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Component carrier updating method and device

A technology for composing carriers and updating units, applied in electrical components, wireless communication, network planning, etc., can solve the problems of cross-carrier scheduling impact, CI value cannot be reasonably allocated, service interruption, etc., to achieve cross-carrier scheduling, avoid CI The effect of value assignment confusion

Inactive Publication Date: 2011-09-21
陈友
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] If the CC is updated, its CI value cannot be allocated reasonably, and the cross-carrier scheduling will be affected, which may even cause the service interruption of the bearer

Method used

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  • Component carrier updating method and device
  • Component carrier updating method and device
  • Component carrier updating method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] see figure 1 , this embodiment provides a method for updating a component carrier, including:

[0037] 101: Receive a CC update indication message sent by the base station, or send a CC update indication message to the terminal, where the CC update indication message is: a CC addition indication message, a CC activation indication message, a CC configuration indication message, or a CC replacement indication message;

[0038] Wherein, the CC update indication message may also be: a CC removal indication message, a CC deactivation indication message or a CC deconfiguration indication message;

[0039] 102: When the CC update indication message is a CC addition / activation / configuration indication message, according to the frequency of the added / activated / configured CC or the size of the C-CI (Cell Specific Component Carrier Indicator, cell specific carrier identifier) ​​value, Allocate CI values ​​to the added / activated / configured CCs sequentially starting from the curre...

Embodiment 2

[0048] see figure 2 , this embodiment provides a method for updating a component carrier, and the specific steps are as follows:

[0049] 200: The base station and the terminal assign a CI value to the CC in the specified state;

[0050] Wherein, the specified state is an activation state or a configuration state, and the configuration state includes "configured and activated" and "configured but not activated".

[0051] The base station may specifically be an eNodeB (evolved Node B, evolved base station), and the terminal may specifically be a UE (User Equipment, user equipment), which is not limited in this embodiment. In addition, the CI values ​​involved in this implementation are all terminal-specific CI values.

[0052] Wherein, this step is optional, and this embodiment does not limit the specific implementation method of this step. The following describes an implementation method of this step, see image 3 .

[0053] 200a: After the terminal RRC initial connection...

Embodiment 3

[0115] see Figure 7 , this embodiment provides an apparatus for updating a component carrier, including:

[0116] The receiving module 301 is configured to receive a component carrier CC update instruction message sent by the base station, the CC update instruction message is: a CC addition instruction message, a CC activation instruction message, a CC configuration instruction message or a CC replacement instruction message;

[0117]The update module 302 includes any one or any combination of the first update unit 302a and the second update unit 302b. Figure 7 Including the two units at the same time, this embodiment should not be construed as a limitation of the present invention;

[0118] The first update unit 302a is configured to, when the CC update indication message received by the receiving module 301 is a CC addition / activation / configuration indication message, according to the frequency of the added / activated / configured CC or the cell-specific carrier identifier C...

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Abstract

The embodiment of the invention discloses a component carrier updating method and a component carrier updating device, which belong to the field of wireless communication. The method comprises the following steps of: receiving a component carrier (CC) updating indication message from a base station or transmitting the CC updating indication message to a terminal, wherein the CC updating indication message is a CC addition / activation / configuration / replacement indication message; if the CC updating indication message is the CC addition / activation / configuration indication message, allocating carrier indicator (CI) values to added / activated / configured CC sequentially from the lowest given idle CI value of the terminal according to the frequency or cell-CI (C-CI) values of the added / activated / configured CCs; and if the CC updating indication message is the CC replacement indication message, allocating the CI values of removed / deactivated / de-configured CCs to the added / activated / configured CCs. The device comprises a receiving / transmission module and an updating module. The embodiment of the invention realizes the rational allocation of the CI values of the CCs during CC updating, and avoids CI value allocation chaos to successfully realize cross-carrier scheduling.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method and device for updating component carriers. Background technique [0002] CA (Carrier Aggregation, Carrier Aggregation) technology aggregates multiple CCs (Component Carriers, composing a carrier) into a carrier with a larger bandwidth, which can support high-speed data transmission. [0003] For the requirement of cross-carrier scheduling, a CI (Carrier Indicator, carrier identifier) ​​value is introduced for CC. The cross-carrier scheduling means that the scheduling information of one CC can be notified to the terminal through the PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) of other CCs. In a converged network scenario, mutual interference of CCs among macro cells, micro cells, and home base stations can be avoided. For example, terminal 1 uses CC1, CC2, and CC3 of base station 1, and the CI values ​​​​corresponding to each CC ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/02H04W68/00H04W72/04
Inventor 常俊仁李亚娟
Owner 陈友
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