WO2016161816A1 - 一种数据传输方法、装置及计算机存储介质 - Google Patents

一种数据传输方法、装置及计算机存储介质 Download PDF

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WO2016161816A1
WO2016161816A1 PCT/CN2015/097261 CN2015097261W WO2016161816A1 WO 2016161816 A1 WO2016161816 A1 WO 2016161816A1 CN 2015097261 W CN2015097261 W CN 2015097261W WO 2016161816 A1 WO2016161816 A1 WO 2016161816A1
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Prior art keywords
paging message
paging
coverage enhancement
subframe
time intervals
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PCT/CN2015/097261
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English (en)
French (fr)
Inventor
陈宪明
戴博
夏树强
鲁照华
刘锟
石靖
张雯
方惠英
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中兴通讯股份有限公司
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Publication of WO2016161816A1 publication Critical patent/WO2016161816A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management

Definitions

  • the present invention relates to wireless communication technologies, and in particular, to a data transmission method and apparatus, and a computer storage medium.
  • MTC Machine Type Communication
  • M2M Machine to Machine
  • UE User Equipment
  • GSM Global System of Mobile communication
  • LTE Long Term Evolution
  • M2M multi-class data based on LTE The business will also be more attractive.
  • the cost of the MTC UE is mainly from the baseband processing part and the radio frequency part.
  • reducing the uplink and/or downlink transmission bandwidth of the UE is a very effective way to reduce the cost of the MTC UE, for example, when the system bandwidth is far beyond 1.4 MHz.
  • set all MTC UE uplink and / or downlink transmission bandwidth can only be narrowband bandwidth such as 1.4MHz.
  • the cost of the MTC UE can be further reduced by a single receiving antenna, reduced transmit power, and reduced maximum transport block size (TBS).
  • the enhanced channel type includes a Physical Uplink/Downlink Shared Channel (PUSCH/PDSCH) and a Physical Uplink/Downlink Control Channel (PUCCH/PDCCH).
  • the coverage enhancement of the PDSCH includes System Information Block (SIB) data, coverage enhancement of paging messages, and coverage enhancement of unicast service data. To accumulate more energy to improve coverage, repeated methods are often used to achieve transmission enhancements for various channel types.
  • SIB System Information Block
  • the base station configures the paging message to be transmitted in a limited paging period (Paging Cycle) of the restricted radio frame and the subframe position, that is, an available subframe for paging message transmission.
  • Paging Cycle a limited paging period
  • the base station configures the paging message to be transmitted in a limited paging period (Paging Cycle) of the restricted radio frame and the subframe position, that is, an available subframe for paging message transmission.
  • a longer paging message transmission delay will cause the determined radio resource to be occupied by the paging message for a long time, which is disadvantageous for the coordinated scheduling of the radio resources; on the other hand, the longer paging message transmission delay is still Normal transmission of other broadcast and/or unicast data other than the paging message will be affected.
  • Embodiments of the present invention provide a data transmission method, apparatus, and computer storage medium, which can greatly reduce the transmission delay of a paging message.
  • An embodiment of the present invention provides a data transmission method, where the method includes:
  • N is a positive integer greater than or equal to 2.
  • the available subframes are subframe 0, subframe 4, subframe 5, and subframe 9, or at least include subframe 0, subframe 4, and subframe 5.
  • all available subframes of the subframe 9; for the time division duplex TDD system, the available subframes are subframe 0, subframe 1, subframe 5, and subframe 6, or at least include subframe 0, subframe 1. All available subframes of subframe 5 and subframe 6; wherein all available subframes include non-multicast and broadcast single frequency network MBSFN downlink subframes and MBSFN subframes without multicast traffic transmission.
  • the number N of time intervals occupied by the repeated transmission of the paging message in the coverage enhancement level includes: obtaining the paging message under the coverage enhancement level by indicating the paging system parameter of the broadcast to the UE.
  • the number of time intervals occupied by the repeated transmissions is N; or, according to the available subframes, the number N of time intervals occupied by the repeated transmission of the paging message under the coverage enhancement level is implicitly determined.
  • determining, according to the identifier of the UE, the N time intervals for repeatedly transmitting the paging message including: setting all the time intervals in the range of each paging cycle size P_Cycle by N consecutive time intervals. Granularity is performed; determining, according to the UE identifier, one of all time interval partitions; N time intervals for repeatedly transmitting the paging message are N consecutive time intervals included in the partition;
  • the value of the P_Cycle is obtained by means of a broadcast system parameter or a UE-specific signaling indication to the UE, and is an integer of the number of time intervals occupied by the repeated transmission of the paging message with the maximum coverage enhancement level. Times.
  • the determining, according to the identifier of the UE, one of all time interval partitions including: determining a first time interval according to the identifier of the UE; determining consecutive N time intervals starting from the first time interval The time interval is divided for the repeated transmission of the paging message.
  • the method further includes: if the determined paging narrowband When a collision occurs in the case of transmitting a paging message having different coverage enhancement levels, a paging message having one of the coverage enhancement levels is arbitrarily reserved; or the paging message of the different coverage enhancement level is classified as unique a paging message of a maximum coverage enhancement level and at least one paging message having a coverage enhancement level different from the maximum coverage enhancement level; the at least one paging having a coverage enhancement level different from the maximum coverage enhancement level And synthesizing the message with the unique paging message having the maximum coverage enhancement level to obtain a synthesized paging message; and then, in the N time intervals corresponding to the unique paging message having the maximum coverage enhancement level Transmitting the synthesized paging message.
  • the paging narrowband is one of a narrowband set that can be used for repeatedly transmitting a paging message; wherein the narrowband set is obtained by a preset manner or by indicating a paging parameter of the broadcast to the UE;
  • the narrowband set is independent of the system information block SIB and the primary information block MIB narrowband set, or overlaps with the SIB and MIB narrowband sets.
  • the paging message transmission is abandoned; when the paging message conflicts with other SIB transmissions other than SIB1, the paging message is discarded or the paging message Transmission of other SIBs.
  • the manner of repeatedly transmitting the paging message is a narrowband frequency hopping mode.
  • the method further includes: when the FDD system is in the narrowband frequency hopping mode When enabled, if the available subframes are subframe 0, subframe 4, subframe 5, and subframe 9, a new frame timing corresponding to the paging message is determined.
  • the method further includes: when the narrowband frequency hopping mode is enabled, if the paging message and the broadcast and/or unicast data except the paging message adopt overlapping narrowband sets, The paging message is repeatedly transmitted by the paging message in a manner of sharing a hopping interval with broadcast and/or unicast data other than the paging message.
  • the frequency hopping interval is equal to M time intervals; wherein, M is a natural number greater than or equal to 1, and satisfies the repeated transmission of the paging message at any coverage enhancement level.
  • the number of time intervals N is an integer multiple of M; the frequency hopping interval is preset or is indicated to the UE by a broadcast system parameter.
  • the number of time intervals occupied by the repeated transmission of the paging message having the Xth coverage enhancement level is an integer multiple of the number of time intervals occupied by the repeated transmission of the paging message having the Yth coverage enhancement level; X and Y are positive integers greater than or equal to 1, and X is less than Y.
  • the method further includes: when the available subframe is all available subframes including at least the four subframes, acquiring all available subframes by means of a broadcast system parameter indicating to the UE
  • the system parameters of the broadcast include MBSFN subframe configuration parameters, MBSFN subframe configuration parameters for multicast service transmission, and TDD subframe configuration parameters.
  • the process of repeatedly transmitting the paging message has the following feature: occupying all physical resources in the narrowband of the paging, the modulation mode is four-phase shift keying QPSK, and fixed or restricted transmission.
  • Block size TBS Block size
  • the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the data transmission method according to the embodiment of the present invention.
  • the embodiment of the invention further provides a data transmission device, the device comprising: an acquisition module, Determining a module and a transmission module;
  • the acquiring module is configured to obtain a time interval N occupied by repeated transmission of the paging message under the coverage enhancement level
  • the determining module is configured to determine, according to the user equipment UE identifier, N time intervals for repeatedly transmitting the paging message, and determine, according to the coverage enhancement level, a paging narrowband for repeatedly transmitting the paging message;
  • the transmitting module is configured to repeatedly transmit the paging message on the available subframes in the determined N time intervals and the determined paging narrowband;
  • N is a positive integer greater than or equal to 2.
  • the acquiring module is further configured to acquire, by means of the broadcast paging system parameter, the UE to obtain the number N of time intervals occupied by the repeated transmission of the paging message under the coverage enhancement level; or, according to the The number of time intervals N occupied by the repeated transmission of the paging message at the coverage enhancement level can be implicitly determined by the subframe.
  • the determining module is further configured to block all the time intervals in the P_Cycle range of each paging cycle by using N time intervals as a granularity; according to the UE identifier, determine all the time interval blocks.
  • One of the N time intervals for repeatedly transmitting the paging message is N consecutive time intervals included in the block; wherein the Paging Cycle value is a system parameter that is broadcasted, or is UE-specific Indicated by the signaling, and is an integer multiple of the number of time intervals occupied by the repeated transmission of the paging message of the maximum coverage enhancement level.
  • the determining module is further configured to: determine, according to the identifier of the UE, a first time interval; and determine, in the consecutive N time intervals starting from the first time interval, a time for repeatedly transmitting the paging message. Interval block.
  • the transmission module is further configured to arbitrarily reserve the paging with one of the coverage enhancement levels if a collision occurs in the case of transmitting the paging message with different coverage enhancement levels on the determined paging narrowband.
  • the call message is classified into a unique paging message having a maximum coverage enhancement level and at least one paging message having a coverage enhancement level different from the maximum coverage enhancement level; the at least one having a different coverage enhancement level than the maximum coverage enhancement level
  • the unique enhanced coverage paging message is combined with the unique paging message having the maximum coverage enhancement level to obtain a synthesized paging message; and thereafter, the unique paging message having the maximum coverage enhancement level
  • the synthesized paging message is transmitted in corresponding N time intervals.
  • the manner in which the transmission module is used to repeatedly transmit the paging message is a narrowband frequency hopping mode.
  • the determining module is further configured to, when the narrowband hopping mode is enabled, to the FDD system, if the available subframe is subframe 0, subframe 4, subframe 5, and subframe 9, determine Corresponding to the new frame timing of the paging message.
  • the transmission module is further configured to: when the narrowband frequency hopping mode is enabled, if the paging message and the broadcast and/or unicast data except the paging message adopt overlapping narrowband sets And transmitting, by the paging message, the paging message by means of sharing a hopping interval with broadcast and/or unicast data except the paging message.
  • the data transmission method and device and the computer storage medium provided by the embodiment of the present invention acquire the number N of time intervals occupied by the repeated transmission of the paging message under the coverage enhancement level; and determine, according to the UE identifier, the method for repeatedly transmitting the paging N time intervals of the message; determining, according to the coverage enhancement level, a paging narrowband for repeatedly transmitting the paging message; repeating the available subframes in the determined N time intervals and the determined paging narrowband Transmitting the paging message; wherein N is a positive integer greater than or equal to 2.
  • the transmission delay of the paging message can be greatly reduced, and the paging message repeatedly transmitted can be prevented from occupying the radio resource for a long time, thereby improving the cooperative scheduling capability of the radio resource and reducing the other broadcast and/or unicast data.
  • the effect of normal transmission is improved.
  • FIG. 1 is a schematic flowchart of an implementation process of a data transmission method according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of an implementation process for determining N time intervals for repeatedly transmitting a paging message according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a narrowband relationship between a paging narrowband and an SIB or MIB according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a paging sub-frame that cannot receive subframes other than subframe 0/4/5/9 in the related art
  • FIG. 5 is a schematic diagram of a new frame timing corresponding to a paging message according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a structure of a data transmission apparatus according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of determining a repeated transmission resource of a paging message according to a UE identifier according to an application example of the present invention
  • FIG. 8 is a schematic diagram of a hopping interval of a paging message and a unicast data sharing according to an application example of the present invention.
  • the number N of time intervals occupied by the repeated transmission of the paging message at the coverage enhancement level is obtained; and N time intervals for repeatedly transmitting the paging message are determined according to the UE identifier;
  • the coverage enhancement level determines a paging narrowband for repeatedly transmitting the paging message; the paging message is repeatedly transmitted on the available subframes in the determined N time intervals and the determined paging narrowband.
  • N is a positive integer greater than or equal to 2.
  • a data transmission method according to an embodiment of the present invention includes:
  • Step S101 Acquire a number N of time intervals occupied by repeated transmission of the paging message under the coverage enhancement level
  • N is a positive integer greater than or equal to 2.
  • obtaining the number N of time intervals occupied by the repeated transmission of the paging message in the coverage enhancement level includes: obtaining the repeated transmission of the paging message under the coverage enhancement level by indicating the paging system parameter of the broadcast to the UE The number of time intervals occupied by N; or, according to available The subframe (available subframe) of the paging message transmission implicitly determines the number N of time intervals occupied by the repeated transmission of the paging message at the coverage enhancement level.
  • the different possible examples of the above-mentioned subframes available for paging message transmission may be bound to the number of time intervals N occupied by the repeated transmission under the coverage enhancement level, so that all subframes available for paging message transmission are made.
  • one of the different examples of available sub-frames eg, subframe 0/4/5/9) always corresponds to a unique number of time intervals.
  • the time interval includes, but is not limited to, a radio frame and a field. Given the potentially large time span of repeated transmissions of paging messages, radio frames and fields may be more suitable for use as the minimum granularity of allocation of paging domain time domain resources.
  • the number of time intervals occupied by the repeated transmission of the paging message having the Xth coverage enhancement level is an integral multiple of the number of time intervals occupied by the repeated transmission of the paging message having the Yth coverage enhancement level; wherein the X And Y is a positive integer greater than or equal to 1, and X is less than Y. That is to say, the number of time intervals occupied by the repeated transmission of the paging message of the larger coverage enhancement level is an integral multiple of the number of time intervals occupied by the repeated transmission of the paging message of the smaller coverage enhancement level.
  • the coverage enhancement level is also referred to as a repetition level. The higher the level, the greater the coverage enhancement required for paging messages.
  • Step S102 Determine, according to the UE identifier, N time intervals for repeatedly transmitting the paging message.
  • the method includes:
  • All time intervals in the range of P_Cycle of each paging cycle size are segmented by N consecutive time intervals (ie, each block includes N consecutive time intervals);
  • the N time intervals for repeatedly transmitting the paging message are N consecutive time intervals included in the block.
  • the method can implement different time interval blocks for repeated transmission of different UEs.
  • the value of the P_Cycle is obtained by using a broadcast system parameter or a UE-specific signaling indication to the UE, and is the number of time intervals occupied by the repeated transmission of the paging message with the maximum coverage enhancement level. Integer multiple. That is to say, the public P_Cycle is notified by the broadcasted system parameters, but the possibility of performing P_Cycle adjustment for a specific UE by using UE-specific signaling is not excluded. In this way, it is beneficial to reduce complexity and facilitate resource alignment.
  • the determining, according to the identifier of the UE, one of the blocks in all time interval blocks including:
  • Step S1021 Determine a first time interval according to the identifier of the UE.
  • the calculation expression of the first time interval is determined according to the identifier of the UE as follows:
  • TIN_1mod P_Cycle N*(UE_ID mod(P_Cycle/N));
  • P_Cycle indicates the size of the paging period
  • UE_ID indicates the identifier of the UE
  • TIN_1 indicates the number of the first time interval
  • TIN_O indicates the offset of the UE-specific time interval block, which ranges from 0 to Q-1, where Q is the number of time interval blocks of size N included in the P_Cycle
  • TIN_1_Temp represents an intermediate variable used to calculate the TIN_1.
  • the TIN_O may be indicated to the UE by the UE's proprietary Radio Resource Control (RRC) signaling, and the introduction of the TIN_O further increases the flexibility of resource allocation when repeatedly transmitting the paging message.
  • RRC Radio Resource Control
  • Step S1022 It is determined that consecutive N time intervals starting from the first time interval are time interval blocks for repeatedly transmitting the paging message.
  • Step S103 Determine a paging narrowband for repeatedly transmitting the paging message according to the coverage enhancement level
  • the method includes:
  • All coverage levels are divided into K groups, the K being a positive integer greater than or equal to 1, indicating the number of narrowbands that can be used to repeatedly transmit the paging message, and the K different coverage level groups and K different pagings Narrow-band one-to-one correspondence, wherein the packet information of all coverage levels and paging narrowband information corresponding to different packets are preset or indicated to the UE by broadcast system parameters;
  • the paging narrowband for repeatedly transmitting the paging message is a paging narrowband corresponding to the coverage enhancement level group in which the coverage level is located.
  • the method can implement any paging narrowband for repeatedly transmitting the paging message corresponding to at least one coverage enhancement level. For example, envisioning that the number of narrowbands available for repeated transmission of the paging message is two (K equals 2), and there are a total of four coverage levels, the following may be preset or indicated by the broadcasted system parameters:
  • the coverage level is divided into two coverage level groups, the first coverage level group includes first and second coverage levels, the second coverage level group includes third and fourth coverage levels, and the first and second coverage level groups respectively correspond to The first and second paging narrowbands.
  • the paging narrowband is one of a narrowband set that can be used to repeatedly transmit a paging message
  • the narrowband set is obtained by means of a preset manner or by means of a broadcast paging system parameter indicating to the UE; the narrowband set is independent of a system information block (SIB) and a master information block (MIB) narrowband.
  • SIB system information block
  • MIB master information block
  • the overlap includes full overlap and partial overlap.
  • the paging message When the paging message conflicts with other SIB transmissions other than SIB1, the paging message or the transmission of the other SIB is discarded.
  • the set of paging narrowbands includes:
  • the narrowband that can be used for paging messages, SIBs, and MIB transmissions is unique.
  • the paging narrowband and the SIB and MIB each use independent narrowbands, and between three narrowbands. There is no conflict, but considering that a small bandwidth scenario may not have enough narrowband numbers available, this approach may not be suitable for small system bandwidths, such as when the system bandwidth is 3MHz and 1.4MHz.
  • the paging message and the SIB are the same, that is, two narrow bands that are completely overlapped and independent of the center narrow band for MIB repeated transmission.
  • the SIB transmission uses two narrow bands except the center narrow band
  • the paging message uses one of two narrow bands except the center narrow band
  • the center narrow band is used for MIB repeated transmission.
  • the narrowband and SIB narrowband sets are partially overlapping.
  • the transmission of the current paging message is abandoned, and when the paging message conflicts with other SIB transmissions other than SIB1, the current paging is discarded.
  • the transmission of the message or SIB considering the possibility of abandoning the paging message transmission as described above, the paging performance is degraded or the delay is increased, so the mode is not applicable to the small system bandwidth of 1.4 MHz.
  • the paging message and the MIB share a unique center narrowband, and two narrowbands other than the center narrowband are used for SIB transmission.
  • the paging message and the MIB share a unique central narrowband, and one of the two narrowbands except the center narrowband is used for SIB transmission.
  • the current paging transmission is abandoned; in view of the possibility of abandoning the paging transmission described above, paging performance or delay may be caused.
  • This approach is also not applicable to 1.4MHz system bandwidth, and different MIB coverage enhancement schemes may also result in collision probabilities for different paging and MIB transmissions.
  • FIG. 3 (f) can be used for paging messages, SIB and MIB transmission narrow
  • the band is unique and the paging message shares a unique central narrowband with the SIB and MIB, and the two narrowbands except the center narrowband are no longer used for SIB and paging message transmission.
  • the paging message when the paging message conflicts with the MIB or SIB1 transmission, the transmission of the paging message is abandoned; when the paging message conflicts with other SIB transmissions other than SIB1, the paging message is abandoned or SIB transmission; considering the possibility of abandoning paging message transmission, paging performance may be degraded or delay may be increased; and coverage enhancement schemes of different MIBs or SIBs may result in collision probability of different paging and MIB or SIB transmissions .
  • the only advantage of this approach is that it can be applied to 1.4MHz system bandwidth.
  • Step S104 repeatedly transmitting the paging message on the available subframes in the determined N time intervals and the determined paging narrowband.
  • the available subframes are subframe 0, subframe 4, subframe 5, and subframe 9, or include at least subframe 0 and subframe. 4. All available subframes of subframe 5 and subframe 9; for a Time Division Duplex (TDD) system, the available subframes are subframe 0, subframe 1, subframe 5, and subframe 6, or Is all available subframes including at least subframe 0, subframe 1, subframe 5, and subframe 6; wherein all available subframes include non-multicast and broadcast single frequency networks (Multicast and Broadcast Single Frequency) Network, MBSFN) downlink subframes and MBSFN subframes without multicast service transmission.
  • FDD Frequency Division Duplex
  • MBSFN Multicast and Broadcast Single Frequency
  • the available subframe is all available subframes including at least the 4 subframes
  • the all available subframes are obtained by means of a broadcast system parameter indicating to the UE; wherein the broadcasted
  • the system parameters include MBSFN subframe configuration parameters, MBSFN subframe configuration parameters for multicast service transmission, and TDD subframe configuration parameters.
  • all available subframes are other subframes than the MBSFN subframe in which the multicast service transmission exists; for the TDD system, all available subframes are in addition to the multicast service transmission.
  • the non-MBSFN downlink subframes respectively include at least subframes 0/4/5/9 and subframes 0/1/5/6.
  • the maximum paging subframe resource should be used preferentially; in particular, considering that for the FDD system, the subframe 0/4/5/9 is always used. It is not configured as an MBSFN subframe.
  • subframes 0/1/5/6 are always non-uplink subframes and are not configured as MBSFN subframes, so they can be used to transmit paging messages for FDD and TDD systems.
  • the subframes should at least include subframes 0/4/5/9 and subframes 0/1/5/6, respectively.
  • the UE can acquire the subframe configuration parameters of the current cell (for example, the MBSFN subframe configuration parameter, the MBSFN subframe configuration parameter for the multicast service transmission, and the TDD subframe configuration parameter, etc.), the UE is other than the above four subframes. Other subframes may also be used for repeated transmission of paging messages, and finally all available subframes may be used for repeated transmission of paging messages. For example, when the UE in the idle state enters a new cell, the system information of the receiving cell (including the subframe configuration parameter of the current cell) is usually waking up in advance, but the specific receiving or waking time depends on the UE.
  • the system information of the receiving cell including the subframe configuration parameter of the current cell
  • the UE entering the new cell from the idle state starts to acquire the system information of the cell, there may be more or less delay, so the UE may not be able to receive all paging subframes during the above delay.
  • the subframe of the paging message transmitted by the current cell includes subframe 1 and subframe 6 in addition to the subframe 0/4/5/9, but the UE is awake to receive the homing.
  • the subframe configuration information of the current cell is not acquired in time, so that it is not known that subframe 1 and subframe 6 are also used for paging message transmission, so the UE may not be able to receive or utilize transmission in subframe 1 and subframe 6. Page message.
  • the repeated transmission of the paging message has the following features: 1) occupying all physical resources in a narrow band of repeatedly transmitting paging messages; 2) modulation mode is four-phase shift keying (Quadrature) Phase Shift Keying, QPSK); 3) Fixed or restricted Transport Block Size (TBS).
  • TBS Fixed or restricted Transport Block Size
  • the UE needs to monitor or blindly detect different TBSs when receiving the paging message. It should be noted that although the UE can monitor or blindly detect different TBSs, it is preferable that the UE always monitors or detects a unique coverage enhancement level in consideration of narrowband transmission and UE buffer size limitation.
  • the method further comprises: in the process of repeatedly transmitting the paging message on the available subframes in the determined N time intervals and the determined paging narrowband, if the determined homing When a collision occurs in a case where paging messages having different coverage enhancement levels are transmitted on the narrow band, a paging message having one of the coverage enhancement levels is arbitrarily reserved; or the paging message of the different coverage enhancement level is classified as unique a paging message having a maximum coverage enhancement level and at least one paging message having a coverage enhancement level different from the maximum coverage enhancement level; the at least one coverage enhancement level having a different coverage enhancement level than the maximum coverage enhancement level a paging message is synthesized with the unique paging message having a maximum coverage enhancement level to obtain a synthesized paging message; and thereafter, N times corresponding to the unique paging message having a maximum coverage enhancement level The synthesized paging message is transmitted in the interval.
  • the DCI data may follow a transmission manner of the paging message;
  • the DCI data is carried on an enhanced downlink control channel (Enhanced PDCCH, EPDCCH).
  • Enhanced PDCCH enhanced downlink control channel
  • the cross-subframe scheduling mode of the DCI is implemented, the number of time intervals occupied by the repeated transmission of the paging message under the coverage enhancement level is equivalent to the repeated transmission of the DCI under the coverage enhancement level.
  • the number of time intervals occupied, the narrow band of the repeated transmission paging message is equivalent to the EPDCCH narrow band of the repeated transmission DCI data.
  • subframe 0/4/5/9 is used for repeated transmission of paging messages, then repeated transmissions equivalent to DCI must also be limited to subframes 0/4/5/9.
  • the manner of repeatedly transmitting the paging message may be a narrowband frequency hopping manner.
  • the narrowband frequency hopping mode needs to be enabled, and the hopping interval is equal to M time intervals.
  • M is a natural number greater than or equal to 1
  • the number of time intervals N occupied by the repeated transmission of the paging message at any coverage enhancement level is an integer multiple of M
  • the frequency hopping interval is preset, or , is indicated to the UE by the system parameters of the broadcast.
  • the repeated transmission of paging messages under different coverage enhancement levels usually always takes N time intervals, so it should be preferably defined for repetition.
  • the hopping interval for transmitting paging messages is always M time intervals.
  • the method when the manner of repeatedly transmitting the paging message is a narrowband frequency hopping mode, the method further includes: if the narrowband hopping mode is enabled, if the available sub The frame is subframe 0, subframe 4, subframe 5, and subframe 9, and a new frame timing corresponding to the paging message is determined.
  • the new radio frame subframe 0 corresponds to the existing radio frame subframe 4
  • the new radio frame has an offset of 3 subframes from the existing radio frame timing.
  • the method when the manner of repeatedly transmitting the paging message is a frequency hopping mode, the method further includes: when the narrowband hopping mode is enabled, if the paging message is The broadcast and/or unicast data other than the paging message adopts an overlapping narrowband set, and is repeated by the paging message in a manner of sharing the frequency hopping interval with the broadcast and/or unicast data except the paging message. Transmitting the paging message. In this way, the resource alignment can be further ensured, thereby facilitating the improvement of resource utilization efficiency.
  • multi-subframe channel estimation on the UE side can be applied to improve channel estimation performance even if not all subframes within the hopping interval are used for paging message transmission.
  • the paging narrowband in the embodiment of the present invention is a physical narrowband.
  • the narrowband frequency hopping function for repeatedly transmitting the paging message is turned on Next, for different time intervals, the paging messages may be transmitted in the same or different physical narrowband.
  • the data transmission method in the embodiment of the present invention can greatly reduce the transmission delay of the paging message, and avoid the long-time occupation of the radio resource by the repeatedly transmitted paging message, thereby improving the cooperative scheduling capability of the radio resource. Reduce the impact on normal transmission of other broadcast and/or unicast data.
  • the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the data transmission method according to the embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention. As shown in FIG. 6, the apparatus includes an obtaining module 601, a determining module 602, and a transmitting module 603;
  • the obtaining module 601 is configured to obtain the number N of time intervals occupied by the repeated transmission of the paging message under the coverage enhancement level; where N is a positive integer greater than or equal to 2.
  • the acquiring module 601 acquires, by means of the broadcast paging system parameter, the UE to obtain the number of time intervals occupied by the repeated transmission of the paging message under the coverage enhancement level; or, according to the available subframe, Determine the number of time intervals occupied by the repeated transmission of the paging message under the coverage enhancement level;
  • the determining module 602 is configured to block all the time intervals in the range of each paging cycle size P_Cycle by using N time intervals as a granularity; and determine one of all time interval partitions according to the UE identifier;
  • the N time intervals for repeatedly transmitting the paging message are N consecutive time intervals included in the block; wherein the Paging Cycle value is a system parameter that is broadcasted, or a UE-specific signaling station. Indicated, and is an integer multiple of the number of time intervals occupied by the repeated transmission of the paging message of the maximum coverage enhancement level.
  • the determining module 602 is configured to determine one of all time interval partitions according to the UE identifier, including:
  • the transmitting module 603 is configured to repeatedly transmit the paging message on the available subframes in the determined N time intervals and the determined paging narrowband;
  • the transmission module 603 is further configured to arbitrarily retain if a collision occurs in a case where paging messages having different coverage enhancement levels are transmitted on the determined paging narrowband.
  • the manner in which the transmission module 603 is used to repeatedly transmit the paging message may be a narrowband frequency hopping manner.
  • the determining module 602 is further configured, if the narrowband hopping mode is enabled, for the FDD system, if the available subframe is subframe 0, subframe 4, Subframe 5 and subframe 9, then determine a new frame timing corresponding to the paging message.
  • the transmission module 603 is further configured to: when the narrowband frequency hopping mode is enabled, if the paging message is broadcasted and/or except the paging message. Or the unicast data adopts an overlapping narrowband set, and the paging message is repeatedly transmitted by the paging message and the broadcast and/or unicast data sharing hopping interval except the paging message.
  • Each module in the device in the embodiment of the present invention may be implemented by a processor in the device, or may be implemented by a specific logic circuit; for example, in practical applications, it may be located in the device.
  • Central Processing Unit CPU
  • MPU Micro Processor Unit
  • DSP Digital Signal Processor
  • FPGA Field Programmable Gate Array
  • FIG. 7 is a schematic diagram of determining a repeated transmission resource of a paging message according to a coverage enhancement level and a UE identifier according to an application example of the present invention; wherein the paging message repetition transmission resource includes N times for repeatedly transmitting the paging message Interval and paging narrowband.
  • the narrowband for repeated transmission of the paging message includes two, that is, the first narrowband and the second narrowband, and the coverage enhancement level is four, wherein the first narrowband is used for the first and second coverage.
  • the transmission of the enhanced level paging message, the second narrowband is used for the transmission of the 3rd and 4th coverage enhanced level paging messages.
  • all time intervals in the range of each paging cycle size P_Cycle are N1 (the number of time intervals occupied by paging messages repeatedly transmitted under the first coverage enhancement level)
  • the interval is divided into granularities (each block includes N1 time intervals), and the final time interval block number is 16, wherein the 7th block is used to transmit a paging message to UE1 at the first coverage enhancement level.
  • the eighth block is used to transmit a paging message to the UE 2 at the first coverage enhancement level.
  • all time intervals in the range of each paging cycle size P_Cycle are N2 (the number of time intervals occupied by paging messages repeatedly transmitted under the second coverage enhancement level)
  • the interval is block-divided (each block includes N2 time intervals), and the final time interval block number is 8, wherein the third block is used to transmit a paging message to the UE3 at the second coverage enhancement level.
  • the sixth block is used to transmit a paging message to the UE 4 at the second coverage enhancement level.
  • the size of each paging cycle is P_Cycle All time intervals in the range are divided into granularities by N3 (the number of time intervals occupied by paging messages repeatedly transmitted under the third coverage enhancement level) (each block includes N3 time intervals), and finally The time interval block number is four, wherein the first block is used to transmit a paging message to the UE 5 at the third coverage enhancement level.
  • all time intervals in the range of each paging cycle size P_Cycle are N4 (the number of time intervals occupied by paging messages repeatedly transmitted under the fourth coverage enhancement level)
  • the interval is divided into granularities (each block includes N4 time intervals), and the final time interval block number is two, wherein the second block is used to transmit a paging message to the UE 6 at the fourth coverage enhancement level.
  • FIG. 8 is a schematic diagram of a hopping interval of a paging message and a unicast data sharing according to an application example of the present invention.
  • the narrowband for repeated transmission of paging messages corresponds to two physical narrowbands, that is, the first physical narrowband and the second physical narrowband, and the narrowband for repeated transmission of unicast data corresponds to the same two paging messages.
  • the physical narrowband has the same hopping interval of the paging message and the unicast data, and the specific hopping interval is M time intervals.
  • the repeatedly transmitted paging message occupies the first physical narrowband
  • the repeatedly transmitted unicast data occupies the second physical narrowband
  • the repeatedly transmitted paging message is transmitted in the second M time interval. Occupying the second physical narrowband, the unicast data that is repeatedly transmitted occupies the first physical narrowband, and so on.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the present invention is directed to a method, apparatus (system), and computer program in accordance with an embodiment of the present invention
  • the flow chart and/or block diagram of the product is described. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • the data transmission method of the embodiment of the present invention acquires the number N of time intervals occupied by the repeated transmission of the paging message under the coverage enhancement level; and determines N time intervals for repeatedly transmitting the paging message according to the UE identifier; Determining, according to the coverage enhancement level, a paging narrowband for repeatedly transmitting the paging message; repeatedly transmitting the paging message on the available subframes in the determined N time intervals and the determined paging narrowband; Where N is a positive integer greater than or equal to 2.

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Abstract

本发明实施例提供一种数据传输方法、装置及计算机存储介质,获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N;根据用户设备(UE)标识,确定用于重复传输所述寻呼消息的N个时间区间;根据所述覆盖增强等级确定用于重复传输所述寻呼消息的寻呼窄带;在所确定的N个时间区间中的可用子帧和所确定的寻呼窄带上重复传输所述寻呼消息;其中,N为大于等于2的正整数。

Description

一种数据传输方法、装置及计算机存储介质 技术领域
本发明涉及无线通信技术,尤其涉及一种数据传输方法、装置及计算机存储介质。
背景技术
机器类型通信(Machine Type Communication,MTC)或机器到机器(Machine to Machine,M2M)用户设备(User Equipment,UE)是现阶段物联网的主要应用形式。低功耗和/或低成本是其可大规模应用的重要保障。目前市场上部署的M2M设备主要基于全球移动通信(Global System of Mobile communication,GSM)系统。近年来,由于长期演进(Long Term Evolution,LTE)系统的频谱效率更高,以及越来越多的移动运营商已经确定LTE作为未来宽带无线通信系统的演进方向,所以基于LTE的M2M多种类数据业务也将更具吸引力。
MTC UE的成本主要来自基带处理部分和射频部分。为降低MTC UE的成本,减小UE上行和/或下行的传输带宽(包括基带和射频带宽)是降低MTC UE成本的一种非常有效的方式,例如,当系统带宽远超过1.4MHz的情况下,设置所有MTC UE上行和/或下行传输带宽也只能为1.4MHz等窄带带宽。除了上述降带宽的方法以外,也可以通过单接收天线、减少的发射功率和减少的最大传输块大小(Transport Block Size,TBS)等方式来进一步降低MTC UE的成本。
由于一些MTC UE是被安装在住宅的地下室或者被铝合金窗或传统厚墙建筑结构所遮蔽的位置,与正常的MTC UE相比,这些UE在射频接口上会经历相当严重的穿透损耗,从而为确保上述UE正常的数据传输,需要 增强上述MTC UE的覆盖。其中,增强的信道类型包括:物理上行或下行共享信道(Physical Uplink/Downlink Shared Channel,PUSCH/PDSCH)以及物理上行或下行控制信道(Physical Uplink/Downlink Control Channel,PUCCH/PDCCH)等。其中,PDSCH的覆盖增强包括系统信息块(System Information Block,SIB)数据、寻呼(Paging)消息的覆盖增强和单播业务数据的覆盖增强。为积累更多的能量以改善覆盖,重复的方法通常被用于实现各种信道类型的传输增强。
现阶段,与单播业务数据不同,基站是配置寻呼消息在受限的无线帧和子帧位置以确定的寻呼周期(Paging Cycle)进行传输,即用于寻呼消息传输的可获得子帧是以寻呼周期为间隔周期性出现;如果上述方法被沿用于寻呼消息的覆盖增强/重复传输的情况下,为了实现覆盖增强目标,则跨大量寻呼周期的合并接收/解码将被采用,将会很大程度上增加寻呼消息的传输延时。一方面,较长的寻呼消息传输延时将导致确定的无线资源长时间的被寻呼消息占用,从而不利于无线资源的协同调度;另一方面,较长的寻呼消息传输延时还将影响其它除所述寻呼消息之外的广播和/或单播数据的正常传输。
发明内容
本发明实施例提供一种数据传输方法、装置及计算机存储介质,能够极大地减少寻呼消息的传输延时。
本发明实施例的技术方案是这样实现的:
本发明实施例提供一种数据传输方法,所述方法包括:
获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N;
根据用户设备UE标识确定用于重复传输所述寻呼消息的N个时间区间;
根据所述覆盖增强等级确定用于重复传输所述寻呼消息的寻呼窄带;
在所确定的N个时间区间中的可用子帧和所确定的寻呼窄带上重复传输所述寻呼消息;
其中,N为大于等于2的正整数。
上述方案中,对于频分双工FDD系统,所述可用子帧为子帧0、子帧4、子帧5和子帧9,或者,为至少包含有子帧0、子帧4、子帧5和子帧9的所有可获得子帧;对于时分双工TDD系统,所述可用子帧为子帧0、子帧1、子帧5和子帧6,或者,为至少包含有子帧0、子帧1、子帧5和子帧6的所有可获得子帧;其中,所述所有可获得子帧包括非组播和广播单频网络MBSFN下行子帧和没有组播业务传输的MBSFN子帧。
上述方案中,所述获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N,包括:通过广播的寻呼系统参数指示给UE的方式来获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N;或者,根据所述可用子帧隐式确定寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N。
上述方案中,所述根据UE标识,确定用于重复传输所述寻呼消息的N个时间区间,包括:将每一个寻呼周期大小P_Cycle范围内的所有时间区间以N个连续的时间区间为粒度进行分块;根据所述UE标识,确定所有时间区间分块中的一个;用于重复传输所述寻呼消息的N个时间区间为所述分块包含的N个连续的时间区间;其中,所述P_Cycle取值是通过广播的系统参数或者UE专有的信令指示给UE的方式来获取的,并且为具有最大覆盖增强等级的寻呼消息的重复传输所占用的时间区间数的整数倍。
上述方案中,所述根据UE标识,确定所有时间区间分块中的一个,包括:根据UE的标识,确定第一个时间区间;确定开始于所述第一个时间区间的连续N个时间区间为重复传输所述寻呼消息的时间区间分块。
上述方案中,所述根据UE的标识,确定第一个时间区间的计算表达式 如下:TIN_1mod P_Cycle=N*(UE_ID mod(P_Cycle/N));或者,TIN_1_Temp mod P_Cycle=N*(UE_ID mod(P_Cycle/N)),TIN_1=(TIN_1_Temp+TIN_O*N)mod P_Cycle;其中,P_Cycle表示寻呼周期的大小,UE_ID表示UE的标识,TIN_1表示所述第一个时间区间的编号,TIN_O表示UE专有的时间区间分块的偏置,及TIN_1_Temp表示用于计算所述TIN_1的中间变量。
上述方案中,在所确定的N个时间区间中的可用子帧和所确定的寻呼窄带上重复传输所述寻呼消息的过程中,所述方法还包括:若在所确定的寻呼窄带上传输具有不同覆盖增强等级的寻呼消息的情况下出现冲突时,则任意保留具有其中一个覆盖增强等级的寻呼消息;或者,将所述不同覆盖增强等级的寻呼消息分类为唯一的具有最大覆盖增强等级的寻呼消息和至少一个具有不同于所述最大覆盖增强等级的覆盖增强等级的寻呼消息;将所述至少一个具有不同于所述最大覆盖增强等级的覆盖增强等级的寻呼消息与所述唯一的具有最大覆盖增强等级的寻呼消息加以合成,得到合成后的寻呼消息;之后,在所述唯一的具有最大覆盖增强等级的寻呼消息所对应的N个时间区间中传输所述合成后的寻呼消息。
上述方案中,所述寻呼窄带是可用于重复传输寻呼消息的窄带集合中的一个;其中,通过预先设置方式或者通过广播的寻呼系统参数指示给UE的方式来获取所述窄带集合;所述窄带集合独立于系统信息块SIB和主信息块MIB窄带集合,或者,与SIB和MIB窄带集合重叠。
上述方案中,当寻呼消息与MIB或SIB1传输出现冲突时,放弃所述寻呼消息传输;当寻呼消息与除SIB1以外的其它SIB传输出现冲突时,放弃所述寻呼消息或者所述其它SIB的传输。
上述方案中,所述重复传输所述寻呼消息的方式为窄带跳频方式。
上述方案中,所述方法还包括:对于FDD系统,当所述窄带跳频方式 开启时,若所述可用子帧为子帧0、子帧4、子帧5和子帧9,则确定对应于所述寻呼消息的新的帧定时。
上述方案中,所述方法还包括:当所述窄带跳频方式开启时,若所述寻呼消息与除所述寻呼消息之外的广播和/或单播数据采用重叠的窄带集合,则通过所述寻呼消息与除所述寻呼消息之外的广播和/或单播数据共享跳频间隔的方式重复传输所述寻呼消息。
上述方案中,所述窄带跳频方式开启时,跳频间隔等于M个时间区间;其中,M是大于等于1的自然数,并且满足所述寻呼消息在任一覆盖增强等级下的重复传输所占用的时间区间数N是M的整数倍;所述跳频间隔是预先设置的,或者,是通过广播的系统参数指示给UE的。
上述方案中,具有第X覆盖增强等级的寻呼消息的重复传输所占用的时间区间数是具有第Y覆盖增强等级的寻呼消息的重复传输所占用的时间区间数的整数倍;其中,所述X和Y是大于等于1的正整数,并且X小于Y。
上述方案中,所述方法还包括:当所述可用子帧是至少包含所述4个子帧的所有可获得子帧时,通过广播系统参数指示给UE的方式来获取所述所有可获得子帧;其中,所述广播的系统参数包括MBSFN子帧配置参数,存在组播业务传输的MBSFN子帧配置参数以及TDD子帧配置参数。
上述方案中,所述重复传输所述寻呼消息的过程具有如下特征:占用所述寻呼窄带内的所有的物理资源,调制方式为四相移位键控QPSK,及固定或受限制的传输块大小TBS。
本发明实施例还提供一种计算机存储介质,所述计算机存储介质中存储有计算机可执行指令,所述计算机可执行指令用于执行本发明实施例所述数据传输方法。
本发明实施例还提供一种数据传输装置,所述装置包括:获取模块、 确定模块和传输模块;
所述获取模块,配置为获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N;
所述确定模块,配置为根据用户设备UE标识,确定用于重复传输所述寻呼消息的N个时间区间;根据所述覆盖增强等级确定用于重复传输所述寻呼消息的寻呼窄带;
所述传输模块,配置为在所确定的N个时间区间中的可用子帧和所确定的寻呼窄带上重复传输所述寻呼消息;
其中,N为大于等于2的正整数。
上述方案中,所述获取模块,还配置为通过广播的寻呼系统参数指示给UE的方式来获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N;或者,根据所述可用子帧隐式确定寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N。
上述方案中,所述确定模块,还配置为将每一个寻呼周期大小P_Cycle范围内的所有时间区间以N个时间区间为粒度进行分块;根据所述UE标识,确定所有时间区间分块中的一个;用于重复传输所述寻呼消息的N个时间区间为所述分块包含的N个连续的时间区间;其中,所述Paging Cycle取值是通过广播的系统参数,或者UE专有的信令所指示的,且为最大覆盖增强等级的寻呼消息的重复传输所占用的时间区间数的整数倍。
上述方案中,所述确定模块,还配置为根据UE的标识,确定第一个时间区间;确定开始于所述第一个时间区间的连续N个时间区间为重复传输所述寻呼消息的时间区间分块。
上述方案中,所述传输模块,还配置为若在所确定的寻呼窄带上传输具有不同覆盖增强等级的寻呼消息的情况下出现冲突时,则任意保留具有其中一个覆盖增强等级的寻呼消息;或者,将所述不同覆盖增强等级的寻 呼消息分类为唯一的具有最大覆盖增强等级的寻呼消息和至少一个具有不同于所述最大覆盖增强等级的覆盖增强等级的寻呼消息;将所述至少一个具有不同于所述最大覆盖增强等级的覆盖增强等级的寻呼消息与所述唯一的具有最大覆盖增强等级的寻呼消息加以合成,得到合成后的寻呼消息;之后,在所述唯一的具有最大覆盖增强等级的寻呼消息所对应的N个时间区间中传输所述合成后的寻呼消息。
上述方案中,所述传输模块用于重复传输所述寻呼消息的方式为窄带跳频方式。
上述方案中,所述确定模块,还配置为对于FDD系统,当所述窄带跳频方式开启时,若所述可用子帧为子帧0、子帧4、子帧5和子帧9,则确定对应于所述寻呼消息的新的帧定时。
上述方案中,所述传输模块,还配置为当所述窄带跳频方式开启时,若所述寻呼消息与除所述寻呼消息之外的广播和/或单播数据采用重叠的窄带集合,则通过所述寻呼消息与除所述寻呼消息之外的广播和/或单播数据共享跳频间隔的方式重复传输所述寻呼消息。
本发明实施例所提供的数据传输方法、装置及计算机存储介质,获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N;根据UE标识,确定用于重复传输所述寻呼消息的N个时间区间;根据所述覆盖增强等级确定用于重复传输所述寻呼消息的寻呼窄带;在所确定的N个时间区间中的可用子帧和所确定的寻呼窄带上重复传输所述寻呼消息;其中,N为大于等于2的正整数。如此,能够极大地减少寻呼消息的传输延时,避免被重复传输的寻呼消息对无线资源的长时间占用,从而提高无线资源的协同调度能力,减小对其它广播和/或单播数据的正常传输的影响。
附图说明
图1为本发明实施例数据传输方法的实现流程示意图;
图2为本发明实施例所述确定用于重复传输寻呼消息的N个时间区间的实现流程示意图;
图3为本发明实施例寻呼窄带与SIB或MIB窄带关系的示意图;
图4为相关技术中无法接收除子帧0/4/5/9以外其它寻呼子帧的示意图;
图5为本发明实施例对应于寻呼消息的新的帧定时的示意图;
图6为本发明实施例数据传输装置的组成结构示意图;
图7为本发明应用示例一根据UE标识,确定寻呼消息重复传输资源的示意图;
图8为本发明应用示例二寻呼消息与单播数据共享跳频间隔的示意图。
具体实施方式
在本发明实施例中,获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N;根据UE标识,确定用于重复传输所述寻呼消息的N个时间区间;根据所述覆盖增强等级确定用于重复传输所述寻呼消息的寻呼窄带;在所确定的N个时间区间中的可用子帧和所确定的寻呼窄带上重复传输所述寻呼消息。
其中,N为大于等于2的正整数。
下面结合附图及具体实施例对本发明再作进一步详细的说明。
图1为本发明实施例数据传输方法的实现流程示意图,如图1所示,本发明实施例数据传输方法包括:
步骤S101:获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N;
其中,N为大于等于2的正整数。
具体地,获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N,包括:通过广播的寻呼系统参数指示给UE的方式来获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N;或者,根据可用于 寻呼消息传输的子帧(可用子帧)隐式确定寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N。例如,可以将上述可用于寻呼消息传输的子帧可能的不同示例与所述覆盖增强等级下的重复传输所占用的时间区间数N绑定,以使所有可用于寻呼消息传输的子帧或可用子帧的不同示例中的一个(例如子帧0/4/5/9)始终对应于唯一的时间区间数。
其中,所述时间区间包括但不限于:无线帧、半帧。考虑到寻呼消息的重复传输存在潜在的较大时间跨度,无线帧和半帧可能更适合用作寻呼消息时域资源的分配的最小粒度。
这里,具有第X覆盖增强等级的寻呼消息的重复传输所占用的时间区间数是具有第Y覆盖增强等级的寻呼消息的重复传输所占用的时间区间数的整数倍;其中,所述X和Y是大于等于1的正整数,并且X小于Y。也就是说,较大覆盖增强等级的寻呼消息的重复传输所占用的时间区间数是较小覆盖增强等级的寻呼消息的重复传输所占用的时间区间数的整数倍。上述特征或方法有利于不同覆盖增强等级的寻呼消息的资源对齐,从而有利于提高无线资源使用效率。
其中,所述覆盖增强等级又被称为重复等级,等级越高表示寻呼消息所需要的覆盖增强程度越大。
步骤S102:根据UE标识,确定用于重复传输所述寻呼消息的N个时间区间;
具体地,所述方法包括:
将每一个寻呼周期大小P_Cycle范围内的所有时间区间以N个连续的时间区间为粒度进行分块(即每一个分块包括N个连续的时间区间);
根据所述UE标识,确定所有时间区间分块中的一个;
用于重复传输所述寻呼消息的N个时间区间为所述分块包含的N个连续的时间区间。该方法可以实现不同的时间区间分块用于重复传输不同UE 的寻呼消息。其中,所述P_Cycle取值是通过广播的系统参数或者UE专有的信令指示给UE的方式来获取的,并且为具有最大覆盖增强等级的寻呼消息的重复传输所占用的时间区间数的整数倍。也就是说,通过广播的系统参数通知公有的P_Cycle,但不排除后续利用UE专有信令针对具体UE进行P_Cycle调整的可能性。如此,有利于降低复杂度和便于资源对齐。
具体地,如图2所示,所述根据UE标识,确定所有时间区间分块中的一个分块,包括:
步骤S1021:根据所述UE的标识,确定第一个时间区间;
这里,根据所述UE的标识确定所述第一个时间区间的计算表达式如下:
TIN_1mod P_Cycle=N*(UE_ID mod(P_Cycle/N));
或者,TIN_1_Temp mod P_Cycle=N*(UE_ID mod(P_Cycle/N)),TIN_1=(TIN_1_Temp+TIN_O*N)mod P_Cycle;
其中,P_Cycle表示寻呼周期的大小,UE_ID表示UE的标识,TIN_1表示所述第一个时间区间的编号,TIN_O表示UE专有的时间区间分块的偏置,它的取值范围是0至Q-1,其中Q为所述P_Cycle包括的大小为N的时间区间分块数,及TIN_1_Temp表示用于计算所述TIN_1的中间变量。这里,其中,所述TIN_O可以通过UE专有的射频资源控制(Radio Resource Control,RRC)信令指示给UE,所述TIN_O的引入进一步增加了重复传输寻呼消息时资源分配的灵活性。
步骤S1022:确定开始于所述第一个时间区间的连续N个时间区间为重复传输所述寻呼消息的时间区间分块。
步骤S103:根据所述覆盖增强等级确定用于重复传输所述寻呼消息的寻呼窄带;
具体地,所述方法包括:
将所有覆盖等级分为K组,所述K为大于等于1的正整数,表示可用于重复传输所述寻呼消息的窄带数,以及,所述K个不同覆盖等级组与K个不同寻呼窄带一一对应,其中,所述所有覆盖等级的分组信息和不同分组所对应的寻呼窄带信息是预先设置的或是通过广播的系统参数指示给UE的;
用于重复传输所述寻呼消息的寻呼窄带是所述覆盖等级所处的覆盖增强等级组所对应的寻呼窄带。该方法可以实现任一用于重复传输所述寻呼消息的寻呼窄带至少对应一个覆盖增强等级。例如,设想可用于重复传输所述寻呼消息的窄带数为两个(K等于2),以及总共存在四个覆盖等级,则可以预先设置或通过广播的系统参数指示以下内容:所述四个覆盖等级被分为两个覆盖等级组,第一覆盖等级组包括第一和第二覆盖等级,第二覆盖等级组包括第三和第四覆盖等级,第一和第二覆盖等级组分别对应于第一和第二寻呼窄带。
这里,所述寻呼窄带是可用于重复传输寻呼消息的窄带集合中的一个;
其中,通过预先设置方式或者通过广播的寻呼系统参数指示给UE的方式来获取所述窄带集合;所述窄带集合独立于系统信息块(SIB)和主信息块(Master Information Block,MIB)窄带集合,或者,与系统信息块SIB和主信息块MIB窄带集合重叠。
其中,所述重叠包括完全重叠和部分重叠。
其中,当寻呼消息与MIB或SIB1传输出现冲突时,放弃寻呼消息传输;
当寻呼消息与除SIB1以外的其它SIB传输出现冲突时,放弃所述寻呼消息或者所述其它SIB的传输。
具体地,所述寻呼窄带的集合,包括:
独立于SIB和MIB窄带集合。
举例来说,如附图3(a)所示,可用于寻呼消息、SIB和MIB传输的窄带为唯一一个,所述寻呼窄带与SIB和MIB各自采用独立的窄带,三个窄带之间没有任何冲突,但是考虑到小带宽场景可能没有足够多的可获得窄带数目,所以该方式可能不适用于小系统带宽,如系统带宽取值为3MHz和1.4MHz的情况。
或者,独立于MIB窄带集合且与SIB窄带集合重叠。
例如,如图3(b)所示,寻呼消息和SIB采用相同,即完全重叠的两个窄带并且独立于用于MIB重复传输的中心窄带。如图3(c)所示,SIB传输采用除中心窄带以外的两个窄带,寻呼消息采用除中心窄带以外的两个窄带中的一个,中心窄带用于MIB重复传输,此时,寻呼窄带与SIB窄带集合是部分重叠的。在这种情况下,当寻呼消息与SIB1传输出现冲突时,放弃当前所述寻呼消息的传输,当所述寻呼消息与除SIB1以外其它SIB传输出现冲突时,放弃当前所述寻呼消息或SIB的传输;考虑到上述放弃寻呼消息传输的可能性,会导致寻呼性能下降或延时增加,所以该方式不适用于1.4MHz的小系统带宽。
或者,独立于SIB窄带集合且与MIB窄带集合重叠。
举例来说,如图3(d)所示,寻呼消息和MIB共享唯一的中心窄带,除中心窄带以外的两个窄带用于SIB传输。如图3(e)所示,寻呼消息和MIB共享唯一的中心窄带,除中心窄带以外的两个窄带中的一个用于SIB传输。在这种情况下,当寻呼消息与MIB传输出现冲突时,当前寻呼传输被放弃;考虑到上述放弃寻呼传输的可能性,寻呼性能或延时可能被导致。该方式同样不适用于1.4MHz系统带宽,并且不同的MIB覆盖增强方案也可能导致不同寻呼与MIB传输的冲突概率。
或者,与系统信息块和系统信息块共享的唯一窄带。
举例来说,如图3(f)所示,可用于寻呼消息、SIB和MIB传输的窄 带为唯一一个,并且寻呼消息与SIB和MIB共享唯一的中心窄带,除中心窄带以外的两个窄带不再用于SIB和寻呼消息的传输。在这种情况下,当寻呼消息与MIB或SIB1传输出现冲突时,放弃所述寻呼消息的传输;当寻呼消息与除了SIB1以外其它SIB传输出现冲突时,放弃所述寻呼消息或SIB的传输;考虑到上述放弃寻呼消息传输的可能性,寻呼性能会下降或延时可能被增加;并且不同MIB或SIB的覆盖增强方案可能导致不同寻呼与MIB或SIB传输的冲突概率。该方式的唯一优势是它可适用于1.4MHz系统带宽。
步骤S104:在所确定的N个时间区间中的可用子帧和所确定的寻呼窄带上重复传输所述寻呼消息。
具体地,对于频分双工(Frequency Division Duplex,FDD)系统,所述可用子帧为子帧0、子帧4、子帧5和子帧9,或者,为至少包含有子帧0、子帧4、子帧5和子帧9的所有可获得子帧;对于时分双工(Time Division Duplex,TDD)系统,所述可用子帧为子帧0、子帧1、子帧5和子帧6,或者,为至少包含有子帧0、子帧1、子帧5和子帧6的所有可获得子帧;其中,所述所有可获得子帧包括非组播和广播单频网络(Multicast and Broadcast Single Frequency Network,MBSFN)下行子帧和没有组播业务传输的MBSFN子帧。
这里,当所述可用子帧是至少包含所述4个子帧的所有可获得子帧时,通过广播的系统参数指示给UE的方式来获取所述所有可获得子帧;其中,所述广播的系统参数包括MBSFN子帧配置参数,存在组播业务传输的MBSFN子帧配置参数以及TDD子帧配置参数。具体地,对于FDD系统,所述所有可获得子帧是除了存在组播业务传输的MBSFN子帧以外的其它子帧;对于TDD系统,所述所有可获得子帧是除了存在组播业务传输的MBSFN子帧和TDD上行子帧以外的其它子帧。对于FDD和TDD系统, 非MBSFN下行子帧分别至少包括子帧0/4/5/9和子帧0/1/5/6。
这里,为减少寻呼传输延时,对于寻呼消息的覆盖增强传输,最大的寻呼子帧资源应该优先被采用;具体地,考虑到对于FDD系统,子帧0/4/5/9始终不会被配置为MBSFN子帧,对于TDD系统,子帧0/1/5/6始终非上行子帧且不会被配置为MBSFN子帧,所以对于FDD和TDD系统,可用于传输寻呼消息的子帧至少应该分别包括子帧0/4/5/9和子帧0/1/5/6。
此外,如果UE能够获取当前小区的子帧配置参数(例如上述MBSFN子帧配置参数,存在组播业务传输的MBSFN子帧配置参数以及TDD子帧配置参数等),则除上述4个子帧以外的其它子帧也可用于寻呼消息的重复传输,最终所有可获得子帧可用于寻呼消息的重复传输。例如,当处于空闲(Idle)态的UE进入新的小区时,通常将提前唤醒接收该小区的系统信息(包括当前小区的子帧配置参数),只是具体的接收或唤醒时刻依赖于UE实现。然而,考虑到从处于空闲态的UE进入新的小区开始一直到获取该小区的系统信息,可能存在或多或少的时延,所以在上述时延期间UE可能无法接收所有的寻呼子帧。举例来说,如图4所示,当前小区传输的寻呼消息的子帧除了包含子帧0/4/5/9以外,还包括子帧1和子帧6,但是由于UE在唤醒去接收寻呼消息的时刻,没有及时的获取当前小区的子帧配置信息,从而无法获知子帧1和子帧6也被用于寻呼消息传输,所以UE可能无法接收或利用在子帧1和子帧6传输的寻呼消息。另外,如果具有不同寻呼子帧数的不同小区具有不同的寻呼重复传输持续时间,相应寻呼重复传输的合并过程可能也将受到影响。但是,如果设想实际网络中不同小区通常使用相同或统一寻呼相关的系统参数并且不会频繁改变,上述问题可能是不严重的或不需要特别考虑。
这里,所述寻呼消息的重复传输具有以下特征:1)占用重复传输寻呼消息的窄带内的所有的物理资源;2)调制方式为四相移位键控(Quadrature  Phase Shift Keying,QPSK);3)固定或受限制的传输块大小(Transport Block Size,TBS)。其中,当受限制的TBS被应用时,UE在接收寻呼消息时需要监控或盲检测不同的TBS。需要说明的是,虽然UE可以监控或盲检测不同的TBS,但是考虑到窄带传输和UE缓存大小的限制,优选UE始终监控或检测唯一的覆盖增强等级。
在一实施例中,所述方法还包括:在所确定的N个时间区间中的可用子帧和所确定的寻呼窄带上重复传输所述寻呼消息的过程中,若在所确定的寻呼窄带上传输具有不同覆盖增强等级的寻呼消息的情况下出现冲突时,则任意保留具有其中一个覆盖增强等级的寻呼消息;或者,将所述不同覆盖增强等级的寻呼消息分类为唯一的具有最大覆盖增强等级的寻呼消息和至少一个具有不同于所述最大覆盖增强等级的覆盖增强等级的寻呼消息;将所述至少一个具有不同于所述最大覆盖增强等级的覆盖增强等级的寻呼消息与所述唯一的具有最大覆盖增强等级的寻呼消息加以合成,得到合成后的寻呼消息;之后,在所述唯一的具有最大覆盖增强等级的寻呼消息所对应的N个时间区间中传输所述合成后的寻呼消息。
另外,需要补充说明的是,当所述寻呼消息通过下行控制信息(Downlink Control Information,DCI)跨子帧调度情况下,所述DCI数据可以沿用上述寻呼消息的传输方式;其中,所述DCI数据承载于增强下行控制信道(Enhanced PDCCH,EPDCCH)。举例来说,如果通过DCI的跨子帧调度方式被实施,则所述寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数等价于上述DCI在覆盖增强等级下的重复传输所占用的时间区间数,所述重复传输寻呼消息的窄带等价于重复传输DCI数据的EPDCCH窄带。对于FDD系统,如果子帧0/4/5/9被用于寻呼消息的重复传输,则等价于DCI的重复传输也必须被限制在子帧0/4/5/9范围内。
进一步地,所述重复传输所述寻呼消息的方式可以为窄带跳频方式。 具体地,在所述窄带跳频方式下,需要开启窄带跳频方式,其跳频间隔等于M个时间区间。其中,M是大于等于1的自然数,并且满足所述寻呼消息在任一覆盖增强等级下的重复传输所占用的时间区间数N是M的整数倍;所述跳频间隔是预先设置的,或者,是通过广播的系统参数指示给UE的。在实际应用中,不管时间区间内可用于寻呼消息重复传输的子帧为什么情况,不同覆盖增强等级下的寻呼消息的重复传输通常始终是占用N个时间区间,所以应该优选定义用于重复传输寻呼消息的跳频间隔始终为M个时间区间。
在一实施例中,当所述重复传输所述寻呼消息的方式为窄带跳频方式时,所述方法还包括:对于FDD系统,当所述窄带跳频方式开启时,若所述可用子帧为子帧0、子帧4、子帧5和子帧9,则确定对应于所述寻呼消息的新的帧定时。举例来说,如图5所示,新的无线帧子帧0对应于现有无线帧子帧4,新的无线帧与现有无线帧定时存在3个子帧的偏置。这样,当不同窄带传输的跳转(Retuning)在无线帧,或者半帧的边界发生时,三个子帧的持续时间可用于Retuning操作,以确保足够的Retuning时间。
在一实施例中,当所述重复传输所述寻呼消息的方式为跳频方式时,所述方法还包括:当所述窄带跳频方式开启时,若所述寻呼消息与除所述寻呼消息之外的广播和/或单播数据采用重叠的窄带集合,则通过所述寻呼消息与除所述寻呼消息之外的广播和/或单播数据共享跳频间隔的方式重复传输所述寻呼消息。如此,能够进一步确保资源对齐,从而有利于提高资源利用效率。
在跳频间隔范围内,在UE侧的多子帧信道估计可以被应用以改善信道估计性能,即使不是跳频间隔内的所有子帧都被用于寻呼消息传输。
需要说明的是,如无特别说明,本发明实施例所述寻呼窄带为物理上的窄带。其中,在开启用于重复传输所述寻呼消息的窄带跳频功能的情况 下,对于不同的时间区间,所述寻呼消息可以在相同或不同的物理窄带传输。
如此,通过本发明实施例所述数据传输方法,能够极大地减少寻呼消息的传输延时,避免被重复传输的寻呼消息对无线资源的长时间占用,从而提高无线资源的协同调度能力,减小对其它广播和/或单播数据的正常传输的影响。
本发明实施例还提供一种计算机存储介质,所述计算机存储介质中存储有计算机可执行指令,所述计算机可执行指令用于执行本发明实施例所述数据传输方法。
图6为本发明实施例数据传输装置的组成结构示意图,如图6所示,所述装置包括获取模块601、确定模块602和传输模块603;
所述获取模块601,配置为获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N;其中,N为大于等于2的正整数。
具体地,所述获取模块601通过广播的寻呼系统参数指示给UE的方式来获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N;或者,根据所述可用子帧隐式确定寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N;
所述确定模块602,配置为将每一个寻呼周期大小P_Cycle范围内的所有时间区间以N个时间区间为粒度进行分块;根据所述UE标识,确定所有时间区间分块中的一个;用于重复传输所述寻呼消息的N个时间区间为所述分块包含的N个连续的时间区间;其中,所述Paging Cycle取值是通过广播的系统参数,或者UE专有的信令所指示的,且为最大覆盖增强等级的寻呼消息的重复传输所占用的时间区间数的整数倍。
这里,所述确定模块602配置为根据UE标识,确定所有时间区间分块中的一个,包括:
根据所述覆盖增强等级和UE的标识,确定第一个时间区间;确定开始于所述第一个时间区间的连续N个时间区间为重复传输所述寻呼消息的时间区间分块。
所述传输模块603,配置为在所确定的N个时间区间中的可用子帧和所确定的寻呼窄带上重复传输所述寻呼消息;
在一应用实例中,如图6所示,所述传输模块603,还配置为若在所确定的寻呼窄带上传输具有不同覆盖增强等级的寻呼消息的情况下出现冲突时,则任意保留具有其中一个覆盖增强等级的寻呼消息;或者,将所述不同覆盖增强等级的寻呼消息分类为唯一的具有最大覆盖增强等级的寻呼消息和至少一个具有不同于所述最大覆盖增强等级的覆盖增强等级的寻呼消息;将所述至少一个具有不同于所述最大覆盖增强等级的覆盖增强等级的寻呼消息与所述唯一的具有最大覆盖增强等级的寻呼消息加以合成,得到合成后的寻呼消息;之后,在所述唯一的具有最大覆盖增强等级的寻呼消息所对应的N个时间区间中传输所述合成后的寻呼消息。
这里,所述传输模块603用于重复传输所述寻呼消息的方式可以为窄带跳频方式。
在一应用实例中,如图6所示,所述确定模块602,还配置为对于FDD系统,当所述窄带跳频方式开启时,若所述可以子帧为子帧0、子帧4、子帧5和子帧9,则确定对应于所述寻呼消息的新的帧定时。
在一应用实例中,如图6所示,所述传输模块603,还配置为当所述窄带跳频方式开启时,若所述寻呼消息与除所述寻呼消息之外的广播和/或单播数据采用重叠的窄带集合,则通过所述寻呼消息与除所述寻呼消息之外的广播和/或单播数据共享跳频间隔的方式重复传输所述寻呼消息。
本发明实施例所述装置中的各模块均可以通过装置中的处理器实现,也可以通过具体的逻辑电路实现;比如,在实际应用中,可由位于装置的 中央处理器(Central Processing Unit,CPU)、微处理器(Micro Processor Unit,MPU)、数字信号处理器(Digital Signal Processor,DSP)、或现场可编程门阵列(Field Programmable Gate Array,FPGA)等实现。
下面结合具体的应用示例对本发明实施例所述数据传输方法加以进一步地详细描述。
图7为本发明应用示例一根据覆盖增强等级和UE标识,确定寻呼消息重复传输资源的示意图;其中,所述寻呼消息重复传输资源包括用于重复传输所述寻呼消息的N个时间区间和寻呼窄带。
如附图7所示,用于寻呼消息重复传输的窄带包括两个,即第1窄带和第2窄带,同时覆盖增强等级共有4个,其中,第1窄带用于第1和第2覆盖增强等级寻呼消息的传输,第2窄带用于第3和第4覆盖增强等级寻呼消息的传输。
对于第1窄带和第1覆盖增强等级,在每一个寻呼周期大小P_Cycle范围内的所有时间区间以N1(在第1覆盖增强等级下重复传输的寻呼消息所占用的时间区间数)个时间区间为粒度进行分块(每个分块包括N1个时间区间),最终的时间区间分块数是16个,其中,第7分块用于以第1覆盖增强等级向UE1传输寻呼消息,第8分块用于以第1覆盖增强等级向UE2传输寻呼消息。
对于第1窄带和第2覆盖增强等级,在每一个寻呼周期大小P_Cycle范围内的所有时间区间以N2(在第2覆盖增强等级下重复传输的寻呼消息所占用的时间区间数)个时间区间为粒度进行分块(每个分块包括N2个时间区间),最终的时间区间分块数是8个,其中,第3分块用于以第2覆盖增强等级向UE3传输寻呼消息,第6分块用于以第2覆盖增强等级向UE4传输寻呼消息。
对于第2窄带和第3覆盖增强等级,在每一个寻呼周期大小P_Cycle 范围内的所有时间区间以N3(在第3覆盖增强等级下重复传输的寻呼消息所占用的时间区间数)个时间区间为粒度进行分块(每个分块包括N3个时间区间),最终的时间区间分块数是4个,其中,第1分块用于以第3覆盖增强等级向UE5传输寻呼消息。
对于第2窄带和第4覆盖增强等级,在每一个寻呼周期大小P_Cycle范围内的所有时间区间以N4(在第4覆盖增强等级下重复传输的寻呼消息所占用的时间区间数)个时间区间为粒度进行分块(每个分块包括N4个时间区间),最终的时间区间分块数是2个,其中,第2分块用于以第4覆盖增强等级向UE6传输寻呼消息。
图8为本发明应用示例二寻呼消息与单播数据共享跳频间隔的示意图。
如图8所示,用于寻呼消息重复传输的窄带对应两个物理窄带,即第1物理窄带和第2物理窄带,用于单播数据重复传输的窄带对应与寻呼消息相同的两个物理窄带,同时寻呼消息与单播数据的跳频间隔相同,具体的跳频间隔大小为M个时间区间。其中,在第一M个时间区间内,重复传输的寻呼消息占用第1物理窄带,重复传输的单播数据占用第2物理窄带,在第二M个时间区间内,重复传输的寻呼消息占用第2物理窄带,重复传输的单播数据占用第1物理窄带,以此类推。
本发明实施例所记载的技术方案之间,在不冲突的情况下,可以任意组合。
本领域内的技术人员应明白,本发明的实施例可提供为方法、系统、或计算机程序产品。因此,本发明可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且,本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序 产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。
工业实用性
本发明实施例所述数据传输方法,获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N;根据UE标识,确定用于重复传输所述寻呼消息的N个时间区间;根据所述覆盖增强等级确定用于重复传输所述寻呼消息的寻呼窄带;在所确定的N个时间区间中的可用子帧和所确定的寻呼窄带上重复传输所述寻呼消息;其中,N为大于等于2的正整数。如此, 能够极大地减少寻呼消息的传输延时,避免被重复传输的寻呼消息对无线资源的长时间占用,从而提高无线资源的协同调度能力,减小对其它广播和/或单播数据的正常传输的影响。

Claims (25)

  1. 一种数据传输方法,所述方法包括:
    获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N;
    根据用户设备UE标识确定用于重复传输所述寻呼消息的N个时间区间;
    根据所述覆盖增强等级确定用于重复传输所述寻呼消息的寻呼窄带;
    在所确定的N个时间区间中的可用子帧和所确定的寻呼窄带上重复传输所述寻呼消息;
    其中,N为大于等于2的正整数。
  2. 根据权利要求1所述的方法,其中,
    对于频分双工FDD系统,
    所述可用子帧为子帧0、子帧4、子帧5和子帧9,或者,为至少包含有子帧0、子帧4、子帧5和子帧9的所有可获得子帧;
    对于时分双工TDD系统,
    所述可用子帧为子帧0、子帧1、子帧5和子帧6,或者,为至少包含有子帧0、子帧1、子帧5和子帧6的所有可获得子帧;
    其中,所述所有可获得子帧包括非组播和广播单频网络MBSFN下行子帧和没有组播业务传输的MBSFN子帧。
  3. 根据权利要求1所述的方法,其中,所述获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N,包括:
    通过广播的寻呼系统参数指示给UE的方式来获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N;或者,根据所述可用子帧隐式确定寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N。
  4. 根据权利要求1所述的方法,其中,所述根据UE标识,确定用于重复传输所述寻呼消息的N个时间区间,包括:
    将每一个寻呼周期大小P_Cycle范围内的所有时间区间以N个连续的时间区间为粒度进行分块;
    根据所述UE标识,确定所有时间区间分块中的一个;
    用于重复传输所述寻呼消息的N个时间区间为所述分块包含的N个连续的时间区间;其中,所述P_Cycle取值是通过广播的系统参数或者UE专有的信令指示给UE的方式来获取的,并且为具有最大覆盖增强等级的寻呼消息的重复传输所占用的时间区间数的整数倍。
  5. 根据权利要求4所述的方法,其中,所述根据UE标识,确定所有时间区间分块中的一个,包括:
    根据UE的标识,确定第一个时间区间;
    确定开始于所述第一个时间区间的连续N个时间区间为重复传输所述寻呼消息的时间区间分块。
  6. 根据权利要求5所述的方法,其中,所述根据UE的标识,确定第一个时间区间的计算表达式如下:
    TIN_1mod P_Cycle=N*(UE_ID mod(P_Cycle/N));
    或者,TIN_1_Temp mod P_Cycle=N*(UE_ID mod(P_Cycle/N)),TIN_1=(TIN_1_Temp+TIN_O*N)mod P_Cycle;
    其中,P_Cycle表示寻呼周期的大小,UE_ID表示UE的标识,TIN_1表示所述第一个时间区间的编号,TIN_O表示UE专有的时间区间分块的偏置,及TIN_1_Temp表示用于计算所述TIN_1的中间变量。
  7. 根据权利要求1至4任一项所述的方法,其中,在所确定的N个时间区间中的可用子帧和所确定的寻呼窄带上重复传输所述寻呼消息的过程中,所述方法还包括:
    若在所确定的寻呼窄带上传输具有不同覆盖增强等级的寻呼消息的情况下出现冲突时,则任意保留具有其中一个覆盖增强等级的寻呼消息;
    或者,将所述不同覆盖增强等级的寻呼消息分类为唯一的具有最大覆盖增强等级的寻呼消息和至少一个具有不同于所述最大覆盖增强等级的覆盖增强等级的寻呼消息;将所述至少一个具有不同于所述最大覆盖增强等级的覆盖增强等级的寻呼消息与所述唯一的具有最大覆盖增强等级的寻呼消息加以合成,得到合成后的寻呼消息;之后,在所述唯一的具有最大覆盖增强等级的寻呼消息所对应的N个时间区间中传输所述合成后的寻呼消息。
  8. 根据权利要求1至4任一项所述的方法,其中,
    所述寻呼窄带是可用于重复传输寻呼消息的窄带集合中的一个;
    其中,通过预先设置方式或者通过广播的寻呼系统参数指示给UE的方式来获取所述窄带集合;所述窄带集合独立于系统信息块SIB和主信息块MIB窄带集合,或者,与SIB和MIB窄带集合重叠。
  9. 根据权利要求8所述的方法,其中,
    当寻呼消息与MIB或SIB1传输出现冲突时,放弃所述寻呼消息传输;
    当寻呼消息与除SIB1以外的其它SIB传输出现冲突时,放弃所述寻呼消息或者所述其它SIB的传输。
  10. 根据权利要求1至4任一项所述的方法,其中,所述重复传输所述寻呼消息的方式为窄带跳频方式。
  11. 根据权利要求10所述的方法,其中,所述方法还包括:
    对于FDD系统,当所述窄带跳频方式开启时,若所述可用子帧为子帧0、子帧4、子帧5和子帧9,则确定对应于所述寻呼消息的新的帧定时。
  12. 根据权利要求10所述的方法,其中,所述方法还包括:
    当所述窄带跳频方式开启时,若所述寻呼消息与除所述寻呼消息之外的广播和/或单播数据采用重叠的窄带集合,则通过所述寻呼消息与除所述寻呼消息之外的广播和/或单播数据共享跳频间隔的方式重复传输所述寻呼 消息。
  13. 根据权利要求10所述的方法,其中,
    所述窄带跳频方式开启时,跳频间隔等于M个时间区间;
    其中,M是大于等于1的自然数,并且满足所述寻呼消息在任一覆盖增强等级下的重复传输所占用的时间区间数N是M的整数倍;所述跳频间隔是预先设置的,或者,是通过广播的系统参数指示给UE的。
  14. 根据权利要求1至4任一项所述的方法,其中,具有第X覆盖增强等级的寻呼消息的重复传输所占用的时间区间数是具有第Y覆盖增强等级的寻呼消息的重复传输所占用的时间区间数的整数倍;其中,所述X和Y是大于等于1的正整数,并且X小于Y。
  15. 根据权利要求2所述的方法,其中,所述方法还包括:
    当所述可用子帧是至少包含所述4个子帧的所有可获得子帧时,通过广播系统参数指示给UE的方式来获取所述所有可获得子帧;
    其中,所述广播的系统参数包括MBSFN子帧配置参数,存在组播业务传输的MBSFN子帧配置参数以及TDD子帧配置参数。
  16. 根据权利要求1至4任一项所述的方法,其中,所述重复传输所述寻呼消息的过程具有如下特征:占用所述寻呼窄带内的所有的物理资源,调制方式为四相移位键控QPSK,及固定或受限制的传输块大小TBS。
  17. 一种数据传输装置,所述装置包括:获取模块、确定模块和传输模块;
    所述获取模块,配置为获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N;
    所述确定模块,配置为根据用户设备UE标识,确定用于重复传输所述寻呼消息的N个时间区间;根据所述覆盖增强等级确定用于重复传输所述寻呼消息的寻呼窄带;
    所述传输模块,配置为在所确定的N个时间区间中的可用子帧和所确定的寻呼窄带上重复传输所述寻呼消息;
    其中,N为大于等于2的正整数。
  18. 根据权利要求17所述的装置,其中,
    所述获取模块,还配置为通过广播的寻呼系统参数指示给UE的方式来获取寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N;或者,根据所述可用子帧隐式确定寻呼消息在覆盖增强等级下的重复传输所占用的时间区间数N。
  19. 根据权利要求17所述的装置,其中,
    所述确定模块,还配置为将每一个寻呼周期大小P_Cycle范围内的所有时间区间以N个时间区间为粒度进行分块;根据所述UE标识,确定所有时间区间分块中的一个;用于重复传输所述寻呼消息的N个时间区间为所述分块包含的N个连续的时间区间;其中,所述Paging Cycle取值是通过广播的系统参数,或者UE专有的信令所指示的,且为最大覆盖增强等级的寻呼消息的重复传输所占用的时间区间数的整数倍。
  20. 根据权利要求19所述的装置,其中,
    所述确定模块,还配置为根据UE的标识,确定第一个时间区间;确定开始于所述第一个时间区间的连续N个时间区间为重复传输所述寻呼消息的时间区间分块。
  21. 根据权利要求17至19任一项所述的装置,其中,
    所述传输模块,还配置为若在所确定的寻呼窄带上传输具有不同覆盖增强等级的寻呼消息的情况下出现冲突时,则任意保留具有其中一个覆盖增强等级的寻呼消息;或者,将所述不同覆盖增强等级的寻呼消息分类为唯一的具有最大覆盖增强等级的寻呼消息和至少一个具有不同于所述最大覆盖增强等级的覆盖增强等级的寻呼消息;将所述至少一个具有不同于所 述最大覆盖增强等级的覆盖增强等级的寻呼消息与所述唯一的具有最大覆盖增强等级的寻呼消息加以合成,得到合成后的寻呼消息;之后,在所述唯一的具有最大覆盖增强等级的寻呼消息所对应的N个时间区间中传输所述合成后的寻呼消息。
  22. 根据权利要求17至19任一项所述的装置,其中,所述传输模块用于重复传输所述寻呼消息的方式为窄带跳频方式。
  23. 根据权利要求22所述的装置,其中,
    所述确定模块,还配置为对于FDD系统,当所述窄带跳频方式开启时,若所述可用子帧为子帧0、子帧4、子帧5和子帧9,则确定对应于所述寻呼消息的新的帧定时。
  24. 根据权利要求22所述的装置,其中,
    所述传输模块,还配置为当所述窄带跳频方式开启时,若所述寻呼消息与除所述寻呼消息之外的广播和/或单播数据采用重叠的窄带集合,则通过所述寻呼消息与除所述寻呼消息之外的广播和/或单播数据共享跳频间隔的方式重复传输所述寻呼消息。
  25. 一种计算机存储介质,所述计算机存储介质中存储有计算机可执行指令,所述计算机可执行指令用于执行权利要求1至16任一项所述数据传输方法。
PCT/CN2015/097261 2015-04-09 2015-12-14 一种数据传输方法、装置及计算机存储介质 WO2016161816A1 (zh)

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