WO2016165428A1 - 消息的资源配置方法及装置 - Google Patents

消息的资源配置方法及装置 Download PDF

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Publication number
WO2016165428A1
WO2016165428A1 PCT/CN2016/070731 CN2016070731W WO2016165428A1 WO 2016165428 A1 WO2016165428 A1 WO 2016165428A1 CN 2016070731 W CN2016070731 W CN 2016070731W WO 2016165428 A1 WO2016165428 A1 WO 2016165428A1
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Prior art keywords
message
type
frequency band
level
paging
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PCT/CN2016/070731
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English (en)
French (fr)
Inventor
刘锟
戴博
夏树强
鲁照华
陈宪明
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 WO2016165428A1 publication Critical patent/WO2016165428A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/535Allocation or scheduling criteria for wireless resources based on resource usage policies

Definitions

  • the present invention relates to the field of communications, and in particular to a resource allocation method and apparatus for a message.
  • MTC Machine Type Communication
  • MTC User Equipment MTC User Equipment
  • M2M Machine to Machine
  • M2M Machine to Machine
  • the M2M devices currently deployed on the market are mainly based on the GSM (Global System of Mobile communication) system.
  • GSM Global System of Mobile communication
  • M2M multi-class data services based on LTE/LTE-A will also be more attractive. Only when the cost of the LTE-M2M device can be lower than the MTC terminal of the GSM system can the M2M service be truly transferred from the GSM to the LTE system.
  • the main alternative methods for reducing the cost of the MTC user terminal include: reducing the number of terminal receiving antennas, reducing the baseband processing bandwidth of the terminal, reducing the peak rate supported by the terminal, adopting a half-duplex mode, and the like.
  • the cost reduction means that the performance is degraded.
  • the demand for the LTE/LTE-A system cell coverage cannot be reduced. Therefore, the MTC terminal with low-cost configuration needs to take some measures to meet the coverage performance requirements of the existing LTE terminal.
  • the MTC terminal may be located in a basement, a corner, etc., and the scene is worse than that of a normal LTE UE. In order to compensate for the decrease in coverage caused by the penetration loss, some MTC UEs need higher performance improvement.
  • the location information of the physical resource block (PRB) occupied by the Random Access Response (RAR, also referred to as the Msg2 message) in the LTE/LTE-A system is included in the downlink control information (Downlink).
  • the Control Information (referred to as DCI) is transmitted through the Physical Downlink Control Channel (PDCCH).
  • the DCI information further includes a 16-bit Cyclic Redundancy Check (CRC), and the CRC further uses a 16-bit Random Access Radio Network Temporary Identity (Random Access Radio Network Temporary Identity, Abbreviated as RA-RNTI), the scrambling method is:
  • the UE receives the RAR message and obtains uplink time synchronization and uplink resources.
  • the RAR message is sent to the UE itself rather than to other UEs because there is a possibility that different UEs transmit the same random access sequence on the same time-frequency resource, so that they The same RAR is received through the same RA-RNTI.
  • the UE is also not aware of whether other UEs are using the same resources for random access. To this end, the UE needs to resolve such random access collisions through subsequent Msg3 and Msg4 messages.
  • Msg3 is the first message based on uplink scheduling and transmitted on the PUSCH by using the HARQ (Hybrid Automatic Repeat request) mechanism.
  • the RRC Connection Request message is transmitted in the Msg3. If different UEs receive the same RAR message, they will obtain the same uplink resource and send the Msg3 message at the same time.
  • a UE-specific ID is carried in the MSG3 to distinguish different UEs. In the case of initial access, this ID may be the S-TMSI of the UE (if present) or a randomly generated 40-bit value.
  • the UE immediately starts the contention cancellation timer after the Msg3 message is sent (and then restarts the timer every time the Msg3 is retransmitted), and the UE needs to listen to the conflict resolution message (ContentionResolution) that the eNodeB returns to itself during this time. Msg4 message).
  • the UE If the UE receives the Msg4 message returned by the eNodeB and the UE ID carried in the Msg3 is reported to the eNodeB, the UE considers that it has won the random access. Conflict, random access is successful.
  • the temporary C-RNTI obtained in the RAR message is set as its own C-RNTI. Otherwise, the UE considers that the access fails and re-transmits the random access retransmission process.
  • the PRACH of the LTE/LTE-A system is enhanced, but the transmission of the message in the existing LTE/LTE-A system cannot ensure the normal access of the MTC UE.
  • LTE/LTE-A system after PRACH enhancement is enhanced.
  • An embodiment of the present invention provides a resource configuration method and apparatus for a message, so as to at least solve the LTE/LTE-A system after the message transmission in the LTE/LTE-A system in the related art cannot ensure that the MTC UE accesses the PRACH enhanced normally. problem.
  • a resource configuration method for a message including: configuring, according to at least one quantity below, a frequency band resource used for transmitting a first type of message by using a preset rule: a first type of node
  • the number N of frequency bands configured to transmit the first type of message where N is a natural number greater than or equal to 1; the number M of the first level configured by the first type of nodes, where M is a natural number greater than or equal to 1.
  • the first type of message includes at least one of the following: a first sub-type message, including: a random access response message RAR and/or a paging message Paging; and a second sub-type message, including: a RAR sent by using a control channel Scheduling message and/or scheduling message of Paging sent through the control channel; third sub-category message, including: a second type of section sent through the control channel A scheduling message of a configuration message of a dedicated control information search space and/or a scheduling message of a reconfiguration message of a second type of node-specific control information transmitted through a control channel.
  • a first sub-type message including: a random access response message RAR and/or a paging message Paging
  • a second sub-type message including: a RAR sent by using a control channel Scheduling message and/or scheduling message of Paging sent through the control channel
  • third sub-category message including: a second type of section sent through the control channel
  • the first level includes at least one of the following: an coverage enhancement level, a random access channel PRACH coverage enhancement level, and a PRACH repeated transmission level.
  • the method further comprises: dividing the second type of node into different first levels.
  • the preset rule includes: configuring different frequency bands for the first type of messages corresponding to different first levels.
  • configuring different frequency bands for the first type of messages corresponding to the different first levels includes: in order from small to large according to the first index value of the frequency band, in order from small to large according to the second index value.
  • the first type of message corresponding to the first level of the arrangement configures the frequency band.
  • the preset rule includes: configuring the same frequency band for the first type of messages corresponding to the at least two different first levels.
  • At least two different first levels do not include the highest of the M first levels.
  • the first type of message configuring the same frequency band satisfies at least one of the following conditions: the first type of message configuring the same frequency band supports time division multiplexing TDM and/or frequency division multiplexing FDM in the same frequency band; configuring the same frequency band
  • the detection time window length of the first type of message satisfies a first preset condition, wherein the first preset condition comprises: a detection time window length of each type of message configuring the same frequency band is greater than a first detection time window length, wherein The length of the first detection time window is the detection time window length of the first type of message in the same frequency band of the configuration in the case of occupying one frequency band by itself.
  • the preset rule includes: configuring the same frequency band for the first type of messages corresponding to the M first levels.
  • the first type of message configuring the same frequency band satisfies one of the following conditions: the first type of message configuring the same frequency band supports TDM and/or FDM in the same frequency band; and the detection time window length of the first type of message configured in the same frequency band
  • the second preset condition is met, wherein the second preset condition includes: a detection time window length of each type of message configuring the same frequency band is greater than a second detection time window length, wherein the second detection time window length is the configuration The detection time window length of the first type of message of the same frequency band in the case of occupying one frequency band by itself.
  • the preset rule includes: configuring at least one frequency band for the first type of message corresponding to each first level.
  • At least one frequency band is configured for the first type of message corresponding to each first level by using any one of the following methods: determining, according to the frequency band in which the random access sequence PRACH Preamble sent by the second type of node is located, a frequency band allocated by the first type of message corresponding to a level; dividing the PRACH Preamble into a plurality of first sets, and allocating different frequency bands for the first type of messages corresponding to different first sets; configuring a first level The time-frequency resources of the random access channel PRACH are divided into a plurality of second sets, and different frequency bands are allocated for the first type of messages corresponding to different second sets.
  • the number of the plurality of first sets and/or the plurality of second sets is the same as the number of frequency bands configured by the first type of messages corresponding to one first level.
  • the method further includes: transmitting, by the RAR, the frequency band information occupied by the RAR in the scheduling message of the RAR;
  • the method further includes: transmitting the frequency band information occupied by the paging to be carried in the scheduling message of the Paging; and in the first type of the message, the second type of the node is sent through the control channel.
  • the method further includes: the frequency band information occupied by the configuration configuration message is carried in the scheduling message of the configuration message; and the first type of message is the second type sent through the control channel.
  • the method further includes: the frequency band information occupied by the sending the reconfiguration message is carried in the scheduling message of the reconfiguration message.
  • the preset rule includes: configuring different frequency bands for different first type messages.
  • the preset rule further includes: configuring different control channels for different first-type messages.
  • the preset rule further includes: configuring different control channels for sending the first type of paging message and the second type of paging message, where
  • the first type of Paging message is any one of the following types: a Paging message indicating a system message update, a Paging message of an earthquake tsunami warning system ETWS, a Paging message of a commercial mobile phone early warning system CMAS, and a second type of Paging message is a Paging message other than the first type. Paging messages outside the message.
  • the different control channels include at least one of: a control channel with different control information transmission formats; and a control channel with different control information sizes.
  • the preset rule further includes: the frequency band resource utilized by the first type of message is the same as the frequency band resource of one of the following messages: RAR; conflict resolution Message Msg4.
  • the preset rule further includes: the frequency band resource utilized by the first type of message is configured by at least one of the following messages: RAR; conflict resolution message Msg4; system information.
  • the preset rule further includes: determining, according to the frequency band in which the PRACH Preamble sent by the second type of node is located, the frequency band resource used in sending the first type of message. .
  • the weight of the search space of the second type of node-specific control information sent through the control channel is In the case of the scheduling message of the new configuration message, the preset rule further includes: the frequency band resource used in the first type of message transmission is the same as the frequency band configured in the second type of node-specific control information search space.
  • the first type of node includes at least one of the following: a macro base station Macrocell; a micro base station Microcell; a pico base station Picocell; a femto base station Femtocell; a low power node LPN; and a relay station Relay.
  • the second type of node is more than one terminal or more than one terminal group.
  • a resource configuration apparatus for a message including: a configuration module, configured to perform, according to at least one quantity below, a frequency band resource used for transmitting a first type of message by using a preset rule.
  • the first type of node is the number N of frequency bands configured to send the first type of message, where N is a natural number greater than or equal to 1; the number M of the first level configured by the first type of node, where M is greater than or equal to 1 Natural number.
  • a storage medium configured to store a computer program for performing a resource configuration method of any of the above messages.
  • the frequency band resources used for transmitting the first type of message are configured according to at least one quantity and the preset rule: the first type of node is the number N of frequency bands configured for sending the first type of message, Wherein, N is a natural number greater than or equal to 1; the number M of the first level configured by the first type of node, wherein M is a natural number greater than or equal to 1, solving the problem that the information used in the LTE/LTE-A system in the related art cannot be used.
  • FIG. 1 is a flowchart of a resource configuration method of a message according to a first embodiment of the present invention
  • FIG. 2 is a structural block diagram of a resource configuration apparatus for a message according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a resource configuration method of a message according to the first embodiment of the present invention. As shown in FIG. 1, the method includes the following steps:
  • Step S102 The frequency band used for transmitting the first type of message according to at least one of the following numbers and by using a preset rule Resource configuration: the first type of node is the number N of frequency bands configured to send the first type of message, where N is a natural number greater than or equal to 1; the first type of node is configured with a quantity M of the first level, where M is greater than A natural number equal to 1.
  • the first type of message may include at least one of the following: a first sub-type message, including: a random access response message RAR and/or a paging message Paging; and a second sub-type message, including: RAR sent through the control channel Scheduling messages and/or scheduling messages of Paging sent through the control channel; third sub-type messages, including: scheduling messages of configuration messages of the second type of node-specific control information search space transmitted through the control channel and/or by control The second type of node-specific control information of the channel is sent to the scheduling message of the reconfiguration message of the search space.
  • a first sub-type message including: a random access response message RAR and/or a paging message Paging
  • a second sub-type message including: RAR sent through the control channel Scheduling messages and/or scheduling messages of Paging sent through the control channel
  • third sub-type messages including: scheduling messages of configuration messages of the second type of node-specific control information search space transmitted through the control channel and/or by control
  • the first level may include at least one of the following: an coverage enhancement level, a random access channel PRACH coverage enhancement level, and a PRACH repeated transmission level.
  • the frequency band resources used for transmitting the first type of message are configured according to at least one quantity and by a preset rule: the first type of node is the number N of frequency bands configured to send the first type of message, where N is a natural number greater than or equal to 1; the number M of the first level configured by the first type of node, where M is a natural number greater than or equal to 1, which solves the problem that the information used in the LTE/LTE-A system in the related art cannot be guaranteed.
  • the MTC UE normally accesses the LTE/LTE-A system after the PRACH enhancement, and further enhances the design of the message in the LTE/LTE-A system, thereby ensuring that the MTC UE can normally access the LTE/LTE-A system.
  • the method further comprises: dividing the second type of node into different first levels.
  • the preset rule includes: configuring different frequency bands for the first type of messages corresponding to different first levels.
  • optionally configuring different frequency bands for the first type of messages corresponding to the different first levels includes: according to the first index value of the frequency band, the order of the first index is in the order of small to large, followed by the second The first type of message configuration band corresponding to the first level in which the index values are arranged in a small to large order.
  • the preset rule includes: configuring the same frequency band for the first type of messages corresponding to at least two different levels.
  • N is less than M and N is greater than or equal to 2
  • at least two different first levels do not include the highest level among the M first levels.
  • the first type of message configuring the same frequency band satisfies at least one of the following conditions: the first type of message configuring the same frequency band supports time division multiplexing TDM in the same frequency band And/or frequency division multiplexing FDM; the detection time window length of the first type of message configuring the same frequency band satisfies a first preset condition, wherein the first preset condition comprises: each first type of message configuring the same frequency band The length of the detection time window is greater than the length of the first detection time window, wherein the length of the first detection time window is the detection time window length of the first type of message in the same frequency band of the configuration in the case of occupying one frequency band by itself.
  • the preset rule includes: configuring the same frequency band for the first type of messages corresponding to the M first levels.
  • the first type of message configuring the same frequency band satisfies one of the following conditions: the first type of message configuring the same frequency band supports TDM and/or FDM in the same frequency band; The detection time window length of the first type of message that is configured in the same frequency band meets a second preset condition, where the second preset condition includes: a detection time window length of each type of message configuring the same frequency band is greater than a second detection time window The length, wherein the second detection time window length is a detection time window length of the first type of message in which the same frequency band is configured to occupy one frequency band by itself.
  • the preset rule includes: configuring, for each type of message corresponding to each first level, at least one frequency band in a case where N is greater than M.
  • At least one frequency band is configured for the first type of message corresponding to each first level by using any one of the following methods: determining, according to the frequency band in which the random access sequence PRACH Preamble sent by the second type of node is located, a frequency band allocated by the first type of message corresponding to a level; dividing the PRACH Preamble into a plurality of first sets, and allocating different frequency bands for the first type of messages corresponding to different first sets; configuring a first level The time-frequency resources of the random access channel PRACH are divided into a plurality of second sets, and different frequency bands are allocated for the first type of messages corresponding to different second sets.
  • the number of the plurality of first sets and/or the plurality of second sets is the same as the number of frequency bands configured by the first type of messages corresponding to one first level.
  • the method further includes: transmitting, by the RAR, the frequency band information occupied by the RAR in the scheduling message of the RAR;
  • the method further includes: transmitting the frequency band information occupied by the paging to be carried in the scheduling message of the Paging; and in the first type of the message, the second type of the node is sent through the control channel.
  • the method further includes: the frequency band information occupied by the configuration configuration message is carried in the scheduling message of the configuration message; and the first type of message is the second type sent through the control channel.
  • the method further includes: the frequency band information occupied by the sending the reconfiguration message is carried in the scheduling message of the reconfiguration message.
  • the preset rule includes: configuring different frequency bands for different first type messages.
  • the preset rule further includes: configuring different control channels for different first-type messages.
  • the preset rule further includes: configuring different control channels for sending the first type of paging message and the second type of paging message, wherein
  • the first type of paging message is any one of the following: a Paging message indicating system message update, a Paging message of an earthquake tsunami warning system ETWS, a Paging message of a CMAS Commercial Mobile Alert Service, and a second type of Paging
  • the message is a Paging message other than the first type of paging message.
  • the different control channels include at least one of: a control channel with different control information transmission formats; and a control channel with different control information sizes.
  • the preset rule further includes: the frequency band resource utilized by the first type of message is the same as the frequency band resource of one of the following messages: RAR; conflict resolution Message Msg4.
  • the preset rule further includes: the frequency band resource utilized by the first type of message is configured by at least one of the following messages: RAR; conflict resolution message Msg4; system information.
  • the preset rule further includes: determining, according to the frequency band of the PRACH Preamble sent by the second type of node, the frequency band resource used in the first type of message transmission. .
  • the preset rule further includes: when the first type of message is sent The utilized band resources are the same as those configured by the second type of node-specific control information search space.
  • the first type of node may include at least one of the following: a macro base station Macrocell; a micro base station Microcell; a pico base station Picocell; a femto base station Femtocell; a low power node LPN; and a relay station Relay.
  • the second type of node is more than one terminal or more than one terminal group.
  • the following is a resource configuration method of a message according to a second embodiment of the present invention.
  • a base station eNB
  • UEs User Equipments
  • the working bandwidth of the NB UE is relatively small.
  • the NB UE only occupies a small part of the system bandwidth. In this way, the system bandwidth can be divided into working bandwidths of multiple NB UEs, and the working bandwidth of each NB UE is recorded as one NB.
  • the eNB supports Coverage Enhancement UE for NB UE.
  • the eNB supports a total of 3 Coverage Enhancement Levels (CELs), which are CEL0, CEL1, and CEL2, respectively.
  • CELs Coverage Enhancement Levels
  • UE0 is an NB UE of CEL0
  • UE1 is an NB UE of CEL1
  • UE2 is an NB UE of CEL2.
  • the eNB allocates PRACH resources to it, including a random access sequence (Preamble) used for transmitting random access signaling and a time-frequency resource used by the Preamble, where NB is the smallest allocation unit.
  • Preamble random access sequence
  • UE0 to UE2 After transmitting the Preamble on the PRACH according to the configuration information of the eNB, UE0 to UE2 need to receive the random access response information (RAR message) sent by the eNB. It should be noted that UE0 to UE2 need to first know the NB index where the RAR message is sent, and then can detect the RAR message on the corresponding NB. In this embodiment, the eNB configures the NB UE to be available. There are three NBs for receiving RAR, which are NB Index 0, NB Index 5, and NB Index 10. Then, NB Index0 can be assigned to CEL0 by default, NB Index 5 is assigned to CEL1, and NB Index 10 is assigned to CEL2.
  • the resource configuration rule of the message in this embodiment is the same as the preset rule in the first embodiment: in the case that M is equal to N, different frequency bands are configured for the first type of messages corresponding to different first levels.
  • NB Index 0 and 2 can be defaulted.
  • NB Index 4 and 6 are assigned to CEL1
  • NB Indexes 8 and 10 are assigned to CEL2.
  • the following is a resource configuration method of a message according to a third embodiment of the present invention.
  • a base station eNB
  • UEs User Equipments
  • the working bandwidth of the NB UE is relatively small, for example, it occupies only a small part of the system bandwidth. In this way, the system bandwidth can be divided into working bandwidths of multiple NB UEs, and the working bandwidth of each NB UE is recorded as one NB.
  • the eNB supports coverage enhancement (Coverage Enhancement UE) for the NB UE.
  • the eNB supports a total of three coverage enhancement levels (CEL), namely CEL0, CEL1 and CEL2.
  • CEL coverage enhancement levels
  • UE0 is an NB UE of CEL0
  • UE1 is an NB UE of CEL1
  • UE2 is an NB UE of CEL2.
  • the eNB allocates PRACH resources to it, including a random access sequence (Preamble) used for transmitting random access signaling and a time-frequency resource used by the Preamble, where NB is the smallest allocation unit.
  • Preamble random access sequence
  • the UE0 to the UE2 need to receive the random access response information (RAR message) sent by the eNB.
  • RAR message random access response information
  • UE0 to UE2 need to first know the NB index where the RAR message is sent, and then can detect the RAR message on the corresponding NB.
  • the eNB configures two NBs that the NB UE can use to receive the RAR, which are NB Index 0 and NB Index 5, respectively.
  • NB Index 0 can be assigned to CEL0 and CEL1
  • NB Index 5 can be assigned to CEL2.
  • the same frequency band is configured for the first type of messages corresponding to at least two different levels.
  • the CEL level of the UE1 is CEL1, which is higher than the CEL0 of the UE0. Therefore, the time domain resource configured by the UE1 RAR message is more than the UE0. More configuration. UE0 and UE1 detect the RAR message on the time domain resource corresponding to the CEL, respectively.
  • the time domain resources configured when the RAR of the UE1 is configured are more configured than the UE0. More. For UE0, since the RAR message may be transmitted on the time domain resources corresponding to CEL0 and CEL1, UE0 needs to detect the RAR message on the time domain resources corresponding to CEL0 and CEL1, respectively.
  • the following is a resource configuration method of a message according to a fourth embodiment of the present invention.
  • a base station eNB
  • UEs User Equipments
  • the working bandwidth of the NB UE is relatively small, for example, it occupies only a small part of the system bandwidth. In this way, the system bandwidth can be divided into working bandwidths of multiple NB UEs, and the working bandwidth of each NB UE is recorded as one NB.
  • the eNB supports coverage enhancement (Coverage Enhancement UE) for the NB UE.
  • the eNB supports a total of three coverage enhancement levels (CEL), namely CEL0, CEL1 and CEL2.
  • CEL coverage enhancement levels
  • UE0 is an NB UE of CEL0
  • UE1 is an NB UE of CEL1
  • UE2 is an NB UE of CEL2.
  • the eNB allocates PRACH resources to it, including a random access sequence (Preamble) used for transmitting random access signaling and a time-frequency resource used for transmitting the Preamble, and NB is the minimum allocation unit in the frequency domain.
  • Preamble random access sequence
  • NB is the minimum allocation unit in the frequency domain.
  • the UE0 to the UE2 need to receive the random access response information (RAR message) sent by the eNB.
  • RAR message random access response information
  • UE0 to UE2 need to first know the NB index where the RAR message is sent, and then can detect the RAR message on the corresponding NB.
  • the eNB configures two NBs that the NB UE can use to receive the RAR, which are NB Index 0 and NB Index 5, respectively.
  • NB Index 0 can be assigned to CEL0 and CEL1
  • NB Index 5 can be assigned to CEL2.
  • UE0 to UE2 detect RAR messages on the NBs configured by their own CEL levels. Since both UE0 and UE1 are configured to detect the RAR message on the NB Index 0, and the CEL level of the UE1 is CEL1, which is higher than the CEL0 of the UE0, the time domain resources configured by the RAR of the UE1 are more configured than the UE0. On the NB Index 0, the number of time domain resources configured during the RAR message transmission of the CEL1 is divided into multiple RAR transmission periods.
  • the RAR message is first detected according to the number of time domain resources configured during the RAR transmission of the CEL0 at the beginning of the foregoing period, and if the detection is not successful, the time domain resources configured when the received REL message of the CEL0 is transmitted are reserved, and The time domain resource configured when the RAR of the CEL1 is transmitted in the above period is further received, and the RAR message is detected according to CEL1.
  • the UE0 in the next cycle also detects the RAR message according to the above scheme. That is, the preset rule in the first embodiment is that the time-frequency resources of the random access channel PRACH configured for one first level are divided into multiple second sets, and are corresponding to different second sets. One type of message allocates different frequency bands.
  • the following is a resource configuration method of a message according to a fifth embodiment of the present invention.
  • a base station eNB
  • UEs User Equipments
  • the working bandwidth of the NB UE is relatively small, for example, it occupies only a small part of the system bandwidth. In this way, the system bandwidth can be divided into working bandwidths of multiple NB UEs, and the working bandwidth of each NB UE is recorded as one NB.
  • the eNB supports coverage enhancement (Coverage Enhancement UE) for the NB UE.
  • the eNB supports a total of three coverage enhancement levels (CEL), namely CEL0, CEL1 and CEL2.
  • CEL coverage enhancement levels
  • UE0 is an NB UE of CEL0
  • UE1 is an NB UE of CEL1
  • UE2 is an NB UE of CEL2.
  • the eNB allocates PRACH resources to it, including a random access sequence (Preamble) used for transmitting random access signaling and a time-frequency resource used for transmitting the Preamble, and NB is the minimum allocation unit in the frequency domain.
  • Preamble random access sequence
  • NB is the minimum allocation unit in the frequency domain.
  • the UE0 to the UE2 need to receive the random access response information RAR message sent by the eNB. It should be noted that UE0 to UE2 need to first know the NB index where the RAR message is sent, and then can detect the RAR message on the corresponding NB. In this embodiment, the eNB configures four NBs that the NB UE can use to receive the RAR, which are NB Index 0, NB Index 5, NB Index 10, and NB Index 15, respectively. Then NB Index 0 is assigned to CEL0, NB Index 5 is assigned to CEL1, NB Index 10 is assigned to CEL2, and NB Index 15 is assigned to CEL2.
  • the UE0 to UE2 detect RAR messages on the NBs configured by their own CEL levels. Since CEL2 is configured with two NBs of NB Index 10 and NB Index 15, UE2 needs to determine which NB the RAR sent to itself is on.
  • the PRACH Preamble is divided into two sets, and the NBs in which the RAR messages corresponding to the different sets are located are different, and the UE2 determines the NBs to which the RARs sent to itself are located according to the set to which the Preamble sent by the UE belongs. That is, the preset rule in the first embodiment is that the PRACH Preamble is divided into a plurality of first sets, and different frequency bands are allocated for the first type of messages corresponding to different first sets.
  • the frequency band resources used in the first type of message transmission are configured according to at least one of the following numbers and by a preset rule (different embodiments adopt different Preset rule):
  • the first type of node is the number N of frequency bands configured to send the first type of message, where N is a natural number greater than or equal to 1; the number M of the first level configured by the first type of node, where M is A natural number greater than or equal to 1 solves the problem that the RAR message in the LTE/LTE-A system in the related art cannot guarantee the normal access of the MTC UE to the LTE/LTE-A system after the PRACH enhancement, and thus implements the LTE/LTE-
  • the enhanced design of the RAR message in the A system ensures that the MTC UE can normally access the LTE/LTE-A system.
  • the resource allocation method for the RAR message in the second to fifth embodiments described above is also applicable to the resource allocation of the scheduling message of the RAR message.
  • the foregoing embodiments further include the following steps: the RAR resource is learned by the RAR scheduling message DCI, and then decoded. The RAR message.
  • the resource allocation of the scheduling message of the RAR message based on the same method as in the second embodiment can be performed by the following The sixth embodiment will be described.
  • the resource allocation of the scheduling message of the RAR message is performed based on the same method as the third to fifth embodiments, and details are not described herein again.
  • the following is a resource configuration method of a message according to a sixth embodiment of the present invention.
  • a base station eNB
  • UEs User Equipments
  • the working bandwidth of the NB UE is relatively small, for example, it occupies only a small part of the system bandwidth. In this way, the system bandwidth can be divided into working bandwidths of multiple NB UEs, and the working bandwidth of each NB UE is recorded as one NB.
  • the eNB supports coverage enhancement (Coverage Enhancement UE) for the NB UE.
  • the eNB supports a total of three coverage enhancement levels (CEL), namely CEL0, CEL1 and CEL2.
  • CEL coverage enhancement levels
  • UE0 is an NB UE of CEL0
  • UE1 is an NB UE of CEL1
  • UE2 is an NB UE of CEL2.
  • the eNB allocates PRACH resources to it, including a random access sequence (Preamble) used for transmitting random access signaling and a time-frequency resource used for transmitting the Preamble, and NB is the minimum allocation unit in the frequency domain.
  • Preamble random access sequence
  • NB is the minimum allocation unit in the frequency domain.
  • the UE0 to the UE2 After transmitting the Preamble on the PRACH according to the configuration information of the eNB, the UE0 to the UE2 need to receive the random access response information (RAR message) sent by the eNB.
  • RAR message random access response information
  • UE0 to UE2 need to first know the NB index where the RAR message is sent, and then can detect the RAR message on the corresponding NB.
  • the resource sent by the RAR message is based on Downlink Control Information (DCI) scheduling indication.
  • DCI Downlink Control Information
  • the eNB configures three NBs that the NB UE can use to receive the scheduling message DCI of the RAR, which are NB Index 0, NB Index 5, and NB Index 10, respectively. Then, NB Index 0 can be assigned to CEL0 by default, NB Index 5 is assigned to CEL1, and NB Index 10 is assigned to CEL2.
  • the UE0 to the UE2 respectively detect the scheduling message DCI of the RAR on the NB configured by the CEL level corresponding to the UE, and obtain the RAR resource through the DCI, thereby decoding the RAR message.
  • the resource configuration rule of the message in this embodiment is the same as the preset rule in the first embodiment: in the case that M is equal to N, different frequency bands are configured for the first type of messages corresponding to different first levels.
  • the method includes: configuring, according to the first index of the frequency band, a first-type message configuration frequency band corresponding to the first level of the second index value in a small to large order.
  • the first type of message is a scheduling message of the RAR message.
  • the frequency band resources used for the first type of message transmission are configured according to at least one quantity, and the preset rules are used by different preset rules: the first type of node is the first one.
  • the number N of frequency bands configured by the class message where N is a natural number greater than or equal to 1; the number M of the first level configured by the first type of nodes, where M is a natural number greater than or equal to 1, solving the related art in LTE
  • the scheduling message of the RAR message in the LTE/A system cannot guarantee the problem that the MTC UE normally accesses the LTE/LTE-A system after the PRACH enhancement, and thus implements the scheduling message for the RAR message in the LTE/LTE-A system.
  • the design is enhanced to ensure that the MTC UE can access the LTE/LTE-A system normally.
  • the resource configuration method for the RAR message in the foregoing second to fifth embodiments is also applicable to the resource configuration of the paging message.
  • the only difference is that the resource configuration method of the paging message cancels the following process:
  • the UE0 to the UE2 transmit the Preamble on the PRACH according to the configuration information of the eNB.
  • the resource configuration of the paging message is performed based on the same method as in the second embodiment (excluding the UE0 to the UE2 transmitting the Preamble on the PRACH according to the configuration information of the eNB), which can be explained by the following seventh embodiment.
  • the resource configuration of the paging message is performed based on the same method as the third to fifth embodiments (excluding the UE0 to the UE2 transmitting the Preamble on the PRACH according to the configuration information of the eNB), and details are not described herein.
  • the following is a resource configuration method of a message according to a seventh embodiment of the present invention.
  • a base station eNB
  • a plurality of terminals User Equipment, UE for short
  • UE User Equipment
  • the working bandwidth of the NB UE is relatively small, for example, it occupies only a small part of the system bandwidth. In this way, the system bandwidth can be divided into working bandwidths of multiple NB UEs, and the working bandwidth of each NB UE is recorded as one NB.
  • the eNB supports coverage enhancement (Coverage Enhancement UE) for the NB UE.
  • coverage enhancement Coverage Enhancement UE
  • the eNB supports a total of three coverage enhancement levels (CEL), namely CEL0, CEL1 and CEL2. The higher the CEL level, the larger the coverage enhancement target value.
  • UE0 is an NB UE of CEL0
  • UE1 is an NB UE of CEL1
  • UE2 is an NB UE of CEL2.
  • UE0 to UE2 receive a paging message (Paging) sent by the eNB.
  • the resource sent by the Paging message is based on Downlink Control Information (DCI) scheduling indication.
  • DCI Downlink Control Information
  • UE0 to UE2 need to know the NB index where the Paging message is sent.
  • the eNB configures three NBs that the NB UE can use to receive the paging message, which are NB Index 0, NB Index 5, and NB Index 10.
  • NB Index 0 is assigned to CEL0
  • NB Index 5 is assigned to CEL1
  • NB Index 10 is assigned to CEL2.
  • the UE0 to the UE2 detect the Paging message on the NB configured by the CEL level corresponding to the UE.
  • the resource configuration rule of the message in this embodiment is the same as the preset rule in the first embodiment: in the case that M is equal to N, different frequency bands are configured for the first type of messages corresponding to different first levels.
  • the frequency band resources used for the first type of message transmission are configured according to at least one quantity, and the preset rules are used by different preset rules: the first type of node is the first one.
  • the number N of frequency bands configured by the class message where N is a natural number greater than or equal to 1; the number M of the first level configured by the first type of nodes, where M is a natural number greater than or equal to 1, solving the related art in LTE
  • the Paging message in the LTE-A system cannot guarantee the normal access of the MTC UE to the LTE/LTE-A system after the PRACH enhancement, and thus enhances the design of the Paging message in the LTE/LTE-A system, thereby ensuring
  • the MTC UE can access the LTE/LTE-A system normally.
  • the resource allocation method for the RAR message in the second to fifth embodiments is also applicable to the resource allocation of the scheduling message of the paging message.
  • the difference is that the resource configuration method of the scheduling message of the paging message is cancelled as follows.
  • the resource allocation of the scheduling message of the paging message is performed based on the same method as in the second embodiment.
  • the UE0 to the UE2 are configured to send the Preamble on the PRACH according to the configuration information of the eNB, and the resource of the paging is learned by the scheduling message DCI of the paging message. And decoding the Paging message, which can be explained by the following eighth embodiment.
  • the resource allocation of the scheduling message of the paging message is performed based on the same method as the third to fifth embodiments, respectively. (The UE0 to the UE2 cancel the transmission of the Preamble on the PRACH according to the configuration information of the eNB, and the scheduling message DCI of the paging message is added. Paging resources, and then decoding the Paging message), this article will not repeat them.
  • the following is a resource configuration method of a message according to an eighth embodiment of the present invention.
  • a base station eNB
  • UEs User Equipments
  • the working bandwidth of the NB UE is relatively small, for example, it occupies only a small part of the system bandwidth. In this way, the system bandwidth can be divided into working bandwidths of multiple NB UEs, and the working bandwidth of each NB UE is recorded as one NB.
  • the eNB supports coverage enhancement (Coverage Enhancement UE) for the NB UE.
  • coverage enhancement Coverage Enhancement UE
  • the eNB supports a total of three coverage enhancement levels (CEL), namely CEL0, CEL1 and CEL2. The higher the CEL level, the larger the coverage enhancement target value.
  • UE0 is an NB UE of CEL0
  • UE1 is an NB UE of CEL1
  • UE2 is an NB UE of CEL2.
  • UE0 to UE2 receive a paging message (Paging) sent by the eNB.
  • the resource sent by the Paging message is based on Downlink Control Information (DCI) scheduling indication.
  • DCI Downlink Control Information
  • UE0 to UE2 need to know the NB index where the scheduling message DCI of Paging is transmitted.
  • the eNB configures three NBs available to the NB UE to receive the paging message DCI of the paging, namely NB Index 0, NB Index 5, and NB Index 10.
  • NB Index 0 can be assigned to CEL0 by default
  • NB Index 5 is assigned to CEL1
  • NB Index 10 is assigned to CEL2.
  • the UE0 to the UE2 respectively detect the scheduling message DCI of the Paging on the NB configured by the CEL level, and the Paging resource is obtained through the DCI, and the Paging message is decoded.
  • the resource configuration rule of the message in this embodiment is the same as the preset rule in the first embodiment: in the case that M is equal to N, different frequency bands are configured for the first type of messages corresponding to different first levels.
  • the method includes: configuring, according to the first index of the frequency band, a first-type message configuration frequency band corresponding to the first level of the second index value in a small to large order.
  • the first type of message is a scheduling message of Paging.
  • the frequency band resources used for the first type of message transmission are configured according to at least one quantity, and the preset rules are used by different preset rules: the first type of node is the first one.
  • the number N of frequency bands configured by the class message where N is a natural number greater than or equal to 1; the number M of the first level configured by the first type of nodes, where M is a natural number greater than or equal to 1, solving the related art in LTE
  • the scheduling message of the Paging in the LTE-A system cannot guarantee the normal access of the MTC UE to the LTE/LTE-A system after the PRACH enhancement, and further enhances the scheduling message of the Paging in the LTE/LTE-A system. Therefore, the MTC UE can be normally accessed to the LTE/LTE-A system.
  • the method according to the above embodiments can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases It is a better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.
  • the resource configuration device of the message is also provided in the embodiment, and the device is used to implement the foregoing embodiment and the optional implementation manner, and details are not described herein.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 2 is a structural block diagram of a resource configuration apparatus for a message according to an embodiment of the present invention. As shown in FIG. 2, the apparatus includes: a configuration module 20.
  • the configuration module 20 is configured to configure, according to at least one quantity below, a frequency band resource used for transmitting the first type of message by using a preset rule: the first type of node is the number N of frequency bands configured to send the first type of message, Where N is a natural number greater than or equal to 1; the number M of the first level configured by the first type of nodes, where M is a natural number greater than or equal to 1.
  • the configuration module 20 configures the frequency band resources used for the first type of message transmission according to at least one of the following numbers and by using a preset rule: the first type of node is a frequency band configured to send the first type of message.
  • the quantity N where N is a natural number greater than or equal to 1; the number M of the first level configured by the first type of nodes, wherein M is a natural number greater than or equal to 1, solving the related art used in the LTE/LTE-A system
  • the message cannot guarantee the normal access of the MTC UE to the LTE/LTE-A system after the PRACH enhancement, and thus enhances the design of the message in the LTE/LTE-A system, thereby ensuring that the MTC UE can normally access the LTE/ LTE-A system.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the first type of node is the number N of frequency bands configured to send the first type of message, where N is A natural number greater than or equal to 1; the number M of the first level of the first type of node configuration, where M is a natural number greater than or equal to 1.
  • the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • a mobile hard disk e.g., a hard disk
  • magnetic memory e.g., a hard disk
  • the various modules or steps of the present invention described above can be used with general calculations.
  • the devices are implemented, they may be centralized on a single computing device, or distributed over a network of multiple computing devices, optionally they may be implemented in program code executable by the computing device, such that they may be stored Executed by the computing device in a storage device, and in some cases, the steps shown or described may be performed in an order different than that herein, or separately fabricated into individual integrated circuit modules, or Multiple modules or steps are made into a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the resource configuration method and apparatus for a message provided by the embodiment of the present invention have the following beneficial effects: the LTE/LTE-A system can not guarantee that the MTC UE accesses the LTE after the PRACH enhancement.
  • the problem of the /LTE-A system in turn, enhances the design of the message in the LTE/LTE-A system, thereby ensuring that the MTC UE can normally access the LTE/LTE-A system.

Abstract

本发明实施例提供了一种消息的资源配置方法及装置。该方法包括:根据以下至少一个数量,并通过预设规则为第一类消息发送时所利用的频带资源进行配置:第一类节点为发送第一类消息所配置的频带的数量N,其中,N为大于等于1的自然数;第一类节点配置的第一等级的数量M,其中,M为大于等于1的自然数。通过本发明实施例,解决了相关技术中在LTE/LTE-A系统中使用的消息无法保证MTC UE正常接入PRACH增强之后的LTE/LTE-A系统的问题,进而实现了对LTE/LTE-A系统中的消息的增强设计,从而保证了MTC UE可以正常接入LTE/LTE-A系统。

Description

消息的资源配置方法及装置 技术领域
本发明涉及通信领域,具体而言,涉及一种消息的资源配置方法及装置。
背景技术
MTC(Machine Type Communication,机器类型通信)用户终端(MTC User Equipment,简称MTC UE),又称M2M(Machine to Machine,机器到机器,简称M2M)用户通信设备,是现阶段物联网的主要应用形式。低功耗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GSM(Global System of Mobile communication,全球移动通信)系统。近年来,由于LTE(Long Term Evolution,长期演进)/LTE-A(LTE的后续演进)的频谱效率的提高,越来越多的移动运营商选择LTE/LTE-A作为未来宽带无线通信系统的演进方向。基于LTE/LTE-A的M2M多种类数据业务也将更具吸引力。只有当LTE-M2M设备的成本能做到比GSM系统的MTC终端低时,M2M业务才能真正从GSM转到LTE系统上。
目前对于降低MTC用户终端成本的主要备选方法包括:减少终端接收天线的数目、降低终端基带处理带宽、降低终端支持的峰值速率、采用半双工模式等等。然而成本的降低意味着性能的下降,对于LTE/LTE-A系统小区覆盖的需求是不能降低的,因此采用低成本配置的MTC终端需要采取一些措施才能达到现有LTE终端的覆盖性能需求。另外,MTC终端可能位于地下室、墙角等位置,所处场景要比普通LTE UE恶劣。为了弥补穿透损耗导致的覆盖下降,部分MTC UE需要更高的性能提升,因此针对这种场景进行部分MTC UE的上下行覆盖增强是必要的。如何保证用户的接入质量则是首先需要考虑的问题,有必要针对LTE/LTE-A系统的随机接入信道(Physical Random Access Channel,简称为PRACH)进行增强设计,保证MTC UE可以正常接入系统。
LTE/LTE-A系统中随机接入响应消息(Random Access Response,简称为RAR,又叫做Msg2消息)所占用的物理资源块(Physical Resource Block,PRB)的位置信息是包括在下行控制信息(Downlink Control Information,简称为DCI)中且通过物理下行控制信道(Physical Downlink Control Channel,简称为PDCCH)发送的。此外,上述DCI信息中还包括16比特的循环冗余校验码(Cyclic Redundancy Check,简称为CRC),并且上述CRC进一步采用16比特的随机接入无线网络临时标识(Random Access Radio Network Temporary Identity,简称为RA-RNTI)进行加扰,加扰方式为:
ck=(bk+ak)mod2k=0,1,…,15
其中,bk为CRC中的第k+1个比特;ak为RA-RNTI中的第k+1个比特;ck为加扰后生成的第k+1个比特。
UE接收到RAR消息,获得上行的时间同步和上行资源。但此时并不能确定RAR消息是发送给UE自己而不是发送给其他的UE的,因为存在着不同的UE在相同的时间-频率资源上发送相同的随机接入序列的可能性,这样,他们就会通过相同的RA-RNTI接收到同样的RAR。而且,UE也无从获知是否有其他的UE在使用相同的资源进行随机接入。为此UE需要通过随后的Msg3和Msg4消息,来解决这样的随机接入冲突。
Msg3是第一条基于上行调度并且采用HARQ(Hybrid Automatic Repeat request)机制在PUSCH上传输的消息。在初始随机接入过程中,Msg3中传输的是RRC层连接请求消息(RRC Connection Request),如果不同的UE接收到相同的RAR消息,那么他们就会获得相同的上行资源,同时发送Msg3消息,为了区分不同的UE,在MSG3中会携带一个UE特定的ID,用于区分不同的UE。在初始接入的情况下,,这个ID可以是UE的S-TMSI(如果存在的话)或者随机生成的一个40位的值。
UE在发完Msg3消息后就要立刻启动竞争消除定时器(而随后每一次重传Msg3都要重新启动这个定时器),UE需要在此时间内监听eNodeB返回给自己的冲突解决消息(ContentionResolution,Msg4消息)。
如果在竞争消除定时器配置的时间内,UE接收到eNodeB返回的Msg4消息,并且其中携带的UE ID与自己在Msg3中上报给eNodeB的相符,那么UE就认为自己赢得了此次的随机接入冲突,随机接入成功。并将在RAR消息中得到的临时C-RNTI置为自己的C-RNTI。否则的话,UE认为此次接入失败,并重新进行随机接入的重传过程。
在相关技术中,为了保证MTC UE可以正常接入系统,对LTE/LTE-A系统的PRACH进行了增强设计,但是现有的LTE/LTE-A系统中消息的传输无法保证MTC UE正常接入PRACH增强之后的LTE/LTE-A系统。
针对相关技术中LTE/LTE-A系统中消息的传输无法保证MTC UE正常接入PRACH增强之后的LTE/LTE-A系统的问题,目前尚未提出有效的解决方案。
发明内容
本发明实施例提供了一种消息的资源配置方法及装置,以至少解决相关技术中LTE/LTE-A系统中消息的传输无法保证MTC UE正常接入PRACH增强之后的LTE/LTE-A系统的问题。
根据本发明的一个实施例,提供了一种消息的资源配置方法,包括:根据以下至少一个数量,并通过预设规则为第一类消息发送时所利用的频带资源进行配置:第一类节点为发送第一类消息所配置的频带的数量N,其中,N为大于等于1的自然数;第一类节点配置的第一等级的数量M,其中,M为大于等于1的自然数。
可选地,第一类消息包括以下至少之一:第一子类消息,包括:随机接入响应消息RAR和/或寻呼消息Paging;第二子类消息,包括:通过控制信道发送的RAR的调度消息和/或通过控制信道发送的Paging的调度消息;第三子类消息,包括:通过控制信道发送的第二类节 点专有的控制信息搜索空间的配置消息的调度消息和/或通过控制信道发送的第二类节点专有的控制信息搜索空间的重新配置消息的调度消息。
可选地,第一等级包括以下至少之一:覆盖增强等级、随机接入信道PRACH覆盖增强等级、PRACH重复发送等级。
可选地,在根据以下至少一个数量,并通过预设规则为第一类消息发送时所利用的频带资源进行配置之前,该方法还包括:将第二类节点划分到不同的第一等级。
可选地,在M等于N的情况下,预设规则包括:为不同的第一等级所对应的第一类消息配置不同的频带。
可选地,为不同的第一等级所对应的第一类消息配置不同的频带包括:按照频带的第一索引值由小到大的次序,依次为按照第二索引值由小到大的次序排列的第一等级所对应的第一类消息配置频带。
可选地,在N小于M,并且N大于等于2的情况下,预设规则包括:为至少两个不同的第一等级所对应的第一类消息配置相同频带。
可选地,至少两个不同的第一等级不包括M个第一等级中的最高等级。
可选地,配置相同频带的第一类消息至少满足以下条件之一:配置相同频带的第一类消息在相同频带内支持时分复用TDM和/或频分多路复用FDM;配置相同频带的第一类消息的检测时间窗长度满足第一预设条件,其中,第一预设条件包括:每个配置相同频带的第一类消息的检测时间窗长度大于第一检测时间窗长度,其中,第一检测时间窗长度为该配置相同频带的第一类消息在独自占用一个频带情况下的检测时间窗长度。
可选地,在N等于1,并且M大于1的情况下,预设规则包括:为M个第一等级所对应的第一类消息配置同一频带。
可选地,配置同一频带的第一类消息满足以下条件之一:配置同一频带的第一类消息在同一频带内支持TDM和/或FDM;配置同一频带的第一类消息的检测时间窗长度满足第二预设条件,其中,第二预设条件包括:每个配置同一频带的第一类消息的检测时间窗长度大于第二检测时间窗长度,其中,第二检测时间窗长度为该配置同一频带的第一类消息在独自占用一个频带情况下的检测时间窗长度。
可选地,在N大于M的情况下,预设规则包括:为每个第一等级所对应的第一类消息至少配置一个频带。
可选地,为每个第一等级所对应的第一类消息至少配置一个频带包括:在N%M=0的情况下,将N个频带平均分配给M个第一等级所对应的第一类消息;在N%M=L≠0的情况下,将N-L个频带平均分配给M个第一等级所对应的第一类消息,然后按照第一等级的等级由高到低的次序,将N个频带中未执行分配的L个频带依次分配给目标第一等级所对应的第一类消息,其中,目标第一等级为从M个第一等级中等级最高的第一等级开始的L个第一等级。
可选地,通过以下任一种方法为每个第一等级所对应的第一类消息至少配置一个频带:根据第二类节点发送的随机接入序列PRACH Preamble所在的频带,确定为M个第一等级所对应的第一类消息所分配的频带;将PRACH Preamble划分为多个第一集合,并为不同第一集合所对应的第一类消息分配不同的频带;将为一个第一等级配置的随机接入信道PRACH的时频资源划分为多个第二集合,并为不同第二集合所对应的第一类消息分配不同的频带。
可选地,多个第一集合和/或多个第二集合的数量与一个第一等级对应的第一类消息所配置的频带的数量相同。
可选地,在第一类消息为通过控制信道发送的RAR的调度消息的情况下,该方法还包括:发送RAR所占用的频带信息携带在RAR的调度消息中;在第一类消息为通过控制信道发送的Paging的调度消息的情况下,该方法还包括:发送Paging所占用的频带信息携带在Paging的调度消息中;在第一类消息为通过控制信道发送的第二类节点专有的控制信息搜索空间的配置消息的调度消息的情况下,该方法还包括:发送配置消息所占用的频带信息携带在配置消息的调度消息中;在第一类消息为通过控制信道发送的第二类节点专有的控制信息搜索空间的重新配置消息的调度消息的情况下,该方法还包括:发送重新配置消息所占用的频带信息携带在重新配置消息的调度消息中。
可选地,在第一类消息为第二子类消息的情况下,预设规则包括:为不同的第一类消息配置不同的频带。
可选地,在第一类消息为第二子类消息的情况下,预设规则还包括:为不同的第一类消息配置不同的控制信道。
可选地,在第一类消息为通过控制信道发送的Paging的调度消息的情况下,预设规则还包括:为第一类Paging消息和第二类Paging消息的发送配置不同的控制信道,其中,第一类Paging消息为以下任意一种消息:指示系统消息更新的Paging消息、地震海啸预警系统ETWS的Paging消息、商用手机预警系统CMAS的Paging消息,第二类Paging消息为除第一类Paging消息之外的Paging消息。
可选地,不同的控制信道包括以下至少之一:控制信息发送格式不同的控制信道;控制信息大小不同的控制信道。
可选地,在第一类消息为第三子类消息的情况下,预设规则还包括:第一类消息发送时所利用的频带资源与以下之一消息的频带资源相同:RAR;冲突解决消息Msg4。
可选地,在第一类消息为第三子类消息的情况下,预设规则还包括:第一类消息发送时所利用的频带资源由以下至少之一的消息配置:RAR;冲突解决消息Msg4;系统信息。
可选地,在第一类消息为第三子类消息的情况下,预设规则还包括:至少根据第二类节点发送的PRACH Preamble所在的频带确定第一类消息发送时所利用的频带资源。
可选地,在第一类消息为通过控制信道发送的第二类节点专有的控制信息搜索空间的重 新配置消息的调度消息的情况下,预设规则还包括:第一类消息发送时所利用的频带资源与第二类节点专有的控制信息搜索空间所配置的频带相同。
可选地,第一类节点包括以下至少之一:宏基站Macrocell;微基站Microcell;微微基站Picocell;毫微微基站Femtocell;低功率节点LPN;中继站Relay。
可选地,第二类节点为一个以上的终端或者一个以上的终端组。
根据本发明的另一实施例,提供了一种消息的资源配置装置,包括:配置模块,设置为根据以下至少一个数量,并通过预设规则为第一类消息发送时所利用的频带资源进行配置:第一类节点为发送第一类消息所配置的频带的数量N,其中,N为大于等于1的自然数;第一类节点配置的第一等级的数量M,其中,M为大于等于1的自然数。
根据本发明的另一实施例,提供了一种存储介质,设置为存储执行上述任一种消息的资源配置方法的计算机程序。
通过本发明实施例,根据以下至少一个数量,并通过预设规则为第一类消息发送时所利用的频带资源进行配置:第一类节点为发送第一类消息所配置的频带的数量N,其中,N为大于等于1的自然数;第一类节点配置的第一等级的数量M,其中,M为大于等于1的自然数,解决了相关技术中在LTE/LTE-A系统中使用的消息无法保证MTC UE正常接入PRACH增强之后的LTE/LTE-A系统的问题,进而实现了对LTE/LTE-A系统中的消息的增强设计,从而保证了MTC UE可以正常接入LTE/LTE-A系统。
附图说明
此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。在附图中:
图1是根据本发明第一实施例的消息的资源配置方法的流程图;以及
图2是根据本发明实施例的消息的资源配置装置的结构框图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。
需要说明的是,本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。
在本实施例中提供了一种消息的资源配置方法,图1是根据本发明第一实施例的消息的资源配置方法的流程图,如图1所示,该方法包括如下步骤:
步骤S102,根据以下至少一个数量,并通过预设规则为第一类消息发送时所利用的频带 资源进行配置:第一类节点为发送第一类消息所配置的频带的数量N,其中,N为大于等于1的自然数;第一类节点配置的第一等级的数量M,其中,M为大于等于1的自然数。
其中,第一类消息可以包括以下至少之一:第一子类消息,包括:随机接入响应消息RAR和/或寻呼消息Paging;第二子类消息,包括:通过控制信道发送的RAR的调度消息和/或通过控制信道发送的Paging的调度消息;第三子类消息,包括:通过控制信道发送的第二类节点专有的控制信息搜索空间的配置消息的调度消息和/或通过控制信道发送的第二类节点专有的控制信息搜索空间的重新配置消息的调度消息。
其中,第一等级可以包括以下至少之一:覆盖增强等级、随机接入信道PRACH覆盖增强等级、PRACH重复发送等级。
其中,M个第一等级中第一等级的级别越高,其覆盖增强需求量越大。
通过该实施例,根据以下至少一个数量,并通过预设规则为第一类消息发送时所利用的频带资源进行配置:第一类节点为发送第一类消息所配置的频带的数量N,其中,N为大于等于1的自然数;第一类节点配置的第一等级的数量M,其中,M为大于等于1的自然数,解决了相关技术中在LTE/LTE-A系统中使用的消息无法保证MTC UE正常接入PRACH增强之后的LTE/LTE-A系统的问题,进而实现了对LTE/LTE-A系统中的消息的增强设计,从而保证了MTC UE可以正常接入LTE/LTE-A系统。
可选地,在根据以下至少一个数量,并通过预设规则为第一类消息发送时所利用的频带资源进行配置之前,该方法还包括:将第二类节点划分到不同的第一等级。
在M等于N的情况下,可选地,预设规则包括:为不同的第一等级所对应的第一类消息配置不同的频带。
在M等于N的情况下,可选地,为不同的第一等级所对应的第一类消息配置不同的频带包括:按照频带的第一索引值由小到大的次序,依次为按照第二索引值由小到大的次序排列的第一等级所对应的第一类消息配置频带。
在N小于M,并且N大于等于2的情况下,可选地,预设规则包括:为至少两个不同的等级所对应的第一类消息配置相同频带。
在N小于M,并且N大于等于2的情况下,可选地,至少两个不同的第一等级不包括M个第一等级中的最高等级。
在N小于M,并且N大于等于2的情况下,可选地,配置相同频带的第一类消息至少满足以下条件之一:配置相同频带的第一类消息在相同频带内支持时分复用TDM和/或频分多路复用FDM;配置相同频带的第一类消息的检测时间窗长度满足第一预设条件,其中,第一预设条件包括:每个配置相同频带的第一类消息的检测时间窗长度大于第一检测时间窗长度,其中,第一检测时间窗长度为该配置相同频带的第一类消息在独自占用一个频带情况下的检测时间窗长度。
可选地,在N等于1,并且M大于1的情况下,预设规则包括:为M个第一等级所对应的第一类消息配置同一频带。
在N等于1,并且M大于1的情况下,可选地,配置同一频带的第一类消息满足以下条件之一:配置同一频带的第一类消息在同一频带内支持TDM和/或FDM;配置同一频带的第一类消息的检测时间窗长度满足第二预设条件,其中,第二预设条件包括:每个配置同一频带的第一类消息的检测时间窗长度大于第二检测时间窗长度,其中,第二检测时间窗长度为该配置同一频带的第一类消息在独自占用一个频带情况下的检测时间窗长度。
可选地,在N大于M的情况下,预设规则包括:为每个第一等级所对应的第一类消息至少配置一在N大于M的情况下,个频带。
在N大于M的情况下,可选地,为每个第一等级所对应的第一类消息至少配置一个频带包括:在N%M=0的情况下,将N个频带平均分配给M个第一等级所对应的第一类消息;在N%M=L≠0的情况下,将N-L个频带平均分配给M个第一等级所对应的第一类消息,然后按照第一等级的等级由高到低的次序,将N个频带中未执行分配的L个频带依次分配给目标第一等级所对应的第一类消息,其中,目标第一等级为从M个第一等级中等级最高的第一等级开始的L个第一等级。其中,N%M表示N对M取余数。
可选地,通过以下任一种方法为每个第一等级所对应的第一类消息至少配置一个频带:根据第二类节点发送的随机接入序列PRACH Preamble所在的频带,确定为M个第一等级所对应的第一类消息所分配的频带;将PRACH Preamble划分为多个第一集合,并为不同第一集合所对应的第一类消息分配不同的频带;将为一个第一等级配置的随机接入信道PRACH的时频资源划分为多个第二集合,并为不同第二集合所对应的第一类消息分配不同的频带。
可选地,多个第一集合和/或多个第二集合的数量与一个第一等级对应的第一类消息所配置的频带的数量相同。
在第一类消息为通过控制信道发送的RAR的调度消息的情况下,可选地,该方法还包括:发送RAR所占用的频带信息携带在RAR的调度消息中;在第一类消息为通过控制信道发送的Paging的调度消息的情况下,该方法还包括:发送Paging所占用的频带信息携带在Paging的调度消息中;在第一类消息为通过控制信道发送的第二类节点专有的控制信息搜索空间的配置消息的调度消息的情况下,该方法还包括:发送配置消息所占用的频带信息携带在配置消息的调度消息中;在第一类消息为通过控制信道发送的第二类节点专有的控制信息搜索空间的重新配置消息的调度消息的情况下,该方法还包括:发送重新配置消息所占用的频带信息携带在重新配置消息的调度消息中。
在第一类消息为第二子类消息的情况下,可选地,预设规则包括:为不同的第一类消息配置不同的频带。
在第一类消息为第二子类消息的情况下,可选地,预设规则还包括:为不同的第一类消息配置不同的控制信道。
在第一类消息为通过控制信道发送的Paging的调度消息的情况下,可选地,预设规则还包括:为第一类Paging消息和第二类Paging消息的发送配置不同的控制信道,其中,第一类Paging消息为以下任意一种消息:指示系统消息更新的Paging消息、地震海啸预警系统ETWS的Paging消息、商用手机预警系统CMAS(CMAS Commercial Mobile Alert Service)的Paging消息,第二类Paging消息为除第一类Paging消息之外的Paging消息。
可选地,不同的控制信道包括以下至少之一:控制信息发送格式不同的控制信道;控制信息大小不同的控制信道。
在第一类消息为第三子类消息的情况下,可选地,预设规则还包括:第一类消息发送时所利用的频带资源与以下之一消息的频带资源相同:RAR;冲突解决消息Msg4。
在第一类消息为第三子类消息的情况下,可选地,预设规则还包括:第一类消息发送时所利用的频带资源由以下至少之一的消息配置:RAR;冲突解决消息Msg4;系统信息。
在第一类消息为第三子类消息的情况下,可选地,预设规则还包括:至少根据第二类节点发送的PRACH Preamble所在的频带确定第一类消息发送时所利用的频带资源。
在第一类消息为通过控制信道发送的第二类节点专有的控制信息搜索空间的重新配置消息的调度消息的情况下,可选地,预设规则还包括:第一类消息发送时所利用的频带资源与第二类节点专有的控制信息搜索空间所配置的频带相同。
在上述所有的实施例中,第一类节点可以包括以下至少之一:宏基站Macrocell;微基站Microcell;微微基站Picocell;毫微微基站Femtocell;低功率节点LPN;中继站Relay。第二类节点为一个以上的终端或者一个以上的终端组。
下面是根据本发明第二实施例的消息的资源配置方法。
系统中存在基站(eNB)和多种终端(User Equipment,UE),其中包括一种工作在很窄频带的UE,记作NB UE(NarrowBand UE)。NB UE的工作带宽比较小,例如,NB UE只占用很小的一部分系统带宽。这样可以将系统带宽划分为多个NB UE的工作带宽,每个NB UE的工作带宽记作一个NB。
同时,eNB支持对NB UE的覆盖增强(Coverage Enhancement UE),在该实施例中,假设eNB共支持3个覆盖增强等级(Coverage Enhancement level,CEL),分别为CEL0、CEL1和CEL2。CEL等级越高对应的覆盖增强目标值越大。在该实施例中,UE0为CEL0的NB UE,UE1为CEL1的NB UE,UE2为CEL2的NB UE。eNB为其分配PRACH资源,包括发送随机接入信令所使用的随机接入序列(Preamble)以及发送Preamble所使用的时频资源,其中,频域上以NB为最小分配单位。
UE0~UE2按照eNB的配置信息在PRACH上发送Preamble之后,需要接收eNB发送的随机接入响应信息(RAR消息)。需要说明的是,UE0~UE2需要首先获知RAR消息发送所处的NB索引,然后才能在相应的NB上检测RAR消息。在该实施例中,eNB配置NB UE可用 于接收RAR的NB共三个,分别为NB Index 0、NB Index 5和NB Index 10。则可以默认NB Index0分配给CEL0,NB Index 5分配给CEL1,NB Index 10分配给CEL2。UE0~UE2分别在自身对应的CEL等级配置的NB上检测RAR消息。也即,该实施例中的消息的资源配置规则同于第一实施例中的预设规则:在M等于N的情况下,为不同的第一等级所对应的第一类消息配置不同的频带,包括:按照频带的第一索引值由小到大的次序,依次为按照第二索引值由小到大的次序排列的第一等级所对应的第一类消息配置频带。其中,M=N=3,第一类消息即RAR消息。
另外,当eNB配置NB UE可用于接收RAR的NB共六个,分别为NB Index 0、NB Index2、NB Index 4、NB Index 6、NB Index 8和NB Index 10时,可以默认NB Index 0和2分配给CEL0,NB Index 4和6分配给CEL1,NB Index 8和10分配给CEL2。UE0~UE2分别在自身对应的CEL等级配置的NB上检测RAR消息。也即,同于第一实施例中的预设规则:在N大于M,并且N%M=0的情况下,将N个频带平均分配给M个第一等级所对应的第一类消息。其中,N=6,M=3,第一类消息即RAR消息。
下面是根据本发明第三实施例的消息的资源配置方法。
系统中存在基站(eNB)和多种终端(User Equipment,UE),其中包括一种工作在很窄频带的UE,记作NB UE(NarrowBand UE)。NB UE的工作带宽比较小,例如,只占用很小的一部分系统带宽。这样可以将系统带宽划分为多个NB UE的工作带宽,每个NB UE的工作带宽记作一个NB。
同时,eNB支持对NB UE的覆盖增强(Coverage Enhancement UE),在该实施例中,eNB一共支持3个覆盖增强等级(Coverage Enhancement level,CEL),分别为CEL0、CEL1和CEL2。CEL等级越高对应的覆盖增强目标值越大。在该实施例中,UE0为CEL0的NB UE,UE1为CEL1的NB UE,UE2为CEL2的NB UE。eNB为其分配PRACH资源,包括发送随机接入信令所使用的随机接入序列(Preamble)以及发送Preamble所使用的时频资源,其中,频域上以NB为最小分配单位。
UE0~UE2按照eNB的配置信息在PRACH上发送完Preamble之后,需要接收eNB发送的随机接入响应信息(RAR消息)。需要说明的是,UE0~UE2首先需要获知RAR消息发送所处的NB索引,然后才能在相应的NB上检测RAR消息。在该实施例中,eNB配置NB UE可用于接收RAR的NB共两个,分别为NB Index 0和NB Index 5。则可以默认NB Index 0分配给CEL0和CEL1,NB Index 5分配给CEL2。也即,同于第一实施例中的预设规则:在N小于M,并且N大于等于2的情况下,为至少两个不同的等级所对应的第一类消息配置相同频带。其中,N=2,M=3,第一类消息即RAR消息。
UE0~UE2分别在自身对应的CEL等级配置的NB上检测RAR消息。由于UE0和UE1都配置在NB Index 0上检测RAR消息,则UE0和UE1的RAR消息在NB Index 0采用TDM或者FDM的复用方案时发送。也即,同于第一实施例中的预设规则:在N小于M,并且N大于等于2的情况下,配置相同频带的第一类消息在相同频带内支持时分复用TDM和/或频 分多路复用FDM。其中,N=2,M=3,第一类消息即RAR消息。
其中,当UE0和UE1的RAR消息在NB Index 0采用TDM复用方案发送时,由于UE1的CEL等级为CEL1,比UE0的CEL0高,因此UE1的RAR消息发送时配置的时域资源要比UE0配置的多。UE0和UE1分别在CEL对应的时域资源上检测RAR消息。
另外,当UE0和UE1的RAR消息在NB Index 0采用TDM复用方案发送时,由于UE1的CEL等级为CEL1,比UE0的CEL0高,因此UE1的RAR发送时配置的时域资源要比UE0配置的多。对于UE0来说,由于RAR消息可能在CEL0和CEL1对应的时域资源上发送,则UE0需要分别在CEL0和CEL1对应的时域资源上检测RAR消息。
下面是根据本发明第四实施例的消息的资源配置方法。
系统中存在基站(eNB)和多种终端(User Equipment,UE),其中包括一种工作在很窄频带的UE,记作NB UE(NarrowBand UE)。NB UE的工作带宽比较小,例如,只占用很小的一部分系统带宽。这样可以将系统带宽划分为多个NB UE的工作带宽,每个NB UE的工作带宽记作一个NB。
同时,eNB支持对NB UE的覆盖增强(Coverage Enhancement UE),在该实施例中,eNB一共支持3个覆盖增强等级(Coverage Enhancement level,CEL),分别为CEL0、CEL1和CEL2。CEL等级越高对应的覆盖增强目标值越大。在该实施例中,UE0为CEL0的NB UE,UE1为CEL1的NB UE,UE2为CEL2的NB UE。eNB为其分配PRACH资源,包括发送随机接入信令所使用的随机接入序列(Preamble)以及发送Preamble所使用的时频资源,频域上以NB为最小分配单位。
UE0~UE2按照eNB的配置信息在PRACH上发送完Preamble之后,需要接收eNB发送的随机接入响应信息(RAR消息)。需要说明的是,UE0~UE2首先需要获知RAR消息发送所处的NB索引,然后才能在相应的NB上检测RAR消息。在该实施例中,eNB配置NB UE可用于接收RAR的NB共两个,分别为NB Index 0和NB Index 5。则可以默认NB Index 0分配给CEL0和CEL1,NB Index 5分配给CEL2。
UE0~UE2分别在自身对应的CEL等级配置的NB上检测RAR消息。由于UE0和UE1都配置在NB Index 0上检测RAR消息,并且UE1的CEL等级为CEL1,比UE0的CEL0高,因此UE1的RAR发送时配置的时域资源要比UE0配置的多。在NB Index 0上,按照CEL1的RAR消息发送时配置的时域资源数量大小划分为多个RAR发送周期。对于UE0来说,首先在上述周期开始时按照CEL0的RAR发送时配置的时域资源数量检测RAR消息,如果没有检测成功,则保留接收到的CEL0的RAR消息发送时配置的时域资源,并且进一步接收上述周期内CEL1的RAR发送时配置的时域资源,并且按照CEL1检测RAR消息。下个周期UE0同样按照上述方案检测RAR消息。也即,同于第一实施例中的预设规则:将为一个第一等级配置的随机接入信道PRACH的时频资源划分为多个第二集合,并为不同第二集合所对应的第一类消息分配不同的频带。
下面是根据本发明第五实施例的消息的资源配置方法。
系统中存在基站(eNB)和多种终端(User Equipment,UE),其中包括一种工作在很窄频带的UE,记作NB UE(NarrowBand UE)。NB UE的工作带宽比较小,例如,只占用很小的一部分系统带宽。这样可以将系统带宽划分为多个NB UE的工作带宽,每个NB UE的工作带宽记作一个NB。
同时,eNB支持对NB UE的覆盖增强(Coverage Enhancement UE),在该实施例中,eNB一共支持3个覆盖增强等级(Coverage Enhancement level,CEL),分别为CEL0、CEL1和CEL2。CEL等级越高对应的覆盖增强目标值越大。在该实施例中,UE0为CEL0的NB UE,UE1为CEL1的NB UE,UE2为CEL2的NB UE。eNB为其分配PRACH资源,包括发送随机接入信令所使用的随机接入序列(Preamble)以及发送Preamble所使用的时频资源,频域上以NB为最小分配单位。
UE0~UE2按照eNB的配置信息在PRACH上发送完Preamble之后,需要接收eNB发送的随机接入响应信息RAR消息。需要说明的是,UE0~UE2首先需要获知RAR消息发送所处的NB索引,然后才能在相应的NB上检测RAR消息。在该实施例中,eNB配置NB UE可用于接收RAR的NB共四个,分别为NB Index 0、NB Index 5、NB Index 10和NB Index 15。则NB Index 0分配给CEL0,NB Index 5分配给CEL1,NB Index 10分配给CEL2,NB Index 15分配给CEL2。
UE0~UE2分别在自身对应的CEL等级配置的NB上检测RAR消息。由于CEL2配置了NB Index 10、NB Index 15两个NB,则UE2需要确定发送给自己的RAR在哪个NB上。在该实施例中,将PRACH Preamble划分为2个集合,不同集合对应的RAR消息所在的NB不同,UE2根据自己发送的Preamble所属的集合来确定发送给自己的RAR所在的NB。也即,同于第一实施例中的预设规则:将PRACH Preamble划分为多个第一集合,并为不同第一集合所对应的第一类消息分配不同的频带。
通过上述的第二至第五实施例中的任一种实施方式,根据以下至少一个数量,并通过预设规则为第一类消息发送时所利用的频带资源进行配置(不同实施例采用不同的预设规则):第一类节点为发送第一类消息所配置的频带的数量N,其中,N为大于等于1的自然数;第一类节点配置的第一等级的数量M,其中,M为大于等于1的自然数,解决了相关技术中在LTE/LTE-A系统中的RAR消息无法保证MTC UE正常接入PRACH增强之后的LTE/LTE-A系统的问题,进而实现了对LTE/LTE-A系统中的RAR消息的增强设计,从而保证了MTC UE可以正常接入LTE/LTE-A系统。
需要说明的是,基于上述的第二至第五实施例中对于RAR消息的资源配置方法,同样适用于RAR消息的调度消息的资源分配。在分别基于与上述第二至第五实施例相同的方法进行RAR消息的调度消息的资源分配时,上述实施例还分别包括以下的执行步骤:通过RAR的调度消息DCI获知RAR的资源,进而解码该RAR消息。
基于与第二实施例中相同的方法进行RAR消息的调度消息的资源分配,可以通过下面的 第六实施例进行说明。基于与第三至第五实施例相同的方法进行RAR消息的调度消息的资源分配,本文不再赘述。
下面是根据本发明第六实施例的消息的资源配置方法。
系统中存在基站(eNB)和多种终端(User Equipment,UE),其中包括一种工作在很窄频带的UE,记作NB UE(NarrowBand UE)。NB UE的工作带宽比较小,例如,只占用很小的一部分系统带宽。这样可以将系统带宽划分为多个NB UE的工作带宽,每个NB UE的工作带宽记作一个NB。
同时,eNB支持对NB UE的覆盖增强(Coverage Enhancement UE),在该实施例中,eNB一共支持3个覆盖增强等级(Coverage Enhancement level,CEL),分别为CEL0、CEL1和CEL2。CEL等级越高对应的覆盖增强目标值越大。在该实施例中,UE0为CEL0的NB UE,UE1为CEL1的NB UE,UE2为CEL2的NB UE。eNB为其分配PRACH资源,包括发送随机接入信令所使用的随机接入序列(Preamble)以及发送Preamble所使用的时频资源,频域上以NB为最小分配单位。
UE0~UE2按照eNB的配置信息在PRACH上发送完Preamble之后,需要接收eNB发送的随机接入响应信息(RAR消息)。需要说明的是,UE0~UE2首先需要获知RAR消息发送所处的NB索引,然后才能在相应的NB上检测RAR消息。在该实施例中,RAR消息发送的资源是基于下行控制信息(Downlink Control Information,DCI)调度指示的。首先UE0~UE2需获知RAR的调度消息DCI发送所处的NB索引。在该实施例中,eNB配置NB UE可用于接收RAR的调度消息DCI的NB共三个,分别为NB Index 0、NB Index 5和NB Index 10。则可以默认NB Index 0分配给CEL0,NB Index 5分配给CEL1,NB Index 10分配给CEL2。UE0~UE2分别在自己对应的CEL等级配置的NB上检测RAR的调度消息DCI,并且通过该DCI获知RAR的资源,进而解码该RAR消息。
也即,该实施例中的消息的资源配置规则同于第一实施例中的预设规则:在M等于N的情况下,为不同的第一等级所对应的第一类消息配置不同的频带,包括:按照频带的第一索引值由小到大的次序,依次为按照第二索引值由小到大的次序排列的第一等级所对应的第一类消息配置频带。其中,M=N=3,第一类消息即RAR消息的调度消息。
通过该实施例,根据以下至少一个数量,并通过预设规则为第一类消息发送时所利用的频带资源进行配置(不同实施例采用不同的预设规则):第一类节点为发送第一类消息所配置的频带的数量N,其中,N为大于等于1的自然数;第一类节点配置的第一等级的数量M,其中,M为大于等于1的自然数,解决了相关技术中在LTE/LTE-A系统中的RAR消息的调度消息无法保证MTC UE正常接入PRACH增强之后的LTE/LTE-A系统的问题,进而实现了对LTE/LTE-A系统中的RAR消息的调度消息的增强设计,从而保证了MTC UE可以正常接入LTE/LTE-A系统。
需要说明的是,基于上述的第二至第五实施例中对于RAR消息的资源配置方法,同样适用于paging消息的资源配置,唯一区别在于paging消息的资源配置方法取消了如下过程: UE0~UE2按照eNB的配置信息在PRACH上发送Preamble。
基于与第二实施例中相同的方法进行paging消息的资源配置(不包括UE0~UE2按照eNB的配置信息在PRACH上发送Preamble),可以通过下面的第七实施例进行说明。基于与第三至第五实施例相同的方法(不包括UE0~UE2按照eNB的配置信息在PRACH上发送Preamble)进行paging消息的资源配置,本文不再赘述。
下面是根据本发明第七实施例的消息的资源配置方法。
系统中存在基站(eNB)和多种终端(User Equipment,简称为UE),其中包括一种工作在很窄频带的UE,记作NB UE(NarrowBand UE)。NB UE的工作带宽比较小,例如,只占用很小的一部分系统带宽。这样可以将系统带宽划分为多个NB UE的工作带宽,每个NB UE的工作带宽记作一个NB。
同时,eNB支持对NB UE的覆盖增强(Coverage Enhancement UE),在该实施例中,eNB一共支持3个覆盖增强等级(Coverage Enhancement level,CEL),分别为CEL0、CEL1和CEL2。CEL等级越高对应的覆盖增强目标值越大。在该实施例中,UE0为CEL0的NB UE,UE1为CEL1的NB UE,UE2为CEL2的NB UE。
UE0~UE2接收eNB发送的寻呼消息(Paging)。在该实施例中,Paging消息发送的资源是基于下行控制信息(Downlink Control Information,DCI)调度指示的。首先UE0~UE2需要获知Paging消息发送所处的NB索引。在该实施例中,eNB配置NB UE可用来接收Paging消息的NB共三个,分别为NB Index 0、NB Index 5和NB Index 10。则可默认NB Index 0分配给CEL0,NB Index 5分配给CEL1,NB Index 10分配给CEL2。UE0~UE2分别在自己对应的CEL等级配置的NB上检测Paging消息。
也即,该实施例中的消息的资源配置规则同于第一实施例中的预设规则:在M等于N的情况下,为不同的第一等级所对应的第一类消息配置不同的频带,包括:按照频带的第一索引值由小到大的次序,依次为按照第二索引值由小到大的次序排列的第一等级所对应的第一类消息配置频带。其中,M=N=3,第一类消息即Paging消息。
通过该实施例,根据以下至少一个数量,并通过预设规则为第一类消息发送时所利用的频带资源进行配置(不同实施例采用不同的预设规则):第一类节点为发送第一类消息所配置的频带的数量N,其中,N为大于等于1的自然数;第一类节点配置的第一等级的数量M,其中,M为大于等于1的自然数,解决了相关技术中在LTE/LTE-A系统中的Paging消息无法保证MTC UE正常接入PRACH增强之后的LTE/LTE-A系统的问题,进而实现了对LTE/LTE-A系统中的Paging消息的增强设计,从而保证了MTC UE可以正常接入LTE/LTE-A系统。
需要说明的是,基于上述的第二至第五实施例中对于RAR消息的资源配置方法,同样适用于paging消息的调度消息的资源分配,区别在于paging消息的调度消息的资源配置方法取消了如下过程:UE0~UE2按照eNB的配置信息在PRACH上发送Preamble,并且增加了如下过程:通过paging消息的调度消息DCI获知Paging的资源,进而解码该Paging消息。
基于与第二实施例中相同的方法进行paging消息的调度消息的资源分配(取消了UE0~UE2按照eNB的配置信息在PRACH上发送Preamble,并增加了通过paging消息的调度消息DCI获知Paging的资源,进而解码该Paging消息),可以通过下面的第八实施例进行说明。分别基于与第三至第五实施例相同的方法进行paging消息的调度消息的资源分配(取消了UE0~UE2按照eNB的配置信息在PRACH上发送Preamble,并且增加了通过paging消息的调度消息DCI获知Paging的资源,进而解码该Paging消息),本文不再赘述。
下面是根据本发明第八实施例的消息的资源配置方法。
系统中存在基站(eNB)和多种终端(User Equipment,UE),其中包括一种工作在很窄频带的UE,记作NB UE(NarrowBand UE)。NB UE的工作带宽比较小,例如,只占用很小的一部分系统带宽。这样可以将系统带宽划分为多个NB UE的工作带宽,每个NB UE的工作带宽记作一个NB。
同时,eNB支持对NB UE的覆盖增强(Coverage Enhancement UE),在该实施例中,eNB一共支持3个覆盖增强等级(Coverage Enhancement level,CEL),分别为CEL0、CEL1和CEL2。CEL等级越高对应的覆盖增强目标值越大。在该实施例中,UE0为CEL0的NB UE,UE1为CEL1的NB UE,UE2为CEL2的NB UE。
UE0~UE2接收eNB发送的寻呼消息(Paging)。在该实施例中,Paging消息发送的资源是基于下行控制信息(Downlink Control Information,DCI)调度指示的。首先UE0~UE2需要获知Paging的调度消息DCI发送所处的NB索引。在该实施例中,eNB配置NB UE可用的来接收Paging的调度消息DCI的NB共三个,分别为NB Index 0、NB Index 5和NB Index 10。则可以默认NB Index 0分配给CEL0,NB Index 5分配给CEL1,NB Index 10分配给CEL2。UE0~UE2分别在自己对应的CEL等级配置的NB上检测Paging的调度消息DCI,并且通过该DCI获知Paging的资源,进而解码该Paging消息。
也即,该实施例中的消息的资源配置规则同于第一实施例中的预设规则:在M等于N的情况下,为不同的第一等级所对应的第一类消息配置不同的频带,包括:按照频带的第一索引值由小到大的次序,依次为按照第二索引值由小到大的次序排列的第一等级所对应的第一类消息配置频带。其中,M=N=3,第一类消息即Paging的调度消息。
通过该实施例,根据以下至少一个数量,并通过预设规则为第一类消息发送时所利用的频带资源进行配置(不同实施例采用不同的预设规则):第一类节点为发送第一类消息所配置的频带的数量N,其中,N为大于等于1的自然数;第一类节点配置的第一等级的数量M,其中,M为大于等于1的自然数,解决了相关技术中在LTE/LTE-A系统中的Paging的调度消息无法保证MTC UE正常接入PRACH增强之后的LTE/LTE-A系统的问题,进而实现了对LTE/LTE-A系统中的Paging的调度消息的增强设计,从而保证了MTC UE可以正常接入LTE/LTE-A系统。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前 者是更佳的实施方式。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端设备(可以是手机,计算机,服务器,或者网络设备等)执行本发明各个实施例所述的方法。
在本实施例中还提供了一种消息的资源配置装置,该装置用于实现上述实施例及可选实施方式,已经进行过说明的不再赘述。如以下所使用的,术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现,但是硬件,或者软件和硬件的组合的实现也是可能并被构想的。
图2是根据本发明实施例的消息的资源配置装置的结构框图,如图2所示,该装置包括:配置模块20。
配置模块20,设置为根据以下至少一个数量,并通过预设规则为第一类消息发送时所利用的频带资源进行配置:第一类节点为发送第一类消息所配置的频带的数量N,其中,N为大于等于1的自然数;第一类节点配置的第一等级的数量M,其中,M为大于等于1的自然数。
根据该实施例,通过配置模块20根据以下至少一个数量,并通过预设规则为第一类消息发送时所利用的频带资源进行配置:第一类节点为发送第一类消息所配置的频带的数量N,其中,N为大于等于1的自然数;第一类节点配置的第一等级的数量M,其中,M为大于等于1的自然数,解决了相关技术中在LTE/LTE-A系统中使用的消息无法保证MTC UE正常接入PRACH增强之后的LTE/LTE-A系统的问题,进而实现了对LTE/LTE-A系统中的消息的增强设计,从而保证了MTC UE可以正常接入LTE/LTE-A系统。
需要说明的是,上述各个模块是可以通过软件或硬件来实现的,对于后者,可以通过以下方式实现,但不限于此:上述模块均位于同一处理器中;或者,上述模块分别位于多个处理器中。
可选地,本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例,本实施例在此不再赘述。
本发明的实施例还提供了一种存储介质。可选地,在本实施例中,上述存储介质可以被设置为存储用于执行以下步骤的程序代码:
S102,根据以下至少一个数量,并通过预设规则为第一类消息发送时所利用的频带资源进行配置:第一类节点为发送第一类消息所配置的频带的数量N,其中,N为大于等于1的自然数;第一类节点配置的第一等级的数量M,其中,M为大于等于1的自然数。
可选地,在本实施例中,上述存储介质可以包括但不限于:U盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
显然,本领域的技术人员应该明白,上述的本发明的各模块或各步骤可以用通用的计算 装置来实现,它们可以集中在单个的计算装置上,或者分布在多个计算装置所组成的网络上,可选地,它们可以用计算装置可执行的程序代码来实现,从而,可以将它们存储在存储装置中由计算装置来执行,并且在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤,或者将它们分别制作成各个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样,本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的可选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。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,均应包括在本发明的保护范围之内。
工业实用性
如上所述,本发明实施例提供的一种消息的资源配置方法及装置,具有以下有益效果:解决了在LTE/LTE-A系统中使用的消息无法保证MTC UE正常接入PRACH增强之后的LTE/LTE-A系统的问题,进而实现了对LTE/LTE-A系统中的消息的增强设计,从而保证了MTC UE可以正常接入LTE/LTE-A系统。

Claims (28)

  1. 一种消息的资源配置方法,包括:
    根据以下至少一个数量,并通过预设规则为第一类消息发送时所利用的频带资源进行配置:
    第一类节点为发送所述第一类消息所配置的频带的数量N,其中,N为大于等于1的自然数;
    所述第一类节点配置的第一等级的数量M,其中,M为大于等于1的自然数。
  2. 根据权利要求1所述的方法,其中,所述第一类消息包括以下至少之一:
    第一子类消息,包括:随机接入响应消息RAR和/或寻呼消息Paging;
    第二子类消息,包括:通过控制信道发送的RAR的调度消息和/或通过所述控制信道发送的Paging的调度消息;
    第三子类消息,包括:通过所述控制信道发送的第二类节点专有的控制信息搜索空间的配置消息的调度消息和/或通过所述控制信道发送的第二类节点专有的控制信息搜索空间的重新配置消息的调度消息。
  3. 根据权利要求1所述的方法,其中,所述第一等级包括以下至少之一:
    覆盖增强等级、随机接入信道PRACH覆盖增强等级、PRACH重复发送等级。
  4. 根据权利要求1所述的方法,其中,在根据以下至少一个数量,并通过预设规则为第一类消息发送时所利用的频带资源进行配置之前,所述方法还包括:
    将第二类节点划分到不同的第一等级。
  5. 根据权利要求1所述的方法,其中,在M等于N的情况下,所述预设规则包括:
    为不同的第一等级所对应的第一类消息配置不同的频带。
  6. 根据权利要求5所述的方法,其中,为不同的第一等级所对应的第一类消息配置不同的频带包括:
    按照所述频带的第一索引值由小到大的次序,依次为按照第二索引值由小到大的次序排列的第一等级所对应的第一类消息配置频带。
  7. 根据权利要求1所述的方法,其中,在N小于M,并且N大于等于2的情况下,所述预设规则包括:
    为至少两个不同的第一等级所对应的第一类消息配置相同频带。
  8. 根据权利要求7所述的方法,其中,所述至少两个不同的第一等级不包括所述M个第一等级中的最高等级。
  9. 根据权利要求7或者8所述的方法,其中,配置所述相同频带的第一类消息至少满足以下条件之一:
    配置所述相同频带的第一类消息在所述相同频带内支持时分复用TDM和/或频分多路复用FDM;
    配置所述相同频带的第一类消息的检测时间窗长度满足第一预设条件,
    其中,所述第一预设条件包括:每个配置所述相同频带的第一类消息的检测时间窗长度大于第一检测时间窗长度,其中,所述第一检测时间窗长度为该配置所述相同频带的第一类消息在独自占用一个频带情况下的检测时间窗长度。
  10. 根据权利要求1所述的方法,其中,在N等于1,并且M大于1的情况下,所述预设规则包括:
    为所述M个第一等级所对应的第一类消息配置同一频带。
  11. 根据权利要求10所述的方法,其中,配置所述同一频带的第一类消息满足以下条件之一:
    配置所述同一频带的第一类消息在所述同一频带内支持TDM和/或FDM;
    配置所述同一频带的第一类消息的检测时间窗长度满足第二预设条件,
    其中,所述第二预设条件包括:每个配置所述同一频带的第一类消息的检测时间窗长度大于第二检测时间窗长度,其中,所述第二检测时间窗长度为该配置所述同一频带的第一类消息在独自占用一个频带情况下的检测时间窗长度。
  12. 根据权利要求1所述的方法,其中,在N大于M的情况下,所述预设规则包括:
    为每个第一等级所对应的第一类消息至少配置一个频带。
  13. 根据权利要求12所述的方法,其中,为每个第一等级所对应的第一类消息至少配置一个频带包括:
    在所述N%M=0的情况下,将所述N个频带平均分配给所述M个第一等级所对应的第一类消息;
    在所述N%M=L≠0的情况下,将N-L个频带平均分配给所述M个第一等级所对应的第一类消息,然后按照所述第一等级的等级由高到低的次序,将N个频带中未执行分配的L个频带依次分配给目标第一等级所对应的第一类消息,其中,所述目标第一等级为从所述M个第一等级中等级最高的第一等级开始的L个第一等级。
  14. 根据权利要求12或者13所述的方法,其中,通过以下任一种方法为每个第一等级所对应的第一类消息至少配置一个频带:
    根据第二类节点发送的随机接入序列PRACH Preamble所在的频带,确定为所述M个第一等级所对应的第一类消息所分配的频带;
    将所述PRACH Preamble划分为多个第一集合,并为不同第一集合所对应的第一类消息分配不同的频带;
    将为一个第一等级配置的随机接入信道PRACH的时频资源划分为多个第二集合,并为不同第二集合所对应的第一类消息分配不同的频带。
  15. 根据权利要求14所述的方法,其中,所述多个第一集合和/或所述多个第二集合的数量与一个第一等级对应的第一类消息所配置的频带的数量相同。
  16. 根据权利要求2所述的方法,其中,
    在所述第一类消息为通过所述控制信道发送的RAR的调度消息的情况下,所述方法还包括:发送所述RAR所占用的频带信息携带在所述RAR的调度消息中;
    在所述第一类消息为通过所述控制信道发送的Paging的调度消息的情况下,所述方法还包括:发送所述Paging所占用的频带信息携带在所述Paging的调度消息中;
    在所述第一类消息为通过所述控制信道发送的第二类节点专有的控制信息搜索空间的配置消息的调度消息的情况下,所述方法还包括:发送所述配置消息所占用的频带信息携带在所述配置消息的调度消息中;
    在所述第一类消息为通过所述控制信道发送的第二类节点专有的控制信息搜索空间的重新配置消息的调度消息的情况下,所述方法还包括:发送所述重新配置消息所占用的频带信息携带在所述重新配置消息的调度消息中。
  17. 根据权利要求2所述的方法,其中,在所述第一类消息为所述第二子类消息的情况下,所述预设规则包括:
    为不同的第一类消息配置不同的频带。
  18. 根据权利要求2所述的方法,其中,在所述第一类消息为所述第二子类消息的情况下,所述预设规则还包括:
    为不同的第一类消息配置不同的控制信道。
  19. 根据权利要求2所述的方法,其中,在所述第一类消息为通过所述控制信道发送的Paging的调度消息的情况下,所述预设规则还包括:
    为第一类Paging消息和第二类Paging消息的发送配置不同的控制信道,
    其中,所述第一类Paging消息为以下任意一种消息:指示系统消息更新的Paging消息、地震海啸预警系统ETWS的Paging消息、商用手机预警系统CMAS的Paging消息,所述第二类Paging消息为除所述第一类Paging消息之外的Paging消息。
  20. 根据权利要求18或者19所述的方法,其中,所述不同的控制信道包括以下至少之一:
    控制信息发送格式不同的控制信道;控制信息大小不同的控制信道。
  21. 根据权利要求2所述的方法,其中,在所述第一类消息为所述第三子类消息的情况下,所述预设规则还包括:
    所述第一类消息发送时所利用的频带资源与以下之一消息的频带资源相同:
    RAR;冲突解决消息Msg4。
  22. 根据权利要求2所述的方法,其中,在所述第一类消息为所述第三子类消息的情况下,所述预设规则还包括:
    所述第一类消息发送时所利用的频带资源由以下至少之一的消息配置:
    RAR;冲突解决消息Msg4;系统信息。
  23. 根据权利要求2所述的方法,其中,在所述第一类消息为所述第三子类消息的情况下,所述预设规则还包括:
    至少根据第二类节点发送的PRACH Preamble所在的频带确定所述第一类消息发送时所利用的频带资源。
  24. 根据权利要求2所述的方法,其中,在所述第一类消息为通过所述控制信道发送的第二类节点专有的控制信息搜索空间的重新配置消息的调度消息的情况下,所述预设规则还包括:
    所述第一类消息发送时所利用的频带资源与所述第二类节点专有的控制信息搜索空间所配置的频带相同。
  25. 根据权利要求1至8、10至13、16至19、21至24中任一项所述的方法,其中,所述第一类节点包括以下至少之一:
    宏基站Macrocell;微基站Microcell;微微基站Picocell;毫微微基站Femtocell;低功率节点LPN;中继站Relay。
  26. 根据权利要求2、4、16、23、24中任一项所述的方法,其中,所述第二类节点为一个以上的终端或者一个以上的终端组。
  27. 一种消息的资源配置装置,包括:
    配置模块,设置为根据以下至少一个数量,并通过预设规则为第一类消息发送时所利用的频带资源进行配置:
    第一类节点为发送所述第一类消息所配置的频带的数量N,其中,N为大于等于1的自然数;
    所述第一类节点配置的第一等级的数量M,其中,M为大于等于1的自然数。
  28. 一种存储介质,设置为存储执行如权利要求1至权利要求26中任一项所述的消息的资源 配置方法的计算机程序。
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