In general, 5G offers better broadband bandwidth, capacity and reliability to levels far beyond 4G. The networks use 4G or new specified 5G frequency bands to operate. These 5G frequency bands offer speeds as high as 20Gbps. America has already begun pre-commercial deployment for very high 5G MMW frequency bands According to AndroidAuthority, downlink speeds are comparable between the two.
Theoretical speeds boast downlink speeds of Mbps and uploads of 75Mbps. Because of this, LTE is not compatible with 2G and 3G networks and thus, functions on an entirely different wireless spectrum. Unfortunately, this means that erecting an LTE network requires it to be built from the ground up. This is one of the main factors behind the delayed launch of complete 4G LTE networks. LTE, however, is not the polar change you may imagine.
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May 9, What is HSPA? Also, 3GPP examined further specifications in Release 9. For Enhanced UL scheduling is still carried out by the NodeB, now the receiving node, while transport format selection is done by the scheduled UEs, see figure 6. The NodeB will measure the interference level on the UL and receive information about buffer status in the UEs, and make a decision about which UEs that are to be scheduled.
Information about scheduling decision is delivered in scheduling grants, which also provides information about how much power the UE s may use when transmitting.
The higher the power the higher the bitrate, and the interference! In the DL the shared resources are channelization codes and power, in the UL the shared resource is contribution to the intra-cell interference. MIMO, e. Spatial Multiplexing, is used to increase the overall bitrate through transmission of two or more different data streams on two or more different antennas - using the same channelization codes at the same time, separated through use of different data precoding and different pilot channels transmitted from each Tx-antenna - to be received by two or more Rx-antennas, see figure 8.
Release 17 Schedule. Recorded 3GPP webinars and interviews no registration needed. Subscribe to our Newsletter 'Highlights'. A Global Partnership. The Mobile Broadband Standard. Figure 1. HSDPA scheduling and link adaptation are performed in NodeB In R99 the RNC is in charge of everything relating to handling of radio resources; scheduling as well as selection of transport format and setting of target for power control outer loop power control in order to provide the data rate required for the specific service for the connected UEs.
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