【文章內(nèi)容簡(jiǎn)介】 ownlink control channel assignment ................................................. 64 PDCCH Assignment Procedure ....................................................................................................................... 64 PHICH Assignment Procedure ........................................................................................................................ 65 PDCCH validation for semipersistent scheduling ......................................................................................... 66 10 Physical uplink control channel procedures ................................................................................... 67 UE procedure for determining physical uplink control channel assignment ...................................................... 67 Uplink ACK/NACK timing ................................................................................................................................... 72 Annex A (informative): Change history ....................................................................................... 74 3GPP 3GPP TS (202003) 5 Release 8 Foreword This Technical Specification (TS) has been produced by the 3rd Generation Partnership Project (3GPP). The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of this present document, it will be rereleased by the TSG with an identifying change of release date and an increase in version number as follows: Version where: x the first digit: 1 presented to TSG for information。 2 presented to TSG for approval。 3 or greater indicates TSG approved document under change control. y the second digit is incremented for all changes of substance, . technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. 3GPP 3GPP TS (202003) 6 Release 8 1 Scope The present document specifies and establishes the characteristics of the physicals layer procedures in the FDD and TDD modes of EUTRA. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. ? References are either specific (identified by date of publication, edition number, version number, etc.) or nonspecific. ? For a specific reference, subsequent revisions do not apply. ? For a nonspecific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a nonspecific reference implicitly refers to the latest version of that document in the same Release as the present document. [1] 3GPP TR : “Vocabulary for 3GPP Specifications” [2] 3GPP TS : “Evolved Universal Terrestrial Radio Access (EUTRA)。 Physical Layer – General Description” [3] 3GPP TS : “Evolved Universal Terrestrial Radio Access (EUTRA)。 Physical channels and modulation” [4] 3GPP TS : “Evolved Universal Terrestrial Radio Access (EUTRA)。 Multiplexing and channel coding” [5] 3GPP TS : “Evolved Universal Terrestrial Radio Access (EUTRA)。 Physical layer – Measurements” [6] 3GPP TS : “Evolved Universal Terrestrial Radio Access (EUTRA)。 User Equipment (UE) radio transmission and reception” [7] 3GPP TS : “Evolved Universal Terrestrial Radio Access (EUTRA)。 Base Station (BS) radio transmission and reception” [8] 3GPP , “Evolved Universal Terrestrial Radio Access (EUTRA)。 Medium Access Control (MAC) protocol specification” [9] 3GPP , “Evolved Universal Terrestrial Radio Access (EUTRA)。 X2 Application Protocol (X2AP)” [10] 3GPP , “Evolved Universal Terrestrial Radio Access (EUTRA)。 Requirements for support of radio resource management” [11] 3GPP , “Evolved Universal Terrestrial Radio Access (EUTRA)。 Radio Resource Control (RRC) protocol specification” 3GPP 3GPP TS (202003) 7 Release 8 3 Definitions, symbols, and abbreviations Symbols For the purposes of the present document, the following symbols apply: DLRBN Downlink bandwidth configuration, expressed in units of RBscN as defined in [3] ULRBN Uplink bandwidth configuration, expressed in units of RBscN as defined in [3] ULsymbN Number of SCFDMA symbols in an uplink slot as defined in [3] RBscN Resource block size in the frequency domain, expressed as a number of subcarriers as defined in [3] sT Basic time unit as defined in [3] Abbreviations For the purposes of the present document, the following abbreviations apply. ACK Acknowledgement BCH Broadcast Channel CCE Control Channel Element CQI Channel Quality Indicator CRC Cyclic Redundancy Check DAI Downlink Assignment Index DL Downlink DTX Discontinuous Transmission EPRE Energy Per Resource Element MCS Modulation and Coding Scheme NACK Negative Acknowledgement PBCH Physical Broadcast Channel PCFICH Physical Control Format Indicator Channel PDCCH Physical Downlink Control Channel PDSCH Physical Downlink Shared Channel PHICH Physical Hybrid ARQ Indicator Channel PRACH Physical Random Access Channel PRB Physical Resource Block PUCCH Physical Uplink Control Channel PUSCH Physical Uplink Shared Channel QoS Quality of Service RBG Resource Block Group RE Resource Element RPF Repetition Factor RS Reference Signal SIR SignaltoInterference Ratio SINR Signal to Interference plus Noise Ratio SPS CRNTI SemiPersistent Scheduling CRNTI SRS Sounding Reference Symbol TA Time alignment TTI Transmission Time Interval UE User Equipment UL Uplink ULSCH Uplink Shared Channel VRB Virtual Resource Block 3GPP 3GPP TS (202003) 8 Release 8 4 同步過(guò)程 小區(qū)搜索 小區(qū)搜索是指 UE在小區(qū)中獲取時(shí)間和頻率同步并檢測(cè)小區(qū)物理層 Cell ID的過(guò)程。 EUTRA小區(qū)搜索支持包含 6個(gè)以上資源塊的傳輸帶寬范圍內(nèi)的搜索。 通過(guò)主同步信號(hào)和輔同步信號(hào)的發(fā)送實(shí)現(xiàn)下行鏈路的小區(qū)搜索。 時(shí)間同步 無(wú)線(xiàn)鏈路監(jiān)測(cè) UE應(yīng)該監(jiān)測(cè)服務(wù)小區(qū)無(wú)線(xiàn)鏈路的質(zhì)量，因?yàn)?