WO2010083656A1 - 一种载波控制方法、装置及*** - Google Patents

一种载波控制方法、装置及*** Download PDF

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Publication number
WO2010083656A1
WO2010083656A1 PCT/CN2009/070304 CN2009070304W WO2010083656A1 WO 2010083656 A1 WO2010083656 A1 WO 2010083656A1 CN 2009070304 W CN2009070304 W CN 2009070304W WO 2010083656 A1 WO2010083656 A1 WO 2010083656A1
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WIPO (PCT)
Prior art keywords
carrier
uplink
information
data transmission
uplink data
Prior art date
Application number
PCT/CN2009/070304
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English (en)
French (fr)
Inventor
马洁
贺传峰
杨波
胡振兴
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2009/070304 priority Critical patent/WO2010083656A1/zh
Publication of WO2010083656A1 publication Critical patent/WO2010083656A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/52Allocation or scheduling criteria for wireless resources based on load

Definitions

  • the present invention relates to mobile communication technologies, and in particular, to a carrier control technology.
  • the Universal Mobile Telecommunications System is a third-generation mobile communication system using Wideband Code Division Multiple Access (WCDMA) technology.
  • WCDMA Wideband Code Division Multiple Access
  • the UMTS system is also referred to as a WCDMA communication system.
  • multi-carrier WCDMA communication technology has been proposed based on the existing single-carrier WCDMA communication technology, including dual-carrier WCDMA communication technology.
  • the terminal UE, User Equipment
  • the network side specifies one of the carriers as the primary carrier, and the other carriers are the secondary carriers.
  • High Speed Downlink Packages Access is an important evolution of WCDMA.
  • the multi-carrier communication mode is supported between the network side and the UE only when the UE is in the CELL-DCH state; when the UE transits to other states, such as CELL FACH state, or CELL_PCH, or UTRA-PCH
  • the data transmission between the network side and the UE only supports the single carrier mode, that is, the data transmission between the network side and the UE is performed only through the primary carrier.
  • the network side allocates uplink common resources on the primary carrier to the UE, and uses the UE to perform uplink data transmission.
  • the uplink common resources on each carrier are limited to only 32 groups. When the number of UEs using the carrier is large, the uplink common resources on the carrier will be insufficient.
  • the UE uses only the uplink common resource on the primary carrier to perform uplink data transmission, when the number of UEs using the primary carrier is large, the uplink common resources on the primary carrier are insufficient, thereby affecting the use of the primary carrier. Transmission of UE uplink data of the primary carrier.
  • the technical problem to be solved by the present invention is to provide a carrier control method, apparatus, and system, to avoid the problem of insufficient uplink common resources caused by single-carrier communication between the network side and the UE.
  • the embodiment of the invention provides a carrier control method, including: Determining, according to an uplink load of each carrier in the multi-carrier used by the terminal UE, a carrier used by the UE for uplink data transmission;
  • the embodiment of the present invention further provides a carrier control apparatus, including: a carrier determining module, and a data sending module;
  • a carrier determining module configured to determine, according to an uplink load of each carrier in the multi-carrier used by the UE, a carrier used by the UE for uplink data transmission; and a data sending module, configured to use, by using the UE, the uplink data transmission determined by the carrier determining module
  • the carrier information is transmitted to the UE on a predetermined carrier.
  • the embodiment of the present invention further provides a carrier control system, including: a network side device; wherein, the network side device is configured to determine, according to an uplink load of each carrier in the multi-carrier used by the UE, a carrier used by the UE for uplink data transmission And determining the determined information of the carrier used by the UE uplink data transmission to the UE on a preset carrier.
  • a carrier control system including: a network side device; wherein, the network side device is configured to determine, according to an uplink load of each carrier in the multi-carrier used by the UE, a carrier used by the UE for uplink data transmission And determining the determined information of the carrier used by the UE uplink data transmission to the UE on a preset carrier.
  • the UE when performing multi-carrier communication, determines the carrier used for the uplink data transmission of the UE according to the uplink load of each carrier in the multi-carrier used by the UE, and sends the carrier information to the preset carrier.
  • the UE is configured to enable the network side to support multi-carrier communication with the UE; and, according to the uplink load of each carrier in the multi-carrier used by the UE, determine a carrier used by the UE for uplink data transmission, thereby avoiding using a certain one. Too many UEs on the carrier result in insufficient uplink common resources on the carrier, and balance the uplink load of each carrier.
  • FIG. 1 is a schematic flow chart of a carrier control method according to an embodiment of the present invention.
  • FIG. 2 is a schematic flow chart of another carrier control method according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a carrier control method according to a third embodiment of the present invention.
  • 3a is a schematic structural diagram of a high-speed shared control channel (HS-SCCH) order signaling structure of the prior art
  • FIG. 3b is a schematic structural diagram of an HS-SCCH order signaling according to an embodiment of the present invention.
  • FIG. 3c is a schematic structural diagram of another HS-SCCH order signaling according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of another HS-SCCH order signaling according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a carrier control apparatus according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of another carrier control apparatus according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a carrier control apparatus according to a third embodiment of the present invention.
  • FIG. 1 is a schematic flowchart of a carrier control method according to an embodiment of the present invention. As shown in FIG. 1 , the method includes: Step 101: A network side determines, according to an uplink load of each carrier in a multi-carrier used by a UE, that the UE performs an uplink data transmission. Carrier used.
  • the uplink data may include: uplink control signaling and general uplink data.
  • the carrier used for determining the uplink data transmission may be: the network side determines the uplink load of each carrier used by the UE, and selects the carrier with the lowest uplink load as the carrier used for the uplink data transmission of the UE.
  • the carrier with the smallest uplink load is used as the carrier used for uplink data transmission, so that the uplink load on multiple carriers used by the UE is balanced as much as possible.
  • Step 102 The network side sends the carrier information used by the UE uplink data transmission to the UE on a preset carrier.
  • the pre-setting may be: determining, by the network side, a carrier used to send the information, and notifying the UE before performing the step after the UE accesses the network.
  • the preset carrier can be updated in real time by the network side.
  • the preset carrier is one of a plurality of carriers used by the UE, and specifically, which carrier is not limited herein, for example, may be a primary carrier or a secondary carrier, and is preset, and the network side And the UE may transmit corresponding information on the preset carrier.
  • how to specifically send the carrier information to the UE may refer to the method described in step 204.
  • the method for transmitting the carrier information used by the uplink data transmission of the UE and the method for transmitting the uplink common resource information to the UE is different only in the following steps: in the step 204, the carrier information and the uplink common resource information are simultaneously sent, and only the carrier needs to be sent in this step. information.
  • the UE receives the carrier information, and performs feedback data transmission on the carrier.
  • the UE when performing multi-carrier communication, the UE determines a carrier used for uplink data transmission of the UE according to an uplink load of each carrier in the multi-carrier used by the UE, and sets the carrier information in advance.
  • the fixed carrier is sent to the UE, so that the network side can support multi-carrier communication with the UE; and, according to the uplink load of each carrier in the multi-carrier used by the UE, the carrier used for uplink data transmission of the UE is determined, Therefore, the number of UEs using a certain carrier is avoided, resulting in insufficient uplink common resources on the carrier, and balancing the uplink load of each carrier.
  • FIG. 2 is a schematic flowchart of another carrier control method according to an embodiment of the present invention. As shown in FIG. 2, the method includes:
  • Step 201 The network side determines that the UE currently uses a single carrier or multiple carriers for communication. If multiple carriers are used for communication, step 202 is performed; otherwise, the carrier currently used by the UE is used as the primary carrier of the UE, and at least 1 is configured for the UE.
  • the secondary carrier sends the information of the secondary carrier to the UE to notify the UE to configure the secondary carrier. Then, step 202 is performed.
  • the network side generally stores the information of the carrier used by each UE. Therefore, when performing this step, the network side can directly query the information of the carrier used by the UE to perform the determination.
  • the configuration of the secondary carrier for the UE on the network side may be: determining the uplink load amount, or the downlink load amount, or the total uplink and downlink load amount of the carrier other than the UE primary carrier used by the network side, and correspondingly loading the uplink load
  • One or more carriers with the smallest amount, or the smallest downlink load, or the smallest total uplink and downlink load, are used as secondary carriers of the UE.
  • the number of the configured secondary carriers can be adjusted according to the actual application environment in a specific implementation, which is not limited herein.
  • Selecting one or several carriers with the smallest total uplink and downlink load as the secondary carrier of the UE functions to: further balance the load on the carrier used by the network side.
  • the network may carry the secondary carrier information in a broadcast message or a radio resource control (RRC) signaling of the primary carrier of the UE.
  • RRC radio resource control
  • the secondary carrier information may be carried in an RRC connection setup message to notify the UE.
  • the UE will be configured according to the received secondary carrier information, thereby implementing multi-carrier communication with the network side.
  • Step 201 is optional.
  • Step 202 The network side determines, according to the uplink load of each carrier in the multi-carrier used by the UE, the carrier used by the UE for uplink data transmission. For the processing of this step, refer to step 101, and details are not described herein again.
  • Step 203 The network side allocates uplink common resources on the carrier used by the UE uplink data transmission to the UE.
  • the uplink common resource is used by the UE to perform uplink data transmission.
  • Step 204 The network side sends the carrier information and the uplink common resource information used by the UE uplink data transmission to the UE through a preset carrier.
  • step 102 For the preset in this step, reference may be made to the related description in step 102, and details are not described herein again.
  • the network side when the network side sends the carrier information and the uplink common resource information, it may be completed by sending control signaling on the preset carrier.
  • the method may be: passing the HS-SCCH order signaling.
  • the information is carried in the above-mentioned information to complete the transmission, or the signaling completion of the transmission of the foregoing information is separately defined, and the like.
  • the network side can transmit the carrier information and the uplink common resource information to the UE.
  • the network side determines that a certain secondary carrier needs to be activated or deactivated to use HS-SCCH order signaling.
  • the cell format of HS-SCCH order signaling is shown in Figure 2a.
  • the cell format on the HS-SCCH includes fields such as CCS, MOD, TBS, HARQ Process ID, RV, and NDI.
  • the HS-SCCH transmits the HS-SCCH order signaling the contents of the CCS, MOD, and TBS fields are sequentially set to "1110000" "1" "111101", where the content in the TBS field is used for the HS-SCCH order letter.
  • the content of the CCS and MOD fields can be regarded as unoccupied; the content corresponding to the HARQ Process ID field is used to indicate the type of the HS-SCCH order signaling, including 000, 001 In this case, the first 2 bits of the HARQ Process ID are not occupied; the content corresponding to the RV field is used to indicate the specific content of the HS-SCCH order signaling, and the 3 bits are all occupied; the lbit of the NDI field is also unoccupied.
  • the uplink common resource information may be performed by using the CCS field, the MOD field, the NDI field, and the first 2 bits of the RV field in the HS-SCCH order signaling based on compatibility considerations, and Transmission of carrier information used by the UE for uplink data transmission.
  • the uplink common resource information may occupy 5 bits; and the number of bits occupied by the carrier information used by the UE for uplink data transmission may be specifically set according to the number of carriers used by the UE.
  • several cell formats of HS-SCCH order signaling suitable for transmitting the carrier used in the uplink data transmission of the UE and the uplink common resource information in this step are given:
  • the last 4 bits of the CCS field and the lbit of the MOD field are selected for transmission of uplink common resource information, that is, the bit corresponding to index1 in FIG. 3b; and the UE is uplinked by using other unoccupied bits.
  • Carrier information used for data transmission For example, when the number of carriers used by the UE is not greater than 4, the first 2 bits in the HARQ Process ID field are used for transmission of carrier information used by the UE for uplink data transmission (not shown), when the UE uses dual carriers for communication.
  • the carrier information can be transmitted using the first 2 bits, for example, it can be set “00" indicates the primary carrier, “01” indicates the secondary carrier 1, and "10" indicates the secondary carrier 2.
  • the uplink common resource information is transmitted by using the first 5 bits of the CCS field, that is, the bit corresponding to index1 in FIG. 3c; and the carrier information used for uplink data transmission of the UE is transmitted by using other unoccupied bits.
  • the transmission of carrier information used for UE uplink data transmission (not shown) is performed using lbit or 2 bits in the first 2 bits of the HARQ Process ID field.
  • the first 5 bits of the 7 bits of the CCS field are used for uplink common resource information transmission; the latter 2 bits (bits corresponding to index1 in FIG. 3d) perform uplink data of the UE. Transmission of carrier information used for transmission.
  • the foregoing provides a specific implementation method for transmitting the carrier information and the uplink common resource information based on compatibility considerations.
  • the present invention is not limited to the foregoing method for transmitting the carrier information and the uplink common resource information, for example,
  • the format of the HS-SCCH signaling may be completely scrambled, and the information indicated by each bit in the HS-SCCH signaling may be redefined; or even the HS-SCCH order signaling may be defined on the HS-SCCH. Transmitting the carrier information and signaling of uplink common resource information, and the like.
  • the network side when determining that the UE uses single-carrier communication, uses the carrier currently used by the UE as a primary carrier, and configures a secondary carrier for the UE, thereby ensuring The UE is in a multi-carrier communication state, which further avoids the excessive number of UEs using a certain carrier, resulting in insufficient uplink common resources on the carrier, and balancing the uplink load of each carrier.
  • Step 301 The network side determines that the UE currently uses single carrier or multiple carriers for communication, and if multiple carriers are used for communication, perform Step 202; Otherwise, the carrier currently used by the UE is used as the primary carrier of the UE, and at least one secondary carrier is configured for the UE, and the information of the secondary carrier is sent to the UE to notify the UE to configure the secondary carrier. 202.
  • step 201 For the processing of this step, refer to step 201, and details are not described herein again.
  • step 301 is optional.
  • Step 302 The network side determines, according to the uplink load of each carrier in the multi-carrier used by the UE, the carrier used by the UE to perform uplink data transmission.
  • step 202 For the processing of this step, refer to step 202, and details are not described herein again.
  • Step 303 The network side uses the carrier information used by the UE for the uplink data transmission to be sent to the UE on a preset carrier.
  • step 102 For the processing of this step, refer to step 102, and details are not described herein again.
  • Step 304 The UE receives the carrier information, and sends request signaling to the network side on the primary carrier by using a random access channel (RACH, Random Access Channel).
  • RACH Random Access Channel
  • the request signaling is used by: the UE requests, from the network side, an uplink common resource on a carrier used by the UE for uplink data transmission.
  • Step 305 The network side receives the request signaling, allocates an uplink common resource on the carrier used by the UE uplink data transmission, and sends the information of the resource to the UE on a preset carrier.
  • the network side when the network side sends the resource information to the UE, it may also be completed by setting control signaling on the carrier in advance, for example, carrying the resource information in the HS-SCCH order signaling, or defining a new control. Signaling, etc.
  • the carrier information and the uplink common resource information may be carried in the HS-SCCH order signaling according to the embodiment of the present invention as shown in step 204. Method, no more details here.
  • the embodiment of the present invention shown in FIG. 1 to FIG. 3 can be executed when the UE is in a non-CELL-DCH state. For example, an execution period can be set. When the cycle time comes, the execution of the present embodiment shown in FIG. 1 to FIG. 3 is triggered.
  • the carrier control method and the like in the embodiments of the present invention are not described herein again.
  • the network side when determining that the UE uses single-carrier communication, uses the carrier currently used by the UE as a primary carrier, and configures a secondary carrier for the UE, thereby ensuring that the UE is in a multi-carrier communication state, further avoiding If there are too many UEs using a certain carrier, the problem of insufficient uplink common resources on the carrier is balanced, and the uplink load of each carrier is balanced.
  • the network side allocates the uplink common resource on the carrier to the UE according to the request of the UE, so that the resource allocated by the network side for the UE is more reasonable, and the network is avoided. Waste of resources.
  • FIG. 4 is a schematic structural diagram of a carrier control apparatus according to an embodiment of the present invention, which is disposed on a network side. As shown in FIG. 4, the method includes: a carrier determining module 410, a data sending module 420, where
  • the carrier determining module 410 is configured to determine, according to an uplink load of each carrier in the multi-carrier used by the UE, a carrier used by the UE for uplink data transmission.
  • the data sending module 420 is configured to send the carrier information used by the UE uplink data transmission determined by the carrier determining module 410 to the UE on a preset carrier.
  • the carrier determining module 410 determines, according to the uplink load of each carrier in the multi-carrier used by the UE, the carrier used by the UE for uplink data transmission, and determines the carrier of the carrier.
  • the information is sent to the UE, which avoids the problem of insufficient uplink common resources caused by each UE using single-carrier communication, and balances the uplink load of each carrier.
  • FIG. 5 is a schematic structural diagram of a carrier control apparatus according to a second embodiment of the present invention, which is disposed on a network side. As shown in FIG. 5, the method includes: a carrier determining module 510, a data sending module 520, a secondary carrier configuration module 530, and a resource allocating module 540;
  • the secondary carrier configuration module 530 is configured to determine that the UE uses a single carrier or multiple carriers for communication, and when the UE uses a single carrier for communication, the single carrier used by the UE is used as a primary carrier, and at least one auxiliary is configured for the UE. Carrier.
  • the carrier determining module 510 is configured to determine, by the secondary carrier configuration module 530, when the UE uses the multi-carrier communication, to determine the carrier used by the UE for uplink data transmission according to the uplink load of each carrier in the multi-carrier used by the UE.
  • the data sending module 530 is configured to: use the carrier information used by the UE to determine the uplink data transmission determined by the carrier determining module 510, and the uplink common resource information allocated by the resource allocation module 530 to the UE.
  • the first set carrier is sent to the UE; and the secondary carrier information configured by the secondary carrier configuration module 530 for the UE is sent to the UE on the primary carrier of the UE.
  • the resource allocation module 540 is configured to allocate, according to the carrier used by the UE uplink data transmission determined by the carrier determining module 510, the uplink common resource required for uplink data transmission on the carrier.
  • the secondary carrier configuration module 530 when determining that the UE uses a single carrier for communication, uses the carrier currently used by the UE as a primary carrier, and configures a secondary carrier for the UE, thereby ensuring that the UE is in multi-carrier communication.
  • the state further avoids the problem that the number of UEs using a certain carrier is too large, resulting in insufficient uplink common resources on the carrier, and balancing the uplink load of each carrier.
  • FIG. 6 is a schematic structural diagram of another carrier control apparatus according to an embodiment of the present invention.
  • the apparatus includes: a carrier determining module 610, a data sending module 620, a secondary carrier configuration module 630, a resource allocation module 640, and data receiving. Module 650; wherein
  • the secondary carrier configuration module 630 is configured to determine that the UE uses a single carrier or multiple carriers for communication, and when the UE uses a single carrier for communication, the single carrier used by the UE is used as a primary carrier, and at least one auxiliary is configured for the UE. Carrier.
  • the carrier determining module 610 is configured to determine, by the secondary carrier configuration module 630, when the UE uses the multi-carrier communication, to determine the carrier used by the UE for uplink data transmission according to the uplink load of each carrier in the multi-carrier used by the UE.
  • the resource allocation module 640 is configured to allocate an uplink common resource on the carrier to the UE according to the request signaling received by the data receiving module 650.
  • the data sending module 620 is configured to send the carrier information used by the UE uplink data transmission determined by the carrier determining module 610 and the uplink common resource information allocated by the resource allocation module 640 to the UE to the UE on a preset carrier;
  • the secondary carrier information which is also used to configure the secondary carrier configuration module 630 for the UE, is sent to the UE on the primary carrier of the UE.
  • the data receiving module 650 is configured to receive, by using the RACH, the request signaling sent by the UE by using the primary carrier, where the request signaling is used to apply, to the network side, the uplink public resource on the carrier used by the uplink data transmission of the UE.
  • the resource allocation module 640 allocates the uplink common resource on the carrier to the UE according to the request of the UE, after the data receiving module 650 receives the request signaling of the UE, so that the network The resources allocated by the side for the UE are more reasonable, avoiding waste of resources.
  • a carrier control system includes: a network side device;
  • a network side device configured to determine, according to an uplink load of each carrier in the multi-carrier used by the UE, a carrier used by the UE for uplink data transmission, and determine, in a predetermined, carrier information of the UE uplink data transmission
  • the fixed carrier is sent to the UE.
  • the UE determines the carrier used for uplink data transmission of the UE according to the uplink load of each carrier in the multi-carrier used by the UE, and the carrier information is in advance.
  • the set carrier is sent to the UE, so that the network side can support multi-carrier communication with the UE.
  • the network side device determines the uplink data transmission station of the UE according to the uplink load of each carrier in the multi-carrier used by the UE.
  • the carrier used avoids the problem of excessive UEs using a certain carrier, resulting in insufficient uplink common resources on the carrier, and balancing the uplink load of each carrier.
  • the storage medium may be, for example, a ROM/RAM, a magnetic disk, an optical disk, or the like.

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Description

一种载波控制方法、 装置及***
技术领域
本发明涉及移动通信技术, 尤其涉及一种载波的控制技术。
背景技术
通用移动通信*** ( UMTS , Universal Mobile Telecommunications System ) 是釆用宽带码分多址接入( WCDMA, Wideband Code Division Multiple Access ) 技术的第三代移动通信***。通常,也将 UMTS***称为 WCDMA通信***。
为了满足日益增长的无线业务需要, 已在现有单载波 WCDMA通信技术 的基础上提出了多载波 WCDMA通信技术, 其中, 包括双载波 WCDMA通信 技术。 在多载波通信技术中, 终端(UE, User Equipment ) 同时从多个不同载 波的小区接收数据, 网络侧为 UE指定其中一个载波为主载波, 其他载波为辅 载波。
高速下行分组接入 ( HSDPA, High Speed Downlink Packages Access )是 WCDMA的重要演进方式。但是,在 HSDPA技术中,仅当 UE处于 CELL— DCH 状态时, 网络侧和 UE之间支持多载波通信方式; 当 UE转入其他状态, 例如 CELL FACH状态、 或 CELL— PCH、 或 UTRA— PCH时, 网络侧与 UE之间的 数据传输仅支持单载波方式, 即, 网络侧与 UE之间仅通过主载波进行数据的 传输。 网络侧为 UE分配主载波上的上行公共资源, 用于 UE进行上行数据的 传输。 然而, 每个载波上的上行公共资源有限, 仅为 32组, 当使用该载波的 UE数量较多时, 必将导致该载波上的上行公共资源不足。
通过以上描述可知,如果 UE仅仅使用主载波上的上行公共资源进行上行 数据的传输, 当使用该主载波的 UE数量较多时, 将导致所述主载波上的上行 公共资源不足, 从而影响使用该主载波的 UE上行数据的发送。
发明内容
有鉴于此, 本发明要解决的技术问题是, 提供一种载波控制方法、 装置及 ***, 以避免网络侧与 UE之间单载波通信造成的上行公共资源不足问题。
为此, 本发明实施例釆用如下技术方案:
本发明实施例提供一种载波控制方法, 包括: 根据终端 UE使用的多载波中各载波的上行负荷, 确定所述 UE上行数据 传输所使用的载波;
将所述 UE上行数据传输所使用的载波的信息在预先设定的载波上向所述 UE发送。
本发明实施例同时提供一种载波控制装置, 包括: 载波确定模块、 以及数 据发送模块; 其中,
载波确定模块, 用于根据 UE所使用的多载波中各载波的上行负荷, 确定 UE上行数据传输所使用的载波; 数据发送模块,用于将载波确定模块确定的所述 UE上行数据传输所使用 载波的信息在预先设定的载波上向所述 UE发送。
本发明实施例还提供一种载波控制***, 包括: 网络侧设备; 其中, 网络侧设备, 用于根据 UE使用的多载波中各载波的上行负荷, 确定所述 UE上行数据传输所使用的载波, 并将确定的所述 UE上行数据传输所使用的 载波的信息在预先设定的载波上向所述 UE发送。
对于上述技术方案的技术效果分析如下:
本发明实施例中, UE进行多载波通信时, 根据 UE使用的多载波中各个 载波的上行负荷, 确定 UE上行数据传输所使用的载波, 将所述载波信息在预 先设定的载波上发送给该 UE, 从而使得网络侧能够支持与 UE之间的多载波 通信; 而且, 根据 UE所使用的多载波中各个载波的上行负荷, 确定 UE上行 数据传输所使用的载波, 从而避免了使用某一载波的 UE过多, 导致该载波上 的上行公共资源不足的问题, 也平衡了各个载波的上行负荷。
附图说明
图 1为一种本发明实施例载波控制方法流程示意图;
图 2为另一种本发明实施例载波控制方法流程示意图;
图 3为第三种本发明实施例载波控制方法流程示意图;
图 3a为现有技术高速共享控制信道( HS-SCCH, High-Speed Shared Control Channel ) order信令结构示意图;
图 3b为本发明实施例一种 HS-SCCH order信令结构示意图;
图 3c为本发明实施例另一种 HS-SCCH order信令结构示意图; 图 3d为本发明实施例又一种 HS-SCCH order信令结构示意图; 图 4为一种本发明实施例载波控制装置结构示意图;
图 5为另一种本发明实施例载波控制装置结构示意图;
图 6为第三种本发明实施例载波控制装置结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚, 下面将结合附图对本发明 作进一步地详细描述。
图 1为本发明实施例载波控制方法流程示意图,如图 1所示,该方法包括: 步骤 101 : 网络侧根据 UE所使用的多载波中各个载波的上行负荷, 确定 该 UE进行上行数据传输所使用的载波。
其中, 所述上行数据可以包括: 上行控制信令以及一般的上行数据。
本步骤中确定上行数据传输所使用的载波可以为: 网络侧判断 UE所使用 的各个载波的上行负荷,选择上行负荷最小的载波作为 UE上行数据传输所使 用的载波。
通过将上行负荷量最小的载波作为上行数据传输所使用的载波, 使得 UE 所使用的多个载波上的上行负荷尽量平衡。
步骤 102: 网络侧将所述 UE上行数据传输所使用的载波信息在预先设定 的载波上发送给 UE。
其中, 所述预先设定可以为: 由网络侧预先确定发送上述信息所使用的载 波, 并在 UE接入网络之后, 执行本步骤之前通知 UE。 所述预先设定的载波 可以由网络侧实时更新。
所述预先设定的载波为 UE所使用的多个载波中的一个,具体为哪一个载 波这里并不限定, 例如可以为主载波, 也可以为某一辅载波, 预先设定后, 网 络侧和 UE在该预先设定的载波上传输相应信息即可。
另外, 具体如何将所述载波信息发送给 UE可以参照步骤 204 中所述将
UE上行数据传输所使用的载波信息以及上行公共资源信息向 UE发送的方法, 区别仅在于: 步骤 204中需同时发送所述载波信息以及上行公共资源信息, 而 本步骤中只需发送所述载波信息。
UE接收到所述载波信息, 将在所述载波上进行反馈数据的发送。 在图 1所示的本发明实施例中, UE进行多载波通信时, 根据 UE使用的 多载波中各个载波的上行负荷, 确定 UE上行数据传输所使用的载波, 将所述 载波信息在预先设定的载波上发送给该 UE, 从而使得网络侧能够支持与 UE 之间的多载波通信; 而且, 根据 UE所使用的多载波中各个载波的上行负荷, 确定 UE上行数据传输所使用的载波, 从而避免了使用某一载波的 UE过多, 导致该载波上的上行公共资源不足的问题, 也平衡了各个载波的上行负荷。
图 2为另一本发明实施例载波控制方法流程示意图,如图 2所示, 该方法 包括:
步骤 201 : 网络侧判断 UE当前使用单载波或多载波进行通信, 如果使用 多载波进行通信, 则执行步骤 202; 否则, 将 UE当前使用的载波作为该 UE 的主载波, 并为 UE配置至少 1个辅载波, 将辅载波的信息发送给 UE, 以通 知 UE进行辅载波的配置, 之后, 执行步骤 202。
网络侧一般存储各个 UE所使用的载波的信息, 因此, 执行本步骤时, 网 络侧可以直接查询得到该 UE所使用的载波的信息, 进行所述判断。
所述网络侧为 UE配置辅载波具体可以为: 判断网络侧所使用的该 UE主 载波之外的载波的上行负荷量、或者下行负荷量、或者上下行总负荷量的大小, 相应将上行负荷量最小、或者下行负荷量最小、或者上下行总负荷量最小的一 个或多个载波作为 UE的辅载波。 配置的辅载波的数量在具体实现中可以根据 实际应用环境相应调整, 这里并不限定。
选择所述上下行总负荷最小的一个或几个载波作为 UE的辅载波的作用在 于: 使得网络侧所使用的载波上的负荷进一步平衡。
本步骤中网络侧向 UE发送所述配置的辅载波信息时可以通过在 UE主载 波的广播消息或无线资源控制(RRC )信令中携带所述辅载波信息实现。例如, 可以在 RRC连接建立消息中携带所述辅载波信息, 以通知 UE。
UE将根据接收到的所述辅载波信息进行配置, 从而实现与网络侧的多载 波通信。
步骤 201可选。
步骤 202: 网络侧根据 UE所使用的多载波中各个载波的上行负荷, 确定 该 UE进行上行数据传输所使用的载波。 其中, 本步骤的处理可以参照步骤 101 , 这里不再赘述。
步骤 203: 网络侧为 UE分配该 UE上行数据传输所使用的载波上的上行 公共资源。
所述上行公共资源用于该 UE进行上行数据的传输。
步骤 204: 网络侧将 UE上行数据传输所使用的载波信息及上行公共资源 信息通过预先设定的载波发送给 UE。
对于本步骤中的所述预先设定可以参照步骤 102中的相关描述,这里不再 赘述。
另外, 本步骤中网络侧发送所述载波信息和上行公共资源信息时, 可以通 过在所述预先设定的载波上发送控制信令完成, 具体的, 可以为: 通过在 HS-SCCH order信令中携带上述信息完成所述发送, 或者, 通过单独定义传输 上述信息的信令完成等等, 这里并不限定, 只要网络侧能够将所述载波信息和 上行公共资源信息传输给 UE即可。
以下,对于上述在 HS-SCCH order信令中携带载波信息和上行公共资源信 息给出具体实例:
网络侧确定某一辅载波需要激活或去激活时使用 HS-SCCH order信令。 HS-SCCH order信令的信元格式如图 2a所示。其中, 当 HS-SCCH传输一般信 息时, HS-SCCH上的信元格式中包括 CCS、 MOD, TBS、 HARQ Process ID , RV以及 NDI等字段。 而当 HS-SCCH传输 HS-SCCH order信令时, 将 CCS、 MOD, TBS字段内容依次设置为 "1110000" "1" "111101" , 其中, TBS字段 中的内容用于对 HS-SCCH order信令与 HS-SCCH携带的一般信息进行区分, 而 CCS、 MOD字段内容可视为未被占用; 将 HARQ Process ID字段对应的内 容用于指示 HS-SCCH order信令的类型, 包括 000, 001两种情况, 因此, 可 以认为 HARQ Process ID的前 2bit未被占用; RV字段对应的内容用于指示 HS-SCCH order信令的具体内容, 3bit已被全部占用; NDI字段的 lbit也未被 占用。
在本发明实施例中,基于兼容性的考虑,可以通过 HS-SCCH order信令中 当前未被占用的 CCS字段、 MOD字段、 NDI字段以及 RV字段的前 2bit进行 所述上行公共资源信息、 以及 UE上行数据传输所使用的载波信息的传输。 本发明实施例中, 一般的, 上行公共资源信息可以占用 5bit; 而 UE上行 数据传输所使用的载波信息所占用的比特数,可以根据 UE所使用的载波的数 量具体设定。 以下, 给出几种适用于本步骤中传输所述 UE上行数据传输所使 用的载波以及上行公共资源信息的 HS-SCCH order信令的信元格式:
( 1 )如图 2b所示, 选取 CCS字段的后 4bit以及 MOD字段的 lbit进行 上行公共资源信息的传输, 即图 3b中的 indexl对应的比特; 使用其他未被占 用的比特传输所述 UE上行数据传输所使用的载波信息。 例如, 在 UE所使用 的载波数不大于 4时,使用 HARQ Process ID字段中前 2bit进行 UE上行数据 传输所使用的载波信息的传输(图中未示出), 当 UE使用双载波进行通信时, 的传输, 如, 可以设 "Γ 表示主载波; "0" 表示辅载波; 而当 UE使用三载 波进行通信时, 可以使用所述前 2bit进行所述载波信息的传输, 如, 可以设为 "00" 表示主载波, "01" 表示辅载波 1 , "10" 表示辅载 2。
( 2 )如图 2c所示, 使用 CCS字段的前 5bit进行上行公共资源信息的传 输, 即图 3c中的 indexl对应的比特; 使用其他未被占用的比特传输 UE上行 数据传输所使用的载波信息。 例如, 在 UE所使用的载波数不大于 4时, 使用 HARQ Process ID字段中前 2bit中的 lbit或 2bit进行 UE上行数据传输所使用 的载波信息的传输(图中未示出)。
( 3 )如图 2d所示, 使用 CCS字段的 7bit中的前 5bit (图 3d中 indexl对 应的比特 )进行上行公共资源信息的传输; 后 2bit (图 3d中 indexl对应的比 特 )进行 UE上行数据传输所使用的载波信息的传输。
以上基于兼容性的考虑而给出了几种传输所述载波信息以及上行公共资 源信息的具体实现方法,但是, 本发明并不限定于上述传输所述载波信息以及 上行公共资源信息的方法, 例如, 还可以将 HS-SCCH信令的格式完全打乱, 重新定义 HS-SCCH信令中各个比特所指示的信息; 甚至, 还可以定义与 HS-SCCH order信令类似的, 在 HS-SCCH上传输所述载波信息以及上行公共 资源信息的信令等等。
进一步的, 图 2所示的本发明实施例中, 网络侧在确定 UE使用单载波通 信时, 将 UE 当前使用的载波作为主载波, 并为 UE 配置辅载波, 从而保证 UE处于多载波通信状态, 进一步避免了使用某一载波的 UE过多, 导致该载 波上的上行公共资源不足的问题, 平衡了各个载波的上行负荷。
图 3为第三种本发明实施例载波控制方法流程示意图,如图 3所示,包括: 步骤 301 : 网络侧判断 UE当前使用单载波或多载波进行通信, 如果使用 多载波进行通信, 则执行步骤 202; 否则, 将 UE当前使用的载波作为该 UE 的主载波, 并为 UE配置至少 1个辅载波, 将辅载波的信息发送给 UE, 以通 知 UE进行辅载波的配置, 之后, 执行步骤 202。
对于本步骤的处理可参照步骤 201 , 这里不再赘述。
其中, 步骤 301可选。
步骤 302: 网络侧根据 UE所使用的多载波中各个载波的上行负荷, 确定 该 UE进行上行数据传输所使用的载波。
对于本步骤的处理可参照步骤 202, 这里不再赘述。
步骤 303: 网络侧将为 UE分配的所述上行数据传输所使用的载波信息在 预先设定的载波上发送给 UE。
对于本步骤的处理可参照步骤 102, 这里不再赘述。
步骤 304: UE接收所述载波信息, 通过随机访问信道(RACH, Random Access Channel )在主载波上向网络侧发送请求信令。
所述请求信令用于: UE向网络侧请求该 UE上行数据传输所使用的载波 上的上行公共资源。
步骤 305: 网络侧接收所述请求信令, 为 UE分配所述 UE上行数据传输 所使用的载波上的上行公共资源,并将所述资源的信息在预先设定的载波上发 送给 UE。
本步骤中网络侧向 UE发送所述资源信息时,也可以通过预先设定载波上 的控制信令完成, 例如, 在 HS-SCCH order信令中携带所述资源信息, 或者, 定义新的控制信令等。 在 HS-SCCH order信令中携带所述上行公共资源信息 时,可以步骤 204所示的本发明实施例中所述的在 HS-SCCH order信令中携带 所述载波信息以及上行公共资源信息的方法, 这里不再赘述。
图 1〜图 3所示的本发明实施例可以在 UE处于非 CELL— DCH状态时执行, 例如, 可以设定执行周期, 当周期时间到来时, 触发执行图 1〜图 3所示的本 发明实施例载波控制方法等, 这里不再赘述。
图 3 所示的本发明实施例中, 网络侧在确定 UE使用单载波通信时, 将 UE当前使用的载波作为主载波, 并为 UE配置辅载波, 从而保证 UE处于多 载波通信状态, 进一步避免了使用某一载波的 UE过多, 导致该载波上的上行 公共资源不足的问题, 平衡了各个载波的上行负荷。 另外, 网络侧在确定 UE 获取到该 UE上行数据传输所使用的载波后, 根据 UE的请求为 UE分配所述 载波上的上行公共资源, 使得网络侧为 UE分配的资源更为合理, 避免了资源 浪费。
图 4 为本发明实施例载波控制装置结构示意图, 设置于网络侧。 如图 4 所示, 包括: 载波确定模块 410、 数据发送模块 420; 其中,
载波确定模块 410 , 用于根据 UE所使用的多载波中各载波的上行负荷, 确定 UE上行数据传输所使用的载波。
数据发送模块 420, 用于将载波确定模块 410确定的 UE上行数据传输所 使用的载波信息在预先设定的载波上发送给 UE。
图 4所示的本发明实施例载波控制装置中,载波确定模块 410根据 UE所 使用的多载波中各个载波的上行负荷, 确定 UE上行数据传输所使用的载波, 并将确定的所述载波的信息发送给 UE, 避免了各 UE使用单载波通信导致的 上行公共资源不足问题, 平衡了各个载波的上行负荷。
图 5为第二种本发明实施例载波控制装置结构示意图,设置于网络侧。如 图 5所示, 包括:载波确定模块 510、数据发送模块 520、辅载波配置模块 530、 资源分配模块 540; 其中,
辅载波配置模块 530,用于判断 UE使用单载波或多载波进行通信,在 UE 使用单载波进行通信时, 将所述 UE使用的单载波作为主载波, 并为所述 UE 配置至少 1个辅载波。
载波确定模块 510,用于辅载波配置模块 530确定 UE使用多载波通信时, 根据 UE所使用的多载波中各载波的上行负荷, 确定 UE上行数据传输所使用 的载波。
数据发送模块 530, 用于将载波确定模块 510确定的 UE上行数据传输所 使用的载波信息、以及资源分配模块 530为 UE分配的上行公共资源信息在预 先设定的载波上发送给 UE; 还用于将辅载波配置模块 530为 UE配置的辅载 波信息在该 UE的主载波上向所述 UE发送。
资源分配模块 540, 用于根据载波确定模块 510确定的 UE上行数据传输 所使用的载波,为 UE分配所述载波上的、上行数据传输所需的上行公共资源。
图 5所示的本发明实施例中,辅载波配置模块 530在确定 UE使用单载波 进行通信时, 将 UE当前使用的载波作为主载波, 并为 UE配置辅载波, 从而 保证 UE处于多载波通信状态, 进一步避免了使用某一载波的 UE过多, 导致 该载波上的上行公共资源不足的问题, 平衡了各个载波的上行负荷。
图 6为另一种本发明实施例载波控制装置结构示意图,如图 6所示, 该装 置包括: 载波确定模块 610、 数据发送模块 620、 辅载波配置模块 630、 资源 分配模块 640、 以及数据接收模块 650; 其中,
辅载波配置模块 630,用于判断 UE使用单载波或多载波进行通信,在 UE 使用单载波进行通信时, 将所述 UE使用的单载波作为主载波, 并为所述 UE 配置至少 1个辅载波。
载波确定模块 610,用于辅载波配置模块 630确定 UE使用多载波通信时, 根据 UE所使用的多载波中各载波的上行负荷, 确定 UE上行数据传输所使用 的载波。
资源分配模块 640, 用于根据数据接收模块 650接收到的所述请求信令, 为 UE分配所述载波上的上行公共资源。
数据发送模块 620, 用于将载波确定模块 610确定的 UE上行数据传输所 使用的载波信息、以及资源分配模块 640为 UE分配的上行公共资源信息在预 先设定的载波上向所述 UE发送; 还用于将辅载波配置模块 630为 UE配置的 辅载波信息在该 UE的主载波上向所述 UE发送。
数据接收模块 650 ,用于通过 RACH接收 UE使用主载波发来的请求信令, 所述请求信令用于向网络侧申请该 UE上行数据传输所使用的载波上的上行公 共资源。
图 6所示的本发明实施例载波控制装置中,资源分配模块 640在数据接收 模块 650接收到 UE的请求信令后, 根据 UE的请求为 UE分配所述载波上的 上行公共资源, 使得网络侧为 UE分配的资源更为合理, 避免了资源浪费。。 本发明实施例一种载波控制***, 包括: 网络侧设备; 其中,
网络侧设备, 用于根据 UE使用的多载波中各载波的上行负荷, 确定所述 UE上行数据传输所使用的载波, 并将确定的所述 UE上行数据传输所使用的 载波的信息在预先设定的载波上向所述 UE发送。
本发明实施例载波控制***中, 网络侧设备在 UE进行多载波通信时, 根 据 UE使用的多载波中各个载波的上行负荷, 确定 UE上行数据传输所使用的 载波, 将所述载波信息在预先设定的载波上发送给该 UE, 从而使得网络侧能 够支持与 UE之间的多载波通信; 而且, 网络侧设备根据 UE所使用的多载波 中各个载波的上行负荷, 确定 UE上行数据传输所使用的载波, 从而避免了使 用某一载波的 UE过多, 导致该载波上的上行公共资源不足的问题, 也平衡了 各个载波的上行负荷。
本领域普通技术人员可以理解,实现上述实施例载波控制方法的过程可以 通过程序指令相关的硬件来完成, 所述的程序可以存储于可读取存储介质中, 该程序在执行时执行上述方法中的对应步骤。 所述的存储介质可以如: ROM/RAM, 磁碟、 光盘等。
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为本发明的保护范围。
+

Claims

权 利 要 求
1、 一种载波控制方法, 其特征在于, 所述方法包括:
根据终端 UE使用的多载波中各载波的上行负荷, 确定所述 UE上行数据 传输所使用的载波;
将所述 UE上行数据传输所使用的载波的信息在预先设定的载波上向所述
UE发送。
2、 根据权利要求 1所述的方法, 其特征在于, 在所述确定 UE上行数据 传输所使用的载波之后, 且在所述发送所述载波的信息之前, 该方法进一步包 括:
分配所述 UE上行数据传输所使用的载波上的上行公共资源; 相应的, 通过所述预先设定的载波向 UE发送所述上行公共资源的信息。
3、 根据权利要求 1所述的方法, 其特征在于, 向 UE发送所述载波的信 息之后, 该方法进一步包括:
通过随机访问信道 RACH接收 UE在主载波上发来的请求信令,所述请求 信令用于向网络侧申请所述确定的 UE上行数据传输所使用的载波上的上行公 共资源; 相应的
分配所述载波上的上行公共资源,将所述上行公共资源的信息通过所述预 先设定的载波向所述 UE发送。
4、根据权利要求 1至 3任一项所述的方法, 其特征在于, 在所述确定 UE 上行数据传输所使用的载波之前, 该方法进一步包括:
在 UE使用单载波进行通信时, 将所述 UE使用的单载波作为主载波, 并 为所述 UE配置至少 1个辅载波, 将所述配置的辅载波的信息通过所述 UE的 主载波向所述 UE发送。
5、 根据权利要求 4所述的方法, 其特征在于, 所述为 UE配置至少 1个 辅载波具体为:
根据除所述 UE的主载波之外的载波的上行负荷量、 或下行负荷量、 或上 下行总负荷量的大小, 相应将上行负荷量、 或下行负荷量、 或上下行总负荷量 最小的一个或多个载波作为所述 UE的辅载波。
6、 根据权利要求 1至 3任一项所述的方法, 其特征在于, 所述根据 UE 使用的多载波中各载波的上行负荷,确定所述 UE上行数据传输所使用的载波 具体为:
根据 UE使用的多载波中各个载波的上行负荷量的大小,将上行负荷量最 小的载波作为所述 UE上行数据传输所使用的载波。
7、 根据权利要求 2或 3所述的方法, 其特征在于, 所述载波信息和 /或上 行公共资源信息通过预先设定载波上的 HS-SCCH order信令中未被占用的下 述字段之一或任意组合携带: CCS字段、 和 /或 MOD字段、 和 /或 NDI字段、 和 /或 HARQ Process ID字段中前两比特。
8、 一种载波控制装置, 其特征在于, 包括: 载波确定模块、 以及数据发 送模块; 其中,
载波确定模块, 用于根据 UE所使用的多载波中各载波的上行负荷, 确定 UE上行数据传输所使用的载波;
数据发送模块,用于将载波确定模块确定的所述 UE上行数据传输所使用 载波的信息在预先设定的载波上向所述 UE发送。
9、 根据权利要求 8所述的装置, 其特征在于, 该装置进一步包括: 资源分配模块,用于根据载波确定模块确定的 UE上行数据传输所使用的 载波, 为 UE分配该载波上的上行公共资源;
相应的, 数据发送模块还用于: 在发送所述载波信息的同时, 发送资源分 配模块为 UE分配的所述上行公共资源信息。
10、 根据权利要求 8所述的装置, 其特征在于, 该装置进一步包括: 数据接收模块,用于数据发送模块向 UE发送所述载波信息后,通过 RACH 接收 UE在主载波上发来的请求信令, 所述请求信令用于向网络侧申请该 UE 上行数据传输所使用的载波上的上行公共资源;
资源分配模块, 用于根据数据接收模块接收到的所述请求信令, 为 UE分 配所述载波上的上行公共资源;
相应的, 数据发送模块还用于: 在预先设定的载波上, 将资源分配模块为 UE分配的上行公共资源的信息向 UE发送。
11、 根据权利要求 8至 10任一项所述的装置, 其特征在于, 该装置进一 步包括: 辅载波配置模块, 用于在 UE使用单载波进行通信时, 将所述 UE使 用的单载波作为主载波, 并为所述 UE配置至少 1个辅载波;
相应的, 数据发送模块还用于: 将辅载波配置模块为 UE配置的所述辅载 波的信息在所述 UE的主载波上向所述 UE发送。
12、 一种载波控制***, 其特征在于, 包括: 网络侧设备; 其中, 网络侧设备, 用于根据 UE使用的多载波中各载波的上行负荷, 确定所述
UE上行数据传输所使用的载波, 并将确定的所述 UE上行数据传输所使用的 载波的信息在预先设定的载波上向所述 UE发送。
PCT/CN2009/070304 2009-01-23 2009-01-23 一种载波控制方法、装置及*** WO2010083656A1 (zh)

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