Mobile station and base station for communicating in a wireless communication network
A wireless communication network and communication network technology, applied in the field of resource allocation schemes, can solve problems such as difficulty in reaching base stations for messages, inability to increase transmission power, and application of system coverage, and achieve the effects of reduced load, good coverage, and low system cost
Active Publication Date: 2016-07-06
OPTIS WIRELESS TECH LLC
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Problems solved by technology
Even if some kind of (open-loop or closed-loop) power control is applied to balance the receive power from near and far users, there will always be users who have reached their power limit and therefore can no longer increase their transmit power
In such a power-limited scenario, messages from cell-edge users will have difficulty reaching the base station when the load is high, since it will always lose out in competition with other users that are closer to the base station
This forces undesired restrictions on system coverage
Method used
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[0068] figure 1 A general case is illustrated in a wireless communication network 100 where first and second mobile stations A and B are located near the center of a coverage area or cell 130 covered by base station 110 and a third mobile station C is located at the edge of the cell, away from base station 110 . The third mobile station C is also located at the edge of a second coverage area or cell 140 covered by the second base station 120 . In this cell 140 , the fourth mobile station D is located near the center of the cell 140 . Currently, if mobile stations A and B both need to transmit scheduled data simultaneously and neither of them has received a valid uplink transmission grant from base station 110, in order to be assigned such a grant, they must submit a request to the base station 110 on a contention-based channel. 110 Send a scheduling request. If these scheduling request transmissions are transmitted on the same scheduling request channel at the same time, the...
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The present invention relates to mobile stations and base stations for communicating in wireless communication networks. The present invention discloses a mobile station (200), a base station (300), a method and a computer program for communicating in a wireless communication network (100), wherein cell edge users experiencing difficulties on contention-based channels behave differently than Treat users who do not have power constraints and / or do not experience conflicts. Proposed solutions to this problem may be through communication on orthogonal scheduling channels, or by forcing mobile stations (200) that have successfully sent their data to wait for a specific time period or by based on the signal fading experienced by different mobile stations (200) The mobile stations (200) are divided into different groups so that cell edge users are treated differently than users closer to the base station (300).
Description
[0001] This application is an invention patent application with the application number 200680056391.2, the application date is November 17, 2006, and the title of the invention is "a mobile station communicating with a base station via a separate uplink when the channel quality parameter falls below a predefined threshold" divisional application. technical field [0002] The present invention relates to resource allocation schemes in wireless communication networks. Background technique [0003] Throughout the development of wireless communication networks, but also of mobile and ad-hoc communication networks, the problem of efficiently allocating radio resources to users using radio links has been the subject of different optimization schemes. Relevant parameters in such an optimization scheme are user throughput, delay time and fairness of radio resource allocation. Often, different optimization schemes aim to maximize one of these parameters because they conflict. The s...
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IPC IPC(8): H04W72/08H04W72/54
CPCY02D30/70
Inventor P.K.弗伦杰P.马格努森N.威伯格
Owner OPTIS WIRELESS TECH LLC