WO2016015609A1 - 用于配置物理信道起始符号的方法以及基站和用户设备 - Google Patents

用于配置物理信道起始符号的方法以及基站和用户设备 Download PDF

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Publication number
WO2016015609A1
WO2016015609A1 PCT/CN2015/085176 CN2015085176W WO2016015609A1 WO 2016015609 A1 WO2016015609 A1 WO 2016015609A1 CN 2015085176 W CN2015085176 W CN 2015085176W WO 2016015609 A1 WO2016015609 A1 WO 2016015609A1
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Prior art keywords
pdsch
ofdm symbol
msg2start
sibstart
pagingstart
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PCT/CN2015/085176
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English (en)
French (fr)
Inventor
刘仁茂
沈兴亚
蒋琦
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夏普株式会社
刘仁茂
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Application filed by 夏普株式会社, 刘仁茂 filed Critical 夏普株式会社
Priority to JP2017502972A priority Critical patent/JP6577013B2/ja
Priority to EP15826585.0A priority patent/EP3177068B1/en
Priority to US15/329,918 priority patent/US10075331B2/en
Publication of WO2016015609A1 publication Critical patent/WO2016015609A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the present invention relates to the field of wireless communication technologies, and more particularly, to a method for configuring a physical channel start symbol, a base station, and a user equipment.
  • MTC Machine Type Communication
  • LTE Long Term Evolution Project
  • MTC Machine Type Communication
  • MTC is a data communication service that does not require human involvement.
  • Large-scale deployment of MTC user equipment can be used in security, tracking, billing, measurement, and consumer electronics.
  • Applications include video surveillance, supply chain tracking, smart meters, and remote monitoring.
  • MTC requires lower power consumption, supports lower data transmission rates and lower mobility.
  • the current LTE system is mainly aimed at human-to-human communication services.
  • the key to achieving the scale competitive advantage and application prospect of MTC services lies in the fact that LTE networks support low-cost MTC devices.
  • MTC equipment needs to be installed in the basement of the residential building or protected by insulated foil, metal window or thick wall of traditional buildings, compared to conventional equipment terminals (such as mobile phones, tablets, etc.) in LTE networks.
  • the air interface will obviously suffer from more severe penetration losses.
  • 3GPP decided to study the design and performance evaluation of MTC devices with additional 20dB coverage enhancement. It is worth noting that MTC devices located in poor network coverage areas have the following characteristics: very low data transmission rate, very loose latency requirements and limited Mobility.
  • the LTE network can further optimize some signaling and/or channels to better support the MTC service.
  • Non-Patent Document RP-140990 New Work Item.
  • the LTE Rel-13 system needs to support the uplink and downlink 1.4MHz radio frequency bandwidth of the MTC user equipment (User Equipment, UE, hereinafter referred to as the narrowband MTC UE) to work in any system bandwidth (for example, 1.4MHz, 3MHz). , 5MHz, 10MHz, 15MHz, 20MHz, etc.).
  • an LTE UE may obtain a physical downlink shared channel (PDSCH) or an enhanced physical downlink control channel (EPDCCH) starting orthogonal frequency division multiplexing (OFDM) through a wideband physical control format indication channel (PCFICH). a symbol to resolve the corresponding PDSCH or EPDCCH channel.
  • PDSCH physical downlink shared channel
  • EPDCCH enhanced physical downlink control channel
  • PCFICH wideband physical control format indication channel
  • a symbol to resolve the corresponding PDSCH or EPDCCH channel For narrowband MTC UEs, it cannot read wideband PCFICH channel information. Therefore, based on the existing LTE standard specifications, the narrowband MTC UE cannot acquire the starting OFDM symbol of the PDSCH or the EPDCCH through the PCFICH, so that the corresponding PDSCH or EPDCCH channel cannot be solved.
  • the present invention provides a method, a base station, and a user equipment for configuring/acquiring a starting OFDM symbol of a PDSCH or an EPDCCH.
  • a base station including: a transmitting unit, configured to transmit a physical downlink control channel M-PDCCH and a physical downlink shared channel PDSCH of an MTC; wherein, the first system broadcast information is pre-set The starting OFDM symbol of the PDSCH of "SIB1"; and the starting OFDM symbol of the M-PDCCH and other PDSCHs configured by SIB1.
  • the initial orthogonal frequency division multiplexing "OFDM" symbol of the PDSCH carrying the system broadcast information is "1 SIBStart "; the initial OFDM symbol of the PDSCH carrying the paging information is “1 PagingStart ";
  • the starting OFDM symbol of the PDSCH of the access response is "1 Msg2Start”; the starting OFDM symbol of the PDSCH carrying the user data is “1 DataStart”; the starting OFDM symbol of the M-PDCCH is "1 MPDCCHStart ".
  • SIBStart , l PagingStart , l Msg2Start, and/or l DataStart and/or l MPDCCHStart are preset .
  • SIBStart , l PagingStart , l Msg2Start, and/or l DataStart and/or l MPDCCHStart are configured by the MIB.
  • SIBStart of the PDSCH is preset ; and l PagingStart , l Msg2Start and/or l DataStart and/or l MPDCCHStart are configured by the MIB.
  • SIBStart and l PagingStart of the PDSCH are preset ; and 1 Msg2Start and/or 1 DataStart and/or 1 MPDCCHStart are configured by the MIB.
  • the initial OFDM symbol of the PDSCH carrying the first system broadcast information “SIB1” and the initial OFDM symbol of the PDSCH carrying the second system broadcast information “SIB2” are preset, or the SIB1 is configured by the MIB.
  • pre-set the PDSCH l SIBStart, PBCH or PDSCH transmission processing unit is configured by the MIB l SIBStart; l PagingStart and configuring the first broadcast system information "SIB1" or the second system information "SIB2", l Msg2Start and / or l DataStart and / or l MPDCCHStart .
  • l Msg2Start or a default starting OFDM symbol is used to transmit a PDSCH carrying or carrying other information and/or data other than SIB, paging and Msg2 information and/or EPDCCH scheduling the PDSCH until dedicated
  • the RRC signaling is for the user to successfully configure a new starting OFDM symbol.
  • the values of l SIBStart , l PagingStart , l Msg2Start , l DataStart , and l MPDCCHStart are the same, partially identical, or different from each other.
  • a user equipment including: a receiving unit configured to receive a physical downlink control channel M-PDCCH and a physical downlink shared channel PDSCH of an MTC; wherein, the first system broadcast information is pre-set The starting OFDM symbol of the PDSCH of "SIB1"; and the starting OFDM symbol of the M-PDCCH and other PDSCH obtained by SIB1.
  • the initial orthogonal frequency division multiplexing "OFDM" symbol of the PDSCH carrying the system broadcast information is "1 SIBStart "; the initial OFDM symbol of the PDSCH carrying the paging information is “l PagingStart ";
  • the starting OFDM symbol of the PDSCH of the access response is "1 Msg2Start”; the starting OFDM symbol of the PDSCH carrying the user data is “1 DataStart”; the starting OFDM symbol of the M-PDCCH is "1 MPDCCHStart ".
  • l SIBStart , l PagingStart , l Msg2Start and/or l DataStart and/or l MPDCCHStart are obtained by means of a preset .
  • l SIBStart , l PagingStart , l Msg2Start and/or l DataStart and/or l MPDCCHStart are obtained by MIB.
  • SIBStart of the PDSCH is obtained by a preset manner; and l PagingStart , l Msg2Start and/or l DataStart and/or l MPDCCHStart are obtained by the MIB.
  • SIBStart and l PagingStart of the PDSCH are obtained by a preset manner; and 1 Msg2Start and/or 1 DataStart and/or 1 MPDCCHStart are obtained by the MIB.
  • the starting OFDM symbol of the PDSCH carrying the first system broadcast information “SIB1” and the starting OFDM symbol of the PDSCH carrying the second system broadcast information “SIB2” are obtained by a preset manner, or by using the MIB. Obtaining a starting OFDM symbol of a PDSCH carrying SIB1 and a starting OFDM symbol of a PDSCH carrying SIB2; and obtaining, by SIB2, starting OFDM symbols l SIBStart , l PagingStart , l Msg2Start, and/or l DataStart of a PDSCH carrying other SIBs / or l MPDCCHStart .
  • the SIBStart of the PDSCH is obtained by a preset manner, or the PBCH reception processing unit obtains 1 SIBStart through the MIB; and is obtained by the first system broadcast information “SIB1” or the second system broadcast information “SIB2”.
  • l PagingStart , l Msg2Start and / or l DataStart and / or l MPDCCHStart is obtained by the first system broadcast information “SIB1” or the second system broadcast information “SIB2”.
  • l Msg2Start or a default starting OFDM symbol is used to receive a PDSCH carrying or carrying information and/or data other than SIB, paging and Msg2 information and/or EPDCCH scheduling the PDSCH until dedicated The RRC signaling successfully obtains a new starting OFDM symbol.
  • the values of l SIBStart , l PagingStart , l Msg2Start , l DataStart , and l MPDCCHStart are the same, partially identical, or different from each other.
  • a method performed by a base station comprising: pre-setting a start OFDM symbol of a PDSCH carrying first system broadcast information "SIB1"; and configuring an M-PDCCH and other PDSCH through SIB1 The starting OFDM symbol.
  • the initial orthogonal frequency division multiplexing "OFDM" symbol of the PDSCH carrying the system broadcast information is "1 SIBStart "; the initial OFDM symbol of the PDSCH carrying the paging information is “1 PagingStart ";
  • the starting OFDM symbol of the PDSCH of the access response is "1 Msg2Start”; the starting OFDM symbol of the PDSCH carrying the user data is “1 DataStart”; the starting OFDM symbol of the M-PDCCH is "1 MPDCCHStart ".
  • SIBStart , l PagingStart , l Msg2Start, and/or l DataStart and/or l MPDCCHStart are preset .
  • SIBStart , l PagingStart , l Msg2Start, and/or l DataStart and/or l MPDCCHStart are configured by the MIB.
  • SIBStart of the PDSCH is pre-set, and l PagingStart , l Msg2Start and/or l DataStart and/or l MPDCCHStart are configured by the MIB.
  • SIBStart and l PagingStart of the PDSCH are preset , and l Msg2Start and/or l DataStart and/or l MPDCCHStart are configured by the MIB.
  • the initial OFDM symbol of the PDSCH carrying the first system broadcast information “SIB1” and the initial OFDM symbol of the PDSCH carrying the second system broadcast information “SIB2” are preset, or the SIB1 is configured by the MIB.
  • the PDSCH l SIBStart set in advance, or by configuring the PDSCH by the MIB l SIBStart; and by a first system information "SIB1" or the second system information "SIB2" Configuration l PagingStart, l Msg2Start and / Or l DataStart and / or l MPDCCHStart .
  • l Msg2Start or a default starting OFDM symbol is used to transmit a PDSCH carrying or carrying other information and/or data other than SIB, paging and Msg2 information and/or EPDCCH scheduling the PDSCH until dedicated
  • the RRC signaling is for the user to successfully configure a new starting OFDM symbol.
  • the values of l SIBStart , l PagingStart , l Msg2Start , l DataStart , and l MPDCCHStart are the same, partially identical, or different from each other.
  • a method performed by a user equipment comprising: presetting a starting OFDM symbol of a PDSCH carrying first system broadcast information "SIB1"; and obtaining an M-PDCCH and other through SIB1 The starting OFDM symbol of the PDSCH.
  • the initial orthogonal frequency division multiplexing "OFDM" symbol of the PDSCH carrying the system broadcast information is "1 SIBStart "; the initial OFDM symbol of the PDSCH carrying the paging information is “1 PagingStart ";
  • the starting OFDM symbol of the PDSCH of the access response is "1 Msg2Start”; the starting OFDM symbol of the PDSCH carrying the user data is “1 DataStart”; the starting OFDM symbol of the M-PDCCH is "1 MPDCCHStart ".
  • l SIBStart , l PagingStart , l Msg2Start and l DataStart and/or EPDCCH's M MPDCCHStart of the PDSCH are obtained in a preset manner.
  • SIBStart , l PagingStart , l Msg2Start , l DataStart, and/or l MPDCCHStart are obtained by MIB.
  • SIBStart of the PDSCH is obtained by a preset manner; and l PagingStart , l Msg2Start and/or l DataStart and/or l MPDCCHStart are obtained by the MIB.
  • SIBStart and l PagingStart of the PDSCH are obtained by a preset manner; and 1 Msg2Start and/or 1 DataStart and/or 1 MPDCCHStart are obtained by the MIB.
  • the starting OFDM symbol of the PDSCH carrying the first system broadcast information “SIB1” and the starting OFDM symbol of the PDSCH carrying the second system broadcast information “SIB2” are obtained by a preset manner, or by using the MIB. Obtaining a starting OFDM symbol of a PDSCH carrying SIB1 and a starting OFDM symbol of a PDSCH carrying SIB2; and obtaining, by SIB2, starting OFDM symbols l SIBStart , l PagingStart , l Msg2Start, and/or l DataStart of a PDSCH carrying other SIBs / or l MPDCCHStart .
  • the PDSCH l SIBStart obtained by means of pre-set, or obtained by the MIB l SIBStart; and l PagingStart obtained by the first broadcast system information "SIB1" or the second system information "SIB2", l Msg2Start and / or l DataStart and / or l MPDCCHStart .
  • l Msg2Start or a default starting OFDM symbol is used to receive a PDSCH carrying or carrying information and/or data other than SIB, paging and Msg2 information and/or EPDCCH scheduling the PDSCH until dedicated The RRC signaling successfully obtains a new starting OFDM symbol.
  • SIBStart l
  • PagingStart l
  • Msg2Start l
  • DataStart l
  • MPDCCHStart l
  • Figure 1 shows a block diagram of a base station in accordance with the present invention.
  • Figure 2 shows a block diagram of a user equipment in accordance with the present invention.
  • Figure 3 shows a general diagram of the initial OFDM symbol configuration in accordance with the present invention.
  • FIG. 4 shows a schematic diagram of configuring a starting OFDM symbol based on a pre-set and MIB mode in accordance with the present invention.
  • FIG. 5 shows a schematic diagram of configuring a starting OFDM symbol based on a pre-set or MIB and SIB mode in accordance with the present invention.
  • FIG. 6 shows a schematic diagram of configuring a starting OFDM symbol based on pre-set or MIB and RRC signaling schemes in accordance with the present invention.
  • FIG. 7 shows a schematic diagram of configuring a starting OFDM symbol based on pre-set or MIB and SIB and RRC signaling schemes in accordance with the present invention.
  • FIG. 8 shows a flow diagram of a method of configuring a starting OFDM symbol by a base station in accordance with the present invention.
  • FIG. 9 shows a flow diagram of a method of acquiring a starting OFDM symbol by a user equipment in accordance with the present invention.
  • Figure 1 shows a block diagram of a base station 100 in accordance with the present invention.
  • the base station 100 includes a physical downlink shared channel transmission processing unit 110, an enhanced physical downlink control channel transmission processing unit 120, and a physical broadcast channel transmission processing unit 130.
  • the base station 100 may include a baseband signal generating unit 140 and a radio frequency transmitting unit 150.
  • the base station includes a transmitting unit, configured to transmit a physical downlink control channel M-PDCCH and a physical downlink shared channel (PDSCH) of the MTC; wherein, a start OFDM symbol of the PDSCH carrying the first system broadcast information “SIB1” is preset; And configuring the M-PDCCH and other PDSCH starting OFDM symbols through SIB1.
  • SIB1 first system broadcast information
  • the base station 100 may also include other functional units necessary for implementing its functions, such as various processors, memories, radio frequency receiving units, baseband signal extracting units, physical uplink channel receiving processing units, and other physical downlink channels. Transmit processing unit and so on. However, for the sake of brevity, a detailed description of these well-known elements, including the baseband signal generating unit 140 and the radio frequency transmitting unit 150, is omitted.
  • FIG. 2 shows a block diagram of a User Equipment UE 200 in accordance with the present invention.
  • the UE 200 includes a physical downlink shared channel reception processing unit 210, an enhanced physical downlink control channel reception processing unit 220, and a physical broadcast channel reception processing unit 230.
  • the UE 200 may include a radio frequency receiving unit 250 and a baseband signal extracting unit 240.
  • the user equipment includes a receiving unit configured to receive a physical downlink control channel M-PDCCH and a physical downlink shared channel PDSCH of the MTC; wherein the initial OFDM of the PDSCH carrying the first system broadcast information “SIB1” is preset a symbol; and an initial OFDM symbol of the M-PDCCH and other PDSCHs obtained through SIB1.
  • the UE 200 also includes other functional units necessary for implementing its functions, such as various processors, memories, radio frequency transmitting units, baseband signal generating units, physical uplink channel transmission processing units, and other physical downlink channel reception. Processing unit and so on. However, a detailed description of these well-known elements (including the radio frequency receiving unit 250 and the baseband signal extracting unit 240) is omitted for the sake of brevity.
  • the PDSCH mainly carries system information (SIB), paging information, random access response (RAR), and unicast data.
  • SIB system information
  • RAR random access response
  • the narrowband MTC UE cannot be obtained by receiving the PCFICH.
  • the starting OFDM symbol of the PDSCH Therefore, it is necessary to design a new scheme to acquire the starting OFDM symbol of the PDSCH carrying the system broadcast information, paging information, random access response or unicast user data.
  • the narrowband MTC UE cannot acquire the resource allocation of the PDSCH and other control information through a Physical Downlink Control Channel (PDCCH).
  • PDCCH Physical Downlink Control Channel
  • the physical downlink control channel M-PDCCH (ie, the narrowband EPDCCH) of the MTC is used to carry the resource allocation and other control information of the PDSCH; 2.
  • the physical downlink control channel is adopted. (ie, no PDSCH and M-PDCCH) PDSCH transmission mode.
  • Existing LTE systems have dedicated EPDCCH (ie, EPDCCH for a specific UE) without defining a common EPDCCH (eg, EPDCCH for common information SIB, paging, and RAR transmission). Therefore, for mode 1, a common M-PDCCH (narrowband EPDCCH) needs to be designed to carry resource allocation or/and other control information of the PDSCH.
  • the common M-PDCCH herein is not only EPDCCH with LTE architecture design, and can refer to any physical downlink control channel of PDSCH that schedules broadcast information or paging information or RAR information; for mode 2, pre-set or/and master information block (Master Information Block) can be used.
  • MIB Master Information Block
  • SIBx refers to one of many SIBs, such as SIB1, SIB2, and SIB3; Msg2 is random access response information, and one Msg2 may include one or more random access response RARs.
  • the PDSCH includes a PDSCH carrying system broadcast information of a narrowband MTC UE or a PDSCH carrying paging information of a narrowband MTC UE, a PDSCH carrying a random access response of a narrowband MTC UE, a PDSCH carrying narrowband MTC UE data, and the like.
  • EPCCH public or private M-PDCCH
  • the number of OFDM symbols of the control channel indicated by the base station on the PCFICH channel may be the same as SIBStart or l PagingStart or l Msg2Start or l DataStart or l MPDCCHStart , or Inconsistent.
  • the PCFICH indicates the number of OFDM symbols used by the base station for PDCCH transmission in a certain subframe
  • l SIBStart , l PagingStart , l Msg2Start , l DataStart, and l MPDCCHStart respectively indicate the PDSCH carrying the system broadcast information.
  • Start OFDM symbol start OFDM symbol of PDSCH carrying paging information, start OFDM symbol of PDSCH carrying random access response, and start OFDM symbol of PDSCH carrying user data and common or dedicated M-PDCCH ( The starting OFDM symbol of EPDCCH).
  • Downstream bandwidth For the definition of 3GPP TS 36.211 V11.3.0, the number of OFDM symbols used for the PDCCH is equal to the CFI value indicated on the PCFICH channel (ie 1 or 2 or 3), when the downlink bandwidth The number of OFDM symbols used for the PDCCH is equal to the CFI value +1 indicated on the PCFICH channel (ie, 2 or 3 or 4).
  • the starting OFDM symbol of the PDSCH refers to the sequence number of the first OFDM symbol used for PDSCH transmission in the first slot within one subframe.
  • the number of OFDM symbols in a slot is (
  • the symbol value of OFDM in one slot should be
  • the starting OFDM symbol of the PDSCH should be equal to the CFI value (when Time) or CFI+1 (when Time).
  • the initial OFDM symbol of the PDSCH corresponding thereto should be 2, that is, the third OFDM symbol from the first slot. Starts the start position of the time domain symbol for the PDSCH channel.
  • the configuration of the starting OFDM symbol of the PDSCH and/or the starting OFDM symbol of the common or dedicated M-PDCCH (EPDCCH) when carrying different information or data is explained below by specific embodiments.
  • the initial OFDM symbol l SIBStart of the PDSCH carrying the system broadcast information, the initial OFDM symbol l PagingStart of the PDSCH carrying the paging information, and the initial OFDM symbol l Msg2Start of the PDSCH carrying the random access response are preset.
  • l SIBStart , l PagingStart , l Msg2Start , l DataStart , and l MPDCCHStart are assigned to ⁇ 1, 2, 3, 4 ⁇ , and they can be configured to the same value or partially identical and partially different values or respective Different values.
  • the base station (specifically, a physical broadcast channel transmission processing unit 130) through the MIB bearer configuration PDSCH system information broadcast start OFDM symbol l SIBStart, paging information carrier PDSCH OFDM symbol l PagingStart starting in this embodiment, random access response carrying the PDSCH start OFDM symbol l Msg2Start, carrying user data start PDSCH OFDM symbol l DataStart public or private, and M-PDCCH (EPDCCH) start OFDM symbol l MPDCCHStart.
  • MIB bearer configuration PDSCH system information broadcast start OFDM symbol l SIBStart, paging information carrier PDSCH OFDM symbol l PagingStart starting in this embodiment, random access response carrying the PDSCH start OFDM symbol l Msg2Start, carrying user data start PDSCH OFDM symbol l DataStart public or private, and M-PDCCH (EPDCCH) start OFDM symbol l MPDCCHStart.
  • the MIB has a total of 24 information bits. 14 bits have been used and there are 10 idle bits.
  • the base station uses the idle bits of the MIB to configure SIBStart , l PagingStart , l Msg2Start , l DataStart, and l MPDCCHStart .
  • l SIBStart , l PagingStart , l Msg2Start , l DataStart and l MPDCCHStart are assigned to ⁇ 1, 2, 3, 4 ⁇ , which can be configured to the same value or partially identical and partially different values or different values. That is, different combinations of idle bits in the MIB are utilized to indicate different starting OFDM symbols.
  • the base station set in advance and using MIB bearer configured PDSCH system information broadcast start OFDM symbol l SIBStart
  • the paging information carrying the PDSCH start OFDM symbol l PagingStart, carrying random The starting OFDM symbol l Msg2Start of the PDSCH of the access response, the starting OFDM symbol l DataStart of the PDSCH carrying the user data, and/or the starting OFDM symbol l MPDCCHStart of the common or dedicated M-PDCCH (EPDCCH).
  • the initial OFDM symbol of the PDSCH carrying the SIB is preset, and the physical broadcast channel transmission processing unit 130 configures the start OFDM symbol l PagingStart of the PDSCH carrying the paging information and the start of the PDSCH carrying the random access response through the MIB.
  • the initial OFDM symbol of the PDSCH carrying the SIB and the initial OFDM symbol l PagingStart of the PDSCH carrying the paging information are preset , and the physical broadcast channel transmission processing unit 130 configures the start of the PDSCH carrying the random access response through the MIB.
  • l SIBStart , l PagingStart , l Msg2Start , l DataStart , and l MPDCCHStart are assigned to ⁇ 1, 2, 3, 4 ⁇ , and they can be configured to the same value or partially identical and partially different values or respective Different values.
  • the starting OFDM symbol of the PDSCH carrying the SIB1 is configured by the physical broadcast channel transmission processing unit 130 in advance, and the starting OFDM symbol of the PDSCH carrying the other SIB is configured by the physical downlink shared channel transmission processing unit 110 through the SIB1.
  • Carrying paging information of the PDSCH start OFDM symbol l PagingStart, the random access response carrying the PDSCH start OFDM symbol l Msg2Start, carrying user data start PDSCH OFDM symbol l DataStart and / or public or private M-PDCCH The starting OFDM symbol of (EPDCCH).
  • the starting OFDM symbol of the PDSCH carrying the SIB1 and the starting OFDM symbol of the PDSCH carrying the SIB2 are configured by the physical broadcast channel transmission processing unit 130 in advance or by the physical broadcast channel, and then configured by the physical downlink shared channel transmission processing unit 110 through the SIB2.
  • Initial OFDM symbol of PDSCH carrying other SIBs The initial OFDM symbol l PagingStart of the PDSCH carrying the paging information, the OFDM start symbol l Msg2Start of the PDSCH carrying the random access response, the starting OFDM symbol l DataStart of the PDSCH carrying the user data, and the common or dedicated M-PDCCH (EPDCCH) The starting OFDM symbol l MPDCCHStart .
  • the initial OFDM symbol l SIBStart of the PDSCH carrying the SIB is configured in advance by the physical broadcast channel transmission processing unit 130, and the PDSCH carrying the paging information is configured by the physical downlink shared channel transmission processing unit 110 through SIB1 or SIB2.
  • the initial OFDM symbol l PagingStart, the random access response carrying the PDSCH start OFDM symbol l Msg2Start, PDSCH carries user data and start OFDM symbol l DataStart public or private M-PDCCH (EPDCCH) start OFDM symbol l MPDCCHStart .
  • l SIBStart , l PagingStart , l Msg2Start , l DataStart and l MPDCCHStart are assigned to ⁇ 1, 2, 3, 4 ⁇ , which can be configured to the same value or partially identical and partially different values or different values.
  • PDSCH as shown in Example 6 of this embodiment, preset using RRC signaling or the MIB and arranged to carry a PDSCH system information to start OFDM symbol l SIBStart, starting the paging information carrying OFDM symbol l PagingStart
  • PDSCH set in advance, or transmitted by a physical broadcast channel processing unit 130 MIB configuration SIB carrying the PDSCH starting OFDM symbol l SIBStart, carrying the paging information of the PDSCH start OFDM symbol l PagingStart, carries random access response the initial OFDM symbol l Msg2Start public or M-PDCCH (EPDCCH) start OFDM symbol l MPDCCHStart.
  • the narrowband MTC UE uses l Msg2Start to receive a PDSCH carrying or carrying other information and/or data other than the SIB, and/or an M-PDCCH (EPDCCH) corresponding to the PDSCH until the UE passes the dedicated RRC (Dedicated or UE) -specific RRC) signaling to obtain a new starting OFDM symbol configuration value. Thereafter, the UE receives the user data using the dedicated RRC configured M-PDCCH (EPDCCH) or/and the starting OFDM symbol of the PDSCH.
  • EPCCH dedicated RRC configured M-PDCCH
  • PDSCH Preferably PDSCH, or set in advance by the transmission processing unit 130 through a physical broadcast channel disposed MIB SIB carrying the PDSCH starting OFDM symbol l SIBStart, carrying the paging information of the PDSCH start OFDM symbol l PagingStart, carries random access response
  • the narrowband MTC UE receives the PDSCH of the information and/or data other than the SIB, paging, and RAR information and/or the M-PDCCH (EPDCCH) corresponding to the PDSCH using the default OFDM symbol of the PDSCH until The UE obtains a new initial OFDM symbol configuration value through dedicated RRC signaling. Thereafter, the UE receives the user data using the dedicated RRC configured M-PDCCH (EPDCCH) or/and the starting OFDM symbol of the PDSCH.
  • l SIBStart , l PagingStart , l Msg2Start , l DataStart , and l MPDCCHStart are assigned to ⁇ 1, 2, 3, 4 ⁇ , and they can be configured to the same value or partially identical and partially different values or respective Different values.
  • the initial OFDM symbol l SIBstart of the PDSCH carrying the system broadcast information and the initial OFDM symbol of the PDSCH carrying the paging information are configured by using preset or MIB and SIB and RRC signaling.
  • l PagingStart the random access response carrying the PDSCH start OFDM symbol l Msg2Start, carrying user data start PDSCH OFDM symbol l DataStart public or private, and M-PDCCH (EPDCCH) start OFDM symbol l MPDCCHStart.
  • the starting OFDM symbol of the PDSCH carrying the SIB1 is configured by the physical broadcast channel transmission processing unit 130 in advance, and the starting OFDM symbol of the PDSCH carrying the other SIB is configured by the physical downlink shared channel transmission processing unit 110 through the SIB1.
  • the narrowband MTC UE uses l Msg2Start to receive a PDSCH carrying or carrying other information and/or data other than the SIB, and/or an M-PDCCH (EPDCCH) corresponding to the PDSCH until the UE passes the dedicated RRC (Dedicated or UE) -specific RRC) signaling to obtain a new starting OFDM symbol configuration value. Thereafter, the UE receives the user data using the dedicated RRC configured M-PDCCH (EPDCCH) or/and the starting OFDM symbol of the PDSCH.
  • EPCCH dedicated RRC configured M-PDCCH
  • the starting OFDM symbol of the PDSCH carrying the SIB1 is configured by the physical broadcast channel transmission processing unit 130 in advance, and the starting OFDM symbol of the PDSCH carrying the other SIB is configured by the physical downlink shared channel transmission processing unit 110 through the SIB1.
  • the narrowband MTC UE receives the PDSCH of the information and/or data other than the SIB, paging, and RAR information and/or the M-PDCCH (EPDCCH) corresponding to the PDSCH using the default OFDM symbol of the PDSCH until The UE obtains a new initial OFDM symbol configuration value through dedicated RRC signaling. Thereafter, the UE receives the user data using the dedicated RRC configured M-PDCCH (EPDCCH) or/and the starting OFDM symbol of the PDSCH.
  • EPDCCH dedicated RRC configured M-PDCCH
  • the starting OFDM symbol carrying the PDSCH of the SIB1 and the starting OFDM symbol carrying the PDSCH of the SIB2 are configured by the physical broadcast channel transmission processing unit 130 in advance, or configured by the physical downlink shared channel transmission processing unit 110 through the SIB2 configuration bearer.
  • Initial OFDM symbol of PDSCH of other SIBs Carrying paging information of the PDSCH start OFDM symbol l PagingStart, the random access response carrying the PDSCH start OFDM symbol l Msg2Start public or M-PDCCH (EPDCCH) start OFDM symbol.
  • the narrowband MTC UE uses l Msg2Start to receive a PDSCH carrying or carrying other information and/or data other than the SIB, and/or an M-PDCCH (EPDCCH) corresponding to the PDSCH until the UE passes the dedicated RRC (Dedicated or UE) -specific RRC) signaling to obtain a new starting OFDM symbol configuration value. Thereafter, the UE receives the user data using the dedicated RRC configured M-PDCCH (EPDCCH) or/and the starting OFDM symbol of the PDSCH.
  • EPCCH dedicated RRC configured M-PDCCH
  • the starting OFDM symbol carrying the PDSCH of the SIB1 and the starting OFDM symbol carrying the PDSCH of the SIB2 are configured by the physical broadcast channel transmission processing unit 130 in advance, or configured by the physical downlink shared channel transmission processing unit 110 through the SIB2 configuration bearer.
  • Initial OFDM symbol of PDSCH of other SIBs Carrying paging information of the PDSCH start OFDM symbol l PagingStart, the random access response carrying the PDSCH start OFDM symbol l Msg2Start public or M-PDCCH (EPDCCH) start OFDM symbol.
  • the narrowband MTC UE receives the PDSCH of the information and/or data other than the SIB, paging, and RAR information and/or the M-PDCCH (EPDCCH) corresponding to the PDSCH using the default OFDM symbol of the PDSCH until The UE obtains a new initial OFDM symbol configuration value through dedicated RRC signaling. Thereafter, the UE receives the user data using the dedicated RRC configured M-PDCCH (EPDCCH) or/and the starting OFDM symbol of the PDSCH.
  • EPDCCH dedicated RRC configured M-PDCCH
  • the initial OFDM symbol l SIBStart of the PDSCH carrying the SIB is configured in advance by the physical broadcast channel transmission processing unit 130, and the PDSCH carrying the paging information is configured by the physical downlink shared channel transmission processing unit 110 through SIB1 or SIB2.
  • start OFDM symbol l PagingStart the random access response carrying the PDSCH start OFDM symbol l Msg2Start public or M-PDCCH (EPDCCH) start OFDM symbol.
  • the narrowband MTC UE uses l Msg2Start to receive a PDSCH carrying or carrying other information and/or data other than the SIB, and/or an M-PDCCH (EPDCCH) corresponding to the PDSCH until the UE passes the dedicated RRC (Dedicated or UE) -specific RRC) signaling to obtain a new starting OFDM symbol configuration value. Thereafter, the UE receives the user data using the dedicated RRC configured M-PDCCH (EPDCCH) or/and the starting OFDM symbol of the PDSCH.
  • EPCCH dedicated RRC configured M-PDCCH
  • the starting OFDM symbol l SIBStart of the PDSCH carrying the SIB is configured in advance by the physical broadcast channel transmission processing unit 130, and the PDSCH carrying the other SIBs is configured by the physical downlink shared channel transmission processing unit 110 through SIB1 or SIB2.
  • Initial OFDM symbol Carrying paging information of the PDSCH start OFDM symbol l PagingStart, the random access response carrying the PDSCH start OFDM symbol l Msg2Start public or M-PDCCH (EPDCCH) start OFDM symbol.
  • the narrowband MTC UE receives the PDSCH of the information and/or data other than the SIB, paging, and RAR information and/or the M-PDCCH (EPDCCH) corresponding to the PDSCH using the default OFDM symbol of the PDSCH until The UE obtains a new initial OFDM symbol configuration value through dedicated RRC signaling. Thereafter, the UE receives the user data using the dedicated RRC configured M-PDCCH (EPDCCH) or/and the starting OFDM symbol of the PDSCH.
  • EPDCCH dedicated RRC configured M-PDCCH
  • l SIBStart , l PagingStart , l Msg2Start , l DataStart and l MPDCCHStart are assigned to ⁇ 1, 2, 3, 4 ⁇ , which can be configured to the same value or partially identical and partially different values or different values.
  • TTI Transmission Time Interval
  • CFI+1 when Time
  • EPDSCH PDSCH starting OFDM symbol configured by the base station for the narrowband MTC UE or/and the starting OFDM symbol of the common or/and dedicated M-PDCCH (EPDCCH) has the following requirements and the corresponding base station and narrowband MTC UE Code of conduct:
  • the CFI value set by the base station (when Time) or CFI value +1 (when Time) shall be equal to the starting OFDM symbol of the PDSCH of the bearer system broadcast information configured by the base station to the narrowband MTC UE.
  • the OFDM start symbol of the PDSCH is set to 1 SIBStart .
  • the base station separately transmits the system broadcast information to the narrowband MTC UE, the base station Set CFI value (when Time) or CFI+1 value (when The start OFDM symbol l SIBStart of the PDSCH of the bearer system broadcast information configured by the base station to the narrowband MTC UE may not be equal.
  • the base station will perform mapping of the resource element (Resource Element, RE) of the PDSCH carrying the system broadcast information of the narrowband MTC UE from the symbol starting with the OFDM symbol being 1 SIBStart . If the CFI value (when Time) or CFI+1 value (when When the time is greater than 1 SIBStart , the base station will perform mapping of the resource elements of the PDSCH carrying the system broadcast information of the narrowband MTC UE from the symbol starting with the OFDM symbol being 1 SIBStart .
  • the base station performs a puncturing process on the resource unit in which the PDSCH of the system broadcast information carrying the narrowband MTC UE overlaps with the wideband PDCCH.
  • the initial OFDM symbol of the PDSCH is set to 1 SIBStart .
  • the base station will start the PDSCH carrying the paging information of the narrowband MTC UE or the narrowband MTC UE from the symbol starting with the OFDM symbol of 1 PagingStart or l Msg2Start or l DataStart . Mapping of a random access response PDSCH or a resource unit of a PDSCH carrying narrowband MTC UE data.
  • the base station will start the PDSCH carrying the paging information of the narrowband MTC UE or the PDSCH carrying the random access response of the narrowband MTC UE from the symbol starting with the OFDM symbol of 1 PagingStart or l Msg2Start or l DataStart Mapping of resource elements of the PDSCH of narrowband MTC UE data.
  • the base station performs a puncturing process on the PDSCH carrying the paging information of the narrowband MTC UE or the PDSCH carrying the random access response of the narrowband MTC UE or the resource unit overlapping the PDSCH carrying the narrowband MTC UE data and the wideband PDCCH.
  • the initial OFDM symbol of the PDSCH is correspondingly set to 1 PagingStart Or l Msg2Start or l DataStart .
  • the CFI value set by the base station (when Time) or CFI+1 value (when The time may be unequal to the start OFDM symbol of the common M-PDCCH (EPDCCH) or the newly designed common physical downlink control channel or the other physical downlink control channel or the start OFDM symbol of the dedicated M-PDCCH (EPDCCH).
  • the base station will The common M-PDCCH (EPDCCH) or the newly designed common physical downlink control channel or the start OFDM symbol of the other physical downlink control channel or the start OFDM symbol of the dedicated M-PDCCH (EPDCCH) starts to perform the above common M-PDCCH (EPDCCH) Or mapping of a newly designed common physical downlink control channel or other physical downlink control channel or resource unit of a dedicated M-PDCCH (EPDCCH).
  • CFI value (when Time) or CFI+1 value (when The base station will be larger than the common OFDM symbol of the common M-PDCCH (EPDCCH) or the newly designed common physical downlink control channel or other physical downlink control channel or the start OFDM symbol of the dedicated M-PDCCH (EPDCCH).
  • the M-PDCCH (EPDCCH) or the newly designed common physical downlink control channel or the start OFDM symbol of the other physical downlink control channel or the start OFDM symbol of the dedicated M-PDCCH (EPDCCH) starts to perform the above common M-PDCCH (EPDCCH) or Mapping of newly designed common physical downlink control channels or resource units of other physical downlink control channels or dedicated M-PDCCHs (EPDCCHs).
  • the base station performs a puncturing process on the common M-PDCCH (EPDCCH) or the newly designed common physical downlink control channel or the other physical downlink control channel or the dedicated M-PDCCH (EPDCCH) and the wideband PDCCH.
  • EPDCCH common M-PDCCH
  • EPDCCH dedicated M-PDCCH
  • the narrowband MTC UE receives the above-mentioned common M-PDCCH (EPDCCH) or a newly designed common physical downlink control channel or other physical downlink control channel or a dedicated M-PDCCH (EPDCCH), the above-mentioned common M-PDCCH (EPDCCH) or newly designed
  • the starting OFDM symbol of the common physical downlink control channel or other physical downlink control channel or the starting OFDM symbol of the dedicated M-PDCCH (EPDCCH) is correspondingly set to the initial OFDM symbol configured for it in the above embodiment.
  • method 800 shows a flow diagram of a method of configuring a starting OFDM symbol by a base station in accordance with the present invention. As shown in FIG. 8, method 800 begins at step S810.
  • the base station processes the information to be transmitted. Specifically, the base station processes the system broadcast information "SIB", paging information, random access response, and user data to be transmitted, processes the downlink control information to be transmitted, and processes the main information block "MIB" to be transmitted. Process it.
  • SIB system broadcast information
  • MIB main information block
  • the base station configures a starting OFDM symbol of the physical downlink. Specifically, for the narrowband machine type communication user equipment, the initial orthogonal frequency division multiplexing "OFDM" symbol “1 SIBStart " of the PDSCH carrying the system broadcast information, and the initial OFDM symbol “l PagingStart " of the PDSCH carrying the paging information are configured.
  • method 800 ends at step S840.
  • method 900 shows a flow diagram of a method of acquiring a starting OFDM symbol by a user equipment in accordance with the present invention. As shown in FIG. 9, method 900 begins at step S910.
  • the user equipment processes the information to be transmitted. Specifically, the user equipment processes the received system broadcast information “SIB”, paging information, random access response, and user data, processes the received downlink control information, and processes the received primary information block “MIB”. .
  • SIB system broadcast information
  • MIB received primary information block
  • the user equipment obtains the starting OFDM symbol of the physical downlink.
  • Starting orthogonal Specifically, the user device obtains the PDSCH system information carrier frequency division multiplexing "OFDM" symbol "l SIBStart", carrying the paging information of the PDSCH start OFDM symbol “l PagingStart", a random access bearer
  • method 900 ends at step S940.
  • the above embodiments of the present invention may be implemented by software, hardware or software and hard. A combination of the two is achieved.
  • various components within the device in the above embodiments may be implemented by various devices including, but not limited to, analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, programmable processors, dedicated Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), Programmable Logic Devices (CPLDs), and more.
  • DSP digital signal processing
  • ASICs dedicated Integrated Circuits
  • FPGAs Field Programmable Gate Arrays
  • CPLDs Programmable Logic Devices
  • embodiments of the invention disclosed herein may be implemented on a computer program product.
  • the computer program product is a product having a computer readable medium encoded with computer program logic that, when executed on a computing device, provides related operations to implement The above technical solution of the present invention.
  • the computer program logic When executed on at least one processor of a computing system, the computer program logic causes the processor to perform the operations (methods) described in the embodiments of the present invention.
  • Such an arrangement of the present invention is typically provided as software, code and/or other data structures, or such as one or more, that are arranged or encoded on a computer readable medium such as an optical medium (e.g., CD-ROM), floppy disk, or hard disk.
  • Software or firmware or such a configuration may be installed on the computing device such that one or more processors in the computing device perform the technical solutions described in the embodiments of the present invention.

Abstract

本发明提供了一种基站，包括：发射单元，用于发射MTC的物理下行控制信道(M-PDCCH)和物理下行共享信道(PDSCH)；其中，预先设置承载第一系统广播信息"SIB1"的PDSCH的起始OFDM符号；以及通过SIB1配置M-PDCCH和其它的PDSCH的起始OFDM符号。本发明还提供了一种用户设备以及相应的方法。

Description

用于配置物理信道起始符号的方法以及基站和用户设备 技术领域
本发明涉及无线通信技术领域，更具体地，本发明涉及物理信道起始符号的配置方法、基站和用户设备。
背景技术
随着移动通信的快速增长和技术的巨大进步，世界将走向一个完全互联互通的网络社会，即任何人或任何东西在任何时间和任何地方都可以获得信息和共享数据。预计到2020年，互联设备的数量将达到500亿部，其中仅有100亿部左右可能是手机和平板电脑，其它的则不是与人对话的机器，而是彼此对话的机器。因此，如何设计系统以支持数量庞大的机器通信设备是一项需要深入研究的课题。
在第三代合作伙伴计划(3GPP)的长期演进项目(LTE)的标准中，将机器对机器的通信称为机器类型通信(Machine Type Communication，MTC)。MTC是一种不需要人为参与的数据通信服务。大规模的MTC用户设备部署，可以用于安全、跟踪、付账、测量以及消费电子等领域，具体涉及的应用包括视频监控、供货链跟踪、智能电表，远程监控等。MTC要求较低的功率消耗，支持较低的数据传输速率和较低的移动性。目前的LTE系统主要是针对人与人的通信服务。而实现MTC服务的规模竞争优势及应用前景的关键在于LTE网络支持低成本的MTC设备。
另外，一些MTC设备需要安装在居民楼地下室或者由绝缘箔片、金属护窗或者传统建筑物的厚墙保护的位置，相比较LTE网络中常规设备终端(如手机，平板电脑等)，这些设备的空中接口将明显遭受更严重的穿透损失。3GPP决定研究附加20dB覆盖增强的MTC设备的方案设计与性能评估，值得注意的是，位于糟糕网络覆盖区域的MTC设备具有以下特点：非常低的数据传输速率、非常宽松的延时要求以及有限的移动性。针对以上MTC特点，LTE网络可以进一步优化一些信令和/或信道用以更好地支持MTC业务。
为此，在2014年6月举行的3GPP RAN#64次全会上，提出了一个新的面向Rel-13的低复杂性和覆盖增强的MTC的工作项目(参见非专利文献：RP-140990New Work Item on Even Lower Complexity and Enhanced Coverage LTE UE for MTC，Ericsson，NSN)。在该工作项目的描述中，LTE Rel-13系统需要支持上下行1.4MHz射频带宽的MTC用户设备(User Equipment，UE，以下称为窄带MTC UE)工作在任意的系统带宽(例如1.4MHz、3MHz、5MHz、10MHz、15MHz、20MHz等等)下。在现有的LTE系统中，LTE UE通过宽带的物理控制格式指示信道(PCFICH)可以获得物理下行共享信道(PDSCH)或增强物理下行控制信道(EPDCCH)的起始正交频分复用(OFDM)符号，从而解出相应的PDSCH或EPDCCH信道。而对窄带MTC UE而言，它不能读取宽带的PCFICH信道信息。因此，基于现有的LTE标准规范，窄带MTC UE不能通过PCFICH获取PDSCH或EPDCCH的起始OFDM符号，从而不能解出相应的PDSCH或EPDCCH信道。
因此，针对窄带MTC UE，需要一种新的方案以获取PDSCH或EPDCCH的起始OFDM符号。
发明内容
为了解决上述技术问题，本发明提供了用于配置/获取PDSCH或EPDCCH的起始OFDM符号的方法、基站和用户设备。
具体地，根据本发明的一个方面，提供了一种基站，包括：发射单元，用于发射MTC的物理下行控制信道M-PDCCH和物理下行共享信道PDSCH；其中，预先设置承载第一系统广播信息“SIB1”的PDSCH的起始OFDM符号；以及通过SIB1配置M-PDCCH和其它的PDSCH的起始OFDM符号。
在一个实施例中，承载系统广播信息的PDSCH的起始正交频分复用“OFDM”符号为“lSIBStart”；承载寻呼信息的PDSCH的起始OFDM符号为“lPagingStart”；承载随机接入响应的PDSCH的起始OFDM符号为“lMsg2Start”；承载用户数据的PDSCH的起始OFDM符号为“lDataStart”； M-PDCCH的起始OFDM符号为“lMPDCCHStart”。
在一个实施例中，预先设置lSIBStart、lPagingStart、lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，通过MIB来配置lSIBStart、lPagingStart、lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，预先设置PDSCH的lSIBStart；以及通过MIB来配置lPagingStart、lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，预先设置PDSCH的lSIBStart和lPagingStart；以及通过MIB来配置lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，预先设置承载第一系统广播信息“SIB1”的PDSCH的起始OFDM符号和承载第二系统广播信息“SIB2”的PDSCH的起始OFDM符号，或者通过MIB来配置承载SIB1的PDSCH的起始OFDM符号和承载SIB2的PDSCH的起始OFDM符号；以及通过SIB2配置承载其它SIB的PDSCH的起始OFDM符号lSIBStart、lPagingStart、lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，预先设置PDSCH的lSIBStart，或者PBCH发射处理单元通过MIB来配置PDSCH的lSIBStart；以及通过第一系统广播信息“SIB1”或第二系统广播信息“SIB2”配置lPagingStart、lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，采用lMsg2Start或默认的起始OFDM符号来发射承载除SIB、寻呼和Msg2信息之外的其它信息和/或数据的PDSCH或/和调度该PDSCH的EPDCCH，直到通过专用RRC信令为用户成功配置新的起始OFDM符号为止。
在一个实施例中，lSIBStart、lPagingStart、lMsg2Start、lDataStart以及lMPDCCHStart的取值彼此相同、部分相同或各自不同。
根据本发明的另一方面，提供了一种用户设备，包括：接收单元，被配置为接收MTC的物理下行控制信道M-PDCCH和物理下行共享信道PDSCH；其中，预先设置承载第一系统广播信息“SIB1”的PDSCH的起始OFDM符号；以及通过SIB1获得M-PDCCH和其它的PDSCH的起始OFDM符号。
在一个实施例中，承载系统广播信息的PDSCH的起始正交频分复 用“OFDM”符号为“lSIBStart”；承载寻呼信息的PDSCH的起始OFDM符号为“lPagingStart”；承载随机接入响应的PDSCH的起始OFDM符号为“lMsg2Start”；承载用户数据的PDSCH的起始OFDM符号为“lDataStart”；M-PDCCH的起始OFDM符号为“lMPDCCHStart”。
在一个实施例中，通过预先设置的方式来获得lSIBStart、lPagingStart、lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，通过MIB来获得lSIBStart、lPagingStart、lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，通过预先设置的方式来获得PDSCH的lSIBStart；以及通过MIB来获得lPagingStart、lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，通过预先设置的方式来获得PDSCH的lSIBStart和lPagingStart；以及通过MIB来获得lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，通过预先设置的方式来获得承载第一系统广播信息“SIB1”的PDSCH的起始OFDM符号和承载第二系统广播信息“SIB2”的PDSCH的起始OFDM符号，或者通过MIB来获得承载SIB1的PDSCH的起始OFDM符号和承载SIB2的PDSCH的起始OFDM符号；以及通过SIB2获得承载其它SIB的PDSCH的起始OFDM符号lSIBStart、lPagingStart、lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，通过预先设置的方式来获得PDSCH的lSIBStart，或者PBCH接收处理单元通过MIB来获得lSIBStart；以及通过第一系统广播信息“SIB1”或第二系统广播信息“SIB2”获得lPagingStart、lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，采用lMsg2Start或默认的起始OFDM符号来接收承载除SIB、寻呼和Msg2信息之外的其它信息和/或数据的PDSCH或/和调度该PDSCH的EPDCCH，直到通过专用RRC信令成功获得新的起始OFDM符号为止。
在一个实施例中，lSIBStart、lPagingStart、lMsg2Start、lDataStart以及lMPDCCHStart的取值彼此相同、部分相同或各自不同。
根据本发明的另一方面，提供了一种由基站执行的方法，包括：预先设置承载第一系统广播信息“SIB1”的PDSCH的起始OFDM符号；以及通过SIB1配置M-PDCCH和其它的PDSCH的起始OFDM符号。
在一个实施例中，承载系统广播信息的PDSCH的起始正交频分复用“OFDM”符号为“lSIBStart”；承载寻呼信息的PDSCH的起始OFDM符号为“lPagingStart”；承载随机接入响应的PDSCH的起始OFDM符号为“lMsg2Start”；承载用户数据的PDSCH的起始OFDM符号为“lDataStart”；M-PDCCH的起始OFDM符号为“lMPDCCHStart”。
在一个实施例中，预先设置lSIBStart、lPagingStart、lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，通过MIB来配置lSIBStart、lPagingStart、lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，预先设置PDSCH的lSIBStart，以及通过MIB来配置lPagingStart、lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，预先设置PDSCH的lSIBStart和lPagingStart，以及通过MIB来配置lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，预先设置承载第一系统广播信息“SIB1”的PDSCH的起始OFDM符号和承载第二系统广播信息“SIB2”的PDSCH的起始OFDM符号，或者通过MIB来配置承载SIB1的PDSCH的起始OFDM符号和承载SIB2的PDSCH的起始OFDM符号；以及通过SIB2配置承载其它SIB的PDSCH的起始OFDM符号lSIBStart、lPagingStart、lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，预先设置PDSCH的lSIBStart，或者通过MIB来配置PDSCH的lSIBStart；以及通过第一系统广播信息“SIB1”或第二系统广播信息“SIB2”配置lPagingStart、lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，采用lMsg2Start或默认的起始OFDM符号来发射承载除SIB、寻呼和Msg2信息之外的其它信息和/或数据的PDSCH或/和调度该PDSCH的EPDCCH，直到通过专用RRC信令为用户成功配置新的起始OFDM符号为止。
在一个实施例中，lSIBStart、lPagingStart、lMsg2Start、lDataStart以及lMPDCCHStart的取值彼此相同、部分相同或各自不同。
根据本发明的另一方面，提供了一种由用户设备执行的方法，包括：预先设置承载第一系统广播信息“SIB1”的PDSCH的起始OFDM符号；以及通过SIB1获得M-PDCCH和其它的PDSCH的起始OFDM符号。
在一个实施例中，承载系统广播信息的PDSCH的起始正交频分复用“OFDM”符号为“lSIBStart”；承载寻呼信息的PDSCH的起始OFDM符号为“lPagingStart”；承载随机接入响应的PDSCH的起始OFDM符号为“lMsg2Start”；承载用户数据的PDSCH的起始OFDM符号为“lDataStart”；M-PDCCH的起始OFDM符号为“lMPDCCHStart”。
在一个实施例中，通过预先设置的方式来获得PDSCH的lSIBStart、lPagingStart、lMsg2Start和lDataStart和/或EPDCCH的lMPDCCHStart。
在一个实施例中，通过MIB来获得lSIBStart、lPagingStart、lMsg2Start、lDataStart和/或lMPDCCHStart。
在一个实施例中，通过预先设置的方式来获得PDSCH的lSIBStart；以及通过MIB来获得lPagingStart、lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，通过预先设置的方式来获得PDSCH的lSIBStart和lPagingStart；以及通过MIB来获得lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，通过预先设置的方式来获得承载第一系统广播信息“SIB1”的PDSCH的起始OFDM符号和承载第二系统广播信息“SIB2”的PDSCH的起始OFDM符号，或者通过MIB来获得承载SIB1的PDSCH的起始OFDM符号和承载SIB2的PDSCH的起始OFDM符号；以及通过SIB2获得承载其它SIB的PDSCH的起始OFDM符号lSIBStart、lPagingStart、lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，通过预先设置的方式来获得PDSCH的lSIBStart，或者通过MIB来获得lSIBStart；以及通过第一系统广播信息“SIB1”或第二系统广播信息“SIB2”获得lPagingStart、lMsg2Start和/或lDataStart和/或lMPDCCHStart。
在一个实施例中，采用lMsg2Start或默认的起始OFDM符号来接收承载除SIB、寻呼和Msg2信息之外的其它信息和/或数据的PDSCH或/和调 度该PDSCH的EPDCCH，直到通过专用RRC信令成功获得新的起始OFDM符号为止。
在一个实施例中，
Figure PCTCN2015085176-appb-000001
lSIBStart、lPagingStart、lMsg2Start、lDataStart以及lMPDCCHStart的取值彼此相同、部分相同或各自不同。
附图说明
通过下文结合附图的详细描述，本发明的上述和其它特征将会变得更加明显，其中：
图1示出了根据本发明的基站的框图。
图2示出了根据本发明的用户设备的框图。
图3示出了根据本发明的起始OFDM符号配置总图。
图4示出了根据本发明的基于预先设置和MIB方式配置起始OFDM符号的示意图。
图5示出了根据本发明的基于预先设置或MIB和SIB方式配置起始OFDM符号的示意图。
图6示出了根据本发明的基于预先设置或MIB和RRC信令方式配置起始OFDM符号的示意图。
图7示出了根据本发明的基于预先设置或MIB和SIB和RRC信令方式配置起始OFDM符号的示意图。
图8示出了根据本发明由基站配置起始OFDM符号的方法的流程图。
图9示出了根据本发明由用户设备获取起始OFDM符号的方法的流程图。
具体实施方式
下面结合附图和具体实施方式对本发明进行详细阐述。应当注意，本发明不应局限于下文所述的具体实施方式。另外，为了简便起见，省略了对与本发明没有直接关联的公知技术的详细描述，以防止对本发明的理解造成混淆。
下文以LTE移动通信系统及其后续的演进版本作为示例应用环境， 具体描述了根据本发明的多个实施方式。然而，需要指出的是，本发明不限于以下实施方式，而是可适用于更多其它的无线通信系统，例如今后的5G蜂窝通信系统。
图1示出了根据本发明的基站100的框图。如图所示，基站100包括：物理下行共享信道发射处理单元110、增强物理下行控制信道发射处理单元120和物理广播信道发射处理单元130。此外，基站100可以包括基带信号生成单元140和射频发射单元150。备选地，该基站包括发射单元，用于发射MTC的物理下行控制信道M-PDCCH和物理下行共享信道PDSCH；其中，预先设置承载第一系统广播信息“SIB1”的PDSCH的起始OFDM符号；以及通过SIB1配置M-PDCCH和其它的PDSCH的起始OFDM符号。本领域技术人员应理解，基站100还可以包括实现其功能所必需的其他功能单元，如各种处理器、存储器、射频接收单元、基带信号提取单元、物理上行信道接收处理单元和其它物理下行信道发射处理单元等等。然而为了简便，省略了这些公知元件(包括基带信号生成单元140和射频发射单元150)的详细描述。
图2示出了根据本发明的用户设备UE 200的框图。如图所示，UE200包括：物理下行共享信道接收处理单元210、增强物理下行控制信道接收处理单元220和物理广播信道接收处理单元230。此外，UE 200可以包括射频接收单元250和基带信号提取单元240。备选地，该用户设备包括接收单元，被配置为接收MTC的物理下行控制信道M-PDCCH和物理下行共享信道PDSCH；其中，预先设置承载第一系统广播信息“SIB1”的PDSCH的起始OFDM符号；以及通过SIB1获得M-PDCCH和其它的PDSCH的起始OFDM符号。本领域技术人员应理解，UE 200还包括实现其功能所必需的其他功能单元，如各种处理器、存储器、射频发射单元、基带信号生成单元、物理上行信道发射处理单元和其它物理下行信道接收处理单元等等。然而为了简便，省略了这些公知元件(包括射频接收单元250和基带信号提取单元240)的详细描述。
PDSCH主要承载系统信息(SIB)、寻呼信息、随机接入响应(RAR)以及单播数据等。一方面，窄带MTC UE不能通过接收PCFICH来获取 PDSCH的起始OFDM符号。因而，需要设计新的方案来获取承载系统广播信息、寻呼信息、随机接入响应或单播用户数据的PDSCH的起始OFDM符号。另一方面，窄带MTC UE不能通过物理下行控制信道(Physical Downlink Control Channel，PDCCH)来获取PDSCH的资源分配和其它的控制信息。有两种方式可以实现窄带MTC UE的PDSCH传输：1.利用MTC的物理下行控制信道M-PDCCH(即窄带的EPDCCH)来承载PDSCH的资源分配和其它控制信息；2.采用没有物理下行控制信道(即没有PDCCH和M-PDCCH)的PDSCH传输方式。现有的LTE系统有专用的EPDCCH(即针对具体UE的EPDCCH)，而没有定义公共的EPDCCH(例如，针对公共信息SIB、寻呼和RAR等传输的EPDCCH)。因此，对于方式1，需要设计公共的M-PDCCH(窄带EPDCCH)来承载PDSCH的资源分配或/和其它控制信息，需注意的是，此处的公共M-PDCCH(窄带EPDCCH)不仅仅指现有LTE架构设计的EPDCCH，而且可以指任何调度承载系统广播信息或寻呼信息或RAR等信息的PDSCH的物理下行控制信道；对于方式2，可以采用预先设置或/和主信息块(Master Information Block，MIB)或/和SIBx或/和Msg2或/和专用的RRC(Radio Resource Control，RRC)信令来承载或配置窄带MTC UE的PDSCH资源分配或/和其它控制信息。其中，SIBx是指SIB1、SIB2、SIB3等许多SIBs中的一个；Msg2是随机接入响应信息，一个Msg2可以包含一个或多个随机接入响应RARs。
如图3所示，配置PDSCH和公共或专用M-PDCCH(EPDCCH)的起始OFDM符号的方式主要有以下四种：预先设置、MIB配置、SIB配置和RRC配置。PDSCH包括承载窄带MTC UE的系统广播信息的PDSCH或承载窄带MTC UE的寻呼信息的PDSCH或承载窄带MTC UE的随机接入响应的PDSCH或承载窄带MTC UE数据的PDSCH等等。可以通过以上四种方式的不同组合来配置承载窄带MTC UE的系统广播信息的PDSCH的起始OFDM符号lSIBStart或承载窄带MTC UE的寻呼信息的PDSCH的起始OFDM符号lPagingStart或承载窄带MTC UE的随机接入响应的PDSCH的起始OFDM符号lMsg2Start或承载窄带MTC UE数据的PDSCH的起始OFDM符号lDataStart或公共或专用M-PDCCH(EPDCCH)的起始OFDM符号lMPDCCHStart。
基站在PCFICH信道上指示的控制信道的OFDM符号数(Control Fromat Indicator，CFI值归属于{1，2，3})可以和lSIBStart或lPagingStart或lMsg2Start或lDataStart或lMPDCCHStart一致，也可以不一致。需要注意的是，PCFICH指示的是：在某个子帧中，基站用于PDCCH传输的OFDM符号数，而lSIBStart、lPagingStart、lMsg2Start、lDataStart和lMPDCCHStart则分别指示承载系统广播信息的PDSCH的起始OFDM符号、承载寻呼信息的PDSCH的起始OFDM符号、承载随机接入响应的PDSCH的起始OFDM符号、以及承载用户数据的PDSCH的起始OFDM符号以及公共或专用M-PDCCH(EPDCCH)的起始OFDM符号。当下行带宽
Figure PCTCN2015085176-appb-000002
(
Figure PCTCN2015085176-appb-000003
的定义参见3GPP TS 36.211V11.3.0)时，用于PDCCH的OFDM符号数等于PCFICH信道上指示的CFI值(即为1或2或3)，当下行带宽
Figure PCTCN2015085176-appb-000004
时，用于PDCCH的OFDM符号数等于PCFICH信道上指示的CFI值+1(即为2或3或4)。而PDSCH的起始OFDM符号是指：在一个子帧内的第一个时隙中，用于PDSCH传输的第一个OFDM符号的序号。对于常规的循环前缀(Cyclic Prefix，CP)而言，一个时隙内的OFDM符号数为
Figure PCTCN2015085176-appb-000005
(
Figure PCTCN2015085176-appb-000006
的定义可以参见3GPP TS36.211V11.3.0)，而一个时隙内的OFDM的符号取值应为
Figure PCTCN2015085176-appb-000007
在现有LTE系统中，PDSCH的起始OFDM符号应等于CFI值(当
Figure PCTCN2015085176-appb-000008
时)或CFI+1(当
Figure PCTCN2015085176-appb-000009
时)。例如，当下行控制信道的OFDM符号数(即CFI值或CFI值+1)为2时，与其对应的PDSCH的起始OFDM符号应为2，即从第一个时隙的第三个OFDM符号开始为PDSCH信道的时域符号的开始位置。
以下通过具体实施方式来阐述承载不同信息或数据时的PDSCH的起始OFDM符号和/或公共或专用M-PDCCH(EPDCCH)的起始OFDM符号的配置。
实施例1
在此实施例中，预先设置承载系统广播信息的PDSCH的起始OFDM符号lSIBStart、承载寻呼信息的PDSCH的起始OFDM符号lPagingStart、承载随机接入响应的PDSCH的起始OFDM符号lMsg2Start、承载用户数据的PDSCH的起始OFDM符号lDataStart和/或公共或专用M-PDCCH(EPDCCH)的起始OFDM符号lMPDCCHStart。
在此实施例中，lSIBStart、lPagingStart、lMsg2Start、lDataStart和lMPDCCHStart归属于{1，2，3，4}，可以将它们配置成相同的值或部分相同和部分不同的值或各自不同的值。例如，可以进行如下设置：lSIBStart＝lPagingStart＝lMsg2Start＝lDataStart＝lMPDCCHStart或lSIBStart＝lPagingStart＝lMsg2Start≠lDataStart＝lMPDCCHStart或lSIBStart＝lPagingStart≠lMsg2Start＝lDataStart＝lMPDCCHStart或lSIBStart≠lPagingStart＝lMsg2Start＝lDataStart＝lMPDCCHStart或lSIBStart≠lPagingStart≠lMsg2Start≠lDataStart≠lMPDCCHStart等等。
实施例2
在此实施例中，基站(具体地，物理广播信道发射处理单元130)通过MIB配置承载系统广播信息的PDSCH的起始OFDM符号lSIBStart、承载寻呼信息的PDSCH的起始OFDM符号lPagingStart、承载随机接入响应的PDSCH的起始OFDM符号lMsg2Start、承载用户数据的PDSCH的起始OFDM符号lDataStart以及公共或专用M-PDCCH(EPDCCH)的起始OFDM符号lMPDCCHStart。
例如，在LTE系统中，MIB共有24个信息比特。目前已用14个比特，还有10个空闲比特。基站利用MIB的空闲比特来配置lSIBStart、lPagingStart、lMsg2Start、lDataStart和lMPDCCHStart。lSIBStart、lPagingStart、lMsg2Start、lDataStart和lMPDCCHStart归属于{1，2，3，4}，可以将它们配置成相同的值或部分相同和部分不同的值或各自不同的值。即，利用MIB中不同的空闲比特的组合来指示不同的起始OFDM符号。
实施例3
如图4所示，在此实施例中，基站采用预先设置和MIB来配置承载系统广播信息的PDSCH的起始OFDM符号lSIBStart、承载寻呼信息的PDSCH的起始OFDM符号lPagingStart、承载随机接入响应的PDSCH的起始OFDM符号lMsg2Start、承载用户数据的PDSCH的起始OFDM符号lDataStart和/或公共或专用M-PDCCH(EPDCCH)的起始OFDM符号lMPDCCHStart。
具体地，预先设置承载SIB的PDSCH的起始OFDM符号，而物理广播信道发射处理单元130通过MIB配置承载寻呼信息的PDSCH的起始OFDM符号lPagingStart、承载随机接入响应的PDSCH的起始OFDM符号lMsg2Start、承载用户数据的PDSCH的起始OFDM符号lDataStart和/或公共或专 用M-PDCCH(EPDCCH)的起始OFDM符号lMPDCCHStart。
优选地，预先设置承载SIB的PDSCH的起始OFDM符号和承载寻呼信息的PDSCH的起始OFDM符号lPagingStart，由物理广播信道发射处理单元130通过MIB配置承载随机接入响应的PDSCH的起始OFDM符号lMsg2Start、承载用户数据的PDSCH的起始OFDM符号lDataStart和/或公共或专用M-PDCCH(EPDCCH)的起始OFDM符号lMPDCCHStart。
在此实施例中，lSIBStart、lPagingStart、lMsg2Start、lDataStart和lMPDCCHStart归属于{1，2，3，4}，可以将它们配置成相同的值或部分相同和部分不同的值或各自不同的值。
实施例4
如图5所示，在此实施例中，采用预先设置或MIB和SIBx来配置承载系统广播信息的PDSCH的起始OFDM符号lSIBStart、承载寻呼信息的PDSCH的起始OFDM符号lPagingStart、承载随机接入响应的PDSCH的起始OFDM符号lMsg2Start、承载用户数据的PDSCH的起始OFDM符号lDataStart和/或公共或专用M-PDCCH(EPDCCH)的起始OFDM符号lMPDCCHStart。
具体地，预先设置或由物理广播信道发射处理单元130通过MIB配置承载SIB1的PDSCH的起始OFDM符号，再由物理下行共享信道发射处理单元110通过SIB1配置承载其它SIB的PDSCH的起始OFDM符号
Figure PCTCN2015085176-appb-000010
承载寻呼信息的PDSCH的起始OFDM符号lPagingStart、承载随机接入响应的PDSCH的起始OFDM符号lMsg2Start、承载用户数据的PDSCH的起始OFDM符号lDataStart和/或公共或专用M-PDCCH(EPDCCH)的起始OFDM符号。lMPDCCHStart
优选地，预先设置或由物理广播信道发射处理单元130通过MIB配置承载SIB1的PDSCH的起始OFDM符号和承载SIB2的PDSCH的起始OFDM符号，再由物理下行共享信道发射处理单元110通过SIB2配置承载其它SIB的PDSCH的起始OFDM符号
Figure PCTCN2015085176-appb-000011
承载寻呼信息的PDSCH的起始OFDM符号lPagingStart、承载随机接入响应的PDSCH的OFDM起始符号lMsg2Start、承载用户数据的PDSCH的起始OFDM符号lDataStart以及公共或专用M-PDCCH(EPDCCH)的起始OFDM符号lMPDCCHStart。
优选地，预先设置或由物理广播信道发射处理单元130通过MIB配 置承载SIB的PDSCH的起始OFDM符号lSIBStart，再由物理下行共享信道发射处理单元110通过SIB1或SIB2配置承载寻呼信息的PDSCH的起始OFDM符号lPagingStart、承载随机接入响应的PDSCH的起始OFDM符号lMsg2Start、承载用户数据的PDSCH的起始OFDM符号lDataStart以及公共或专用M-PDCCH(EPDCCH)的起始OFDM符号lMPDCCHStart。
在此实施例中，
Figure PCTCN2015085176-appb-000012
lSIBStart、lPagingStart、lMsg2Start、lDataStart和lMPDCCHStart归属于{1，2，3，4}，可以将它们配置成同样的值或部分相同和部分不同的值或各自不同的值。
实施例5
如图6所示，在此实施例中，采用预先设置或MIB和RRC信令来配置承载系统广播信息的PDSCH的起始OFDM符号lSIBStart、承载寻呼信息的PDSCH的起始OFDM符号lPagingStart、承载随机接入响应的PDSCH的起始OFDM符号lMsg2Start、承载用户数据的PDSCH的起始OFDM符号lDataStart和/或公共或专用M-PDCCH(EPDCCH)的起始OFDM符号lMPDCCHStart。
具体地，预先设置或由物理广播信道发射处理单元130通过MIB配置承载SIB的PDSCH的起始OFDM符号lSIBStart、承载寻呼信息的PDSCH的起始OFDM符号lPagingStart、承载随机接入响应的PDSCH的起始OFDM符号lMsg2Start或公共M-PDCCH(EPDCCH)的起始OFDM符号lMPDCCHStart。窄带MTC UE采用lMsg2Start来接收承载除SIB、寻呼信息之外的其它信息和/或数据的PDSCH或/和与该PDSCH对应的M-PDCCH(EPDCCH)，直到UE通过专用RRC(Dedicated或UE-specific RRC)信令获得新的起始OFDM符号配置值为止。其后，UE采用专用RRC配置的M-PDCCH(EPDCCH)或/和PDSCH的起始OFDM符号来接收用户数据。
优选地，预先设置或由物理广播信道发射处理单元130通过MIB配置承载SIB的PDSCH的起始OFDM符号lSIBStart、承载寻呼信息的PDSCH的起始OFDM符号lPagingStart、承载随机接入响应的PDSCH的起始OFDM符号lMsg2Start或公共M-PDCCH(EPDCCH)的起始OFDM符号。窄带MTC UE采用默认的PDSCH的起始OFDM符号来接收承载除SIB、寻呼和RAR信息之外的其它信息和/或数据的PDSCH或/和与该PDSCH对应的M-PDCCH(EPDCCH)，直到UE通过专用RRC信令获得新的起始OFDM 符号配置值为止。其后，UE采用专用RRC配置的M-PDCCH(EPDCCH)或/和PDSCH的起始OFDM符号来接收用户数据。
在此实施例中，lSIBStart、lPagingStart、lMsg2Start、lDataStart和lMPDCCHStart归属于{1，2，3，4}，可以将它们配置成相同的值或部分相同和部分不同的值或各自不同的值。
实施例6
如图7所示，在此实施例中，采用预先设置或MIB和SIB和RRC信令来配置承载系统广播信息的PDSCH的起始OFDM符号lSIBstart、承载寻呼信息的PDSCH的起始OFDM符号lPagingStart、承载随机接入响应的PDSCH的起始OFDM符号lMsg2Start、承载用户数据的PDSCH的起始OFDM符号lDataStart以及公共或专用M-PDCCH(EPDCCH)的起始OFDM符号lMPDCCHStart。
具体地，预先设置或由物理广播信道发射处理单元130通过MIB配置承载SIB1的PDSCH的起始OFDM符号，再由物理下行共享信道发射处理单元110通过SIB1配置承载其它SIB的PDSCH的起始OFDM符号
Figure PCTCN2015085176-appb-000013
承载寻呼信息的PDSCH的起始OFDM符号lPagingStart、承载随机接入响应的PDSCH的起始OFDM符号lMsg2Start或公共M-PDCCH(EPDCCH)的起始OFDM符号。窄带MTC UE采用lMsg2Start来接收承载除SIB、寻呼信息之外的其它信息和/或数据的PDSCH或/和与该PDSCH对应的M-PDCCH(EPDCCH)，直到UE通过专用RRC(Dedicated或UE-specific RRC)信令获得新的起始OFDM符号配置值为止。其后，UE采用专用RRC配置的M-PDCCH(EPDCCH)或/和PDSCH的起始OFDM符号来接收用户数据。
优选地，预先设置或由物理广播信道发射处理单元130通过MIB配置承载SIB1的PDSCH的起始OFDM符号，再由物理下行共享信道发射处理单元110通过SIB1配置承载其它SIB的PDSCH的起始OFDM符号
Figure PCTCN2015085176-appb-000014
承载寻呼信息的PDSCH的起始OFDM符号lPagingStart、承载随机接入响应的PDSCH的起始OFDM符号lMsg2Start或公共M-PDCCH(EPDCCH)的起始OFDM符号。窄带MTC UE采用默认的PDSCH的起始OFDM符号来接收承载除SIB、寻呼和RAR信息之外的 其它信息和/或数据的PDSCH或/和与该PDSCH对应的M-PDCCH(EPDCCH)，直到UE通过专用RRC信令获得新的起始OFDM符号配置值为止。其后，UE采用专用RRC配置的M-PDCCH(EPDCCH)或/和PDSCH的起始OFDM符号来接收用户数据。
优选地，预先设置或由物理广播信道发射处理单元130通过MIB配置承载SIB1的PDSCH的起始OFDM符号和承载SIB2的PDSCH的起始OFDM符号，由物理下行共享信道发射处理单元110通过SIB2配置承载其它SIB的PDSCH的起始OFDM符号
Figure PCTCN2015085176-appb-000015
承载寻呼信息的PDSCH的起始OFDM符号lPagingStart、承载随机接入响应的PDSCH的起始OFDM符号lMsg2Start或公共M-PDCCH(EPDCCH)的起始OFDM符号。窄带MTC UE采用lMsg2Start来接收承载除SIB、寻呼信息之外的其它信息和/或数据的PDSCH或/和与该PDSCH对应的M-PDCCH(EPDCCH)，直到UE通过专用RRC(Dedicated或UE-specific RRC)信令获得新的起始OFDM符号配置值为止。其后，UE采用专用RRC配置的M-PDCCH(EPDCCH)或/和PDSCH的起始OFDM符号来接收用户数据。
优选地，预先设置或由物理广播信道发射处理单元130通过MIB配置承载SIB1的PDSCH的起始OFDM符号和承载SIB2的PDSCH的起始OFDM符号，由物理下行共享信道发射处理单元110通过SIB2配置承载其它SIB的PDSCH的起始OFDM符号
Figure PCTCN2015085176-appb-000016
承载寻呼信息的PDSCH的起始OFDM符号lPagingStart、承载随机接入响应的PDSCH的起始OFDM符号lMsg2Start或公共M-PDCCH(EPDCCH)的起始OFDM符号。窄带MTC UE采用默认的PDSCH的起始OFDM符号来接收承载除SIB、寻呼和RAR信息之外的其它信息和/或数据的PDSCH或/和与该PDSCH对应的M-PDCCH(EPDCCH)，直到UE通过专用RRC信令获得新的起始OFDM符号配置值为止。其后，UE采用专用RRC配置的M-PDCCH(EPDCCH)或/和PDSCH的起始OFDM符号来接收用户数据。
优选地，预先设置或由物理广播信道发射处理单元130通过MIB配置承载SIB的PDSCH的起始OFDM符号lSIBStart，由物理下行共享信道发射处理单元110通过SIB1或SIB2配置承载寻呼信息的PDSCH的起始OFDM符号lPagingStart、承载随机接入响应的PDSCH的起始OFDM符号lMsg2Start或公共M-PDCCH(EPDCCH)的起始OFDM符号。窄带MTC UE采 用lMsg2Start来接收承载除SIB、寻呼信息之外的其它信息和/或数据的PDSCH或/和与该PDSCH对应的M-PDCCH(EPDCCH)，直到UE通过专用RRC(Dedicated或UE-specific RRC)信令获得新的起始OFDM符号配置值为止。其后，UE采用专用RRC配置的M-PDCCH(EPDCCH)或/和PDSCH的起始OFDM符号来接收用户数据。
优选地，预先设置或由物理广播信道发射处理单元130通过MIB配置承载SIB的PDSCH的起始OFDM符号lSIBStart，由物理下行共享信道发射处理单元110通过SIB1或SIB2配置承载其它SIB的PDSCH的起始OFDM符号
Figure PCTCN2015085176-appb-000017
承载寻呼信息的PDSCH的起始OFDM符号lPagingStart、承载随机接入响应的PDSCH的起始OFDM符号lMsg2Start或公共M-PDCCH(EPDCCH)的起始OFDM符号。窄带MTC UE采用默认的PDSCH的起始OFDM符号来接收承载除SIB、寻呼和RAR信息之外的其它信息和/或数据的PDSCH或/和与该PDSCH对应的M-PDCCH(EPDCCH)，直到UE通过专用RRC信令获得新的起始OFDM符号配置值为止。其后，UE采用专用RRC配置的M-PDCCH(EPDCCH)或/和PDSCH的起始OFDM符号来接收用户数据。
在此实施例中，
Figure PCTCN2015085176-appb-000018
lSIBStart、lPagingStart、lMsg2Start、lDataStart和lMPDCCHStart归属于{1，2，3，4}，可以将它们配置成同样的值或部分相同和部分不同的值或各自不同的值。
对于某个发射时间间隔(Transmission Time Interval，TTI)的物理下行信道的传输，设置的CFI值(当
Figure PCTCN2015085176-appb-000019
时)或CFI+1值(当
Figure PCTCN2015085176-appb-000020
时)与基站为窄带MTC UE配置的PDSCH起始OFDM符号或/和公共或/和专用的M-PDCCH(EPDCCH)的起始OFDM符号之间的关系有如下要求以及相应的基站和窄带MTC UE的行为规范：
如果该TTI内有承载窄带MTC UE的系统广播信息的PDSCH传输，并且窄带MTC UE与常规的LTE用户共享同样的系统广播信息的传输，则基站设置的CFI值(当
Figure PCTCN2015085176-appb-000021
时)或CFI值+1(当
Figure PCTCN2015085176-appb-000022
时)应等于基站给窄带MTC UE配置的承载系统广播信息的PDSCH的起始OFDM符号。窄带MTC UE接收承载系统广播信息的PDSCH时，将该PDSCH的OFDM起始符号设置为lSIBStart。
如果该TTI内有承载窄带MTC UE的系统广播信息的PDSCH传输，但窄带MTC UE与常规的LTE用户不共享同样的系统广播信息的传输，即基站对窄带MTC UE单独传输系统广播信息，则基站设置的CFI值(当
Figure PCTCN2015085176-appb-000023
时)或CFI+1值(当
Figure PCTCN2015085176-appb-000024
时)可以与基站给窄带MTC UE配置的承载系统广播信息的PDSCH的起始OFDM符号lSIBStart不相等。如果CFI值(当
Figure PCTCN2015085176-appb-000025
时)或CFI+1值(当
Figure PCTCN2015085176-appb-000026
时)小于或等于lSIBStart，基站将从起始OFDM符号为lSIBStart的符号开始进行承载窄带MTC UE的系统广播信息的PDSCH的资源单元(Resource Element，RE)的映射。如果CFI值(当
Figure PCTCN2015085176-appb-000027
时)或CFI+1值(当
Figure PCTCN2015085176-appb-000028
时)大于lSIBStart，基站将从起始OFDM符号为lSIBStart的符号开始进行承载窄带MTC UE的系统广播信息的PDSCH的资源单元的映射。但是，基站将对承载窄带MTC UE的系统广播信息的PDSCH与宽带PDCCH重叠的资源单元进行打孔处理。窄带MTC UE接收承载系统广播信息的PDSCH时，将该PDSCH的起始OFDM符号设置为lSIBStart。
该TTI内有承载窄带MTC UE的寻呼信息的PDSCH传输或承载窄带MTC UE的随机接入响应的PDSCH传输或承载窄带MTC UE数据的PDSCH传输，基站设置的CFI值(当
Figure PCTCN2015085176-appb-000029
时)或CFI+1值(当
Figure PCTCN2015085176-appb-000030
时)可以与基站给窄带MTC UE配置的承载系统广播信息的PDSCH的起始OFDM符号lSIBStart不相等。如果CFI值(当
Figure PCTCN2015085176-appb-000031
时)或CFI+1值(当
Figure PCTCN2015085176-appb-000032
时)小于或等于lPagingStart或lMsg2Start或lDataStart，基站将从起始OFDM符号为lPagingStart或lMsg2Start或lDataStart的符号开始进行承载窄带MTC UE的寻呼信息的PDSCH或承载窄带MTC UE的随机接入响应的PDSCH或承载窄带MTC UE数据的PDSCH的资源单元的映射。如果CFI值(当
Figure PCTCN2015085176-appb-000033
时)或CFI+1值(当
Figure PCTCN2015085176-appb-000034
时)大于lSIBStart，基站将从起始OFDM符号为lPagingStart或lMsg2Start或lDataStart的符号开始进行承载窄带MTC UE的寻呼信息的PDSCH或承载窄带MTC UE的随机接入响应的PDSCH或承载窄带MTC UE数据的PDSCH的资源单元的映射。但是，基站将对承载窄带MTC UE的寻呼信息的PDSCH或承载窄带MTC UE的随机接入响应的PDSCH或承载窄带MTC UE数据的PDSCH与宽带PDCCH重叠的资源单元进行打孔处理。窄带MTC UE接收承载窄带MTC UE的寻呼信息的PDSCH或承载窄带MTC UE的随机接入响应的PDSCH或承载窄带MTC UE数 据的PDSCH时，将该PDSCH的起始OFDM符号相应地设置为lPagingStart或lMsg2Start或lDataStart。
如果该TTI内有公共M-PDCCH(EPDCCH)或新设计的公共物理下行控制信道或其它物理下行控制信道或专用M-PDCCH(EPDCCH)的传输，基站设置的CFI值(当
Figure PCTCN2015085176-appb-000035
时)或CFI+1值(当
Figure PCTCN2015085176-appb-000036
时)可以与上述公共M-PDCCH(EPDCCH)或新设计的公共物理下行控制信道或其它物理下行控制信道的起始OFDM符号或专用M-PDCCH(EPDCCH)的起始OFDM符号不相等。如果CFI值(当时)或CFI+1值(当
Figure PCTCN2015085176-appb-000038
时)小于或等于上述公共M-PDCCH(EPDCCH)或新设计的公共物理下行控制信道或其它物理下行控制信道的起始OFDM符号或专用M-PDCCH(EPDCCH)的起始OFDM符号，基站将从上述公共M-PDCCH(EPDCCH)或新设计的公共物理下行控制信道或其它物理下行控制信道的起始OFDM符号或专用M-PDCCH(EPDCCH)的起始OFDM符号开始进行上述公共M-PDCCH(EPDCCH)或新设计的公共物理下行控制信道或其它物理下行控制信道或专用M-PDCCH(EPDCCH)的资源单元的映射。如果CFI值(当
Figure PCTCN2015085176-appb-000039
时)或CFI+1值(当
Figure PCTCN2015085176-appb-000040
时)大于上述公共M-PDCCH(EPDCCH)或新设计的公共物理下行控制信道或其它物理下行控制信道的起始OFDM符号或专用M-PDCCH(EPDCCH)的起始OFDM符号，基站将从上述公共M-PDCCH(EPDCCH)或新设计的公共物理下行控制信道或其它物理下行控制信道的起始OFDM符号或专用M-PDCCH(EPDCCH)的起始OFDM符号开始进行上述公共M-PDCCH(EPDCCH)或新设计的公共物理下行控制信道或其它物理下行控制信道或专用M-PDCCH(EPDCCH)的资源单元的映射。但是，基站将对上述公共M-PDCCH(EPDCCH)或新设计的公共物理下行控制信道或其它物理下行控制信道或专用M-PDCCH(EPDCCH)与宽带PDCCH重叠的资源单元进行打孔处理。窄带MTC UE接收上述公共M-PDCCH(EPDCCH)或新设计的公共物理下行控制信道或其它物理下行控制信道或专用M-PDCCH(EPDCCH)时，将上述公共M-PDCCH(EPDCCH)或新设计的公共物理下行控制信道或其它物理下行控制信道的起始OFDM符号或专用M-PDCCH(EPDCCH)的起始OFDM符号相应地设置为上述实施方式中为其配置的起始OFDM 符号。
图8示出了根据本发明由基站配置起始OFDM符号的方法的流程图。如图8所示，方法800在步骤S810处开始。
在S820，基站对要发射的信息进行处理。具体地，基站对要发射的系统广播信息“SIB”、寻呼信息、随机接入响应和用户数据进行处理，对要发射的下行控制信息进行处理，以及对要发射的主信息块“MIB”进行处理。
在S830，基站配置物理下行链路的起始OFDM符号。具体地，针对窄带机器类型通信用户设备，配置承载系统广播信息的PDSCH的起始正交频分复用“OFDM”符号“lSIBStart”、承载寻呼信息的PDSCH的起始OFDM符号“lPagingStart”、承载随机接入响应的PDSCH的起始OFDM符号“lMsg2Start”、承载用户数据的PDSCH的起始OFDM符号“lDataStart”和/或公共或专用M-PDCCH(EPDCCH)的起始OFDM符号“lEPDCCHStart”。
最后，方法800在步骤S840处结束。
图9示出了根据本发明由用户设备获取起始OFDM符号的方法的流程图。如图9所示，方法900在步骤S910处开始。
在S920，用户设备对要发射的信息进行处理。具体地，用户设备对接收的系统广播信息“SIB”、寻呼信息、随机接入响应和用户数据进行处理，对接收的下行控制信息进行处理，以及对接收的主信息块“MIB”进行处理。
在S930，用户设备获得物理下行链路的起始OFDM符号。具体地，用户设备获得承载系统广播信息的PDSCH的起始正交频分复用“OFDM”符号“lSIBStart”、承载寻呼信息的PDSCH的起始OFDM符号“lPagingStart”、承载随机接入响应的PDSCH的起始OFDM符号“lMsg2Start”、承载用户数据的PDSCH的起始OFDM符号“lDataStart”和/或公共或专用M-PDCCH(EPDCCH)的起始OFDM符号“lMPDCCHStart”。
最后，方法900在步骤S940处结束。
应该理解，本发明的上述实施例可以通过软件、硬件或者软件和硬 件两者的结合来实现。例如，上述实施例中的设备内部的各种组件可以通过多种器件来实现，这些器件包括但不限于：模拟电路器件、数字电路器件、数字信号处理(DSP)电路、可编程处理器、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、可编程逻辑器件(CPLD)，等等。
此外，这里所公开的本发明的实施例可以在计算机程序产品上实现。更具体地，该计算机程序产品是如下的一种产品：具有计算机可读介质，计算机可读介质上编码有计算机程序逻辑，当在计算设备上执行时，该计算机程序逻辑提供相关的操作以实现本发明的上述技术方案。当在计算系统的至少一个处理器上执行时，计算机程序逻辑使得处理器执行本发明实施例所述的操作(方法)。本发明的这种设置典型地提供为设置或编码在例如光介质(例如CD-ROM)、软盘或硬盘等的计算机可读介质上的软件、代码和/或其他数据结构、或者诸如一个或多个ROM或RAM或PROM芯片上的固件或微代码的其他介质、或一个或多个模块中的可下载的软件图像、共享数据库等。软件或固件或这种配置可安装在计算设备上，以使得计算设备中的一个或多个处理器执行本发明实施例所描述的技术方案。
尽管以上已经结合本发明的优选实施例示出了本发明，但是本领域的技术人员将会理解，在不脱离本发明的精神和范围的情况下，可以对本发明进行各种修改、替换和改变。因此，本发明不应由上述实施例来限定，而应由所附权利要求及其等价物来限定。

Claims (40)

  1. 一种基站，包括：
    发射单元，用于发射MTC的物理下行控制信道M-PDCCH和物理下行共享信道PDSCH；其中，
    预先设置承载第一系统广播信息“SIB1”的PDSCH的起始OFDM符号；以及
    通过SIB1配置M-PDCCH和其它的PDSCH的起始OFDM符号。
  2. 根据权利要求1所述的基站，其中，
    承载系统广播信息的PDSCH的起始正交频分复用“OFDM”符号为“1SIBStart”；
    承载寻呼信息的PDSCH的起始OFDM符号为“1PagingStart”；
    承载随机接入响应的PDSCH的起始OFDM符号为“1Msg2Start”；
    承载用户数据的PDSCH的起始OFDM符号为“1DataStart”；
    M-PDCCH的起始OFDM符号为“1MPDCCHStart”。
  3. 根据权利要求1所述的基站，其中，
    预先设置1SIBStart、1PagingStart、1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  4. 根据权利要求1所述的基站，其中，
    通过MIB来配置1SIBStart、1PagingStart、1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  5. 根据权利要求1所述的基站，其中，
    预先设置PDSCH的1SIBStart；以及
    通过MIB来配置1PagingStart、1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  6. 根据权利要求1所述的基站，其中，
    预先设置PDSCH的1SIBStart和1PagingStart；以及
    通过MIB来配置1Msg2Start和/或1DataStart和/或1MPDCCHSyart。
  7. 根据权利要求1所述的基站，其中，
    预先设置承载第一系统广播信息“SIB1”的PDSCH的起始OFDM符号和承载第二系统广播信息“SIB2”的PDSCH的起始OFDM符号，或者通过MIB来配置承载SIB1的PDSCH的起始OFDM符号和承载SIB2的PDSCH的起始OFDM符号；以及
    通过SIB2配置承载其它SIB的PDSCH的起始OFDM符号1SIBStart、 1PagingStart、1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  8. 根据权利要求1所述的基站，其中，
    预先设置PDSCH的1SIBStart，或者PBCH发射处理单元通过MIB来配置PDSCH的1SIBStart；以及
    通过第一系统广播信息“SIB1”或第二系统广播信息“SIB2”配置1PagingStart、1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  9. 根据权利要求1所述的基站，其中，
    采用1Msg2Start或默认的起始OFDM符号来发射承载除SIB、寻呼和Msg2信息之外的其它信息和/或数据的PDSCH或/和调度该PDSCH的EPDCCH，直到通过专用RRC信令为用户成功配置新的起始OFDM符号为止。
  10. 根据权利要求1-9中任意一项所述的基站，其中，1SIBStart、1PagingStart、1Msg2Start、1DataStart以及1MPDCCHStart的取值彼此相同、部分相同或各自不同。
  11. 一种用户设备，包括：
    接收单元，被配置为接收MTC的物理下行控制信道M-PDCCH和物理下行共享信道PDSCH；其中，
    预先设置承载第一系统广播信息“SIB1”的PDSCH的起始OFDM符号；以及
    通过SIB1获得M-PDCCH和其它的PDSCH的起始OFDM符号。
  12. 根据权利要求11所述的用户设备，其中，
    承载系统广播信息的PDSCH的起始正交频分复用“OFDM”符号为“1SIBStart”；
    承载寻呼信息的PDSCH的起始OFDM符号为“1PagingStart”；
    承载随机接入响应的PDSCH的起始OFDM符号为“1Msg2Start”；
    承载用户数据的PDSCH的起始OFDM符号为“1DataStart”；
    M-PDCCH的起始OFDM符号为“1MPDCCHStart”。
  13. 根据权利要求11所述的用户设备，其中，
    通过预先设置的方式来获得1SIBStart、1PagingStart、1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  14. 根据权利要求11所述的用户设备，其中，
    通过MIB来获得1SIBStart、1PagingStart、1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  15. 根据权利要求11所述的用户设备，其中，
    通过预先设置的方式来获得PDSCH的1SIBStart；以及
    通过MIB来获得1PagingStart、1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  16. 根据权利要求11所述的用户设备，其中，
    通过预先设置的方式来获得PDSCH的1SIBStart和1PagingStart；以及
    通过MIB来获得1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  17. 根据权利要求11所述的用户设备，其中，
    通过预先设置的方式来获得承载第一系统广播信息“SIB1”的PDSCH的起始OFDM符号和承载第二系统广播信息“SIB2”的PDSCH的起始OFDM符号，或者通过MIB来获得承载SIB1的PDSCH的起始OFDM符号和承载SIB2的PDSCH的起始OFDM符号；以及
    通过SIB2获得承载其它SIB的PDSCH的起始OFDM符号1SIBStart、1PagingStart、1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  18. 根据权利要求11所述的用户设备，其中，
    通过预先设置的方式来获得PDSCH的1SIBStart，或者PBCH接收处理单元通过MIB来获得1SIBStart；以及
    通过第一系统广播信息“SIB1”或第二系统广播信息“SIB2”获得1PagingStart、1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  19. 根据权利要求11所述的用户设备，其中，
    采用1Msg2Start或默认的起始OFDM符号来接收承载除SIB、寻呼和Msg2信息之外的其它信息和/或数据的PDSCH或/和调度该PDSCH的EPDCCH，直到通过专用RRC信令成功获得新的起始OFDM符号为止。
  20. 根据权利要求11-19中任意一项所述的用户设备，其中，1SIBStart、1PagingStart、1Msg2Start、1DataStart以及1MPDCCHStart的取值彼此相同、部分相同或各自不同。
  21. 一种由基站执行的方法，包括：
    预先设置承载第一系统广播信息“SIB1”的PDSCH的起始OFDM符号；以及
    通过SIB1配置M-PDCCH和其它的PDSCH的起始OFDM符号。
  22. 根据权利要求21所述的方法，其中，
    承载系统广播信息的PDSCH的起始正交频分复用“OFDM”符号为“1SIBStart”；
    承载寻呼信息的PDSCH的起始OFDM符号为“1PagingStart”；
    承载随机接入响应的PDSCH的起始OFDM符号为“1Msg2Start”；
    承载用户数据的PDSCH的起始OFDM符号为“1DataStart”；
    M-PDCCH的起始OFDM符号为“1MPDCCHStart”。
  23. 根据权利要求21所述的方法，其中，预先设置1SIBStart、1PagingStart、1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  24. 根据权利要求21所述的方法，其中，通过MIB来配置1SIBStart、1PagingStart、1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  25. 根据权利要求21所述的方法，其中，预先设置PDSCH的1SIBStart，以及通过MIB来配置1PagingStart、1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  26. 根据权利要求21所述的方法，其中，预先设置PDSCH的1SIBStart和1PagingStart，以及通过MIB来配置1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  27. 根据权利要求21所述的方法，其中，预先设置承载第一系统广播信息“SIB1”的PDSCH的起始OFDM符号和承载第二系统广播信息“SIB2”的PDSCH的起始OFDM符号，或者通过MIB来配置承载SIB1的PDSCH的起始OFDM符号和承载SIB2的PDSCH的起始OFDM符号；以及通过SIB2配置承载其它SIB的PDSCH的起始OFDM符号1SIBStart、1PagingStart、1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  28. 根据权利要求21所述的方法，其中，预先设置PDSCH的1SIBStart，或者通过MIB来配置PDSCH的1SIBStart；以及通过第一系统广播信息“SIB1”或第二系统广播信息“SIB2”配置1PagingStart、1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  29. 根据权利要求21所述的方法，其中，采用1Msg2Start或默认的起始OFDM符号来发射承载除SIB、寻呼和Msg2信息之外的其它信息和/或数据的PDSCH或/和调度该PDSCH的EPDCCH，直到通过专用RRC信令为用户成功配置新的起始OFDM符号为止。
  30. 根据权利要求21-29中任意一项所述的方法，其中，1SIBStart、1PagingStart、1Msg2Start、1DataStart以及1MPDCCHStart的取值彼此相同、部分相同或各自不同。
  31. 一种由用户设备执行的方法，包括：
    预先设置承载第一系统广播信息“SIB1”的PDSCH的起始OFDM符号；以及
    通过SIB1获得M-PDCCH和其它的PDSCH的起始OFDM符号。
  32. 根据权利要求31所述的方法，其中，
    承载系统广播信息的PDSCH的起始正交频分复用“OFDM”符号为“1SIBStart”；
    承载寻呼信息的PDSCH的起始OFDM符号为“1PagingStart”；
    承载随机接入响应的PDSCH的起始OFDM符号为“1Msg2Start”；
    承载用户数据的PDSCH的起始OFDM符号为“1DataStart”；
    M-PDCCH的起始OFDM符号为“1MPDCCHStart”。
  33. 根据权利要求31所述的方法，其中，通过预先设置的方式来获得PDSCH的1SIBStart、1PagingStart、1Msg2Start和1DataStart和/或EPDCCH的1MPDCCHStart。
  34. 根据权利要求31所述的方法，其中，通过MIB来获得1SIBStart、1PagingStart、1Msg2Start、1DataStart和/或1MPDCCHStart。
  35. 根据权利要求31所述的方法，其中，通过预先设置的方式来获得PDSCH的1SIBStart；以及通过MIB来获得1PagingStart、1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  36. 根据权利要求31所述的方法，其中，通过预先设置的方式来获得PDSCH的1SIBStart和1PagingStart；以及通过MIB来获得1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  37. 根据权利要求31所述的方法，其中，通过预先设置的方式来获得承载第一系统广播信息“SIB1”的PDSCH的起始OFDM符号和承载第二系统广播信息“SIB2”的PDSCH的起始OFDM符号，或者通过MIB来获得承载SIB1的PDSCH的起始OFDM符号和承载SIB2的PDSCH的起始OFDM符号；以及通过SIB2获得承载其它SIB的PDSCH的起始OFDM符号1SIBStart、1PagingStart、1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  38. 根据权利要求31所述的方法，其中，通过预先设置的方式来获得PDSCH的1SIBStart，或者通过MIB来获得1SIBStart；以及通过第一系统广播 信息“SIB1”或第二系统广播信息“SIB2”获得1PagingStart、1Msg2Start和/或1DataStart和/或1MPDCCHStart。
  39. 根据权利要求31所述的方法，其中，采用1Msg2Start或默认的起始OFDM符号来接收承载除SIB、寻呼和Msg2信息之外的其它信息和/或数据的PDSCH或/和调度该PDSCH的EPDCCH，直到通过专用RRC信令成功获得新的起始OFDM符号为止。
  40. 根据权利要求31-39中任意一项所述的方法，其中，
    Figure PCTCN2015085176-appb-100001
    1SIBStart、1PagingStart、1Msg2Start、1DataStart以及1MPDCCHStart的取值彼此相同、部分相同或各自不同。
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