WO2011124119A1 - 一种基于竞争的上行数据传输方法及装置 - Google Patents
一种基于竞争的上行数据传输方法及装置 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
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Definitions
- the invention belongs to the field of communication technologies, and in particular relates to a method and device for uplink data transmission based on competition. Background technique
- the UE User Equipment
- the UE In the LTE-Advanced (Long Term Evolution) system, in order to support a shorter transition delay from the Dormant state to the Active state (Active), the UE (User Equipment) in the dormant state has The RRC (Adio Resource Control) connection between the eNB (evolved Node B) and the established radio bearer, but is currently in a temporary sleep state due to no uplink resource allocation and data transmission.
- RRC Adio Resource Control
- the state transition process triggered by the uplink data of the UE in the synchronization state includes the following steps:
- Step 11 The UE delays waiting for the next time to send an SR (Scheduling Request).
- Step 12 The UE sends a scheduling request.
- Step 13 The eNB decodes the scheduling request and allocates a scheduling grant.
- Step 14 The eNB transmits a scheduling grant.
- Step 15 The UE performs processing.
- Step 16 The UE transmits uplink data.
- the optimal delay of each step is as follows:
- the current 3GPP (3rd Generation Partnership Project) LTE-A aims to eliminate the impact of the DRX (Discontinuous Reception) cycle, and the transition time from the sleep state to the active state is 10 milliseconds. For this purpose, the state transition process needs further improvement.
- CB (Contention Based) data transmission is an effective method. The main idea of this method is that the UE can be allowed to transmit uplink data on the competing uplink resources when the UE does not currently have dedicated resources.
- Step 21 The base station notifies the UE of the basic configuration of the uplink transmission based on the contention, including a scheduling identifier CB-RNTI (Contention Based - Radio Network Temporary Identity), and the like;
- CB-RNTI Contention Based - Radio Network Temporary Identity
- Step 22 The UE receives and stores the basic configuration information of the uplink transmission based on the contention;
- Step 23 The base station sends and dispatches a competition resource
- Step 24 The UE interprets the scheduling command and organizes uplink transmission data according to the allocated resources.
- Step 25 The UE sends an uplink transmission on the contention-based uplink resource allocated by the base station.
- Step 26 The base station performs a contention resolution according to the contention-based uplink transmission sent by the UE, and feeds the result back to the UE that completes the contention resolution.
- the first two steps are the initial stage, that is, the interaction of the basic configuration information is completed.
- the subsequent steps are the stages in which the uplink data uses the competitive resources for transmission when the basic information needs to be used.
- the present invention provides a method and apparatus for uplink data transmission based on competition, which solves the problem of reducing the conversion time of the state transition process in the prior art and not ensuring the overall performance of the uplink data transmission.
- a competition-based uplink data transmission method provided by the present invention includes:
- the Medium MAC (Medium Access Control) layer acquires configuration information, where the configuration information is used to indicate whether uplink data of each uplink logical channel is allowed to use the contention resource;
- the UE MAC layer will allow the uplink data of the uplink logical channel using the contention resources to be transmitted on the authorized contention resources, and prohibit the uplink data of the uplink logical channel that does not allow the use of the contention resources to be authorized.
- the competition is transmitted on resources.
- the invention also provides a contention-based uplink data transmission device comprising:
- An obtaining module at the MAC layer configured to obtain configuration information, where the configuration information is used to indicate whether uplink data of each uplink logical channel is allowed to use the contention resource;
- control module at the MAC layer configured to transmit uplink data of an uplink logical channel that uses the contention resource on the authorized contention resource when the contention resource needs to be used, and prohibit the uplink logic that does not allow the use of the contention resource
- the uplink data of the channel is transmitted on the authorized contention resources.
- the beneficial effects of the present invention are as follows: Since the processing of the contention resources is allowed to be separately processed, the uplink data that can obtain a larger gain by shortening the delay improves the efficiency and success rate of using the competitive resources, and avoids other uplink data. The improvement of the collision probability on the competition resources and the guarantee of the transmission success rate improve the performance of the uplink data transmission as a whole. DRAWINGS
- 1 is a flow chart of a method for triggering state transition of an uplink data in the prior art
- FIG. 2 is a flowchart of a method for transmitting uplink data on a coordinated uplink resource in the prior art
- FIG. 3 is a flowchart of a method according to a first embodiment of the present invention
- Figure 5 is a flowchart of a method according to a third embodiment of the present invention.
- FIG. 6 is a flowchart of a method according to a fourth embodiment of the present invention.
- Figure 7 is a flowchart of a method according to a fifth embodiment of the present invention.
- Figure 8 is a flowchart of a method according to a sixth embodiment of the present invention.
- FIG. 9 is a flowchart of a method according to a seventh embodiment of the present invention.
- FIG. 10 is a structural diagram of an uplink data transmission apparatus based on contention according to an embodiment of the present invention. detailed description
- the configuration information is sent by the network side or the UE side high layer, and the configuration information is used to notify the UE of the uplink data of each uplink logical channel of the MAC layer to allow the use of the contention resources for the uplink logical channel.
- the UE MAC transmits the uplink data of the uplink logical channel that uses the contention resources on the authorized contention resources, and prohibits the uplink data of the uplink logical channel that does not allow the use of the contention resources to be transmitted on the authorized contention resources.
- the method for notifying the uplink data of the uplink logical channel of the UE MAC layer to allow the use of the contention resource may be:
- the configuration signaling sent to the UE carries the configuration information
- the UE RRC layer determines the corresponding configuration information according to the configuration signaling of the network side when the uplink logical channel is established, and then sends the configuration information to the UE MAC layer in the form of an inter-layer primitive; or
- the UE RLC (Radio Link Control Protocol) layer and/or the Packet Data Convergence Protocol (PDCP) layer transmits the indication information carrying the configuration information to the UE MAC layer.
- PDCP Packet Data Convergence Protocol
- the configuration principle of whether the uplink data allows the use of the contention resources is: The uplink data that is expected to shorten the delay and can endure the competition resource transmission characteristics allows the use of the competition resources.
- AM Acknowledged Mode
- UM Unacknowledged Mode
- TM Transparent Mode
- TCP Transmission Control Protocol
- the AM data in the uplink logical channel (bearing TCP feedback packet) of the download service is allowed to be used.
- Other AM data is not allowed to be used, and UM data and TM data are not allowed.
- the size of the AM data to be transmitted is less than or equal to a certain threshold, or the AM data that can be carried in one or several authorized contention resources (ie, the competition Grants) can use the contention resources; Delay, can withstand the uplink data of the transmission characteristics of the competitive resources May use.
- the uplink data transmission method based on competition in the first embodiment of the present invention includes the following steps:
- Step 101 When performing the uplink logical channel configuration, the network side sends configuration signaling to the UE, and configures the uplink logical channel 1 to indicate whether the uplink data of the uplink logical channel 1 is allowed to use the contention resource.
- the configuration information of whether the uplink data of the uplink logical channel 1 is allowed to use the contention resource may be directly carried by the configuration signaling, and the UE MAC layer acquires the configuration information.
- the UE RRC layer sends the layer MAC primitive to the UE MAC layer when the uplink logical channel is established, thereby indicating whether the uplink data of the logical channel 1 is allowed to use the contention resource.
- the uplink logical channel 1 is taken as an example.
- the network side configures each uplink logical channel, for example, configuration.
- the uplink logical channel 1 is configured to allow or disallow the use of the contention resource for the uplink data of the uplink logical channel
- the uplink logical channel 2 is configured to allow or not use the contention resource for the uplink data of the uplink logical channel, and configure the uplink logical channel 3 as the Uplink data of the uplink logical channel allows or disallows the use of competing resources.
- Step 102 If the uplink logical channel 1 is configured as the uplink data of the uplink logical channel, the contention resource is allowed to be used. When the basic resource usage condition is met and the contention resource needs to be used, the UE MAC layer belongs to the uplink data according to the arrival. Uplink logical channel 1, configured as uplink data of the uplink logical channel, allows the use of competing resources to obtain the available Grants that are closest to the current time.
- Step 103 The UE MAC layer transmits the uplink data of the uplink logical channel 1 on the competition Grants.
- the competition Grants it is determined whether there is uplink data of the uplink channel that does not allow the use of the contention resource, for example, uplink data of the uplink logical channel 2 (assuming the uplink logical channel) 2 uplink data does not allow the use of competitive resources.) If it needs to be sent on the competition Grants, then the use of the competition Grants is abandoned; if not (assuming the uplink data of the uplink logical channel 2 allows the use of competitive resources), then the competition The uplink data of the uplink logical channels 1, 2, and 3 is transmitted on the Grants. That is, it is assumed that all the logical channels 1, 2, and 3 are respectively configured to allow the uplink data of the uplink logical channel to use the contention resources. In this case, the uplink data of the uplink logical channel that does not allow the use of the contention resources needs to be transmitted, so authorization is performed. The uplink data of each uplink logical channel can be transmitted on the contention resource.
- the process of transmitting uplink data on the competition Grants may be: the UE MAC layer performs uplink transmission data organization by performing HARQ entity and process operations according to the indication of the Grants, and then performs uplink data that can be transmitted on the contention resources.
- the MAC control unit to be carried such as BSR (Buffer Status Report), C-RNTK Cell-Radio Network Temporary Identifier, etc., completes data multiplexing and PDU ( Protocol Data Unit) , the protocol data unit is generated, and the generated MAC PDU is sent on the competition Grants.
- the UE does not allow the use of the contention resources as long as there is data that does not allow the use of the contention resources. Only when the basic contention conditions of the contention resources are met, the competition is acquired at this time, and The competition on Grants transmits data that allows the use of competing resources.
- the second embodiment of the present invention is based on a competitive uplink data transmission method including the following steps:
- Step 201 When performing the uplink logical channel channel configuration, the network side sends a configuration signal to the UE, and configures the uplink logical channels 1 and 2 to indicate whether the uplink data of the uplink logical channels 1 and 2 is allowed to use the contention resources.
- the UE RRC layer can also be used to inform the UE of the MAC layer through inter-layer interaction.
- Step 202 When the basic competitive resource use condition is met, and the competitive resource needs to be used, due to the logic
- the channel 1 is configured such that the uplink data of the uplink logical channel does not allow the use of the contention resources, and the UE does not trigger the process of using the contention resource transmission.
- the data is triggered by the logical channel 1 and the BSR is triggered. Further, since there is no uplink resource, the SR is triggered.
- the competition resource usage conditions need to use the competition resources. After determining that the competition resources need to be used, since the logical channel 1 is configured such that the uplink data of the uplink logical channel does not allow the use of the competition resources, the competition Grants will not be obtained. It also does not trigger the transmission of the use of competitive resources.
- Step 203 The uplink data of the logical channel 2 arrives. At this time, the basic contention of the contention resources is not satisfied, and the transmission using the contention resources cannot be triggered.
- the data of the higher priority logical channel 1 in the cache does not satisfy the BSR trigger condition, and the SR is not triggered. Therefore, the basic contention condition of the contention resource is not satisfied at this time. Even if the logical channel 2 is configured such that the uplink data of the uplink logical channel allows the use of the contention resources, the UE cannot trigger the transmission using the contention resources.
- the third embodiment of the present invention is based on a competitive uplink data transmission method including the following steps:
- Step 301 When performing the uplink logical channel channel configuration, the network side sends a configuration signal to the UE, and configures the uplink logical channel 1 to indicate whether the uplink data of the uplink logical channel 1 is allowed to use the contention resource.
- the UE RRC layer can also be used to inform the UE of the MAC layer through inter-layer interaction.
- Step 302 When the contention resource needs to be used, the UE MAC layer directly obtains the authorized contention resource. At this time, the UE MAC layer does not distinguish whether the uplink data of the logical channel 1 is allowed to use the contention resource, even if the logical channel 1 is configured such that the uplink data of the uplink logical channel does not allow the use of the contention resource, the UE
- the MAC layer still gets the latest available Grants from the current time.
- Step 303 When the basic resource usage condition is met, and the contention resource needs to be used, since the uplink logical channel 1 is configured such that the uplink data of the uplink logical channel does not allow the use of the contention resource, the uplink of the uplink logical channel 1 is prohibited.
- the data is transmitted on the competition Grants and will be used as the MAC of the control information.
- the control unit transmits on the competition Grants.
- the MAC PDU includes only the MAC control unit as the control information, and The generated MAC PDU is sent on the competition Grants.
- the fourth embodiment of the present invention is based on a competitive uplink data transmission method including the following steps:
- Step 401 When performing the uplink logical channel configuration, the network side sends configuration signaling to the UE, and configures the uplink logical channel 1 to indicate whether the uplink data of the uplink logical channel 1 is allowed to use the contention resource.
- the UE RRC layer can also be used to inform the UE of the MAC layer through inter-layer interaction.
- Step 402 When the contention resource needs to be used, the UE MAC layer directly obtains the competition Grants.
- the UE side MAC layer does not distinguish whether the uplink data of the logical channel 1 allows the use of the contention resource. Even if the logical channel 1 is configured such that the uplink data of the uplink logical channel does not allow the use of the contention resources, the UE still acquires the closest time to the current time. Available competitions Grants.
- Step 403 After obtaining the competition Grants, determine whether the uplink logical channel 1 is configured to allow the uplink data of the uplink logical channel to use the contention resources, and if yes, transmit the uplink data of the uplink logical channel 1 on the competition Grants. Otherwise give up the use of the competition Grants.
- the uplink data of the uplink logical channel 1 needs to be transmitted, and then the judgment is performed.
- the uplink data of the uplink logical channel 2 needs to be transmitted, and the uplink logical channel 2 is configured such that the uplink data of the uplink logical channel allows the use of the contention resources to transmit the uplink data of the uplink logical channel 2 on the contention Grants.
- This step may also be: After obtaining the competition Grants, it is determined whether the logical channel 1 is configured such that the uplink data of the uplink logical channel does not allow the use of the contention resources, and if so, the use of the competition Grants is abandoned, otherwise the competition is on the Grants. The uplink data of logical channel 1 is transmitted.
- the uplink data is transmitted on the competition Grants, and the HARQ entity and the process operations may be performed in the same manner as before, for the user data that can be transmitted on the contention resources and the MAC control list that needs to be carried.
- the elements such as BSR, C-RNTI, etc., complete the multiplexing of data and the generation of PDUs, and send the generated MAC PDUs on the competition Grants.
- the fifth embodiment of the present invention is based on a competitive uplink data transmission method including the following steps:
- Step 501 When performing the uplink logical channel channel configuration, the network side sends a configuration signal to the UE, and configures all the uplink logical channels to indicate whether the uplink data of all the uplink logical channels is allowed to use the contention resources.
- the UE RRC layer can also be used to inform the UE of the MAC layer through inter-layer interaction.
- all uplink logical channels are uplink logical channel 1, uplink logical channel 2, and uplink logical channel 3.
- the configuration information indicates whether the uplink data of logical channel 1, uplink logical channel 2, and uplink logical channel 3 all allow the use of the contention resources.
- Step 502 Allow the use of the contention resources according to the uplink data of all the uplink logical channels of the UE.
- the UE MAC layer directly transmits the uplink data of the current uplink logical channel on the contention Grants.
- the current uplink logical channel is configured as the uplink data of the uplink logical channel to allow the use of the contention resources, or the use of the contention resources.
- the UE MAC layer does not trigger the transmission using the contention resources when the contention resources need to be used.
- the uplink data is transmitted on the competition Grants, and the HARQ entity and the process operations may be performed in the same manner as before, for the user data that can be transmitted on the contention resources and the MAC control units that need to be carried, such as BSR, C-RNTI, etc.
- the multiplexing of the data and the generation of the PDU are completed, and the generated MAC PDU is sent on the competition Grants.
- the solution is different from the previous solution in that, in this embodiment, all the uplink logical channels for the UE are configured.
- the UE MAC layer is configured according to the configuration information.
- the uplink data is directly transmitted on the competition Grants.
- the sixth embodiment of the present invention is based on a competitive uplink data transmission method including the following steps. Step:
- Step 601 When performing the uplink logical channel channel configuration, the network side sends configuration signaling to the UE, and configures the uplink logical channel 1 to indicate whether uplink data of the uplink logical channel 1 is allowed to use the contention resource, and configure signaling. It carries a limit threshold for the size of the uplink data.
- Step 602 When the contention resource needs to be used, if the uplink data of the uplink logical channel 1 is allowed to use the contention resource and the uplink data size is less than or equal to a predetermined threshold, or can be transmitted on the recent contention Grants, or It can be transmitted on the competition Grants in 2 TTIs, and the uplink data of the uplink logical channel 1 is transmitted on the competition Grants.
- the uplink data size is greater than the predetermined threshold, or may not be transmitted on the nearest competitive Grants, or may not be in the two Grants of the TTI. Transfer, then give up the use of the competition Grants.
- the two TTIs are only preferred embodiments of the present embodiment, and the number N of TTIs can be set according to actual conditions.
- This parameter can also be configured on the network side or pre-defined.
- the uplink data in this step can be AM data.
- the uplink data is transmitted on the competition Grants, and the HARQ entity and the process operations may be performed in the same manner as before, for the user data that can be transmitted on the contention resources and the MAC control units that need to be carried, such as BSR, C-RNTI, etc.
- the multiplexing of the data and the generation of the PDU are completed, and the generated MAC PDU is sent on the competition Grants.
- the seventh embodiment of the present invention is based on a competitive uplink data transmission method including the following steps:
- Step 701 The indication information sent by the UE RLC and/or the PDCP to the UE MAC layer indicates, for the uplink logical channel 1, whether the uplink data of the uplink logical channel is allowed to use the contention resource.
- the UE LC and/or the PDCP adds an lbit indication to the data buffer information that is exchanged with the MAC layer, and is used to indicate whether the uplink data of the uplink logical channel 1 is allowed to use the contention transmission, and the information may be obtained from the network side configuration. It can also be based on some predefined principles of the order, such as AM data permission, UM and TM data not allowed, and so on.
- Step 702 When the contention resource needs to be used, if the uplink data of the uplink logical channel 1 is allowed to use the contention resource and the uplink data size is less than or equal to a predetermined threshold, or can be transmitted on the recent contention Grants, or It can be transmitted on the competition Grants in the two TTIs, and the uplink data of the uplink logical channel 1 is transmitted on the Grants.
- the uplink data of the uplink logical channel 1 is allowed to use the contention resource, and the uplink data size is greater than the predetermined threshold, or cannot be transmitted on the recent contention Grants, or cannot be in the 2 TTIs Conquer the transmission on Grants and abandon the use of the competition Grants.
- the data size of the uplink logical channel 1 can be directly indicated by the PDCP or the RLC to the MAC layer, because the indication information sent by the UE RLC and/or the PDCP to the UE MAC layer is adopted.
- the competition Grants for uplink data transmission only the first arriving RLC SDU (Service Data Unit) is transmitted, and the PDCP or RLC only indicates the size of the first arriving RLC SDU.
- the LC does not perform segmentation on the SDU or the number of SDU packets carried on the contention resource is less than 3 when grouping the uplink data of the uplink logical channel 1 that needs to use the contention Grants transmission.
- the three SDUs are only preferred embodiments of the present embodiment.
- the number of SDUs may be set to M according to actual conditions.
- the parameters may be network side configuration or pre-defined, and the uplink data at the RLC layer is SDU.
- the uplink data is transmitted on the competition Grants, and the HARQ entity and the process operations may be performed in the same manner as before, for the user data that can be transmitted on the contention resources and the MAC control units that need to be carried, such as BSR, C-RNTI, etc.
- the multiplexing of the data and the generation of the PDU are completed, and the generated MAC PDU is sent on the competition Grants.
- an embodiment of the present invention further provides an uplink data transmission device based on competition. Since the principle of solving the problem is similar to the method for uplink data transmission based on competition, the implementation of the device can be seen. The implementation of the method, the repetition will not be repeated.
- the uplink data transmission apparatus based on the competition in the embodiment of the present invention includes:
- the obtaining module 801 of the UE MAC layer is configured to obtain configuration information, where configuration information is used to indicate Whether the uplink data of each uplink logical channel allows the use of the contention resources;
- the control module 802 of the UE MAC layer is configured to: when the contention resource needs to be used, transmit the uplink data of the uplink logical channel that uses the contention resource on the authorized contention resource, and prohibit the use of the contention resource.
- the uplink data of the uplink logical channel is transmitted on the authorized contention resources.
- the obtaining module 801 obtains the configuration information carried in the configuration signaling sent by the network side when performing the uplink logical channel configuration, or obtains the configuration information of the network side when the RRC layer of the UE establishes the uplink logical channel.
- the configuration information obtained by the obtaining module 801 is for a single uplink logical channel, and is used to indicate whether the uplink data of the uplink logical channel allows the use of the contention resources.
- the control module 802 needs to use the contention resource, if the uplink logical channel to which the uplink data used to trigger the contention resource belongs is configured to allow the uplink data of the uplink logical channel to use the contention resource, the authorization is obtained.
- the control module 802 needs to use the contention resource, if the first uplink logical channel to which the data used to trigger the contention resource belongs is configured as the uplink data of the uplink logical channel, the contention resource is not allowed to be used, If the transmission of the contention resource is used, if the uplink data of the second uplink logical channel of the contention resource is allowed to arrive, the condition for using the contention resource is not satisfied at this time, and the transmission using the contention resource is not triggered.
- the control module 802 directly obtains the authorized contention resource when the contention resource needs to be used, and if the uplink logical channel to which the data to be transmitted belongs is configured, the uplink data of the uplink logical channel is not allowed.
- the contention resource is used, the data to be transmitted is prohibited from being transmitted on the authorized contention resource, and the MAC control unit as the control information is transmitted on the authorized contention resource.
- the control module 802 directly obtains the authorized contention resource when the contention resource needs to be used, and then determines whether the uplink data of the uplink logical channel that allows the use of the contention resource needs to be transmitted, and if so, the authorized contention.
- the resource is transmitted, otherwise the use of the authorized contention resource is abandoned, or when the contention resource is needed, the authorized contention resource is directly obtained, and then it is determined whether there is an uplink data of the uplink logical channel that does not allow the use of the contention resource to be transmitted. If not, transmit uplink data of the uplink logical channel that allows the use of the contention resource on the authorized contention resource, and if so, abandon the use of the authorized contention resource.
- the obtaining module 801 obtains configuration information for all uplink logical channels, and indicates whether uplink data of all uplink logical channels is allowed to use the contention resources;
- control module 802 allows the use of the contention resources according to the uplink data of all the uplink logical channels.
- the uplink data of the uplink logical channel is directly transmitted on the authorized contention resources, according to not all uplink logic.
- the uplink data of the channel allows the use of competing resources, and does not trigger the transmission of the use of the competing resources when the competing resources need to be used.
- control module 802 does not perform the segmentation operation or the uplink data SDU of the radio link control protocol layer when the radio link control protocol layer groups the uplink data that needs to be used for the authorized resource transmission.
- the number of SDU packets carried on the contention resource is less than the threshold.
- embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
- computer usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
- the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
- the uplink data that can obtain a larger gain by shortening the delay is improved according to whether or not the use of the competitive resources is allowed, the efficiency and success rate of the use of the competitive resources are improved, and other uplink data is avoided to collide with the competition resources. The probability is increased and the transmission success rate is guaranteed, which improves the performance of the uplink data transmission as a whole.
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Description
一种基于竟争的上行数据传输方法及装置 本申请要求在 2010年 4月 6日提交中国专利局、 申请号为 201010141232.0、发 明名称为"一种基于竟争的上行数据传输方法及装置"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
本发明属于通信技术领域, 特别涉及一种基于竟争的上行数据传输方法及 装置。 背景技术
在 LTE- Advanced ( Long Term Evolution, 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, 处于休眠状态 的 UE ( User Equipment, 用户设备 )具有同 eNB ( evolved Node B, 演进型基站) 之间的 RRC ( adio Resource Control, 无线资源控制)连接以及已经建立的无线 承载, 但由于没有上行资源分配和数据传输, 当前处于暂时的休眠状态。
如图 1所示,处于同步状态 UE的上行数据触发的状态转换流程包括如下步 骤:
步骤 11 : UE延时等待下一个发送 SR ( Scheduling Request, 调度请求 ) 的 时间。
步骤 12: UE发送调度请求。
步骤 13: eNB解码调度请求并分配调度授权。
步骤 14: eNB传输调度授权。
步骤 15: UE进行处理。
步骤 16: UE传输上行数据。
其中, 按照最小的时延和周期, 并且不考虑传输错误, 各步骤的最佳时延
估算如下:
表 1
当前 3GPP ( 3rd Generation Partnership Project,第三代移动通信标准化组织) LTE-A的目标是排除 DRX( Discontinuous reception, 非连续接收)周期的影响, 从休眠状态到激活状态的转换时间为 10毫秒。 为了这个目标, 状态转换过程需 要进一步改进。 CB ( Contention Based, 基于竟争) 的数据传输是一种有效的方 法。 该方法的主要思想是当 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。
其流程如图 2所示, 包括如下步骤:
步骤 21 : 基站通知 UE 基于竟争的上行传输基本配置, 包括调度标识 CB-RNTI ( Contention Based - Radio Network Temporary Identity, 基于竟争 -无线 网络临时标识符)等;
步骤 22: UE接收并存储基于竟争的上行传输基本配置信息;
步骤 23: 基站下发调度竟争资源;
步骤 24: UE解读调度命令并根据分配的资源组织上行传输数据;
步骤 25: UE在基站分配的基于竟争的上行资源上发送上行传输; 步骤 26: 基站根据 UE发送的基于竟争的上行传输进行竟争解决并将结果 反馈给完成竟争解决的 UE。
其中前 2 个步骤为开始阶段, 即完成基本配置信息的交互, 后续步骤为配 置完基本信息后, 在需要使用竟争资源时, 上行数据使用竟争资源进行传输的 阶段。
按照这样的流程 , 各部分的最佳时延分析如下:
表 2
由表 1和表 2的比较可知, 釆用在竟争资源上传输的方式, 可减少状态转 换过程的转换时间, 可是由于在竟争资源上的传输无法进行传统的 HARQ ( Hybrid- ARQ , 混合自动重传请求 ) 重传, 享受不到重传软合并增益, 再加上 碰撞的发生, 导致竟争资源上的传输成功率无法很好的保证, 可见现有技术的 不足在于: 在减少状态转换过程的转换时间的同时, 不能很好的保证上行数据 传输的整体性能。
发明内容
本发明提供一种基于竟争的上行数据传输方法及装置, 用以解决现有技术 中存在的在减少状态转换过程的转换时间的同时, 不能很好的保证上行数据传 输整体性能的问题。
本发明提供的一种基于竟争的上行数据传输方法包括:
UE MAC ( Medium Access Control, 媒体接入控制)层获取配置信息, 其中 配置信息用于指示各上行逻辑信道的上行数据是否允许使用竟争资源;
在需要使用竟争资源时, UE MAC层将允许使用竟争资源的上行逻辑信道 的上行数据在授权的竟争资源上传输, 并禁止不允许使用竟争资源的上行逻辑 信道的上行数据在授权的竟争资源上传输。
本发明还提供的一种基于竟争的上行数据传输装置包括:
处于 MAC层的获取模块, 用于获取配置信息, 其中配置信息用于指示各上 行逻辑信道的上行数据是否允许使用竟争资源;
处于 MAC层的控制模块, 用于在需要使用竟争资源时, 将允许使用竟争资 源的上行逻辑信道的上行数据在授权的竟争资源上传输, 并禁止不允许使用竟 争资源的上行逻辑信道的上行数据在授权的竟争资源上传输。。
本发明有益效果如下: 由于根据是否允许使用竟争资源分别处理, 对于能 通过缩短时延获得较大增益的上行数据, 提高了其使用竟争资源的效率和成功 率, 还避免了其他上行数据对竟争资源上碰撞概率的提升并保证传输成功率, 整体提高了上行数据传输的性能。 附图说明
图 1为现有技术上行数据触发状态转换方法流程图
图 2为现有技术在竟争的上行资源上传输上行数据的方法流程图; 图 3为本发明第一实施例方法流程图;
图 4为本发明第二实施例方法流程图;
图 5为本发明第三实施例方法流程图;
图 6为本发明第四实施例方法流程图;
图 7为本发明第五实施例方法流程图;
图 8为本发明第六实施例方法流程图;
图 9为本发明第七实施例方法流程图;
图 10为本发明实施例基于竟争的上行数据传输装置结构图。
具体实施方式
本发明实施例由网络侧或者 UE侧高层发送配置信息,该配置信息针对上行 逻辑信道,通知 UE MAC层各上行逻辑信道的上行数据是否允许使用竟争资源。
UE MAC根据此, 将允许使用竟争资源的上行逻辑信道的上行数据在授权的竟 争资源上传输, 并禁止不允许使用竟争资源的上行逻辑信道的上行数据在授权 的竟争资源上传输。
其中, 通知 UE MAC层上行逻辑信道的上行数据是否允许使用竟争资源所 采取的方法可以是:
网络侧在进行上行逻辑信道配置的时候,向 UE发送的配置信令中携带配置 信息; 或
UE RRC层在上行逻辑信道建立的时候,根据网络侧的配置信令确定对应的 配置信息, 然后以层间原语的形式向 UE MAC层发送配置信息; 或
UE RLC( Radio Link Protocol,无线链路控制协议)层和 /或 PDCP( Packet Data Convergence Protocol, 分组数据汇聚协议 )层向 UE MAC层发送携带配置信息 的指示信息。
上行数据是否允许使用竟争资源的配置原则为: 期望缩短时延并能够忍受 竟争资源传输特性的上行数据允许使用竟争资源。
比如 AM ( Acknowledged Mode , 应答模式) 数据允许使用, UM (Unacknowledged Mode, 无应答模式) 数据和 TM (Transparent Mode, 透明模式) 数据不允许使用;
TCP ( Transmission Control Protocol, 传输控制协议) 下载业务的上行逻辑 信道(承载 TCP反馈包) 中的 AM数据允许使用, 其它 AM数据不允许使用, UM数据和 TM数据也不允许使用;
需传输的 AM数据大小小于或等于某个门限值, 或者刚好能够在一个或若 干个授权的竟争资源 (即竟争 Grants ) 中承载的 AM数据才能使用竟争资源; 其它根据需要期望缩短时延, 能够忍受竟争资源的传输特性的上行数据允
许使用。
下面结合说明书附图对本发明实施例作进一步详细描述。
如图 3 所示, 本发明第一实施例基于竟争的上行数据传输方法包括下列步 骤:
步骤 101 : 网络侧在进行上行逻辑信道配置的时候, 向 UE发送配置信令, 针对上行逻辑信道 1 进行配置, 指示上行逻辑信道 1 的上行数据是否允许使用 竟争资源。
其中, "上行逻辑信道 1的上行数据是否允许使用竟争资源" 这一配置信息 可以通过配置信令直接携带, UE MAC层获取该配置信息。 也可以是 UE RRC 层在上行逻辑信道建立的时候, 向 UE MAC层以层间原语的形式发送, 以此指 示逻辑信道 1的上行数据是否允许使用竟争资源。
当然, 本实施例是以上行逻辑信道 1 为例进行的说明, 对于整个上行数据 传输过程而言, 网络侧在进行上行逻辑信道配置的时候, 会针对每一条上行逻 辑信道进行配置, 例如, 配置上行逻辑信道 1 为该上行逻辑信道的上行数据允 许或不允许使用竟争资源, 配置上行逻辑信道 2 为该上行逻辑信道的上行数据 允许或不允许使用竟争资源, 配置上行逻辑信道 3 为该上行逻辑信道的上行数 据允许或不允许使用竟争资源。
步骤 102:如果配置上行逻辑信道 1为该上行逻辑信道的上行数据允许使用 竟争资源, 当满足基本的竟争资源使用条件, 需要使用竟争资源时, UE MAC 层根据到达的上行数据所属的上行逻辑信道 1 ,被配置为该上行逻辑信道的上行 数据允许使用竟争资源, 获取可用的且距离当前时间最近的竟争 Grants。
确定是否满足基本的竟争资源使用条件的方式有很多, 比如由于上行数据 到达或者上行更高优先级数据到达触发了 BSR ( Buffer Status Report, 緩存状态 上报), 进一步由于没有上行资源, 触发了 SR, 可以认为此时满足基本的竟争 资源使用条件, 需要使用竟争资源。 在确定需要使用竟争资源后, 获取竟争 Grants , 触发使用竟争资源的传输。
步骤 103: UE MAC层在竟争 Grants上传输上行逻辑信道 1的上行数据。 本步骤还可以是, UE MAC层获得竟争 Grants后, 判断此时是否有不允许 使用竟争资源的上行 辑信道的上行数据需要发送, 例如有上行逻辑信道 2 的 上行数据 (假设上行逻辑信道 2 的上行数据不允许使用竟争资源) 需要在竟争 Grants上发送, 则放弃该竟争 Grants的使用; 如果没有 (假设上行逻辑信道 2 的上行数据允许使用竟争资源), 则在竟争 Grants上传输上行逻辑信道 1、 2、 3 的上行数据。 即假设全部的逻辑信道 1、 2、 3 都被分别配置为该上行逻辑信道 的上行数据允许使用竟争资源, 此时没有不允许使用竟争资源的上行逻辑信道 的上行数据需要传输, 因此授权的竟争资源上可以传输各上行逻辑信道的上行 数据。
其中在竟争 Grants 上传输上行数据的过程可以是: UE MAC 层按照竟争 Grants指示, 通过进行 HARQ实体和进程操作, 进行上行传输数据组织, 然后 针对可以在竟争资源上传输的上行数据和需要携带的 MAC 控制单元如 BSR ( Buffer Status Report,緩冲区状态报告)、 C-RNTK Cell-Radio Network Temporary Identifier,小区无线网络临时识别号)等,完成数据的复用和 PDU ( Protocol Data Unit, 协议数据单元 ) 的生成, 将生成的 MAC PDU在该竟争 Grants上发送。
由本实施例可以看出, 只要有不允许使用竟争资源的数据, 则该 UE就不允 许使用竟争资源,只有当满足基本的竟争资源使用条件时,此时获取竟争 Grants, 并在该竟争 Grants上传输允许使用竟争资源的数据。
如图 4 所示, 本发明第二实施例基于竟争的上行数据传输方法包括下列步 骤:
步骤 201: 网络侧在进行上行逻辑信道信道配置的时候, 向 UE发送配置信 令, 针对上行逻辑信道 1和 2进行配置, 指示上行逻辑信道 1和 2的上行数据 是否允许使用竟争资源。
当然, 也可以使用 UE RRC层通过层间交互告知 UE MAC层的方式。
步骤 202: 当满足基本的竟争资源使用条件, 需要使用竟争资源时, 由于逻
辑信道 1被配置成该上行逻辑信道的上行数据不允许使用竟争资源,则 UE不会 触发使用竟争资源传输的过程。
确定是否满足基本的竟争资源使用条件的方式有很多 , 比如与上个实施例 相同, 由于逻辑信道 1 的数据到达触发了 BSR, 进一步由于没有上行资源, 触 发了 SR, 即认为此时满足基本的竟争资源使用条件, 需要使用竟争资源, 在确 定需要使用竟争资源后, 由于逻辑信道 1 被配置成该上行逻辑信道的上行数据 不允许使用竟争资源, 不会获取竟争 Grants, 也就不触发使用竟争资源的传输。
步骤 203: 逻辑信道 2的上行数据到达, 此时不满足基本的竟争资源使用条 件, 不能触发使用竟争资源的传输。
其中, 由于緩存中有更高优先级的逻辑信道 1的数据, 不满足 BSR触发条 件, 也不会触发 SR, 因此此时不满足基本的竟争资源使用条件。 即使逻辑信道 2被配置成该上行逻辑信道的上行数据允许使用竟争资源, UE也不能触发使用 竟争资源的传输。
如图 5 所示, 本发明第三实施例基于竟争的上行数据传输方法包括下列步 骤:
步骤 301: 网络侧在进行上行逻辑信道信道配置的时候 , 向 UE发送配置信 令, 针对上行逻辑信道 1进行配置, 指示上行逻辑信道 1 的上行数据是否允许 使用竟争资源。
当然, 也可以使用 UE RRC层通过层间交互告知 UE MAC层的方式。
步骤 302: 在需要使用竟争资源时, UE MAC层直接获取授权的竟争资源。 这时 UE MAC层不区分逻辑信道 1的上行数据是否允许使用竟争资源, 即 使逻辑信道 1 被配置成该上行逻辑信道的上行数据不允许使用竟争资源, UE
MAC层仍然获取距离当前时间最近的可用竟争 Grants。
步骤 303: 当满足基本的竟争资源使用条件, 需要使用竟争资源时, 由于上 行逻辑信道 1 被配置成该上行逻辑信道的上行数据不允许使用竟争资源, 则禁 止上行逻辑信道 1 的上行数据在竟争 Grants上传输, 将作为控制信息的 MAC
控制单元在竟争 Grants上传输。
由于逻辑信道 1被配置成该上行逻辑信道的上行数据不允许使用竟争资源, 此时没有可在竟争资源上传输的上行数据, 则 MAC PDU中仅包含作为控制信 息的 MAC控制单元, 将生成的 MAC PDU在该竟争 Grants上发送。
如图 6 所示, 本发明第四实施例基于竟争的上行数据传输方法包括下列步 骤:
步骤 401 : 网络侧在进行上行逻辑信道配置的时候, 向 UE发送配置信令, 针对上行逻辑信道 1 进行配置, 指示上行逻辑信道 1 的上行数据是否允许使用 竟争资源。
当然, 也可以使用 UE RRC层通过层间交互告知 UE MAC层的方式。
步骤 402: 在需要使用竟争资源时, UE MAC层直接获取竟争 Grants。
这时 UE侧 MAC层不区分逻辑信道 1的上行数据是否允许使用竟争资源, 即使逻辑信道 1被配置成该上行逻辑信道的上行数据不允许使用竟争资源, UE 仍然获取距离当前时间最近的可用的竟争 Grants。
步骤 403: 获取竟争 Grants后, 再进行判断, 上行逻辑信道 1是否被配置成 该上行逻辑信道的上行数据允许使用竟争资源, 若是则在竟争 Grants上传输上 行逻辑信道 1的上行数据, 否则放弃竟争 Grants的使用。
本步骤中是获取竟争 Grants后, 上行逻辑信道 1的上行数据需要传输, 此 时再进行判断。 同样上行逻辑信道 2的上行数据需要传输, 上行逻辑信道 2被 配置成该上行逻辑信道的上行数据允许使用竟争资源, 在竟争 Grants上传输上 行逻辑信道 2的上行数据。
本步骤也可以是: 获取竟争 Grants后, 再判断逻辑信道 1是否被配置成该 上行逻辑信道的上行数据不允许使用竟争资源,若是则放弃竟争 Grants的使用, 否则在竟争 Grants上传输逻辑信道 1的上行数据。
在竟争 Grants上传输上行数据, 具体可如前一样的方式, 进行 HARQ实体 和进程操作,针对可以在竟争资源上传输的用户数据和需要携带的 MAC控制单
元如 BSR、 C-RNTI等, 完成数据的复用和 PDU的生成, 将生成的 MAC PDU 在该竟争 Grants上发送。
如图 7 所示, 本发明第五实施例基于竟争的上行数据传输方法包括下列步 骤:
步骤 501: 网络侧在进行上行逻辑信道信道配置的时候, 向 UE发送配置信 令, 针对全部上行逻辑信道进行配置, 指示所有上行逻辑信道的上行数据是否 允许使用竟争资源。
当然, 也可以使用 UE RRC层通过层间交互告知 UE MAC层的方式。 例如, 全部上行逻辑信道为上行逻辑信道 1、 上行逻辑信道 2和上行逻辑信 道 3 , 配置信息指示逻辑信道 1、 上行逻辑信道 2和上行逻辑信道 3的上行数据 是否全部允许使用竟争资源。
步骤 502: 根据 UE全部上行逻辑信道的上行数据允许使用竟争资源, 在需 要使用竟争资源时, UE MAC 层直接将当前上行逻辑信道的上行数据在竟争 Grants上传输。
本步骤中不再区分, 当前上行逻辑信道被配置为该上行逻辑信道的上行数 据允许使用竟争资源, 或不允许使用竟争资源。
当然, 若不是全部上行逻辑信道的上行数据允许使用竟争资源, 在需要使 用竟争资源时, UE MAC层不触发使用竟争资源的传输。
在竟争 Grants上传输上行数据, 具体可如前一样的方式, 进行 HARQ实体 和进程操作,针对可以在竟争资源上传输的用户数据和需要携带的 MAC控制单 元如 BSR、 C-RNTI等, 完成数据的复用和 PDU的生成, 将生成的 MAC PDU 在该竟争 Grants上发送。
本方案与前面的方案不同之处在于,本实施例是在配置时针对 UE的全部上 行逻辑信道, 当 UE全部上行逻辑信道的上行数据允许使用竟争资源时,根据该 配置信息, UE MAC层直接将上行数据在竟争 Grants上传输。
如图 8 所示, 本发明第六实施例基于竟争的上行数据传输方法包括下列步
骤:
步骤 601: 网络侧在进行上行逻辑信道信道配置的时候, 向 UE发送配置信 令, 针对上行逻辑信道 1进行配置, 指示上行逻辑信道 1 的上行数据是否允许 使用竟争资源, 并在配置信令中携带对上行数据大小的限制门限值。
步骤 602: 在需要使用竟争资源时, 若上行逻辑信道 1的上行数据允许使用 竟争资源且上行数据大小小于或等于预定的限制门限值, 或能够在最近的竟争 Grants上传输, 或能够在 2个 TTI中的竟争 Grants上传输, 则在竟争 Grants上 传输上行逻辑信道 1的上行数据。
其中, 若上行逻辑信道 1 的上行数据允许使用竟争资源, 上行数据大小大 于预定的限制门限值, 或不能在最近的竟争 Grants上传输, 或不能在 2个 TTI 中的竟争 Grants上传输, 则放弃该竟争 Grants的使用。
当然, 2个 TTI只是本实施例的优选方案, 可以根据实际的情况设定 TTI 的数量 N, 这个参数也可以是网络侧配置或者预先规定好的。 本步骤中上行数 据可以是 AM数据。
在竟争 Grants上传输上行数据, 具体可如前一样的方式, 进行 HARQ实体 和进程操作,针对可以在竟争资源上传输的用户数据和需要携带的 MAC控制单 元如 BSR、 C-RNTI等, 完成数据的复用和 PDU的生成, 将生成的 MAC PDU 在该竟争 Grants上发送。
如图 9 所示, 本发明第七实施例基于竟争的上行数据传输方法包括下列步 骤:
步骤 701 : UE RLC和 /或 PDCP向 UE MAC层发送的指示信息, 针对上行 逻辑信道 1指示该条上行逻辑信道的上行数据是否允许使用竟争资源。
其中, UE LC和 /或 PDCP在与 MAC层交互的数据 buffer信息中增加 lbit 指示, 用于指示上行逻辑信道 1 的上行数据是否允许使用竟争传输, 该信息的 获得可以来自于网络侧配置, 也可以根据一些筒单的预定义原则, 如 AM数据 允许, UM和 TM数据不允许等。
步骤 702: 在需要使用竟争资源时, 若上行逻辑信道 1的上行数据允许使用 竟争资源且上行数据大小小于或等于预定的限制门限值, 或能够在最近的竟争 Grants上传输, 或能够在 2个 TTI中的竟争 Grants上传输, 则竟争 Grants上传 输上行逻辑信道 1的上行数据。
其中, 若上行逻辑信道 1 的上行数据允许使用竟争资源, 且上行数据大小 大于预定的限制门限值, 或不能够在最近的竟争 Grants上传输, 或不能够在 2 个 TTI中的竟争 Grants上传输, 放弃该竟争 Grants的使用。
与实施例 6不同的是, 由于采用了 UE RLC和 /或 PDCP向 UE MAC层发送 的指示信息的方式, 上行逻辑信道 1中到达的数据大小可以由 PDCP或 RLC给 予 MAC层单独指示。 例如使用竟争 Grants进行上行数据传输时, 只需传输第 一个到达的 RLC SDU ( Service Data Unit, 服务数据单元), 则 PDCP或 RLC仅 指示第一个到达的 RLC SDU大小。
LC在对需要使用竟争 Grants传输的上行逻辑信道 1的上行数据进行组包 时, 不对 SDU进行分段操作或在竟争资源上承载的 SDU数据包数量小于 3。 同 样的, 3个 SDU只是本实施例的优选方案, 可以根据实际的情况设定 SDU的数 量为 M, 这个参数可以是网络侧配置或者预先规定, 其中在 RLC层的上行数据 为 SDU。
在竟争 Grants上传输上行数据, 具体可如前一样的方式, 进行 HARQ实体 和进程操作,针对可以在竟争资源上传输的用户数据和需要携带的 MAC控制单 元如 BSR、 C-RNTI等, 完成数据的复用和 PDU的生成, 将生成的 MAC PDU 在该竟争 Grants上发送。
基于同一发明构思, 本发明实施例中还提供了一种基于竟争的上行数据传 输装置, 由于该装置解决问题的原理与基于竟争的上行数据传输的方法相似, 因此该装置的实施可以参见方法的实施, 重复之处不再赘述。
如图 10所示, 本发明实施例基于竟争的上行数据传输装置包括:
处于 UE MAC层的获取模块 801, 用于获取配置信息, 配置信息用于指示
各上行逻辑信道的上行数据是否允许使用竟争资源;
处于 UE MAC层的控制模块 802, 用于在需要使用竟争资源时, 将允许使 用竟争资源的上行逻辑信道的上行数据在授权的竟争资源上传输, 并禁止不允 许使用竟争资源的上行逻辑信道的上行数据在授权的竟争资源上传输。
较佳的, 获取模块 801 获取网络侧在进行上行逻辑信道配置的时候发送的 配置信令中携带的配置信息, 或获取 UE RRC层在上行逻辑信道建立的时候, 根据网络侧的配置信令所确定的配置信息, 或接收用户无线链路控制协议和 /或 分组数据汇聚协议层发送的指示信息中携带的配置信息。
较佳的, 获取模块 801 获取的配置信息针对单个上行逻辑信道, 用于指示 该上行逻辑信道的上行数据是否允许使用竟争资源。
较佳的, 控制模块 802在需要使用竟争资源时, 若触发竟争资源使用的上 行数据所属的上行逻辑信道被配置为该上行逻辑信道的上行数据允许使用竟争 资源, 则获取授权的竟争资源, 并在授权的竟争资源上传输允许使用竟争资源 的上行逻辑信道的上行数据, 或在需要使用竟争资源时, 若触发竟争资源使用 的上行数据所属的上行逻辑信道被配置为该上行逻辑信道的上行数据允许使用 竟争资源, 则获取授权的竟争资源, 并当确定此时没有不允许使用竟争资源的 上行逻辑信道的上行数据需要传输时, 在授权的竟争资源上传输允许使用竟争 资源的上行逻辑信道的上行数据, 当确定此时有不允许使用竟争资源的上行逻 辑信道的上行数据需要传输时, 放弃授权的竟争资源的使用。
较佳的, 控制模块 802在需要使用竟争资源时, 若触发竟争资源使用的数 据所属的第一上行逻辑信道被配置为该上行逻辑信道的上行数据不允许使用竟 争资源, 则不触发使用竟争资源的传输, 若允许使用竟争资源的第二上行逻辑 信道的上行数据到达, 此时不满足使用竟争资源的条件, 不触发使用竟争资源 的传输。
较佳的, 控制模块 802在需要使用竟争资源时, 直接获取授权的竟争资源, 若待传输数据所属的上行逻辑信道被配置为该上行逻辑信道的上行数据不允许
使用竟争资源, 则禁止待传输数据在授权的竟争资源上传输, 将作为控制信息 的 MAC控制单元在授权的竟争资源上传输。
较佳的, 控制模块 802在需要使用竟争资源时, 直接获取授权的竟争资源, 之后判断是否有允许使用竟争资源的上行逻辑信道的上行数据需要传输, 若有 则在授权的竟争资源上传输, 否则放弃授权的竟争资源的使用, 或在需要使用 竟争资源时, 直接获取授权的竟争资源, 之后判断是否有不允许使用竟争资源 的上行逻辑信道的上行数据需要传输, 若没有则在授权的竟争资源上传输允许 使用竟争资源的上行逻辑信道的上行数据, 若有则放弃授权的竟争资源的使用。
较佳的, 获取模块 801, 获取的配置信息针对全部上行逻辑信道, 用于指示 全部上行逻辑信道的上行数据是否允许使用竟争资源;
相应的, 控制模块 802根据全部上行逻辑信道的上行数据允许使用竟争资 源, 在需要使用竟争资源时, 直接将上行逻辑信道的上行数据在授权的竟争资 源上传输, 根据不是全部上行逻辑信道的上行数据允许使用竟争资源, 在需要 使用竟争资源时, 不触发使用竟争资源的传输。
较佳的, 控制模块 802在无线链路控制协议层在对需要使用授权的竟争资 源传输的上行数据进行组包时, 不对无线链路控制协议层的上行数据 SDU进行 分段操作或在竟争资源上承载的 SDU数据包数量小于阈值。
本领域内的技术人员应明白, 本发明的实施例可提供为方法、 系统、 或计算 机程序产品。 因此, 本发明可釆用完全硬件实施例、 完全软件实施例、 或结合 软件和硬件方面的实施例的形式。 而且, 本发明可采用在一个或多个其中包含 有计算机可用程序代码的计算机可用存储介质 (包括但不限于磁盘存储器、 CD-ROM, 光学存储器等) 上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、 设备(系统)、 和计算机程序产品 的流程图和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图和 / 或方框图中的每一流程和 /或方框、 以及流程图和 /或方框图中的流程和 /或 方框的结合。 可提供这些计算机程序指令到通用计算机、 专用计算机、 嵌入式
处理机或其他可编程数据处理设备的处理器以产生一个机器 , 使得通过计算机 或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流 程或多个流程和 /或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备 以特定方式工作的计算机可读存储器中, 使得存储在该计算机可读存储器中的 指令产生包括指令装置的制造品, 该指令装置实现在流程图一个流程或多个流 程和 /或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得 在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理, 从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程 或多个流程和 /或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例,但本领域内的技术人员一旦得知了基本 创造性概念, 则可对这些实施例作出另外的变更和修改。 所以, 所附权利要求 意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
由于根据是否允许使用竟争资源分别处理,对于能通过缩短时延获得较大增 益的上行数据, 提高了其使用竟争资源的效率和成功率, 还避免了其他上行数 据对竟争资源上碰撞概率的提升并保证传输成功率, 整体提高了上行数据传输 的性能。
显然,本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明 的精神和范围。 这样, 倘若本发明的这些修改和变型属于本发明权利要求及其 等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。
Claims
1、 一种基于竟争的上行数据传输方法, 其特征在于, 包括如下步骤: 用户设备媒体接入控制 UE MAC层获取配置信息, 其中配置信息用于指示 各上行逻辑信道的上行数据是否允许使用竟争资源;
在需要使用竟争资源时, UE MAC层将允许使用竟争资源的上行逻辑信道 的上行数据在授权的竟争资源上传输, 并禁止不允许使用竟争资源的上行逻辑 信道的上行数据在授权的竟争资源上传输。
2、如权利要求 1所述的方法, 其特征在于, UE MAC层获取配置信息包括: 获取网络侧在进行上行逻辑信道配置时发送的配置信令中携带的配置信 息; 或
获取用户设备无线资源控制 UE RRC层在上行逻辑信道建立的时候, 根据 网络侧的配置信令所确定的配置信息; 或
获取用户无线链路控制协议和 /或分组数据汇聚协议层发送的指示信息中携 带的配置信息。
3、 如权利要求 1所述的方法, 其特征在于, UE MAC层获取配的配置信息 是针对单个上行逻辑信道, 用于指示该上行逻辑信道的上行数据是否允许使用 竟争资源。
4、 如权利要求 3所述的方法, 其特征在于, 在需要使用竟争资源时, UE MAC层将上行数据在授权的竟争资源上传输步骤具体包括:
在需要使用竟争资源时, 若配置触发竟争资源使用的上行数据所属的上行 逻辑信道的上行数据允许使用竟争资源, UE MAC层获取授权的竟争资源, 并 在授权的竟争资源上传输允许使用竟争资源的上行逻辑信道的上行数据; 或 在需要使用竟争资源时, 若配置触发竟争资源使用的上行数据所属的上行 逻辑信道的上行数据允许使用竟争资源, UE MAC层获取授权的竟争资源, 并 当确定此时没有不允许使用竟争资源的上行逻辑信道的上行数据需要传输时, 在授权的竟争资源上传输允许使用竟争资源的上行逻辑信道的上行数据, 当确 定此时有不允许使用竟争资源的上行逻辑信道的上行数据需要传输时, 放弃授 权的竟争资源的使用。
5、 如权利要求 3所述的方法, 其特征在于, 在需要使用竟争资源时, UE MAC层禁止不允许使用竟争资源的上行数据传输的步骤具体包括:
在需要使用竟争资源时, 若配置触发竟争资源使用的数据所属的第一上行 逻辑信道的上行数据不允许使用竟争资源, 不触发使用竟争资源的传输;
该方法还包括:
若允许使用竟争资源的第二上行逻辑信道的上行数据到达, 此时不满足使 用竟争资源的条件, 不触发使用竟争资源的传输。
6、 如权利要求 3所述的方法, 其特征在于, 在需要使用竟争资源时, UE MAC层禁止不允许使用竟争资源的上行数据传输的步骤具体包括:
在需要使用竟争资源时, UE MAC层直接获取授权的竟争资源, 若配置待 传输数据所属的上行逻辑信道的上行数据不允许使用竟争资源, 禁止待传输数 据在授权的竟争资源上传输,将作为控制信息的 MAC控制单元在授权的竟争资 源上传输。
7、 如权利要求 3所述的方法, 其特征在于, 在需要使用竟争资源时, UE MAC层将上行数据在授权的竟争资源上传输以及禁止不允许使用竟争资源的上 行数据传输的步驟具体包括:
在需要使用竟争资源时, UE MAC层获取授权的竟争资源, 判断是否有允 许使用竟争资源的上行逻辑信道的上行数据需要传输, 若有则在授权的竟争资 源上传输, 否则放弃授权的竟争资源的使用; 或
在需要使用竟争资源时, UE MAC层获取授权的竟争资源, 判断是否有不 允许使用竟争资源的上行逻辑信道的上行数据需要传输, 若没有则在授权的竟 争资源上传输允许使用竟争资源的上行逻辑信道的上行数据, 若有则放弃授权 的竟争资源的使用。
8、 如权利要求 1所述的方法, 其特征在于, UE MAC层获取的配置信息是 针对全部上行逻辑信道, 用于指示全部上行逻辑信道的上行数据是否允许使用 竟争资源。
9、 如权利要求 8所述的方法, 其特征在于, 在需要使用竟争资源时, UE MAC层将上行数据在授权的竟争资源上传输以及禁止不允许使用竟争资源的上 行数据传输的步骤具体包括:
在需要使用竟争资源时, 若配置信息指示全部上行逻辑信道的上行数据允 许使用竟争资源, UE MAC层将上行逻辑信道的上行数据在授权的竟争资源上 传输, 若配置信息指示不是全部上行逻辑信道的上行数据允许使用竟争资源, UE MAC层不触发使用竟争资源的传输。
10、 如权利要求 1所述的方法, 其特征在于, 该方法还包括:
UE MAC层将允许使用竟争资源的上行逻辑信道的上行数据在授权的竟争 资源上传输时, 若无线链路控制协议层对需要使用授权的竟争资源传输的上行 数据进行组包, 不对无线链路控制协议层的上行数据业务数据单元 SDU进行分 段操作或在竟争资源上承载的 SDU数据包数量小于阐值。
11、 如权利要求 1 ~ 10任一所述的方法, 其特征在于, 允许使用竟争资源 的上行逻辑信道的上行数据, 为期望缩短时延并能够忍受竟争资源传输特性的 上行数据, 其它的上行数据被配置为不允许使用竟争资源。
12、 如权利要求 11所述的方法, 其特征在于, 应答模式数据允许使用竟争 资源, 无应答模式数据和透明模式数据不允许使用竟争资源;
传输控制协议 TCP下载业务的上行伴随信道中的应答模式数据允许使用竟 争资源, 除 TCP下载业务的上行伴随信道中的应答模式数据之外的应答模式数 据、 无应答模式数据和透明模式数据不允许使用竟争资源;
数据大小不大于预定的门限值的应答模式数据, 或能够在预定数量授权的 竟争资源中承载的应答模式数据允许使用竟争资源 , 数据大小大于预定的门限 值的应答模式数据, 或不能够在预定数量授权的竟争资源中承载的应答模式数 据不允许使用竟争资源。
13、 一种基于竟争的上行数据传输装置, 其特征在于, 包括: 处于 MAC层的获取模块, 用于获取配置信息, 其中配置信息用于指示各上 行逻辑信道的上行数据是否允许使用竟争资源;
处于 MAC层的控制模块, 用于在需要使用竟争资源时, 将允许使用竟争资 源的上行逻辑信道的上行数据在授权的竟争资源上传输, 并禁止不允许使用竟 争资源的上行逻辑信道的上行数据在授权的竟争资源上传输。
14、 如权利要求 13所述的装置, 其特征在于, 所述获取模块具体用于: 获取网络侧在进行上行逻辑信道配置时发送的配置信令中携带的配置信 息; 或获取 RRC层在上行逻辑信道建立的时候, 根据网絡侧的配置信令所确定 的配置信息; 或获取用户无线链路控制协议和 /或分组数据汇聚协议层发送的指 示信息中携带的配置信息。
15、 如权利要求 13所述的装置, 其特征在于, 所述获取模块获取的配置信 息是针对单个上行逻辑信道, 用于指示该上行逻辑信道的上行数据是否允许使 用竟争资源。
16、 如权利要求 15所述的装置, 其特征在于, 所述控制模块具体用于: 在需要使用竟争资源时, 若配置触发竟争资源使用的上行数据所属的上行 逻辑信道的上行数据允许使用竟争资源, 获取授权的竟争资源, 并在授权的竟 争资源上传输允许使用竟争资源的上行逻辑信道的上行数据; 或在需要使用竟 争资源时, 若配置触发竟争资源使用的上行数据所属的上行逻辑信道的上行数 据允许使用竟争资源, 获取授权的竟争资源, 并当确定此时没有不允许使用竟 争资源的上行逻辑信道的上行数据需要传输时, 在授权的竟争资源上传输允许 使用竟争资源的上行逻辑信道的上行数据, 当确定此时有不允许使用竟争资源 的上行逻辑信道的上行数据需要传输时, 放弃授权的竟争资源的使用。
17、 如权利要求 15所述的装置, 其特征在于, 所述控制模块具体用于: 在 需要使用竟争资源时, 若配置触发竟争资源使用的数据所属的第一上行逻辑信 道的上行数据不允许使用竟争资源, 不触发使用竟争资源的传输; 若允许使用 竟争资源的第二上行逻辑信道的上行数据到达, 此时不满足使用竟争资源的条 件, 不触发使用竟争资源的传输。
18、 如权利要求 15所述的装置, 其特征在于, 所述控制模块具体用于: 在需要使用竟争资源时, 直接获取授权的竟争资源, 若配置待传输数据所 属的上行逻辑信道的上行数据不允许使用竟争资源, 禁止待传输数据在授权的 竟争资源上传输, 将作为控制信息的 MAC控制单元在授权的竟争资源上传输。
19、 如权利要求 15所述的装置, 其特征在于, 所述控制模块具体用于: 在需要使用竟争资源时, 获取授权的竟争资源, 判断是否有允许使用竟争 资源的上行逻辑信道的上行数据需要传输, 若有则在授权的竟争资源上传输, 否则放弃授权的竟争资源的使用; 或在需要使用竟争资源时, 获取授权的竟争 资源, 判断是否有不允许使用竟争资源的上行逻辑信道的上行数据需要传输, 若没有则在授权的竟争资源上传输允许使用竟争资源的上行逻辑信道的上行数 据, 若有则放弃授权的竟争资源的使用。
20、 如权利要求 13所述的装置, 其特征在于, 所述获取模块获取的配置信 息是针对全部上行逻辑信道, 用于指示全部上行逻辑信道的上行数据是否允许 使用竟争资源。
21、 如权利要求 20所述的装置, 其特征在于, 所述控制模块具体用于: 在需要使用竟争资源时, 若配置信息指示全部上行逻辑信道的上行数据允 许使用竟争资源, 将上行逻辑信道的上行数据在授权的竟争资源上传输, 若配 置信息指示不是全部上行逻辑信道的上行数据允许使用竟争资源, 不触发使用 竟争资源的传输。
22、 如权利要求 13所述的装置, 其特征在于, 所述控制模块还用于: 在无线链路控制协议层对需要使用授权的竟争资源传输的上行数据进行组 包时, 不对无线链路控制协议层的上行数据 SDU进行分段操作或在竟争资源上 承载的 SDU数据包数量小于阈值。
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