WO2018028604A1 - Procédés et appareil de transmission de données d'ul - Google Patents

Procédés et appareil de transmission de données d'ul Download PDF

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Publication number
WO2018028604A1
WO2018028604A1 PCT/CN2017/096639 CN2017096639W WO2018028604A1 WO 2018028604 A1 WO2018028604 A1 WO 2018028604A1 CN 2017096639 W CN2017096639 W CN 2017096639W WO 2018028604 A1 WO2018028604 A1 WO 2018028604A1
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Prior art keywords
resource
response signal
uplink
message
reservation
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PCT/CN2017/096639
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English (en)
Inventor
Feifei SUN
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Mediatek Singapore Pte. Ltd.
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Application filed by Mediatek Singapore Pte. Ltd. filed Critical Mediatek Singapore Pte. Ltd.
Priority to CN201780004455.2A priority Critical patent/CN108605364A/zh
Publication of WO2018028604A1 publication Critical patent/WO2018028604A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

Definitions

  • the disclosed embodiments relate generally to wireless communication, and, more particularly, to indication and implementation of uplink data transmission.
  • Machine-Type Communication is an important revenue stream for operators and has a huge potential from the operator perspective.
  • Lowering the cost of MTC user equipment (UE) or devices is an important enabler for the implementation of the concept of "internet of things" (IOT) .
  • Many MTC devices are targeting low-end (low average revenue per user, low data rate) applications that can be handled adequately by GSM/GPRS. Owing to the low-cost of these devices and good coverage of GSM/GPRS, there is very little motivation for MTC UE suppliers to use modules supporting the LTE radio interface.
  • a new type of terminal i.e.
  • low cost MTC UE low cost MTC UE
  • the design of the LC-MTC UEs is tailored for the low-end of the MTC market to be competitive with that of GSM/GPRS terminals.
  • the low cost MTC device /UE is characterized by: 1) One Rx antenna; 2) Downlink and uplink maximum TBS size of 1000 bits; 3) Bandwidth reduction (BR) –resources for each channel transmission are limited to contiguous 6 PRBs (1.4MHz) for cost reduction, and 4) Coverage enhancement –some applications of LC-MTC UEs will require 15-20dB coverage extension and repeated transmission is a common technique to compensate penetration losses.
  • BR-UE bandwidth reduction
  • IoT/MTC traffic there is a lot of infrequent small UL traffic data, e.g., up to 100 ⁇ 200 bytes uplink traffic periodically reported 1/hour to 1/year.
  • the current cellular uplink (UL) data transmission requires random access channel (RACH) procedure to establish a radio resource control (RRC) connection.
  • RACH random access channel
  • RRC radio resource control
  • the signaling overhead is quite large with hundreds of bytes information exchanges before the RRC setup. It is not efficient especially for small UL traffic data. Improvements for uplink data transmission are needed.
  • Methods and apparatus are provided for contention-based UL resource reservation and power control for UL non-orthogonal multiple access (NOMA) .
  • NOMA non-orthogonal multiple access
  • the UE selects a resource block from a resource pool and sends a contention-based uplink message based on the selected resource block to a base station, wherein the uplink message indicates reserving corresponding uplink resources associated with selected resource block.
  • the UE receives a response signal from the base station in response to the uplink message, wherein a positive response signal indicates a success reservation of the corresponding uplink resources.
  • the UE transmits uplink data on the corresponding uplink resources upon receiving the positive response signal.
  • uplink message at least includes a reservation resource request (RRR) , and the positive response signal is an authorization signal.
  • RRR reservation resource request
  • the RRR is selected from a RRR types comprising a content-based RRR (CR) and a resource-based RRR (RR) , and wherein the response signal can be one of the response types: authorization signal (AR) or resource authorization signal (SR) .
  • the uplink message is transmitted on the selected resource block and includes one or more transport blocks, and wherein the response signal is an ACK or a NACK in response to the uplink message, and wherein the ACK response signal indicates a success reservation of resource blocks for subsequent uplink data and the NACK response signal triggers a UE retransmission or a new UE transmission.
  • the uplink message further includeds a UE identification (ID) .
  • the resource pool is preconfigured based on one or more elements received from the wireless network comprising information elements broadcasted in a system information and information elements in a radio resource control (RRC) message.
  • the resource pool is related to one or more identifications comprising at least one of the following: a cell ID, a UE ID, a subframe number, and a frame number, and wherein the UE derives the resource pool based on the one or more identifications.
  • the resource pool further comprising multiple sub-pools associates with multiple corresponding levels comprising at least one of the following: a coverage level, a channel status level, and a reference signal received power (RSRP) .
  • the response signal is transmitted by the base station on a resource block that is mapped from a resource block that the uplink message is transmitted based on a predefined mapping rule.
  • the UE measures downlink signals and obtaining a path loss, selects a power offset from a configured power offset pool, calculates a transmit power based on the path loss, a target power and the selected power offset, wherein the target power is configured by a network entity of the wireless network, and transmits an uplink message with the calculated transmit power.
  • the power offset is randomly selected from a set of preconfigured offset value.
  • the set of preconfigured offset value is configured per uplink resource or is cell-specific.
  • the power set is generated with a distribution.
  • the power offset is generated based on a predefined rule using one or more identifications comprising a UE ID, a radio network temporary identifier (RNTI) , a UE-specific identification, a cell-specific identification, and a group-specific identification.
  • a radio network temporary identifier RNTI
  • Figure 1 illustrates an exemplary mobile communication network with UEs supporting contention-based UL resource reservation and improved uplink power control in accordance with embodiments of the current invention.
  • Figure 2A illustrates an exemplary message flow diagram for a contention-based UL resource reservation in accordance to embodiments of the current invention.
  • Figure 2B illustrates exemplary diagrams for different combinations of the contention-based UL resource reservation in accordance with embodiments of the current invention.
  • Figure 3 illustrates an exemplary flow diagram for contention-based resource reservation with UE identification information included in accordance with embodiments of the current invention.
  • Figure 4 illustrates an exemplary flow diagram for contention-based resource reservation with UE sending UL message on selected resources directly in accordance with embodiments of the current invention.
  • Figure 5 illustrates exemplary diagrams for resource pool and resource sub-pool for the contention-based UL resource reservation in accordance with embodiments of the current invention.
  • Figure 6 illustrates exemplary diagrams for resource allocation for RRR, response signal, and UL data transmission in accordance with embodiments of the current invention.
  • Figure 7 illustrates exemplary diagrams for resource allocation for RRR, response signal, and UL data transmission in contention based mapping and resource reservation in accordance with embodiments of the current invention.
  • Figure 8 illustrates exemplary diagram for resource mapping using DCI configuration in accordance with embodiments of the current invention.
  • Figure 9 illustrates exemplary diagram for resource mapping using DCI and UE identification configuration in accordance with embodiments of the current invention.
  • Figure 10 illustrates exemplary diagram for resource mapping using DL resource assignment in accordance with embodiments of the current invention.
  • Figure 11 illustrates exemplary diagrams for power control for UL non-orthogonal multiple access (NOMA) in accordance with embodiments of the current invention.
  • NOMA non-orthogonal multiple access
  • Figure 12 illustrates an exemplary flow chart for the contention-based UL resource reservation in accordance with embodiment of the current invention.
  • Figure 13 illustrates an exemplary flow chart for power control for UL non-orthogonal multiple access in accordance with embodiment of the current invention.
  • FIG. 1 illustrates an exemplary mobile communication network 100 with UEs supporting contention-based UL resource reservation and improved uplink power control in accordance with embodiments of the current invention.
  • Wireless communication system 100 includes one or more fixed base infrastructure units forming a network distributed over a geographical region.
  • the base unit may also be referred to as an access point, an access terminal, a base station, a Node-B, an eNode-B (eNB) , or by other terminology used in the art.
  • the one or more base stations 101 and 102 serve a number of remote units /user equipment (UEs) 103 and 104 within a serving area, for example, a cell, or within a cell sector.
  • UEs remote units /user equipment
  • one or more base stations are communicably coupled to a controller forming an access network that is communicably coupled to one or more core networks.
  • the disclosure is not intended to be limited to any particular wireless communication system.
  • the eNB 101 and 102 respectively transmit downlink communication signals 112, 113 to UE 103, and 104 in the time and/or frequency and/or code domain.
  • UE 103 and 104 communicate with one or more eNB 101 and 102 via uplink communication signals 111, and 114 respectively.
  • the one or more eNB 101 and 102 may comprise one or more transmitters and one or more receivers that serve the UEs 103 and 104.
  • UE 103 and 104 may be fixed or mobile user terminals.
  • the UE may also be referred to as subscriber units, mobile stations, users, terminals, subscriber stations, user terminals, or by other terminology used in the art.
  • UE 103 and 104 may also comprise one or more transmitters and one or more receivers.
  • UEs 103 and 104 may have half-duplex (HD) or full-duplex (FD) transceivers. Half-duplex transceivers do not transmit and receive simultaneously whereas full-duplex terminals transmit and receive simultaneously.
  • one eNB 101 can serve different kind of UEs.
  • UE 103 and 104 may belong to different categories, such as having different RF bandwidth or different subcarrier spacing. UE belonging to different categories may be designed for different use cases or scenarios. For example, some use case such as MTC may require very low throughput, delay torrent, the traffic packet size may be very small (e.g., 1000 bit per message) , extension coverage. Some other use cases, e.g. intelligent transportation system, may be very strict with latency, e.g.
  • Different UE categories may be introduced for these diverse requirements.
  • Different frame structures or system parameters may also be used in order to achieve some special requirement. For example, different UEs may have different RF bandwidths, subcarrier spacing, omitting some system functionalities (e.g., random access, CSI feedback) , or use physical channels/signals for the same functionality (e.g., different reference signals) .
  • Figure 1 also shows an exemplary diagram of protocol stacks 121 and 122 for control-plane for MTC UE 103 and eNB 101.
  • UE 103 has a protocol stack 121, which includes the physical (PHY) layer, the medium access control (MAC) layer, the radio link control (RLC) layer, the pack data convergence protocol (PDCP) layer, and the radio resource control (RRC) layer.
  • eNB 101 has a protocol stack 122.
  • Protocol stack 122 connects with protocol stack 121.
  • the UE-eNB protocol stack 122 includes the PHY layer, the MAC layer, the RLC layer the PDCP layer and the RRC layer, each of which connects with their corresponding protocol stack of UE protocol stack 121.
  • Figure 1 further illustrates simplified block diagrams 130 and 150 of UE 103 and eNB 101, respectively.
  • UE 103 has an antenna 135, which transmits and receives radio signals.
  • a RF transceiver module 133 coupled with the antenna, receives RF signals from antenna 135, converts them to baseband signals and sends them to processor 132.
  • RF transceiver 133 also converts received baseband signals from processor 132, converts them to RF signals, and sends out to antenna 135.
  • Processor 132 processes the received baseband signals and invokes different functional modules to perform features in UE 103.
  • Memory 131 stores program instructions and data 134 to control the operations of UE 103.
  • UE 103 is configured with processor 132 that performs instruction stored in memory 131.
  • the processor 132 is configured to carry out different functional tasks as shown.
  • UE 103 also includes multiple function modules that carry out different tasks in accordance with embodiments of the current invention.
  • a selector 141 selects a resource block from a resource pool in the wireless network.
  • An uplink resource manager 142 sends an uplink message based on the selected resource block to a base station, wherein the uplink message indicates an uplink reservation for corresponding uplink resources associated with selected resource block.
  • a reservation manager 143 receives a response signal from the base station in response to the uplink message, wherein a positive response signal indicates a success reservation of the corresponding uplink resources.
  • a contention-based transmitter 144 transmits uplink data on the corresponding uplink resources upon receiving the positive response signal.
  • a power-offset manager 145 handles new UL power control procedures for the UE by applying a power-offset value.
  • multiple circuits are configured to carry out one or more of the tasks.
  • a resource managing circuit which selects a resource block from a resource pool in the wireless network. An uplink message based on the selected resource block to a base station, wherein the uplink message indicates an uplink reservation for corresponding uplink resources associated with selected resource block.
  • the resource managing circuit receives a response signal from the base station in response to the uplink message, wherein a positive response signal indicates a success reservation of the corresponding uplink resources.
  • a power-offset managing circuit handles new UL power control procedures for the UE by applying a power-offset value.
  • eNB 101 has an antenna 155, which transmits and receives radio signals.
  • a RF transceiver module 153 coupled with the antenna, receives RF signals from antenna 155, converts them to baseband signals, and sends them to processor 152.
  • RF transceiver 153 also converts received baseband signals from processor 152, converts them to RF signals, and sends out to antenna 155.
  • Processor 152 processes the received baseband signals and invokes different functional modules to perform features in eNB 101.
  • Memory 151 stores program instructions and data 154 to control the operations of eNB 101.
  • eNB 101 also includes function modules that carry out different tasks in accordance with embodiments of the current invention.
  • a uplink resource manager 156 handles the contention-based UL resource reservations.
  • a power control manager 157 handles the new UL power control procedures by applying a power offset value.
  • IoT/MTC traffic there are many infrequent small-sized UL data traffics.
  • IoT/MTC traffic may be 100 ⁇ 200 bytes uplink traffic periodically reported from once an hour to once a year.
  • the current cellular uplink data transmission which requires RACH, establishing a RRC connection is not efficient.
  • the signaling overhead is quite large with hundreds of bytes information exchanges before the RRC setup.
  • narrow band (NB) system/signal carrier system provides a very promising coverage without increasing UL transmission (TX) power. Multiple tones/resources are available for UE to perform accessing.
  • TX UL transmission
  • Contention based uplink transmission can significantly reduce signaling overhead.
  • the UE may need to transmit for a long time to compensate path-loss. It is too costly on power consumption if a long transmission collides with another UE.
  • it is hard to support HARQ combination when the transmission is contention based instead of scheduling based.
  • Methods and apparatus are provided for contention based UL transmission with contention based UL resource reservation.
  • Uplink control information is transmitted in Physical Uplink Control Channel (PUCCH) or transmitted with or without a transport block in PUSCH.
  • UCI includes HARQ, scheduling request (SR) , channel status information (CSI) .
  • PUCCH is allocated the border PRBs in uplink system bandwidth. Frequency diversity gain for PUCCH is obtained by frequency hopping between two slots in one subframe.
  • Code Division Multiplexing (CDM) is used for PUCCH multiplexing between different UEs on the same radio resource.
  • FIG. 2A illustrates an exemplary message flow diagram for a contention-based UL resource reservation in accordance to embodiments of the current invention.
  • a UE 201 is in the connected mode or IDLE mode in a wireless network with an eNB 202.
  • UE 201 sends a contention-based UL message with a Resource Reservation Request (RRR) to eNB 202.
  • RRR Resource Reservation Request
  • the RRR is a contention-based signal based on UE ID
  • the RRR is a contention-based signal on a resource selected by the UE.
  • eNB 202 sends a response signal.
  • the response signal is an authorization on a reservation resource related to the RRR from UE, or an authorization signal about the RRR from UE.
  • UE 201 sends UL data transmission on the reserved resource for data transmission to eNB 202, or on the corresponding resources of the RRR. If UE successfully decodes an authorization signal, UE 201 transmits UL data the reserved resource for data transmission, or on the corresponding resources of the response in step 212. In one embodiment, a time window is set for UE 201 to decode the authorization signal. In another embodiment, if UE 201 does not decode an authorization signal correctly, such as no indication in resource mapping (RS_MAP) field, UE 201 assumes the reservation failed. UE 201 will select a new reservation resource from the resource pool and sends RRR again. In yet another embodiment if UE 201 does not receive ACK or NACK signal, UE 201 may wait for a random time, or wait for a configured period based on the configuration in SIB from eNB before transmitting the next request.
  • RS_MAP resource mapping
  • UE 201 could perform retransmission after the first UL data transmission.
  • eNB 202 sends feedback with an ACK/NACK signal after UE transmits/retransmits UL data.
  • UE 201 receives NACK, at step 215, UE 201 performs retransmission until an ACK is received from eNB 202. If UE 201 does not received ACK under some conditions, such as retransmission timer expires, or the maximum retransmission number reached, UE 201 turns into IDLE mode if UE 201 is in connected mode originally, otherwise UE 201 stays in IDLE mode if UE is in IDLE mode originally.
  • the RRR include a sequence.
  • eNB 202 can detect the RRR with low complexity.
  • UE 201 can send RRR within a short time to avoid sending a large message.
  • the RRR message is content-based called contention-based-RRR (CR) .
  • the CR may include contents such as UE ID, RNTI, and Random number.
  • the RRR message is resource based RRR called resource-based-RRR (RR) .
  • the RR may include one or more resource information such as time /frequency resource, spreading code, scrambling code, and codebook.
  • the response signals to the RRR can be in different forms.
  • the response signal is an authorization signal called authorization-response (AR) .
  • AR authorization-response
  • the AR indicates an authorization for the use of resource blocks or a success resource reservation of resource blocks.
  • the AR is transmitted on the preconfigured or known resources to the UE and the eNB.
  • the UE blind detected in a resource set, such as the pre-defined resource, or can be determined based the resource, such as the frequency hopping (FH) pattern used in RRR.
  • Some one-to-one mapping can be defined to avoid blind detection in UE to save power consumption.
  • RS_MAP resource mapping
  • the one-to-one mapping is defined.
  • the response signal is a resource of response signal called resource response (SR) .
  • the authorization signal SR may include UE identity (UE ID or RNTI) , which is similar as current message 4 (MSG4) for contention resolution.
  • UE identity UE ID or RNTI
  • MSG4 current message 4
  • the request signal could be a contention based signal, e.g. CR, or a resource, e.g. RR
  • the response could be a signal, e.g. AR, or a resource for response signal, e.g. SR.
  • Figure 2B illustrates exemplary diagrams for different combinations of the contention-based UL resource reservation in accordance with embodiments of the current invention. Since there are two kinds of request signal, and two kinds of response, so, there are four combination of the above request signal and response, i.e., CR+AR, CR+SR (resource based) , RR (resource based) +AR, and RR (resource based) +SR (resource based) .
  • a UE 201 is in the connected mode or IDLE mode in a wireless network with an eNB 202.
  • Diagram 220 illustrates the scenario of UE receiving an AR in response to a CR.
  • UE 201 sends a UL message with RRR in the form of CR.
  • UE 201 receives a response signal in the form of AR.
  • UE 201 transmits sequence n for RRR.
  • eNB 202 generates a response signal based on sequence n.
  • UE 201 transmits RRR with one message such as, UE ID, RNTI, and Random number, eNB 202 generates a response signal based on the message.
  • Diagram 230 illustrates the scenario of UE receiving an AR in response to a RR.
  • UE 201 sends a UL message with RRR in the form of RR.
  • UE 201 receives a response signal in the form of AR.
  • the authorization signal is generated by eNB 202 based on the resource of RRR.
  • the resource of RRR (RR) is one or combination of more: time/frequency resource (one subcarrier is a special case) , spreading code, scrambling code, codebook.
  • UE 201 selects the resource n for RRR. On the resource n, UE 201 transmits RR in step 231.
  • eNB 202 generates a response signal based on the resource n, for example, based on the index, indicator or location of the resource.
  • the resource n could be one or combination of more: time/frequency resource (one subcarrier is a special case) , spreading code, scrambling code, or codebook.
  • eNB202 transmits the AR to UE 201.
  • the response signal AR is transmitted in a pre-known resource (or UE blind detected in a resource set) , e.g., pre-defined resource, or can be determined based the resource (e.g., FH pattern) used in step 231 (one on one mapping to the resource used by UE) .
  • a pre-known resource or UE blind detected in a resource set
  • the resource e.g., FH pattern
  • Some one-to-one mapping can be defined to avoid blind detection in UE to save power consumption.
  • the one-on-one mapping is defined in some RS_MAP field in the MAC header.
  • Diagram 240 illustrates the scenario of UE receiving an SR in response to a CR.
  • UE 201 sends a UL message with RRR in the form of CR.
  • UE 201 receives a response signal in the form of SR, e.g. resource m. in this case, the response signal is based on RR+SR, UE selects the resource n for RRR transmission, where the resource n is one or multiple of time/frequency resource, spreading code, code book, scrambling code, sequence, subcarrier index, etc. ; eNB transmit a response signal on resource m, where resource m is selected by eNB based on resource n. In another word, UE transmits RRR message on selected resource n; UE detects for response signal on resource m corresponding to resource n for RRR message transmission.
  • Diagram 250 illustrates the scenario of UE receiving an SR in response to a CR.
  • UE 201 sends a UL message with RRR in the form of RR, e.g. resource n.
  • UE 201 receives a response signal in the form of SR, e.g. resource m.
  • UE 201 selects the resource n for RRR transmission.
  • the resource n is one or multiple of time/frequency resource, spreading code, codebook, scrambling code, sequence, subcarrier index, etc.
  • eNB 202 transmits a response signal on resource m.
  • Resource m is selected by eNB 202 based on resource n.
  • UE 201 transmits RRR message on selected resource n and detects for response signal on resource m corresponding to resource n for its RRR message transmission.
  • the response signal is based on CR+SR
  • UE transmits RRR in a contention-based way (e.g., UE ID, RNTI, Random number) ; eNB transmit a response signal on resource m based on the contention in RRR.
  • RRR message with C-RNTI and eNB successfully decodes the RRR message, obtains the content C-RNTI, and transmits a response signal on resource m, where resource m is based on the content C-RNTI.
  • UE detects for the response signal on resource m based on its C-RNTI.
  • more than one UE may send the same or different RRR on the same resource.
  • the eNB may or may not be able to detect it. If eNB detects that different UEs are using the same resource, the eNB would send NACK to the UE. Alternatively, the eNB would send nothing so that UE will re-transmit RRR later. If the eNB does not detect that multiple UEs are using the same resource, the collision may happen during data transmission. Subsequently, contention resolution is needed.
  • MSG2 current protocol using message 2
  • FIG. 3 illustrates an exemplary flow diagram for contention-based resource reservation with UE identification information included in accordance with embodiments of the current invention.
  • a UE 301 is in the connected mode or IDLE mode in a wireless network with an eNB 302.
  • UE 301 sends a contention-based UL message with a resource reservation request (RRR) to eNB 302.
  • the RRR includes at least a UE identification, such as a UE ID.
  • the UE identification can be the UE ID, the RNTI, a random number, the BSR, the CSI, or data volume (DV) .
  • eNB 302 sends a response signal.
  • the response signal includes the UL grant with a UE identification for contention resolution on the resource used for the response signal.
  • UE 301 performs UL data transmission on the reservation resource associated with the UL grant. If eNB 302 receives and decodes the UL data, eNB 302 transmits ACK to UE in step 314. eNB 302 transmits NACK to UE in step 314 if eNB does not successfully decode the information from UE 301. UE 301 could perform retransmission until an ACK is received. UE 301 turns in to IDLE mode or PSM mode for power saving. In one embodiment, after receiving NACK, SPS(semi-persistent scheduling) -liked scheme can be used by UE so that multiple TBs can be transmitted.
  • SPS(semi-persistent scheduling) -liked scheme can be used by UE so that multiple TBs can be transmitted.
  • the RRR, or called the scheduling request can be on part of the reserved resource for PRACH.
  • the eNB detects it is different from the normal PRACH and gives a larger UL grant than the ordinary UL grant for PRACH in the response signal. For eNB, it will consider the BSR or DV report in scheduling request for transport block size in UL grant. The eNB further considers the CSI in the scheduling request for MCS in UL grant.
  • the reserved bit in MSG2 can be used for UL grant of MSG3, for UE to choose the reserved part of resource of PRACH to read the reserved resource.
  • the “resource reservation request” includes an identity (e.g., UE ID (40bits) , or RNTI (16bits) , or a random ID selected by UE) , where the UE identity is used for eNB 202 to know which UE is sending message.
  • Msg 3 is 88 bits, including: resume ID, Est Cause, short MAC-I, DCI (mac) , MAC spare, PHR, MAC overhead, RRC overhead, RRC spare.
  • DVI is the data volume in MSG3 indicates the amount of user data (including SMS) and NAS signalling data volume sent over user plane or control plane.
  • the DVI field is in MAC.
  • the 88bits of message 3 is the only TB size that is assumed, when specifying support for UL CCCH.
  • the multi-tone capability bit should be interpreted as an IOT bit (inter operability test) .
  • FIG. 4 illustrates an exemplary flow diagram for contention-based resource reservation with UE sending UL message on selected resources directly in accordance with embodiments of the current invention.
  • a UE 401 is in the connected mode or IDLE mode in a wireless network with an eNB 402.
  • UE 401 transmits an UL message to eNB 402.
  • UE 401 transmits the UL message with the resource reservation without any request.
  • UE 401 may transmit more than one transport blocks on the reserved resource once or several times in step 411.
  • UE 401 may send a resource release message in the UL message at step 411.
  • eNB 402 sends an ACK /NACK to UE 401.
  • the reserved resources can be for one or multiple UEs.
  • the UL message at step acts as a reservation request message without embedding the actual request in the UL transmission.
  • the eNB reserves resource for the UE for further transmission.
  • eNB 402 After decoding the UL message on the reserved resource, eNB 402 expects one or more UL transmission on a corresponding UL data transmission resource. No explicit UL grant is required.
  • the UL transmission can be contention free.
  • eNB 402 may transmit an ACK or NACK signal to UE to trigger a retransmission or new transmission.
  • UE 401 sends UL data to eNB 402 on the reserved resource.
  • the UL message can include a sequence.
  • the sequence can further be used by eNB for channel estimation, to detect any requests from UEs. Moreover, the eNB upon detecting the sequence can determine if there are more than one UE requests for this resource.
  • the eNB sends ACK/NACK signal based on the detection.
  • the eNB may be able to detect the sequence on a UL resource, but fails to decode an UL message. The eNB sends an NACK signal to trigger an retransmission of the UL message.
  • the UL message further includes one or more of the following information: BSR, FH pattern (frequency resource allocation in each subframe) , the start subframe, the end subframe, number of repetition, scrambling sequence, codebook index, and spreading code.
  • the UL message includes UE request to eNB for all the information for following uplink data transmission without waiting for explicit grant from the eNB.
  • the UL message at step 411 includes all data for the transmission.
  • a success transmission of step 411 UL message ends the process without step 413.
  • the end subframe may be learned by eNB by receiving an “end transmission indicator. ”
  • the end subframe is not necessary if a field indicating how many packets need to be transmitted is signaled by UE in step 411.
  • the reservation resources could be localized or distributed with FH.
  • the distributed resource is called separated resource. There is no need for contention expected during the UL data transmission from other UE.
  • the relationship between the reservation resource and the resource for response signal are mapped by predefined rules. In one embodiment, there is a binding relationship between the reservation resource and the resource for response signal, such as, a one-to-one mapping.
  • the UE can use a combination of UL message with or without RRR in different steps, such as for transmission and/or retransmission.
  • Figure 5 illustrates exemplary diagrams for resource pool and resource sub-pool for the contention-based UL resource reservation in accordance with embodiments of the current invention.
  • Figure 5 illustrates a resource block diagram 500, a resource pool 510, and a resource sub-pool 520.
  • Resource block diagram 500 illustrates different frequency hopping patterns are used to form resource blocks.
  • Resource block 511 includes different resources in the frequency-time domain.
  • resource blocks 512, 513, 514, and 515 all have resources in the frequency-time domain.
  • resource blocks 511, 512, 513, 514, and 515 forms resource pool 510.
  • UE can select a resource block from resource pool 510 for its UL message to perform the contention based resource reservation procedure.
  • Resource sub-pool 520 includes a resource sub-pool 521, a resource sub-pool 522, and a resource sub-pool 523.
  • Resource sub-pool 521 includes resource blocks 511 and 513.
  • Resource sub-pool 522 includes resource blocks 512 and 515.
  • Resource sub-pool 523 includes resource blocks 514.
  • the UE selects a resource from a resource pool.
  • the resource pool is pre-known to the UE.
  • the configuration of the resource pool is broadcasted in the system information, indicating by SIB information or other RRC message.
  • the resource pool may be related to a cell ID, a UE ID, a subframe number, or a frame number.
  • the resource pool can be indicated to the UE explicitly or implicitly.
  • the resource can be separated or shared. If separated, the resource can have 1-on-1 mapping.
  • Resource pool 520 further includes several sub-pools 521, 522, and 523.
  • the division of resource sub-pools can be based on different coverage class/level, different channel status class/level, or the RSRP.
  • the resource pool may comprise one or more resources including time/frequency resource (one subcarrier is a special case) , spreading code, scrambling code, codebook.
  • the resource pool may be based on frequency hopping, and different sub-pools are divided based on different FH patterns or different frequency allocation. Based on the different requirements, different UEs could choose different reservation resources from the resource pool.
  • the eNB can configure one or more RSRP threshold for UE to select resource from different sub-pools. Since different UEs select in the same resource pool, the UL message is contention based.
  • the response signal could be transmitted in the RS_MAP field of MAC header.
  • the overhead for decoding of UE or transmitting for eNB is low.
  • the corresponding resource used for the response signal associated with the RRR can be scheduled by the eNB to other UEs for scheduling based UL transmission.
  • the utilization of UL resource is improved since the resource reserved for RRR is much smaller than the one for contention based UL message with large payload.
  • different FH patterns are used for different UEs.
  • the FH patterns are based on Orthogonality /Auto-correlation/Cross-correlation of UEs.
  • the FH pattern could be hard coded.
  • the available hopping pattern indices are broadcasted in the MAC layer (header, MAC CE) or RRC.
  • the UE obtains the FH pattern from broadcasting information and randomly chooses one from the FH pattern pool.
  • the UE acquires or reacquires the system information before UL data transmission.
  • the eNB semi-statically configures FH patterns and informs UEs.
  • the eNB determines the FH pattern based on UE’s channel quality. Similar to the generation of LTE preambles, FH pattern is generated according to a sequence. The UE randomly inputs parameters to generate the FH pattern. In yet another embodiment, FH pattern (FH pattern index) is assigned to each UE after the UE is RRC connected with network, so that the eNB can identify a UE through the used hopping pattern.
  • Figure 6 illustrates exemplary diagrams for resource allocation for RRR, response signal, and UL data transmission in accordance with embodiments of the current invention.
  • the UE sends a RRR in the resource 601.
  • the UE receives a response signal from the eNB/base station in resource 602.
  • the UE transmits the UL messages in resource block 603, 604...610.
  • the mapping relationship between resources 601 for RRR, 602 for the response signal and 603, 604 to 610 the UL message are binding together based on one more predefined rules.
  • Figure 7 illustrates exemplary diagrams for resource allocation for RRR, response signal, and UL data transmission in contention based mapping and resource reservation in accordance with embodiments of the current invention.
  • the UE sends a RRR on resource 710 or 720. If a response signal is received that is authorization, UE transmit UL message later in latter subframe (s) on corresponding resource 711 or 721 respectively.
  • Resources 711 and 721 maps to resources 710 or 720 correspondingly.
  • the corresponding resources are the same in different subframes as 711.
  • the corresponding resources are different (with frequency hopping) in different subframes such as resource block 721.
  • FIG. 8 illustrates exemplary diagram for resource mapping using DCI configuration in accordance with embodiments of the current invention.
  • a resource 800 includes multiple resource blocks configured for the UE for UL transmission, including resource blocks 801, 802, and 803.
  • the reservation resource for UL message is one-to-one mapping to the resource for ACK/NACK.
  • the ACK/NACK for multiple reservation resources are transmitted together.
  • a special DCI format 810 is used for ACK/NACK of contention based UL message.
  • the bits in DCI are 1-on-1 mapping to the resources of UL message.
  • the 3 bits are mapped to resources 801, 802, and 803 respectively.
  • the RNTI for the special DCI is cell-specific.
  • the allocation of reservation resources could further be coverage level/channel condition specific, for example, if the reservation resources used for UL message for different coverage level or channel condition are different.
  • Each reservation resource may have one RNTI.
  • the DL control channel configuration is related to different coverage level. For example, in NB-IoT, the maximum repetition number of NPDCCH (Rmax) is PRACH level specific. The same RNTI can be used but the detection of downlink control channel could be under different configurations.
  • Figure 9 illustrates exemplary diagram for resource mapping using DCI and UE identification configuration in accordance with embodiments of the current invention.
  • a resource 900 include multiple resource blocks configured for the UE for UL transmission, including resource blocks 901, 902, and 903.
  • a DL message can contain at least one ACK/NACK response to at least one UL message. Within the DL message, several feedbacks can be transmitted. The one-to-one mapping between the reservation resources for UL message and resource for response signal is also suitable in this case.
  • a DCI 910 and UE ID 920 are included in the response. Since more than one bit can be transmitted within the case, the different values could represent different meaning. For example, “0” may represent NACK, or there is UE colliding.
  • a new MAC CE could be introduced to indicate the meaning of “0. ”
  • eNB can tell the collided UEs to use separate resources if the UL message contains UE ID 920. For ACK or NACK but no collision UE, one bit is enough for UEs to know the decoding status at eNB side.
  • Another field on DL message may contains UE IDs if eNB successfully decoded more than one UE UL message at the same resource.
  • eNB is able to detect one or more UE transmitted UL message by detecting reference signal (e.g., sounding reference signal, UL demodulation reference, preamble) , which has 1-on-1 mapping to the resource for RRR or UL message. Therefore, eNB is able to send a NACK signal based on the detected signals to the UE (s) who transmitted UL message or RRR on the corresponding UL resource.
  • reference signal e.g., sounding reference signal, UL demodulation reference, preamble
  • Figure 10 illustrates exemplary diagram for resource mapping using DL resource assignment in accordance with embodiments of the current invention.
  • a resource 1000 include multiple resource blocks configured for the UE for UL transmission, including resource blocks 1001, 1002, and 1003.
  • a DL resource 1010 include multiple resource blocks configured for the UE for UL transmission, including resource blocks 1011, 1012, and 1013. Multiple ACK/NACK signals are transmitted separated.
  • a link downlink physical channel physical hybrid-arq indicator channel (PHICH) can be introduced as resource for response signal.
  • the PHICH resource is 1-on-1 mapping to reservation resources used for UL message.
  • the UE may transmit multiple TBs, e.g., each TB in on one subframe, and expect ACK/NACK from eNB for each TB.
  • UE may transmit a new data and flush the buffer; if UE receives NACK, UE may retransmit the data in the buffer again without flushing. In this case, no DTX is expected since the resource is reserved by the UE. On the other word, eNB will expect UE to transmit a signal on the reserved resource. UE may report how many TBs, or how large a TB is to transmit to eNB so that eNB and UE share the same understanding on how long the transmission is lasting. For MTC/NB-IoT/mMTC device, UE may only transmitted one TB since one subframe may only carry one bit.
  • UE may report the TB size to eNB in the UL message for the TB size and/or modulation order and code rate.
  • HARQ can also be supported.
  • Figures 8, 9, and 10 are described as each bit used for one UE, but the format for ACK/NACK could be different, and used for different purpose.
  • eNB does not find the associated preamble in the associated reservation resource, eNB determines there is no transmission request in the reservation resource, so eNB ignore the information in the reservation resource, or responds NACK. If eNB finds the associated preamble in the associated reservation resource, but it cannot decode the information correctly, it could determine error, so responds NACK to UE, to inform UE that, I Know you have transmitted information in the reservation resource, but I have not decoded information correctly, so please retransmit the UL data, and in meanwhile, eNB stores the information in a buffer, jointly decodes the information in the buffer and the next retransmission the next time.
  • the NACK signal could be zero, or other value when the NACK signal has multiple bits. Since multiple UEs could choose the same reservation resource, so the transmission is contention based, and if the multiple UEs are non-orthogonal, or time division, or code division, or with different time offset, the eNB could successfully receive and decode the UL data from different UEs in the same reservation resources under some conditions.
  • UE could retransmit the same UL date after a fixed time, which could be called a synchronous retransmission way, and the UE could hold the UL data, and retransmit the same UL data after the UE receiving indication for retransmission from eNB, which could be called a non-synchronous retransmission way.
  • Figure 11 illustrates exemplary diagrams for power control for UL non-orthogonal multiple access (NOMA) in accordance with embodiments of the current invention.
  • a wireless network has multiple UEs, include UE 1101 and UE 1102.
  • Resource block 1103 belongs to resource 1100.
  • UE 1101 and UE 1102 both select resource block 1103 for uplink transmission.
  • UE 1101 obtains RSRP and path-loss value and calculates a target power value 1111.
  • UE 1102 obtains RSRP and path-loss value and calculates a target power value 1121.
  • the power difference 1131 between 1111 and 1112 is small.
  • a power-offset value is generated by the UE and applied to the target power value.
  • UE 1101 generates a power-offset value 1112 and applies it to get its transmitting power value.
  • UE 1102 generates a power-offset value 1122 and applies it to get its transmitting power value.
  • the power difference 1132 after applying the power-offset is increased.
  • UL NOMA is proposed to improve spectral efficiency in the embodiments of this invention, for example, Multi-user shared access (MUSA) , Resource spread multiple access (RSMA) , Sparse code multiple access (SCMA) , Pattern defined multiple access (PDMA) , Non-orthogonal coded multiple access (NOMA) , Low code rate spreading, Frequency domain spreading, Non-orthogonal multiple access (NOMA) .
  • MUSA Multi-user shared access
  • RSMA Resource spread multiple access
  • SCMA Sparse code multiple access
  • PDMA Pattern defined multiple access
  • NOMA Non-orthogonal coded multiple access
  • Low code rate spreading Frequency domain spreading
  • NOMA Non-orthogonal multiple access
  • Some of the techniques need interference cancelation, e.g., SIC (Successive Interference Cancellation) , which may be benefit from power difference.
  • the receiver of power domain multiple access special case of NOMA decodes UE with higher power first and then cancel the UE with higher
  • UE measures DL signals and obtain path loss (e.g., RSRP) ; UE calculate transmit power based on path loss, target power (the target power in configured by eNB, e.g., in SIB) and a power offset (the random power offset is configured by eNB, e.g., in SIB) .
  • the UE transmits UL message (preamble, UL traffic) on selected UL resource with the transmit power.
  • the power offset for UE 1101 and UE 1102 is random chosen from a discrete value set, such as, [-3dB, 3dB] , or [-2dB, -1dB, 0dB, 1dB, 2dB] .
  • the value can be configured by eNB.
  • the values sets are per UL resource configured.
  • the value sets are cell-specific.
  • the random power offset is generated with a distribution, such as the uniform distribution within [-2dB, 2dB] . The random power offset can be turn off by eNB.
  • the path loss needs max Tx power, it could also adopt to a random power offset, but only has minus values or zero with in the offset, such as, [-2dB, -1dB, 0dB] .
  • the random power offset could be only added for the case with power ramping (that is, not max Tx power case) .
  • the received signal power density has very little chance to be the same.
  • the receiver can use the power different caused by path loss.
  • the power offset is calculated based on a pre-defined rule such as a UE ID, RNTI, or other UE-specific /group-specific configuration. The above method can also be adopted to other non-orthogonal multiple access which could benefit from power different.
  • Figure 12 illustrates an exemplary flow chart for the contention-based UL resource reservation in accordance with embodiment of the current invention.
  • the UE selects a resource block from a resource pool in a wireless communication network.
  • the UE sends an uplink message based on the selected resource block by the UE to a base station, wherein the uplink message indicates an uplink reservation for corresponding uplink resources associated with selected resource block.
  • the UE receives a response signal from the base station in response to the uplink message, wherein a positive response signal indicates a success reservation of the corresponding uplink resources.
  • the UE transmits uplink data on the corresponding uplink resources upon receiving the positive response signal.
  • FIG. 13 illustrates an exemplary flow chart for power control for UL non-orthogonal multiple access in accordance with embodiment of the current invention.
  • at least two UE are using the resource based RRR (RR) request to access the system.
  • the first UE measures downlink signals and obtaining a path loss in a wireless network.
  • the first UE selects a power offset from a configured power offset pool.
  • the first UE calculates a transmit power based on the path loss, a target power and the selected power offset, wherein the target power is configured by a network entity of the wireless network.
  • the first UE transmits an uplink message with the calculated transmit power.
  • the second UE uses different power offset to transmit another uplink message with the calculated transmit power, so eNB could decode the two UE on the same resource successfully.
  • the resource could be time/frequency/code book index/scrambling sequence/interleaver/spreading code.
  • the chance for two UEs choose the same resource is If m power offset if introduced, the collision possibility is further reduced to Compared with dividing one resource pool into several subsets. This method creates power domain to distinguish UEs.
  • a CDMA system may implement a radio technology such as Universal Terrestrial Radio Access (UTRA) , cdma2000, etc.
  • UTRA includes Time Division Synchronous Code Division Multiple Access (TD-SCDMA) , Wideband-CDMA (W-CDMA) and other variants of CDMA.
  • a TDMA system may implement a radio technology such as Global System for Mobile Communications (GSM) .
  • GSM Global System for Mobile Communications
  • An OFDMA system may implement a radio technology such as Evolved UTRA (E-UTRA) , Ultra Mobile Broadband (UMB) , IEEE 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20, etc.
  • E-UTRA and E-UTRA are part of Universal Mobile Telecommunication System (UMTS) .
  • 3GPP Long Term Evolution (LTE) is a release of UMTS that uses E-UTRA, which employs OFDMA on the downlink and SC-FDMA on the uplink.
  • UTRA, E-UTRA, UMTS, TD-SCDMA, LTE and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP) .
  • wireless communication systems may additionally include peer-to-peer (e.g., mobile-to-mobile) ad hoc network systems often using unpaired unlicensed spectrums, 802. xx wireless LAN, BLUETOOTH and any other short-or long-range, wireless communication techniques.
  • peer-to-peer e.g., mobile-to-mobile
  • 802. xx wireless LAN 802. xx wireless LAN
  • BLUETOOTH any other short-or long-range, wireless communication techniques.
  • the above embodiments could be used in 5G system, especially NR (new radio) system, and the system uses beamforming or narrowband, and the evoled release.
  • the evolved release of narrow band system comprises evolved release of NB-IoT system.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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Abstract

L'invention concerne des procédés et un appareil de réservation de ressource d'UL basée sur la contention et une commande de puissance pour un accès multiple non orthogonal d'UL. Selon un aspect innovant, l'UE sélectionne un bloc de ressources à partir d'un groupe de ressources, envoie un message de liaison montante en fonction du bloc de ressources sélectionné demandant une réservation de ressource avec ou sans demande de ressource de réservation (RRR), et reçoit un signal de réponse indiquant la réussite de la réservation de ressources. Dans un mode de réalisation, le groupe de ressources est associé à une ou plusieurs identifications comprenant un ID de cellule, un ID d'UE, un numéro de sous-trame et un numéro de trame, et l'UE dérivant le groupe de ressources en fonction de la ou des identifications. Selon un autre aspect innovant, l'UE sélectionne un décalage de puissance à partir d'un groupe de décalages de puissance configuré et calcule une puissance de transmission en fonction de l'affaiblissement de propagation, d'une puissance cible et du décalage de puissance sélectionné.
PCT/CN2017/096639 2016-08-12 2017-08-09 Procédés et appareil de transmission de données d'ul WO2018028604A1 (fr)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111315017A (zh) * 2020-01-06 2020-06-19 新疆大学 一种基于scma系统节能的资源分配方法
CN112753271A (zh) * 2018-09-28 2021-05-04 苹果公司 用于上行链路传输的预配置共享资源

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3966975A4 (fr) * 2019-05-05 2023-03-08 Lenovo (Beijing) Limited Accusé de réception de paquet de données de liaison latérale
CN116996194A (zh) * 2019-08-07 2023-11-03 中兴通讯股份有限公司 资源指示方法、数据接收方法、通信装置及存储介质
CN111510259B (zh) * 2020-03-19 2021-07-13 西安电子科技大学 一种基于超可靠低时延通信和noma技术的新型重传方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102158981A (zh) * 2010-02-11 2011-08-17 中兴通讯股份有限公司 一种基于竞争的上行数据传输方法和系统
CN104335665A (zh) * 2012-06-08 2015-02-04 诺基亚通信公司 分帧的通信系统中的无线电资源预留
CN104869527A (zh) * 2015-04-10 2015-08-26 电信科学技术研究院 一种进行数据传输的方法和设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2392574A1 (fr) * 2002-07-08 2004-01-08 Anthony Gerkis Systeme, appareil et methode pour l'attribution de ressources de liaison montante
CN101472343B (zh) * 2007-12-26 2010-11-03 鼎桥通信技术有限公司 一种随机接入方法及系统
WO2012150883A1 (fr) * 2011-05-05 2012-11-08 Telefonaktiebolaget L M Ericsson (Publ) Procédés et agencements pour adapter une attribution de ressources d'accès aléatoire à des équipements utilisateurs
CN104981022B (zh) * 2014-04-04 2020-07-10 北京三星通信技术研究有限公司 数据传输的方法、基站及终端

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102158981A (zh) * 2010-02-11 2011-08-17 中兴通讯股份有限公司 一种基于竞争的上行数据传输方法和系统
CN104335665A (zh) * 2012-06-08 2015-02-04 诺基亚通信公司 分帧的通信系统中的无线电资源预留
CN104869527A (zh) * 2015-04-10 2015-08-26 电信科学技术研究院 一种进行数据传输的方法和设备

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112753271A (zh) * 2018-09-28 2021-05-04 苹果公司 用于上行链路传输的预配置共享资源
CN111315017A (zh) * 2020-01-06 2020-06-19 新疆大学 一种基于scma系统节能的资源分配方法

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