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Joint transmission method and system

A technology of joint transmission and access network, applied in the field of communication, can solve the problem that user equipment cannot adopt joint transmission, etc., and achieve the effect of improving the data transmission rate

Active Publication Date: 2012-09-26
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention is proposed in view of the problem that the user equipment with a single radio frequency transceiver cannot adopt joint transmission in the related art. Therefore, the main purpose of the present invention is to provide a joint transmission method and system to solve the above problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] UE1 accesses the network through the UMTS system and is in a connected state, UE1 accesses cell 1 under the jurisdiction of base station 1, and base station 1 is under the jurisdiction of RNC. Cell 2, which has the same coverage as cell 1, is governed by base station 2, which belongs to the LTE system.

[0052] In the UMTS system, an Iub interface is established between the RNC and the base station 1 . Since the RNC may implement joint transmission with the base station 2 in LTE, a new interface is established between the RNC and the base station 2 for transferring data and control signaling. The establishment of the interface between the RNC and the base station 2 can be implemented by an operation and maintenance (Operation & Maintenance) server.

[0053] UE1 has established a data radio bearer (Data Radio Bearer, DRB for short), which is represented by DRB1 here. Due to new service requirements, UE1 wishes to establish DRB2. However, due to the high transmission ra...

Embodiment 2

[0070] The user equipment UE2 accesses the network through the LTE system and is in a connected state, and the UE2 accesses the cell 3 under the jurisdiction of the base station 3 . The base station 4 in UMTS is governed by the RNC. The coverage area of ​​the cell 4 under the jurisdiction of the base station 4 overlaps with that of the cell 3 .

[0071] UE2 has established a Data Radio Bearer (DRB), which is represented by DRB1 here. Since the real-time transmission rate of UE2 is very high, base station 3 does not have enough resources to satisfy UE2, so base station 3 hopes to use joint transmission to enable UE2 to obtain more wireless resources.

[0072] In the UMTS system, if the user equipment uses HSPA technology (HSUPA (High Speed ​​Uplink Packet Access) for the uplink and HSDPA (High Speed ​​Downlink Packet Access) for the downlink), the base station is responsible for the scheduling of the user equipment, such as the spread spectrum used by the user equipment Codes...

Embodiment 3

[0083] User equipment UE1 accesses the network through the UMTS system and is in a connected state, UE1 accesses cell 1 under the jurisdiction of base station 1, and base station 1 is under the jurisdiction of RNC. Cell 2, which has the same coverage as cell 1, is governed by base station 2, which belongs to the LTE system.

[0084] UE1 has established a Data Radio Bearer (DRB), which is denoted by DRB1 here. Due to new service requirements, UE1 wishes to establish DRB2. However, due to the high transmission rate required by DRB2, the available resources of cell 1 cannot meet the requirements of DRB2. The RNC decides to use joint transmission to establish DRB2 through the wireless resources of cell 2. According to the obtained capability information of UE1, RNC finds that the user equipment has only one radio frequency transceiver. RNC decides to use time division multiplexing to realize joint transmission. In this embodiment, no interface is established between the RNC and t...

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Abstract

Disclosed are a joint transmission method and system. The method includes: an access network element of a first access network and an access network element of a second access network negotiate an activation time of user equipment, wherein the activation time is used by the user equipment to perform joint transmission using the access network element of the first access network and the access network element of the second access network respectively by means of time division multiplexing; and the access network element of the first access network sends the activation time to the user equipment. The joint transmission method and system ensure that the user equipment of a single radio frequency transceiver performs joint transmission, thus improving the data transmission rate.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a joint transmission method and system. Background technique [0002] figure 1 is a schematic diagram of a 3GPP access system architecture according to related technologies, such as figure 1 As shown, the architecture diagram of the 3GPP access system includes a radio access network part and a core network part, wherein the radio access network part includes a GSM EDGE Radio Access Network (GSM EDGE Radio Access Network, referred to as GERAN), a general mobile communication system (Universal Mobile Telecommunications System, UMTS for short) access network and Long-Term Evolution (Long-Term Evolution, LTE for short) access network. Specifically, the GERAN and UMTS access networks are connected to the core network element Serving General Packet Radio Service Supporting Node (SGSN for short), and the LTE access network and the core network element mobility The management entity...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/16H04J3/00H04B1/40
CPCH04L5/0078H04W28/16H04J3/00H04W88/06H04B1/40H04L5/0035H04L5/0023
Inventor 邓云
Owner ZTE CORP
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