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Method, system and equipment for transmitting and receiving uplink information

A user equipment and uplink subframe technology, applied in the field of transmission and reception of uplink information, can solve the problems of carrier uplink transmission time misalignment, SC-FDMA symbol collision, etc.

Active Publication Date: 2012-07-11
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] To sum up, in current Rel-11, the misalignment of uplink transmission time of carriers belonging to different TA groups will cause collision of uplink channels / signals in some SC-FDMA symbols

Method used

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  • Method, system and equipment for transmitting and receiving uplink information
  • Method, system and equipment for transmitting and receiving uplink information
  • Method, system and equipment for transmitting and receiving uplink information

Examples

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Embodiment Construction

[0046] In the embodiment of the present invention, a user equipment with multiple uplink TAs determines that the uplink carrier reserves K SC-FDMA symbols in the current uplink subframe without transmitting uplink information, and maps the uplink information to be transmitted to the uplink carrier in the current uplink subframe The transmission is performed on other SC-FDMA symbols used to transmit uplink information except the K SC-FDMA symbols in the frame. Since it is determined that the uplink carrier reserves K SC-FDMA symbols in the current uplink subframe without transmitting uplink information, it avoids adjacent subframes caused by carriers belonging to different TA groups in Rel-11 due to misalignment of uplink transmission times Collision occurs in some SC-FDMA symbols in the uplink channel / signal.

[0047] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0048] In the following desc...

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Abstract

The embodiment of the invention relates to the technical field of wireless communication, in particular to a method, a system and equipment for transmitting and receiving uplink information, which are used for solving the problem that uplink channels / signals in neighboring subframes collide in partial single carrier-frequency division multiple access (SC-FDMA) symbols due to unaligned uplink transmission time for carriers in different time advance (TA) groups. The method comprises the following steps of: determining that the uplink carrier reserves K SC-FDMA symbols in the current uplink subframe so as not to transmit the uplink information by user equipment with a plurality of uplink TA groups, and mapping the uplink information to be transmitted on other SC-FDMA symbols except the K SC-FDMA symbols reserved in the current uplink subframe so as to transmit the uplink information. By the method, system and equipment for transmitting and receiving the uplink information, the problem that the uplink channels / signals in the neighboring subframes collide in the SC-FDMA symbols due to unaligned uplink transmission time for carriers in different TA groups can be solved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method, system and equipment for transmitting and receiving uplink information. Background technique [0002] LTE-A (Long Term Evolution-Advanced, Long Term Evolution Enhancement) Rel-10 (Release-10, Release 10) uplink only supports Intra-band CA (Carrier Aggregation, Carrier Aggregation). The signal propagation characteristics are similar, so each carrier adjusts the uplink transmission time based on the uplink TA (Time Advance, timing advance) obtained by the RA (Random Access) process on the PCC (Primary Component Carrier, main component carrier) , that is, the uplink transmission time of multiple carriers is aligned, so the uplink transmission time on different carriers is aligned, and the uplink channel / signal in the current uplink subframe on different carriers will not be different from the previous and / or next adjacent uplink subframe. Uplink cha...

Claims

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Application Information

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IPC IPC(8): H04W28/26H04W74/08
CPCH04L5/0044H04W72/04H04L5/0023H04L5/0053H04L5/001
Inventor 高雪娟林亚男沈祖康
Owner DATANG MOBILE COMM EQUIP CO LTD
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