitted and the reference time a time position; transmitting the data after inserting the time slice signal and the time slice signal.
  • the method may further comprise the step of: controlling a state parameter of the time slice signal to represent data according to a bit attribute of the data to be transmitted.
  • the state parameters of the time slice signal include at least one of the following: an insertion time position or a boundary point position, a length of the time slice, and a filling state of the time slice.
  • the method further includes: receiving, by the receiving end, data and time of inserting the time slice signal And detecting a state parameter of the time slice signal; and parsing the data according to the state parameter of the detected time slice signal. If the parsed data is a data sub-block, the method further includes: combining the parsed data sub-blocks into complete data according to a certain timing.
  • a reference time is determined in a data frame or a frame boundary, a time slice signal is inserted into the data frame at a specific time position of the reference time, and then the data frame after the time slice signal is inserted and The time slice signal is sent to the receiving end.
  • the time slice signal can be used for transmission in multiple systems. Interworking information or signaling messages that need to communicate between the same systems.
  • the reference time may be determined according to a frame header or a frame tail of the data frame, or may be determined by the sender and the receiver in synchronization, such as according to a synchronization clock between the sender and the receiver and/or a transmission direction sent by the receiver. Time synchronization.
  • the location in which the time slice is inserted into the data frame includes: a data frame boundary and/or a data frame intermediate.
  • the complete data to be transmitted can be decomposed into multiple data sub-blocks according to the information capacity that each time slice can carry, such as a combination of one bit or at least one bit, and multiple data are
  • the sub-blocks are inserted into the corresponding data frames according to a certain timing; on the receiving side, the information carried by each detected time slice can be combined according to the corresponding timing to restore the complete data.
  • the specific processing flow of the method is as shown in FIG. 3, and includes the following steps:
  • Step 3-1 Configure the time parameter of the time slice used to carry the information, the information carrying mode of the time slice (GAP), and the way of transmitting information (such as the repetition period of the time slice/gap).
  • the devices and/or terminals in at least two systems that need to perform inter-system information interaction are uniformly configured. It is necessary to set the state parameter of the GAP for carrying information, the information represented by the state parameter of the GAP, and the reference time of the GAP.
  • the status parameter of the GAP used to carry the information includes the insertion time position of the relative reference time of the GAP, the time slice length of the GAP, and the filling status in the GAP. (empty/full);
  • the GAP status parameter can also be expressed as the boundary point position of the GAP relative to the reference time point (starting point position, ending point position) and/or the length of the GAP, and the filling status (empty/full) in the GAP.
  • the information carrying mode of the GAP that is, the information represented by the change of the GAP time parameter, the change of the state parameter includes: the change of the GAP starting point position and/or the degree of the position change, or the change of the GAP end point position and/or the position change The degree, or the filling status in GAP (empty/full); if it is a multi-value form, set the relevant parameters for each value.
  • the method of specific setting will be further described below.
  • the configuration requirements of the parameters can ensure that the receiver can pass at least one method.
  • the time parameter of the GAP for carrying information is provided to detect and extract the information carried in the GAP.
  • the settings of the sender and receiver are matched or unified to facilitate information interaction and compatibility.
  • Step 3-2 Decompose the information to be transmitted into information units adapted to each GAP transmission according to the information carried in the GAP and the information carrying capacity of each GAP.
  • each GAP can carry different amounts of information (such as single bit or multiple bits), so it is necessary to decompose the information to be delivered into information units corresponding to the GAP according to the above settings.
  • Step 3-3 According to the GAP information bearer mode set in step 3-1, the information carried in the information unit decomposed in step 3-2 is carried to the corresponding time slice GAP according to the preset timing by the status parameter of the GAP. .
  • Step 3-4 At the receiving end, according to the rule matching the configuration information of the sending end in step 3-1, the state of each GAP is detected and judged, and the information carried in each GAP is extracted.
  • Step 3-5 The information carried in each GAP is combined at the receiving end according to a preset timing corresponding to the sending end, thereby obtaining information that needs to be transmitted.
  • each system can perform information/signaling transmission by using continuous public GAP transmission, and performing collision detection retransmission or timeout retransmission.
  • the periodic GAP is divided into periodic channels, for example, every N GAPs are divided into one cycle, and different GAPs in each cycle are respectively allocated to different systems, and each cycle is allocated to each cycle.
  • the GAPs of the same system are connected in series to obtain the information passed.
  • Embodiments of the present invention provide a method for transmitting information by controlling and detecting the status parameter of the time slice of the transmitted signal. It is therefore necessary to define information for the status parameter representation of the time slice and time slice used to carry the information.
  • Embodiments of the present invention may utilize existing time slices in a data frame or open up a new time slice as a time slice carrying information. For convenience of description, in all embodiments of the present invention we refer to these time slices used to carry information as GAP.
  • the GAP here may be the difference between the burst end time point of the same or different transmitter and the burst start time point; or the difference between the burst end time point and a well known time point; Or the difference between a certain reference time point and the burst start time point.
  • the reference time point may be a time point or boundary within a certain gap, or a pre-defined time point during the signal transmission period without the gap.
  • the time slice includes, but is not limited to, a time slice between uplink and downlink data frames of a Time Division Duplex (TDD) system.
  • TDD Time Division Duplex
  • the time interval between the downlink burst end point in the 802.16 system and the immediately following uplink burst start time point TTG
  • the last uplink burst end time point and the start time of the uplink burst Time interval RTG
  • GAP in TD-SCDMA GAP in TD-SCDMA
  • frequency division duplex (FDD) system added GAP before the frame start position such as frame start position in XDSL system Pre-original or new GAP.
  • FDD frequency division duplex
  • the time slice GAP here can be: a time slice obtained by using or adjusting the existing frame gap (data frame boundary or time slice inside the data frame) of the original system, or opening a new time slice.
  • the length of the GAP can be set according to the length of the frame to balance the information rate and system frame overhead. In a specific area, such as a country area, the GAP reference time point and time length can also be fixed and unified in each system, each frequency band, and each mode.
  • the original frame gap can be used as the GAP, and the boundary of the original frame gap can be appropriately modified.
  • the TTG or RTG of the TDD data frame itself may be used, or the starting time point of the original TTG or RTG may be advanced, or the end time point of the TTG may be pushed back, or the TTG or RTG may be simultaneously Boundary repair Change, as shown in Figure 4-A:
  • the original time slice itself can be used as GAP; in frame N2, the starting boundary of TTG is advanced to form a new GAP; in frame N3, the RTG start boundary is formed in advance.
  • FIG. 4B provides a schematic diagram of the GAP defined relative to the reference time point.
  • the reference time point is defined in frame N1.
  • the GAP is set before the adjacent reference time point.
  • the specific time interval is set before the reference time point.
  • GAP is set after the adjacent reference time point; in frame N5, GAP is set in a specific time interval after the reference time point; in frame N6, GAP is set on both sides of the reference time point.
  • the reference time point can be defined at different specific positions of the original data frame.
  • Figure 4-C provides a schematic diagram of the selection of the reference time point.
  • Frame N1 is a typical TDD data frame
  • frame N2 is a typical FDD downlink data frame.
  • the reference time point (2) can be defined at the start point (1), end point (3) or intermediate setting position of the original time slice; Whether or not a time slice is included in the frame can define a reference time point at a frame start point (4), a frame end point (5), or a frame intermediate position (6) of the original data frame.
  • the GAP defined according to the above principle, as shown in Figure 5, is a schematic diagram of the GAP defined in several typical data frames, including: a typical TDD format downlink (as shown in Figure 5-A), and a typical TDD data frame uplink (Figure 5-B), typical TDD data frames are both uplink and downlink (Figure 5-C), typical FDD data frames (Figure 5-D), typical contention-based TDD data frames (Figure 5-E) .
  • GAP status parameters include but are not limited to: GAP boundary time position (such as starting point and / or ending point) Interval position), or the length of the GAP, or the filling status of the GAP time interval.
  • the transmitter carries the information in the time slice
  • the transmitter needs to carry the information in the transmission signal characteristic of the corresponding time slice, and change the state parameter of the corresponding signal of the time slice timing part by: To carry information: control the difference between the burst end time point and the burst start time point; or the difference between the burst end time point and a well known time point; or a certain reference time point The difference from the burst start time point.
  • a GAP is defined in a GAP or a burst frame using the original time slice as the bearer information.
  • the state parameter of changing the GAP shown in FIG. 6-A is used to carry the information.
  • the frame N1 in the figure is initially defined.
  • the GAP boundary used to carry information, Figure 6-A shows three examples of bearer information: A) In frame N2, the GAP start point is delayed, or the degree of the GAP start point time position is delayed to shorten the GAP.
  • the burst signal bust is inserted, or the length state of the burst signal bust is inserted to shorten the length of the GAP around the reference time to carry information.
  • any combination of the above three methods A), B), and C) may be used to carry information.
  • the two information units are respectively carried by the position states of the start time point of the same GAP and the position state of the end time point by using the methods A) and B) respectively; or the three information units respectively use A), B), C) Three methods are carried by the same GAP start time point position status, end time point position status, and whether a new burst signal is added in the GAP, as shown in Figure 1-B.
  • the way to carry information is similar.
  • the information may be carried in the following manner: A) delaying the end time point of the GAP previous signal transmission, or newly defining a signal transmission interval to occupy the time period; B) starting the signal transmission after the advance GAP The time point, or newly defined one signal transmission interval occupies the time period; C) inserting a signal transmission interval in the GAP to occupy the time period.
  • any combination of A), B), C) can change the signal occupancy state of the time interval associated with GAP.
  • the signal carries the GAP to carry the information, as shown in Figure 11-B.
  • the receiver extracts the information carried in the time slice
  • the receiver needs to extract the information carried in the time slice.
  • the receiving end receives the information containing the bearer
  • the information carried in the GAP is extracted by detecting and judging the state of the GAP.
  • the signal strength in the signal strength decision interval corresponding to the GAP may be detected and judged, or the information carried by the boundary value of the received GAP may be used, or the received information may be used.
  • the length of the GAP is determined by the information it carries.
  • the propagation delay is different, so the signal timing of the receiver (the boundary time of the GAP) has a certain discrepancy with the sender, so the signal is judged.
  • the interval should not directly take the GAP boundary defined by the sender. Instead, a certain timing margin is required in the GAP and signal strength decision intervals. The value of the timing margin needs to be reserved according to the actual system application range. The following three methods will be further described with reference to examples.
  • the information in the GAP is judged based on the signal strength in the signal strength decision interval as shown in Fig. 7-A.
  • the signal decision interval in Figure 8 is the time interval defined by considering the timing margin based on the timing parameters of the signal-bearing GAP.
  • the sender's GAP setting state type is binary
  • the average value of the signal strength in the single gap detected in the signal decision interval (corresponding to the longest idle time received in the GAP) and the maximum value (corresponding to the GAP)
  • a certain intensity value (such as the midpoint of the logarithm) of the received idle time is used as the decision threshold. If the threshold is greater than the threshold, the determination is a full state. If the threshold is less than the threshold, the determination is empty.
  • the information carried (such as bitl/0) ( Figure 7-B).
  • the timing margin of the longest GAP needs to be positive in particular, and there must be no undershoot.
  • the shortest timing margin of the GAP has a relatively small impact on the decision of the signal strength.
  • the signal strength decision interval is used to determine the multi-value GAP detection, and the typical average intensity of the single gap received according to each detected state is obtained.
  • the value, the corresponding decision threshold is selected between the intensity values, and a plurality of decision intervals are divided by the threshold, and the information carried by the intensity value of each GAP is determined according to the interval (for example, 0/1/2/3).
  • decision mode 2 use the GAP start time position value or GAP as shown in FIG.
  • the time length decision signal carries information carried by the GAP.
  • a decision threshold position (such as the average of the two values) is selected in the middle between the earliest possible and the latest possible value of the GAP boundary (the GAP start time point or the end time point), according to The actual received boundary value is determined before and after the decision gate P ⁇ position (eg, bitO/1).
  • the two boundary values of the GAP that is, the start time point and the end time point of the GAP, may jointly carry information or carry respective information, and are matched with the setting manner of the sender.
  • the corresponding sender needs to determine multiple location intervals on the receiver to determine the information carried in the GAP.
  • the information carried by the received GAP is determined by the time length value of the received GAP.
  • a decision threshold (such as the average of the two values) is selected between the longest value and the shortest value set by the GAP, as shown in FIG. 10 with two lengths of GAP.
  • the intermediate value is the decision threshold, and the information carried by the GAT length value (such as bitO/1) is determined according to the length of the received GAP length value.
  • the two boundary values of the GAP that is, the start time point and the end time point of the GAP jointly carry information.
  • the sender GAP carries multiple values, the corresponding sender needs to determine multiple length intervals on the receiver to determine the information carried in the GAP.
  • a signal unit carrying information in an actual system is typically a symbol or chip, abbreviated as a symbol/chip, or a signal unit.
  • Figure 11 shows the graphical representation of the multi-system information transfer mode. It briefly describes the representation of several timings: A) There are consecutive symbols/chips on both sides of the GAP (such as N1 in Figure 11); B) Single The GAP side of the signal unit length has the same continuously transmitted symbol/chip on one side, and the fixed GAP on the other side (N2 or N4 in Figure 11); C) The GAP side of the multi-signal unit length has the same The symbol/chip that is continuously transmitted has a fixed GAP on the other side (N3 or N4 in Figure 11); D) There is a fixed GAP on both sides of the GAP (N5 in Figure 11).
  • the modulation modes of multiple systems when the modulation modes of multiple systems are different, when the actual modulation modes of multiple systems are different, we need to configure the relevant parameters for the GAPs of multiple systems.
  • the configuration requirements of the parameters can ensure that all systems can pass. At least one method detects information carried therein. Below we use specific examples to illustrate the use of various methods to receive requirements for various sender configurations.
  • the sender's GAP boundary is required to pass the propagation delay, and remains with the receiver's decision time setting.
  • each set value and its relative relationship must be consistent with the conditions of the relative decision position according to the conditions of propagation delay and decision accuracy. The requirements required for the judgment.
  • the GAP start position value is used to pass information between the various systems of the hybrid type.
  • the timing analysis varies according to the relative position of the senders on both sides of the GAP. If the senders at both ends of the GAP are the same, the GAP length is independent of the propagation delay. It should be noted that the value of the threshold decision length is taken as an example. In the case of various systems, the length of the GAP change length varies according to the length of the signal unit. It is necessary to ensure the maximum length of the GAP between the systems. The minimum value determined is greater than the maximum value of the minimum length of the GAP between the systems, and sufficient judgment is guaranteed.
  • the critical decision length value is selected in the middle of each system (the maximum value of the shortest length setting of the GAP and the minimum value set by the longest length of the GAP). For example, if the three GAP setting lengths of the three systems are (200us, 100us) (200us, 50us) (180us, 75us), then the decision length value should be selected between (180us, lOOus), for example, 140us.
  • Figure 11-D shows another example of using GAP length settings and decisions to pass information between systems of a hybrid type.
  • the length judgment GAP carries information
  • the transmission setting and the decision length value setting method in the case where both sides of the GAP are set to change are similar.
  • Figure 11-E shows a schematic diagram of the transfer of information between systems of a hybrid type using signal GAP start point settings and signal strength detection decisions.
  • the signaling decision interval does not coincide with the range of the signal-bearing GAP, and the signaling decision interval needs to be set according to the sensitivity of the signal.
  • the GAP end time points of the three hybrid types of systems are unified at 200us, at the beginning.
  • the inter-points are binary settings (0, 100) (0, 150) (12.5, 125), and the propagation delay is assumed to be between lus and 10 us, regardless of the precision margin.
  • the interval that can be set is different.
  • the optimal signaling decision interval scheme is selected according to the actual situation. .
  • the signaling decision interval of each system is set to (0us, 200us) (50us, 150us) (25us, 150us), and the information carried in the GAP is judged with high sensitivity as normal.
  • the radio access communication systems A, B, and C shown in FIG. 12 each have their base station and subordinate terminals, and the terminals of the signal overlap portions between adjacent systems can receive the signaling from the base stations of the adjacent systems by the above method.
  • the use of these signaling messages and related mechanisms can complete inter-system interference measurement and identification, interference prevention and resolution, air interface resource allocation and resource dynamic negotiation allocation management, power negotiation, network automatic planning, status information interaction, neighbor station discovery, Traffic distribution negotiation, terminal-to-mode switching, terminal multi-mode switching, and other data for small data volumes, messaging, and so on.
  • the wired PMP access system (copper/copper cable, such as cable, PLC/BPL; optical, such as xPON, etc.) A, B, and C in Figure 13 each have its base station and its subordinate terminals.
  • the terminal of the common arriving part of the signal between the adjacent systems may receive the signaling message from the base station of the neighboring system by the above method, wherein the terminal of the common arriving part of the signal between the adjacent systems may also send the base station to the base station of the adjacent system by using the above method. Signaling message.
  • the use of these signaling and related mechanisms can complete inter-system interference measurement and identification, interference prevention and resolution, resource allocation and resource dynamic negotiation allocation management, power negotiation, network automatic planning, status information interaction, neighbor discovery, traffic distribution Negotiation, terminal-mode-home switching, terminal multi-mode switching, and other data for small data volumes, messaging, and so on.
  • the wired access system (such as xDSL) A", B", C" each has its base station and its subordinate terminals. Although there is no wired connection between adjacent systems, its signal leakage causes mutual interference, each system Uplink and downlink synchronization, so the base stations of each system will crosstalk to the terminals of other systems, and the terminals in each system will also crosstalk to the base stations of other systems.
  • the above methods can be used to move from the base stations of each system to the terminals or adjacent systems of the adjacent systems.
  • the terminals of each system send signaling to the base stations of the adjacent systems.
  • FIG. 15 shows an example in which a part of the signaling bearer GAP in each system periodically sends a signaling to the neighboring system.
  • FIG. 16 is a diagram showing an actual sequence of signaling for each system to send signaling to a neighboring system by using the above method.
  • the specific steps of the GAP bearer information in multiple cycles are further described below with reference to FIG. 16.
  • system A sends 100 to the neighboring system B/C
  • system B sends 110 to the neighboring system A/C
  • system C sends 101 to the neighboring system A/B.
  • the full state represents 1, and the empty state represents zero.
  • system A sets the GAP status to full, empty, and empty in its signaling bearer GAP, and the B and C systems are all set to null in the same GAP position;
  • System B is in its signaling bearer GAP. Set the GAP status to full, full, and empty.
  • the A and C systems are all set to null in the same GAP location.
  • System C sets the GAP status to full, empty, and full in its signaling bearer GAP.
  • the A and B systems are in the same state.
  • the GAP location is set to null. In this way, each system can smoothly send signaling to its neighboring systems.
  • FIG. 17 is another application example in a wireless environment, indicating that a system can also use GAP to transmit signaling information to neighboring systems without normal service data transmission and reception. It is assumed that there are still three systems, in which system VIII and B have data transmission and reception parts of normal services, and the state of system C has no normal service transmission and reception near GAP.
  • FIG. 18 is another application example in a wired environment, indicating that a system can also use GAP to transmit signaling information to neighboring systems without normal service data transmission and reception. It is assumed that there are still three systems, in which system A, B, has the data transmission and reception part of the normal service, and the state of system C has no normal service transmission and reception near the GAP.
  • the signaling is sent to the adjacent system in multiple cycles.
  • the system C uses its GAP information bearer mode, and its full state will specifically send several signal units within the GAP time interval, while other receivers can pass the GAP start position change before the end point of the original GAP or The GAP length or the signal strength within the signal decision interval determines the information within the GAP.
  • Figure 20 depicts the specific steps of GAP bearer signaling in multiple cycles. Assume that system A sends 100 to the neighboring system B/C, system B sends 110 to the neighboring system A/C, and system C sends 101 to the neighboring system A/B.
  • system A sets the GAP status to full, empty, and empty in its signaling bearer GAP, and the B and C systems are all set to null in the same GAP position; System B is in its signaling bearer GAP. Set the GAP status to full, full, and empty. The A and C systems are all set to null in the same GAP location. System C sets the GAP status to full, empty, and full in its signaling bearer GAP. The A and B systems are in the same state. The GAP location is set to null. In this way, each system can smoothly send signaling to its neighboring systems. Note that at this time, the empty state of system C is not signaled at the signaling bearer GAP and both ends, and the full state transmits a special number of signaling signal units with part of the time interval within the GAP boundary.
  • an embodiment of the present invention further provides a transmitter, including: a time device, a time slice generating device, and a transmitting device.
  • the time device is configured to determine a reference time;
  • the time slice generating device is configured to insert a time slice signal into a specific time position of the data frame according to the bit attribute of the data to be transmitted and the reference time;
  • a sending device configured to send the data frame after inserting the time slice signal and the time slice signal.
  • the transmitter may further include: a time slice parameter control device, configured to control a state parameter of the time slice signal in the time slice generating device according to a bit attribute of the data to be transmitted to represent the data.
  • a time slice parameter control device configured to control a state parameter of the time slice signal in the time slice generating device according to a bit attribute of the data to be transmitted to represent the data.
  • the transmitter may further include: a time slice parameter control device and a blocking device, wherein the functions and functions of the time slice parameter control device are as described above, and the blocking device is configured to decompose data to be transmitted A plurality of data sub-blocks to be transmitted are input, and each data sub-block to be transmitted is input to the time slice generating device.
  • a time slice parameter control device and a blocking device, wherein the functions and functions of the time slice parameter control device are as described above, and the blocking device is configured to decompose data to be transmitted A plurality of data sub-blocks to be transmitted are input, and each data sub-block to be transmitted is input to the time slice generating device.
  • an embodiment of the present invention further provides a receiver, where the receiver includes: a first time device, a time slice detecting device, and a determining device.
  • the first time device is configured to determine the same reference time as the transmitter;
  • the time slice detecting device is configured to receive the data frame of the inserted time slice signal and the time slice signal sent by the transmitter, And detecting the state parameter of the time slice signal;
  • the determining device configured to parse the data frame according to the state parameter of the detected time slice signal, to obtain the transmitted data.
  • the receiver further includes a combination
  • the data sub-blocks used for parsing the decision device are combined into complete data at a certain timing.
  • the implementation process of the functions and functions of the respective devices in the transmitter and the receiver is described in detail in the implementation process of the corresponding steps in the above method or application embodiment, and is not mentioned here.
  • an embodiment of the present invention further provides a transmission system, where the system includes at least: an emitter and a receiver.
  • the transmitter is configured to determine a reference time, insert a time slice signal into the data frame according to the reference time, and send a data frame and a time slice signal after inserting the time slice signal;
  • the receiver is configured to determine and a reference time corresponding to the transmitter, and after receiving the data frame and the time slice signal, detecting a state parameter of the time slice signal, and parsing the data frame according to the state parameter.
  • the transmitter includes: a time device, a time slice generating device, and a transmitting device, and further includes: a time slice parameter control device, or a time slice parameter control device and a blocking device.
  • a time slice parameter control device or a time slice parameter control device and a blocking device.
  • the receiver includes: a first time device, a time slice detecting device, and a decision device. Further, it may include: a combination device.
  • a first time device a time slice detecting device
  • a decision device a time slice detecting device
  • the data and the data frame may have the same meaning in some application environments.

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Description

传输方法、 系统、 发射机、 接收机及实现信息传递的方法 本申请要求于 2006 年 12 月 20 日提交中国专利局、 申请号为 200610157986.9、 发明名称为 "一种通讯系统间传输信息的方法和系统"的中国 专利申请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域, 特别涉及一种传输方法、 传输系统、 发射机、 接收 机及实现信息传递的方法。
背景技术
不同技术的系统之间的信息传递,或终端在不同模式的接入点或基站间的 信息通信, 一直是一个技术难题。
如图 1所示的系统 A和系统 B为无线通信接入系统, 所述系统 A和系统 B中分别包括: 终端( Subscriber Station, SS)和基站( base station, BS ); 系统 A中包括: SSA1、 SSAS和 BSA; 系统 B中包括: SSB1、 SSB2、 SSB3和 BSB。 其 中所述系统 A和系统 B 可以为下述系统之一: 时分双工-码分多址(Time Division Duplex - code division multiple access, TDD-CDMA ),通用陆地无线 接入 -时分双工 ( Universal Terrestrial Radio Access - Time Division Duplex, UTRA-TDD ), 时分双工-宽带码分多址 ( Time Division Duplex - Synchronous code division multiple access , TDD-SCDMA ), 第三代移动通信 ( The third Generation Mobile Telecommunication, 3G ), 全球 波接入互操作性(World Interoperability for Microwave Access , WiMAX ), 无线宽带接入 ( Wireless Broadband Access Service , WiBro ) , 无线高速免许可城域网 ( Wireless High-speed Unlicensed Metropolitan Area Network, WirelessHuman ), 无线保 真( Wireless Fidelity , WiFi ),高性能无线局域网( High Performance Radio Local Area Network , HiperLAN ) , 高性能无线城域网 (High Performance Radio Metropolitan Area Network , HiperMAN ) , 无线接入网络 ( Radio Access Network , RAN ),无线城域网 ( Wireless Metropolitan Area Network, WMAN ), 无线局域网 (Wireless Local Area Network , WLAN ), 移动宽带无线接入系统 ( Mobile Broadband Wireless Access , MBWA ),超第三代移动通信( Beyond the third Generation Mobile Telecommunication, B3G )以及其他及后续演进的无线 通信接入系统等。
图 2所示的系统 C和系统 D为有线通信接入系统(例如铜线接入 {Cable、 PLC, 08 等}、 光接入系统 {如XPON等}, 以及后续其他使用共享介质作为 媒体的点到多点 (PMP )或多点到多点 (MESH ) 的有线接入技术)。
如图 1及图 2所示的接入系统之间, 在很多情况下需要交互信息, 如: 为 消除和减轻系统间的干扰, 需要协商具体参数; 终端在不同种类的系统间进行 切换时, 需要控制信息的交互等。
由此可见, 无论是有线还是无线接入系统,在很多情况下都需要知道与其 相互影响的相邻接入系统的信息,目前的技术方案主要是采用各自网络连接到 公网上, 通过上层信息交互来实现, 而不能直接通过底层的网络直接联通, 特 别是在不同的网路类型之间 , 更是无法直接沟通来获知对应的信息。
发明内容
有鉴于此, 本发明实施例提供一种传输方法、 系统、 发射机、 接收机及实 现信息传递的方法,以解决多系统或混合类型的网络中数据传输过程中的信令 交互的问题。
为解决上述技术问题, 本发明实施例提供一种传输系统, 至少包括发射机 和接收机, 其中,
所述发射机, 用于确定基准时间,根据所述基准时间将时间片信号插入到 数据帧中, 并发送所述数据帧及时间片信号;
所述接收机, 用于确定发射机对应的基准时间, 并在接收到所述数据帧和 所述时间片信号后,检测所述时间片信号的状态参数,根据所述状态参数解析 数据帧。
本发明实施例还提供一种发射机, 包括:
时间装置, 用于确定基准时间;
时间片发生装置, 用于根据待传送数据的比特属性及所述基准时间, 将时 间片信号插入到数据帧的特定时间位置;
发送装置, 用于发送所述插入时间片信号后的数据帧和所述时间片信号。 本发明实施例还提供一种接收机, 包括:
第一时间装置, 用于确定与发射机对应的基准时间; 时间片检测装置,用于接收发射机发送的所述插入时间片信号的数据帧和 所述时间片信号, 并检测所述时间片信号的状态参数;
判决装置, 用于根据所述检测到的时间片信号的状态参数解析所述数据 帧。
本发明提还供了一种传输方法, 包括:
确定基准时间;
根据待传送数据的比特属性及所述基准时间,将时间片信号插入到数据帧 的特定时间位置;
发送所述插入时间片信号后的数据帧及所述时间片信号。
本发明还提供了一种实现信息传递的方法, 包括:
发送方根据待发送的信息单位, 设定特定时间段内信号发送时间参数; 接收方在确定的特定时间段内根据接收信号的特性接收所述信息单位。 由上述技术方案可见,本发明实施例中,接收方可以不考虑接收到的信号 的调制方式、调制频率和编码方式, 且对各系统设备同步、传播时延的要求也 不严格。通过本发明实施例可以在多系统间互通信令或信息, 以解决多系统或 混合类型的网络中共存协商及多模终端的快速切换等过程中的信令交互的难 题。此外,本发明实施例还可以推动现在和未来各类无线网络之间及使用同种 共享介质的有线网络之间的网络优化及融合。
附图说明
图 1为背景技术中无线相邻系统示意图;
图 2为背景技术中有线相邻系统示意图;
图 3为本发明实施例利用 GAP传递信息方法流程图;
图 4-A为本发明实施例 TDD数据帧中的信号承载间隙示例;
图 4-B为本发明实施例相对基准时间点定义信号承载间隙示例; 图 4-C为本发明实施例基准时间点选取示例;
图 5-A为本发明实施例的 TDD数据帧下行帧中的信号承载间隙示例; 图 5-B为本发明实施例的 TDD数据帧上行帧中的信号承载间隙示例; 图 5-C为本发明实施例的 TDD数据帧上下行帧中的信号承载间隙示例; 图 5-D为本发明实施例的 FDD数据帧上行帧中的信号承载间隙示例; 图 5-E为本发明实施例基于竟争的 TDD数据帧中的信号承载间隙示例; 图 6-A为本发明实施例改变 GAP的状态以承载信息示例;
图 6-B为本发明实施例改变 GAP的状态的等效方式以承载信息示例; 图 7-A为本发明实施例针对信号强度判决区间内的信号强度判决信号承 载 GAP内的信息示例;
图 7-B为本发明实施例利用信号强度判决区间对空满二值 GAP检测示意 图;
图 7-C为本发明实施例利用信号强度判决区间对多值 GAP检测判定示意 图;
图 8为本发明实施例用 GAP起点位置值或 GAP长度判定信号承载 GAP 携带的信息;
图 9为本发明实施例用 GAP长度判定信号承载 GAP携带的信息; 图 10为本发明实施例多系统间信息传递方式绘图图例;
图 11-A为本发明实施例用 GAP起始位置值在混合类型的各系统间传递信 息;
图 11-B为本发明实施例中利用 GAP起始位置值在混合类型的各系统间传 递信息;
图 11-C为本发明实施例中利用 GAP长度设定和判决在混合类型的各系统 间传递信息;
图 11-D为本发明实施例中利用 GAP长度设定和判决在混合类型的各系统 间传递信息;
图 11-E为本发明实施例中利用信号 GAP起始点设定和信号强度检测判决 在混合类型的各系统间传递信息;
图 12为本发明实施例中无线相邻系统中的应用示例图;
图 13为本发明实施例中有线相邻系统中的应用示例图;
图 14为本发明实施例中有线相邻系统中的应用实例图;
图 15为本发明实施例中各系统分别占用循环周期内信令承载 GAP向相邻 系统发送信令示例;
图 16为本发明实施例中各系统分别发送信令给相邻系统实际示例图; 图 17为本发明实施例中无线相邻系统中的应用示例图;
图 18为本发明实施例中有线相邻系统中的应用示例图;
图 19为本发明实施例中 GAP附近无数据收发的系统利用信令承载 GAP 发送信令示例;
图 20为本发明实施例中 GAP附近无数据收发的系统利用信令承载 GAP 发送信令示例。
具体实施方式
本发明实施例提供在共享媒体资源的多系统间传递信息的方法,其实现的 过程为: 在发送方, 利用特定时间位置, 和 /或在时间区间内发送功率或强度 的可变状态特性来承载信息; 在接收方, 利用特定时间位置, 和 /或在时间区 间检测到的功率或强度变化的状态特性来解析接收到的所述信息。 该状态特 性, 可以为功率或强度的有和无, 也可以为功率或强度具体值的变化。 利用该 方法,接收方在接收到发送方发送的信息后, 只要在确定的时间位置检测到信 号功率或强度的有无,或检测接收到的信号功率不同于帧定时中正常数据对应 部分的接收信号功率或强度的时间区间, 就可以将数据解析出来。 因此, 接收 方可以不考虑接收到的信号的调制方式、调制频率和编码方式, 以及对各系统 设备同步、传播时延的要求也可以不严格要求。 由此可见, 利用本发明实施例 的方法可以在多系统间互通信令或信息,来解决多系统或混合类型的网络中共 存协商及多模终端的快速切换等过程中的信令交互的难题,此外,也可以推动 现有和未来各类无线网络之间及使用同种共享介质的有线网络之间的网络优 化及融合。
本发明实施例提供一种传输方法, 该方法适用于发送端, 所述方法包括步 骤: 确定基准时间; 根据待传送数据的比特属性及所述基准时间, 将时间片信 号插入到帧结构的特定时间位置;发送所述插入时间片信号后的数据及所述时 间片信号。
优选的, 所述方法还可以包括步骤: 根据待传送数据的比特属性, 控制所 述时间片信号的状态参数以表示数据。所述时间片信号的状态参数至少包括下 述一种: 插入时间位置或边界点位置, 时间片的长度和时间片的填充状态。
优选的, 所述方法还包括: 接收端在接收到插入时间片信号的数据及时间 片信号时,检测所述时间片信号的状态参数;根据所述检测到时间片信号的状 态参数解析所述数据。如果解析出的所述数据为数据子块,进一步还可以包括: 将所述解析出数据子块按一定的时序组合成完整的数据。
具体地, 在传输系统中, 在数据帧中或帧边界确定一个基准时间, 在基准 时间的特定时间位置将时间片信号插入到数据帧中,然后将所述插入时间片信 号后的数据帧及所述时间片信号发送到接收端。其中,通过改变时间片内信号 的强度值和 /或时间片的参数, 如插入时间片的时间位置和 /或时间片的时间长 度来表示信息,该时间片信号可以用来传输需要在多系统间互通的信息或需要 在相同系统间互通的信令消息。
该基准时间可以根据数据帧的帧头或帧尾来确定,也可以通过发送方和接 收方同步确定基准时间, 如才 据发送方和接收方之间的同步时钟和 /或发送方 向接收方发送的时间同步。
该时间片插入数据帧中的位置包括: 数据帧边界和 /或数据帧中间。
考虑到每一个时间片承载的信息有限,可以将完整的待传送数据根据每一 个时间片能够承载的信息容量,如一比特或至少一比特的组合,分解成多个数 据子块, 将多个数据子块按照一定的时序插入到相应的数据帧中; 在接收方, 可以将各个检测到的时间片承载的信息按照相应的时序组合起来,还原完整的 数据。
为使本发明实施例的目的、技术手段和优点更加清楚明白, 以下通过具体 的实施方式, 并结合附图对本发明进行说明, 以下仅为本发明的实施例, 并非 限定本发明实质精神。
根据上述在至少两个系统间传输信息的方法,该方法的具体处理流程如图 3所示, 包括如下步骤:
步骤 3-1 : 配置用来承载信息的时间片的时间参数、 时间片 (GAP )的信 息承载方式, 及传递信息方式(如时间片 /间隙的重复周期)。
首先, 对需要进行系统间信息交互的至少两个系统中的设备和 /或终端进 行统一配置。 需要设定用来承载信息的 GAP的状态参数、 GAP的状态参数表 示的信息和 GAP的基准时间。 其中, 用来承载信息的 GAP的状态参数包括 GAP的相对基准时间的插入时间位置, GAP的时间片长度, GAP中填充状态 (空 /满); GAP的状态参数也可表示为 GAP相对基准时间点的边界点位置(起 始点位置、 结束点位置)和 /或 GAP的时间长度, GAP中填充状态(空 /满)。 如果是多值形式还要设定每个值的相关参数。该 GAP的信息承载方式,即 GAP 时间参数的变化表示的信息, 该状态参数的变化包括: GAP起始点位置的变 化和 /或位置变化的程度,或 GAP结束点位置的变化和 /或位置变化的程度,或 GAP中填充状态(空 /满); 如果是多值形式还要设定每种取值的相关参数。 具 体设定的方法在下文将进一步描述。
在具体实现中 , 参数的配置要求能够保证接收方可以通过至少一种方法
(如上述提供的用来承载信息的 GAP的时间参数、 GAP的信息承载方式, 及 传递信息方式三种检测判决方法)检测提取出 GAP中携带的信息。 例如, 发 送端和接收端的设置匹配或统一以便于信息交互、 兼容。
步骤 3-2: 根据所述 GAP中携带的信息及每个 GAP的信息承载容量, 将 需要传递的信息分解成适应每个 GAP传输的信息单元。
根据步骤 3-1 的设置, 每个 GAP可以承载的信息量不同 (如单 bit或多 bits ), 因此需要根据上述设置将需要传递的信息分解成与 GAP相应容量的信 息单元。
步骤 3-3: 按照步骤 3-1设置的 GAP信息承载方式, 通过 GAP的状态参 数将步骤 3-2中分解得到的信息单元携带的信息按预先设定的时序承载到相应 的时间片 GAP中。
步骤 3-4: 在接收端, 按照与步骤 3-1 中发送端配置信息相匹配的规则, 检测并判断每一个 GAP的状态, 并提取出每一个 GAP中承载的信息。
步骤 3-5:在接收端按照与发送端相应的预设时序将每一个 GAP中承载的 信息组合起来, 从而获得需要传递的信息。
在多系统的情况时, 我们可以利用上述方法在特定区域(如国家区域) 内 在帧结构中定义统一的 GAP, 并利用这些共知的 GAP相互传递信息。 为防止 或解决潜在的冲突问题, 各系统间可以通过利用连续的公共的 GAP发送, 并 进行冲突检测重发的方式或超时重发的方式进行信息 /信令传递。 或者将周期 性的 GAP划分成周期性的若干通道, 比如每 N个 GAP划分为一个周期, 而 每个周期内不同的 GAP分别分配给不同的系统独占 , 并把各个周期内分配给 相同系统的 GAP串联起来从而获得传递的信息。
下面, 我们举例说明上述各步骤中 GAP的设定、 承载和检测方式。
(一 ) 配置用于承载信息的时间片和时间片的状态参数表示的信息; 本发明实施例提供一种通过控制和检测发送信号的时间片的状态参数传 递信息的方法。因此需要定义用于承载信息的时间片和时间片的状态参数表示 的信息。
( 1 )定义用于承载信息的时间片。 本发明实施例可以利用数据帧中已有 时间片或开辟新的时间片作为承载信息的时间片。 为了描述方便,在本发明的 所有实施例中我们将这些用来承载信息的时间片称为 GAP。
这里的 GAP可以为相同或不同的发射机的突发结束时间点与突发起始时 间点的差值; 或突发结束时间点与某一设定(well known ) 时间点间的差值; 或某一个基准时间点与突发开始时间点之间的差值。该基准时间点可以是原先 某个间隙内的一个时间点或边界,或者原先没有间隙的信号发送期间的一个预 先定义的时间点。 该时间片包括但不限于时分双工 (Time Division Duplex, TDD ) 系统的上下行数据帧间的时间片。 例如 802.16 系统中的下行突发结束 时间点与紧跟的上行突发开始时间点的时间间隔 ( Transmit/receive transition gap, TTG )或最后一个上行突发结束时间点与上行突发开始的时间点的时间 间隔(receive/transmit transition gap, RTG ); TD-SCDMA 中的 GAP; 频分双 工 (Frequency Division Duplex, FDD ) 系统帧起始位置前新增的 GAP, 例如 XDSL 系统中帧起始位置前原有或新增的 GAP等。
这里的时间片 GAP可以是: 利用或调整原系统已有的帧间隙 (数据帧边 界或数据帧内部的时间片) 而获取的时间片, 也可以是开辟新的时间片。 该 GAP 的时间长度可以根据帧的时间长度进行设置, 以实现信息速率和系统帧 开销的平衡。 在特定区域如国家区域内, 也可以将该 GAP的基准时间点和时 间长度在各系统、 各频段、 各模式进行固定和统一。
当原来的数据帧中本身有时间片时, 可以利用原有的帧间隙作为 GAP, 也可以对原有的帧间隙的边界进行适当修改。 以典型的 TDD数据帧为例, 可 以采用 TDD数据帧中本身的 TTG或 RTG,或将原 TTG或 RTG的起始时间点 提前, 或将 TTG的结束时间点推后, 或者同时对 TTG或 RTG的边界进行修 改,如图 4-A所示:帧 N1中,原时间片本身可以作为 GAP; 帧 N2中,将 TTG 的起始边界提前形成一个新的 GAP; 帧 N3中, 将 RTG起始边界提前形成一 个新的 GAP; 帧 N4中, 将 TTG结束边界延迟形成一个新的 GAP; 帧 N5中, 将 TTG的起始边界提前同时将 TTG的结束边界延迟形成一个新的 GAP; 帧 N6 中, 将 TTG的起始边界提前同时将 RTG的结束边界提前形成两个新的 GAP。
当原来的数据帧中没有时间片时(如 FDD下行帧), 或原来的时间片不适 合用来承载信息时(如针对 802.11的帧之间本来变化的时间片), 可以先设定 一个基准时间点, 在该基准时间点参照下开辟一些 GAP。 GAP可以设置在邻 接基准时间点前面,也可以设置在邻接基准时间点后面,或在相对基准时间点 的特定偏移位置上的时间区间内。 图 4-B提供了相对基准时间点定义的 GAP 示意图,帧 N1中定义了基准时间点;帧 N2中,在邻接基准时间点前设置 GAP; 帧 N3中, 在基准时间点前特定时间区间设置 GAP; 帧 N4中, 在邻接基准时 间点后设置 GAP; 帧 N5中, 在基准时间点后特定时间区间设置 GAP; 帧 N6 中, 在基准时间点两侧设置 GAP。
其中, 基准时间点可以定义在原数据帧的不同特定位置。 图 4-C提供了基 准时间点选取示意图, 帧 N1为典型的 TDD数据帧, 帧 N2为典型的 FDD下 行数据帧。 又如图 4-C所示, 当原数据帧有时间片时, 可以在原时间片的起始 点 (1 )、 结束点 (3 )或中间设定位置定义基准时间点 (2 ); 无论原数据帧中 是否包含时间片, 都可以在原数据帧的帧起始点(4 )、 帧结束点(5 )、 或帧中 间设定位置 (6 )定义基准时间点。
按照上述原则定义的 GAP, 如图 5所示为在几种典型的数据帧中定义的 GAP示意图, 包括: 典型的 TDD格式下行(如图 5-A ), 典型的 TDD数据帧 上行(如图 5-B ), 典型的 TDD数据帧上下行同时 (如图 5-C ), 典型的 FDD 数据帧 (如图 5-D ), 典型的基于竟争的 TDD数据帧 (如图 5-E )。
( 2 )定义时间片的状态参数表示的信息。
为了在 GAP中承载信息,需要对该 GAP的状态参数进行定义以表示携带 的信息, 这样, 不同的信息就可以用不同状态的 GAP传递出去。 其中, GAP 的状态参数包括但不仅限于: GAP的边界时间位置 (如起始点和 /或结束点时 间位置), 或 GAP的时间长度 , 或 GAP时间区间的填充状态。
(二)发射机将信息承载于时间片中;
根据如上定义的用于承载信息的时间片定时和时间片的状态参数,发射机 需要将信息承载于对应时间片的发送信号特性中 ,并通过如下方式来改变时间 片定时部分对应信号的状态参数, 以承载信息: 控制突发结束时间点与突发起 始时间点的差值; 或突发结束时间点与某一设定(well known ) 时间点间的差 值; 或某一个基准时间点与突发开始时间点之间的差值。
以利用原有时间片作为承载信息的 GAP或突发帧中定义了 GAP为例,参 见图 6-A所示的改变 GAP的状态参数以承载信息示意图, 图中帧 N1所示为 初始定义的用来承载信息的 GAP边界, 图 6-A中显示了三种承载信息方式的 例子: A ) 帧 N2中, 通过是否延迟 GAP起始点, 或延迟 GAP的起始点时间 位置的程度状态以缩短 GAP的长度来承载信息; B )帧 N3中, 通过是否提前 GAP结束点, 或提前 GAP的结束点时间位置的程度状态以缩短 GAP的长度 来承载信息; C )帧 N4中, 通过是否在 GAP中插入突发信号 bust, 或插入突 发信号 bust的长度状态以缩短基准时间周围 GAP的长度来承载信息。 此外, 还可以采用上述 A )、 B )、 C )三种方式的任意组合来承载信息。 例如将两个 信息单元分别利用 A )、 B )方法, 用同一个 GAP的起始时间点的位置状态和 结束时间点的位置状态承载; 或者将三个信息单元分别利用 A )、 B )、 C )三 种方法, 用同一个 GAP的起始时间点位置状态、 结束时间点位置状态和 GAP 内是否加入新的突发信号的状态来承载, 如图 11-B所示。
同样的, 对于 GAP是对原有时间片修改或重新定义的情况, 承载信息的 方式类似。参见图 6-B所示的例子,可以通过如下方式承载信息 A )延迟 GAP 前面信号发送的结束时间点, 或新定义一个信号发送区间占用该时间段; B ) 提前 GAP后面信号发送的起始时间点, 或新定义一个信号发送区间占用该时 间段; C )在 GAP中插入信号发送区间来占用该时间段。 或者以 A )、 B )、 C ) 三种方式的任意组合来改变与 GAP相关的时间区间的信号占用状态。 以此利 用信号承载 GAP来承载信息, 参考图 11-B所示。
(三)接收机将承载于时间片中的信息提取出来;
根据如上定义的用于承载信息的时间片 GAP和时间片 GAP的状态参数, 接收机需要将承载于时间片中的信息提取出来。接收端收到包含承载了信息的
GAP的信号帧后, 通过检测并判断该 GAP的状态把承载在 GAP中的信息提 取出来。
为了判决 GAP的状态参数,可以对 GAP对应的信号强度判决区间内的信 号强度检测并判断所承载的信息, 也可以利用对接收到的 GAP的边界值的判 定其携带的信息, 或利用对接收到的 GAP的长度值的判定其携带的信息。
由于系统间不同设备相互间距离的区别和 /或多径、 反射的影响, 导致传 播延时不同, 所以接收方的信号时序 (GAP 的边界时间)与发送方有一定的 出入, 所以信号判决的区间不宜直接取发送方定义的 GAP边界。 而是需要在 GAP和信号强度判决区间留有一定的时序裕量, 时序裕量的值需要根据实际 系统应用范围预留。 下面结合实例对三种方式进一步说明。
( 1 )、在判决方式 1中, 如图 7-A所示的根据信号强度判决区间内的信号 强度判决 GAP内的信息。图 8中的信号判决区间是根据信号承载 GAP的时序 参数考虑时序裕量后定义的时间区间。
当发送方的 GAP设置状态种类为二值时, 在该信号判决区间内检测到的 信号强度单间隙内平均的最小值(对应 GAP内接收到的空闲时间最长时)和 最大值(对应 GAP内接收到的空闲时间最短时)之间的某个强度值(如对数 中点)作为判决门限, 大于该门限的判定为满状态, 小于该门限的则判定为空 状态, 各自对应一种所携带的信息(如 bitl/0 ) (如图 7-B )。 由于信号强度一 般采用对数计数,将信号强度范围的最小值减到最小(需保证所有接收时序有 裕量, 此时信号检测强度仅含背景噪声时)将有助于提高灵敏度, 为此尤其 GAP最长时的时序裕量尤其需要为正值, 不能有欠量。 GAP最短时的时序裕 量对信号强度的判决结果影响相对较小。
当发送方的 GAP设置状态种类为多值时, 如图 7-C所示的利用信号强度 判决区间对多值 GAP检测判定示意图, 根据检测到的每种状态接收到的单间 隙内部典型平均强度值,在各强度值之间选取对应的判决门限, 以此门限划分 多个判决区间, 根据每个 GAP内部实测的强度值所属区间判定其携带的信息 (如 0/1/2/3 )。
( 2 )、 在判决方式 2中, 如图 9所示的利用 GAP起点时间位置值或 GAP 时间长度判定信号承载 GAP携带的信息。
如针对发送方的二值设定, 在 GAP边界 ( GAP起始时间点或结束时间 点 )最早可能和最迟可能值之间的中间选取一个判决门限位置(如两值的平均 值 ), 根据实际每次接收到的边界值相对该判决门 P艮位置的前后判定其携带的 信息(如 bitO/1 )。 此方法中 GAP的两个边界值, 即 GAP的起始时间点和结束 时间点可以联合携带信息或分别携带各自的信息, 与发送方的设置方式配套。
类似的, 如果发送方 GAP携带的是多值, 如图 11-B所示, 需要对应发送 方在接收方确定多个位置区间, 用来判定 GAP中携带的信息。
( 3 )、 在判决方式 3中, 如图 9或图 10所示, 利用对接收到的 GAP的时 间长度值判定其携带的信息。
如针对发送方的二值设定, 在 GAP设定的最长值和最短值之间的中间选 取一个判决门限(如两值的平均值), 如图 10所示以 GAP的两种长度的中间 值为判决门限, 根据实际每次接收到的 GAP长度值相对该判决门限的长短判 定其携带的信息(如 bitO/1 )。 此方法中 GAP的两个边界值, 即 GAP的起始时 间点和结束时间点联合携带信息。
类似的, 如果发送方 GAP携带的是多值, 需要对应发送方在接收方确定 多个长度区间, 用来判定 GAP中携带的信息。
下面结合实际应用场景对本实施例提供的方法做进一步说明。
(―) 系统配置
例如, 在实际系统中携带信息的信号单元通常为符号或码片, 简称符号 / 码片, 或信号单元。 图 11给出的多系统间信息传递方式绘图图例, 简要说明 几种时序的表示方法: A) GAP两侧有紧接的持续发送的符号 /码片 (如图 11 中 N1 ); B)单信号单元长度的 GAP单侧有紧接的持续发送的符号 /码片 , 另 一侧有固定的 GAP (如图 11中 N2或 N4 ); C ) 多信号单元长度的 GAP单侧 有紧接的持续发送的符号 /码片,另一侧有固定的 GAP (如图 11中 N3或 N4 ); D ) GAP两侧都有固定的 GAP (如图 11中 N5 )。
以多个系统间调制方式不同为例, 当实际的多个系统间的调制方式不同 时, 我们需要为多个系统的 GAP各自配置相关的参数, 参数的配置要求能够 保证所有各系统都能够通过至少一种的方法检测出其中携带的信息。 下面我们通过具体的例子来说明使用各种方法接收对各种发送方配置的 要求。
如图 11-A, 当接收方都采用 GAP边界点(例如起始时间点)的位置来判 定 GAP携带的信息时,要求发送方的 GAP边界经过传播延时,仍然保持与接 收方判决时间设置点的相对前后关系。 以 GAP起始时间点为例, 假设各系统 设备同步且传播延时最大为 10us, 最小为 0.5us, 判决精度裕量 10us, 则要求 每种系统发送时设置的 GAP起始时间点最小值相对判决时间点之前要预留大 于 10+10=20us的裕量,设置的 GAP起始时间点最大值要相对判决时间点之后 ( - 0.5 + 10) =9.5 us。
类似的, 如果发送方的 GAP采用多值设定(图 11-B ), 其每种设定值及 其相对关系一样要符合相对各判决位置时间点根据传播时延和判决精度的条 件做正确判决所需的要求。 如图 11-B, (多值情况下)利用 GAP起始位置值在 混合类型的各系统间传递信息。
当采用 GAP长度判断其携带的信息时(图 11-C ), 时序分析根据 GAP两 侧的发送方相对位置不同而异,假设 GAP两端的发送方相同, 则 GAP长度则 与传播时延无关。 需要注意的是门限判决长度的取值, 以二值设定 /判定为例, 当各种系统由于信号单位长度的不同, 其 GAP变化长度范围也不同, 需要保 证各系统间 GAP最长长度设定的最小值大于各系统间 GAP最短长度设定值的 最大值, 且保证足够的判决。 临界判决长度值在各系统的 (GAP 最短长度设 定值的最大值, GAP 最长长度设定的最小值) 的中间选取。 例如三个系统各 自的 GAP设定长度二值为 ( 200us,100us ) (200us, 50us) (180us, 75us), 则判决 长度值应在(180us, lOOus ) 间选取, 比如 140us。
图 11-D所示为利用 GAP长度设定和判决在混合类型的各系统间传递信息 的另一示例。 利用长度判决 GAP携带信息的情况下, GAP两侧边界都设定变 化情况下的发送设定和判决长度值设置方法类似。
图 11-E所示为利用信号 GAP起始点设定和信号强度检测判决在混合类型 的各系统间传递信息示意图。 当采用信号强度判决时,信令判决区间与信号承 载 GAP的范围不重合, 根据信号的灵敏度需要设置信令判决区间。 假设各系 统时间同步, 三个混合类型的系统的 GAP结束时间点统一在 200us, 起始时 间点分别为二值设定 (0, 100)(0, 150)(12.5, 125), 并假设传播时延在 lus到 10us 之间, 不考虑精度裕量。
为保证灵敏度, 根据对数运算特点, 我们要首先保证各种系统在 GAP起 始点位置最早的设定(空状态)时接收方的信号强度都达到最小值。 因此, 信 令判决区间左边界应该取值在最坏情况对应的 (GAP起始时间点最小值中的 最大值加上最大时延) 12.5 + 10 = 22.5us以上; 同时信令判决区间的右边界一 定要求在 200us以下。
兼顾各种系统在 GAP起始点位置最晚(满状态) 时接收方的信号强度相 对最小值的比例尽量大,信令判决区间应该适当尽量大些。且应该在各种系统 的起始时间点公共超过的时间点 (GAP起始时间点最大值中的最小值加上最 小时延) 100 + 1 = lOlus和起始时间点最大到达时间点(GAP起始时间点最大 值中的最大值加上最大时延) 150 + 10 = 160us之间。 具体最佳取值根据信号 强度噪声与接收机灵敏度有关。此约束条件下,我们可以根据实际情况选取信 令判决区间如(22.5us, 150us )。
当然, 如果信令判决区间设定的粒度不同, 将造成可以设置的区间不同, 比如三个系统设置的粒度分别为 lOOus, 50us和 12.5us, 则根据实际情况选择 最优的信令判决区间方案。 比如各系统分别配置信令判决区间为(0us, 200us ) ( 50us, 150us ) ( 25us, 150us ), 均以尽量高灵敏度正常的判决 GAP内携带的 信息。
下面结合应用示例进一步说明本发明实施例提供的多系统间信息传递的 方法。
如图 12所示的无线接入通信系统 A、 B、 C各自有其基站及下属的终端, 其相邻系统间信号交叠部分的终端可以通过上述方法接收来自相邻系统的基 站的信令消息(Sig ), 其中相邻系统间信号交叠部分的终端也可以利用上述方 法向相邻系统的基站发送信令消息。利用这些信令消息及相关机制的配合可以 完成系统间的干扰测量和识别、干扰预防和解决、 空口资源划分及资源动态协 商分配管理、 功率协商、 网络自动规划、 状态信息交互、 邻站发现、 流量分配 协商、 终端同模切换、 终端多模切换及小数据量的其他数据、 消息传递等等功 能。 类似的, 图 13中有线 PMP接入系统(铜线 /铜缆, 如 cable、 PLC/BPL; 光, 如 xPON等) A,、 B,、 C,各自有其基站及下属的终端。 其相邻系统间信号 公共到达部分的终端可以通过上述方法接收来自相邻系统的基站的信令消息 , 其中相邻系统间信号公共到达部分的终端也可以利用上述方法向相邻系统的 基站发送信令消息。利用这些信令及相关机制的配合可以完成系统间的干扰测 量和识别、 干扰预防和解决、 资源划分及资源动态协商分配管理、 功率协商、 网络自动规划、状态信息交互、邻站发现、流量分配协商、终端同模归属切换、 终端多模切换及小数据量的其他数据、 消息传递等等功能。
如图 14中有线接入系统(如 xDSL ) A"、 B"、 C"各自有其基站及下属的 终端。 其相邻系统间信号虽然没有有线连接, 但其信号泄漏造成相互干扰, 各 系统的上下行同步, 所以各系统的基站会串扰到其他系统的终端, 而各系统中 的终端也会串扰到其他系统的基站。可以利用上述方法从各系统的基站向相邻 系统的终端或从各系统的终端向相邻系统的基站发送信令。利用这些信令及相 关机制的配合可以完成系统间的干扰测量和识别、干扰预防和解决、资源划分 及资源动态协商分配管理、 功率协商、 状态信息交互及小数据量的其他数据、 消息传递等等功能。
为了便于本领域技术人员的理解, 下面举例说明, 下述例子适用于上述三 种情况, 为简化描述, 以系统 A、 B、 C为例, 并假设各系统间的调制方式不 完全相同, 且共同使用边界位置判决方法, 各系统同步误差忽略不计。
如图 15所示为各系统分别周期性的占用循环周期内的部分信令承载 GAP 向相邻系统发送信令的示例。
我们可以定义一个公共循环周期 ,在每个周期内为各系统分配一个信令承 载 GAP, 例子中有三个系统, 即每周期内共分配了三个 GAP, 每系统各分别 占用一个(实际应用中也可以分配多个),各系统在非自己占用的 GAP中保持 设置空状态, 而对自己占用的 GAP中,各系统可以利用将信号发送时 GAP的 边界位置设置于接收位置判决点的前后状态(当然两种位置与接收方设置的判 决点间需要有足够的时序裕量), 将信令分多个周期发送给相邻系统。
图 16所示为多个系统利用上述方法各自向相邻系统发送信令的实际时序 示例图, 下面结合图 16进一步说明多周期中 GAP承载信息的具体步骤。 比如系统 A发送 100到相邻系统 B/C , 系统 B发送 110到相邻系统 A/C , 系统 C发送 101到相邻系统 A/B。 假定满状态代表 1, 空状态代表 0。 则在此 三个周期中, 系统 A在其信令承载 GAP中分别设置 GAP状态为满、 空、 空, B、 C系统在同一 GAP位置都设置为空; 系统 B在其信令承载 GAP中分别设 置 GAP状态为满、 满、 空, A、 C系统在同一 GAP位置都设置为空; 系统 C 在其信令承载 GAP中分别设置 GAP状态为满、空、满, A、 B系统在同一 GAP 位置都设置为空。 这样, 各系统就能顺利将信令发送给各自的相邻系统。
对应图 12的系统, 图 17是另一种无线环境下应用举例, 说明某系统可以 在没有正常业务数据收发的状态下也可以利用 GAP来向相邻系统传递信令信 息。 假设仍然是三个系统, 其中系统八、 B有正常业务的数据收发部分, 而系 统 C的状态在 GAP附近没有正常业务收发。
对应图 13的系统, 图 18是另一种有线环境下应用举例, 说明某系统可以 在没有正常业务数据收发的状态下也可以利用 GAP来向相邻系统传递信令信 息。 假设仍然是三个系统, 其中系统 A,、 B,有正常业务的数据收发部分, 而 系统 C,的状态在 GAP附近没有正常业务收发。
对应图 14也可^ ί叚定系统 C"处于在信令承载 GAP附近没有正常业务收 发, 但需要向相邻系统发送信令的情况。
以下应用具体方法举例都可类似适用上述三种情况, 为简化描述, 仍然以 系统 A、 B、 C为例, 并假设各系统间的调制方式不完全相同, 且共同使用边 界位置判决方法,各系统同步误差忽略不计。我们可以定义一个公共循环周期, 在每个周期内为各系统分配一个 GAP, 如图 15所示例子中有三个系统, 即每 周期内共分配了三个 GAP, 每系统各分别占用一个(实际应用中也可以分配 多个),各系统在非自己占用的 GAP中保持设置空状态,而对自己占用的 GAP 中, 各系统可以利用将信号发送时 GAP的边界位置设置于接收位置判决点的 前后状态 (当然两种位置与接收方设置的判决点间需要有足够的时序裕量), 将信令分多个周期发送给相邻系统。 注意其中系统 C使用其 GAP的信息承载 方式, 其满状态会通过在 GAP时间区间之内专门发送若干信号单元, 而其他 接收方一样能够通过其原 GAP的结束点前的 GAP起始位置变化或该 GAP长 度或信号判决区间内的信号强度判断该 GAP内的信息。 类似于图 16, 图 20描述了多周期中 GAP承载信令的具体步骤。 假定系 统 A发送 100到相邻系统 B/C , 系统 B发送 110到相邻系统 A/C , 系统 C发 送 101到相邻系统 A/B。 假定满状态代表 1, 空状态代表 0。 则在此三个周期 中, 系统 A在其信令承载 GAP中分别设置 GAP状态为满、 空、 空, B、 C系 统在同一 GAP位置都设置为空; 系统 B在其信令承载 GAP中分别设置 GAP 状态为满、 满、 空, A、 C系统在同一 GAP位置都设置为空; 系统 C在其信 令承载 GAP中分别设置 GAP状态为满、 空、 满, A、 B系统在同一 GAP位 置都设置为空。 这样, 各系统就能顺利将信令发送给各自的相邻系统。 注意此 时系统 C的空状态在信令承载 GAP及两端都没有信号发送,而满状态用 GAP 边界内区间的部分时间发送专门的若干信令信号单元。
另外, 本发明实施例还提供一种发射机, 包括: 时间装置、 时间片发生装 置和发送装置。 其中, 所述时间装置, 用于确定基准时间; 所述时间片发生装 置, 用于根据待传送数据的比特属性及所述基准时间,将时间片信号插入到数 据帧的特定时间位置; 所述发送装置, 用于发送所述插入时间片信号后的数据 帧和所述时间片信号。
优选的, 所述发射机还可以包括: 时间片参数控制装置, 用于根据待传送 数据的比特属性,控制所述时间片发生装置中时间片信号的状态参数, 以表示 数据。
优选的, 所述发射机还可以包括: 时间片参数控制装置和分块装置, 其中 所述时间片参数控制装置的功能和作用详见上述, 所述分块装置, 用于将待传 送数据分解成多个待传送数据子块,并将每一个待传送数据子块输入到所述时 间片发生装置。
相应的, 本发明实施例还提供一种接收机, 所述接收机包括: 第一时间装 置、 时间片检测装置和判决装置。 其中, 所述第一时间装置, 用于确定与发射 机相同的基准时间; 所述时间片检测装置, 用于接收发射机发送的所述插入时 间片信号的数据帧和所述时间片信号, 并检测所述时间片信号的状态参数; 所 述判决装置, 用于根据所述检测到时间片信号的状态参数解析所述数据帧,得 到发送的数据。
优选的, 如果解析出的所述数据帧为数据子块, 所述接收机还包括组合装 置, 用于将所述判决装置解析出的数据子块按一定的时序组合成完整的数据。 所述发射机和接收机中各个装置的功能和作用的实现过程详见上述方法 或应用实施例中对应步骤的实现过程, 在此不在赞述。
此外, 本发明实施例还提供一种传输系统, 所述系统至少包括: 发射极和 接收机。 所述发射机, 用于确定基准时间, 根据所述基准时间将时间片信号插 入到数据帧中,并发送插入时间片信号后的数据帧及时间片信号;所述接收机, 用于确定与发射机对应的基准时间,并在接收到所述数据帧和所述时间片信号 后, 检测所述时间片信号的状态参数, 根据所述状态参数解析所述数据帧。
其中, 所述发射机包括: 时间装置、 时间片发生装置和发送装置, 进一步 还可以包括: 时间片参数控制装置, 或者时间片参数控制装置和分块装置。 其 各个装置的功能和作用详见上述, 在此不再赘述。
所述接收机包括: 第一时间装置、 时间片检测装置和判决装置。 进一步还 可以包括: 组合装置。 其各个装置的功能和作用详见上述, 在此不再赞述。
需要说明的是, 在本发明实施例中, 所述数据、 数据帧, 在某些应用环境 中其意义可以相同。
以上仅为本发明的较佳实施例而已, 并非用于限定本发明的保护范围。凡 在本发明的精神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含 在本发明的保护范围之内。

Claims

权 利 要 求
1、 一种传输系统, 其特征在于, 至少包括发射机和接收机, 其中, 所述发射机, 用于确定基准时间,根据所述基准时间将时间片信号插入到 数据帧中, 并发送所述数据帧及时间片信号;
所述接收机, 用于确定与发射机对应的基准时间, 并在接收到所述数据帧 和所述时间片信号后,检测所述时间片信号的状态参数,根据所述状态参数解 析所述数据帧。
2、 根据权利要求 1所述的传输系统, 其特征在于,
所述发射机包括:
时间装置, 用于确定基准时间;
时间片发生装置, 用于根据待传送数据的比特属性及所述基准时间, 将时 间片信号插入到数据帧的特定时间位置;
发送装置, 用于发送所述插入时间片信号后的数据帧和所述时间片信号; 所述接收机包括:
第一时间装置, 用于确定与发射积 4目同的基准时间;
时间片检测装置,用于接收发射机的发送装置发送的所述数据帧和时间片 信号, 并检测所述时间片信号的状态参数;
判决装置, 用于根据所述检测到的时间片信号的状态参数解析所述数据 帧。
3、 根据权利要求 2所述的传输系统, 其特征在于, 所述发射机还包括: 时间片参数控制装置, 用于根据待传送数据的比特属性, 控制所述时间片 发生装置中时间片信号的状态参数。
4、 根据权利要求 2所述的传输系统, 其特征在于, 所述发射机还包括: 分块装置, 用于将待传送数据分解成多个待传送数据子块, 并将每一个待 传送数据子块输入到所述时间片发生装置。
5、 根据权利要求 4所述的传输系统, 其特征在于, 如果解析出的所述数 据为数据子块, 则所述接收机还包括:
组合装置,用于将接收到判决装置发送的数据子块按一定的时序组合成完 整的数据。
6、 一种发射机, 其特征在于, 所述发射机包括:
时间装置, 用于确定基准时间;
时间片发生装置, 用于根据待传送数据的比特属性及所述基准时间, 将时 间片信号插入到数据帧的特定时间位置;
发送装置,用于发送所述时间片发生装置插入时间片信号后的数据帧和所 述时间片信号。
7、 根据权利要求 6所述的发射机, 其特征在于, 所述发射机还包括: 时间片参数控制装置, 用于根据待传送数据的比特属性, 控制时间片发生 装置中所述时间片信号的状态参数。
8、根据权利要求 6或 7所述的发射机, 其特征在于, 所述发射机还包括: 分块装置, 用于将待传送数据分解成多个待传送数据子块, 并将每一个待 传送数据子块输入到所述时间片发生装置。
9、 一种接收机, 其特征在于, 所述接收机包括:
第一时间装置, 用于确定与发射机对应的基准时间;
时间片检测装置,用于接收发射机发送的所述插入时间片信号的数据帧和 所述时间片信号, 并检测所述时间片信号的状态参数;
判决装置, 用于根据所述检测到时间片信号的状态参数解析所述数据帧。
10、 根据权利要求 9所述的接收机, 其特征在于, 如果解析出的所述数据 帧为数据子块, 则所述接收机还包括:
组合装置,用于将所述判决装置发送的数据子块按一定的时序组合成完整 的数据。
11、 一种传输方法, 其特征在于, 包括步骤:
确定基准时间;
根据待传送数据的比特属性及所述基准时间,将时间片信号插入到数据帧 的特定时间位置;
发送所述插入时间片信号后的数据帧及所述时间片信号。
12、 根据权利要求 11所述的传输方法, 其特征在于, 所述根据待传送数 据的比特属性及所述基准时间,将时间片信号插入到数据帧的特定时间位置具 体包括: 根据待传送数据的比特属性及所述基准时间,调制所述时间片的边界位置 和 /或所述时间片的时间长度;
将经调制的时间片信号插入到数据帧的特定时间位置。
13、 根据权利要求 11所述的传输方法, 其特征在于, 所述确定基准时间 的方式包括:
根据数据帧的帧头或帧尾确定基准时间; 或
根据同步时钟和 /或同步信号确定基准时间。
14、 根据权利要求 13所述的传输方法, 其特征在于, 所述特定时间位置 包括:
根据所述数据帧的帧头或帧尾确定的基准时间 ,确定特定时间位置为所述 数据帧的帧边界或数据帧的中间位置; 或
才艮据所述同步时钟和 /或同步信号 , 确定特定时间位置为与同步位置固定 的位置。
15、 根据权利要求 11所述的传输方法, 其特征在于, 所述方法还包括: 根据待传送数据的比特属性, 控制所述时间片信号的状态参数。
16、 根据权利要求 15所述的传输方法, 其特征在于, 所述时间片信号的 状态参数至少包括下述一种: 插入时间位置或边界点位置, 时间片的长度和时 间片的填充状态。
17、 根据权利要求 11所述的传输方法, 其特征在于, 所述方法还包括: 接收端在接收到插入时间片信号的数据帧及时间片信号时,检测所述时间 片信号的状态参数;
才艮据所述检测到时间片信号的状态参数解析所述数据帧。
18、 根据权利要求 17所述的传输方法, 其特征在于, 如果解析出的所述 数据帧为数据子块, 则所述方法还包括:
将所述解析出的数据子块按一定的时序组合成完整的数据。
19、 一种实现信息传递的方法, 其特征在于, 包括:
发送方根据待发送的信息单位, 设定特定时间段内信号发送时间参数; 接收方在特定时间段内根据接收信号的特性接收所述信息单位。
20、 根据权利要求 19所述的方法, 其特征在于, 所述信号发送时间参数 是指信号发送的开始和 /或停止的时间位置。
21、 根据权利要求 19所述的方法, 其特征在于, 所述接收信号的特性包 括:
接收到符合信号强度要求的信号的结束时间位置; 或
符合信号强度要求的信号的开始时间位置; 或
符合信号强度要求的信号的结束和开始两个时间位置间的时间长度; 或 两个预设时间位置间信号的强度。
22、 根据权利要求 21所述的方法, 其特征在于, 所述符合信号强度要求 为:
信号的绝对强度大于设定门限;或信号的绝对强度与噪声信号的强度相对 比值大于设定门限。
23、 根据权利要求 19所述的方法, 其特征在于, 所述特定时间段是指发 送方和接收方直接或间接根据基准时间确定的共同的时间段;或根据信号时间 特征确定的时间段。
24、 根据权利要求 22所述的方法, 其特征在于, 所述直接根据基准时间 确定的共同的时间段为:发送方与接收方同步于相同的信号源的时钟,使用相 对同步的基准时间中相同的时间偏移量确定的时间段;
所述间接根据基准时间确定的共同的时间段为:发送方与接收方同步于与 由相同的信号源获取的时钟同步的时钟 ,使用相对同步的基准时间中相同的时 间偏移量确定的时间段。
25、 根据权利要求 23所述的方法, 其特征在于, 所述根据信号时间特征 确定的时间段为:符合信号强度要求的信号的结束和开始两个时间位置间的时 间长度符合一定的预设条件; 该预设条件为符合预设的取值范围区间, 包括单 段区间或分段区间。
26、 根据权利要求 19所述的方法, 其特征在于, 所述设定信号发送时间 参数包括: 在预设的多个备选时间参数中,对应所述待发送信息单位的取值选 取所述备选时间参数。
27、 根据权利要求 26所述的方法, 其特征在于, 所述对应待发送信息单 位的取值选取所述备选时间参数的过程为: 至少两种备选时间参数分别对应单个数据比特的两种取值 ,发送方根据本 收方按照接收信号的对应特性接收该数据比特。
28、 根据权利要求 27所述的方法, 其特征在于,
所述预设规则指本次的两种取值分别固定选取其中一种备选时间参数,或 者本次取值相对于以前取值的关系选取其中的一种备选时间参数。
PCT/CN2007/071282 2006-12-20 2007-12-20 Procédé de transmission, système, émetteur, récepteur et procédé de réalisation d'une transmission de données Ceased WO2008074263A1 (fr)

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