Determination method of service cell, base station and user equipment
A technology of serving cell and determination method, applied in power management, wireless communication, electrical components and other directions, can solve the problem of undetermined aperiodic channel state information, etc.
Active Publication Date: 2011-05-18
ZTE CORP
View PDF2 Cites 19 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0014] However, in the carrier aggregation scenario, in the random access response grant in the non-contention random access process, whether the channel quality information request indicates the aperiodic channel state information on the primary serving cell or the aperiodic channel state information on the secondary serving cell not sure yet
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0047] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. The following examples are only used to illustrate and explain the present invention, but not to limit the technical solution of the present invention.
[0048] Such as image 3 As shown, it is a flow chart of an embodiment of the method for indicating a serving cell in the present invention. This embodiment is described from the base station side. The method includes:
[0049] Step 301, the base station sends a random access response message to the user equipment (UE), and the random access response message includes a random access response authorization;
[0050] Step 302: Instruct the UE to trigger a predefined aperiodic channel state information (CSI) report of the serving cell through the channel quality information request (CQIrequest) signaling in the random access response grant.
[0051] In the random acce...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides determination and indication methods of a service cell, a base station and user equipment (UE), wherein the determination method of the service cell is applied to a carrier aggregation-based random access process of an LTE-A (Long Term Evolution-Advanced) system. The method comprises the following steps of: receiving a random access response message sent by the base station by the UE, wherein the random access response message comprises random access response authority; and triggering a nonperiodic channel state information (CSI) report of a pre-defined service cell by the UE through a channel quality information request (CQI request) signaling in the random access response authority. In the technical scheme, a terminal is indicated through the CQI request signaling in the random access response authority to trigger the nonperiodic CSI report on the pre-defined service cell, and a power control adjustment state accumulating value in PUCH transmission power of all service cells corresponding to the UE is reset after the UE receives the random access response message.
Description
technical field [0001] The present invention relates to mobile communication technology, in particular to a method for determining a serving cell, a base station and user equipment. Background technique [0002] The radio frame (RadioFrame, referred to as RF) in the long term evolution (Long Term Evolution, referred to as LTE) system includes Frequency Division Duplex (Frequency Division Duplex, referred to as FDD) mode and Time Division Duplex (Time Division Duplex, referred to as TDD) ) mode frame structure. Such as figure 1 Shown is a schematic diagram of the frame structure of the existing FDD mode. In the schematic diagram, a 10 millisecond (ms) wireless frame is composed of twenty time slots (slots) with a length of 0.5ms and numbered 0-19. Slots 2i and 2i+1 form a subframe (subframe) i with a length of 1 ms; as figure 2 As shown, it is a schematic diagram of the frame structure of the existing TDD mode. In this schematic diagram, a 10ms wireless frame is composed ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H04W52/04H04W74/08
Inventor 吴欣戴博左志松梁春丽
Owner ZTE CORP