WO2017015910A1 - 上行数据发送装置、接收装置及方法 - Google Patents

上行数据发送装置、接收装置及方法 Download PDF

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Publication number
WO2017015910A1
WO2017015910A1 PCT/CN2015/085470 CN2015085470W WO2017015910A1 WO 2017015910 A1 WO2017015910 A1 WO 2017015910A1 CN 2015085470 W CN2015085470 W CN 2015085470W WO 2017015910 A1 WO2017015910 A1 WO 2017015910A1
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WO
WIPO (PCT)
Prior art keywords
symbol
uplink
contention resource
uplink data
data
Prior art date
Application number
PCT/CN2015/085470
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English (en)
French (fr)
Inventor
唐珣
权威
张戬
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to JP2018504229A priority Critical patent/JP2018524951A/ja
Priority to PCT/CN2015/085470 priority patent/WO2017015910A1/zh
Priority to CN201580045059.5A priority patent/CN106576355B/zh
Priority to EP15899262.8A priority patent/EP3316644B1/en
Priority to AU2015403755A priority patent/AU2015403755B2/en
Publication of WO2017015910A1 publication Critical patent/WO2017015910A1/zh
Priority to US15/882,629 priority patent/US10499420B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • H04L27/261Details of reference signals
    • H04L27/2613Structure of the reference signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/002Transmission of channel access control information
    • H04W74/006Transmission of channel access control information in the downlink, i.e. towards the terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/02Hybrid access techniques
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/08Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • 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
    • H04W72/0446Resources in time domain, e.g. slots or frames

Definitions

  • the present invention relates to the field of communications, and in particular, to an uplink data transmitting apparatus, a receiving apparatus, and a method.
  • the user equipment (English: User Equipment, UE for short) is usually sent to the evolved base station (English: Evolved Node B, eNB for short) based on the scheduled transmission mode. Upstream data.
  • the UE When the UE needs to send the uplink data, the UE first needs to send an uplink scheduling request to the eNB (English: Scheduling Request, SR for short); the eNB configures an uplink scheduling grant to the UE according to the SR (English: Up Link Grant, referred to as UL Grant)
  • the UL Grant is used to configure an uplink transmission resource to the UE.
  • the UE correctly decodes and obtains the UL Grant the UE sends uplink data to the eNB according to the uplink transmission resource configured by the eNB.
  • the entire process takes about 22.5ms.
  • a contention-based (Contention Based, CB) transmission method is proposed.
  • the eNB configures the same uplink contention resources to multiple user equipments in advance.
  • the UE needs to transmit uplink data
  • the UE sends the uplink data to the eNB by using the latest uplink contention resource.
  • a contention conflict may occur.
  • an embodiment of the present invention provides an uplink data sending apparatus, a receiving apparatus, and a method.
  • an embodiment of the present invention provides an uplink data sending apparatus, where the apparatus includes:
  • a determining module configured to determine an uplink contention resource, where the uplink contention resource includes an SR symbol used for transmitting an uplink scheduling request SR and a shared symbol used for transmitting uplink data;
  • a sending module configured to send the SR by using the SR symbol in the uplink contention resource
  • the sending module is configured to send the uplink data by using the shared symbol in the uplink contention resource.
  • the sending module is configured to send the SR by using a code channel corresponding to the local UE on the SR symbol in the uplink contention resource.
  • the determining module is configured to determine a code channel index that is allocated by the eNB;
  • the determining module is configured to search, according to the pre-stored first correspondence, a first cyclic shift value and a first time domain orthogonal code corresponding to the code channel index;
  • the determining module configured to process the predetermined base sequence by the first cyclic shift value and the first time domain orthogonal code to generate the SR;
  • the determining module is configured to send, by using the SR, the SR symbol in the uplink contention resource.
  • the sending module is configured to send the uplink in a multi-user multiple input multiple MU-MIMO manner on the shared symbol in the uplink contention resource. data.
  • the shared symbol comprises: a reference symbol for transmitting a demodulation reference signal DM-RS and for transmitting Data symbols of the uplink data;
  • the determining module is configured to determine a code channel index allocated by the eNB
  • the determining module is configured to search, according to the pre-stored second correspondence, a pilot index corresponding to the code channel index, and a second cyclic shift value and a second time domain positive corresponding to the pilot index Transmitting; for processing a predetermined base sequence by the second cyclic shift value and the second time domain orthogonal code to generate the DM-RS;
  • the sending module is configured to send the DM-RS to the reference symbol in the uplink contention resource for sending;
  • the sending module is configured to send the uplink data to the data symbol in the uplink contention resource for transmission.
  • the uplink data includes: a modulation and coding policy MCS and data that is currently transmitted;
  • the sending module is configured to carry the MCS and the data currently transmitted in the uplink contention resource for multiplexing transmission;
  • the channel coding code rate used by the MCS is lower than the channel coding rate used by the data currently transmitted.
  • the device further includes a receiving module
  • the determining module is configured to acquire the UE identifier allocated by the eNB, where the UE identifier includes a contention access cell radio network temporary identifier CA-RNTI or a semi-persistent scheduling contention cell radio network temporary identifier SPS-CA-RNTI;
  • the receiving module is configured to receive downlink control information DCI from the physical downlink control channel PDCCH according to the UE identifier;
  • the determining module is configured to determine, from the DCI, an uplink contention resource configured by the eNB;
  • the DCI adopts a DCI format format0 including an extended field, where the original field of the DCI format0 includes: a starting position and a quantity of the resource block occupied by the uplink contention resource, where the uplink contention resource is The symbol information corresponding to the shared symbol; the extension field includes symbol information for indicating the SR symbol; or the DCI uses the DCI format CA, where the DCI format CA includes: a starting position of the resource block occupied by the uplink contention resource And the number, the symbol information of the SR symbol and the symbol information corresponding to the shared symbol.
  • the device further includes:
  • a receiving module configured to receive non-acknowledgment NACK information fed back by the eNB, where the NACK information is sent when the eNB successfully receives the SR but fails to receive the uplink data corresponding to the SR;
  • the receiving module is configured to receive an uplink scheduling grant UL Grant that is sent by the eNB, where the UL Grant is sent when the eNB successfully receives the SR but fails to receive the uplink data corresponding to the SR.
  • the sending module is configured to resend the uplink data according to the UL Grant.
  • an uplink data receiving apparatus where the apparatus includes:
  • a configuration module configured to configure, for a plurality of user equipments, an uplink contention resource, where the uplink contention resource includes an SR symbol used for transmitting an uplink scheduling request SR and a shared symbol used for transmitting uplink data;
  • a receiving module configured to receive the SR by using the SR symbol in the uplink contention resource
  • the receiving module is configured to receive the uplink data by using the shared symbol in the uplink contention resource.
  • the receiving module is configured to receive the SR by using a code channel corresponding to each of the UEs on the SR symbol of the uplink contention resource.
  • the device further includes: a processing module
  • the configuration module is configured to allocate a corresponding code channel index to the UE
  • the processing module is configured to search, according to the pre-stored first correspondence, a first cyclic shift value and a first time domain orthogonal code corresponding to each of the code channel indexes;
  • the processing module is configured to detect, according to the first cyclic shift value and the first time domain orthogonal code, whether a signal energy on a code channel corresponding to the code channel index on the SR symbol reaches a predetermined threshold ;
  • the processing module is configured to determine, if the predetermined threshold is reached, the SR that is sent by the UE that is corresponding to the code channel index.
  • the receiving module is configured to receive, by using the multi-user multiple input multiple output MU-MIMO mode, on the shared symbol in the uplink contention resource.
  • the upstream data is described.
  • the shared symbol includes: a reference symbol for transmitting a demodulation reference signal DM-RS and is used for transmission The data symbol of the uplink data; the device further includes: a processing module;
  • the configuration module is configured to allocate a corresponding code channel index to the UE
  • the processing module is configured to determine, according to each of the SRs that are successfully received, the code track index corresponding to the SR;
  • the processing module is configured to search, according to the pre-stored second correspondence, a pilot index corresponding to the code channel index, and a second cyclic shift value and a second time domain positive corresponding to the pilot index Cross code
  • the processing module is configured to perform channel estimation on the demodulation reference signal DM-RS carried in the reference symbol of the uplink contention resource according to the second cyclic shift value and the second time domain orthogonal code. , obtaining channel estimation results;
  • the processing module data decoding unit is configured to perform multi-user multiple input and multiple MU-MIMO decoding on the data symbols in the uplink contention resource according to the channel estimation result to obtain the uplink data.
  • the uplink data includes: a modulation and coding policy MCS and data that is currently transmitted;
  • the processing module is configured to perform demodulation and channel decoding on the data currently transmitted according to the MCS.
  • the device further includes: a sending module;
  • the configuration module is configured to allocate a corresponding UE identifier to the UE
  • the sending module is configured to, for each UE, send downlink control information DCI on the physical downlink control channel PDCCH according to the UE identifier;
  • the DCI adopts a DCI format format0 including an extended field, where the original field of the DCI format0 includes: a starting position and a quantity of the resource block occupied by the uplink contention resource, where the uplink contention resource is The symbol information corresponding to the shared symbol; the extension field includes symbol information for indicating the SR symbol; or the DCI uses the DCI format CA, where the DCI format CA includes: a starting position of the resource block occupied by the uplink contention resource And the number, the symbol information of the SR symbol, and the symbol information corresponding to the shared symbol.
  • the device further includes:
  • a generating module configured to generate non-acknowledgment NACK information when the SR is successfully received but fails to receive the uplink data corresponding to the SR
  • a sending module configured to send to the UE corresponding to the SR The NACK information
  • the generating module is configured to: when the SR is successfully received but the uplink data corresponding to the SR is not successfully received, generate an uplink scheduling grant UL Grant for the UE corresponding to the SR; And a module, configured to send the UL Grant to the UE corresponding to the SR.
  • an embodiment of the present invention provides a user equipment, where the user equipment includes: a processor, a memory, and a transceiver, where the memory is used to store one or more instructions, and the instructions are configured to Executed by the processor;
  • the processor is configured to determine an uplink contention resource, where the uplink contention resource is used for transmission The SR symbol of the row scheduling request SR and the shared symbol for transmitting the uplink data;
  • the processor is further configured to control the transceiver to send the SR by using the SR symbol in the uplink contention resource;
  • the processor is further configured to control the transceiver to send the uplink data by using the shared symbol in the uplink contention resource.
  • the processor is further configured to, on the SR symbol in the uplink contention resource, control the transceiver to send by using a code channel corresponding to the local UE.
  • the SR is further configured to, on the SR symbol in the uplink contention resource, control the transceiver to send by using a code channel corresponding to the local UE.
  • the processor is further configured to determine a code channel index that is allocated by the eNB;
  • the processor is further configured to: find, according to the pre-stored first correspondence, a first cyclic shift value and a first time domain orthogonal code corresponding to the code channel index;
  • the processor is further configured to: process the predetermined base sequence by the first cyclic shift value and the first time domain orthogonal code to generate the SR;
  • the processor is further configured to control the transceiver to send the SR on the SR symbol in the uplink contention resource for transmission.
  • the processor is configured to control, by using the shared symbol in the uplink contention resource, the transceiver to send the uplink data in a multi-user multiple input multiple output MU-MIMO manner.
  • the shared symbol includes: a reference symbol for transmitting a demodulation reference signal DM-RS and is used for transmission Data symbols of the uplink data;
  • the processor is further configured to determine a code channel index allocated by the eNB;
  • the processor is further configured to: find, according to the pre-stored second correspondence, a pilot index corresponding to the code channel index, and a second cyclic shift value and a second time domain corresponding to the pilot index Orthogonal code
  • the processor is further configured to: process the predetermined base sequence by the second cyclic shift value and the second time domain orthogonal code to generate the DM-RS;
  • the processor is further configured to control, by the transceiver, that the DM-RS is carried on the reference symbol in the uplink contention resource, and the uplink data is carried in the uplink contention resource.
  • the data symbol is transmitted on.
  • the uplink data includes a modulation and coding policy MCS and data transmitted this time;
  • the processor is further configured to carry the MCS and the data currently transmitted in the uplink contention resource for multiplexing transmission;
  • the channel coding code rate used by the MCS is lower than the channel coding rate used by the data currently transmitted.
  • the processor is configured to:
  • the processor is further configured to acquire a UE identifier allocated by the eNB, where the UE identifier includes a contention access cell radio network temporary identifier CA-RNTI or a semi-persistent scheduling contention cell radio network temporary identifier SPS-CA-RNTI ;
  • the processor is further configured to control the transceiver to receive downlink control information DCI from a physical downlink control channel PDCCH according to the UE identifier;
  • the processor is further configured to determine, from the DCI, an uplink contention resource configured by the eNB;
  • the DCI adopts a DCI format format0 including an extended field, where the original field of the DCI format0 includes: a starting position and a quantity of the resource block occupied by the uplink contention resource, where the uplink contention resource is The symbol information corresponding to the shared symbol; the extension field includes symbol information for indicating the SR symbol; or the DCI uses the DCI format CA, where the DCI format CA includes: a starting position of the resource block occupied by the uplink contention resource And the number, the symbol information of the SR symbol and the symbol information corresponding to the shared symbol.
  • the processor is further configured to control the transceiver to receive the non-acknowledgment NACK information fed back by the eNB, where the NACK information is that the eNB successfully receives the SR but fails to receive the corresponding location of the SR. Sent when the uplink data is described;
  • the processor is further configured to control the transceiver to receive an uplink scheduling grant UL Grant fed back by the eNB, where the UL Grant is that the eNB successfully receives the SR but fails to receive the Transmitted when the uplink data corresponding to the SR is sent; and the transceiver is controlled to resend the uplink data according to the UL Grant.
  • an embodiment of the present invention provides an evolved base station, where the base station includes: a processor, a memory, and a transceiver, where the memory is configured to store one or more instructions, where the instructions are configured to be configured by Executing by the processor;
  • the processor is configured to configure an uplink contention resource for the multiple user equipments, where the uplink contention resource includes an SR symbol for transmitting an uplink scheduling request SR and a shared symbol for transmitting uplink data.
  • the processor is further configured to control the transceiver to receive the SR by using the SR symbol in the uplink contention resource;
  • the processor is further configured to control the transceiver to receive the uplink data by using the shared symbol in the uplink contention resource.
  • the processor is configured to:
  • the transceiver is controlled to receive the SR by using a code channel corresponding to each of the UEs.
  • the processor is further configured to allocate a corresponding code channel index to the UE;
  • the processor is further configured to: find, according to the pre-stored first correspondence, a first cyclic shift value and a first time domain orthogonal code corresponding to each of the code channel indexes;
  • the processor is further configured to detect, according to the first cyclic shift value and the first time domain orthogonal code, whether a signal energy on a code channel corresponding to the code channel index on the SR symbol reaches a predetermined time Threshold value
  • the processor is further configured to: if the predetermined threshold is reached, determine to receive the SR sent by the UE corresponding to the code channel index.
  • the processor is further configured to, on the shared symbol in the uplink contention resource, control the transceiver to receive the uplink data that is sent by using a multi-user multiple input multiple output MU-MIMO mode.
  • the shared symbol includes: a reference symbol for transmitting a demodulation reference signal DM-RS and is used for transmission Data symbols of the uplink data;
  • the processor is further configured to allocate a corresponding code channel index to the UE;
  • the processor is further configured to determine, according to each of the SRs that are successfully received, the code track index corresponding to the SR;
  • the processor is further configured to: find, according to the pre-stored second correspondence, a pilot index corresponding to the code channel index, and a second cyclic shift value and a second time domain corresponding to the pilot index Orthogonal code
  • the processor is further configured to perform, according to the second cyclic shift value and the second time domain orthogonal code, a channel of a demodulation reference signal DM-RS carried in the reference symbol of the uplink contention resource. Estimate, get the channel estimation result;
  • the processor is further configured to perform multi-user multiple input and multiple MU-MIMO decoding on the data symbols in the uplink contention resource according to the channel estimation result to obtain the uplink data.
  • the uplink data includes: a modulation and coding policy MCS and data that is currently transmitted;
  • the processor is further configured to perform demodulation and channel decoding on the data that is currently transmitted according to the MCS.
  • the processor is further configured to allocate a corresponding UE identifier to the UE;
  • the processor is further configured to, for each UE, control the transceiver to send downlink control information DCI on the physical downlink control channel PDCCH according to the UE identifier;
  • the DCI adopts a DCI format format0 including an extended field, where the original field of the DCI format0 includes: a starting position and a quantity of the resource block occupied by the uplink contention resource, where the uplink contention resource is The symbol information corresponding to the shared symbol; the extension field includes symbol information for indicating the SR symbol; or the DCI uses the DCI format CA, where the DCI format CA includes: a starting position of the resource block occupied by the uplink contention resource And the number, the symbol information of the SR symbol, and the symbol information corresponding to the shared symbol.
  • the processor is further configured to successfully receive the SR but fail to receive the SR pair successfully
  • the non-acknowledgment NACK information is generated when the uplink data is received; the processor is further configured to control the transceiver to send the NACK information to the UE corresponding to the SR;
  • the processor is further configured to: when the SR is successfully received but the uplink data corresponding to the SR is not successfully received, generate an uplink scheduling grant UL Grant for the UE corresponding to the SR; And for controlling the transceiver to send the UL Grant to the UE corresponding to the SR.
  • an embodiment of the present invention provides an uplink data sending and receiving system, where the uplink data sending and receiving system includes: an eNB and a UE;
  • the UE includes the uplink data transmitting apparatus provided by any one of the first aspect and the various possible implementation manners of the first aspect, or the UE is any one of various possible implementation manners of the third aspect and the third aspect Provided UE;
  • the eNB includes the uplink data receiving apparatus provided by any of the second aspect and any of the various possible implementation manners of the second aspect, or the eNB is any one of the fourth aspect and the fourth possible aspect of the fourth aspect Provided by the eNB.
  • an embodiment of the present invention provides an uplink data sending method, where the method includes:
  • the uplink contention resource includes an SR symbol for transmitting an uplink scheduling request SR and a shared symbol for transmitting uplink data
  • the sending, by using the SR symbol in the uplink contention resource, the SR includes:
  • the code corresponding to the UE is used on the SR symbol in the uplink contention resource Before sending the SR, the road also includes:
  • the sending the uplink data by using the shared symbol in the uplink contention resource includes:
  • the shared symbol includes: a reference symbol for transmitting a demodulation reference signal DM-RS and is used for transmission Data symbols of the uplink data;
  • the multi-user multiple input and multiple MU-MIMO manners are also included in the shared symbol in the uplink contention resource, and the method further includes:
  • Transmitting, by the multi-user multiple input and multiple MU-MIMO mode, the uplink data on the shared symbol in the uplink contention resource including:
  • the DM-RS is transmitted on the reference symbol in the uplink contention resource, and the uplink data is carried on the data symbol in the uplink contention resource for transmission.
  • the uplink data includes a modulation and coding policy MCS and data that is currently transmitted;
  • Transmitting, by the uplink data, the data symbol in the uplink contention resource including:
  • the channel coding code rate used by the MCS is lower than the channel coding rate used by the data currently transmitted.
  • the determining the uplink competition resource includes:
  • the UE identifier includes a contention access cell radio network temporary identifier CA-RNTI or a semi-persistent scheduling contention cell radio network temporary identifier SPS-CA-RNTI;
  • the DCI adopts a DCI format format0 including an extended field, where the original field of the DCI format0 includes: a starting position and a quantity of the resource block occupied by the uplink contention resource, where the uplink contention resource is The symbol information corresponding to the shared symbol; the extension field includes symbol information for indicating the SR symbol; or the DCI uses the DCI format CA, where the DCI format CA includes: a starting position of the resource block occupied by the uplink contention resource And the number, the symbol information of the SR symbol and the symbol information corresponding to the shared symbol.
  • the seventh possible implementation manner of the sixth aspect after the sending the uplink data by using the shared symbol in the uplink contention resource, ,Also includes:
  • an embodiment of the present invention provides an uplink data sending method, where the method includes:
  • the uplink contention resources include an SR symbol for transmitting an uplink scheduling request SR and a shared symbol for transmitting uplink data;
  • the receiving, by the SR symbol in the uplink contention resource, the SR includes:
  • the SR is received by a code channel corresponding to each of the UEs.
  • the that, on the SR symbol of the uplink contention resource, by corresponding to each of the UEs Before the code channel receives the SR also includes:
  • Receiving the SR by using a code channel corresponding to each of the UEs on the SR symbol of the uplink contention resource including:
  • the receiving the uplink data by using the shared symbol in the uplink contention resource includes:
  • the shared symbol includes: a reference symbol for transmitting a demodulation reference signal DM-RS and is used for transmission Data symbols of the uplink data;
  • the method before the receiving, by the MU-MIMO, the uplink data on the shared symbol in the uplink contention resource, the method further includes:
  • the MU-MIMO And receiving, by the MU-MIMO, the uplink data, on the shared symbol in the uplink contention resource, including:
  • the uplink data includes: a modulation and coding policy MCS and data that is currently transmitted;
  • the method further includes:
  • a seventh possible aspect of the seventh aspect or the seventh aspect, or a second possible implementation of the seventh aspect or a third possible implementation of the seventh aspect or the fourth possible aspect of the seventh aspect includes:
  • the DCI adopts a DCI format format0 including an extended field, where the original field of the DCI format0 includes: a starting position and a quantity of the resource block occupied by the uplink contention resource, where the uplink contention resource is The symbol information corresponding to the shared symbol; the extension field includes symbol information for indicating the SR symbol; or the DCI uses the DCI format CA, where the DCI format CA includes: a starting position of the resource block occupied by the uplink contention resource And the number, the symbol information of the SR symbol, and the symbol information corresponding to the shared symbol.
  • a seventh possible aspect of the seventh aspect or the seventh aspect, or a second possible implementation of the seventh aspect or a third possible implementation of the seventh aspect or the fourth possible aspect of the seventh aspect in an implementation manner or a fifth possible implementation manner, in the seventh possible implementation manner of the seventh aspect, after the receiving, by the shared symbol in the uplink contention resource, the uplink data, the method further includes:
  • the uplink contention resource includes an SR symbol for transmitting the SR and a shared symbol for transmitting the uplink data; the UE sends the SR to the eNB by using the SR symbol in the uplink contention resource; The shared symbol in the uplink contention resource sends the uplink data to the eNB; the eNB receives the SR of the UE by using the SR symbol in the uplink contention resource; and receives the uplink data of the UE by using the shared symbol in the uplink contention resource;
  • the eNB may fail to decode the uplink data sent by each UE; and a new contention-based uplink data transmission mode is provided.
  • the uplink data transmission mode can still determine which UEs send uplink data according to the successfully received SR when the eNB does not successfully receive the uplink data of the UE.
  • FIG. 1 is a block diagram of an uplink data transmitting apparatus according to an embodiment of the present invention.
  • FIG. 2 is a block diagram of an uplink data transmitting apparatus according to another embodiment of the present invention.
  • FIG. 3 is a block diagram of an uplink data receiving apparatus according to an embodiment of the present invention.
  • FIG. 4 is a block diagram of an uplink data receiving apparatus according to another embodiment of the present invention.
  • FIG. 5 is a structural block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 6 is a structural block diagram of a base station according to another embodiment of the present invention.
  • FIG. 7 is a block diagram of an uplink data sending and receiving system according to an embodiment of the present invention.
  • FIG. 8 is a flowchart of an uplink data sending method according to an embodiment of the present invention.
  • FIG. 9A and FIG. 9B are schematic diagrams showing a frame structure of an uplink contention resource according to another embodiment of the present invention.
  • FIG. 10 is a flowchart of an uplink data sending method according to another embodiment of the present invention.
  • FIG. 11 is a schematic diagram of a frame structure when the MCS and the data currently transmitted are multiplexed and transmitted according to another embodiment of the present invention.
  • FIG. 12 is a flowchart of an uplink data sending method according to another embodiment of the present invention.
  • FIG. 13 is a flowchart of an uplink data sending method according to another embodiment of the present invention.
  • Subframe In the time domain, LTE transmissions are organized into radio frames of length 10ms, each radio frame is divided into 10 subframes of the same size and length of 1ms, each subframe containing two slots of the same size, each The time slots are composed of a certain number of Orthogonal Frequency Division Multiplexing (OFDM) symbols including a cyclic prefix. If it is a regular cyclic prefix, each time slot includes 7 OFDM symbols. If the cyclic prefix is extended, each slot includes 6 OFDM symbols, hereinafter referred to as symbols.
  • OFDM Orthogonal Frequency Division Multiplexing
  • FIG. 1 is a block diagram of an uplink data transmitting apparatus according to an embodiment of the present invention.
  • the uplink data transmitting apparatus may be implemented as all or part of the UE by software, hardware, or a combination of both.
  • the uplink data device can include a determining module 110 and a sending module 120.
  • the determining module 110 is configured to determine an uplink contention resource, where the uplink contention resource includes an SR symbol used for transmitting the SR and a shared symbol used for transmitting the uplink data.
  • Multiple UEs may share the same uplink contention resource to send uplink data to the eNB in a contention-based manner.
  • a part of the symbols in the uplink contention resources are divided into SR symbols for transmitting the SR; and another part of the symbols in the uplink contention resources are divided into shared symbols for transmitting the uplink data.
  • the SR is used to indicate to the eNB that the UE has a requirement to send uplink data.
  • the sending module 120 is configured to send the SR by using the SR symbol in the uplink contention resource.
  • the sending module 120 is configured to send uplink data by using a shared symbol in the uplink contention resource.
  • the UE first sends an SR to the eNB by using the SR symbol in the uplink contention resource, and sends the uplink data to the eNB by using the shared symbol in the uplink contention resource by confirming the uplink contention resource.
  • the eNB may fail to decode all the uplink data sent by each UE, causing the uplink contention resources to be completely wasted.
  • the problem is that a new contention-based uplink data transmission mode is provided. When the eNB does not successfully receive the uplink data of the UE, the uplink data transmission mode can still determine which UEs send the uplink data according to the successfully received SR. So that the upstream competitive resources will not be wasted.
  • FIG. 2 is a block diagram of an uplink data transmitting apparatus according to another embodiment of the present invention.
  • the uplink data transmitting apparatus may be implemented as all or part of the UE by software, hardware, or a combination of both.
  • the uplink data sending apparatus may include: a determining module 110, a sending module 120, and a receiving module 130.
  • the determining module 110 is configured to determine an uplink contention resource, where the uplink contention resource includes an SR symbol for transmitting an uplink SR and a shared symbol for transmitting uplink data.
  • the determining module 110 is further configured to acquire the UE identifier allocated by the eNB.
  • the determining module 110 is configured to receive DCI (Downlink Control Information) from the physical downlink control channel (English: Physical Downlink Control Channel, PDCCH for short) according to the UE identifier.
  • DCI Downlink Control Information
  • the DCI can only descramble successfully if the UE has the UE identifier.
  • the determining module 110 is further configured to determine, from the DCI, an uplink contention resource configured by the eNB.
  • the determining module 110 is further configured to determine a code channel index allocated by the eNB.
  • the sending module 120 is configured to send the SR by using a code channel corresponding to the UE on the SR symbol in the uplink contention resource.
  • the determining module 110 is further configured to search, according to the pre-stored first correspondence, the first cyclic shift value and the first time domain orthogonal code corresponding to the code channel index.
  • the determining module 110 is further configured to generate a SR by processing the predetermined base sequence by the first cyclic shift value and the first time domain orthogonal code.
  • the sending module 120 is configured to send the SR on the SR symbol in the uplink contention resource for transmission.
  • the sending module 120 is configured to send uplink data in a multi-user multiple input multiple output (MuLtiple User-Multiple Input Multiple Output, MU-MIMO) manner on the shared symbol in the uplink contention resource.
  • MuLtiple User-Multiple Input Multiple Output, MU-MIMO multi-user multiple input multiple output
  • the determining module 110 is further configured to search, according to the pre-stored second correspondence, a pilot index corresponding to the code channel index, and a second cyclic shift value and a second time domain orthogonal code corresponding to the pilot index.
  • the determining module 110 is further configured to process the predetermined base sequence by using the second cyclic shift value and the second time domain orthogonal code to generate a demodulation reference signal (English: Demodulation Reference Signal, DM-RS for short).
  • DM-RS Demodulation Reference Signal
  • the sending module 120 is configured to send the DM-RS by using a reference symbol in the uplink contention resource.
  • the sending module 120 is configured to send uplink data to the data symbols in the uplink contention resource for transmission.
  • the uplink data includes a modulation coding strategy (English: Modulation and Coding Scheme, Jane Weigh: MCS) and the data transmitted this time.
  • a modulation coding strategy English: Modulation and Coding Scheme, Jane Weigh: MCS
  • the sending module 120 is further configured to carry the MCS and the data currently transmitted in the uplink contention resource for multiplexing transmission.
  • the channel coding rate used by the MCS is lower than the channel coding rate used by the data transmitted this time.
  • the receiving module 130 is configured to receive the non-acknowledgment (Nacknowledge: NACK) information that is sent by the eNB.
  • NACK non-acknowledgment
  • the NACK information is sent when the eNB successfully receives the SR but fails to receive the uplink data corresponding to the SR.
  • the receiving module 130 is configured to receive the UL Grant fed back by the eNB, where the UL Grant is sent when the eNB successfully receives the SR but fails to receive the uplink data corresponding to the SR.
  • the sending module 120 is configured to resend the uplink data according to the UL Grant.
  • the uplink data sending apparatus receives the acknowledgment (English: Acknowledge, ACK for short) information or NACK information sent by the eNB, so that the UE fails to transmit the uplink data in a competitive manner. It is also possible to obtain feedback from the eNB side, and further determine whether to continue transmitting other uplink data or retransmit the current uplink data, thereby improving communication efficiency between the eNB and the UE.
  • the acknowledgment English: Acknowledge, ACK for short
  • NACK information NACK information sent by the eNB
  • the uplink data sending apparatus provided by the embodiment further receives the UL grant sent by the eNB by using the UE, so that the UE can retransmit the uplink data in a scheduling manner, which effectively reduces the UE and the eNB.
  • the signaling interaction saves signaling resources on the eNB side.
  • FIG. 3 is a block diagram of an uplink data receiving apparatus according to an embodiment of the present invention.
  • the uplink data receiving apparatus can be implemented as all or part of the eNB by software, hardware, or a combination of both.
  • the uplink data receiving apparatus may include: a configuration module 310 and a receiving module 320.
  • the configuration module 310 is configured to configure uplink contention resources for multiple UEs, where the uplink contention resources include an SR symbol for transmitting the SR and a shared symbol for transmitting uplink data.
  • the receiving module 320 is configured to receive the SR by using the SR symbol in the uplink contention resource.
  • the receiving module 320 is further configured to receive uplink data by using a shared symbol in the uplink contention resource.
  • the eNB configures uplink contention resources for multiple user equipments, receives SRs sent by the UE through SR symbols in the uplink contention resources, and uses shared symbols in the uplink contention resources.
  • the uplink data makes the uplink competitive resources not wasted.
  • FIG. 4 is a block diagram of an uplink data receiving apparatus according to another embodiment of the present invention.
  • the uplink data receiving apparatus can be implemented as all or part of the eNB by software, hardware, or a combination of both.
  • the uplink data receiving apparatus may include: a configuration module 310, a receiving module 320, a processing module 330, and a sending module 340.
  • the configuration module 310 is configured to configure an uplink contention resource for the multiple user equipments, where the uplink contention resources include an SR symbol for transmitting the SR and a shared symbol for transmitting the uplink data.
  • the configuration module 310 is further configured to allocate a corresponding UE identifier to the UE.
  • multiple UEs are assigned the identifiers of the respective UEs.
  • the UE identifier includes:
  • CA-RNTI Contention Access-Radio Network Temporary Identity
  • SPS-CA-RNTI Semi-Persistent-Scheduling-Contention Access-Radio Network Temporary Identity
  • the configuration module 310 is configured to send, for each UE, a DCI on the PDCCH according to the UE identifier.
  • the information format of the DCI is: DCI format0 including an extended field, or a newly defined DCI format CA.
  • the original field of the DCI format0 includes: the starting position and number of the resource block (English: Resource Block, RB for short) occupied by the uplink contention resource, the symbol information corresponding to the shared symbol of the uplink contention resource, and the DCI format format0 of the extended field.
  • the symbol information for indicating the SR symbol is included, that is, the symbol information of the extended field carrying the SR symbol may be selected as: SR symbol number or SR symbol position, and the like.
  • the SR symbol number is used to indicate the number of symbols occupied by the SR in the uplink contention resource; the SR symbol position is used to indicate the symbol position of the SR symbol in the uplink contention resource.
  • the DCI format CA is a redesigned DCI format.
  • the DCI format CA includes: a starting position and number of RBs occupied by the uplink contention resources, symbol information of the SR symbols, and symbol information corresponding to the shared symbols.
  • DCI formatCA includes: RB allocation, number of SR symbols, SR symbol position, and pilot group number.
  • the RB allocation is used to indicate the RB bit occupied by the uplink contention resources in the frequency domain.
  • the number of SR symbols is used to indicate the number of symbols occupied by the uplink contention resource SR; the SR symbol position is used to indicate the symbol position of the SR symbol in the uplink contention resource.
  • the configuration module 310 is configured to allocate a corresponding code channel index to the UE.
  • multiple UEs are assigned respective corresponding code channel indexes.
  • the receiving module 320 is configured to receive the SR by using a code channel corresponding to each UE on the SR symbol of the uplink contention resource.
  • the apparatus further includes a processing module 330.
  • the processing module 330 is configured to find a first cyclic shift value and a first time domain orthogonal code corresponding to each code channel index according to the pre-stored first correspondence.
  • the processing module 330 is configured to detect, according to the first cyclic shift value and the first time domain orthogonal code, whether the signal energy on the code track corresponding to the code channel index on the SR symbol reaches a predetermined threshold.
  • the processing module 330 is configured to determine, when the predetermined threshold is reached, that the SR sent by the UE corresponding to the code channel index is received.
  • the processing module 330 is configured to receive uplink data sent by the MU-MIMO method on the shared symbol in the uplink contention resource.
  • the processing module 330 is configured to determine a code channel index corresponding to the SR for each SR that is successfully received.
  • the processing module 330 is configured to search, according to the pre-stored second correspondence, a pilot index corresponding to the code channel index, and a second cyclic shift value and a second time domain orthogonal code corresponding to the pilot index.
  • the processing module 330 is configured to perform channel estimation on the DM-RS carried in the reference symbol of the uplink contention resource according to the second cyclic shift value and the second time domain orthogonal code, to obtain a channel estimation result.
  • the processing module 330 is configured to perform MU-MIMO decoding on the data symbols in the uplink contention resources according to the channel estimation result to obtain uplink data.
  • the processing module 330 is further configured to perform demodulation and channel decoding on the currently transmitted data according to the MCS after the eNB obtains the uplink data.
  • the processing module 330 is configured to generate NACK information when the SR is successfully received but the uplink data corresponding to the SR is not successfully received.
  • the sending module 340 is configured to send NACK information to the UE corresponding to the SR.
  • the processing module 330 is configured to generate a UL Grant for the UE corresponding to the SR when the SR is successfully received but the uplink data corresponding to the SR is not successfully received.
  • the sending module 340 is configured to send a UL Grant to the UE corresponding to the SR.
  • the uplink data sending apparatus sends ACK information or NACK information to the UE through the eNB, so that even if the UE fails to transmit uplink data in a contention manner, the eNB side feedback can be obtained.
  • the decision is to continue to transmit other uplink data or retransmit the current uplink data, which improves the communication efficiency between the eNB and the UE.
  • the uplink data sending apparatus directly delivers the UL grant by the UE that fails the uplink data transmission in the eNB, so that the UE can retransmit the uplink data in a scheduling manner.
  • the signaling interaction between the UE and the eNB is effectively reduced, and the signaling resources on the eNB side are saved.
  • the uplink data transmitting apparatus and the uplink data receiving apparatus transmit uplink data and receive uplink data
  • only the division of each functional module is described as an example.
  • the above function assignment is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • the receiving module may be implemented by a processor-controlled transceiver; the transmitting module may be implemented by a processor-controlled transceiver; the determining module, the configuration module, and the processing module may be implemented by the processor executing instructions stored in the memory.
  • FIG. 5 is a structural block diagram of a UE according to an embodiment of the present invention.
  • the UE 500 includes a bus 510, and a processor 520, a memory 530, and a transceiver 540 that communicate over a bus 510.
  • the memory 530 is used to store one or more instructions that are configured to be executed by the processor 520. among them:
  • the processor 520 is configured to determine an uplink contention resource, where the uplink contention resource includes an SR symbol used for transmitting the uplink SR and a shared symbol used for transmitting the uplink data.
  • the processor 520 is further configured to control the transceiver 540 to send the SR by using the SR symbol in the uplink contention resource.
  • the processor 520 is further configured to control the transceiver 540 to send uplink data by using a shared symbol in the uplink contention resource.
  • the UE provided in this embodiment determines the uplink contention resource, controls the transceiver to send the SR through the SR symbol in the uplink contention resource, and controls the transceiver to send the uplink data by using the shared symbol in the uplink contention resource;
  • the number of uplinks that the eNB may send to each UE According to all the decoding failures, the problem that the uplink competition resources are completely wasted; and a new contention-based uplink data transmission mode is provided, and the uplink data transmission mode can still be obtained when the eNB does not successfully receive the uplink data of the UE. Determine which UEs sent uplink data based on the successfully received SR.
  • the processor 520 is configured to:
  • the control transceiver 540 transmits the SR through the code channel corresponding to the UE.
  • the processor 520 is further configured to determine a code channel index allocated by the eNB.
  • the processor 520 is configured to search, according to the pre-stored first correspondence, a first cyclic shift value and a first time domain orthogonal code corresponding to the code channel index;
  • the processor 520 is configured to process the predetermined base sequence by using the first cyclic shift value and the first time domain orthogonal code to generate an SR;
  • the processor 520 is configured to control the transceiver 540 to transmit the SR on the SR symbol in the uplink contention resource.
  • the processor 520 is configured to, on a shared symbol in the uplink contention resource, control the transceiver 540 to send the uplink in a multi-user multiple input multiple output MU-MIMO manner. data.
  • the shared symbol includes: a reference symbol for transmitting the DM-RS and a data symbol for transmitting the uplink data;
  • the processor 520 is further configured to determine a code channel index allocated by the eNB;
  • the processor 520 is configured to search, according to the pre-stored second correspondence, a pilot index corresponding to the code channel index, and a second cyclic shift value and a second time domain orthogonal code corresponding to the pilot index;
  • the processor 520 is configured to process the predetermined base sequence by using the second cyclic shift value and the second time domain orthogonal code to generate a DM-RS;
  • the processor 520 is configured to control the transceiver 540 to transmit the DM-RS on the reference symbol in the uplink contention resource, and transmit the uplink data on the data symbol in the uplink contention resource for transmission.
  • the uplink data includes an MCS and data transmitted this time;
  • the processor 520 is configured to carry the MCS and the data currently transmitted in the uplink contention resource for multiplexing transmission;
  • the channel coding code rate used by the MCS is lower than the channel coding rate used by the data currently transmitted.
  • the processor 520 is configured to acquire the UE identifier allocated by the eNB, where the UE identifier includes a CA-RNTI or an SPS-CA-RNTI; and the processor 520 And controlling the transceiver 540 to receive downlink control information DCI from the PDCCH according to the UE identifier.
  • the processor 520 is further configured to determine, from the DCI, an uplink contention resource configured by the eNB;
  • the DCI adopts a DCI format format0 including an extended field, where the original field of the DCI format0 includes: a starting position and a quantity of the RB occupied by the uplink contention resource, and the sharing of the uplink contention resource. Symbol information corresponding to the symbol; the extension field includes symbol information for indicating the SR symbol; or the DCI adopts a DCI format CA, where the DCI format CA includes: a starting position and a quantity of the RB occupied by the uplink contention resource And symbol information of the SR symbol and symbol information corresponding to the shared symbol.
  • the processor 520 is further configured to control the transceiver 540 to receive NACK information fed back by the eNB, where the NACK information is that the eNB successfully receives the SR but fails to receive the uplink corresponding to the SR. Sent when the data is sent;
  • the processor 520 is further configured to control the transceiver 540 to receive the UL Grant fed back by the eNB, where the UL Grant is that the eNB successfully receives the SR but fails to receive the uplink corresponding to the SR.
  • the data is sent by the processor 520, and is configured to control the transceiver 540 to resend the uplink data according to the UL Grant.
  • FIG. 6 is a structural block diagram of an eNB according to an embodiment of the present invention.
  • the eNB 600 includes a bus 610, and a processor 620, a memory 630, and a transceiver 640 that communicate over the bus 610.
  • the memory 630 is used to store one or more instructions that are configured to be executed by the processor 620. among them:
  • the processor 620 is configured to configure an uplink contention resource for the multiple user equipments, where the uplink contention resources include an SR symbol for transmitting an uplink SR and a shared symbol for transmitting uplink data.
  • the processor 620 is further configured to control the transceiver 640 to receive the SR by using the SR symbol in the uplink contention resource;
  • the processor 620 is further configured to control the transceiver 640 to receive the uplink data by using the shared symbol in the uplink contention resource.
  • the eNB controls the transceiver to receive the SR through the SR symbol in the uplink contention resource by configuring an uplink contention resource for multiple user equipments, and controls the The transceiver receives the uplink data by using the shared symbol in the uplink contention resource; when the multiple UEs use the same uplink contention resource to send uplink data to the eNB and generate a contention conflict, the eNB may The decoding of all uplink data sent by each UE fails, resulting in the problem that the uplink contention resources are completely wasted; and a new contention-based uplink data transmission mode is provided, where the uplink data transmission mode is not successfully received by the eNB. When uplink data is received, it is still possible to determine which UEs sent uplink data according to the successfully received SR.
  • the processor 620 is configured to control the transceiver 640 to pass through each of the UEs on the SR symbol of the uplink contention resource.
  • the corresponding code channel receives the SR.
  • the processor 620 is further configured to allocate a corresponding code channel index to the UE.
  • the processor 620 is further configured to: find, according to the pre-stored first correspondence, a first cyclic shift value and a first time domain orthogonal code corresponding to each of the code channel indexes;
  • the processor 520 is configured to detect, according to the first cyclic shift value and the first time domain orthogonal code, whether a signal energy on a code channel corresponding to the code channel index on the SR symbol reaches a predetermined threshold;
  • the processor 520 is configured to determine, if the predetermined threshold is reached, the SR that is sent by the UE that is corresponding to the code channel index.
  • the processor 620 is configured to control, by using the MU-MIMO mode, the transceiver 640 to receive on the shared symbol in the uplink contention resource.
  • the shared symbol includes: a reference symbol for transmitting a DM-RS and a data symbol for transmitting the uplink data;
  • the processor 620 is further configured to allocate a corresponding code channel index to the UE.
  • the processor 620 is configured to determine, according to each of the SRs that are successfully received, the code channel index corresponding to the SR;
  • the processor 620 is configured to search, according to the pre-stored second correspondence, a pilot index corresponding to the code channel index, and a second cyclic shift value and a second time domain corresponding to the pilot index.
  • the processor 620 is configured to perform channel estimation on the DM-RS carried in the reference symbol of the uplink contention resource according to the second cyclic shift value and the second time domain orthogonal code, to obtain a channel. Estimated result;
  • the processor 620 is configured to perform MU-MIMO decoding on the data symbols in the uplink contention resource to obtain the uplink data according to the channel estimation result.
  • the uplink data includes: an MCS and data transmitted this time;
  • the processor 620 is configured to perform demodulation and channel decoding on the data currently transmitted according to the MCS.
  • the processor 620 is configured to allocate a corresponding UE identifier to the UE.
  • the processor 620 is configured to, for each UE, control the transceiver 640 to send downlink control information DCI on the PDCCH according to the UE identifier;
  • the DCI adopts a DCI format format0 including an extended field, where the original field of the DCI format0 includes: a starting position and a quantity of the RB occupied by the uplink contention resource, and the sharing of the uplink contention resource. Symbol information corresponding to the symbol; the extension field includes symbol information for indicating the SR symbol; or the DCI adopts a DCI format CA, where the DCI format CA includes: a starting position and a quantity of the RB occupied by the uplink contention resource And symbol information of the SR symbol and symbol information corresponding to the shared symbol.
  • the processor 620 is further configured to generate NACK information when the SR is successfully received but fails to receive the uplink data corresponding to the SR, where the processor 620 is configured to control the transceiver. 640: Send the NACK information to the UE corresponding to the SR;
  • the processor 620 is further configured to: when the SR is successfully received but the uplink data corresponding to the SR is not successfully received, generate a UL Grant for the UE corresponding to the SR; the processor 620,
  • the transceiver 640 is configured to send the UL Grant to a UE corresponding to the SR.
  • FIG. 7 shows a block diagram of an uplink data transmitting and receiving system according to an embodiment of the present invention.
  • the uplink data sending and receiving system includes: an eNB 710 and a UE 720;
  • the UE 720 includes the uplink data transmitting apparatus provided by any of the embodiment of FIG. 1 and the embodiment of FIG. 2, or the UE 720 is a UE provided in the embodiment of FIG. 5.
  • the eNB 710 includes the uplink data receiving apparatus provided by any of the embodiments of FIG. 3 and the embodiment of FIG. 4, or the eNB 710 is an eNB provided in the embodiment of FIG. 6.
  • FIG. 8 is a flowchart of an uplink data sending method according to an embodiment of the present invention.
  • the uplink data sending method includes:
  • Step 801 The eNB configures an uplink contention resource to multiple UEs, where the uplink contention resource includes an SR symbol for transmitting the SR and a shared symbol for transmitting uplink data.
  • Uplink contention resources Time domain resources on the PUSCH channel.
  • the uplink contention resources include at least one RB.
  • Multiple UEs may share the same uplink contention resource, and send uplink data to the eNB in a contention-based transmission mode.
  • a part of the symbols in the uplink contention resources are divided into SR symbols for transmitting the SR; and another part of the symbols in the uplink contention resources are divided into shared symbols for transmitting the uplink data.
  • the SR is used to indicate to the eNB that the UE has a requirement to send uplink data.
  • Step 802 The UE determines an uplink contention resource, where the uplink contention resource includes an SR symbol used for transmitting the SR and a shared symbol used for transmitting the uplink data.
  • the UE receives the configuration information about the uplink shared resource sent by the eNB, and determines the uplink shared resource of the UE according to the received configuration information.
  • the UE may determine the uplink shared resource according to the configuration mode agreed in advance.
  • the UE After receiving the configuration information of the eNB for the uplink contention resources, the UE determines the uplink contention resources from the configuration information.
  • Step 803 The UE sends an SR to the eNB by using the SR symbol in the uplink contention resource, and sends the uplink data to the eNB by using the shared symbol in the uplink contention resource.
  • the UE If the UE needs to send uplink data, the UE simultaneously sends the SR and the uplink data in the same uplink contention resource. If there are multiple UEs that need to send uplink data, multiple UEs send their respective SR and uplink data in the same uplink contention resource.
  • Step 804 The eNB receives the SR of the UE by using the SR symbol in the uplink contention resource, and receives the uplink data of the UE by using the shared symbol in the uplink contention resource.
  • the UE sends the SR to the eNB by using the SR symbol in the uplink contention resource, and sends the uplink data to the eNB by using the shared symbol in the uplink contention resource;
  • the SR symbol receives the SR of the UE; and receives the uplink data of the UE by using the shared symbol in the uplink contention resource; and solves the problem that when multiple UEs use the same uplink contention resource to send uplink data to the eNB and generate a contention conflict in the prior art,
  • the eNB may fail to decode all the uplink data sent by each UE, causing the uplink competing resources to be completely wasted; and providing a new contention-based uplink data transmission mode, the uplink data transmission mode is not successfully received by the eNB.
  • the uplink data of the UE is received, it is still possible to determine which UEs sent the uplink data according to the successfully received SR.
  • step of the UE side in the embodiment of FIG. 8 can be separately implemented as the uplink data transmission method on the UE side, and the step on the eNB side can be separately implemented as the uplink data receiving method on the eNB side.
  • the eNB configures an uplink contention resource to the UE, where the uplink contention resource includes an SR symbol for transmitting the SR and a shared symbol for transmitting the uplink data.
  • the shared symbols include reference symbols and data symbols.
  • the reference symbol is used to transmit the DM-RS, and the DM-RS can be used by the eNB to estimate the channel of the specified UE, and then receive the uplink data of the designated UE; and the data symbol is used to transmit the uplink data.
  • the uplink contention resources include symbols for three purposes: SR symbols, reference symbols, and data symbols.
  • SR symbols There are two ways for the SR symbols to be arranged in the uplink contention resources, which may be consecutive or discrete, and the arrangement of the reference symbols is fixed.
  • FIG. 9A and FIG. 9B frame structures of a single uplink contention resource in two different arrangements are respectively shown.
  • FIG. 9A is a schematic diagram of a frame structure of a single uplink contention resource in which SR symbols are consecutively arranged.
  • the SR symbol occupies 3 symbols and is arranged in a continuous arrangement in the first to third symbol positions; the reference symbol occupies 2 symbols and is arranged in the fourth symbol position of each time slot, that is, The 4th symbol and the 11th symbol from left to right in the figure; the remaining symbols are data symbols.
  • the SR symbol is applied in a continuous arrangement for low-speed scenes, which is advantageous for centralized transmission of SR.
  • FIG. 9B is a schematic diagram of a frame structure of a single uplink contention resource in which SR symbols are discretely arranged.
  • the SR symbol occupies 2 symbols, and is arranged in a discrete arrangement manner at the 2nd symbol position and the 13th symbol position; the reference symbol occupies 2 symbols and is respectively arranged at the fourth symbol position of each time slot. That is, the 4th symbol and the 11th symbol from left to right in the figure; the remaining symbols are data symbols.
  • the discrete arrangement of SR symbols is suitable for high-speed moving scenes, which facilitates the use of time diversity against Doppler shift.
  • the number of RBs occupied by the uplink contending resources in the frequency domain is allocated by the eNB.
  • the RB number is not limited in the embodiment of the present invention.
  • the number of RBs is not specifically limited.
  • the number of UEs carried on the resource is related to the number of the SR symbols in FIG. 9A, and the two SR symbols are used as an example in FIG. 9B. However, the number and arrangement of the SR symbols are not specifically limited in the embodiment of the present invention.
  • each slot includes 6 symbols, and reference symbols are arranged in the 3rd symbol of each slot.
  • the number and arrangement of the related SR symbols can be referred to as shown in FIG. 9A and FIG. 9B, and details are not described herein again.
  • each UE sends an SR through a code channel corresponding to the UE on the SR symbol in the uplink contention resource.
  • the eNB receives the SR through the code channel corresponding to each UE on the SR symbol in the uplink contention resource.
  • the eNB can receive the SRs sent by the UEs because each UE transmits the SR in a code division manner. Thus, the eNB can know which UEs sent uplink data on the uplink contention resources.
  • the second point to be explained is that each UE is on the shared symbol in the uplink contention resource,
  • the MU-MIMO method transmits uplink data.
  • the eNB receives the uplink data sent by the UE in the MU-MIMO manner on the shared symbol in the uplink contention resource.
  • MU-MIMO technology In the uplink transmission, MU-MIMO technology is adopted, and multi-user parallel transmission can be realized by using channel irrelevance between UEs.
  • the premise of adopting MU-MIMO technology in uplink transmission is to obtain channel estimation for each UE, so each UE needs to use a different DM-RS.
  • the eNB can perform channel estimation on each UE through the DM-RS of each UE, and perform MU-MIMO decoding according to the channel estimation result, thereby successfully receiving uplink data.
  • FIG. 10 is a flowchart of an uplink data sending method according to another embodiment of the present invention.
  • the uplink data sending method includes:
  • step 1001 the eNB allocates a corresponding code channel index and a UE identifier to the UE, where m ⁇ 2.
  • the eNB allocates a corresponding code channel index and a corresponding UE identifier to the multiple UEs.
  • the eNB groups the UEs that are in the radio resource control connection state (English: Radio Resource Control-CONNECTED, RRC-CONNECTED for short) and uplink synchronization.
  • the eNB Since the UE in the RRC-CONNECTED state has performed data interaction with the eNB, the eNB has learned the single transmission packet size, QoS class, and channel information of each UE. The eNB may group the UE based on the information, and multiple UEs allocated to the same group are configured with the same uplink contention resources.
  • the eNB allocates UEs with a single transmission packet size of approximately equal to the same group; for example, the eNB allocates UEs with different arrival angles and inter-UE channels to the same group.
  • the eNB allocates a corresponding code channel index and a UE identifier to the UEs of the same group by using a predetermined message.
  • the eNB may allocate the corresponding code channel index and the corresponding UE identifier to the m UEs in the same group.
  • the predetermined message includes, but is not limited to, an RRC message.
  • the eNB simultaneously allocates a code channel index and a UE identity using the same RRC message; or, for each UE, the eNB allocates a code channel index and a UE identity using different RRC messages, respectively.
  • the UE identifier comprises: a CA-RNTI and/or an SPS-CA-RNTI.
  • Step 1002 The UE acquires a code channel index and a UE identifier allocated by the eNB.
  • Step 1003 For each UE, the eNB sends a DCI on the PDCCH according to the UE identity of the UE.
  • the DCI carries configuration information of uplink competing resources.
  • the eNB configures the same uplink contention resources to multiple UEs by using a dynamic scheduling mode or a semi-static scheduling mode.
  • the dynamic scheduling mode is a mode in which the eNB schedules the current time-frequency resources to be used by the eNB through one signaling.
  • the semi-static scheduling mode is a mode in which the eNB schedules the periodically used time-frequency resources to the UE by using one signaling.
  • the eNB uses the CA-RNTI of the UE to scramble the Cyclic Redundancy Check (CRC) in the DCI information, and then carries the scrambled CRC.
  • CRC Cyclic Redundancy Check
  • the DCI information is transmitted to the UE through the PDCCH.
  • the eNB uses the SPS-CA-RNTI of the UE to scramble the CRC in the DCI information, and then transmits the DCI information carrying the scrambled CRC to the UE through the PDCCH.
  • the information format of the DCI is: DCI format0 including an extended field, or a newly defined DCI format CA.
  • the original field of the DCI format0 includes: the starting position and number of the RB occupied by the uplink contention resource, and the symbol information corresponding to the shared symbol of the uplink contention resource; the DCI format format0 of the extended field includes symbol information for indicating the SR symbol, That is, the symbol information carrying the SR symbol in the extension field may be selected as: the number of SR symbols or the position of the SR symbol, and the like.
  • the SR symbol number is used to indicate the number of symbols occupied by the SR in the uplink contention resource; the SR symbol position is used to indicate the symbol position of the SR symbol in the uplink contention resource.
  • the DCI format CA is a redesigned DCI format.
  • the DCI format CA includes: a starting position and number of RBs occupied by the uplink contention resources, symbol information of the SR symbols, and symbol information corresponding to the shared symbols.
  • DCI formatCA includes: RB allocation, number of SR symbols, SR symbol position, and pilot group number.
  • the RB allocation is used to indicate the RB position occupied by the uplink contention resource in the frequency domain, and the number of SR symbols is used to indicate the number of symbols occupied by the uplink contention resource SR; the SR symbol position is used to indicate the symbol position of the SR symbol in the uplink contention resource.
  • DCI formatCA includes but is not limited to the following table:
  • the number of bits occupied by the RB allocation is related to the total number of RBs in the uplink; the number of SR symbols occupies 2 bits, and the position of the SR symbol occupies 14 bits.
  • the value of the i-th bit is 1, it represents the i-th in the uplink contention resource.
  • the symbols are SR symbols; when the value of the i-th bit is 0, it means that the ith symbol in the uplink contention resource is not an SR symbol.
  • the number of bits occupied by the RB allocation, the number of SR symbols, and the position of the SR symbol is only an example. In the present embodiment, the number of bits occupied by the RB allocation, the number of SR symbols, and the position of the SR symbol is not limited.
  • the specific content of the DCI formatCA may also include other information.
  • the DCI format CA when the frequency hopping technology is supported, the DCI format CA also includes a frequency hopping identifier, which occupies 1 bit, and the frequency hopping identifier is used to indicate whether the two slots of the uplink contention resource are frequency hopping.
  • the DCI format CA when there are multiple groups of pilot resources used to generate the DM-RS, the DCI format CA also carries the pilot group number, which occupies 2 bits, and the pilot group number is used to indicate to the UE the guide used in this time. Which group is the group in which the frequency resource is located.
  • Step 1004 The UE receives the DCI sent by the eNB from the PDCCH according to the UE identifier.
  • the UE receives the DCI transmitted by the eNB from the PDCCH through the UE identity.
  • the DCI can only descramble successfully if the UE has the UE identifier.
  • the UE acquires related resource configuration information of the uplink contention resources configured by the eNB from the DCI.
  • the UE uses the CA-RNTI to descramble to obtain DCI information.
  • the UE uses the SPS-CA-RNTI to descramble to obtain DCI information.
  • Step 1005 The UE searches for the first cyclic shift value and the first time domain orthogonal code corresponding to the code channel index according to the pre-stored first correspondence.
  • the eNB and the UE are pre-stored with a first correspondence, where the first correspondence is a correspondence between the code channel index and the first cyclic shift value and the first time domain orthogonal code.
  • the first cyclic shift value and the first time domain orthogonal code are information required when the UE generates the SR.
  • the first cyclic shift value refers to a cyclic shift value when cyclically shifting a predetermined base sequence to generate an SR sequence.
  • the length of the SR sequence is: the number of RBs in the uplink contention resource *12.
  • the base sequence may be a Zadoff-Chu sequence, referred to as a ZC sequence.
  • the first time domain orthogonal code is an orthogonal sequence used when performing time domain expansion on the SR sequence, where
  • the first time domain orthogonal code is a DFT sequence or a walsh sequence.
  • the DFT sequence has a length of 3
  • the walsh sequence has a length of 4.
  • the DFT sequence of length 3 is shown in Table 2 below:
  • the walsh sequence of length 4 is shown in Table 3 below:
  • the UE finds a corresponding first cyclic shift value and a first time domain orthogonal code by using a code channel index allocated by the eNB.
  • Step 1006 The UE generates a SR by processing the predetermined base sequence by using a first cyclic shift value and a first time domain orthogonal code.
  • Multiple UEs may use the same base sequence or different base sequences.
  • UEs located in the same cell use the same base sequence. Which base sequence is used by the UE is well known to those skilled in the art, and will not be described in detail in this embodiment.
  • the UE cyclically shifts the predetermined base sequence by the first cyclic shift value to generate an SR sequence with the length of the RB number *12, and then performs time domain expansion on the SR sequence by using the first time domain orthogonal code to generate the SR.
  • Step 1007 The UE searches for a pilot index corresponding to the code track index, and a second cyclic shift value and a second time domain orthogonal code corresponding to the pilot index according to the pre-stored second correspondence.
  • the eNB and the UE are pre-stored with a second correspondence, where the second correspondence includes: a correspondence between the code channel index and the pilot index, and the pilot index is orthogonal to the second cyclic shift value and the second time domain.
  • the second cyclic shift value and the second time domain orthogonal code are when the UE generates the DM-RS The information needed.
  • a code channel index corresponds to only one pilot index, and one pilot index can correspond to more than one code channel index.
  • the code track index 01 corresponds to the pilot index 07.
  • a pilot index corresponds to a set of second cyclic shift values and a second time domain orthogonal code. As shown in Table 4 below:
  • the pilot index is 0 to 23
  • the second cyclic shift value is The second time domain orthogonal code is [w ( ⁇ ) (0) w ( ⁇ ) (1)].
  • the eNB indicates to the UE the pilot group number used this time in the DCI information in step 1003.
  • the UE After learning the code channel index, the UE searches for the corresponding pilot index by using the code channel index, and then searches for the corresponding second cyclic shift value and the second time domain orthogonal code by using the pilot index.
  • the UE searches for the corresponding pilot index in the currently used pilot resource group by using the code channel index.
  • the pilot group number of the pilot resource group is indicated by the eNB in the DCI information.
  • Step 1008 The UE processes the predetermined base sequence by the second cyclic shift value and the second time domain orthogonal code to generate a DM-RS.
  • the base sequence used by the UE in step 1008 is generally the same as the base sequence used in step 1006.
  • the UE cyclically shifts the predetermined base sequence by the second cyclic shift value to generate a reference signal sequence with the length of the RB number *12, and then uses the second time domain orthogonal code to perform time domain expansion on the reference signal sequence to generate the DM. -RS.
  • Step 1009 The UE sends the SR to the SR symbol in the uplink contention resource, and the DM-RS is carried on the reference symbol in the uplink contention resource to transmit the uplink data.
  • the data symbol on the row is contending for transmission.
  • the UE simultaneously transmits the SR, the DM-RS, and the uplink data on the same uplink competing resource.
  • the uplink data includes: data that is transmitted this time.
  • the uplink data includes: an MCS and data transmitted this time.
  • the UE multiplexes and transmits the MCS and the data currently transmitted in different positions of the data symbols in the uplink contention resources.
  • the channel coding rate used by the MCS is lower than the channel coding rate used by the data transmitted this time.
  • the transmission position of the MCS and the data transmitted this time is shown in FIG.
  • the MCS is arranged in the top resource element to facilitate the eNB to preferentially decode and obtain the MCS.
  • the data of the current transmission is arranged in the lower resource element, so that the eNB can use the priority decoding to obtain the MCS to decode the subsequently decoded data. .
  • Step 1010 The eNB searches for a first cyclic shift value and a first time domain orthogonal code corresponding to each code channel index according to the pre-stored first correspondence.
  • the uplink contention resource is allocated for multiple UEs, there are corresponding multiple code channel indexes. Since the multiple UEs are all likely to transmit data on the uplink contention resources, the eNB needs to detect whether there is an SR on each code channel.
  • the eNB searches for a first cyclic shift value and a first time domain orthogonal code corresponding to each code channel index according to the pre-stored first correspondence.
  • Step 1011 The eNB detects, according to the first cyclic shift value and the first time domain orthogonal code, whether the signal energy on the code channel corresponding to the code channel index on the SR symbol reaches a predetermined threshold.
  • the eNB does not need to perform detailed decoding on the SR received on a certain code channel.
  • the eNB only needs to detect whether the signal energy on each code channel reaches a predetermined threshold on the SR symbol of the uplink contention resource.
  • step 1014 is entered.
  • the eNB determines that no SR is received on the code track.
  • Step 1012 If the predetermined threshold is reached, the eNB determines that the SR sent by the UE corresponding to the code channel index is received.
  • Step 1013 For each SR successfully received, the eNB determines a code channel index corresponding to the SR.
  • the eNB For the successfully received SR, the eNB attempts to receive the uplink data of the UE corresponding to the SR. At this time, the eNB needs to perform channel estimation by using the DM-RS transmitted by the UE, and then according to channel estimation. The result receives uplink data.
  • Step 1014 The eNB searches for a pilot index corresponding to the code track index, and a second cyclic shift value and a second time domain orthogonal code corresponding to the pilot index according to the pre-stored second correspondence.
  • Step 1015 The eNB performs channel estimation on the DM-RS carried in the reference symbol of the uplink contention resource according to the second cyclic shift value and the second time-domain orthogonal code, to obtain a channel estimation result.
  • Step 1016 The eNB performs MU-MIMO decoding on the data symbols in the uplink contention resources according to the channel estimation result to obtain uplink data.
  • steps 1014 through 1016 are performed n times.
  • the eNB performs demodulation and channel decoding on the data transmitted according to the MCS.
  • the eNB allocates a corresponding UE identifier to the UE by using the eNB; the eNB sends the DCI to the multiple UEs according to the UE identifier, and the UE acquires the uplink contention resources configured by the eNB from the DCI;
  • the SR is transmitted to the eNB by using the SR symbol in the uplink contention resource configured by the eNB, and the uplink data is sent to the eNB by using the shared symbol in the uplink contention resource; the eNB receives the SR that is sent by the UE through the SR symbol in the uplink contention resource, and the UE competes for the resource through the uplink.
  • the eNB may fail to decode all the uplink data sent by each UE when the multiple UEs use the same uplink contention resources to send the uplink data to the eNB to generate a contention conflict, which causes the uplink contention resources to be completely wasted; A new contention-based uplink data transmission mode is provided.
  • the uplink data transmission mode can still determine which UEs send the uplink data according to the successfully received SR.
  • the procedure on the UE side may be separately implemented as a method for transmitting uplink data on the UE side, and the step on the eNB side may separately implement a method of receiving uplink data on the eNB side.
  • step 1016 the following steps are further included, as shown in FIG. 12:
  • Step 1017 Upon successfully receiving the SR and the uplink data corresponding to the SR, the eNB generates ACK information, and sends the ACK information to the corresponding UE.
  • the eNB For one UE, if the eNB successfully receives the SR and uplink data sent by the UE, the eNB generates acknowledgement information, that is, ACK information.
  • the eNB can indicate the channel through the physical layer HARQ (English: Physical Hybrid ARQ)
  • the specified downlink resource of Indicator referred to as PHICH, sends ACK information to the UE.
  • the resource location of the specified downlink resource may be calculated by the resource location of the uplink contention resource and the DM-RS of the UE, and the calculation formula may refer to the related LTE communication protocol.
  • Step 1018 The UE receives the ACK information.
  • the UE receives the ACK information through the designated downlink resource of the PHICH channel.
  • the UE may continue to send other uplink data in the contention mode.
  • Step 1019 After successfully receiving the SR and failing to successfully receive the uplink data corresponding to the SR, the eNB generates NACK information, and sends the NACK information to the corresponding UE.
  • the eNB For one UE, if the eNB successfully receives the SR sent by the UE but fails to receive the uplink data sent by the UE, the eNB generates non-acknowledgement information, that is, NACK information.
  • the eNB may send NACK information to the UE through the designated downlink resource of the PHICH.
  • the resource location of the specified downlink resource may be calculated by the resource location of the uplink contention resource and the DM-RS of the UE, and the calculation formula may refer to the related LTE communication protocol.
  • Step 1020 The UE receives the NACK information.
  • the UE receives the NACK information through the designated downlink resource of the PHICH channel.
  • the UE may resend the uplink data in a contention mode.
  • the eNB sends the ACK information or the NACK information to the UE, so that even if the UE fails to transmit the uplink data in a contention manner, the UE can obtain the feedback of the eNB side, and then decide to continue to transmit other uplink data or retransmit.
  • This uplink data improves the communication efficiency between the eNB and the UE.
  • steps 1019 and 1020 may be replaced by the steps 1021 to 1024, as shown in FIG.
  • Step 1021 After successfully receiving the SR but failing to receive the uplink data corresponding to the SR, the eNB generates a UL Grant for the UE corresponding to the SR.
  • the UL Grant is indication information when the eNB allocates uplink transmission resources to the UE in a scheduling manner. That is, the UL Grant carries configuration information of an uplink transmission resource that the eNB specifically allocates to the UE.
  • Step 1022 The eNB sends a UL Grant to the UE.
  • the eNB transmits the UL Grant to the UE through DCI format0 in the PDCCH channel.
  • Step 1023 the UE receives the UL Grant fed back by the eNB;
  • the UL Grant is sent when the eNB successfully receives the SR but fails to receive the uplink data corresponding to the SR.
  • step 1024 the UE resends the uplink data according to the UL Grant.
  • the UE that fails the uplink data transmission by the eNB directly delivers the UL grant, so that the UE can retransmit the uplink data in a scheduling manner, which effectively reduces the signaling interaction between the UE and the eNB.
  • the signaling resources on the eNB side are saved.
  • the steps of the UE side in the embodiment of FIG. 12 and the embodiment of FIG. 13 can be separately implemented as the uplink data transmission method on the UE side, and the steps on the eNB side can be separately implemented as the uplink data of the eNB side.
  • Receiving method the steps of the UE side in the embodiment of FIG. 12 and the embodiment of FIG. 13 can be separately implemented as the uplink data transmission method on the UE side, and the steps on the eNB side can be separately implemented as the uplink data of the eNB side.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

Abstract

本发明实施例提供了一种上行数据发送装置及方法,涉及通信领域,所述方法包括:通过eNB向多个UE配置相同的上行竞争资源,m≥2;UE通过上行竞争资源中的SR符号向eNB发送SR;通过上行竞争资源中的共享符号向eNB发送上行数据;eNB接收UE通过上行竞争资源中的SR符号发送的SR;eNB接收UE通过上行竞争资源中的共享符号发送的上行数据。解决了多个UE在相同的上行竞争资源向eNB发送上行数据产生竞争冲突时,导致该上行竞争资源完全被浪费的问题;达到了在eNB未成功接收到UE通过上行竞争资源发送的上行数据时,依然可以根据成功接收到的SR确定哪个UE发送了上行数据。

Description

上行数据发送装置、接收装置及方法 技术领域
本发明涉及通信领域,特别涉及一种上行数据发送装置、接收装置及方法。
背景技术
在长期演进(英文:Long Term Evolution,简称:LTE)中,用户设备(英文:User Equipment,简称:UE)通常基于调度的发送方式向演进型基站(英文:Evolved Node B,简称:eNB)发送上行数据。
在UE需要发送上行数据时,UE首先要向eNB发送上行调度请求(英文:Scheduling Request,简称:SR);eNB根据该SR向UE配置一个上行调度授权(英文:Up Link Grant,简称:UL Grant),该UL Grant用于向UE配置上行传输资源。UE在正确解码得到UL Grant时,根据eNB配置的上行传输资源向eNB发送上行数据。整个过程大概需要耗时22.5ms。
为了减少该过程的耗时,提出了基于竞争的(英文:Contention Based,简称:CB)发送方式。在基于竞争的发送方式中,eNB预先向多个用户设备配置相同的上行竞争资源。当UE存在上行数据需要发送时,UE使用最近一个上行竞争资源向eNB发送上行数据。但如果有多个UE同时在这个上行竞争资源上向eNB发送上行数据时,会发生竞争冲突。
发明内容
为了解决现有技术的问题,本发明实施例提供了一种上行数据发送装置、接收装置及方法。
第一方面,本发明实施例提供了一种上行数据发送装置,所述装置包括:
确定模块,用于确定上行竞争资源,所述上行竞争资源包括用于传输上行调度请求SR的SR符号和用于传输上行数据的共享符号;
发送模块,用于通过所述上行竞争资源中的所述SR符号发送所述SR;
所述发送模块,用于通过所述上行竞争资源中的所述共享符号发送所述上行数据。
在第一方面的第一种可能的实施方式中,所述发送模块,用于在所述上行竞争资源中的所述SR符号上,通过与本UE对应的码道发送所述SR。
结合第一方面的第一种可能的实施方式,在第一方面的第二种可能的实施方式中,所述确定模块,用于确定所述eNB分配的码道索引;
所述确定模块,用于根据预存的第一对应关系,查找出与所述码道索引对应的第一循环移位值和第一时域正交码;
所述确定模块,用于将预定的基序列经过所述第一循环移位值和所述第一时域正交码的处理,生成所述SR;
所述确定模块,用于将所述SR承载在所述上行竞争资源中的所述SR符号上进行发送。
在第一方面的第三种可能的实施方式中,所述发送模块,用于在所述上行竞争资源中的所述共享符号上,以多用户多入多出MU-MIMO方式发送所述上行数据。
结合第一方面的第三种可能的实施方式,在第一方面的第四种可能的实施方式中,所述共享符号包括:用于传输解调参考信号DM-RS的参考符号和用于传输所述上行数据的数据符号;
所述确定模块,用于确定所述eNB分配的码道索引;
所述确定模块,用于根据预存的第二对应关系,查找出与所述码道索引对应的导频索引,和与所述导频索引对应的第二循环移位值和第二时域正交码;用于将预定的基序列经过所述第二循环移位值和所述第二时域正交码的处理,生成所述DM-RS;
所述发送模块,用于将所述DM-RS承载在所述上行竞争资源中的所述参考符号上进行发送;
所述发送模块,用于将所述上行数据承载在所述上行竞争资源中的所述数据符号上进行发送。
结合第一方面的第四种可能的实施方式,在第一方面的第五种可能的实施方式中,所述上行数据包括:调制编码策略MCS和本次传输的数据;
所述发送模块,用于将所述MCS和所述本次传输的数据分别承载在所述上行竞争资源中进行复用传输;
其中,所述MCS采用的信道编码码率低于所述本次传输的数据采用的信道编码码率。
结合第一方面或第一方面的第一种可能的实施方式或第一方面的第二种可能的实施方式或第一方面的第三种可能的实施方式或第一方面的第四种可能的实施方式或第一方面的第五种可能的实施方式,在第一方面的第六种可能的实施方式中,所述装置还包括接收模块;
所述确定模块,用于获取所述eNB分配的UE标识,所述UE标识包括竞争接入小区无线网络临时标识CA-RNTI或半静态调度竞争接入小区无线网络临时标识SPS-CA-RNTI;
所述接收模块,用于根据所述UE标识从物理下行控制信道PDCCH接收下行控制信息DCI;
所述确定模块,用于从所述DCI中确定所述eNB配置的上行竞争资源;
其中,所述DCI采用包括有扩展字段的DCI格式format0,所述DCI format0的原有字段包含:所述上行竞争资源所占用的资源块的起始位置和数量,所述上行竞争资源的所述共享符号对应的符号信息;所述扩展字段包括用于指示SR符号的符号信息;或,所述DCI采用DCI formatCA,所述DCI formatCA包括:所述上行竞争资源所占用的资源块的起始位置和数量,所述SR符号的符号信息和所述共享符号对应的符号信息。
结合第一方面或第一方面的第一种可能的实施方式或第一方面的第二种可能的实施方式或第一方面的第三种可能的实施方式或第一方面的第四种可能的实施方式或第一方面的第五种可能的实施方式中,在第一方面的第七种可能的实施方式中,所述装置,还包括:
接收模块,用于接收所述eNB反馈的非确认NACK信息,所述NACK信息是所述eNB成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时发送的;
所述接收模块,用于接收所述eNB反馈的上行调度授权UL Grant,所述UL Grant是所述eNB成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时发送的;所述发送模块,用于根据所述UL Grant重新发送所述上行数据。
第二方面,本发明实施例提供了一种上行数据接收装置,所述装置包括:
配置模块,用于为多个用户设备UE配置上行竞争资源,所述上行竞争资源包括用于传输上行调度请求SR的SR符号和用于传输上行数据的共享符号;
接收模块,用于通过所述上行竞争资源中的所述SR符号接收所述SR;
所述接收模块,用于通过所述上行竞争资源中的所述共享符号接收所述上行数据。
在第二方面的第一种可能的实施方式中,所述接收模块,用于在所述上行竞争资源的所述SR符号上,通过与每个所述UE对应的码道接收所述SR。
结合第二方面的第一种可能的实施方式,在第二方面的第二种可能的实施方式中,所述装置,还包括:处理模块;
所述配置模块,用于为所述UE分配对应的码道索引;
所述处理模块,用于根据预存的第一对应关系,查找出与每个所述码道索引对应的第一循环移位值和第一时域正交码;
所述处理模块,用于根据所述第一循环移位值和所述第一时域正交码,检测所述SR符号上与所述码道索引对应的码道上的信号能量是否达到预定阈值;
所述处理模块,用于若达到所述预定阈值,则确定接收到与所述码道索引对应的UE发送的所述SR。
在第二方面的第三种可能的实施方式中,所述接收模块,用于在所述上行竞争资源中的所述共享符号上,接收以多用户多入多出MU-MIMO方式发送的所述上行数据。
结合第二方面的第三种可能的实施方式,在第二方面的第四种可能的实施方式中,所述共享符号包括:用于传输解调参考信号DM-RS的参考符号和用于传输所述上行数据的数据符号;所述装置还包括:处理模块;
所述配置模块,用于为所述UE分配对应的码道索引;
所述处理模块,用于对于成功接收到的每个所述SR,确定所述SR对应的所述码道索引;
所述处理模块,用于根据预存的第二对应关系,查找出与所述码道索引对应的导频索引,和与所述导频索引对应的第二循环移位值和第二时域正交码;
所述处理模块,用于根据所述第二循环移位值和所述第二时域正交码对所述上行竞争资源的所述参考符号中承载的解调参考信号DM-RS进行信道估计,得到信道估计结果;
所述处理模块数据译码单元,用于根据所述信道估计结果,对所述上行竞争资源中的所述数据符号进行多用户多入多出MU-MIMO译码得到所述上行数据。
结合第二方面的第四种可能的实施方式,在第二方面的第五种可能的实施方式中,所述上行数据包括:调制编码策略MCS和本次传输的数据;
所述处理模块,用于根据所述MCS对所述本次传输的数据进行解调和信道解码。
结合第二方面或第二方面的第一种可能的实施方式或第二方面的第二种可能的实施方式或第二方面的第三种可能的实施方式或第二方面的第四种可能的实施方式或第二方面的第五种可能的实施方式中,在第二方面的第六种可能的实施方式中,所述装置,还包括:发送模块;
所述配置模块,用于为所述UE分配对应的UE标识;
所述发送模块,用于对于每个UE,根据UE标识在物理下行控制信道PDCCH发送下行控制信息DCI;
其中,所述DCI采用包括有扩展字段的DCI格式format0,所述DCI format0的原有字段包含:所述上行竞争资源所占用的资源块的起始位置和数量,所述上行竞争资源的所述共享符号对应的符号信息;所述扩展字段包括用于指示SR符号的符号信息;或,所述DCI采用DCI formatCA,所述DCI formatCA包括:所述上行竞争资源所占用的资源块的起始位置和数量,所述SR符号的符号信息,和所述共享符号对应的符号信息。
结合第二方面或第二方面的第一种可能的实施方式或第二方面的第二种可能的实施方式或第二方面的第三种可能的实施方式或第二方面的第四种可能的实施方式或第五种可能的实施方式中,在第二方面的第七种可能的实施方式中,所述装置,还包括:
生成模块,用于在成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时,生成非确认NACK信息;发送模块,用于向所述SR对应的所述UE发送所述NACK信息;
或,所述生成模块,用于在成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时,为所述SR对应的UE生成上行调度授权UL Grant;所述发送模块,用于向所述SR对应的UE发送所述UL Grant。
第三方面,本发明实施例提供了一种用户设备,所述用户设备包括:处理器、存储器和收发器,其中,所述存储器用于存储一个或者一个以上的指令,所述指令被配置成由所述处理器执行;
所述处理器,用于确定上行竞争资源,所述上行竞争资源包括用于传输上 行调度请求SR的SR符号和用于传输上行数据的共享符号;
所述处理器,还用于控制所述收发器通过所述上行竞争资源中的所述SR符号发送所述SR;
所述处理器,还用于控制所述收发器通过所述上行竞争资源中的所述共享符号发送所述上行数据。
在第三方面的第一种可能的实施方式中,所述处理器,还用于在所述上行竞争资源中的所述SR符号上,控制所述收发器通过与本UE对应的码道发送所述SR。
结合第三方面的第一种可能的实施方式,在第三方面的第二种可能的实施方式中,所述处理器,还用于确定所述eNB分配的码道索引;
所述处理器,还用于根据预存的第一对应关系,查找出与所述码道索引对应的第一循环移位值和第一时域正交码;
所述处理器,还用于将预定的基序列经过所述第一循环移位值和所述第一时域正交码的处理,生成所述SR;
所述处理器,还用于控制所述收发器将所述SR承载在所述上行竞争资源中的所述SR符号上进行发送。
在第三方面的第三种可能的实施方式中,
所述处理器,用于在所述上行竞争资源中的所述共享符号上,控制所述收发器以多用户多入多出MU-MIMO方式发送所述上行数据。
结合第三方面的第三种可能的实施方式,在第三方面的第四种可能的实施方式中,所述共享符号包括:用于传输解调参考信号DM-RS的参考符号和用于传输所述上行数据的数据符号;
所述处理器,还用于确定所述eNB分配的码道索引;
所述处理器,还用于根据预存的第二对应关系,查找出与所述码道索引对应的导频索引,和与所述导频索引对应的第二循环移位值和第二时域正交码;
所述处理器,还用于将预定的基序列经过所述第二循环移位值和所述第二时域正交码的处理,生成所述DM-RS;
所述处理器,还用于控制所述收发器将所述DM-RS承载在所述上行竞争资源中的所述参考符号上进行发送,将所述上行数据承载在所述上行竞争资源中的所述数据符号上进行发送。
结合第三方面的第四种可能的实施方式,在第三方面的第五种可能的实施 方式中,所述上行数据包括调制编码策略MCS和本次传输的数据;
所述处理器,还用于将所述MCS和所述本次传输的数据分别承载在所述上行竞争资源中进行复用传输;
其中,所述MCS采用的信道编码码率低于所述本次传输的数据采用的信道编码码率。
结合第三方面或第三方面的第一种可能的实施方式或第三方面的第二种可能的实施方式或第三方面的第三种可能的实施方式或第三方面的第四种可能的实施方式或第三方面的第五种可能的实施方式,在第三方面的第六种可能的实施方式中,所述处理器,用于:
所述处理器,还用于获取所述eNB分配的UE标识,所述UE标识包括竞争接入小区无线网络临时标识CA-RNTI或半静态调度竞争接入小区无线网络临时标识SPS-CA-RNTI;
所述处理器,还用于控制所述收发器根据所述UE标识从物理下行控制信道PDCCH接收下行控制信息DCI;
所述处理器,还用于从所述DCI中确定所述eNB配置的上行竞争资源;
其中,所述DCI采用包括有扩展字段的DCI格式format0,所述DCI format0的原有字段包含:所述上行竞争资源所占用的资源块的起始位置和数量,所述上行竞争资源的所述共享符号对应的符号信息;所述扩展字段包括用于指示SR符号的符号信息;或,所述DCI采用DCI formatCA,所述DCI formatCA包括:所述上行竞争资源所占用的资源块的起始位置和数量,所述SR符号的符号信息和所述共享符号对应的符号信息。
结合第三方面或第三方面的第一种可能的实施方式或第三方面的第二种可能的实施方式或第三方面的第三种可能的实施方式或第三方面的第四种可能的实施方式或第三方面的第五种可能的实施方式中,在第三方面的第七种可能的实施方式中,
所述处理器,还用于控制所述收发器接收所述eNB反馈的非确认NACK信息,所述NACK信息是所述eNB成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时发送的;
或,
所述处理器,还用于控制所述收发器接收所述eNB反馈的上行调度授权UL Grant,所述UL Grant是所述eNB成功接收到所述SR但未成功接收到与所 述SR对应的所述上行数据时发送的;控制所述收发器根据所述UL Grant重新发送所述上行数据。
第四方面,本发明实施例提供了一种演进型基站,所述基站包括:处理器、存储器和收发器,其中所述存储器用于存储一个或者一个以上的指令,所述指令被配置成由所述处理器执行;
所述处理器,用于为多个用户设备UE配置上行竞争资源,所述上行竞争资源包括用于传输上行调度请求SR的SR符号和用于传输上行数据的共享符号;
所述处理器,还用于控制所述收发器通过所述上行竞争资源中的所述SR符号接收所述SR;
所述处理器,还用于控制所述收发器通过所述上行竞争资源中的所述共享符号接收所述上行数据。在第四方面的第一种可能的实施方式中,所述处理器,用于:
在所述上行竞争资源的所述SR符号上,控制所述收发器通过与每个所述UE对应的码道接收所述SR。
结合第四方面的第一种可能的实施方式,在第四方面的第二种可能的实施方式中,所述处理器,还用于为所述UE分配对应的码道索引;
所述处理器,还用于根据预存的第一对应关系,查找出与每个所述码道索引对应的第一循环移位值和第一时域正交码;
所述处理器,还用于根据所述第一循环移位值和所述第一时域正交码,检测所述SR符号上与所述码道索引对应的码道上的信号能量是否达到预定阈值;
所述处理器,还用于若达到所述预定阈值,则确定接收到与所述码道索引对应的UE发送的所述SR。
在第四方面的第三种可能的实施方式中,
所述处理器,还用于在所述上行竞争资源中的所述共享符号上,控制所述收发器接收以多用户多入多出MU-MIMO方式发送的所述上行数据。
结合第四方面的第三种可能的实施方式,在第四方面的第四种可能的实施方式中,所述共享符号包括:用于传输解调参考信号DM-RS的参考符号和用于传输所述上行数据的数据符号;
所述处理器,还用于为所述UE分配对应的码道索引;
所述处理器,还用于对于成功接收到的每个所述SR,确定所述SR对应的所述码道索引;
所述处理器,还用于根据预存的第二对应关系,查找出与所述码道索引对应的导频索引,和与所述导频索引对应的第二循环移位值和第二时域正交码;
所述处理器,还用于根据所述第二循环移位值和所述第二时域正交码对所述上行竞争资源的所述参考符号中承载的解调参考信号DM-RS进行信道估计,得到信道估计结果;
所述处理器,还用于根据所述信道估计结果,对所述上行竞争资源中的所述数据符号进行多用户多入多出MU-MIMO译码得到所述上行数据。
结合第四方面的第四种可能的实施方式,在第四方面的第五种可能的实施方式中,所述上行数据包括:调制编码策略MCS和本次传输的数据;
所述处理器,还用于根据所述MCS对所述本次传输的数据进行解调和信道解码。
结合第四方面或第四方面的第一种可能的实施方式或第四方面的第二种可能的实施方式或第四方面的第三种可能的实施方式或第四方面的第四种可能的实施方式或第四方面的第五种可能的实施方式中,在第四方面的第六种可能的实施方式中,
所述处理器,还用于为所述UE分配对应的UE标识;
所述处理器,还用于对于每个UE,控制所述收发器根据UE标识在物理下行控制信道PDCCH发送下行控制信息DCI;
其中,所述DCI采用包括有扩展字段的DCI格式format0,所述DCI format0的原有字段包含:所述上行竞争资源所占用的资源块的起始位置和数量,所述上行竞争资源的所述共享符号对应的符号信息;所述扩展字段包括用于指示SR符号的符号信息;或,所述DCI采用DCI formatCA,所述DCI formatCA包括:所述上行竞争资源所占用的资源块的起始位置和数量,所述SR符号的符号信息,和所述共享符号对应的符号信息。
结合第四方面或第四方面的第一种可能的实施方式或第四方面的第二种可能的实施方式或第四方面的第三种可能的实施方式或第四方面的第四种可能的实施方式或第五种可能的实施方式中,在第四方面的第七种可能的实施方式中,
所述处理器,还用于在成功接收到所述SR但未成功接收到与所述SR对 应的所述上行数据时,生成非确认NACK信息;所述处理器,还用于控制所述收发器向所述SR对应的所述UE发送所述NACK信息;
或,
所述处理器,还用于在成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时,为所述SR对应的UE生成上行调度授权UL Grant;所述处理器,还用于控制所述收发器向所述SR对应的UE发送所述UL Grant。
第五方面,本发明实施例提供了一种上行数据发送和接收系统,该上行数据发送和接收系统包括:eNB和UE;
所述UE包括第一方面和第一方面的各种可能实施方式中任一所提供的上行数据发送装置,或,所述UE是第三方面和第三方面的各种可能实施方式中任一提供的UE;
所述eNB包括第二方面和第二方面的各种可能实施方式中任一所提供的上行数据接收装置,或,所述eNB是第四方面和第四方面的各种可能实施方式中任一提供的eNB。
第六方面,本发明实施例提供了一种上行数据发送方法,所述方法包括:
确定上行竞争资源,所述上行竞争资源包括用于传输上行调度请求SR的SR符号和用于传输上行数据的共享符号;
通过所述上行竞争资源中的所述SR符号发送所述SR;
通过所述上行竞争资源中的所述共享符号发送所述上行数据。
在第六方面的第一种可能的实施方式中,所述通过所述上行竞争资源中的所述SR符号发送所述SR,包括:
在所述上行竞争资源中的所述SR符号上,通过与本UE对应的码道发送所述SR。
结合第六方面的第一种可能的实施方式,在第六方面的第二种可能的实施方式中,所述在所述上行竞争资源中的所述SR符号上,通过与本UE对应的码道发送所述SR之前,还包括:
确定所述eNB分配的码道索引;
所述在所述上行竞争资源中的所述SR符号上,通过与本UE对应的码道发送所述SR,包括:
根据预存的第一对应关系,查找出与所述码道索引对应的第一循环移位值和第一时域正交码;
将预定的基序列经过所述第一循环移位值和所述第一时域正交码的处理,生成所述SR;
将所述SR承载在所述上行竞争资源中的所述SR符号上进行发送。
在第六方面的第三种可能的实施方式中,所述通过所述上行竞争资源中的所述共享符号发送所述上行数据,包括:
在所述上行竞争资源中的所述共享符号上,以多用户多入多出MU-MIMO方式发送所述上行数据。
结合第六方面的第三种可能的实施方式,在第六方面的第四种可能的实施方式中,所述共享符号包括:用于传输解调参考信号DM-RS的参考符号和用于传输所述上行数据的数据符号;
所述在所述上行竞争资源中的所述共享符号上,以多用户多入多出MU-MIMO方式发送所述上行数据之前,还包括:
确定所述eNB分配的码道索引;
所述在所述上行竞争资源中的所述共享符号上,以多用户多入多出MU-MIMO方式发送所述上行数据,包括:
根据预存的第二对应关系,查找出与所述码道索引对应的导频索引,和与所述导频索引对应的第二循环移位值和第二时域正交码;
将预定的基序列经过所述第二循环移位值和所述第二时域正交码的处理,生成所述DM-RS;
将所述DM-RS承载在所述上行竞争资源中的所述参考符号上进行发送,将所述上行数据承载在所述上行竞争资源中的所述数据符号上进行发送。
结合第六方面的第四种可能的实施方式,在第六方面的第五种可能的实施方式中,所述上行数据包括调制编码策略MCS和本次传输的数据;
所述将所述上行数据承载在所述上行竞争资源中的所述数据符号上进行发送,包括:
将所述MCS和所述本次传输的数据分别承载在所述上行竞争资源中进行复用传输;
其中,所述MCS采用的信道编码码率低于所述本次传输的数据采用的信道编码码率。
结合第六方面或第六方面的第一种可能的实施方式或第六方面的第二种可能的实施方式或第六方面的第三种可能的实施方式或第六方面的第四种可 能的实施方式或第六方面的第五种可能的实施方式,在第六方面的第六种可能的实施方式中,所述确定上行竞争资源,包括:
获取所述eNB分配的UE标识,所述UE标识包括竞争接入小区无线网络临时标识CA-RNTI或半静态调度竞争接入小区无线网络临时标识SPS-CA-RNTI;
根据所述UE标识从物理下行控制信道PDCCH接收下行控制信息DCI;
从所述DCI中确定所述eNB配置的上行竞争资源;
其中,所述DCI采用包括有扩展字段的DCI格式format0,所述DCI format0的原有字段包含:所述上行竞争资源所占用的资源块的起始位置和数量,所述上行竞争资源的所述共享符号对应的符号信息;所述扩展字段包括用于指示SR符号的符号信息;或,所述DCI采用DCI formatCA,所述DCI formatCA包括:所述上行竞争资源所占用的资源块的起始位置和数量,所述SR符号的符号信息和所述共享符号对应的符号信息。
结合第六方面或第六方面的第一种可能的实施方式或第六方面的第二种可能的实施方式或第六方面的第三种可能的实施方式或第六方面的第四种可能的实施方式或第六方面的第五种可能的实施方式中,在第六方面的第七种可能的实施方式中,所述通过所述上行竞争资源中的所述共享符号发送所述上行数据之后,还包括:
接收所述eNB反馈的非确认NACK信息,所述NACK信息是所述eNB成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时发送的;
或,
接收所述eNB反馈的上行调度授权UL Grant,所述UL Grant是所述eNB成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时发送的;根据所述UL Grant重新发送所述上行数据。
第七方面,本发明实施例提供了一种上行数据发送方法,所述方法包括:
为多个用户设备UE配置上行竞争资源,所述上行竞争资源包括用于传输上行调度请求SR的SR符号和用于传输上行数据的共享符号;
通过所述上行竞争资源中的所述SR符号接收所述SR;
通过所述上行竞争资源中的所述共享符号接收所述上行数据。
在第七方面的第一种可能的实施方式中,所述通过所述上行竞争资源中的所述SR符号接收所述SR,包括:
在所述上行竞争资源的所述SR符号上,通过与每个所述UE对应的码道接收所述SR。
结合第七方面的第一种可能的实施方式,在第七方面的第二种可能的实施方式中,所述在所述上行竞争资源的所述SR符号上,通过与每个所述UE对应的码道接收所述SR之前,还包括:
为所述UE分配对应的码道索引;
所述在所述上行竞争资源的所述SR符号上,通过与每个所述UE对应的码道接收所述SR,包括:
根据预存的第一对应关系,查找出与每个所述码道索引对应的第一循环移位值和第一时域正交码;
根据所述第一循环移位值和所述第一时域正交码,检测所述SR符号上与所述码道索引对应的码道上的信号能量是否达到预定阈值;
若达到所述预定阈值,则确定接收到与所述码道索引对应的UE发送的所述SR。
在第七方面的第三种可能的实施方式中,所述通过所述上行竞争资源中的所述共享符号接收所述上行数据,包括:
在所述上行竞争资源中的所述共享符号上,接收以多用户多入多出MU-MIMO方式发送的所述上行数据。
结合第七方面的第三种可能的实施方式,在第七方面的第四种可能的实施方式中,所述共享符号包括:用于传输解调参考信号DM-RS的参考符号和用于传输所述上行数据的数据符号;
所述在所述上行竞争资源中的所述共享符号上,接收以MU-MIMO方式发送的所述上行数据之前,还包括:
为所述UE分配对应的码道索引;
所述在所述上行竞争资源中的所述共享符号上,接收以MU-MIMO方式发送的所述上行数据,包括:
对于成功接收到的每个所述SR,确定所述SR对应的所述码道索引;
根据预存的第二对应关系,查找出与所述码道索引对应的导频索引,和与所述导频索引对应的第二循环移位值和第二时域正交码;
根据所述第二循环移位值和所述第二时域正交码对所述上行竞争资源的所述参考符号中承载的解调参考信号DM-RS进行信道估计,得到信道估计结 果;
根据所述信道估计结果,对所述上行竞争资源中的所述数据符号进行多用户多入多出MU-MIMO译码得到所述上行数据。
结合第七方面的第四种可能的实施方式,在第七方面的第五种可能的实施方式中,所述上行数据包括:调制编码策略MCS和本次传输的数据;
所述根据所述信道估计结果,对所述上行竞争资源中的所述数据符号进行多用户多入多出MU-MIMO译码得到所述上行数据之后,还包括:
根据所述MCS对所述本次传输的数据进行解调和信道解码。
结合第七方面或第七方面的第一种可能的实施方式或第七方面的第二种可能的实施方式或第七方面的第三种可能的实施方式或第七方面的第四种可能的实施方式或第七方面的第五种可能的实施方式中,在第七方面的第六种可能的实施方式中,所述为多个用户设备UE配置上行竞争资源,包括:
为所述UE分配对应的UE标识;
对于每个UE,根据UE标识在物理下行控制信道PDCCH发送下行控制信息DCI;
其中,所述DCI采用包括有扩展字段的DCI格式format0,所述DCI format0的原有字段包含:所述上行竞争资源所占用的资源块的起始位置和数量,所述上行竞争资源的所述共享符号对应的符号信息;所述扩展字段包括用于指示SR符号的符号信息;或,所述DCI采用DCI formatCA,所述DCI formatCA包括:所述上行竞争资源所占用的资源块的起始位置和数量,所述SR符号的符号信息,和所述共享符号对应的符号信息。
结合第七方面或第七方面的第一种可能的实施方式或第七方面的第二种可能的实施方式或第七方面的第三种可能的实施方式或第七方面的第四种可能的实施方式或第五种可能的实施方式中,在第七方面的第七种可能的实施方式中,所述通过所述上行竞争资源中的所述共享符号接收所述上行数据之后,还包括:
在成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时,生成非确认NACK信息;向所述SR对应的所述UE发送所述NACK信息;
或,
在成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时,为所述SR对应的UE生成上行调度授权UL Grant;向所述SR对应的UE发送 所述UL Grant。
本发明实施例提供的技术方案的有益效果是:
通过eNB向多个UE配置相同的上行竞争资源;该上行竞争资源包括用于传输SR的SR符号和用于传输上行数据的共享符号;UE通过上行竞争资源中的SR符号向eNB发送SR;通过上行竞争资源中的共享符号向eNB发送上行数据;eNB通过上行竞争资源中的SR符号接收UE的SR;以及通过上行竞争资源中的共享符号接收UE的上行数据;解决了在现有技术中多个UE使用相同的上行竞争资源向eNB发送上行数据且产生竞争冲突时,eNB可能会对各个UE发送的上行数据解码失败的问题;达到了提供一种新的基于竞争的上行数据传输方式,该上行数据传输方式在eNB未成功接收到UE的上行数据时,依然可以根据成功接收到的SR确定哪些UE发送了上行数据。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本发明一实施例提供的上行数据发送装置的框图;
图2是本发明另一实施例提供的上行数据发送装置的框图;
图3是本发明一实施例提供的上行数据接收装置的框图;
图4是本发明另一实施例提供的上行数据接收装置的框图;
图5是本发明一实施例提供的用户设备的结构方框图;
图6是本发明另一实施例提供的基站的结构方框图;
图7是本发明一个实施例提供的上行数据发送和接收系统的框图;
图8是本发明一个实施例提供的上行数据发送方法的流程图;
图9A和图9B是本发明另一实施例提供的上行竞争资源的帧结构示意图;
图10是本发明另一实施例提供的上行数据发送方法的流程图;
图11是本发明另一实施例提供的MCS和本次传输的数据进行复用传输时的帧结构示意图;
图12是本发明另一实施例提供的上行数据发送方法的流程图;
图13是本发明另一实施例提供的上行数据发送方法的流程图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚,下面将结合附图对本发明实施方式作进一步地详细描述。
子帧:在时域上,LTE传输被组织成长度为10ms的无线帧,每个无线帧被分成10个相同大小长度为1ms的子帧,每个子帧包含两个同样大小的时隙,每个时隙由包括循环前缀在内的一定数量的正交频分复用技术(英文:Orthogonal Frequency Division Multiplexing,简称:OFDM)符号组成,若是常规循环前缀,则每个时隙包括7个OFDM符号;若是扩展循环前缀,则每个时隙包括6个OFDM符号,以下简称为符号。
请参考图1,其示出了本发明一个实施例提供的上行数据发送装置的框图。该上行数据发送装置可以通过软件、硬件或者两者的结合实现成为UE的全部或者一部分。该上行数据装置可以包括:确定模块110和发送模块120。
确定模块110,用于确定上行竞争资源,该上行竞争资源包括用于传输SR的SR符号和用于传输上行数据的共享符号。
多个UE可以共用同一个上行竞争资源,以基于竞争的方式向eNB发送上行数据。
在本发明实施例中,将上行竞争资源中的一部分符号,划分为用于传输SR的SR符号;将上行竞争资源中的另一部分符号,划分为用于传输上行数据的共享符号。其中,SR用于向eNB指示本UE存在发送上行数据的需求。
发送模块120,用于通过上行竞争资源中的SR符号发送SR。
该发送模块120,用于通过上行竞争资源中的共享符号发送上行数据。
综上所述,本实施例提供的上行数据发送装置,UE首先通过确认上行竞争资源,通过上行竞争资源中的SR符号向eNB发送SR,以及通过上行竞争资源中的共享符号向eNB发送上行数据;解决了在现有技术中多个UE使用相同的上行竞争资源向eNB发送上行数据且产生竞争冲突时,eNB可能会对各个UE发送的上行数据全部解码失败,导致该上行竞争资源完全被浪费的问题;达到了提供一种新的基于竞争的上行数据传输方式,该上行数据传输方式在eNB未成功接收到UE的上行数据时,依然可以根据成功接收到的SR确定哪些UE发送了上行数据,使得该上行竞争资源不会被浪费。
请参考图2,其示出了本发明另一实施例提供的上行数据发送装置的框图。该上行数据发送装置可以通过软件、硬件或者两者的结合实现成为UE的全部或者一部分。该上行数据发送装置可以包括:确定模块110、发送模块120和接收模块130。
确定模块110,用于确定上行竞争资源,该上行竞争资源包括用于传输上行SR的SR符号和用于传输上行数据的共享符号。
确定模块110,还用于获取eNB分配的UE标识。
确定模块110,用于根据UE标识从物理下行控制信道(英文:Physical Downlink Control Channel,简称:PDCCH)接收DCI(Downlink Control Information,下行控制信息)。该DCI只有具有该UE标识的UE才能解扰成功。
确定模块110,还用于从DCI中确定eNB配置的上行竞争资源。
确定模块110,还用于确定eNB分配的码道索引。
发送模块120,用于在上行竞争资源中的SR符号上,通过与UE对应的码道发送SR。
在本实施例中,确定模块110还用于根据预存的第一对应关系,查找出与码道索引对应的第一循环移位值和第一时域正交码。确定模块110还用于将预定的基序列经过第一循环移位值和第一时域正交码的处理,生成SR。
发送模块120,用于将SR承载在上行竞争资源中的SR符号上进行发送。
发送模块120,用于在上行竞争资源中的共享符号上,以多用户多入多出(英文:MuLtiple User-Multiple Input Multiple Output,简称:MU-MIMO)方式发送上行数据。
确定模块110,还用于根据预存的第二对应关系,查找出与码道索引对应的导频索引,和与导频索引对应的第二循环移位值和第二时域正交码。确定模块110还用于将预定的基序列经过第二循环移位值和第二时域正交码的处理,生成解调参考信号(英文:Demodulation Reference Signal,简称:DM-RS)。
发送模块120,用于将DM-RS承载在上行竞争资源中的参考符号上进行发送。
发送模块120,用于将上行数据承载在上行竞争资源中的数据符号上进行发送。
该上行数据包括调制编码策略(英文:Modulation and Coding Scheme,简 称:MCS)和本次传输的数据。
发送模块120,还用于将MCS和本次传输的数据分别承载在上行竞争资源中进行复用传输。其中,MCS采用的信道编码码率低于本次传输的数据采用的信道编码码率。
接收模块130,用于接收eNB反馈的非确认(英文:Nacknowledge,简称:NACK)信息,NACK信息是eNB成功接收到SR但未成功接收到与SR对应的上行数据时发送的。
或,接收模块130,用于接收eNB反馈的UL Grant,UL Grant是eNB成功接收到SR但未成功接收到与SR对应的上行数据时发送的。发送模块120,用于根据UL Grant重新发送上行数据。
与上一实施例相比,本实施例提供的上行数据发送装置,通过UE接收eNB下发的确认(英文:Acknowledge,简称:ACK)信息或NACK信息,使得即便UE以竞争方式传输上行数据失败,也能够得到eNB侧的反馈,进而决定是继续传输其它上行数据或者重新传输本次的上行数据,提高了eNB和UE之间的通信效率。
与上一实施例相比,本实施例提供的上行数据发送装置,还通过UE接收eNB下发的UL grant,使得UE可以以基于调度的方式重传上行数据,有效减少了UE和eNB之间的信令交互,节省了eNB一侧的信令资源。
请参考图3,其示出了本发明一实施例提供的上行数据接收装置的框图。该上行数据接收装置可以通过软件、硬件或者两者的结合实现成为eNB的全部或部分。该上行数据接收装置可以包括:配置模块310和接收模块320。
配置模块310,用于为多个UE配置上行竞争资源,上行竞争资源包括用于传输SR的SR符号和用于传输上行数据的共享符号。
接收模块320,用于通过上行竞争资源中的SR符号接收SR。
接收模块320,还用于通过上行竞争资源中的共享符号接收上行数据。
综上所述,本实施例提供的上行数据发送装置,eNB为多个用户设备UE配置上行竞争资源,通过上行竞争资源中的SR符号接收UE发送的SR,以及通过上行竞争资源中的共享符号接收UE发送的上行数据;解决了在现有技术中多个UE使用相同的上行竞争资源向eNB发送上行数据且产生竞争冲突时,eNB可能会对各个UE发送的上行数据全部解码失败,导致该上行竞争资源完 全被浪费的问题;达到了提供一种新的基于竞争的上行数据传输方式,该上行数据传输方式在eNB未成功接收到UE的上行数据时,依然可以根据成功接收到的SR确定哪些UE发送了上行数据,使得该上行竞争资源不会被浪费。
请参考图4,其示出了本发明另一实施例提供的上行数据接收装置的框图。该上行数据接收装置可以通过软件、硬件或者两者的结合实现成为eNB的全部或部分。该上行数据接收装置可以包括:配置模块310、接收模块320、处理模块330和发送模块340。
配置模块310,用于为多个用户设备UE配置上行竞争资源,上行竞争资源包括用于传输SR的SR符号和用于传输上行数据的共享符号。
配置模块310,还用于为UE分配对应的UE标识。
当存在多个UE时,为多个UE分配各自对应的UE的标识。
可选地,UE标识包括:
竞争接入小区无线网络临时标识(英文:Contention Access-Radio Network Temporary Identity,简称:CA-RNTI)。或,
半静态调度竞争接入小区无线网络临时标识(英文:Semi-Persistent-Scheduling-Contention Access-Radio Network Temporary Identity,简称:SPS-CA-RNTI)。
配置模块310,用于对于每个UE,根据UE标识在PDCCH发送DCI。
可选地,DCI的信息格式采用:包括有扩展字段的DCI format0,或者,新定义的DCI format CA。
DCI format0的原有字段包含:上行竞争资源所占用的资源块(英文:Resource Block,简称:RB)的起始位置和数量,上行竞争资源的共享符号对应的符号信息;扩展字段的DCI格式format0包括用于指示SR符号的符号信息,也即,扩展字段携带有SR符号的符号信息可选为:SR符号数或SR符号位置等。SR符号数用于指示上行竞争资源中SR占用的符号个数;SR符号位置用于指示SR符号在上行竞争资源中的符号位置。
DCI formatCA是重新设计的一种DCI格式,DCI formatCA中包括:所述上行竞争资源所占用的RB的起始位置和数量,SR符号的符号信息和共享符号对应的符号信息。示例性的,DCI formatCA包括:RB分配、SR符号数、SR符号位置和导频组号。RB分配用于指示上行竞争资源在频域上所占用RB位 置,SR符号数用于指示上行竞争资源SR占用的符号个数;SR符号位置用于指示SR符号在上行竞争资源中的符号位置。
配置模块310,用于为UE分配对应的码道索引。
当存在多个UE时,为多个UE分配各自对应的码道索引。
接收模块320,用于在上行竞争资源的SR符号上,通过与每个UE对应的码道接收SR。
在本实施例中,装置还包括处理模块330。
处理模块330,用于根据预存的第一对应关系,查找出与每个码道索引对应的第一循环移位值和第一时域正交码。
处理模块330,用于根据第一循环移位值和第一时域正交码,检测SR符号上与码道索引对应的码道上的信号能量是否达到预定阈值。
处理模块330,用于在达到预定阈值时,确定接收到与码道索引对应的UE发送的SR。
处理模块330,用于在上行竞争资源中的共享符号上,接收以MU-MIMO方式发送的上行数据。
处理模块330,用于对于成功接收到的每个SR,确定SR对应的码道索引。
处理模块330,用于根据预存的第二对应关系,查找出与码道索引对应的导频索引,和与导频索引对应的第二循环移位值和第二时域正交码。
处理模块330,用于根据第二循环移位值和第二时域正交码对上行竞争资源的参考符号中承载的DM-RS进行信道估计,得到信道估计结果。
处理模块330,用于根据信道估计结果,对上行竞争资源中的数据符号进行MU-MIMO译码得到上行数据。
需要说明的是,若上行数据包括了MCS和本次传输的数据,则处理模块330还用于eNB在译码得到上行数据之后,根据MCS对本次传输的数据进行解调和信道解码。
处理模块330,用于在成功接收到SR但未成功接收到与该SR对应的上行数据时,生成NACK信息。发送模块340,用于向该SR对应的UE发送NACK信息。
或,处理模块330,用于在成功接收到SR但未成功接收到与该SR对应的上行数据时,为SR对应的UE生成UL Grant。发送模块340,用于向该SR对应的UE发送UL Grant。
与上一实施例相比,本实施例提供的上行数据发送装置,通过eNB向UE下发ACK信息或NACK信息,使得即便UE以竞争方式传输上行数据失败,也能够得到eNB侧的反馈,进而决定是继续传输其它上行数据或者重新传输本次的上行数据,提高了eNB和UE之间的通信效率。
与上一实施例相比,本实施例提供的上行数据发送装置,还本实施例中通过eNB向上行数据传输失败的UE直接下发UL grant,使得UE可以以基于调度的方式重传上行数据,有效减少了UE和eNB之间的信令交互,节省了eNB一侧的信令资源。
需要说明的是,上述实施例提供的上行数据发送装置和上行数据接收装置在发送上行数据和接收上行数据时,仅以上述各功能模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能模块完成,即将设备的内部结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。上述接收模块可以由处理器控制收发器来实现;上述发送模块可以由处理器控制收发器来实现;上述确定模块、配置模块和处理模块可以由处理器执行存储器中存储的指令来实现。
请参考图5,其示出了本发明一个实施例提供的UE的结构方框图。如图5所示,UE500包括:总线510,以及通过总线510通信的处理器520、存储器530和收发器540。其中,存储器530用于存储一个或者一个以上的指令,该指令被配置成由处理器520执行。其中:
处理器520,用于确定上行竞争资源,上行竞争资源包括用于传输上行SR的SR符号和用于传输上行数据的共享符号。
处理器520,还用于控制收发器540通过上行竞争资源中的SR符号发送SR。
处理器520,还用于控制收发器540通过上行竞争资源中的共享符号发送上行数据。
综上所述,本实施例提供的UE,通过确定上行竞争资源,控制收发器通过上行竞争资源中的SR符号发送SR,并控制收发器通过上行竞争资源中的共享符号发送上行数据;解决了在现有技术中多个UE使用相同的上行竞争资源向eNB发送上行数据且产生竞争冲突时,eNB可能会对各个UE发送的上行数 据全部解码失败,导致该上行竞争资源完全被浪费的问题;达到了提供一种新的基于竞争的上行数据传输方式,该上行数据传输方式在eNB未成功接收到UE的上行数据时,依然可以根据成功接收到的SR确定哪些UE发送了上行数据。
在基于图5所示的实施例提供的可选实施例中,处理器520,用于:
在上行竞争资源中的SR符号上,控制收发器540通过与本UE对应的码道发送SR。
在基于图5所示的实施例提供的可选实施例中,
处理器520,还用于确定所述eNB分配的码道索引。
处理器520,用于根据预存的第一对应关系,查找出与码道索引对应的第一循环移位值和第一时域正交码;
处理器520,用于将预定的基序列经过第一循环移位值和第一时域正交码的处理,生成SR;
处理器520,用于控制收发器540将SR承载在上行竞争资源中的SR符号上进行发送。
在基于图5所示的实施例提供的可选实施例中,处理器520,用于在上行竞争资源中的共享符号上,控制收发器540以多用户多入多出MU-MIMO方式发送上行数据。
在基于图5所示的实施例提供的可选实施例中,
共享符号包括:用于传输DM-RS的参考符号和用于传输所述上行数据的数据符号;
处理器520,还用于确定所述eNB分配的码道索引;
处理器520,用于根据预存的第二对应关系,查找出与码道索引对应的导频索引,和与导频索引对应的第二循环移位值和第二时域正交码;
处理器520,用于将预定的基序列经过第二循环移位值和第二时域正交码的处理,生成DM-RS;
处理器520,用于控制收发器540将DM-RS承载在上行竞争资源中的参考符号上进行发送,将上行数据承载在上行竞争资源中的数据符号上进行发送。
在基于图5所示的实施例提供的可选实施例中,所述上行数据包括MCS和本次传输的数据;
处理器520,用于将所述MCS和所述本次传输的数据分别承载在所述上行竞争资源中进行复用传输;
其中,所述MCS采用的信道编码码率低于所述本次传输的数据采用的信道编码码率。
在基于图5所示的实施例提供的可选实施例中,处理器520,用于获取所述eNB分配的UE标识,所述UE标识包括CA-RNTI或SPS-CA-RNTI;处理器520,用于控制所述收发器540根据所述UE标识从PDCCH接收下行控制信息DCI。处理器520,还用于从所述DCI中确定所述eNB配置的上行竞争资源;
其中,所述DCI采用包括有扩展字段的DCI格式format0,所述DCI format0的原有字段包含:所述上行竞争资源所占用的RB的起始位置和数量,所述上行竞争资源的所述共享符号对应的符号信息;所述扩展字段包括用于指示SR符号的符号信息;或,所述DCI采用DCI formatCA,所述DCI formatCA包括:所述上行竞争资源所占用的RB的起始位置和数量,所述SR符号的符号信息和所述共享符号对应的符号信息。
在基于图5所示的实施例提供的可选实施例中,
处理器520,还用于控制所述收发器540接收所述eNB反馈的NACK信息,所述NACK信息是所述eNB成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时发送的;
或,
处理器520,还用于控制所述收发器540接收所述eNB反馈的UL Grant,所述UL Grant是所述eNB成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时发送的;处理器520,用于控制所述收发器540根据所述UL Grant重新发送所述上行数据。
请参考图6,其示出了本发明一个实施例提供的eNB的结构方框图。如图6所示,eNB600包括:总线610,以及通过总线610通信的处理器620、存储器630和收发器640。其中,存储器630用于存储一个或者一个以上的指令,该指令被配置成由处理器620执行。其中:
处理器620,用于为多个用户设备UE配置上行竞争资源,所述上行竞争资源包括用于传输上行SR的SR符号和用于传输上行数据的共享符号;
处理器620,还用于控制所述收发器640通过所述上行竞争资源中的所述SR符号接收所述SR;
处理器620,还用于控制所述收发器640通过所述上行竞争资源中的所述共享符号接收所述上行数据。
综上所述,本实施例提供的eNB,通过为多个用户设备UE配置上行竞争资源,控制所述收发器通过所述上行竞争资源中的所述SR符号接收所述SR,并控制所述收发器通过所述上行竞争资源中的所述共享符号接收所述上行数据;解决了在现有技术中多个UE使用相同的上行竞争资源向eNB发送上行数据且产生竞争冲突时,eNB可能会对各个UE发送的上行数据全部解码失败,导致该上行竞争资源完全被浪费的问题;达到了提供一种新的基于竞争的上行数据传输方式,该上行数据传输方式在eNB未成功接收到UE的上行数据时,依然可以根据成功接收到的SR确定哪些UE发送了上行数据。
在基于图6所示实施例提供的可选实施例中,所述处理器620,用于在所述上行竞争资源的所述SR符号上,控制所述收发器640通过与每个所述UE对应的码道接收所述SR。
在基于图6所示实施例提供的可选实施例中,
处理器620,还用于为所述UE分配对应的码道索引;
处理器620,还用于根据预存的第一对应关系,查找出与每个所述码道索引对应的第一循环移位值和第一时域正交码;
处理器520,用于根据所述第一循环移位值和所述第一时域正交码,检测所述SR符号上与所述码道索引对应的码道上的信号能量是否达到预定阈值;
处理器520,用于若达到所述预定阈值,则确定接收到与所述码道索引对应的UE发送的所述SR。
在基于图6所示实施例提供的可选实施例中,所述处理器620,用于在所述上行竞争资源中的所述共享符号上,控制所述收发器640接收以MU-MIMO方式发送的所述上行数据。
在基于图6所示实施例提供的可选实施例中,所述共享符号包括:用于传输DM-RS的参考符号和用于传输所述上行数据的数据符号;
所述处理器620,还用于为所述UE分配对应的码道索引;
所述处理器620,用于对于成功接收到的每个所述SR,确定所述SR对应的所述码道索引;
所述处理器620,用于根据预存的第二对应关系,查找出与所述码道索引对应的导频索引,和与所述导频索引对应的第二循环移位值和第二时域正交码;
所述处理器620,用于根据所述第二循环移位值和所述第二时域正交码对所述上行竞争资源的所述参考符号中承载的DM-RS进行信道估计,得到信道估计结果;
所述处理器620,用于根据所述信道估计结果,对所述上行竞争资源中的所述数据符号进行MU-MIMO译码得到所述上行数据。
在基于图6所示实施例提供的可选实施例中,所述上行数据包括:MCS和本次传输的数据;
所述处理器620,用于根据所述MCS对所述本次传输的数据进行解调和信道解码。
在基于图6所示实施例提供的可选实施例中,所述处理器620,用于为所述UE分配对应的UE标识;
所述处理器620,用于对于每个UE,控制所述收发器640根据UE标识在PDCCH发送下行控制信息DCI;
其中,所述DCI采用包括有扩展字段的DCI格式format0,所述DCI format0的原有字段包含:所述上行竞争资源所占用的RB的起始位置和数量,所述上行竞争资源的所述共享符号对应的符号信息;所述扩展字段包括用于指示SR符号的符号信息;或,所述DCI采用DCI formatCA,所述DCI formatCA包括:所述上行竞争资源所占用的RB的起始位置和数量,所述SR符号的符号信息,和所述共享符号对应的符号信息。
在基于图6所示实施例提供的可选实施例中,
所述处理器620,还用于在成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时,生成NACK信息;所述处理器620,用于控制所述收发器640向所述SR对应的所述UE发送所述NACK信息;
或,
所述处理器620,还用于在成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时,为所述SR对应的UE生成UL Grant;所述处理器620,用于控制所述收发器640向所述SR对应的UE发送所述UL Grant。
请参考图7,其示出了本发明一个实施例提供的上行数据发送和接收系统的框图。该上行数据发送和接收系统包括:eNB710和UE720;
UE720包括图1实施例和图2实施例中任一所提供的上行数据发送装置,或,UE720是图5实施例中提供的一种UE。
eNB710包括图3实施例和图4实施例中任一所提供的上行数据接收装置,或,eNB710是图6实施例中提供的一种eNB。
请参考图8,其示出了本发明一个实施例提供的上行数据发送方法的流程图。该上行数据发送方法包括:
步骤801,eNB向多个UE配置上行竞争资源,该上行竞争资源包括用于传输SR的SR符号和用于传输上行数据的共享符号。
上行竞争资源:在PUSCH信道上的时域资源。上行竞争资源在时域上等于一个子帧的长度,也即,包括两个同样大小的时隙。若每个时隙包括常规循环前缀,则上行共享资源共包括2*7=14个符号;若每个时隙包括扩展循环前缀,则上行共享资源包括2*6=12个符号,该符号包括用于传输上行SR的SR符号和用于传输上行数据的共享符号。在频域上,上行竞争资源包括至少一个RB。
多个UE可以共用同一个上行竞争资源,以基于竞争的发送方式向eNB发送上行数据。
在本发明实施例中,将上行竞争资源中的一部分符号,划分为用于传输SR的SR符号;将上行竞争资源中的另一部分符号,划分为用于传输上行数据的共享符号。
其中,SR用于向eNB指示本UE存在发送上行数据的需求。
步骤802,UE确定上行竞争资源,该上行竞争资源包括用于传输SR的SR符号和用于传输上行数据的共享符号。
具体地,UE接收eNB发送的有关上行共享资源的配置信息,根据接收到的配置信息确定UE的上行共享资源。
在其它实施例中,若eNB和UE事先约定了上行共享资源的配置方式,UE可以自行根据事先约定的配置方式确定上行共享资源。
UE在接收到eNB对上行竞争资源的配置信息后,从配置信息中确定上行竞争资源。
步骤803,UE通过上行竞争资源中的SR符号向eNB发送SR,通过上行竞争资源中的共享符号向eNB发送上行数据。
若UE需要发送上行数据,则UE在同一个上行竞争资源中同时发送SR和上行数据。若存在多个UE需要发送上行数据,则多个UE在同一个上行竞争资源中发送各自的SR和上行数据。
步骤804,eNB通过上行竞争资源中的SR符号接收UE的SR,以及通过上行竞争资源中的共享符号接收UE的上行数据。
综上所述,本实施例提供的上行数据发送方法,UE通过上行竞争资源中的SR符号向eNB发送SR,以及通过上行竞争资源中的共享符号向eNB发送上行数据;eNB通过上行竞争资源中的SR符号接收UE的SR;以及通过上行竞争资源中的共享符号接收UE的上行数据;解决了在现有技术中多个UE使用相同的上行竞争资源向eNB发送上行数据且产生竞争冲突时,eNB可能会对各个UE发送的上行数据全部解码失败,导致该上行竞争资源完全被浪费的问题;达到了提供一种新的基于竞争的上行数据传输方式,该上行数据传输方式在eNB未成功接收到UE的上行数据时,依然可以根据成功接收到的SR确定哪些UE发送了上行数据。
需要说明的是,图8实施例中有关UE侧的步骤可以单独实现成为UE一侧的上行数据发送方法,有关eNB侧的步骤可以单独实现成为eNB一侧的上行数据接收方法。
本实施例中eNB向UE配置上行竞争资源,该上行竞争资源包括用于传输SR的SR符号和用于传输上行数据的共享符号。其中,共享符号包括有参考符号和数据符号。其中,参考符号用于传输DM-RS,DM-RS可被eNB用于针对指定UE的信道估计,进而接收该指定UE的上行数据;数据符号则用于传输上行数据。
所以,上行竞争资源中包括:SR符号、参考符号和数据符号三种用途的符号。其中,SR符号在上行竞争资源中的排列方式有两种,可选为连续排列或离散排列,参考符号的排列方式则具有固定性。
请参考图9A和图9B,分别给出了两种不同排列方式下的单个上行竞争资源的帧结构示意图。
图9A是SR符号连续排列的单个上行竞争资源的帧结构示意图。示意性 的,单个上行竞争资源的频域部分占用4个RB,时域部分包含有2个时隙,每个时隙包含7个符号,单个上行竞争资源中包含一共2*7=14个符号。其中,SR符号占用3个符号,并采用连续排列的方式排列在第一个至第三个符号位置;参考符号占用2个符号,分别排列在每个时隙的第四个符号位置,也即图中从左往右的第4个符号和第11个符号;其余的符号为数据符号。
SR符号采用连续排列的方式适用于低速场景,有利于SR的集中发送。
图9B是SR符号离散排列的单个上行竞争资源的帧结构示意图。其中,单个上行竞争资源的频域部分占用4个RB,时域部分包含有2个时隙,每个时隙包含7个符号,单个上行竞争资源中包含一共2*7=14个符号。其中,SR符号占用2个符号,并采用离散排列的方式排列在第2个符号位置和第13个符号位置;参考符号占用2个符号,分别排列在每个时隙的第四个符号位置,也即图中从左往右的第4个符号和第11个符号;其余的符号为数据符号。
SR符号离散排列的方式适用于高速移动场景,有利于利用时间分集对抗多普勒频偏。
上行竞争资源在频域所占用的RB数由eNB同一分配,图9A和图9B中均以4RB举例说明,但本发明实施例对RB数量的大小不做具体限定;SR符号数与单个上行竞争资源上承载的UE数有关,图9A中以3个SR符号举例说明,图9B中以2个SR符号来举例说明,但本发明实施例对SR符号的个数和排列方式不做具体限定。
上述举例是以每个时隙包括7个符号来举例说明,当采用扩展循环前缀时,每个时隙包括6个符号,参考符号排列在每个时隙的第3个符号。相关的SR符号数量和排列方式可以参考图9A和图9B所示,本发明实施例不再赘述。
需要说明的第一点是,各个UE在上行竞争资源中的SR符号上,通过与UE对应的码道发送SR。对应地,eNB在上行竞争资源中的SR符号上,通过与每个UE对应的码道接收SR。
即便存在多个UE在相同的上行竞争资源上发送各自的上行数据,由于每个UE采用码分的方式发送SR,eNB能够接收到各个UE发送的SR。从而,eNB能够知道哪些UE在该上行竞争资源上发送了上行数据。
需要说明的第二点是,各个UE在上行竞争资源中的共享符号上,以 MU-MIMO方式发送上行数据。对应地,eNB在上行竞争资源中的共享符号上,接收UE以MU-MIMO方式发送的上行数据。
在上行传输采用MU-MIMO技术,可以利用各个UE之间的信道不相关性实现多用户并行传输。在上行传输采用MU-MIMO技术的前提是获得每个UE的信道估计,所以每个UE需要使用不同的DM-RS。这样,eNB可以通过每个UE的DM-RS对每个UE进行信道估计,再根据信道估计结果进行MU-MIMO译码,从而成功接收上行数据。
请参考图10,其示出了本发明另一个实施例提供的上行数据发送方法的流程图。该上行数据发送方法包括:
步骤1001,eNB向UE分配对应的码道索引和UE标识,m≥2。
若存在多个UE,则eNB为多个UE分配各自对应的码道索引和各自对应的UE标识。
eNB对处于无线资源控制连接状态(英文:Radio Resource Control-CONNECTED,简称:RRC-CONNECTED)并且上行同步后的UE进行分组。
由于处于RRC-CONNECTED态的UE已经与eNB进行过数据交互,所以eNB已经获知每个UE的单次传输数据包大小、QoS等级和信道信息。eNB可以基于这些信息对UE进行分组,分配至同一组的多个UE被配置相同的上行竞争资源。
比如,eNB将单次传输数据包大小近似相等的UE分配至同一组;又比如,eNB将到达角不同、UE间信道不相关的UE分配至同一组。
eNB通过预定消息向同一组的UE分配对应的码道索引和UE标识。其中,同一组的UE可以有m个,eNB向同一组的m个UE分配各自对应的码道索引和各自对应的UE标识。
预定消息包括但不限于是RRC消息。可选地,对于每个UE,eNB使用同一个RRC消息同时分配码道索引和UE标识;或者,对于每个UE,eNB使用不同的RRC消息分别分配码道索引和UE标识。
可选地,UE标识包括:CA-RNTI和/或SPS-CA-RNTI。
步骤1002,UE获取eNB分配的码道索引和UE标识。
步骤1003,对于每个UE,eNB根据该UE的UE标识在PDCCH发送DCI, 该DCI携带有上行竞争资源的配置信息。
eNB采用动态调度方式或者半静态调度方式向多个UE配置相同的上行竞争资源。动态调度方式是eNB通过一次信令,向UE调度本次使用的时频资源的方式;半静态调度方式是eNB通过一次信令,向UE调度周期性使用的时频资源的方式。
在采用动态调度方式时,对于每个UE,eNB采用UE的CA-RNTI对DCI信息中的循环冗余检查(英文:Cyclic Redundancy Check,简称:CRC)进行加扰,然后将携带有加扰CRC的DCI信息通过PDCCH发送至UE。
在采用半静态调度方式时,对于每个UE,eNB采用UE的SPS-CA-RNTI对DCI信息中的CRC进行加扰,然后将携带有加扰CRC的DCI信息通过PDCCH发送至UE。
可选地,DCI的信息格式采用:包括有扩展字段的DCI format0,或者,新定义的DCI format CA。
DCI format0的原有字段包含:上行竞争资源所占用的RB的起始位置和数量,上行竞争资源的共享符号对应的符号信息;扩展字段的DCI格式format0包括用于指示SR符号的符号信息,也即,扩展字段携带有SR符号的符号信息可选为:SR符号数或SR符号位置等。SR符号数用于指示上行竞争资源中SR占用的符号个数;SR符号位置用于指示SR符号在上行竞争资源中的符号位置。
DCI formatCA是重新设计的一种DCI格式,DCI formatCA中包括:所述上行竞争资源所占用的RB的起始位置和数量,SR符号的符号信息和共享符号对应的符号信息。示例性的,DCI formatCA包括:RB分配、SR符号数、SR符号位置和导频组号。RB分配用于指示上行竞争资源在频域上所占用RB位置,SR符号数用于指示上行竞争资源SR占用的符号个数;SR符号位置用于指示SR符号在上行竞争资源中的符号位置。
也即,DCI formatCA的具体内容包括但不限于如下表格:
Figure PCTCN2015085470-appb-000001
Figure PCTCN2015085470-appb-000002
表一
表一中,RB分配占用的比特数和上行中总RB数有关;SR符号数占用2比特,SR符号位置占用14比特,第i个比特取值为1时,代表上行竞争资源中的第i个符号为SR符号;第i个比特取值为0时,代表上行竞争资源中的第i个符号不是SR符号。
上述RB分配、SR符号数和SR符号位置占用的比特数仅为举例说明,本实施例中对RB分配、SR符号数和SR符号位置占用的比特数不作限定。
可选地,DCI formatCA的具体内容还可能包括其它信息。
比如,在支持跳频技术时,DCI formatCA中还包含有跳频标识,占用1个比特,跳频标识用于指示上行竞争资源的两个时隙中是否跳频。
又比如,在用于生成DM-RS时的导频资源存在多组时,DCI formatCA中还携带有导频组号,占用2个比特,导频组号用于向UE指示本次使用的导频资源所在的组为哪一个组。
步骤1004,UE根据UE标识从PDCCH接收eNB发送的DCI。
UE通过UE标识从PDCCH接收eNB发送的DCI。该DCI只有具有该UE标识的UE才能解扰成功。
UE从DCI中获取eNB配置的上行竞争资源的相关资源配置信息。
在采用动态调度方式时,UE使用CA-RNTI解扰得到DCI信息。
在采用半静态调度方式时,UE使用SPS-CA-RNTI解扰得到DCI信息。
步骤1005,UE根据预存的第一对应关系,查找出与码道索引对应的第一循环移位值和第一时域正交码。
eNB和UE预先都存储有第一对应关系,该第一对应关系是码道索引与第一循环移位值和第一时域正交码之间的对应关系。第一循环移位值和第一时域正交码是UE生成SR时所需要的信息。
第一循环移位值是指对预定的基序列进行循环移位生成SR序列时的循环移位值。该SR序列的长度为:上行竞争资源中的RB数*12。其中,第一循环移位值的范围可选为[0,11],而第一循环移位值的取值间隔由eNB的高层配置,可选为1,2,3。例如,取值间隔配置为2,则第一循环移位值的可用值为12/2=6个。其中,基序列可以是Zadoff-Chu序列,简称ZC序列。
第一时域正交码是指对SR序列进行时域扩展时所采用的正交序列,其中, 第一时域正交码为DFT序列或者walsh序列。可选的,DFT序列的长度为3,walsh序列的长度为4。
长度为3的DFT序列如下表二所示:
序列索引号 正交序列
0 [1 1 1]
1 [1 ej2π/3 ej4π/3]
2 [1 ej4π/3 ej2π/3]
表二
长度为4的walsh序列如下表三所示:
序列索引号 正交序列
0 [+1 +1 +1 +1]
1 [+1 -1 +1 -1]
2 [+1 -1 -1 +1]
3 [+1 +1 -1 -1]
表三
UE通过eNB分配的码道索引查找出对应的第一循环移位值和第一时域正交码。
步骤1006,UE将预定的基序列经过第一循环移位值和第一时域正交码的处理,生成SR。
多个UE可以采用相同的基序列,也可以采用不同的基序列。通常,位于同一小区的UE采用相同的基序列。UE使用哪一个基序列是本领域技术人员所熟知的内容,本实施例不再赘述。
UE通过第一循环移位值将预定的基序列进行循环移位生成为长度为RB数*12的SR序列,然后采用第一时域正交码对SR序列进行时域扩展,生成SR。
步骤1007,UE根据预存的第二对应关系,查找出与码道索引对应的导频索引,和与导频索引对应的第二循环移位值和第二时域正交码。
eNB和UE预先都存储有第二对应关系,该第二对应关系包括:码道索引与导频索引之间的对应关系,以及导频索引与第二循环移位值和第二时域正交码之间的对应关系。第二循环移位值和第二时域正交码是UE生成DM-RS时 所需要的信息。
一个码道索引只与一个导频索引对应,一个导频索引可以与不止一个码道索引对应。比如,码道索引01与导频索引07对应。
一个导频索引与一组第二循环移位值和第二时域正交码对应。如下表四所示:
Figure PCTCN2015085470-appb-000003
表四
其中,导频索引为0至23,第二循环移位值为
Figure PCTCN2015085470-appb-000004
第二时域正交码为[w(λ)(0) w(λ)(1)]。
需要说明的是,为了保证信道估计性能,表四中的导频资源可以分为三组来使用。此时,上表四可以改变为下表五:
Figure PCTCN2015085470-appb-000005
Figure PCTCN2015085470-appb-000006
可选地,eNB在步骤1003中的DCI信息中向UE指示本次使用的导频组号。
UE在获知码道索引后,通过码道索引查找对应的导频索引,然后通过导频索引查找出对应的第二循环移位值和第二时域正交码。
如果存在多组导频资源,则UE通过码道索引在本次使用的导频资源组中查找对应的导频索引。该导频资源组的导频组号由eNB在DCI信息中指示。
步骤1008,UE将预定的基序列经过第二循环移位值和第二时域正交码的处理,生成DM-RS。
UE在步骤1008中使用的基序列与步骤1006中使用的基序列通常是相同的。
UE通过第二循环移位值将预定的基序列进行循环移位生成为长度为RB数*12的参考信号序列,然后采用第二时域正交码对参考信号序列进行时域扩展,生成DM-RS。
步骤1009,UE将SR承载在上行竞争资源中的SR符号上进行发送,将DM-RS承载在上行竞争资源中的参考符号上进行发送,将上行数据承载在上 行竞争资源中的数据符号上进行发送。
也即,UE在同一个上行竞争资源上,同时发送SR、DM-RS和上行数据。
可选地,上行数据包括:本次传输的数据。
可选地,上行数据包括:MCS和本次传输的数据。此时,UE将MCS和本次传输的数据分别承载在上行竞争资源中的数据符号的不同位置进行复用传输。可选地,MCS采用的信道编码码率低于本次传输的数据采用的信道编码码率。
示例性的,MCS和本次传输的数据的传输位置参考图11所示。MCS排布在靠前的资源元素中,方便eNB优先译码得到MCS;本次传输的数据排布在靠后的资源元素中,方便eNB利用优先译码得到MCS对随后译码得到数据进行解码。
步骤1010,eNB根据预存的第一对应关系,查找出与每个码道索引对应的第一循环移位值和第一时域正交码。
若该上行竞争资源是为多个UE分配的,则存在对应的多个码道索引。由于该多个UE都有可能在该上行竞争资源上发送数据,所以eNB需要检测每个码道上是否存在SR。
eNB根据预存的第一对应关系,查找出与每个码道索引对应的第一循环移位值和第一时域正交码。
步骤1011,eNB根据第一循环移位值和第一时域正交码,检测SR符号上与码道索引对应的码道上的信号能量是否达到预定阈值。
eNB并不需要对某一个码道上接收到的SR进行详细解码。eNB只需要在上行竞争资源的SR符号上,检测每个码道上的信号能量是否达到预定阈值。
若当前码道上的信号能量达到了预定阈值,则进入步骤1014。
若当前码道上的信号能量未达到预定阈值,则eNB确定在该码道上没有接收到SR。
步骤1012,若达到预定阈值,则eNB确定接收到与该码道索引对应的UE发送的SR。
步骤1013,对于成功接收到的每个SR,eNB确定与该SR对应的码道索引。
对于成功接收到的SR,eNB尝试接收与该SR对应的UE的上行数据。此时,eNB需要先利用该UE发送的DM-RS进行信道估计,然后根据信道估计 结果接收上行数据。
步骤1014,eNB根据预存的第二对应关系,查找出与该码道索引对应的导频索引,和与该导频索引对应的第二循环移位值和第二时域正交码。
步骤1015,eNB根据第二循环移位值和第二时域正交码对上行竞争资源的参考符号中承载的DM-RS进行信道估计,得到信道估计结果。
步骤1016,eNB根据信道估计结果,对上行竞争资源中的数据符号进行MU-MIMO译码得到上行数据。
若成功接收到n个SR,则步骤1014至步骤1016会执行n次。
需要说明的是,若上行数据包括了MCS和本次传输的数据,则eNB在译码得到上行数据之后,还根据MCS对本次传输的数据进行解调和信道解码。
综上所述,本实施例提供的上行数据发送方法,通过eNB向UE分配对应的UE标识;eNB根据UE标识在PDCCH向多个UE发送DCI;UE从DCI中获取eNB配置的上行竞争资源;通过eNB配置的上行竞争资源中的SR符号向eNB发送SR,通过上行竞争资源中的共享符号向eNB发送上行数据;eNB接收UE通过上行竞争资源中的SR符号发送的SR和UE通过上行竞争资源中的共享符号发送的上行数据;eNB根据成功接收到的SR给对应的UE发送对应的反馈信息。解决了在现有技术中多个UE使用相同的上行竞争资源向eNB发送上行数据产生竞争冲突时,eNB可能会对各个UE发送的上行数据全部解码失败,导致该上行竞争资源完全被浪费;达到了提供一种新的基于竞争的上行数据传输方式,该上行数据传输方式在eNB未成功接收到UE的上行数据时,依然可以根据成功接收到的SR确定哪些UE发送了上行数据。
需要说明的是,图10实施例中有关UE侧的步骤可以单独实现成为UE一侧的上行数据的发送方法,有关eNB侧的步骤可以单独实现成为eNB一侧的上行数据的接收方法。
在可能的实现方式中,步骤1016之后,还包括如下步骤,如图12所示:
步骤1017,在成功接收到SR和与该SR对应的上行数据时,eNB生成ACK信息,并向对应的UE发送该ACK信息。
对于一个UE,若eNB成功接收到该UE发送的SR和上行数据,则eNB生成确认信息,也即ACK信息。
eNB可以通过物理层HARQ指示信道(英文:Physical Hybrid ARQ  Indicator,简称:PHICH)的指定下行资源向UE发送ACK信息。该指定下行资源的资源位置可以由上行竞争资源的资源位置和UE的DM-RS计算得到,计算公式可以参考相关LTE通信协议。
步骤1018,UE接收该ACK信息。
UE通过PHICH信道的指定下行资源接收该ACK信息。
UE在确定自身以竞争模式发送的上行数据被成功接收后,可以继续以竞争模式发送其它的上行数据。
步骤1019,在成功接收到SR且未成功接收到与该SR对应的上行数据时,eNB生成NACK信息,并向对应的UE发送该NACK信息。
对于一个UE,若eNB成功接收到该UE发送的SR但未成功接收该UE发送的上行数据,则eNB生成非确认信息,也即NACK信息。
eNB可以通过PHICH的指定下行资源向UE发送NACK信息。该指定下行资源的资源位置可以由上行竞争资源的资源位置和UE的DM-RS计算得到,计算公式可以参考相关LTE通信协议。
步骤1020,UE接收该NACK信息。
UE通过PHICH信道的指定下行资源接收该NACK信息。
UE在确定自身以竞争模式发送的上行数据未被成功接收后,可以以竞争模式重新发送该上行数据。
综上所述,本实施例通过eNB向UE下发ACK信息或NACK信息,使得即便UE以竞争方式传输上行数据失败,也能够得到eNB侧的反馈,进而决定是继续传输其它上行数据或者重新传输本次的上行数据,提高了eNB和UE之间的通信效率。
作为另外一种可能的实施方式,上述步骤1019和步骤1020可被替代的实现成为步骤1021至步骤1024,如图13所示:
步骤1021,在成功接收到SR但未成功接收到与该SR对应的上行数据时,eNB为该SR对应的UE生成UL Grant;
UL Grant是eNB以基于调度的方式向UE分配上行传输资源时的指示信息。也即,UL Grant携带了eNB向该UE专门分配的上行传输资源的配置信息。
步骤1022,eNB向该UE发送UL Grant;
eNB通过PDCCH信道中的DCI format0向UE发送该UL Grant。
步骤1023,UE接收eNB反馈的UL Grant;
该UL Grant是eNB成功接收到SR但未成功接收到与SR对应的上行数据时发送的。
步骤1024,UE根据UL Grant重新发送上行数据。
综上所述,本实施例中通过eNB向上行数据传输失败的UE直接下发UL grant,使得UE可以以基于调度的方式重传上行数据,有效减少了UE和eNB之间的信令交互,节省了eNB一侧的信令资源。
需要说明的是,图12实施例和图13实施例中有关UE侧的步骤可以单独实现成为UE一侧的上行数据的发送方法,有关eNB侧的步骤可以单独实现成为eNB一侧的上行数据的接收方法。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成,也可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可读存储介质中,上述提到的存储介质可以是只读存储器,磁盘或光盘等。
以上所述仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (48)

  1. 一种上行数据发送装置,其特征在于,所述装置包括:
    确定模块,用于确定上行竞争资源,所述上行竞争资源包括用于传输上行调度请求SR的SR符号和用于传输上行数据的共享符号;
    发送模块,用于通过所述上行竞争资源中的所述SR符号发送所述SR;
    所述发送模块,用于通过所述上行竞争资源中的所述共享符号发送所述上行数据。
  2. 根据权利要求1所述的装置,其特征在于,
    所述发送模块,用于在所述上行竞争资源中的所述SR符号上,通过与本UE对应的码道发送所述SR。
  3. 根据权利要求2所述的装置,其特征在于,所述装置包括:
    所述确定模块,还用于确定所述eNB分配的码道索引;
    所述确定模块,用于根据预存的第一对应关系,查找出与所述码道索引对应的第一循环移位值和第一时域正交码;用于将预定的基序列经过所述第一循环移位值和所述第一时域正交码的处理,生成所述SR;
    所述发送模块,用于将所述SR承载在所述上行竞争资源中的所述SR符号上进行发送。
  4. 根据权利要求1所述的装置,其特征在于,
    所述发送模块,用于在所述上行竞争资源中的所述共享符号上,以多用户多入多出MU-MIMO方式发送所述上行数据。
  5. 根据权利要求4所述的装置,其特征在于,所述共享符号包括:用于传输解调参考信号DM-RS的参考符号和用于传输所述上行数据的数据符号;
    所述确定模块,还用于确定所述eNB分配的码道索引;
    所述确定模块,还用于根据预存的第二对应关系,查找出与所述码道索引对应的导频索引,和与所述导频索引对应的第二循环移位值和第二时域正交码;用于将预定的基序列经过所述第二循环移位值和所述第二时域正交码的处理, 生成所述DM-RS;
    所述发送模块,还用于将所述DM-RS承载在所述上行竞争资源中的所述参考符号上进行发送;
    所述发送模块,还用于将所述上行数据承载在所述上行竞争资源中的所述数据符号上进行发送。
  6. 根据权利要求5所述的装置,其特征在于,所述上行数据包括调制编码策略MCS和本次传输的数据;
    所述发送模块,还用于将所述MCS和所述本次传输的数据分别承载在所述上行竞争资源中进行复用传输;
    其中,所述MCS采用的信道编码码率低于所述本次传输的数据采用的信道编码码率。
  7. 根据权利要求1至6任一所述的装置,其特征在于,所述装置还包括:接收模块;
    所述确定模块,用于获取所述eNB分配的UE标识,所述UE标识包括竞争接入小区无线网络临时标识CA-RNTI或半静态调度竞争接入小区无线网络临时标识SPS-CA-RNTI;
    所述接收模块,用于根据所述UE标识从PDCCH接收下行控制信息DCI;
    所述确定模块,用于从所述DCI中确定所述eNB配置的上行竞争资源;
    其中,所述DCI采用包括有扩展字段的DCI格式format0,所述DCI format0的原有字段包含:所述上行竞争资源所占用的资源块的起始位置和数量,所述上行竞争资源的所述共享符号对应的符号信息;所述扩展字段包括用于指示SR符号的符号信息;或,所述DCI采用DCI formatCA,所述DCI formatCA包括:所述上行竞争资源所占用的资源块的起始位置和数量,所述SR符号的符号信息和所述共享符号对应的符号信息。
  8. 根据权利要求1至6任一所述的装置,其特征在于,所述装置,还包括:
    接收模块,用于接收所述eNB反馈的非确认NACK信息,所述NACK信息是所述eNB成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时发送的;或,
    所述接收模块,用于接收所述eNB反馈的上行调度授权UL Grant,所述ULGrant是所述eNB成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时发送的;所述发送模块,用于根据所述UL Grant重新发送所述上行数据。
  9. 一种上行数据接收装置,其特征在于,所述装置包括:
    配置模块,用于为多个用户设备UE配置上行竞争资源,所述上行竞争资源包括用于传输上行调度请求SR的SR符号和用于传输上行数据的共享符号;
    接收模块,用于通过所述上行竞争资源中的所述SR符号接收所述SR;
    所述接收模块,用于通过所述上行竞争资源中的所述共享符号接收所述上行数据。
  10. 根据权利要求9所述的装置,其特征在于,
    所述接收模块,用于在所述上行竞争资源的所述SR符号上,通过与每个所述UE对应的码道接收所述SR。
  11. 根据权利要求10所述的装置,其特征在于,所述装置还包括:处理模块;
    所述配置模块,用于为所述UE分配对应的码道索引;
    所述处理模块,用于根据预存的第一对应关系,查找出与每个所述码道索引对应的第一循环移位值和第一时域正交码;用于根据所述第一循环移位值和所述第一时域正交码,检测所述SR符号上与所述码道索引对应的码道上的信号能量是否达到预定阈值;
    所述处理模块,用于在达到所述预定阈值时,确定接收到与所述码道索引对应的UE发送的所述SR。
  12. 根据权利要求9所述的装置,其特征在于,
    所述接收模块,用于在所述上行竞争资源中的所述共享符号上,接收以多用户多入多出MU-MIMO方式发送的所述上行数据。
  13. 根据权利要求12所述的装置,其特征在于,所述共享符号包括:用于 传输解调参考信号DM-RS的参考符号和用于传输所述上行数据的数据符号;
    所述装置,还包括:处理模块;
    所述配置模块,用于为所述UE分配对应的码道索引;
    所述处理模块,用于对于成功接收到的每个所述SR,确定所述SR对应的所述码道索引;
    所述处理模块,用于根据预存的第二对应关系,查找出与所述码道索引对应的导频索引,和与所述导频索引对应的第二循环移位值和第二时域正交码;
    所述处理模块,用于根据所述第二循环移位值和所述第二时域正交码对所述上行竞争资源的所述参考符号中承载的解调参考信号DM-RS进行信道估计,得到信道估计结果;
    所述处理模块,用于根据所述信道估计结果,对所述上行竞争资源中的所述数据符号进行多用户多入多出MU-MIMO译码得到所述上行数据。
  14. 根据权利要求13所述的装置,其特征在于,所述上行数据包括:调制编码策略MCS和本次传输的数据;
    所述处理模块,用于根据所述MCS对所述本次传输的数据进行解调和信道解码。
  15. 根据权利要求9至13任一所述的装置,其特征在于,所述装置还包括:发送模块;
    所述配置模块,用于为所述UE分配对应的UE标识;
    所述发送模块,用于对于每个UE,根据UE标识在物理下行控制信道PDCCH发送下行控制信息DCI;
    其中,所述DCI采用包括有扩展字段的DCI格式format0,所述DCI format0的原有字段包含:所述上行竞争资源所占用的资源块的起始位置和数量,所述上行竞争资源的所述共享符号对应的符号信息;所述扩展字段包括用于指示SR符号的符号信息;或,所述DCI采用DCI formatCA,所述DCI formatCA包括:所述上行竞争资源所占用的资源块的起始位置和数量,所述SR符号的符号信息,和所述共享符号对应的符号信息。
  16. 根据权利要求9至13任一所述的装置,其特征在于,所述装置,还包 括:
    处理模块,用于在成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时,生成非确认NACK信息;发送模块,用于向所述SR对应的所述UE发送所述NACK信息;
    或,
    所述处理模块,用于在成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时,为所述SR对应的UE生成上行调度授权UL Grant;所述发送模块,用于向所述SR对应的UE发送所述UL Grant。
  17. 一种用户设备,其特征在于,所述用户设备包括:处理器、存储器和收发器,其中,所述存储器用于存储一个或者一个以上的指令,所述指令被配置成由所述处理器执行;
    所述处理器,用于确定上行竞争资源,所述上行竞争资源包括用于传输上行调度请求SR的SR符号和用于传输上行数据的共享符号;
    所述处理器,还用于控制所述收发器通过所述上行竞争资源中的所述SR符号发送所述SR;
    所述处理器,还用于控制所述收发器通过所述上行竞争资源中的所述共享符号发送所述上行数据。
  18. 根据权利要求17所述的用户设备,其特征在于,
    所述处理器,还用于在所述上行竞争资源中的所述SR符号上,控制所述收发器通过与本UE对应的码道发送所述SR。
  19. 根据权利要求18所述的用户设备,其特征在于,
    所述处理器,还用于确定所述eNB分配的码道索引;
    所述处理器,还用于根据预存的第一对应关系,查找出与所述码道索引对应的第一循环移位值和第一时域正交码;
    所述处理器,还用于将预定的基序列经过所述第一循环移位值和所述第一时域正交码的处理,生成所述SR;
    所述处理器,还用于控制所述收发器将所述SR承载在所述上行竞争资源中的所述SR符号上进行发送。
  20. 根据权利要求17所述的用户设备,其特征在于,所述处理器,用于在所述上行竞争资源中的所述共享符号上,控制所述收发器以多用户多入多出MU-MIMO方式发送所述上行数据。
  21. 根据权利要求20所述的用户设备,其特征在于,所述共享符号包括:用于传输解调参考信号DM-RS的参考符号和用于传输所述上行数据的数据符号;
    所述处理器,还用于确定所述eNB分配的码道索引;
    所述处理器,用于根据预存的第二对应关系,查找出与所述码道索引对应的导频索引,和与所述导频索引对应的第二循环移位值和第二时域正交码;
    所述处理器,还用于将预定的基序列经过所述第二循环移位值和所述第二时域正交码的处理,生成所述DM-RS;
    所述处理器,还用于控制所述收发器将所述DM-RS承载在所述上行竞争资源中的所述参考符号上进行发送,将所述上行数据承载在所述上行竞争资源中的所述数据符号上进行发送。
  22. 根据权利要求21所述的用户设备,其特征在于,所述上行数据包括调制编码策略MCS和本次传输的数据;
    所述处理器,还用于将所述MCS和所述本次传输的数据分别承载在所述上行竞争资源中进行复用传输;
    其中,所述MCS采用的信道编码码率低于所述本次传输的数据采用的信道编码码率。
  23. 根据权利要求17至22任一所述的用户设备,其特征在于,
    所述处理器,还用于获取所述eNB分配的UE标识,所述UE标识包括竞争接入小区无线网络临时标识CA-RNTI或半静态调度竞争接入小区无线网络临时标识SPS-CA-RNTI;
    所述处理器,还用于控制所述收发器根据所述UE标识从物理下行控制信道PDCCH接收下行控制信息DCI;
    所述处理器,还用于从所述DCI中确定所述eNB配置的上行竞争资源;
    其中,所述DCI采用包括有扩展字段的DCI格式format0,所述DCI format0的原有字段包含:所述上行竞争资源所占用的资源块的起始位置和数量,所述上行竞争资源的所述共享符号对应的符号信息;所述扩展字段包括用于指示SR符号的符号信息;或,所述DCI采用DCI formatCA,所述DCI formatCA包括:所述上行竞争资源所占用的资源块的起始位置和数量,所述SR符号的符号信息和所述共享符号对应的符号信息。
  24. 根据权利要求17至22任一所述的用户设备,其特征在于,
    所述处理器,用于控制所述收发器接收所述eNB反馈的非确认NACK信息,所述NACK信息是所述eNB成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时发送的;
    或,
    所述处理器,还用于控制所述收发器接收所述eNB反馈的上行调度授权ULGrant,所述UL Grant是所述eNB成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时发送的;所述处理器,还用于控制所述收发器根据所述UL Grant重新发送所述上行数据。
  25. 一种演进型基站,其特征在于,所述基站包括:处理器、存储器和收发器,其中所述存储器用于存储一个或者一个以上的指令,所述指令被配置成由所述处理器执行;
    所述处理器,用于为多个用户设备UE配置上行竞争资源,所述上行竞争资源包括用于传输上行调度请求SR的SR符号和用于传输上行数据的共享符号;
    所述处理器,还用于控制所述收发器通过所述上行竞争资源中的所述SR符号接收所述SR;
    所述处理器,还用于控制所述收发器通过所述上行竞争资源中的所述共享符号接收所述上行数据。
  26. 根据权利要求25所述的基站,其特征在于,所述处理器,用于在所述上行竞争资源的所述SR符号上,控制所述收发器通过与每个所述UE对应的码道接收所述SR。
  27. 根据权利要求26所述的基站,其特征在于,
    所述处理器,还用于为所述UE分配对应的码道索引;
    所述处理器,还用于根据预存的第一对应关系,查找出与每个所述码道索引对应的第一循环移位值和第一时域正交码;
    所述处理器,还用于根据所述第一循环移位值和所述第一时域正交码,检测所述SR符号上与所述码道索引对应的码道上的信号能量是否达到预定阈值;
    所述处理器,还用于若达到所述预定阈值,则确定接收到与所述码道索引对应的UE发送的所述SR。
  28. 根据权利要求25所述的基站,其特征在于,
    所述处理器,还用于在所述上行竞争资源中的所述共享符号上,控制所述收发器接收以多用户多入多出MU-MIMO方式发送的所述上行数据。
  29. 根据权利要求28所述的基站,其特征在于,所述共享符号包括:用于传输解调参考信号DM-RS的参考符号和用于传输所述上行数据的数据符号;
    所述处理器,还用于为所述UE分配对应的码道索引;
    所述处理器,还用于对于成功接收到的每个所述SR,确定所述SR对应的所述码道索引;
    所述处理器,还用于根据预存的第二对应关系,查找出与所述码道索引对应的导频索引,和与所述导频索引对应的第二循环移位值和第二时域正交码;
    所述处理器,还用于根据所述第二循环移位值和所述第二时域正交码对所述上行竞争资源的所述参考符号中承载的解调参考信号DM-RS进行信道估计,得到信道估计结果;
    所述处理器,还用于根据所述信道估计结果,对所述上行竞争资源中的所述数据符号进行多用户多入多出MU-MIMO译码得到所述上行数据。
  30. 根据权利要求29所述的基站,其特征在于,所述上行数据包括:调制编码策略MCS和本次传输的数据;
    所述处理器,还用于根据所述MCS对所述本次传输的数据进行解调和信道解码。
  31. 根据权利要求25至29任一所述的基站,其特征在于,
    所述处理器,还用于为所述UE分配对应的UE标识;
    所述处理器,还用于对于每个UE,控制所述收发器根据UE标识在物理下行控制信道PDCCH发送下行控制信息DCI;
    其中,所述DCI采用包括有扩展字段的DCI格式format0,所述DCI format0的原有字段包含:所述上行竞争资源所占用的资源块的起始位置和数量,所述上行竞争资源的所述共享符号对应的符号信息;所述扩展字段包括用于指示SR符号的符号信息;或,所述DCI采用DCI formatCA,所述DCI formatCA包括:所述上行竞争资源所占用的资源块的起始位置和数量,所述SR符号的符号信息,和所述共享符号对应的符号信息。
  32. 根据权利要求25至29任一所述的基站,其特征在于,
    所述处理器,还用于在成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时,生成非确认NACK信息;所述处理器,还用于控制所述收发器向所述SR对应的所述UE发送所述NACK信息;
    或,
    所述处理器,还用于在成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时,为所述SR对应的UE生成上行调度授权UL Grant;所述处理器,还用于控制所述收发器向所述SR对应的UE发送所述UL Grant。
  33. 一种上行数据发送方法,其特征在于,所述方法包括:
    确定上行竞争资源,所述上行竞争资源包括用于传输上行调度请求SR的SR符号和用于传输上行数据的共享符号;
    通过所述上行竞争资源中的所述SR符号发送所述SR;
    通过所述上行竞争资源中的所述共享符号发送所述上行数据。
  34. 根据权利要求33所述的方法,其特征在于,所述通过所述上行竞争资源中的所述SR符号向所述eNB发送所述SR,包括:
    在所述上行竞争资源中的所述SR符号上,通过与本UE对应的码道向所述eNB发送所述SR。
  35. 根据权利要求34所述的方法,其特征在于,所述在所述上行竞争资源中的所述SR符号上,通过与本UE对应的码道向所述eNB发送所述SR之前,还包括:
    确定所述eNB分配的码道索引;
    所述在所述上行竞争资源中的所述SR符号上,通过与本UE对应的码道向所述eNB发送所述SR之前,包括:
    根据预存的第一对应关系,查找出与所述码道索引对应的第一循环移位值和第一时域正交码;
    将预定的基序列经过所述第一循环移位值和所述第一时域正交码的处理,生成所述SR;
    将所述SR承载在所述上行竞争资源中的所述SR符号上进行发送。
  36. 根据权利要求33所述的方法,其特征在于,所述通过所述上行竞争资源中的所述共享符号向所述eNB发送所述上行数据,包括:
    在所述上行竞争资源中的所述共享符号上,以多用户多入多出MU-MIMO方式发送所述上行数据。
  37. 根据权利要求36所述的方法,其特征在于,所述共享符号包括:用于传输解调参考信号DM-RS的参考符号和用于传输所述上行数据的数据符号;
    所述在所述上行竞争资源中的所述共享符号上,以多用户多入多出MU-MIMO方式发送所述上行数据之前,还包括:
    接收所述eNB分配的码道索引;
    所述在所述上行竞争资源中的所述共享符号上,以多用户多入多出MU-MIMO方式发送所述上行数据,包括:
    根据预存的第二对应关系,查找出与所述码道索引对应的导频索引,和与所述导频索引对应的第二循环移位值和第二时域正交码;
    将预定的基序列经过所述第二循环移位值和所述第二时域正交码的处理,生成所述DM-RS;
    将所述DM-RS承载在所述上行竞争资源中的所述参考符号上进行发送,将所述上行数据承载在所述上行竞争资源中的不同资源位置的所述数据符号上进行发送。
  38. 根据权利要求37所述的方法,其特征在于,所述上行数据包括调制编码策略MCS和本次传输的数据;
    所述将所述上行数据承载在所述上行竞争资源中的所述数据符号上进行发送,包括:
    将所述MCS和所述本次传输的数据分别承载在所述上行竞争资源中的不同资源位置进行复用传输;
    其中,所述MCS采用的信道编码码率低于所述本次传输的数据采用的信道编码码率。
  39. 根据权利要求32至38任一所述的方法,其特征在于,所述确定上行竞争资源,包括:
    获取所述eNB分配的UE标识,所述UE标识包括竞争接入小区无线网络临时标识CA-RNTI或半静态调度竞争接入小区无线网络临时标识SPS-CA-RNTI;
    根据所述UE标识从物理下行控制信道PDCCH接收下行控制信息DCI;
    从所述DCI中确定所述eNB配置的上行共享子帧;
    其中,所述DCI采用包括有扩展字段的DCI格式format0,所述DCI format0的原有字段包含:所述上行竞争资源所占用的资源块的起始位置和数量,所述上行竞争资源的所述共享符号对应的符号信息;所述扩展字段包括用于指示SR符号的符号信息;或,所述DCI采用DCI formatCA,所述DCI formatCA包括:所述上行竞争资源所占用的资源块的起始位置和数量,所述SR符号的符号信息和所述共享符号对应的符号信息。
  40. 根据权利要求32至38任一所述的方法,其特征在于,所述通过所述上行竞争资源中的所述共享符号向所述eNB发送所述上行数据之后,还包括:
    接收所述eNB反馈的非确认NACK信息,所述NACK信息是所述eNB成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时发送的;
    或,
    接收所述eNB反馈的上行调度授权UL Grant,所述UL Grant是所述eNB成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时发送的; 根据所述UL Grant重新发送所述上行数据。
  41. 一种上行数据接收方法,其特征在于,所述方法包括:
    为多个用户设备UE配置上行竞争资源,所述上行竞争资源包括用于传输上行调度请求SR的SR符号和用于传输上行数据的共享符号;
    通过所述上行竞争资源中的所述SR符号接收所述SR;
    通过所述上行竞争资源中的所述共享符号接收所述上行数据。
  42. 根据权利要求41所述的方法,其特征在于,所述通过所述上行竞争资源中的所述SR符号接收所述UE的所述SR,包括:
    在所述上行竞争资源的所述SR符号上,通过与每个所述UE对应的码道接收所述SR。
  43. 根据权利要求42所述的方法,其特征在于,所述在所述上行竞争资源的所述SR符号上,通过与每个所述UE对应的码道接收所述SR之前,还包括:
    为所述UE分配对应的码道索引;
    所述在所述上行竞争资源的所述SR符号上,通过与每个所述UE对应的码道接收所述SR,包括:
    根据预存的第一对应关系,查找出与每个所述码道索引对应的第一循环移位值和第一时域正交码;
    根据所述第一循环移位值和所述第一时域正交码,检测所述SR符号上与所述码道索引对应的码道上的信号能量是否达到预定阈值;
    若达到所述预定阈值,则确定接收到与所述码道索引对应的UE发送的所述SR。
  44. 根据权利要求41所述的方法,其特征在于,所述通过所述上行竞争资源中的所述共享符号接收所述UE的所述上行数据,包括:
    在所述上行竞争资源中的所述共享符号上,接收所述UE以多用户多入多出MU-MIMO方式发送的所述上行数据。
  45. 根据权利要求44所述的方法,其特征在于,所述共享符号包括:用于 传输解调参考信号DM-RS的参考符号和用于传输所述上行数据的数据符号;
    所述在所述上行竞争资源中的所述共享符号上,接收所述UE以MU-MIMO方式发送的所述上行数据之前,还包括:
    向所述UE分配对应的码道索引;
    所述在所述上行竞争资源中的所述共享符号上,接收所述UE以MU-MIMO方式发送的所述上行数据,包括:
    对于成功接收到的每个所述SR,确定所述SR对应的所述码道索引;
    根据预存的第二对应关系,查找出与所述码道索引对应的导频索引,和与所述导频索引对应的第二循环移位值和第二时域正交码;
    根据所述第二循环移位值和所述第二时域正交码对所述上行竞争资源的所述参考符号中承载的解调参考信号DM-RS进行信道估计,得到信道估计结果;
    根据所述信道估计结果,对所述上行竞争资源中的所述数据符号进行多用户多入多出MU-MIMO译码得到所述上行数据。
  46. 根据权利要求45所述的方法,其特征在于,所述上行数据包括:调制编码策略MCS和本次传输的数据;
    所述根据所述信道估计结果,对所述上行竞争资源中的所述数据符号进行多用户多入多出MU-MIMO译码得到所述上行数据之后,还包括:
    根据所述MCS对所述本次传输的数据进行解调和信道解码。
  47. 根据权利要求41至45任一所述的方法,其特征在于,所述向多个用户设备UE配置上行竞争资源,包括:
    向所述UE分配对应的UE标识;
    对于每个UE,根据所述UE的UE标识在物理下行控制信道PDCCH发送下行控制信息DCI;
    其中,所述DCI采用包括有扩展字段的DCI格式format0,所述DCI format0的原有字段包含:所述上行竞争资源所占用的资源块的起始位置和数量,所述上行竞争资源的所述共享符号对应的符号信息;所述扩展字段包括用于指示SR符号的符号信息;或,所述DCI采用DCI formatCA,所述DCI formatCA包括:所述上行竞争资源所占用的资源块的起始位置和数量,所述SR符号的符号信息,和所述共享符号对应的符号信息。
  48. 根据权利要求41至45任一所述的方法,其特征在于,所述通过所述上行竞争资源中的所述共享符号接收所述UE的所述上行数据之后,还包括:
    在成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时,生成非确认NACK信息;向所述SR对应的所述UE发送所述NACK信息;
    或,
    在成功接收到所述SR但未成功接收到与所述SR对应的所述上行数据时,为所述SR对应的UE生成上行调度授权UL Grant;向所述SR对应的UE发送所述UL Grant。
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