Receiving/sending method and receiving/sending equipment in time division-synchronous code division multiple access system
A code division multiple access and time division synchronization technology, applied in the field of blind detection technology, can solve problems such as increasing power consumption, reducing battery usage time, and increasing terminal UE power consumption, and achieves extended usage time, reduced energy consumption, and low complexity. Effect
Active Publication Date: 2011-08-17
SPREADTRUM COMM (SHANGHAI) CO LTD
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Problems solved by technology
However, for some low-rate services such as VoIP, data does not necessarily arrive in every TTI for a specific UE. If the UE is allowed to perform blind detection operations in every TTI, it will increase the power consumption of the terminal UE and reduce the battery life
[0043] In addition, when the downlink service is in a relatively long-term silent period, for example, during a VoIP call service, when one user is talking and the other user is usually listening, the resource that is blindly detected by the UE of the speaking party will be sent to the UE There is almost no data, and the blind detection operation will inevitably increase additional power consumption
Method used
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no. 3 approach
[0146] In the third embodiment, the frequency reduction condition for blind detection is one or a combination of the following conditions:
[0147] After receiving the UE's feedback from the HS-SICH last time, the network side does not send data to the UE on the blind detection resource for q consecutive specified periods, and does not perform retransmission scheduling of the blind detection data through the HS-SCCH;
[0148] The network side sends signaling to the UE indicating that the frequency of blind detection is required to be reduced.
[0149] The fourth embodiment of the present invention relates to a receiving method in a TD-SCDMA system, the process of which is as follows Figure 8 shown.
[0150] In step 801, the UE configures non-continuous blind detection resources in a specified period (subframe, frame, TTI). Blind detection resources include TTI (or subframe, frame), code channel, time slot and transport block size, etc.
[0151] The UE configures blind dete...
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The invention relates to a time division-synchronous code division multiple access system (TD-SCDMA), and discloses a receiving / sending method and receiving / sending equipment in the time division-synchronous code division multiple access system. The method and the equipment can save the electric power of a terminal of the TD-SCDMA. In the method, primary transmission of a transmission block is performed by passing a discontinuous blind detection resource on a specific cycle through an HS-DSCH under the condition that a network side does not perform scheduling of an HS-SCCH in advance; if the primary transmission of the transmission block fails, the transmission block is retransmitted on the HS-DSCH through the scheduling of the HS-SCCH; and the specific cycle can be a subframe or a frame or a TTI. In addition, blind detection modes with different frequencies are introduced to ensure that UE can flexibly adjust a receiving mode according to the traffic.
Description
technical field [0001] The invention relates to a time division synchronous code division multiple access system, in particular to a blind detection technology in the time division synchronous code division multiple access system. Background technique [0002] With the continuous development of communication technology and the increasing requirements of users for service quality, the 3rd Generation Partnership Project (3rd Generation Partnership Project, referred to as "3GPP") standard defined data up to 2Mbit / s before Release 4. The transmission rate has gradually been unable to meet the needs of users for high-speed data services. In this case, 3GPP introduced a High Speed Downlink Packet Access (High Speed Downlink Packet Access, "HSDPA" for short) technology in the Release 5 specification. [0003] HSDPA is an enhanced solution proposed by 3GPP Release 5, the main purpose is to support high-speed packet data services, and to obtain lower time delay, higher system th...
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IPC IPC(8): H04W56/00H04L1/18
Inventor 石璟师延山周加铳
Owner SPREADTRUM COMM (SHANGHAI) CO LTD