WO2017132788A1 - Procédé de planification de liaison montante, équipement utilisateur, et station de base - Google Patents

Procédé de planification de liaison montante, équipement utilisateur, et station de base Download PDF

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Publication number
WO2017132788A1
WO2017132788A1 PCT/CN2016/073033 CN2016073033W WO2017132788A1 WO 2017132788 A1 WO2017132788 A1 WO 2017132788A1 CN 2016073033 W CN2016073033 W CN 2016073033W WO 2017132788 A1 WO2017132788 A1 WO 2017132788A1
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WIPO (PCT)
Prior art keywords
resource
base station
message
uplink data
harq
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PCT/CN2016/073033
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English (en)
Chinese (zh)
Inventor
焦淑蓉
花梦
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2016/073033 priority Critical patent/WO2017132788A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, a user equipment, and a base station for uplink scheduling in the field of communications.
  • the time required for the user equipment (User Equipment, referred to as "UE") in the uplink scheduling process can be divided into the following types: (1) for sending a scheduling request ("Scheduling Request" ("SR")
  • SR scheduling request
  • the period of the physical uplink control channel includes 1 millisecond (ms), 2ms, 5ms, 10ms, 20ms, 40ms, and 80ms; (2) the base station decodes the SR and generates the uplink grant (Grant The time is 3 TTIs (for example, 3 ms); (3) the processing delay and the Buffer Status Report (BSR) preparation time after the UE receives the uplink Grant is 3 TTIs (for example, 3 ms); (4) The time when the base station decodes the BSR and generates the uplink Grant is 3 TTIs (for example, 3 ms); (5) the processing delay and the preparation time of the uplink data after the UE receives the uplink Grant is 3 T
  • the uplink scheduling process is very wasteful for a small data packet service, only the transmission of the SR and the BSR occupies most of the entire data transmission process. Therefore, the uplink scheduling process is performed. It is necessary to optimize to shorten the end-to-end delay.
  • the embodiment of the present invention provides a method for uplink scheduling, a user equipment, and a base station, so as to solve the problem that the delay caused by the uplink scheduling process is too long.
  • a method for uplink scheduling including:
  • the user equipment UE determines a scheduling request SR resource configured by the base station for the UE and an auxiliary resource corresponding to the SR resource, where the auxiliary resource is different from the orthogonal sequence used by the SR resource, and other resources are the same, and the other resources include At least one of time, frequency, cyclic shift sequence, and cyclic shift value;
  • the UE selects one of the SR resource and the auxiliary resource as a sending resource according to status information of the uplink data to be sent;
  • the UE sends an SR message to the base station on the sending resource.
  • the uplink scheduling method in the embodiment of the present invention optimizes the uplink scheduling process by utilizing the auxiliary resources corresponding to the SR resources, thereby shortening the delay in the uplink scheduling process.
  • the status information includes at least one of a size of the uplink data, a delay requirement value of the uplink data, type information of the uplink data, and priority information of the uplink data.
  • the status information may further include other status information, and the UE may select, according to the different status information, whether to send an SR message to the base station on the SR resource or the auxiliary resource, so that the base station is configured according to the base station.
  • the requirement of the uplink data allocates a suitable resource for transmitting uplink data to the user equipment.
  • the status information includes: a size relationship between the uplink data and a buffer threshold;
  • the UE selects one of the SR resource and the auxiliary resource as the sending resource according to the status information of the uplink data to be sent, and includes:
  • the UE selects the SR resource as the sending resource
  • the UE selects the auxiliary resource as the sending resource.
  • the UE may also select the auxiliary resource as a sending resource if the uplink data is greater than the buffer threshold, and send the SR message to the base station, where the uplink data is smaller than the cache.
  • the SR resource is selected as a transmission resource, and the SR message is sent to the base station.
  • the method further includes:
  • the UE sends a buffer status report BSR message to the base station according to the Grant message, where the BSR message is used by the base station to allocate the UE for sending The resources of the upstream data;
  • the UE sends the uplink data to the base station according to the Grant message.
  • the UE sends an SR message to the base station by using the auxiliary resource, and the UE needs to send the base station to the base station after receiving the Grant message.
  • Sending a BSR message if the UE is configured to send an SR message to the base station by using the SR resource, the UE may directly send the SR message to the base station after receiving the Grant message. Send upstream data.
  • the method further includes:
  • the UE sends the BSR message to the base station according to the Grant message, where the BSR message is used by the base station to allocate for the UE. a resource for transmitting the uplink data;
  • the UE sends the uplink data to the base station according to the Grant message.
  • the status information includes a delay request value and a delay threshold of the uplink data. Size relationship
  • the UE selects one of the SR resource and the auxiliary resource as the sending resource according to the status information of the uplink data to be sent, and includes:
  • the UE selects the SR resource as the sending resource;
  • the UE selects the auxiliary resource as the sending resource.
  • the UE may also select the auxiliary resource as the sending resource, and send an SR message to the base station; if the uplink data to be sent is The delay request value is less than the delay threshold, and the UE may also select the SR resource as a transmission resource, and send an SR message to the base station.
  • the method further includes:
  • the UE sends the uplink data to the base station on a first transmission time interval TTI resource configured by the base station for the UE according to the Grant message;
  • the UE sends the uplink data to the base station on the second TTI resource according to the Grant message, where the length of the second TTI resource is smaller than the first TTI. The length of the resource.
  • the UE sends an SR message to the base station by using an auxiliary resource of the SR resource, where the UE is in the first TTI. Sending an SR message to the base station on the resource; if the UE sends an SR message to the base station on the SR resource, if the delay requirement value of the uplink data to be sent is less than the delay threshold, then the UE is Sending an SR message to the base station on the second TTI resource.
  • the method further includes:
  • the UE sends the uplink data to the base station on the first TTI resource according to the Grant message;
  • the UE sends the uplink data to the base station on the second TTI resource according to the Grant message, where the The length of the two TTI resources is smaller than the length of the first TTI resource.
  • the UE may further determine a priority of the uplink data to be sent. If the uplink data has a low priority, the UE selects the SR resource as a sending resource, and sends the SR to the base station. a message; if the uplink data has a high priority, the UE selects the auxiliary resource as a transmission resource to send the SR message to the base station.
  • the orthogonal sequence of the ancillary resources or the ancillary resources is applied to a time unit selected by the UE in a plurality of time units.
  • the time unit is a subframe
  • the N value may be specified by the protocol or sent by the base station, and the m may be sent by the base station or generated by the user equipment according to its own ID by using a predetermined rule.
  • the multiple SR resources are grouped into groups according to the K resources, and the method further includes:
  • the kth SR resource in each group is the SR resource, and corresponding to the orthogonal sequence of the auxiliary resource or the auxiliary resource, where K is a natural number greater than 1, and the k is 1 to The natural number between K-1.
  • the K may be determined by the protocol or sent by the base station, and may be sent by the base station or generated by the user equipment according to its own ID by using a predetermined rule.
  • a method for uplink scheduling including:
  • the user equipment UE determines a hybrid automatic retransmission acknowledgement HARQ-ACK resource configured by the base station for the UE and an auxiliary resource corresponding to the HARQ-ACK resource, where the secondary resource is different from the orthogonal sequence used by the HARQ-ACK resource and Other resources are the same, and the other resources include at least one of time, frequency, cyclic shift sequence, and cyclic shift value;
  • the UE sends a scheduling request SR message and a HARQ-ACK message to the base station on the HARQ-ACK resource or the auxiliary resource.
  • the uplink scheduling method in the embodiment of the present invention optimizes the uplink scheduling process by utilizing the auxiliary resources corresponding to the HARQ-ACK resource, thereby shortening the delay in the uplink scheduling process.
  • the user equipment UE determines, by the base station, the hybrid automatic retransmission acknowledgement HARQ-ACK resource configured by the base station and the auxiliary resource corresponding to the HARQ-ACK resource, which may include:
  • the UE determines, according to the SR message to be sent, whether to send the SR message and the HARQ-ACK message to the base station on the HARQ-ACK resource or the auxiliary resource.
  • the UE sends an SR message and a HARQ-ACK message to the base station, including the HARQ-ACK resource or the auxiliary resource, including :
  • the UE sends the HARQ-ACK message and the negative SR message to the base station on the HARQ-ACK resource;
  • the UE sends the HARQ-ACK message and the determined SR message to the base station on the auxiliary resource.
  • the UE may also send the HARQ-ACK message and the negative SR message to the base station on the auxiliary resource, and send the HARQ to the base station on the HARQ-ACK resource.
  • - ACK message and the determined SR message may also be sent to the base station on the auxiliary resource.
  • a method for uplink scheduling including:
  • the base station configures, for the user equipment UE, a scheduling request SR resource and an auxiliary resource corresponding to the SR resource, where the auxiliary resource is different from the orthogonal sequence used by the SR resource, and other resources are the same, and the other resources include time, frequency, and cycle. At least one of a shift sequence and a cyclic shift value;
  • the base station receives an SR message sent by the UE on the SR resource or the auxiliary resource.
  • the uplink scheduling method in the embodiment of the present invention optimizes the uplink scheduling process by utilizing the auxiliary resources corresponding to the SR resources, thereby shortening the delay in the uplink scheduling process.
  • the method further includes:
  • the base station determines that the uplink data to be sent by the UE is greater than a buffer threshold; if the SR message is received on the auxiliary resource, the base station determines The uplink data to be sent by the UE is smaller than the buffer threshold.
  • the base station determines that the uplink data is greater than the buffer threshold; if the UE sends the foregoing to the base station on the SR resource if the uplink data is smaller than the buffer threshold.
  • the SR message when the base station receives the SR message on the SR resource, the base station determines that the uplink data is smaller than the buffer threshold.
  • the method further includes:
  • the base station receives a send buffer status report BSR message sent by the UE according to the indication of the Grant message, and allocates an appropriate one for the UE according to the BSR message. a resource for transmitting the uplink data;
  • the base station receives the uplink data that is sent by the UE according to the indication of the Grant message.
  • the UE sends an SR message to the base station by using the auxiliary resource when the data to be sent is greater than the buffer threshold
  • the base station receives the SR message sent by the UE on the auxiliary resource, Sending a Grant message to the UE to indicate that the UE sends a BSR message to the base station
  • the UE sends an SR message to the base station by using the SR resource when the data to be transmitted is smaller than the buffer threshold if the base station When receiving an SR message sent by the UE on the SR resource, sending a Grant message to the UE to indicate that the UE can be straight And transmitting uplink data to the base station.
  • the method further includes:
  • the base station determines that a delay request value of the uplink data to be sent by the UE is greater than a delay threshold
  • the base station determines that a delay request value of the uplink data to be sent by the UE is smaller than the delay threshold.
  • the UE sends an SR message to the base station 20 on the secondary resource when the delay requirement value of the uplink data to be sent is greater than the delay threshold
  • the delay request value of the uplink data to be sent is determined to be greater than the delay threshold; if the UE requires the delay value of the uplink data to be sent to be less than the delay threshold, the SR message is sent to the base station 20 on the SR resource. Then, after the base station receives the SR message on the SR resource, determining that the delay request value of the uplink data to be sent is less than a delay threshold.
  • the method further includes:
  • the base station configures, for the UE, a first transmission time interval TTI resource for sending the uplink data, and is in the first TTI resource. Receiving, on the uplink data sent by the UE;
  • the base station configures, for the UE, a second TTI resource for sending the uplink data, and receives the second TTI resource on the second TTI resource.
  • the uplink data sent by the UE where the length of the second TTI resource is smaller than the length of the first TTI resource.
  • the delay requirement value of the uplink data to be sent by the UE is greater than a delay threshold
  • the resource sends a Grant message to the UE to instruct the UE to send uplink data to the base station on the first TTI resource; instead, if the uplink data to be sent is delayed
  • the base station receives the SR message sent by the UE on the SR resource, and the base station sends a Grant message to the UE to indicate that the UE is located on the second TTI resource.
  • the base station transmits the uplink data.
  • the base station may further determine, according to different resources that receive the SR message, a priority level of the uplink data or a type of the uplink data, so as to allocate an appropriate The resource used to send upstream data. For example, if the SR message is received on the SR resource, the base station may determine that the uplink data to be sent by the UE has a low priority; if the SR message is received on the auxiliary resource, The base station may determine that the uplink data to be sent by the UE has a high priority.
  • the orthogonal sequence of the ancillary resources or the ancillary resources is applied to a time unit selected by the UE in a plurality of time units.
  • the time unit is a subframe
  • the N value may be specified by the protocol or sent by the base station, and the m may be sent by the base station or generated by the user equipment according to its own ID by using a predetermined rule.
  • the multiple SR resources are grouped into groups according to the K resources, and the method further includes:
  • the base station Determining, by the base station, that the kth SR resource in each group is the SR resource, and corresponding to the orthogonal sequence of the auxiliary resource or the auxiliary resource, where K is a natural number greater than 1, and the k is 1 to The natural number between K-1.
  • the K may be determined by the protocol or sent by the base station, and may be sent by the base station or generated by the user equipment according to its own ID by using a predetermined rule.
  • a method for uplink scheduling including:
  • the base station configures a hybrid automatic retransmission acknowledgement HARQ-ACK resource and an auxiliary resource corresponding to the HARQ-ACK resource, where the secondary resource is different from the orthogonal sequence used by the HARQ-ACK resource, and the other resources are the same.
  • the other resources include at least one of time, frequency, cyclic shift sequence, and cyclic shift value;
  • the base station receives, on the HARQ-ACK resource or the auxiliary resource, a scheduling request SR message and a HARQ-ACK message sent by the UE.
  • the method further includes:
  • the base station receives the HARQ-ACK message sent by the UE on the HARQ-ACK resource, determining that the UE sends the HARQ-ACK message and the negative SR message;
  • the uplink scheduling method in the embodiment of the present invention optimizes the uplink scheduling process by utilizing the auxiliary resources corresponding to the HARQ-ACK resource, thereby shortening the delay in the uplink scheduling process.
  • the base station may also send the HARQ-ACK message and the negative SR message to the UE on the auxiliary resource, and receive, by using the HARQ-ACK resource, the location sent by the UE.
  • the HARQ-ACK message and the determined SR message are described.
  • the fifth aspect provides a user equipment, which is used to perform the method in any of the foregoing first aspect or the first aspect, including a sending module, a receiving module, a determining module, and a selecting module, where the determining module is used by the determining module to:
  • a scheduling request SR resource configured by the base station and an auxiliary resource corresponding to the SR resource, where the auxiliary resource is different from the orthogonal sequence used by the SR resource, and other resources are the same, and the other resources include time and frequency.
  • the selecting module is configured to select one of the SR resource and the auxiliary resource as a sending resource according to status information of uplink data to be sent;
  • the sending module is configured to send an SR message to the base station on the sending resource selected by the selecting module.
  • the user equipment can also be used to perform the method of any of the above-mentioned second aspect or any of the possible implementations of the second aspect, wherein the determining module is configured to:
  • the base station Determining, by the base station, a hybrid automatic retransmission acknowledgement HARQ-ACK resource configured by the base station and an auxiliary resource corresponding to the HARQ-ACK resource, where the secondary resource is different from the orthogonal sequence used by the HARQ-ACK resource, and other resources are the same
  • the other resources include at least one of a time, a frequency, a cyclic shift sequence, and a cyclic shift value;
  • the sending module is configured to send, to the base station, a scheduling request SR message and a HARQ-ACK message on the HARQ-ACK resource or the auxiliary resource determined by the determining module.
  • the user equipment optimizes the uplink scheduling process by using the auxiliary resource corresponding to the SR resource and the auxiliary resource corresponding to the HARQ-ACK resource, thereby shortening the delay in the uplink scheduling process.
  • a base station for performing any of the above third aspect or third aspect
  • the method in a possible implementation manner includes a receiving module, a sending module, a configuration module, and a determining module, where the configuration module is used to:
  • auxiliary resource is different from the orthogonal sequence used by the SR resource, and other resources are the same, and the other resources include time, frequency, and cyclic shift At least one of a bit sequence and a cyclic shift value;
  • the receiving module is configured to receive an SR message sent by the UE on the SR resource or the auxiliary resource configured by the configuration module.
  • the base station can also be used to perform the method in any of the foregoing possible implementations of the fourth aspect or the fourth aspect, wherein the configuration module is configured to:
  • a hybrid automatic retransmission acknowledgement HARQ-ACK resource and an auxiliary resource corresponding to the HARQ-ACK resource where the secondary resource is different from the orthogonal sequence used by the HARQ-ACK resource, and other resources are the same,
  • Other resources include at least one of time, frequency, cyclic shift sequence, and cyclic shift value;
  • the receiving module is configured to receive, according to the HARQ-ACK resource and the auxiliary resource configured by the configuration module, a scheduling request SR message and a HARQ-ACK message sent by the UE.
  • the base station utilizes the auxiliary resources corresponding to the SR resources and the auxiliary resources corresponding to the HARQ-ACK resources, and optimizes the process of the uplink scheduling, thereby shortening the delay in the uplink scheduling process.
  • a user equipment for performing the method of any of the above first aspect or any of the possible implementations of the first aspect, the user equipment comprising a processor, a memory, a receiver, and a transmitter, the memory And an instruction for storing an uplink resource, where the processor is configured to execute the instruction stored by the memory, and is driven by the instruction to perform the following scheduling work:
  • a scheduling request SR resource configured by the base station and an auxiliary resource corresponding to the SR resource, where the auxiliary resource is different from the orthogonal sequence used by the SR resource, and other resources are the same, and the other resources include time and frequency.
  • the UE selects one of the SR resource and the auxiliary resource as a sending resource according to status information of the uplink data to be sent;
  • the transmitter is configured to send an SR message to the base station on the sending resource selected by the processor.
  • the user equipment can also be used to perform any of the possible aspects of the second aspect or the second aspect described above.
  • the method of the present mode wherein the processor is configured to:
  • the base station Determining, by the base station, a hybrid automatic retransmission acknowledgement HARQ-ACK resource configured by the base station and an auxiliary resource corresponding to the HARQ-ACK resource, where the secondary resource is different from the orthogonal sequence used by the HARQ-ACK resource, and other resources are the same
  • the other resources include at least one of a time, a frequency, a cyclic shift sequence, and a cyclic shift value;
  • the transmitter is configured to send, to the base station, a scheduling request SR message and a HARQ-ACK message on the HARQ-ACK resource or the auxiliary resource determined by the processor.
  • the user equipment optimizes the uplink scheduling process by using the auxiliary resource corresponding to the SR resource and the auxiliary resource corresponding to the HARQ-ACK resource, thereby shortening the delay in the uplink scheduling process.
  • a base station for performing the method of any of the foregoing third aspect or any of the possible implementations of the third aspect, the base station comprising a memory, a transmitter, a receiver, and a processor, the memory being used for Storing an instruction for scheduling an uplink resource, the processor is configured to execute the instruction stored by the memory, and is driven by the instruction to perform the following scheduling work:
  • auxiliary resource is different from the orthogonal sequence used by the SR resource, and other resources are the same, and the other resources include time, frequency, and cyclic shift At least one of a bit sequence and a cyclic shift value;
  • the receiver is configured to receive an SR message sent by the UE on the SR resource or the auxiliary resource determined by the processor.
  • the base station can also be used to perform the method in any of the possible implementations of the fourth aspect or the fourth aspect, wherein the processor is configured to:
  • a hybrid automatic retransmission acknowledgement HARQ-ACK resource and an auxiliary resource corresponding to the HARQ-ACK resource where the secondary resource is different from the orthogonal sequence used by the HARQ-ACK resource, and other resources are the same,
  • Other resources include at least one of time, frequency, cyclic shift sequence, and cyclic shift value;
  • the receiver is configured to receive, according to the HARQ-ACK resource and the auxiliary resource determined by the processor, a scheduling request SR message and a HARQ-ACK message sent by the UE.
  • the base station shortens the end-to-end delay by receiving the upper SR message and the HARQ-ACK message sent by the user equipment on the auxiliary resource corresponding to the SR resource and the auxiliary resource corresponding to the HARQ-ACK resource.
  • a computer readable medium for storing a computer program the calculation The machine program includes any of the possible implementations of the first aspect or the first aspect, the second aspect or any of the possible implementations of the second aspect, any of the third aspect or the third aspect And the instructions of the method in any one of the possible implementations of the fourth aspect or the fourth aspect.
  • FIG. 1 is a schematic structural diagram of an application scenario according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 4 is a process interaction diagram of uplink scheduling according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a frame structure of an LTE communication system.
  • FIG. 6 is a schematic diagram showing the structure of uplink and downlink time-frequency resources of an LTE communication system.
  • Figure 7 is a schematic diagram of feedback delay in a UMTS system.
  • Figure 8 is a block diagram showing the structure of a single symbol TTI system.
  • Figure 9 is a schematic diagram of the case of SR and HARQ-ACK multiplexing.
  • FIG. 10 is a map of PUCCH format 1/1a/1b when a normal CP is used.
  • FIG. 11 is a flow interaction diagram of a method for uplink scheduling according to an embodiment of the present invention.
  • FIG. 12 is a flow diagram of a process of an uplink scheduling method according to another embodiment of the present invention.
  • FIG. 13 is a structural block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 14 is a structural block diagram of a base station according to an embodiment of the present invention.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • a user equipment may be referred to as a terminal, a mobile station (Mobile Station, MS for short), or a mobile terminal (Mobile Terminal).
  • the user equipment can communicate with one or more core networks via a Radio Access Network (RAN), for example, the user equipment can be a mobile phone (or "cellular" phone) or a computer with a mobile terminal.
  • RAN Radio Access Network
  • the user device can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges voice and/or data with the wireless access network.
  • the base station may be a base station (Base Transceiver Station, abbreviated as "BTS”) in GSM or CDMA, or may be a base station (NodeB, referred to as "NB") in WCDMA, or may be in LTE.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • the present invention is not limited to an evolved base station (Evolutional Node B, referred to as "eNB or e-NodeB"). However, for convenience of description, the following embodiments will be described by taking an eNB as an example.
  • FIG. 1 is a schematic structural diagram of an application scenario according to an embodiment of the present invention.
  • the basic network architecture of the LTE communication system may include a base station (eNodeB) 20 and at least one wireless terminal, such as UE 10, UE 11, UE 12, UE 13, UE 14, UE 15, UE 16, and UE 17 .
  • the eNodeB 20 is configured to provide communication services for at least one of the UE 10 to the UE 17 and access the core network. Any one of the UE 10 to the UE 17 and the eNodeB 20 may include at least one antenna, and FIG. 1 is described by taking multiple antennas as an example.
  • FIG. 2 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • the UE 10 is taken as an example for description.
  • the transceiver 110 and the modulator 120 included in the UE 10 are shown in FIG. Demodulator 130, processor 140 and memory 150.
  • the transceiver may include a receiver 111 and a transmitter 112 for receiving and transmitting signals.
  • the memory 150 is used to store instructions.
  • the processor 140 may include a receive data processor 141, a controller 142, and a transmit data processor 143 for executing instructions stored by the memory 150 and performing a series of communication operations driven by the instructions.
  • the modulator 120 and the demodulator 130 function to modulate the transmission signal from the processor 140 and transmit it on the antenna (transmission channel), and demodulate the air interface reception signal to the processor 140 of the back end for communication protocol. Processing (receiving channel).
  • the process of the UE 10 performing the uplink scheduling is as follows.
  • the process of the UE 10 transmitting a signal on the physical uplink control channel (PUCCH) is: the processor 140 generates a PUCCH signal, and the base station 20 is the UE 10.
  • the allocated physical resources place the PUCCH signal on the corresponding physical resource, then perform signal modulation in the modulator 130, and finally transmit to the base station 20 through the transmitter 112 in the transceiver 110.
  • the processor 140, the memory 150, the receiver 111 and the transmitter 112, and the bus system may be implemented by one or more chips.
  • the processor 140, the memory 150, the receiver 111, the transmitter 112, the modulator 120, the demodulator 130, and the bus system may be fully integrated in one chip, or the processor 140, the receiver 111, the transmitter 112, and the modulation
  • the processor 120, the demodulator 130 and the bus system can be integrated in one chip and the memory 150 is integrated in another chip, and the specific form is not limited herein.
  • FIG. 3 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • the base station 20 is taken as an example.
  • FIG. 3 shows a transceiver 210, a demodulator 220, a modulator 230, and a processor included in the base station 20.
  • 240 and memory 250 The transceiver may include a transmitter 211 and a receiver 212 for receiving and transmitting signals.
  • the memory 250 is used to store instructions.
  • the processor 240 can include a transmit data processor 241, a controller 242, and a receive data processor 243 for executing instructions stored by the memory 250 and executing a series of communication operations driven by the instructions.
  • the functions of the demodulator 220 and the modulator 230 are respectively to modulate the transmission signal from the processor 240 and transmit it on the antenna (transmission channel), and demodulate the air interface reception signal to the processor 240 of the back end for communication protocol. Processing (receiving channel).
  • the process of receiving the PUCCH signal by the base station is: the processor 240 allocates a suitable physical resource to the UE 10, and receives, by the transceiver 210, the PUCCH signal sent by the UE 10 on the corresponding physical resource.
  • Signal demodulation is then performed in demodulator 230 and signal analysis is performed in processor 240.
  • the processor 240, the memory 250, the receiver 212 and the transmitter 211, and the bus system may be implemented by one or more chips.
  • the modulator 220, the demodulator 230, and the bus system may be fully integrated in one chip, or the processor 240, the receiver 212, the transmitter 211, the modulator 220, the demodulator 230, and the bus system may be integrated in one chip.
  • the memory 250 is integrated in another chip, and the specific form is not limited herein.
  • FIG. 4 is a process interaction diagram of uplink scheduling according to an embodiment of the present invention.
  • the UE 10, the eNodeB 20, the Core Network ("CN") 30, and the Application Server 40 are shown in FIG.
  • the SR/BSR-based uplink scheduling process is as follows:
  • the UE 10 creates data and packages the data.
  • the UE 10 sends a Scheduling Request (SSR) message to the eNodeB 20.
  • SSR Scheduling Request
  • the SR message only contains 1 bit of information, and is used to notify the eNodeB 20 that it has uplink data to be sent.
  • the eNodeB 20 sends a Grant (Grant) message to the UE 10.
  • the Grant message is used to allocate the uplink resource to the UE 10.
  • the uplink resource is used by the UE 10 to send buffer information, that is, a Buffer Statue Report (BSR) message.
  • BSR Buffer Statue Report
  • the UE 10 sends a BSR message and partial data to the eNodeB 20.
  • the UE 10 sends a BSR message to the eNodeB 20 by using the uplink resource indicated in the Grant message in 403 to inform the eNodeB 20 of the size of its own uplink data to be transmitted. If the uplink resource is still available at this time, the UE 10 may also send part of the uplink data while transmitting the BSR message.
  • the eNodeB 20 transmits the data to the CN 30 and is sent by the CN 30 to the application server 40.
  • the base station sends a Grant message to the UE 10 according to the BSR information reported by the UE 10.
  • the eNodeB 20 learns the size of the uplink data to be sent by the UE 10 according to the BSR message sent by the UE 10, so as to continue to allocate suitable uplink resources for the UE 10.
  • the UE 10 sends the packetized uplink data to the eNodeB 20 on the corresponding uplink resource according to the newly received Grant message.
  • the eNodeB 20 sends the uplink data to the CN 30, and sends it to the application server 40 by the CN 30.
  • the base station eNodeB 20 may continue to send a Grant to the user, and repeatedly perform 406 to 408 to allocate more uplink resources to the user until the user's All data is sent.
  • the embodiment of the present invention provides a method for uplink scheduling, which utilizes redundant code channels in uplink resources allocated by the base station to the user equipment, optimizes the process of uplink scheduling, and shortens the delay in the uplink scheduling process.
  • FIG. 6 is a schematic diagram showing the structure of uplink and downlink time-frequency resources of an LTE communication system.
  • each time slot is included in the time domain.
  • Orthogonal Frequency Division Multiplexing (“OFDM") symbols including in the frequency domain Physical Resource Block ("PRB").
  • PRB Physical Resource Block
  • Each PRB is included in the frequency domain Subcarriers.
  • Different working bandwidths are implemented by configuring different numbers of PRBs. For example, when the bandwidth is 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz, 20MHz, the number of PRBs is 6, 15, 25, 50, respectively. 75, 100.
  • Number of OFDM symbols The value is related to the type of Cyclic Prefix ("CP").
  • CP Cyclic Prefix
  • the LTE TDD system supports two CP types: normal CP and extended CP. Table 1 shows the relationship between the time-frequency resource configuration parameters and the CP type.
  • a Transmission Time Interval occupies a number of OFDM symbols, which are used to transmit one of the above physical resource blocks.
  • TTI Transmission Time Interval
  • all OFDM symbols in one TTI need to be collected to perform demodulation and decoding operations, and corresponding Acknowledge ("ACK") feedback and possible retransmission must also be performed in the complete TTI.
  • ACK Acknowledge
  • the TTI is the minimum data transfer time that the wireless link can demodulate.
  • the UE 10 receives a high speed physical downlink shared channel (High Speed-Physical Downlink Shared The channel (referred to as "PDSCH”) signal is demodulated and decoded, and then the Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) is fed back to the base station 20; the base station 20 receives the HARQ sent by the UE 10. -ACK to determine if a retransmission or a new transmission is to be made.
  • PDSCH Physical Downlink shared channel
  • HARQ-ACK Hybrid Automatic Repeat Request Acknowledgement
  • FIG. 7 is a schematic diagram of feedback delay in a UMTS system.
  • FIG. 7 includes the UE 10 transmitting control information on a High-Speed Shared Control Channel (HS-SCCH), and a High-Speed Physical Downlink Shared Channel (PDSCH).
  • HS-SCCH High-Speed Shared Control Channel
  • PDSCH High-Speed Physical Downlink Shared Channel
  • the transmission of the data, and the subframe diagram of the UE 10 feeding back the ACK message on the Physical Downlink Control Channel (“HS-PDCCH”) it can be seen that the earliest retransmission time corresponding to the subframe 0 It is subframe 6, that is, UE 10 can only retransmit after waiting for subframe 6, which is mainly limited by the demodulation decoding time, TTI length and subframe structure of UE 10.
  • the timing in the LTE system is also similar.
  • One TTI in the UMTS system is 2 ms, and one TTI in the LTE system is 1 ms.
  • the frame structure of the legacy LTE can be used to maintain the original OFDM symbol and reduce the number of OFDM symbols in each TTI, that is, the short TTI system.
  • Figure 8 is a block diagram showing the structure of a single symbol TTI system. Each OFDM symbol in FIG. 8 is only 1/14 ms, and a Round-Trip Time (“RTT”) is 8 OFDM symbols (about 600 ms), which can satisfy a low latency target with a delay of less than 1 ms.
  • RTT Round-Trip Time
  • the SR channel or the HARQ-ACK message is transmitted by using the redundant code channel of the Physical Uplink Control Channel (PUCCH) in the LTE system, thereby shortening the uplink scheduling process. Delay.
  • PUCCH Physical Uplink Control Channel
  • a PUCCH is used to transmit uplink control information (such as SR, HARQ-ACK, Channel State Information (CSI), etc.), and the PUCCH can be subdivided into a plurality of formats. As shown in Table 2, there are four formats. According to the PUCCH format shown in Table 2, PUCCH format 1 is specifically used to send SRs, and carries information patterns and negative acknowledgements (Negative Acknowledge, referred to as “NACK”. The information pattern is consistent; the last type (1b with channel selection) is used for carrier aggregation (Carrier Aggregation ("CA"); and PUCCH format 1a and 1b are used for simultaneous transmission of SR and HARQ-ACK.
  • uplink control information such as SR, HARQ-ACK, Channel State Information (CSI), etc.
  • Table 2 there are four formats. According to the PUCCH format shown in Table 2, PUCCH format 1 is specifically used to send SRs, and carries information patterns and negative acknowledgements (Negative Acknowledge, referred to as “
  • LTE is the two letters.
  • the information is sent together, and different SR and HARQ-ACK information combinations are distinguished by different physical resources and different information patterns. Among them, Binary Phase Shift Keying ("BPSK”) and Quadrature Phase Shift Keying (QPSK) are two different digital modulation methods. The specific case of SR and HARQ-ACK transmission is described in conjunction with FIG.
  • BPSK Binary Phase Shift Keying
  • QPSK Quadrature Phase Shift Keying
  • Figure 9 is a schematic diagram of the case of SR and HARQ-ACK multiplexing.
  • the UE 10 may only send the SR on the SR resource, and the base station 20 considers that the UE 10 sends the SR if the signal is detected on the resource;
  • the frame is configured with both the SR resource and the HARQ-ACK resource, indicating that there must be a HARQ-ACK to be sent at this time, and the UE 10 transmits the HARQ-ACK information on the HARQ-ACK resource when the UE 10 does not need to transmit, when the UE 10 has The UE 10 transmits HARQ-ACK information on the SR resource when the SR needs to be transmitted.
  • the base station 20 can detect the combination of information of the SR and the HARQ-ACK.
  • the base station 20 configures the SR resource for the UE 10 by using Radio Resource Control (RRC) signaling, which is a semi-static configuration, and the base station 20 can periodically configure the UE 10 for the need.
  • RRC Radio Resource Control
  • the HARQ-ACK resource configured by the base station 20 for the user equipment 10 may be dynamically scheduled and semi-statically configured. If the HARQ-ACK is corresponding to dynamically scheduled downlink data, the HARQ-ACK resource is passed.
  • the downlink control signaling at the time of the dynamic scheduling is notified to the user equipment 10; if the HARQ-ACK is the downlink data corresponding to the semi-persistent scheduling, the HARQ-ACK resource is also configured according to the RRC signaling.
  • Sending an SR or HARQ-ACK on PUCCH format 1 occupies one PRB pair, and a predetermined pattern of frequency hopping is also performed in two slots of the same subframe.
  • PUCCH format 1 requires only one OFDM symbol to be transmitted, and the OFMD symbol is multiplied by a reference signal sequence of length 12, corresponding to 12 subcarriers in the frequency domain.
  • different cyclic shifts of the same reference signal sequence can achieve resource multiplexing for different users.
  • the reference signal sequence can also be different (from the perspective of the protocol, the network can pass parameters)
  • To configure which reference signal sequence to use that is, different users in the same cell may use different reference signal sequences at the same time, but different reference signal sequences are related, not completely Orthogonal. In the following description, it is assumed that the reference signal sequences used by different users are the same on the same PRB.
  • the Orthogonal Complementary Code is also used for each OFDM symbol in the sequence of length 12. "
  • Spreading is performed, corresponding to the OFDM symbols used for PUCCH transmission on each slot.
  • the OCC code length is 4.
  • SRS Sounding Reference Signal
  • FIG. 10 is a mapping diagram of PUCCH format 1/1a/1b when a normal CP is used.
  • a reference signal Reference Signal
  • RS Reference Signal
  • RS is a long 12 reference signal sequence that is also spread over the OCC code and then mapped to the OFDM symbols for the RS for each slot.
  • the OCC code length is 3; when the extended CP is used, there are two OFDM symbols for each slot for transmitting the uplink RS, that is, OCC.
  • the code length is 2.
  • the PUCCH format 1 user equipment that can be multiplexed in each PRB is at most the total number of cyclic shifts *max (the information part OCC code length, and the OCC code length of the RS) ).
  • the OCC code length of the RS is less than or equal to the information part OCC code length, that is, the number of PUCCH format 1 user equipments that can be multiplexed in each RB is limited by the RS. Therefore, the OCC code for the information part given in the current protocol has only three sequences regardless of the code length of 4 or the code length of 3.
  • Table 3 and Table 4 show an OCC code sequence of code length 4 and an OCC code sequence of code length 3, respectively.
  • the base station 20 configures the UE 10 with two sets of resources.
  • the two sets of resources of the same user refer to the information part and the RS. Two sets of resources are used, and the two sets of resources are distinguished by one of the PRB position, the different cyclic shift of the reference signal sequence, and the OCC code.
  • the remaining OCC code with the code length of 4 can be used. Because there is no need to distinguish between RSs for the same user device.
  • the PRB resource of the SR is configured by the high layer signaling and is fixed; and the resource of the HARQ-ACK is calculated by using the location of the first Control Channel Element (CCE) of the corresponding PUCCH. Out, that is, it can be flexibly scheduled.
  • CCE Control Channel Element
  • the frequency of one subcarrier in the time domain is one OFDM symbol, which is called a resource element (Resource Element, referred to as “RE”), and each consecutive 4 REs is called a resource element group (Resource Element Group, referred to as “REG” for short). ), every 9 REGs is called 1 CCE.
  • RE resource element
  • REG resource element group
  • every 9 REGs is called 1 CCE.
  • the embodiment of the present invention optimizes the process of uplink scheduling by utilizing the redundant code channel of the PUCCH, thereby shortening the delay in the uplink scheduling process.
  • FIG. 11 is a flow interaction diagram of a method for uplink scheduling according to an embodiment of the present invention. As shown in FIG. 11, the specific process of the uplink scheduling includes:
  • the base station 20 configures a HARQ-ACK resource and the HARQ-ACK resource pair for the UE 10. affiliated resources.
  • the processor 240 of the base station 20 configures the SR resource and the HARQ-ACK resource for transmitting the scheduling request SR message and the hybrid automatic retransmission acknowledgement HARQ-ACK message for the UE 10, and is configured with the HARQ-ACK resource corresponding thereto.
  • An adjunct resource that allows the UE 10 to send an SR message and a HARQ-ACK message on the adjunct resource.
  • the auxiliary resource here refers to the remaining OCC code track when the code length is 4, that is, the OCC redundant code channel corresponding to the HARQ-ACK resource.
  • the UE 10 may combine the uplink scheduling environment according to the provisions between the base station 20 and the base station 20. Actually, selecting and determining to use different resources, so as to send a scheduling message that needs to be sent on different uplink resources, the processor 240 of the base station 20 determines the scheduling information sent by the UE 10 according to the information detected on different channel resources. . Since the reserved OCC code channel is also utilized, that is, the auxiliary resource transmits the SR message and the HARQ-ACK message, the delay in the uplink scheduling process can be shortened.
  • the auxiliary resource is different from the orthogonal sequence used by the HARQ-ACK resource and the other resources are the same.
  • the other resources described herein include at least one of a time, a frequency, a cyclic shift sequence, and a cyclic shift value.
  • the UE 10 sends an SR message and a HARQ-ACK message to the base station 20 on the HARQ-ACK resource or the corresponding auxiliary resource configured by the base station 20.
  • One of the existing uplink access schemes is the configuration period of the SR resources.
  • the minimum period of the SR resource configuration is 1 ms, the minimum period configuration ensures that the UE 10 can always have SR resources, but from the perspective of the network. This is a big waste because the UE 10 does not need to send SR messages every time.
  • the configuration of the SR resources to a minimum period means that many PUCCH format 1 resources are not used. Therefore, for a user equipment having such a low latency requirement, the base station may allow the UE to use the reserved OCC code channel resource to transmit the SR when configuring the HARQ-ACK resource.
  • the transmitter 112 of the UE 10 may transmit different scheduling information to the base station 20 on different uplink resources according to the following description rules, which may be a protocol between the UE 10 and the base station 20 and mutually obeyed.
  • the UE 10 when the SR message and the HARQ-ACK message are simultaneously sent, and the base station 20 configures the HARQ-ACK resource and its corresponding auxiliary resource for the UE 10, and the SR resource is not configured, the UE 10 follows the The following rules send an SR message to the base station 20 and HARQ-ACK message:
  • the UE 10 transmits a HARQ-ACK message and a negative SR message to the base station 20, the UE 10 transmits a HARQ-ACK message and a negative SR message to the base station 20 on the HARQ-ACK resource;
  • the UE 10 transmits a HARQ-ACK message and a determined SR message to the base station 20
  • the UE 10 transmits a HARQ-ACK message and a determined SR message to the base station 20 on the second attached resource.
  • the negative SR message sent by the UE 10 to the base station 20 is used to inform the base station 20 that the UE 10 has no data to send to the base station 20; and the determined SR message sent by the UE 10 to the base station 20 is used to inform the base station 20, The UE 10 subsequently has uplink data to be sent.
  • the base station 20 when the base station 20 receives the HARQ-ACK message sent by the UE 10 on the HARQ-ACK resource, it may be determined that the UE 10 transmits the HARQ-ACK message and the negative SR message; when the base station 20 receives the UE on the attached resource 10 When the HARQ-ACK message is sent, it may be determined that the UE 10 sends a HARQ-ACK message and a negative SR message.
  • the UE 10 may also send the HARQ-ACK message and the negative SR message to the base station 20 on the affiliation resource; send the HARQ-ACK message to the base station 20 on the HARQ-ACK resource and The determined SR message.
  • the UE 10 uses the SR resource to send an SR message to the base station 20.
  • the base station 20 When the base station 20 simultaneously configures the SR resource and the HARQ-ACK resource for the UE 10, if the UE 10 needs to send the HARQ-ACK message and the negative SR message, the UE 10 transmits the HARQ-ACK message to the base station 20 on the HARQ-ACK resource. And a negative SR message; if the UE 10 needs to send the HARQ-ACK message and the determined SR message, the UE 10 sends the HARQ-ACK message and the determined SR message to the base station 20 on the SR resource, and the resource utilization manner of the specific sending process.
  • the base station can distinguish the combination of different SR messages and HARQ-ACK messages by detecting information received on different physical resources and different information patterns, so as to subsequently configure the UE 10 with suitable resources for transmitting uplink data.
  • the UE 10 may also send the HARQ-ACK message and the negative SR message to the base station 20 in the accessory resource. And transmitting a HARQ-ACK message and the determined SR message to the base station 20 on the HARQ-ACK resource.
  • the uplink scheduling method in the embodiment of the present invention is attached to the HARQ-ACK resource.
  • the resources are utilized to optimize the process of uplink scheduling and shorten the delay in the uplink scheduling process.
  • FIG. 12 is a flow diagram of a process of an uplink scheduling method according to another embodiment of the present invention. As shown in FIG. 12, the specific process of the uplink scheduling includes:
  • the base station 20 configures the SR resource and the auxiliary resource corresponding to the SR resource for the UE 10.
  • the processor 240 of the base station 20 configures the SR resource for transmitting the scheduling request SR message for the UE 10, and configures an auxiliary resource corresponding to the SR resource for the UE 10 to allow the UE 10 to send an SR message on the auxiliary resource.
  • the subsidiary resource refers to an OCC redundant code channel corresponding to the SR resource.
  • the receiver 212 of the base station 20 receives the scheduling request message, and detects according to different channel resources.
  • the information determines the scheduling information sent by the UE 10. Since the reserved OCC code channel is also utilized, that is, the auxiliary resource sends the SR message, the delay in the uplink scheduling process can be shortened.
  • the auxiliary resource is different from the orthogonal sequence used by the SR resource and the other resources are the same.
  • the other resources described herein include at least one of a time, a frequency, a cyclic shift sequence, and a cyclic shift value.
  • the UE 10 determines status information of uplink data to be sent.
  • the status information may include a size of the uplink data or a delay requirement value of the uplink data.
  • the processor 140 of the UE 10 may set a buffer threshold, and by comparing the size of the uplink data and the buffer threshold, determine whether the transmitter 112 of the UE 10 transmits an SR message to the base station 20 on the SR resource or its subsidiary resource; the processor 140 of the UE 10 A delay threshold may also be set to determine whether to send an SR message to the base station 20 on the SR resource or its subsidiary resource by comparing the delay requirement value with the size of the delay threshold.
  • the UE 10 sends an SR message to the base station 20 on the SR resource configured by the base station 20 or its corresponding accessory resource.
  • the UE 10 determines a size relationship between the uplink data and the buffer threshold. If the uplink data to be sent is greater than the buffer threshold, the UE 10 selects the SR resource as the sending resource, and sends the SR resource to the base station 20 on the SR resource. If the uplink data to be sent is smaller than the buffer threshold, the UE 10 selects an auxiliary resource corresponding to the SR resource as a transmission resource, and sends an SR message to the base station 20 on the auxiliary resource.
  • the processor 240 corresponding to the base station 20 configures two resources for the UE 10, that is, the SR resource and the auxiliary resource corresponding to the SR resource, because the UE 10 is here.
  • the cache state introduces a cache threshold that corresponds to a cache size. If the data to be transmitted of the UE 10 is greater than the buffer threshold, the transmitter 12 of the UE 10 transmits the SR message to the base station 20 by using the SR resource; if the data to be transmitted of the UE 10 is smaller than the buffer threshold, the transmitter 12 of the UE 10 uses the attached resource to The base station 20 transmits an SR message.
  • the UE 10 may also send an SR message to the base station 20 by using an auxiliary resource; when the data to be transmitted is smaller than the buffer threshold, the UE 10 may also use the SR resource to the base station 20.
  • the SR message is sent, and the present invention does not limit the use of the affiliate resource.
  • the UE 10 determines the relationship between the delay requirement value of the uplink data and the delay threshold. If the delay requirement value of the uplink data to be sent is greater than the delay threshold, the UE 10 selects the SR resource as the Sending a resource, and sending an SR message to the base station 20 on the SR resource; if the delay request value of the uplink data to be sent is less than the delay threshold, the UE 10 selects the auxiliary resource corresponding to the SR resource as the transmission resource, and sends the uplink resource to the base station. 20 sends an SR message.
  • the processor 240 of the base station 20 configures two resources for the UE 10, that is, an SR resource and an auxiliary resource corresponding to the SR resource.
  • the data delay of the UE 10 may be introduced with a delay threshold, where the delay threshold corresponds to a delay, and the delay requirement of the data to be sent by the UE 10 is greater than the delay.
  • the transmitter 12 of the UE 10 transmits the SR message to the base station 20 by using the SR resource; when the delay requirement of the data to be transmitted of the UE 10 is less than the delay threshold, the transmitter 12 of the UE 10 uses the auxiliary resource.
  • the SR message is sent to the base station 20.
  • the UE 10 may also send the SR message to the base station 20 on the affiliation resource; when the delay request value of the uplink data to be sent is less than the delay threshold The UE 10 may also send an SR message to the base station 20 on the SR resource, and the present invention does not limit the use of the auxiliary resource.
  • the cache threshold and the delay threshold may be specified by a high layer signaling configuration or protocol.
  • the status information may further include other priority information, such as priority information of the uplink data to be sent, type information of the uplink data, and the like, and the UE 10 may, according to the different status information, on the SR resource or its subsidiary resources.
  • the base station 20 transmits an SR message to cause the base station 20 to The requirement of the uplink data allocates suitable resources for transmitting uplink data to the UE 10.
  • the UE 10 may determine the priority of the uplink data; if the uplink data has a low priority, the UE 10 sends an SR message to the base station 20 on the SR resource; if the uplink data has a high priority, the UE 10 is in the subsidiary resource.
  • the SR message is sent to the base station 20.
  • the base station 20 sends a first permission Grant message to the UE 10.
  • the base station 20 After receiving the SR message sent by the UE 10, the base station 20 sends a first Grant message to the UE 10, so that the UE 10 can perform a subsequent uplink scheduling process according to the first Grant message.
  • Another optimization direction of the uplink scheduling process is to carry part of the BSR information in the SR, so that the base station directly schedules the user equipment to send uplink data, simplifying the process, and the optimization is performed for users with low delay small data packets. It is very important.
  • the UE 10 if the SR message is sent on the SR resource, and the UE 10 receives the first permission Grant message sent by the base station 20, the UE 10 sends a buffer status report BSR message to the base station 20, so that the base station 20 After receiving the BSR message, the UE 10 allocates resources for transmitting uplink data, that is, performs 1205, 1206, and 1207; if the SR message is sent on the attached resource, the UE 10 receives the first Grant message sent by the base station 20 The uplink data can be directly sent to the base station 20, that is, directly executed 1207.
  • the UE 10 sends a buffer status report BSR message to the base station 20.
  • the processor 240 of the base station 20 allocates resources for transmitting the uplink data to the UE 10 according to the BSR message.
  • the base station 20 sends a second Grant message to the UE 10.
  • the UE 10 sends uplink data to the base station 20 according to the second Grant message.
  • the receiver 212 of the base station 20 After receiving the SR message sent by the transmitter 112 of the UE 10, the receiver 212 of the base station 20 returns a first Grant message to the UE 10. After the receiver 212 of the UE 10 receives the first Grant message, the UE 10 sends the message. The 211 may subsequently directly send a BSR message (corresponding to 1205) or uplink data (corresponding to 1207) to the base station 20.
  • the processor 140 of the UE 10 determines, in 1202, the size relationship between the uplink data to be sent and the buffer threshold, and determines whether to send the SR message to the base station 20 on the SR resource or the auxiliary resource according to the size relationship, so that the base station 20 can be
  • the different resources used by the SR message are sent to determine whether the transmitter 112 of the UE 10 subsequently needs to send a buffer status report BSR message to the base station 20.
  • the UE 10 can guarantee that it is transmitted at a time, and thus avoids the transmission of the BSR message. Therefore, if the transmitter 112 of the UE 10 is on the attached resource to the base station When the SR message is sent, the size of the uplink data is smaller than the buffer threshold.
  • the receiver 111 of the base station 20 After receiving the SR message, the receiver 111 of the base station 20 sends a first Grant message to the UE 10, and the receiver 111 of the UE 10 receives the first Grant. After the message, the transmitter 112 of the UE 10 can directly send the uplink data to be sent to the base station 20.
  • the size of the uplink data is greater than the buffer threshold.
  • the transmitter 112 of the UE 10 sends an SR message to the base station 20 on the SR resource, the size of the uplink data is greater than the buffer threshold.
  • the transmitter 112 of the UE 10 The BSR message may be sent to the base station 20 according to the conventional procedure.
  • the transmitter 211 of the base station 20 sends a second Grant message to the UE 10 to allocate suitable uplink resources to the UE 10.
  • the receiver 111 of the UE 10 receives the second Grant message and transmits the data to be transmitted on the corresponding physical resource according to the second Grant message.
  • the BSR message is sent to the base station 20 by using the resource to inform the base station 20 of the size of the uplink data to be sent, so that the base station subsequently sends a second Grant message to the UE 10 to allocate the resource for transmitting the uplink data to the UE 10.
  • the UE 10 may also send an SR message to the base station 20 by using the SR resource, and then the uplink data is indicated when the UE 10 sends the SR message to the base station 20 on the SR resource.
  • the uplink data may be directly sent to the base station 20; if the UE 10 may send the SR message to the base station 20 by using the accessory resource of the SR resource when the data to be transmitted of the UE 10 is greater than the buffer threshold, then When the UE 10 sends an SR message to the base station 20 on the secondary resource of the SR resource, it indicates that the size of the uplink data is greater than the buffer threshold, and the BSR message needs to be sent to the base station 20.
  • the foregoing description of the UE 10 determines whether to send a BSR message to the base station 20 according to the different resources used by the UE to send the SR message. Similarly, the base station 20 may also determine whether the UE 10 needs to send the buffer according to different resources used for receiving the SR message. Status reports BSR messages.
  • the base station 20 determines, according to different resources used by the SR message sent by the UE 10, the size relationship between the uplink data to be sent by the UE 10 and the buffer threshold, and sends the relationship to the UE 10 according to the size relationship.
  • the first Grant message is used to indicate whether the UE 10 sends a BSR message or directly sends uplink data.
  • the processor 240 of the base station 20 may determine that the uplink data to be sent by the UE 10 is large.
  • the threshold is buffered, so that the UE 10 sends a buffer status report BSR message by using the first Grant message, so that the UE 10 is subsequently allocated resources for transmitting uplink data according to the BSR message; when the receiver 212 of the base station 20 is on the attached resource.
  • the processor 240 of the base station 20 may determine that the size of the uplink data to be sent by the UE 10 is smaller than the buffer threshold, so that the UE 10 directly transmits the uplink data by using the first Grant message.
  • the receiver 111 of the UE 10 can perform a BSR message transmission to the base station 20 or an uplink data directly according to the received indication of the first Grant message.
  • the UE uses the accessory resource to send the SR message to the base station, when the base station 20 receives the SR message sent by the UE 10 on the accessory resource, it sends the message to the UE 10.
  • the Grant message indicates that the UE 10 sends a BSR message to the base station 20; instead, if the UE 10's data to be transmitted is smaller than the buffer threshold, the UE 10 uses the SR resource to send the SR message to the base station 20, then when the base station 20 is on the SR resource Upon receiving the SR message sent by the UE 10, the Grant message is sent to the UE 10 to indicate that the UE 10 can directly send the uplink data to the base station 20.
  • the correspondence between the state information of the data to be transmitted and the used SR resource or the auxiliary resource may be determined by the UE 10 and the base station 20.
  • the present invention does not limit this. As long as the UE 10 and the base station 20 perform the uplink scheduling process according to the protocol.
  • the base station 20 may also instruct the UE 10 to perform a subsequent transmission process according to the actual resource usage.
  • the base station does not necessarily perform the uplink scheduling procedure desired by the UE, for example, when the uplink data is smaller than the buffer threshold, the base station 20
  • the UE 10 may also be instructed to allocate a resource for transmitting uplink data after transmitting the BSR message.
  • the base station 20 instructs the UE 10 to send the BSR message or the uplink data, and may indicate whether the UE 10 sends the BSR message or directly sends the uplink data by adding the indication information to the Grant message.
  • the base station 20 may directly request the short TTI uplink resource to send the SR message to reduce the data end-to-end. Delay.
  • the UE 10 sends the uplink data to the base station on the first TTI resource configured by the base station 20; The message is sent on the attached resource, and the UE 10 is based on the first Grant. And transmitting uplink data to the base station 20 on the second TTI resource, where the length of the second TTI resource is smaller than the length of the first TTI resource.
  • the processor 240 of the base station 20 can serve the UE 10 in the following two manners.
  • the processor 240 of the base station 20 may configure the uplink resource (ie, the first TTI resource) of the traditional TTI in the prior art for the UE 10, or configure the uplink resource (ie, the second TTI resource) of the short TTI for the UE 10. .
  • the transmitter 211 of the base station 20 informs the UE 10 by sending a first Grant message to the UE 10.
  • the receiver 111 of the UE 10 needs to parse the first Grant message.
  • the specific information is used to determine whether the uplink data is sent to the base station 20 by using the first TTI uplink resource or the second TTI uplink resource.
  • the processor 240 of the base station 20 may also configure only the short TTI uplink resource (ie, the second TTI resource) for the UE 10, and then the transmitter 112 of the base station 20 sends the first Grant message to the UE 10 to notify the UE 10, at this time.
  • the receiver 212 of the UE 10 directly transmits the uplink data to the base station 20 by using the second TTI resource after receiving the first Grant message sent by the transmitter 211 of the base station 20.
  • the base station 20 can directly configure the first TTI resource for the UE 10 and send the first Grant message to the UE 10, and the UE 10 After receiving the first Grant message, the uplink data is directly sent on the first TTI resource.
  • the delay requirement value of the uplink data to be transmitted by the UE 10 is greater than the delay threshold, if the UE 10 sends the SR message to the base station 20 by using the accessory resource, the UE 10 sends the SR message to the base station 20 on the attached resource.
  • the UE 10 sends an SR message to the base station 20 on the first TTI resource.
  • the UE 10 determines whether the delay requirement value of the uplink data to be sent is less than the delay threshold.
  • the foregoing description of the UE 10 determines whether to send uplink data to the base station 20 on the first TTI resource or the second TTI resource according to the different resources used by the UE to send the SR message. Similarly, the base station 20 may also use different resources according to the received SR message. And determining whether the UE 10 transmits the uplink data to the base station 20 on the first TTI resource or the second TTI resource.
  • the base station 20 determines, according to different resources used by the SR message sent by the UE 10, the uplink data delay request value and the delay threshold of the UE 10 to be sent. A size relationship, and sending a first Grant message to the UE 10 according to the size relationship.
  • the processor 240 of the base station 20 may determine that the delay request value of the uplink data to be sent by the UE 10 is greater than The threshold is extended to configure the first TTI resource for the UE 10, and the first Grant message is used to indicate that the UE 10 sends uplink data on the first TTI resource; when the processor 240 of the base station 20 receives the auxiliary resource of the SR resource, When the SR message is sent by the transmitter 112 of the UE 10, the processor 240 of the base station 20 may determine that the delay request value of the uplink data to be sent by the UE 10 is less than a delay threshold, thereby configuring the UE 10 with the second TTI resource, and A Grant message instructs the UE 10 to send uplink data on the second TTI resource.
  • the UE 10 may perform uplink data transmission to the base station 20 on the first TTI resource or the second TTI resource according to the received indication
  • the delay requirement value of the uplink data to be transmitted by the UE 10 is greater than the delay threshold, if the UE 10 sends the SR message to the base station 20 by using the accessory resource of the SR resource, then the base station 20 receives the SR message on the accessory resource.
  • the base station 20 may also send a Grant message to the UE 10 to instruct the UE 10 to send uplink data to the base station 20 on the first TTI resource.
  • the base station 20 receives the SR message sent by the UE 10 on the SR resource, and then the base station 20 may send a Grant message to the UE 10 to instruct the UE 10 to send the uplink data to the base station 20 on the second TTI resource.
  • the base station 20 may also determine the priority level of the uplink data or the type of the uplink data according to different resources of the received SR message, thereby allocating suitable resources for transmitting the uplink data to the UE 10. For example, if the SR message is received on the SR resource, the base station 20 may determine that the uplink data to be transmitted by the UE 10 has a low priority; if the SR message is received on the attached resource, the base station 20 may determine that the UE 10 is to be transmitted. The upstream data has a high priority.
  • the auxiliary resource or the orthogonal sequence of the auxiliary resource is applied to a time unit selected by the UE 10 in a plurality of time units.
  • the time unit is a subframe
  • each PUCCH physical resource is different from the PRB location and the reference signal sequence.
  • the ring shift and the OCC code are jointly determined.
  • the user equipments with the same first two parameters may have three, for example, UE 10, UE 20, and UE 30, respectively.
  • the number of OFDM symbols occupied by the information part in each time slot is 4, there is an OCC code that is redundant, and any one of the UE 10, the UE 20, and the UE 30 can use the OCC code channel to transmit information.
  • the UE 10, the UE 20, and the UE 30 transmit the information using the OCC code channel in turn.
  • the value of the N may be specified by the protocol or sent by the base station, and the m may be sent by the base station 20 or generated by the user equipment 10 according to its own identity ("Identity" ("ID").
  • the method may further include:
  • the UE 10 determines that the kth SR resource in each group is the SR resource, and corresponds to an orthogonal sequence of the auxiliary resource or the auxiliary resource, where K is a natural number greater than 1, and k is between 1 and K-1. Natural number.
  • the UE 10 may use the accessory resource corresponding to the SR resource configured by the base station for the UE 10 according to the scheduling manner, each time the SR message is sent.
  • the SR resources configured by the base station part of the SR resources (k SR resources in each group) are selected, and the SR message is allowed to be sent using its corresponding subsidiary resource.
  • the SR resources to which the UE 10 is periodically allocated are numbered, grouped into every three SR resources, and the first SR is taken from each group and the SR resources are allowed to use the redundant OCC code channel. Uplink scheduling in the foregoing manner. Since SR resources occur periodically, this rule is more suitable for SR resources.
  • the M may be determined by the protocol or sent by the base station 20, and the m may be sent by the base station 20 or generated by the user equipment 10 according to its own ID by a predetermined rule.
  • both the base station 20 and the UE 10 may perform the step of determining the first SR resource, that is, grouping the multiple SR resources according to each K SR resources, and determining that the kth SR resource in each group is the first An SR resource.
  • the uplink scheduling method in the embodiment of the present invention optimizes the uplink scheduling process of the small data packet by using the secondary resource of the SR resource to perform the SR message transmission, and shortens the delay of the entire uplink scheduling process.
  • FIG. 13 is a structural block diagram of a user equipment according to an embodiment of the present invention.
  • the receiving module 1301, the sending module 1302 and the determining module 1303 included in the UE 10 are shown in FIG. 2, and may be used to perform the scheduling method according to an embodiment of the present invention.
  • the determining module 1303 is configured to:
  • the other resources include at least one of a time, a frequency, a cyclic shift sequence, and a cyclic shift value;
  • the sending module 1302 is configured to send, to the base station 20, a scheduling request SR message and a HARQ-ACK message on the HARQ-ACK resource or the auxiliary resource determined by the determining module 1303.
  • the sending module 1302 is specifically configured to:
  • the HARQ-ACK message and the negative SR message are sent to the base station 20, the HARQ-ACK message and the negative SR message are sent to the base station 20 on the HARQ-ACK resource;
  • the HARQ-ACK message and the determined SR message are transmitted to the base station 20
  • the HARQ-ACK message and the determined SR message are transmitted to the base station 20 on the attached resource.
  • the receiving module 1301, the sending module 1302, and the determining module 1303 included in the user equipment 10 shown in FIG. 13 may also be used to perform the scheduling method according to another embodiment of the present invention.
  • the UE 10 further includes a selecting module 1304, where the determining module 1303 is configured to:
  • a scheduling request SR resource configured by the UE 10 and an auxiliary resource corresponding to the SR resource, where the secondary resource is different from the orthogonal sequence used by the SR resource, and other resources are the same, and the other resources include time and frequency.
  • the selecting module 1304 is configured to select one of the SR resource and the auxiliary resource as a sending resource according to status information of uplink data to be sent;
  • the sending module 1302 is configured to send an SR message to the base station 20 on the sending resource determined by the determining module 1303.
  • the status information includes: a size of the uplink data, a delay request value of the uplink data, type information of the uplink data, and priority information of the uplink data. At least one.
  • the status information includes a size relationship between the uplink data and a buffer threshold
  • the selecting module 1304 is configured to:
  • the auxiliary resource is selected as the sending resource.
  • the receiving module 1301 is configured to: receive a grant Grant message sent by the base station 20;
  • the sending module 1302 is further configured to:
  • the sending resource is the SR resource
  • the sending resource is the auxiliary resource, sending the uplink data to the base station 20 according to the Grant message.
  • the receiving module 1301 is configured to: receive a grant Grant message sent by the base station 20;
  • the sending module 1302 is further configured to:
  • the BSR message is sent to the base station 20 according to the Grant message, and the BSR message is used by the base station to allocate the uplink for sending the UE.
  • Resource of data
  • the uplink data is directly sent to the base station 20 according to the Grant message.
  • the status information includes a relationship between a delay requirement value of the uplink data and a delay threshold
  • the selecting module 1304 is further configured to:
  • the SR resource is selected as the sending resource
  • the auxiliary resource is selected as the sending resource.
  • the receiving module 1301 is configured to: receive a grant Grant message sent by the base station 20;
  • the sending module 1302 is further configured to:
  • the sending resource is the SR resource, send the uplink data to the base station 20 on the first transmission time interval TTI resource configured by the base station 20 for the UE 10 according to the Grant message;
  • the receiving module 1301 is configured to: receive a grant Grant message sent by the base station 20;
  • the sending module 1302 is further configured to:
  • the Grant message indicates that the base station 20 configures the first TTI resource for the UE 10
  • the uplink data is sent to the base station 20 on the first TTI resource
  • the Grant message indicates that the base station 20 is configured with the second TTI resource for the UE 10
  • the uplink data is sent to the base station 20 on the second TTI resource, where the length of the second TTI resource is less than The length of the first TTI resource.
  • the orthogonal sequence of the auxiliary resource or the auxiliary resource is applied to a time unit selected by the UE in multiple time units.
  • the number of m is a natural number between 0 and N-1.
  • the M may be determined by the protocol or sent by the base station 20, and the m may be sent by the base station 20 or generated by the user equipment 10 according to its own ID by a predetermined rule.
  • the base station 20 configures multiple SR resources for the UE 10
  • the multiple SR resources are grouped into groups according to the K SR resources, and the determining module 1303 further uses to:
  • the kth SR resource in each group is the SR resource, and corresponding to the orthogonal sequence of the auxiliary resource or the auxiliary resource, where K is a natural number greater than 1, and the k is 1 to K-1 The natural number between.
  • the k may be sent by the base station 20 or generated by the user equipment 10 according to its own ID by a predetermined rule.
  • the user equipment in the embodiment of the present invention optimizes the uplink scheduling process of the small data packet by using the redundant code channel of the PUCCH to perform the SR message and the HARQ-ACK message transmission, and shortens the delay of the entire uplink scheduling process.
  • FIG. 14 is a structural block diagram of a base station according to an embodiment of the present invention.
  • the base station 20 in FIG. 14 includes a sending module 1401, a receiving module 1402, and a configuration module 1403, which can be used to perform the scheduling method according to an embodiment of the present invention, where the configuration module 1403 is configured to:
  • a hybrid automatic retransmission acknowledgement HARQ-ACK resource and an auxiliary resource corresponding to the HARQ-ACK resource where the secondary resource is different from the orthogonal sequence used by the HARQ-ACK resource, and other resources are the same,
  • Other resources include at least one of time, frequency, cyclic shift sequence, and cyclic shift value;
  • the receiving module 1402 is configured to receive, by using the HARQ-ACK resource configured by the configuration module 1403 or the auxiliary resource, a scheduling request SR message and a HARQ-ACK message sent by the UE 10.
  • the base station 20 further includes a determining module 1404, where the determining module 1404 is specifically configured to:
  • the UE 10 If the HARQ-ACK message sent by the UE 10 is received on the HARQ-ACK resource, it is determined that the UE 10 sends the HARQ-ACK message and the negative SR message;
  • the UE 10 If the HARQ-ACK message sent by the UE 10 is received on the accessory resource, it is determined that the UE 10 sends the HARQ-ACK message and the determined SR message.
  • the transmitting module 1401, the receiving module 1402, the configuration module 1403, and the determining module 1404 included in the base station 20 shown in FIG. 14 may also be used to perform the scheduling method according to another embodiment of the present invention.
  • the configuration module 1403 is configured to:
  • auxiliary resource is different from the orthogonal sequence used by the SR resource, and other resources are the same, and the other resources include time, frequency, and cyclic shift At least one of a bit sequence and a cyclic shift value;
  • the receiving module 1401 is configured to use the SR resource or the accessory configured in the configuration module 1403 On the resource, the SR message sent by the UE 10 is received.
  • the determining module 1404 is specifically configured to:
  • the SR message is received on the affiliation resource, it is determined that the uplink data to be sent by the UE 10 is smaller than the cache threshold.
  • the sending module 1401 is configured to: send a permission Grant message to the UE 10 according to the SR message;
  • the receiving module 1402 is further configured to:
  • the determining module 1404 determines that the uplink data is greater than the buffer threshold, receiving a buffer status report BSR message sent by the UE according to the indication of the Grant message, and assigning the UE a suitable one for sending according to the BSR message.
  • the resource of the uplink data
  • the determining module 1404 determines that the size of the uplink data is smaller than the buffer threshold, receiving the uplink data that is sent by the UE according to the indication of the Grant message.
  • the determining module 1404 is specifically configured to:
  • the delay requirement value of the uplink data to be sent by the UE 10 is smaller than the delay threshold.
  • the sending module 1401 is further configured to: send a permission Grant message to the UE 10 according to the SR message;
  • the configuration module 1403 is also used to:
  • the determining module 1404 determines that the delay request value of the uplink data is greater than the delay threshold, configuring, for the UE 10, a first transmission time interval TTI resource for sending the uplink data;
  • the UE 10 is configured with a second TTI resource for sending the uplink data, where the length of the second TTI resource is smaller than the first The length of a TTI resource;
  • the receiving module 1402 is further configured to receive, by the configuration module 1403, the uplink data that is sent by the UE 10 according to the Grant message, on the first TTI resource or the second TTI resource configured by the UE 10.
  • the auxiliary resource or the orthogonal sequence of the auxiliary resource It is applied to a time unit selected by the UE in a plurality of time units.
  • the time unit is a subframe
  • the UE is numbered n.
  • the m is a natural number between 0 and N-1.
  • the M may be determined by the protocol or sent by the base station 20, and the m may be sent by the base station 20 or generated by the user equipment 10 according to its own ID by a predetermined rule.
  • the base station 20 when the base station 20 periodically configures multiple SR resources for the UE 10, the multiple SR resources are grouped into groups according to each K SR resources, and the determining module 1404 is further used. to:
  • the kth SR resource in each group is the SR resource, and corresponding to the orthogonal sequence of the auxiliary resource or the auxiliary resource, where K is a natural number greater than 1, and the k is 1 to K-1 The natural number between.
  • the k may be sent by the base station 20 or generated by the user equipment 10 according to its own ID by a predetermined rule.
  • the base station by using the redundant code channel of the PUCCH, receives the SR message and the HARQ-ACK message sent by the user equipment, optimizes the uplink scheduling process of the small data packet, and shortens the delay of the entire uplink scheduling process. .
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another The system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the computer device is usually the baseband processor 101 corresponding to FIG. 2, and the inside thereof may include a processor for executing a software program, such as a central processing unit ("CPU") or a digital signal processor (Digital Signal). Processor, referred to as "DSP".
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .
  • the memory in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
  • the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
  • RAM Random Access Memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SDRAM Synchronous Linked Dynamic Random Access Memory
  • DR RAM Direct Memory Bus Random Memory

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé de planification de liaison montante. Le procédé comprend les étapes suivantes : un équipement utilisateur (UE) détermine des ressources de demande de planification (SR) allouées par une station de base à l'UE et des ressources auxiliaires correspondant aux ressources SR, des séquences orthogonales utilisées par les ressources auxiliaires et les ressources SR étant différentes, d'autres ressources sont identiques, et les autres ressources comprenant au moins l'un d'un temps, d'une fréquence, d'une séquence de décalage cyclique et d'une valeur de décalage cyclique ; l'UE sélectionne, en fonction des informations d'état des données de liaison montante à envoyer, une ressource parmi les ressources SR et les ressources auxiliaires en tant que ressource d'envoi ; et l'UE envoie un message SR à la station de base sur la ressource d'envoi. De cette façon, en utilisant des ressources auxiliaires parmi les ressources de PUCCH, le processus de planification de liaison montante est optimisé, et le retard dans le processus de planification de liaison montante est raccourci.
PCT/CN2016/073033 2016-02-01 2016-02-01 Procédé de planification de liaison montante, équipement utilisateur, et station de base Ceased WO2017132788A1 (fr)

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