WO2011098002A1 - 一种上行数据传输方法、装置和系统 - Google Patents

一种上行数据传输方法、装置和系统 Download PDF

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Publication number
WO2011098002A1
WO2011098002A1 PCT/CN2011/070781 CN2011070781W WO2011098002A1 WO 2011098002 A1 WO2011098002 A1 WO 2011098002A1 CN 2011070781 W CN2011070781 W CN 2011070781W WO 2011098002 A1 WO2011098002 A1 WO 2011098002A1
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Prior art keywords
transmission
uplink data
user equipment
contention
scheduling request
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PCT/CN2011/070781
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English (en)
French (fr)
Inventor
许芳丽
谌丽
刘佳敏
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电信科学技术研究院
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Publication of WO2011098002A1 publication Critical patent/WO2011098002A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/02Selection of wireless resources by user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA

Definitions

  • the present invention relates to the field of mobile communication technologies, and in particular, to an uplink data transmission method, apparatus, and system. Background technique
  • the UE User Equipment
  • RRC Radio Resource Control
  • eNB Evolved Node B
  • the D-SR Dedicated Scheduling Request
  • RA-SR Random Access Scheduling Request
  • the UE delays waiting for the next SR (Scheduling Request) timing, and sends a scheduling request to the eNB; the eNB decodes the scheduling request and allocates a scheduling grant (Scheduling Grant), and sends the scheduling grant (Scheduling Grant) to the UE. Returning the scheduling grant; the UE processes the decoding scheduling grant, encodes the uplink data, and transmits the encoded uplink data to the eNB.
  • D-SR transmission optimal delay estimation table Physical Uplink Control Channel, physically
  • Line control channel period is 5 ms
  • 3 eNB decodes the scheduling request and allocates the scheduling authorization 3
  • the total delay is 11.5. If the UE does not need to configure the D-SR transmission, if the UE needs to send the uplink data, you need to apply for data transmission to the network through the competitive random access procedure, including the following steps:
  • Msgl UE chooses random access preamble (preamble) and PRACH (packet)
  • the base station receives the random access preamble, calculates the TA (Timing Advance), and sends a random access response to the UE.
  • the random access response includes at least the timing advance information and the UL grant for the Msg3.
  • the UE performs uplink transmission on the UL grant specified by the Msg2.
  • the content of the Msg3 uplink transmission is different for different random access reasons. For example, for the initial access, the Msg3 transmits an RRC connection establishment request.
  • Msg4 The base station sends a contention resolution message to the UE.
  • the UE can judge whether the random access is successful according to Msg4.
  • LTE-A Long Term Evolution
  • Active active state
  • the target of reducing the conversion time from the uplink data transmission to the uplink transmission to 10 milliseconds is introduced, and a contention based transmission method based on contention is introduced.
  • the UE does not currently have dedicated resources, it can be allowed to The uplink data is transmitted on the uplink resources of the competition.
  • the base station notifies the UE of the basic configuration information of the uplink transmission based on the contention, the information includes a scheduling identifier CB-RNTI (Contention Based-Radio Network Temporary Identity, based on the contention of the wireless network temporary identifier;); Uplink transmission basic configuration information; eNB scheduling the contention resource; the UE decodes the scheduling grant and encodes the uplink data, and transmits the encoded uplink data on the uplink shared channel.
  • CB-RNTI Contention Based-Radio Network Temporary Identity, based on the contention of the wireless network temporary identifier
  • the D-SR/RA-SR transmission process and the contention-based uplink data transmission process are triggered at the same time.
  • D-SR transmission based on PUCCH channel and CB transmission based on PUSCH (Physical Uplink Shared Channel) channel cannot be supported. Lose at the same time.
  • the preamble (PRACH resource) transmission or the Msg3 (PUSCH resource) transmission and the CB transmission may also occur simultaneously, and the current LTE-A UE cannot solve the above transmission. Concurrency in the same sub-frame.
  • the embodiments of the present invention provide an uplink data transmission method, apparatus, and system, which are used to improve transmission reliability of uplink data and shorten transmission delay.
  • An embodiment of the present invention provides an uplink data transmission method, including the following steps: When a user equipment needs to send uplink data, the user equipment initiates a scheduling request transmission and a contention-based uplink data transmission to the base station device;
  • the user equipment selects a currently transmitted channel type according to the transmission capability of the user equipment, and sends uplink data or sends a scheduling request according to the channel type.
  • the embodiment of the invention further provides a user equipment, including:
  • a scheduling requesting module configured to initiate a scheduling request transmission to the base station device when the user equipment needs to send uplink data
  • a contention transmission module configured to initiate a contention-based uplink data transmission to the base station device when the user equipment needs to send uplink data
  • a selection module configured to select a currently transmitted channel type according to a transmission capability of the user equipment, when the scheduling request transmission initiated by the scheduling request module and the contention-based uplink data transmission initiated by the contention transmission module collide with each other, and Notifying the scheduling request module and/or the contention transmission module to send uplink data or send a scheduling request according to the channel type.
  • An embodiment of the present invention further provides an uplink data transmission system, including:
  • the user equipment when the uplink data needs to be sent, initiates a scheduling request transmission and a contention-based uplink data transmission to the base station device; if the scheduling request transmission and the contention-based uplink data transmission conflict with each other, the user equipment is configured according to User equipment transmission capability Selecting a channel type currently transmitted, and transmitting uplink data or sending a scheduling request according to the channel type;
  • the base station device is configured to receive uplink data or send a scheduling request from the user equipment.
  • the technical solution of the embodiment of the present invention has the following advantages: in the case where multiple uplink data requests and transmission processes coexist, the transmission type is selected based on the UE transmission capability, the transmission reliability is improved, and the transmission delay is reduced.
  • FIG. 1 is a flowchart of an uplink data transmission method according to Embodiment 1 of the present invention
  • FIG. 2 is a flowchart of an uplink data transmission method according to Embodiment 2 of the present invention
  • FIG. 3 is a flowchart of Embodiment 3 of the present invention
  • FIG. 4 is a flowchart of an uplink data transmission method according to Embodiment 4 of the present invention
  • FIG. 5 is a flowchart of an uplink data transmission method according to Embodiment 5 of the present invention
  • FIG. 7 is a schematic structural diagram of a user equipment according to Embodiment 7 of the present invention
  • FIG. 8 is a schematic structural diagram of an uplink data transmission system according to Embodiment 8 of the present invention. detailed description
  • the UE when the UE needs to send uplink data, if the uplink data transmission based on the contention and the current scheduling request transmission time conflict, the UE selects the transmission capability, the transmission reliability, and the transmission delay. The type of channel currently being transmitted.
  • the UE when the UE in the synchronization state has uplink data to be transmitted, the UE starts to listen to the CB GRANT (trigger authorization) while triggering the D-SR or the RA-SR.
  • the UE may initiate uplink transmission in the D-SR or the RA-SR at the same time as the CB transmission indicated by the CB GRANT, including pre-mble transmission in the D-SR transmission and the RACH (Random Access Channel) process. And Msg3 transmission of the RACH process. If the UE supports multiple transmissions for parallel transmission, multiple transmissions are simultaneously performed; Otherwise, the type of the current transmission is selected based on the following policy:
  • the CB transmission When the D-SR transmission conflicts with the CB transmission, if the configuration period of the D-SR transmission is not greater than the preset value, since the delay of the CB transmission is lower than the delay of the D-SR transmission, the CB transmission is preferred. Before the next D-SR transmission, if the CB transmission is not determined to be successful, the validity of the request can be guaranteed by subsequent non-conflicting D-SR transmission.
  • the D-SR density is low, that is, the configuration period of the D-SR transmission is greater than the preset value, the time interval between the two D-SR resources is long, and since the CB transmission has a certain risk of failure, the retransmission mechanism has The possibility of collision, the next time the D-SR transmission timing is too late may cause subsequent packets to be delayed for scheduled transmission and timeout packet loss. Therefore, when D-SR transmission and CB transmission conflict, equalization delay and reliability Sex factor, preferred D-SR transmission.
  • the CB transmission is selected from the delay factor; when the CB transmission fails, the RACH procedure can be considered.
  • the Msg3 transmission has a relatively mature retransmission mechanism and a conflict resolution mechanism, and the Msg3 transmission is already authorized for the UE after the initial collision detection, and the security will be Better than CB transmission, therefore, preferred Msg3 transmission, cancel CB transmission.
  • FIG. 1 it is a flowchart of an uplink data transmission method according to Embodiment 1 of the present invention, which includes the following steps:
  • Step 101 When the user equipment needs to send uplink data, initiate a scheduling request transmission and a contention-based uplink data transmission to the base station device.
  • Step 102 If the scheduling request transmission and the contention-based uplink data transmission conflict with each other, the user equipment selects a currently transmitted channel type according to the transmission capability of the user equipment, and sends uplink data or sends a scheduling request according to the channel type. Specifically, the foregoing scheduling request transmission and the contention-based uplink data transmission conflict with each other, specifically: the user equipment needs to provide transmission resources to the scheduling request transmission and the contention-based uplink data transmission at the same time. The scheduling request transmission and the contention-based uplink data transmission are performed at the same time, and the user equipment needs to transmit the scheduling request transmission and the contention-based uplink data in concurrent transmission in the same subframe.
  • the user equipment selects the currently transmitted channel type according to the transmission capability of the user equipment, and specifically includes: if the user equipment has the capability of parallel transmission of PUCCH and PUSCH, the user equipment simultaneously selects scheduling request transmission and contention-based uplink data transmission. If the user equipment does not have the capability of PUCCH and PUSCH parallel transmission, the user equipment selects a scheduling request transmission or a contention based uplink data transmission.
  • the foregoing scheduling request transmission includes a D-SR transmission.
  • the user equipment may select a D-SR transmission or a contention-based uplink according to a preset default rule. data transmission.
  • the default rule may be: The user equipment selects the D-SR transmission by default; or the user equipment selects the contention-based uplink data transmission by default.
  • the user equipment may also select D-SR transmission or contention based uplink data transmission according to a preset judgment rule.
  • the user equipment selecting the scheduling request transmission or the contention-based uplink data transmission specifically includes: if the configuration period of the D-SR transmission is greater than a preset value, the user equipment selects the D-SR transmission; The configuration period of the D-SR transmission is not greater than a preset value, and the user equipment selects the contention-based uplink data transmission.
  • the above scheduling request transmission also includes random access preamble transmission during RA-SR transmission or uplink data transmission during RA-SR transmission.
  • the user equipment selects the currently transmitted channel type according to the transmission capability of the user equipment, and specifically includes: if the random access preamble transmission and the contention-based uplink data transmission conflict with each other, the user equipment selects the contention based on the competition Uplink data transmission; if the uplink data transmission in the RA-SR transmission process and the contention-based uplink data transmission conflict with each other, the user equipment selects an uplink data transmission in the RA-SR transmission process.
  • the technical solution of the embodiment of the present invention has the following advantages in multiple uplink data requests and When the transmission process coexists, the transmission type is selected based on the UE transmission capability, which improves the transmission reliability and reduces the transmission delay.
  • the uplink data transmission process is as shown in FIG. 2, and includes the following steps: Step 201: When the UE needs to send uplink data, wait for the D-SR. Send an opportunity to start listening to CB GRANT at the same time.
  • Step 202 The eNB sends a CB GRANT to the UE.
  • Step 203 The UE prepares a CB transmission, decodes the CB GRANT, and encodes the uplink data.
  • Step 204 If a D-SR transmission occurs at the time of the CB GRANT, the UE initiates the D-SR transmission and the CB transmission at the CB GRANT moment.
  • step 205 When the CB transmission is successful, step 205 is performed; otherwise, step 207 is performed. Step 205: When the eNB successfully receives the CB transmission, the eNB obtains the information of the UE from the CB transmission, and does not perform a scheduling response on the D-SR transmission received from the UE at the same time.
  • the information of the UE includes a C-RNTI (Cell Network Temporary Identity).
  • C-RNTI Cell Network Temporary Identity
  • Step 206 The UE cancels the D-SR transmission. After performing this step, you can end the process.
  • Step 207 The UE continues to transmit the D-SR at the time of the next D-SR transmission.
  • Step 208 The eNB decodes the D-SR and allocates a scheduling grant.
  • Step 209 The eNB returns a scheduling grant to the UE.
  • Step 210 The UE processes the decoding scheduling authorization to encode the uplink data.
  • Step 211 The UE transmits the encoded uplink data to the eNB.
  • the method of the present invention can adjust the sequence of each step according to actual needs.
  • the technical solution of the embodiment of the present invention has the following advantages: in the case where multiple uplink data requests and transmission processes coexist, the transmission type is selected based on the UE transmission capability, the transmission reliability is improved, and the transmission delay is reduced.
  • the uplink data transmission process is as shown in FIG. 3, and includes the following steps:
  • Step 301 When the UE needs to send uplink data, wait for the D-SR to send the opportunity, and start to listen to the CB GRANT.
  • Step 302 The eNB sends a CB GRANT to the UE.
  • Step 303 The UE prepares a CB transmission, decodes the CB GRANT, and encodes the uplink data.
  • Step 304 If a D-SR transmission occurs at the CB GRANT moment, the UE initiates only the CB transmission at the CB GRANT moment.
  • step 305 When the CB transmission is successful, step 305 is performed; otherwise, step 307 is performed. Step 305: When the eNB successfully receives the CB transmission, the eNB obtains the information of the UE from the CB transmission.
  • the information of the UE includes a C-RNTI.
  • Step 306 The UE cancels the D-SR transmission. After performing this step, you can end the process.
  • Step 307 The UE continues to transmit the D-SR at the time of the next D-SR transmission.
  • Step 308 The eNB decodes the D-SR and allocates a scheduling grant.
  • Step 309 The eNB returns a scheduling grant to the UE.
  • Step 310 The UE processes the decoding scheduling grant to encode the uplink data.
  • Step 311 The UE transmits the encoded uplink data to the eNB.
  • the method of the present invention can adjust the sequence of each step according to actual needs.
  • the technical solution of the embodiment of the present invention has the following advantages: in the case where multiple uplink data requests and transmission processes coexist, the transmission type is selected based on the UE transmission capability, the transmission reliability is improved, and the transmission delay is reduced.
  • the uplink data transmission process is as shown in FIG. 4, and includes the following steps:
  • Step 401 When the UE needs to send uplink data, wait for the D-SR to send the opportunity, and start to listen to the CB GRANT.
  • Step 402 The eNB sends a CB GRANT to the UE.
  • Step 403 The UE prepares a CB transmission, decodes the CB GRANT, and encodes the uplink data.
  • Step 404 If a D-SR transmission occurs at the CB GRANT time, the UE initiates only the D-SR transmission at the CB GRANT time.
  • Step 405 The eNB decodes the D-SR and allocates a scheduling grant.
  • Step 406 The eNB returns a scheduling grant to the UE.
  • Step 407 The UE processes the decoding scheduling grant to encode the uplink data.
  • Step 408 The UE transmits the encoded uplink data to the eNB.
  • the information of the UE is obtained from the CB transmission, and the information of the UE includes the C-RNTL.
  • the method of the present invention can adjust the sequence of each step according to actual needs.
  • the technical solution of the embodiment of the present invention has the following advantages: in the case where multiple uplink data requests and transmission processes coexist, the transmission type is selected based on the UE transmission capability, the transmission reliability is improved, and the transmission delay is reduced.
  • the preamble (Msgl) transmission and the CB transmission conflict in the RACH process the uplink data transmission process is as shown in FIG. 5, and includes the following steps:
  • Step 501 When the UE in the synchronization state needs to send uplink data, initialize a random access procedure, and start monitoring CB GRANT 0 at the same time.
  • Step 502 The eNB sends a CB GRANT to the UE.
  • Step 503 The UE prepares a CB transmission, decodes the CB GRANT, and encodes the uplink data.
  • Step 504 if there is CB transmission occurring at the time of sending the preamble, the UE Initiate a CB transmission and stop the RACH process.
  • step 505 When the CB transmission is successful, step 505 is performed; otherwise, step 506 is performed. Step 505: When the eNB successfully receives the CB transmission, the eNB obtains the information of the UE from the CB transmission. After performing this step, you can end the process.
  • the information of the UE includes a C-RNTI.
  • Step 506 The UE selects a random access preamble and a PRACH resource.
  • Step 507 The UE sends the selected random access preamble to the eNB by using the PRACH resource.
  • Step 508 the eNB calculates a timing advance.
  • Step 509 The eNB sends a random access response to the UE.
  • the random access response includes at least timing advance information and a UL grant.
  • Step 510 The UE performs uplink data transmission on the UL grant.
  • Step 511 The eNB sends a contention resolution message to the UE.
  • Step 512 The UE determines, according to the contention resolution message, whether the random access is successful.
  • the method of the present invention can adjust the sequence of each step according to actual needs.
  • the technical solution of the embodiment of the present invention has the following advantages: in the case where multiple uplink data requests and transmission processes coexist, the transmission type is selected based on the UE transmission capability, the transmission reliability is improved, and the transmission delay is reduced.
  • the uplink data transmission (Msg3) and the CB transmission conflict in the RACH process if the UE does not have the capability of transmitting PUCCH and PUSCH simultaneously, the uplink data transmission process is as shown in FIG. 6, and includes the following steps:
  • Step 601 When the UE in the synchronization state needs to send uplink data, initialize a random access procedure, and start to monitor CB GRANT 0 at the same time.
  • Step 602 The UE sends the selected random access preamble to the eNB by using the PRACH resource.
  • Step 603 the eNB calculates a timing advance.
  • Step 604 The eNB sends a random access response to the UE.
  • the random access response includes at least timing advance information and a UL grant.
  • Step 605 The UE confirms that the random access response is successfully received, and stops monitoring the CB GRANT.
  • Step 606 If the uplink data transmission according to the UL grant carried in the random access response is in the same subframe as the CB transmission indicated by the received CB GRANT,
  • the UE performs uplink data transmission on the UL grant.
  • Step 607 The eNB sends a contention resolution message to the UE.
  • Step 608 The UE determines, according to the contention resolution message, whether the random access is successful.
  • the information of the UE is obtained from the CB transmission, and the information of the UE includes the C-RNTL.
  • the method of the present invention can adjust the sequence of each step according to actual needs.
  • the technical solution of the embodiment of the present invention has the following advantages: in the case where multiple uplink data requests and transmission processes coexist, the transmission type is selected based on the UE transmission capability, the transmission reliability is improved, and the transmission delay is reduced.
  • FIG. 7 is a schematic structural diagram of a user equipment according to Embodiment 7 of the present invention, including:
  • the scheduling request module 710 is configured to initiate scheduling request transmission to the base station device when the user equipment needs to send uplink data.
  • the contention transmission module 720 is configured to initiate a contention-based uplink data transmission to the base station device when the user equipment needs to send uplink data.
  • the selecting module 730 is configured to: when the scheduling request transmission initiated by the scheduling request module 710 and the contention-based uplink data transmission initiated by the contention transmission module 720 collide with each other, select a currently transmitted channel according to a transmission capability of the user equipment. Type, and notify the scheduling request module and/or the contention transmission module to send uplink data or send a scheduling request according to the channel type.
  • the selecting module 730 is configured to: when the user equipment has the capability of parallel transmission of the PUCCH and the PUSCH, simultaneously select scheduling request transmission and contention-based uplink data transmission; and the user equipment does not have the capability of PUCCH and PUSCH parallel transmission. When scheduling, select a scheduled request transmission or a contention-based upstream data transmission.
  • the foregoing scheduling request transmission includes D-SR transmission, and the selecting module 730 may be configured to select the D-SR transmission, or may be used to select the contention-based uplink data transmission.
  • the selection module 730 is configured to select the D-SR transmission when the configuration period of the D-SR transmission is greater than a preset value; the configuration period of the D-SR transmission is not greater than a preset. When the value is selected, the contention-based uplink data transmission is selected.
  • the foregoing scheduling request transmission further includes a random access preamble transmission in the RA-SR transmission process or an uplink data transmission in the RA-SR transmission process, and the foregoing selection module 730 is configured to transmit the random access preamble and the When the uplink data transmissions of the contention conflict with each other, the contention-based uplink data transmission is selected; when the uplink data transmission in the RA-SR transmission process conflicts with the contention-based uplink data transmission, the Uplink data transmission during RA-SR transmission.
  • FIG. 8 is a schematic structural diagram of an uplink data transmission system according to Embodiment 8 of the present invention, including:
  • the user equipment 810 when the uplink data needs to be sent, initiate scheduling request transmission and contention-based uplink data transmission to the base station apparatus 820; if the scheduling request transmission and the contention-based uplink data transmission conflict with each other, the user The device selects the currently transmitted channel type according to the transmission capability of the user equipment, and sends uplink data or sends a scheduling request according to the channel type.
  • the foregoing user equipment 810 is configured to simultaneously select scheduling request transmission and contention-based uplink data transmission when the user equipment has the capability of PUCCH and PUSCH parallel transmission.
  • the scheduling request transmission or the contention-based uplink data transmission is selected.
  • the scheduling request transmission includes a random access preamble transmission in a random access scheduling request RA-SR transmission process or an uplink data transmission in an RA-SR transmission process, where the user equipment 810 is configured to transmit in the random access preamble Selecting the contention-based uplink data transmission when the contention-based uplink data transmission conflicts with each other; the uplink data transmission during the RA-SR transmission process conflicts with the contention-based uplink data transmission When the RA-SR transmission process is selected, the uplink data transmission is performed.
  • the base station device 820 is configured to receive uplink data or send a scheduling request from the user equipment.
  • the technical solution of the embodiment of the present invention has the following advantages: in the case where multiple uplink data requests and transmission processes coexist, the transmission type is selected based on the UE transmission capability, the transmission reliability is improved, and the transmission delay is reduced.
  • the form of the software product is embodied, the computer software product being stored in a storage medium, including a plurality of instructions for causing a terminal device (which may be a mobile phone, a personal computer, a server, or a network device) to execute the present
  • a terminal device which may be a mobile phone, a personal computer, a server, or a network device.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or the corresponding changes may be located in one or more apparatuses different from the embodiment.
  • the modules of the foregoing embodiments may be integrated into one, or may be deployed separately, may be combined into one module, or may be further split into multiple sub-modules.
  • the serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.
  • the above disclosure is only a few specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

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Description

一种上行数据传输方法、 装置和系统 本申请要求于 2010年 2 月 11 日提交中国专利局, 申请号为 201010111756.5 , 发明名称为 "一种上行数据传输方法、装置和系统" 的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及移动通信技术领域,特别是涉及一种上行数据传输方 法、 装置和系统。 背景技术
在 LTE ( Long Term Evolution, 长期演进) 系统中, UE ( User Equipment,用户设备 )具有同 eNB ( Evolved Node B , 演进型节点 Β ) 之间的 RRC ( Radio Resource Control, 无线资源控制 )连接和已经建 立起来的无线承载时, 如果需要传输上行数据却没有分配上行资源, 可以通过 D-SR ( Dedicated Scheduling Request, 专用调度请求)或 RA-SR ( Random Access Scheduling Request, 随机接入调度请求) 的 方式向 eNB发送调度请求, 申请发送上行数据。
在 UE 配置了 D-SR传输的情况下, UE延时等待下一个 SR ( Scheduling Request, 调度请求 )时机, 向 eNB发送调度请求; eNB 解码调度请求并分配调度授权 ( Scheduling Grant ), 并向 UE返回该 调度授权; UE处理解码调度授权, 对上行数据进行编码, 并向 eNB 传输编码后的上行数据。
基于上述流程, 按照最小的时延和周期, 且不考虑传输错误的情 况下, 各部分的最佳时延估算, 如表 1所示:
D-SR传输最佳时延估算表
Figure imgf000003_0001
( Physical Uplink Control Channel, 物理上
行控制信道)周期为 5毫秒
2 UE发送调度请求 1
3 eNB解码调度请求并分配调度授权 3
4 传输调度授权 1
5 UE处理时延, 包括解码调度授权和对上行 3
数据进行编码
6 传输上行数据 1
总共时延 11.5 在 UE没有配置 D-SR传输的情况下, 如果 UE需要发送上行数 据, 则需要通过竟争随机接入过程向网络侧申请数据发送, 包括以下 步骤:
Msgl : UE选择随机接入 preamble (前导 )和 PRACH ( Packet
Random Access Channel,分组随机接入信道 )资源,并利用该 PRACH 资源向基站发送所选的随机接入 preamble;
Msg2:基站接收到随机接入 preamble,计算 TA( Timing Advance, 定时提前量), 并向 UE发送随机接入响应, 随机接入响应中至少包 含该定时提前量信息和针对 Msg3的 UL grant ( Up Link grant, 上行 链路授权 );
Msg3: UE在 Msg2指定的 UL grant上进行上行传输, 不同随机 接入原因 Msg3 上行传输的内容不同, 例如, 对于初始接入, Msg3 传输的是 RRC连接建立请求;
Msg4: 基站向 UE发送竟争解决消息。 UE可以根据 Msg4判断 随机接入是否成功。
在 3GPP ( 3rd Generation Partnership Project, 第三代合作伙伴计 划) LTE- A ( LTE- Advanced, 高级长期演进) 系统中, 为了支持更 短的从休眠状态 (Dormant ) 到激活状态 (Active ) 的转换时延, 提 出将 UE从有上行数据发送到上行传输的转换时间缩减为 10毫秒的 目 标, 并引入基于竟争的上行数据传输 ( Contention based transmission )方式, 当 UE当前没有专用的资源时, 可以被允许在竟 争的上行资源上传输上行数据。
具体地, 基站通知 UE基于竟争的上行传输基本配置信息, 该信 息包括调度标识 CB-RNTI ( Contention Based-Radio Network Temporary Identity , 基于竟争的无线网络临时标识;); UE接收并存储 基于竟争的上行传输基本配置信息; eNB调度竟争资源; UE解码调 度授权并对上行数据进行编码,在上行共享信道传输编码后的上行数 据。
基于上述流程, 各部分的最佳时延估算, 如表 2所示:
表 2 CB传输最佳时延估算表
Figure imgf000005_0001
发明人在实现本发明的过程中, 发现现有技术至少存在如下问 题:
在引入基于竟争的上行数据传输后, 对于同步状态下的连接态
UE而言, 当 UE需要发送上行数据的时刻,会同时触发 D-SR/RA-SR 传输过程和基于竟争的上行数据传输过程。当上述两种过程并行的时 刻, 会出现同一时刻有两种上行传输同时进行的情况。 然而, 对于现 有的 UE而言,不能支持基于 PUCCH信道的 D-SR传输和基于 PUSCH ( Physical Uplink Shared Channel, 物理上行共享信道 )信道的 CB传 输同时进行。 另外, 对于 UE触发 RA-SR传输的情况, 也会出现其 中的 preamble ( PRACH资源 )传输或 Msg3 ( PUSCH资源 )传输和 CB传输同时进行的情况, 当前的 LTE-A UE同样无法解决上述传输 在同一个子帧内并发的情况。
发明内容
本发明实施例提供一种上行数据传输方法、 装置和系统, 用于提 高上行数据的传输可靠性和缩短传输时延。
本发明实施例提出一种上行数据传输方法, 包括以下步骤: 用户设备需要发送上行数据时,向基站设备发起调度请求传输和 基于竟争的上行数据传输;
如果所述调度请求传输和所述基于竟争的上行数据传输互相沖 突, 所述用户设备根据用户设备的传输能力选择当前传输的信道类 型, 并按照所述信道类型发送上行数据或发送调度请求。
本发明实施例还提出一种用户设备, 包括:
调度请求模块, 用于在用户设备需要发送上行数据时, 向基站设 备发起调度请求传输;
竟争传输模块, 用于在用户设备需要发送上行数据时, 向基站设 备发起基于竟争的上行数据传输;
选择模块,用于在所述调度请求模块发起的调度请求传输和所述 竟争传输模块发起的基于竟争的上行数据传输互相沖突时,根据用户 设备的传输能力选择当前传输的信道类型,并通知所述调度请求模块 和 /或所述竟争传输模块按照所述信道类型发送上行数据或发送调度 请求。
本发明实施例还提出一种上行数据传输系统, 包括:
用户设备, 在需要发送上行数据时, 向基站设备发起调度请求传 输和基于竟争的上行数据传输;如果所述调度请求传输和所述基于竟 争的上行数据传输互相沖突,所述用户设备根据用户设备的传输能力 选择当前传输的信道类型,并按照所述信道类型发送上行数据或发送 调度请求;
基站设备,用于接收来自所述用户设备的上行数据或发送调度请 求。
本发明实施例的技术方案具有以下优点,在多种上行数据请求和 发送过程并存的情况下, 基于 UE传输能力选择传输类型, 提高了传 输可靠性, 降低了传输时延。 附图说明
图 1为本发明实施例一中的一种上行数据传输方法流程图; 图 2为本发明实施例二中的一种上行数据传输方法流程图; 图 3为本发明实施例三中的一种上行数据传输方法流程图; 图 4为本发明实施例四中的一种上行数据传输方法流程图; 图 5为本发明实施例五中的一种上行数据传输方法流程图; 图 6为本发明实施例六中的一种上行数据传输方法流程图; 图 7为本发明实施例七中的一种用户设备结构示意图;
图 8为本发明实施例八中的一种上行数据传输系统结构示意图。 具体实施方式
本发明实施例提供的技术方案中, UE需要发送上行数据的时刻, 如果基于竟争的上行数据传输和当前的调度请求发送时刻沖突,则基 于 UE传输能力、传输可靠性和传输时延,选择当前传输的信道类型。
具体地, 当同步状态下的 UE有上行数据待传输的时刻, 该 UE 在触发 D-SR或 RA-SR的同时, 开始监听 CB GRANT (沖突授权)。 UE在 CB GRANT指示的进行 CB传输的子帧, 可以同时发起 D-SR 或 RA-SR中的上行传输, 包括 D-SR传输、 RACH ( Random Access Channel, 随机接入信道)过程中的 preamble传输和 RACH过程的 Msg3传输。 如果 UE支持多种传输并行发送, 则同时进行多种传输; 否则, 则基于如下策略选择当前传输的类型:
当 D-SR传输和 CB传输沖突时, 如果 D-SR传输的配置周期不 大于预设数值, 由于 CB传输的时延低于 D-SR传输的时延, 因此首 选 CB传输。 在下次 D-SR传输之前, 如果 CB传输未确定成功, 还 可以通过后续非沖突的 D-SR传输来保证请求有效性。
当 D-SR密度较低, 即 D-SR传输的配置周期大于预设数值时, 两个 D-SR资源之间的时间间隔 ^艮长, 由于 CB传输有一定的失败风 险, 重传机制有沖突的可能性, 下次 D-SR传输时机过于靠后可能导 致后续数据包长期得不到调度传输而出现超时丢包, 所以, 在 D-SR 传输和 CB传输沖突时, 均衡时延和可靠性的因素, 首选 D-SR传输。
当 RACH过程中的 preamble传输和 CB传输沖突时,由于 RACH 传输的时延较大, 故从时延因素出发, 选择 CB传输; 当 CB传输失 败后, 可以再考虑 RACH过程。
当 RACH过程中的 Msg3传输和 CB传输沖突, 由于 Msg3传输 具有较为成熟的重传机制和沖突解决机制, 且该 Msg3传输已经是经 历了初步的沖突检测后为该 UE授权的传输,保障性会比 CB传输好, 因此, 首选 Msg3传输, 取消 CB传输。
下面将结合本发明实施例中的附图,对本发明实施例中的技术方 案进行清楚、 完整地描述, 显然, 所描述的实施例是本发明一部分实 施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技 术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属 于本发明保护的范围。
如图 1所示,为本发明实施例一中的一种上行数据传输方法流程 图, 包括以下步骤:
步骤 101 , 用户设备需要发送上行数据时, 向基站设备发起调度 请求传输和基于竟争的上行数据传输。
步骤 102, 如果调度请求传输和基于竟争的上行数据传输互相沖 突, 用户设备根据用户设备的传输能力选择当前传输的信道类型, 并 按照该信道类型发送上行数据或发送调度请求。 具体地, 上述调度请求传输和基于竟争的上行数据传输互相沖 突, 具体为: 用户设备需要同时向调度请求传输和基于竟争的上行数 据传输提供传输资源。上述调度请求传输和基于竟争的上行数据传输 在同一时刻进行,而用户设备需要将上述调度请求传输和基于竟争的 上行数据传输在同一子帧内的并发传输。
上述用户设备根据用户设备的传输能力选择当前传输的信道类 型, 具体包括: 如果所述用户设备具备 PUCCH和 PUSCH并行传输 的能力,所述用户设备同时选择调度请求传输和基于竟争的上行数据 传输;如果所述用户设备不具备 PUCCH和 PUSCH并行传输的能力, 所述用户设备选择调度请求传输或基于竟争的上行数据传输。
其中, 上述调度请求传输包括 D-SR传输, 当 D-SR传输和基于 竟争的上行数据传输互相沖突时,上述用户设备可以根据预设的默认 规则选择 D-SR传输或基于竟争的上行数据传输。该默认规则可以是: 用户设备默认选择 D-SR传输; 或用户设备默认选择所述基于竟争的 上行数据传输。
此外, 用户设备还可以根据预设的判断规则选择 D-SR传输或基 于竟争的上行数据传输。 具体地, 上述用户设备选择调度请求传输或 基于竟争的上行数据传输, 具体包括: 如果所述 D-SR传输的配置周 期大于预设数值,所述用户设备选择所述 D-SR传输;如果所述 D-SR 传输的配置周期不大于预设数值,所述用户设备选择所述基于竟争的 上行数据传输。
上述调度请求传输还包括 RA-SR传输过程中的随机接入前导传 输或 RA-SR传输过程中的上行数据传输。 上述用户设备根据用户设 备的传输能力选择当前传输的信道类型, 具体包括: 如果所述随机接 入前导传输与所述基于竟争的上行数据传输互相沖突,所述用户设备 选择所述基于竟争的上行数据传输; 如果所述 RA-SR传输过程中的 上行数据传输与所述基于竟争的上行数据传输互相沖突,所述用户设 备选择所述 RA-SR传输过程中的上行数据传输。
本发明实施例的技术方案具有以下优点,在多种上行数据请求和 发送过程并存的情况下, 基于 UE传输能力选择传输类型, 提高了传 输可靠性, 降低了传输时延。 当 D-SR传输和 CB传输沖突时,如果 UE具备 PUCCH和 PUSCH 同时传输的能力, 上行数据传输流程如图 2所示, 包括以下步骤: 步骤 201 , UE需要发送上行数据时, 等待 D-SR发送机会, 同时 开始监听 CB GRANT。
步骤 202, eNB向 UE发送 CB GRANT。
步骤 203, UE准备 CB传输, 解码 CB GRANT并对上行数据编 码。
步骤 204,如果在 CB GRANT时刻有 D-SR传输发生, UE在 CB GRANT时刻同时发起 D-SR传输和 CB传输。
如果 CB传输成功, 则执行步骤 205; 否则, 执行步骤 207。 步骤 205, eNB成功接收 CB传输时, 从 CB传输中获得 UE的 信息, 对相同时刻接收到的来自该 UE的 D-SR传输不做调度响应。
其中, UE的信息包括 C-RNTI ( Cell Network Temporary Identity, 小区无线网络临时标识)。
步骤 206, UE取消 D-SR传输。 执行完此步骤之后, 可以结束流 程。
步骤 207, UE在下一个 D-SR传输的时刻继续传输 D-SR。
步骤 208, eNB解码 D-SR并分配调度授权。
步骤 209, eNB向 UE返回调度授权。
步骤 210, UE处理解码调度授权, 对上行数据进行编码。
步骤 211 , UE向 eNB传输编码后的上行数据。
需要说明的是,本发明方法可以根据实际需要对各个步骤顺序进 行调整。
本发明实施例的技术方案具有以下优点,在多种上行数据请求和 发送过程并存的情况下, 基于 UE传输能力选择传输类型, 提高了传 输可靠性, 降低了传输时延。 当 D-SR传输和 CB传输沖突时, 如果 UE不具备 PUCCH和 PUSCH同时传输的能力, 上行数据传输流程如图 3所示, 包括以下 步骤:
步骤 301 , UE需要发送上行数据时, 等待 D-SR发送机会, 同时 开始监听 CB GRANT。
步骤 302, eNB向 UE发送 CB GRANT。
步骤 303, UE准备 CB传输, 解码 CB GRANT并对上行数据编 码。
步骤 304,如果在 CB GRANT时刻有 D-SR传输发生, UE在 CB GRANT时刻仅发起 CB传输。
如果 CB传输成功, 则执行步骤 305; 否则, 执行步骤 307。 步骤 305, eNB成功接收 CB传输时, 从 CB传输中获得 UE的 信息。
其中, UE的信息包括 C-RNTI。
步骤 306, UE取消 D-SR传输。 执行完此步骤之后, 可以结束流 程。
步骤 307, UE在下一个 D-SR传输的时刻继续传输 D-SR。
步骤 308, eNB解码 D-SR并分配调度授权。
步骤 309, eNB向 UE返回调度授权。
步骤 310, UE处理解码调度授权, 对上行数据进行编码。
步骤 311 , UE向 eNB传输编码后的上行数据。
需要说明的是,本发明方法可以根据实际需要对各个步骤顺序进 行调整。
本发明实施例的技术方案具有以下优点,在多种上行数据请求和 发送过程并存的情况下, 基于 UE传输能力选择传输类型, 提高了传 输可靠性, 降低了传输时延。 当 D-SR传输和 CB传输沖突时, 如果 UE不具备 PUCCH和 PUSCH同时传输的能力, 且 D-SR配置周期大于预设数值, 则上行 数据传输流程如图 4所示, 包括以下步骤:
步骤 401 , UE需要发送上行数据时, 等待 D-SR发送机会, 同时 开始监听 CB GRANT。
步骤 402, eNB向 UE发送 CB GRANT。
步骤 403, UE准备 CB传输, 解码 CB GRANT并对上行数据编 码。
步骤 404,如果在 CB GRANT时刻有 D-SR传输发生, UE在 CB GRANT时刻仅发起 D-SR传输。
步骤 405, eNB解码 D-SR并分配调度授权。
步骤 406, eNB向 UE返回调度授权。
步骤 407, UE处理解码调度授权, 对上行数据进行编码。
步骤 408 , UE向 eNB传输编码后的上行数据。
此外, eNB成功接收 CB传输时,从 CB传输中获得 UE的信息, 该 UE的信息包括 C-RNTL
需要说明的是,本发明方法可以根据实际需要对各个步骤顺序进 行调整。
本发明实施例的技术方案具有以下优点,在多种上行数据请求和 发送过程并存的情况下, 基于 UE传输能力选择传输类型, 提高了传 输可靠性, 降低了传输时延。 当 RACH过程中的 preamble ( Msgl )传输和 CB传输沖突时, 上行数据传输流程如图 5所示, 包括以下步骤:
步骤 501 , 同步状态下的 UE需要发送上行数据时, 初始化随机 接入过程, 同时开始监听 CB GRANT0
步骤 502, eNB向 UE发送 CB GRANT。
步骤 503, UE准备 CB传输, 解码 CB GRANT并对上行数据编 码。
步骤 504, 如果在发送 preamble时刻有 CB传输同时发生, UE 发起 CB传输, 并停止 RACH过程。
如果 CB传输成功, 则执行步骤 505; 否则, 执行步骤 506。 步骤 505, eNB成功接收 CB传输时, 从 CB传输中获得 UE的 信息。 执行完此步骤之后, 可以结束流程。
其中, UE的信息包括 C-RNTI。
步骤 506, UE选择随机接入 preamble和 PRACH资源。
步骤 507, UE利用 PRACH资源向 eNB发送所选的随机接入 preamble;
步骤 508, eNB计算定时提前量。
步骤 509, eNB向 UE发送随机接入响应。
其中, 随机接入响应中至少包含定时提前量信息和 UL grant。 步骤 510, UE在 UL grant上进行上行数据传输。
步骤 511 , eNB向 UE发送竟争解决消息。
步骤 512, UE根据竟争解决消息判断随机接入是否成功。
需要说明的是,本发明方法可以根据实际需要对各个步骤顺序进 行调整。
本发明实施例的技术方案具有以下优点,在多种上行数据请求和 发送过程并存的情况下, 基于 UE传输能力选择传输类型, 提高了传 输可靠性, 降低了传输时延。 当 RACH过程中的上行数据传输( Msg3 )和 CB传输沖突时, 如果 UE不具备 PUCCH和 PUSCH同时传输的能力, 则上行数据传 输流程如图 6所示, 包括以下步骤:
步骤 601 , 同步状态下的 UE需要发送上行数据时, 初始化随机 接入过程, 同时开始监听 CB GRANT0
步骤 602, UE利用 PRACH资源向 eNB发送所选的随机接入 preamble;
步骤 603, eNB计算定时提前量。
步骤 604, eNB向 UE发送随机接入响应。 其中, 随机接入响应中至少包含定时提前量信息和 UL grant。 步骤 605, UE确认随机接入响应接收成功, 停止对 CB GRANT 的监听。
步骤 606, 如果根据随机接入响应中携带的 UL grant进行的上行 数据传输与接收到的 CB GRANT指示的 CB传输位于相同的子帧,
UE在 UL grant上进行上行数据传输。
步骤 607 , eNB向 UE发送竟争解决消息。
步骤 608, UE根据竟争解决消息判断随机接入是否成功。
此外, eNB成功接收 CB传输时,从 CB传输中获得 UE的信息, 该 UE的信息包括 C-RNTL
需要说明的是,本发明方法可以根据实际需要对各个步骤顺序进 行调整。
本发明实施例的技术方案具有以下优点,在多种上行数据请求和 发送过程并存的情况下, 基于 UE传输能力选择传输类型, 提高了传 输可靠性, 降低了传输时延。
系统。
如图 7所述, 为本发明实施例七中的一种用户设备结构示意图, 包括:
调度请求模块 710, 用于在用户设备需要发送上行数据时, 向基 站设备发起调度请求传输。
竟争传输模块 720, 用于在用户设备需要发送上行数据时, 向基 站设备发起基于竟争的上行数据传输。
选择模块 730, 用于在所述调度请求模块 710发起的调度请求传 输和所述竟争传输模块 720发起的基于竟争的上行数据传输互相沖 突时, 根据用户设备的传输能力选择当前传输的信道类型, 并通知所 述调度请求模块和 /或所述竟争传输模块按照所述信道类型发送上行 数据或发送调度请求。 上述选择模块 730,用于在所述用户设备具备 PUCCH和 PUSCH 并行传输的能力时,同时选择调度请求传输和基于竟争的上行数据传 输; 在所述用户设备不具备 PUCCH和 PUSCH并行传输的能力时, 选择调度请求传输或基于竟争的上行数据传输。
其中, 上述调度请求传输包括 D-SR传输, 上述选择模块 730, 可以用于选择所述 D-SR传输, 也可以用于选择所述基于竟争的上行 数据传输。
具体地, 上述选 4奪模块 730, 用于在所述 D-SR传输的配置周期 大于预设数值时, 选择所述 D-SR传输; 在所述 D-SR传输的配置周 期不大于预设数值时, 选择所述基于竟争的上行数据传输。
上述调度请求传输还包括 RA-SR传输过程中的随机接入前导传 输或 RA-SR传输过程中的上行数据传输, 上述选择模块 730, 用于 在所述随机接入前导传输与所述基于竟争的上行数据传输互相沖突 时, 选择所述基于竟争的上行数据传输; 在所述 RA-SR传输过程中 的上行数据传输与所述基于竟争的上行数据传输互相沖突时,选择所 述 RA-SR传输过程中的上行数据传输。
本发明实施例的技术方案具有以下优点,在多种上行数据请求和 发送过程并存的情况下, 基于 UE传输能力选择传输类型, 提高了传 输可靠性, 降低了传输时延。 如图 8所示,为本发明实施例八中的一种上行数据传输系统结构 示意图, 包括:
用户设备 810, 在需要发送上行数据时, 向基站设备 820发起调 度请求传输和基于竟争的上行数据传输;如果所述调度请求传输和所 述基于竟争的上行数据传输互相沖突,所述用户设备根据用户设备的 传输能力选择当前传输的信道类型,并按照所述信道类型发送上行数 据或发送调度请求。
上述用户设备 810,用于在所述用户设备具备 PUCCH和 PUSCH 并行传输的能力时,同时选择调度请求传输和基于竟争的上行数据传 输; 在所述用户设备不具备 PUCCH和 PUSCH并行传输的能力时, 选择调度请求传输或基于竟争的上行数据传输。
所述调度请求传输包括随机接入调度请求 RA-SR传输过程中的 随机接入前导传输或 RA-SR传输过程中的上行数据传输, 上述用户 设备 810, 用于在所述随机接入前导传输与所述基于竟争的上行数据 传输互相沖突时,选择所述基于竟争的上行数据传输;在所述 RA-SR 传输过程中的上行数据传输与所述基于竟争的上行数据传输互相沖 突时, 选择所述 RA-SR传输过程中的上行数据传输。
基站设备 820, 用于接收来自所述用户设备的上行数据或发送调 度请求。
本发明实施例的技术方案具有以下优点,在多种上行数据请求和 发送过程并存的情况下, 基于 UE传输能力选择传输类型, 提高了传 输可靠性, 降低了传输时延。 通过以上的实施方式的描述,本领域的技术人员可以清楚地了解 到本发明可借助软件加必需的通用硬件平台的方式来实现, 当然也可 以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解, 软件产品的形式体现出来, 该计算机软件产品存储在一个存储介质 中, 包括若干指令用以使得一台终端设备(可以是手机,个人计算机, 服务器, 或者网络设备等)执行本发明各个实施例所述的方法。
以上所述仅是本发明的优选实施方式, 应当指出, 对于本技术领 域的普通技术人员来说, 在不脱离本发明原理的前提下, 还可以做出 若干改进和润饰, 这些改进和润饰也应视本发明的保护范围。
本领域技术人员可以理解实施例中的装置中的模块可以按照实 施例描述进行分布于实施例的装置中,也可以进行相应变化位于不同 于本实施例的一个或多个装置中。 上述实施例的模块可以集成于一 体, 也可以分离部署, 可以合并为一个模块, 也可以进一步拆分成多 个子模块。 上述本发明实施例序号仅仅为了描述, 不代表实施例的优劣。 以上公开的仅为本发明的几个具体实施例, 但是, 本发明并非局 限于此,任何本领域的技术人员能思之的变化都应落入本发明的保护 范围。

Claims

权利要求
1、 一种上行数据传输方法, 其特征在于, 包括以下步骤: 用户设备需要发送上行数据时,向基站设备发起调度请求传输和 基于竟争的上行数据传输;
如果所述调度请求传输和所述基于竟争的上行数据传输互相沖 突, 所述用户设备根据用户设备的传输能力选择当前传输的信道类 型, 并按照所述信道类型发送上行数据或发送调度请求。
2、 如权利要求 1所述的方法, 其特征在于, 所述用户设备根据 用户设备的传输能力选择当前传输的信道类型, 具体包括:
如果所述用户设备具备物理上行控制信道 PUCCH和物理上行共 享信道 PUSCH并行传输的能力, 所述用户设备同时选择调度请求传 输和基于竟争的上行数据传输;
如果所述用户设备不具备 PUCCH和 PUSCH并行传输的能力, 所述用户设备选择调度请求传输或基于竟争的上行数据传输。
3、 如权利要求 2所述的方法, 其特征在于, 所述调度请求传输 包括 D-SR传输,
所述用户设备选择调度请求传输或基于竟争的上行数据传输,具 体包括:
所述用户设备选择所述 D-SR传输。
4、 如权利要求 2所述的方法, 其特征在于, 所述调度请求传输 包括 D-SR传输,
所述用户设备选择调度请求传输或基于竟争的上行数据传输,具 体包括:
所述用户设备选择所述基于竟争的上行数据传输。
5、 如权利要求 2所述的方法, 其特征在于, 所述调度请求传输 包括 D-SR传输,
所述用户设备选择调度请求传输或基于竟争的上行数据传输,具 体包括: 如果所述 D-SR传输的配置周期大于预设数值, 所述用户设备选 择所述 D-SR传输;
如果所述 D-SR传输的配置周期不大于预设数值, 所述用户设备 选择所述基于竟争的上行数据传输。
6、 如权利要求 1所述的方法, 其特征在于, 所述调度请求传输 包括随机接入调度请求 RA-SR传输过程中的随机接入前导传输或 RA-SR传输过程中的上行数据传输,
所述如果所述调度请求传输和所述基于竟争的上行数据传输互 相沖突,所述用户设备根据用户设备的传输能力选择当前传输的信道 类型, 具体包括:
如果所述随机接入前导传输与所述基于竟争的上行数据传输互 相沖突, 所述用户设备选择所述基于竟争的上行数据传输;
如果所述 RA-SR传输过程中的上行数据传输与所述基于竟争的 上行数据传输互相沖突, 所述用户设备选择所述 RA-SR传输过程中 的上行数据传输。
7、 一种用户设备, 其特征在于, 包括:
调度请求模块, 用于在用户设备需要发送上行数据时, 向基站设 备发起调度请求传输;
竟争传输模块, 用于在用户设备需要发送上行数据时, 向基站设 备发起基于竟争的上行数据传输;
选择模块,用于在所述调度请求模块发起的调度请求传输和所述 竟争传输模块发起的基于竟争的上行数据传输互相沖突时,根据用户 设备的传输能力选择当前传输的信道类型,并通知所述调度请求模块 和 /或所述竟争传输模块按照所述信道类型发送上行数据或发送调度 请求。
8、 如权利要求 7所述的用户设备, 其特征在于,
所述选择模块, 用于在所述用户设备具备 PUCCH和 PUSCH并 行传输的能力时, 同时选择调度请求传输和基于竟争的上行数据传 输; 在所述用户设备不具备 PUCCH和 PUSCH并行传输的能力时, 选择调度请求传输或基于竟争的上行数据传输。
9、 如权利要求 8所述的用户设备, 其特征在于, 所述调度请求 传输包括 D-SR传输,
所述选择模块, 用于选择所述 D-SR传输。
10、 如权利要求 8所述的用户设备, 其特征在于, 所述调度请求 传输包括 D-SR传输,
所述选择模块, 用于选择所述基于竟争的上行数据传输。
11、 如权利要求 8所述的用户设备, 其特征在于, 所述调度请求 传输包括 D-SR传输,
所述选择模块, 用于在所述 D-SR传输的配置周期大于预设数值 时, 选择所述 D-SR传输; 在所述 D-SR传输的配置周期不大于预设 数值时, 选择所述基于竟争的上行数据传输。
12、 如权利要求 7所述的用户设备, 其特征在于, 所述调度请求 传输包括 RA-SR传输过程中的随机接入前导传输或 RA-SR传输过程 中的上行数据传输,
所述选择模块,用于在所述随机接入前导传输与所述基于竟争的 上行数据传输互相沖突时, 选择所述基于竟争的上行数据传输; 在所 述 RA-SR传输过程中的上行数据传输与所述基于竟争的上行数据传 输互相沖突时, 选择所述 RA-SR传输过程中的上行数据传输。
13、 一种上行数据传输系统, 其特征在于, 包括:
用户设备, 在需要发送上行数据时, 向基站设备发起调度请求传 输和基于竟争的上行数据传输;如果所述调度请求传输和所述基于竟 争的上行数据传输互相沖突,所述用户设备根据用户设备的传输能力 选择当前传输的信道类型,并按照所述信道类型发送上行数据或发送 调度请求;
基站设备, 用于接收来自所述用户设备的上行数据或调度请求。
14、 如权利要求 13所述的系统, 其特征在于, 所述用户设备, 用于在所述用户设备具备 PUCCH和 PUSCH并 行传输的能力时, 同时选择调度请求传输和基于竟争的上行数据传 输; 在所述用户设备不具备 PUCCH和 PUSCH并行传输的能力时, 选择调度请求传输或基于竟争的上行数据传输。
15、 如权利要求 13所述的系统, 其特征在于, 所述调度请求传 输包括随机接入调度请求 RA-SR传输过程中的随机接入前导传输或 RA-SR传输过程中的上行数据传输,
所述用户设备,用于在所述随机接入前导传输与所述基于竟争的 上行数据传输互相沖突时, 选择所述基于竟争的上行数据传输; 在所 述 RA-SR传输过程中的上行数据传输与所述基于竟争的上行数据传 输互相沖突时, 选择所述 RA-SR传输过程中的上行数据传输。
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